./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-37.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-37.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5a6bb657185a8971ac59b78fdd6847366fd3bff8285db535888533d16204ace0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:03:18,841 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:03:18,925 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:03:18,931 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:03:18,933 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:03:18,963 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:03:18,965 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:03:18,965 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:03:18,966 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:03:18,968 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:03:18,968 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:03:18,969 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:03:18,969 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:03:18,970 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:03:18,970 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:03:18,971 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:03:18,971 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:03:18,971 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:03:18,972 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:03:18,972 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:03:18,972 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:03:18,973 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:03:18,974 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:03:18,974 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:03:18,974 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:03:18,974 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:03:18,975 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:03:18,975 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:03:18,975 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:03:18,975 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:03:18,976 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:03:18,976 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:03:18,976 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:03:18,976 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:03:18,977 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:03:18,977 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:03:18,977 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:03:18,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:03:18,979 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:03:18,979 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:03:18,979 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:03:18,980 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:03:18,980 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5a6bb657185a8971ac59b78fdd6847366fd3bff8285db535888533d16204ace0 [2024-11-19 00:03:19,257 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:03:19,288 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:03:19,292 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:03:19,293 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:03:19,294 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:03:19,296 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-37.i [2024-11-19 00:03:20,888 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:03:21,195 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:03:21,196 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount500_file-37.i [2024-11-19 00:03:21,218 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79319cf5e/ad93af1d9d284daab9c61e2ca7836776/FLAG8a31c2d98 [2024-11-19 00:03:21,231 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79319cf5e/ad93af1d9d284daab9c61e2ca7836776 [2024-11-19 00:03:21,234 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:03:21,235 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:03:21,236 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:03:21,236 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:03:21,243 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:03:21,244 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:03:21" (1/1) ... [2024-11-19 00:03:21,245 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ca7e276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:03:21, skipping insertion in model container [2024-11-19 00:03:21,247 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:03:21" (1/1) ... [2024-11-19 00:03:21,307 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:03:21,515 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/hardness-nfm22/hardness_operatoramount_amount500_file-37.i[916,929] [2024-11-19 00:03:21,807 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:03:21,836 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:03:21,848 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/hardness-nfm22/hardness_operatoramount_amount500_file-37.i[916,929] [2024-11-19 00:03:22,002 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:03:22,026 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:03:22,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:03:22 WrapperNode [2024-11-19 00:03:22,027 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:03:22,028 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:03:22,029 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:03:22,029 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:03:22,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:03:22" (1/1) ... [2024-11-19 00:03:22,074 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:03:22" (1/1) ... [2024-11-19 00:03:22,183 INFO L138 Inliner]: procedures = 26, calls = 92, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 737 [2024-11-19 00:03:22,184 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:03:22,185 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:03:22,185 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:03:22,185 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:03:22,198 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:03:22" (1/1) ... [2024-11-19 00:03:22,198 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:03:22" (1/1) ... [2024-11-19 00:03:22,216 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:03:22" (1/1) ... [2024-11-19 00:03:22,273 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]. [2024-11-19 00:03:22,273 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:03:22" (1/1) ... [2024-11-19 00:03:22,273 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:03:22" (1/1) ... [2024-11-19 00:03:22,318 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:03:22" (1/1) ... [2024-11-19 00:03:22,329 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:03:22" (1/1) ... [2024-11-19 00:03:22,356 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:03:22" (1/1) ... [2024-11-19 00:03:22,364 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:03:22" (1/1) ... [2024-11-19 00:03:22,386 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:03:22,389 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:03:22,389 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:03:22,389 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:03:22,390 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:03:22" (1/1) ... [2024-11-19 00:03:22,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:03:22,410 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:03:22,428 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) [2024-11-19 00:03:22,431 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 [2024-11-19 00:03:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:03:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:03:22,471 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:03:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:03:22,471 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:03:22,472 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:03:22,597 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:03:22,599 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:03:24,107 INFO L? ?]: Removed 90 outVars from TransFormulas that were not future-live. [2024-11-19 00:03:24,107 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:03:24,141 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:03:24,141 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:03:24,141 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:03:24 BoogieIcfgContainer [2024-11-19 00:03:24,141 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:03:24,147 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:03:24,147 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:03:24,151 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:03:24,152 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:03:21" (1/3) ... [2024-11-19 00:03:24,153 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac9f48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:03:24, skipping insertion in model container [2024-11-19 00:03:24,153 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:03:22" (2/3) ... [2024-11-19 00:03:24,154 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ac9f48f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:03:24, skipping insertion in model container [2024-11-19 00:03:24,154 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:03:24" (3/3) ... [2024-11-19 00:03:24,155 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount500_file-37.i [2024-11-19 00:03:24,173 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:03:24,174 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:03:24,268 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:03:24,277 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;@4b35f23f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:03:24,278 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:03:24,286 INFO L276 IsEmpty]: Start isEmpty. Operand has 308 states, 226 states have (on average 1.5221238938053097) internal successors, (344), 227 states have internal predecessors, (344), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-19 00:03:24,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2024-11-19 00:03:24,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:03:24,321 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:03:24,322 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:03:24,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:03:24,330 INFO L85 PathProgramCache]: Analyzing trace with hash -433744812, now seen corresponding path program 1 times [2024-11-19 00:03:24,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:03:24,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864336861] [2024-11-19 00:03:24,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:03:24,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:03:24,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:03:25,070 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 12168 trivial. 0 not checked. [2024-11-19 00:03:25,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:03:25,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864336861] [2024-11-19 00:03:25,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864336861] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:03:25,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71072913] [2024-11-19 00:03:25,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:03:25,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:03:25,073 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:03:25,075 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) [2024-11-19 00:03:25,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 00:03:25,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:03:25,464 INFO L255 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 00:03:25,488 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:03:25,571 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 12168 trivial. 0 not checked. [2024-11-19 00:03:25,571 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:03:25,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71072913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:03:25,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:03:25,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 00:03:25,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692471674] [2024-11-19 00:03:25,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:03:25,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 00:03:25,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:03:25,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 00:03:25,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:03:25,616 INFO L87 Difference]: Start difference. First operand has 308 states, 226 states have (on average 1.5221238938053097) internal successors, (344), 227 states have internal predecessors, (344), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) Second operand has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 2 states have call successors, (79) [2024-11-19 00:03:25,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:03:25,676 INFO L93 Difference]: Finished difference Result 609 states and 1077 transitions. [2024-11-19 00:03:25,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 00:03:25,680 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 2 states have call successors, (79) Word has length 528 [2024-11-19 00:03:25,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:03:25,693 INFO L225 Difference]: With dead ends: 609 [2024-11-19 00:03:25,693 INFO L226 Difference]: Without dead ends: 304 [2024-11-19 00:03:25,702 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 529 GetRequests, 529 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:03:25,708 INFO L432 NwaCegarLoop]: 495 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:03:25,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:03:25,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-19 00:03:25,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2024-11-19 00:03:25,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 223 states have (on average 1.5112107623318385) internal successors, (337), 223 states have internal predecessors, (337), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-19 00:03:25,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 495 transitions. [2024-11-19 00:03:25,810 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 495 transitions. Word has length 528 [2024-11-19 00:03:25,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:03:25,811 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 495 transitions. [2024-11-19 00:03:25,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 69.0) internal successors, (138), 2 states have internal predecessors, (138), 2 states have call successors, (79), 2 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 2 states have call successors, (79) [2024-11-19 00:03:25,811 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 495 transitions. [2024-11-19 00:03:25,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2024-11-19 00:03:25,830 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:03:25,831 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:03:25,875 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 00:03:26,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 00:03:26,036 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:03:26,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:03:26,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1896886094, now seen corresponding path program 1 times [2024-11-19 00:03:26,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:03:26,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503209560] [2024-11-19 00:03:26,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:03:26,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:03:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:03:26,590 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-19 00:03:26,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:03:26,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503209560] [2024-11-19 00:03:26,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503209560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:03:26,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:03:26,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:03:26,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447122496] [2024-11-19 00:03:26,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:03:26,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:03:26,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:03:26,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:03:26,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:03:26,603 INFO L87 Difference]: Start difference. First operand 304 states and 495 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:26,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:03:26,784 INFO L93 Difference]: Finished difference Result 894 states and 1456 transitions. [2024-11-19 00:03:26,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:03:26,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 528 [2024-11-19 00:03:26,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:03:26,794 INFO L225 Difference]: With dead ends: 894 [2024-11-19 00:03:26,796 INFO L226 Difference]: Without dead ends: 593 [2024-11-19 00:03:26,798 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:03:26,800 INFO L432 NwaCegarLoop]: 731 mSDtfsCounter, 460 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1198 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:03:26,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 1198 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:03:26,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2024-11-19 00:03:26,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 389. [2024-11-19 00:03:26,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 308 states have (on average 1.5649350649350648) internal successors, (482), 308 states have internal predecessors, (482), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-19 00:03:26,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 640 transitions. [2024-11-19 00:03:26,871 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 640 transitions. Word has length 528 [2024-11-19 00:03:26,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:03:26,874 INFO L471 AbstractCegarLoop]: Abstraction has 389 states and 640 transitions. [2024-11-19 00:03:26,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:26,875 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 640 transitions. [2024-11-19 00:03:26,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2024-11-19 00:03:26,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:03:26,881 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:03:26,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 00:03:26,882 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:03:26,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:03:26,883 INFO L85 PathProgramCache]: Analyzing trace with hash 330047909, now seen corresponding path program 1 times [2024-11-19 00:03:26,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:03:26,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94746568] [2024-11-19 00:03:26,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:03:26,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:03:27,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:03:27,325 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-19 00:03:27,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:03:27,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94746568] [2024-11-19 00:03:27,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94746568] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:03:27,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:03:27,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:03:27,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913501866] [2024-11-19 00:03:27,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:03:27,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:03:27,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:03:27,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:03:27,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:03:27,330 INFO L87 Difference]: Start difference. First operand 389 states and 640 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:27,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:03:27,424 INFO L93 Difference]: Finished difference Result 1133 states and 1863 transitions. [2024-11-19 00:03:27,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:03:27,427 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 529 [2024-11-19 00:03:27,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:03:27,438 INFO L225 Difference]: With dead ends: 1133 [2024-11-19 00:03:27,438 INFO L226 Difference]: Without dead ends: 747 [2024-11-19 00:03:27,440 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:03:27,442 INFO L432 NwaCegarLoop]: 533 mSDtfsCounter, 460 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 460 SdHoareTripleChecker+Valid, 1000 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:03:27,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [460 Valid, 1000 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:03:27,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 747 states. [2024-11-19 00:03:27,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 747 to 529. [2024-11-19 00:03:27,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 448 states have (on average 1.5959821428571428) internal successors, (715), 448 states have internal predecessors, (715), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-19 00:03:27,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 873 transitions. [2024-11-19 00:03:27,517 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 873 transitions. Word has length 529 [2024-11-19 00:03:27,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:03:27,522 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 873 transitions. [2024-11-19 00:03:27,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:27,523 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 873 transitions. [2024-11-19 00:03:27,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-11-19 00:03:27,529 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:03:27,529 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:03:27,530 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 00:03:27,530 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:03:27,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:03:27,531 INFO L85 PathProgramCache]: Analyzing trace with hash -295623210, now seen corresponding path program 1 times [2024-11-19 00:03:27,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:03:27,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881997845] [2024-11-19 00:03:27,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:03:27,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:03:27,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:03:27,919 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-19 00:03:27,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:03:27,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881997845] [2024-11-19 00:03:27,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881997845] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:03:27,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:03:27,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:03:27,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154769040] [2024-11-19 00:03:27,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:03:27,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:03:27,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:03:27,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:03:27,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:03:27,926 INFO L87 Difference]: Start difference. First operand 529 states and 873 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:28,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:03:28,070 INFO L93 Difference]: Finished difference Result 1574 states and 2599 transitions. [2024-11-19 00:03:28,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:03:28,072 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 530 [2024-11-19 00:03:28,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:03:28,083 INFO L225 Difference]: With dead ends: 1574 [2024-11-19 00:03:28,083 INFO L226 Difference]: Without dead ends: 1048 [2024-11-19 00:03:28,086 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:03:28,087 INFO L432 NwaCegarLoop]: 844 mSDtfsCounter, 431 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1300 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:03:28,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 1300 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 00:03:28,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2024-11-19 00:03:28,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 859. [2024-11-19 00:03:28,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 778 states have (on average 1.6272493573264781) internal successors, (1266), 778 states have internal predecessors, (1266), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-19 00:03:28,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1424 transitions. [2024-11-19 00:03:28,138 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1424 transitions. Word has length 530 [2024-11-19 00:03:28,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:03:28,139 INFO L471 AbstractCegarLoop]: Abstraction has 859 states and 1424 transitions. [2024-11-19 00:03:28,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:28,140 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1424 transitions. [2024-11-19 00:03:28,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-11-19 00:03:28,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:03:28,147 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:03:28,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 00:03:28,147 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:03:28,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:03:28,149 INFO L85 PathProgramCache]: Analyzing trace with hash 166589268, now seen corresponding path program 1 times [2024-11-19 00:03:28,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:03:28,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275107138] [2024-11-19 00:03:28,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:03:28,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:03:28,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:03:28,532 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-19 00:03:28,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:03:28,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275107138] [2024-11-19 00:03:28,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275107138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:03:28,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:03:28,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:03:28,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484942356] [2024-11-19 00:03:28,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:03:28,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:03:28,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:03:28,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:03:28,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:03:28,536 INFO L87 Difference]: Start difference. First operand 859 states and 1424 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:28,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:03:28,625 INFO L93 Difference]: Finished difference Result 2003 states and 3297 transitions. [2024-11-19 00:03:28,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:03:28,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 530 [2024-11-19 00:03:28,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:03:28,634 INFO L225 Difference]: With dead ends: 2003 [2024-11-19 00:03:28,634 INFO L226 Difference]: Without dead ends: 1147 [2024-11-19 00:03:28,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:03:28,637 INFO L432 NwaCegarLoop]: 893 mSDtfsCounter, 463 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 463 SdHoareTripleChecker+Valid, 1349 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:03:28,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [463 Valid, 1349 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:03:28,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2024-11-19 00:03:28,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 859. [2024-11-19 00:03:28,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 778 states have (on average 1.6105398457583548) internal successors, (1253), 778 states have internal predecessors, (1253), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-19 00:03:28,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1411 transitions. [2024-11-19 00:03:28,680 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1411 transitions. Word has length 530 [2024-11-19 00:03:28,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:03:28,682 INFO L471 AbstractCegarLoop]: Abstraction has 859 states and 1411 transitions. [2024-11-19 00:03:28,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:28,682 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1411 transitions. [2024-11-19 00:03:28,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-11-19 00:03:28,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:03:28,688 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:03:28,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 00:03:28,689 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:03:28,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:03:28,690 INFO L85 PathProgramCache]: Analyzing trace with hash -1060816308, now seen corresponding path program 1 times [2024-11-19 00:03:28,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:03:28,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521230304] [2024-11-19 00:03:28,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:03:28,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:03:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:03:29,150 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-19 00:03:29,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:03:29,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521230304] [2024-11-19 00:03:29,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521230304] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:03:29,151 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:03:29,151 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 00:03:29,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954377551] [2024-11-19 00:03:29,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:03:29,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 00:03:29,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:03:29,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 00:03:29,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:03:29,154 INFO L87 Difference]: Start difference. First operand 859 states and 1411 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:29,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:03:29,203 INFO L93 Difference]: Finished difference Result 1715 states and 2819 transitions. [2024-11-19 00:03:29,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 00:03:29,205 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 530 [2024-11-19 00:03:29,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:03:29,210 INFO L225 Difference]: With dead ends: 1715 [2024-11-19 00:03:29,210 INFO L226 Difference]: Without dead ends: 859 [2024-11-19 00:03:29,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 00:03:29,214 INFO L432 NwaCegarLoop]: 493 mSDtfsCounter, 0 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 977 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:03:29,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 977 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:03:29,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2024-11-19 00:03:29,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 859. [2024-11-19 00:03:29,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 778 states have (on average 1.6053984575835476) internal successors, (1249), 778 states have internal predecessors, (1249), 79 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 79 states have call predecessors, (79), 79 states have call successors, (79) [2024-11-19 00:03:29,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 1407 transitions. [2024-11-19 00:03:29,245 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 1407 transitions. Word has length 530 [2024-11-19 00:03:29,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:03:29,248 INFO L471 AbstractCegarLoop]: Abstraction has 859 states and 1407 transitions. [2024-11-19 00:03:29,249 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:29,249 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 1407 transitions. [2024-11-19 00:03:29,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-11-19 00:03:29,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:03:29,254 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:03:29,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 00:03:29,254 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:03:29,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:03:29,255 INFO L85 PathProgramCache]: Analyzing trace with hash -1767927047, now seen corresponding path program 1 times [2024-11-19 00:03:29,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:03:29,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59153235] [2024-11-19 00:03:29,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:03:29,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:03:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:03:30,219 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-19 00:03:30,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:03:30,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59153235] [2024-11-19 00:03:30,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59153235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:03:30,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:03:30,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:03:30,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793453938] [2024-11-19 00:03:30,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:03:30,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:03:30,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:03:30,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:03:30,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:03:30,224 INFO L87 Difference]: Start difference. First operand 859 states and 1407 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:30,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:03:30,619 INFO L93 Difference]: Finished difference Result 2572 states and 4216 transitions. [2024-11-19 00:03:30,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:03:30,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 531 [2024-11-19 00:03:30,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:03:30,629 INFO L225 Difference]: With dead ends: 2572 [2024-11-19 00:03:30,630 INFO L226 Difference]: Without dead ends: 1716 [2024-11-19 00:03:30,635 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:03:30,636 INFO L432 NwaCegarLoop]: 491 mSDtfsCounter, 421 mSDsluCounter, 959 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 239 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 239 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:03:30,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 1450 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [239 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:03:30,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2024-11-19 00:03:30,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1686. [2024-11-19 00:03:30,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1686 states, 1525 states have (on average 1.6098360655737705) internal successors, (2455), 1525 states have internal predecessors, (2455), 158 states have call successors, (158), 2 states have call predecessors, (158), 2 states have return successors, (158), 158 states have call predecessors, (158), 158 states have call successors, (158) [2024-11-19 00:03:30,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 2771 transitions. [2024-11-19 00:03:30,702 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 2771 transitions. Word has length 531 [2024-11-19 00:03:30,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:03:30,704 INFO L471 AbstractCegarLoop]: Abstraction has 1686 states and 2771 transitions. [2024-11-19 00:03:30,705 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:30,705 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 2771 transitions. [2024-11-19 00:03:30,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2024-11-19 00:03:30,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:03:30,710 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:03:30,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 00:03:30,710 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:03:30,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:03:30,711 INFO L85 PathProgramCache]: Analyzing trace with hash -1990505276, now seen corresponding path program 1 times [2024-11-19 00:03:30,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:03:30,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284823202] [2024-11-19 00:03:30,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:03:30,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:03:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:03:33,515 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-19 00:03:33,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:03:33,516 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284823202] [2024-11-19 00:03:33,516 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284823202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:03:33,516 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:03:33,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:03:33,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413706164] [2024-11-19 00:03:33,517 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:03:33,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:03:33,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:03:33,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:03:33,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:03:33,519 INFO L87 Difference]: Start difference. First operand 1686 states and 2771 transitions. Second operand has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:34,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:03:34,499 INFO L93 Difference]: Finished difference Result 4150 states and 6834 transitions. [2024-11-19 00:03:34,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:03:34,501 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 532 [2024-11-19 00:03:34,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:03:34,514 INFO L225 Difference]: With dead ends: 4150 [2024-11-19 00:03:34,514 INFO L226 Difference]: Without dead ends: 2960 [2024-11-19 00:03:34,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:03:34,519 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 882 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 00:03:34,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 1484 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 00:03:34,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2960 states. [2024-11-19 00:03:34,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2960 to 2901. [2024-11-19 00:03:34,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2901 states, 2735 states have (on average 1.6321755027422304) internal successors, (4464), 2736 states have internal predecessors, (4464), 160 states have call successors, (160), 5 states have call predecessors, (160), 5 states have return successors, (160), 159 states have call predecessors, (160), 160 states have call successors, (160) [2024-11-19 00:03:34,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2901 states to 2901 states and 4784 transitions. [2024-11-19 00:03:34,622 INFO L78 Accepts]: Start accepts. Automaton has 2901 states and 4784 transitions. Word has length 532 [2024-11-19 00:03:34,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:03:34,623 INFO L471 AbstractCegarLoop]: Abstraction has 2901 states and 4784 transitions. [2024-11-19 00:03:34,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.333333333333332) internal successors, (140), 6 states have internal predecessors, (140), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:34,624 INFO L276 IsEmpty]: Start isEmpty. Operand 2901 states and 4784 transitions. [2024-11-19 00:03:34,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2024-11-19 00:03:34,630 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:03:34,630 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:03:34,630 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 00:03:34,631 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:03:34,631 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:03:34,631 INFO L85 PathProgramCache]: Analyzing trace with hash 1951373638, now seen corresponding path program 1 times [2024-11-19 00:03:34,631 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:03:34,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887171454] [2024-11-19 00:03:34,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:03:34,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:03:34,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:03:36,034 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-19 00:03:36,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:03:36,035 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887171454] [2024-11-19 00:03:36,035 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887171454] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:03:36,035 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:03:36,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:03:36,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647096506] [2024-11-19 00:03:36,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:03:36,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:03:36,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:03:36,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:03:36,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:03:36,038 INFO L87 Difference]: Start difference. First operand 2901 states and 4784 transitions. Second operand has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:36,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:03:36,588 INFO L93 Difference]: Finished difference Result 6580 states and 10806 transitions. [2024-11-19 00:03:36,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:03:36,589 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 532 [2024-11-19 00:03:36,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:03:36,607 INFO L225 Difference]: With dead ends: 6580 [2024-11-19 00:03:36,607 INFO L226 Difference]: Without dead ends: 3830 [2024-11-19 00:03:36,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:03:36,615 INFO L432 NwaCegarLoop]: 838 mSDtfsCounter, 983 mSDsluCounter, 1988 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 983 SdHoareTripleChecker+Valid, 2826 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:03:36,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [983 Valid, 2826 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:03:36,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3830 states. [2024-11-19 00:03:36,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3830 to 2902. [2024-11-19 00:03:36,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2902 states, 2736 states have (on average 1.6319444444444444) internal successors, (4465), 2737 states have internal predecessors, (4465), 160 states have call successors, (160), 5 states have call predecessors, (160), 5 states have return successors, (160), 159 states have call predecessors, (160), 160 states have call successors, (160) [2024-11-19 00:03:36,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2902 states to 2902 states and 4785 transitions. [2024-11-19 00:03:36,752 INFO L78 Accepts]: Start accepts. Automaton has 2902 states and 4785 transitions. Word has length 532 [2024-11-19 00:03:36,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:03:36,753 INFO L471 AbstractCegarLoop]: Abstraction has 2902 states and 4785 transitions. [2024-11-19 00:03:36,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.0) internal successors, (140), 5 states have internal predecessors, (140), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:36,753 INFO L276 IsEmpty]: Start isEmpty. Operand 2902 states and 4785 transitions. [2024-11-19 00:03:36,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-11-19 00:03:36,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:03:36,759 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:03:36,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 00:03:36,760 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:03:36,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:03:36,761 INFO L85 PathProgramCache]: Analyzing trace with hash 1060402920, now seen corresponding path program 1 times [2024-11-19 00:03:36,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:03:36,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878257979] [2024-11-19 00:03:36,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:03:36,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:03:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:03:38,257 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-19 00:03:38,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:03:38,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878257979] [2024-11-19 00:03:38,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878257979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:03:38,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:03:38,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:03:38,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186585500] [2024-11-19 00:03:38,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:03:38,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:03:38,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:03:38,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:03:38,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:03:38,261 INFO L87 Difference]: Start difference. First operand 2902 states and 4785 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:39,096 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:03:39,097 INFO L93 Difference]: Finished difference Result 6285 states and 10367 transitions. [2024-11-19 00:03:39,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:03:39,098 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 533 [2024-11-19 00:03:39,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:03:39,113 INFO L225 Difference]: With dead ends: 6285 [2024-11-19 00:03:39,113 INFO L226 Difference]: Without dead ends: 3531 [2024-11-19 00:03:39,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:03:39,120 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 842 mSDsluCounter, 1574 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 2054 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:03:39,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 2054 Invalid, 648 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 00:03:39,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3531 states. [2024-11-19 00:03:39,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3531 to 2906. [2024-11-19 00:03:39,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2906 states, 2740 states have (on average 1.6313868613138687) internal successors, (4470), 2741 states have internal predecessors, (4470), 160 states have call successors, (160), 5 states have call predecessors, (160), 5 states have return successors, (160), 159 states have call predecessors, (160), 160 states have call successors, (160) [2024-11-19 00:03:39,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2906 states to 2906 states and 4790 transitions. [2024-11-19 00:03:39,247 INFO L78 Accepts]: Start accepts. Automaton has 2906 states and 4790 transitions. Word has length 533 [2024-11-19 00:03:39,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:03:39,248 INFO L471 AbstractCegarLoop]: Abstraction has 2906 states and 4790 transitions. [2024-11-19 00:03:39,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:39,248 INFO L276 IsEmpty]: Start isEmpty. Operand 2906 states and 4790 transitions. [2024-11-19 00:03:39,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-11-19 00:03:39,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:03:39,254 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:03:39,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 00:03:39,254 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:03:39,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:03:39,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1035057297, now seen corresponding path program 1 times [2024-11-19 00:03:39,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:03:39,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797578048] [2024-11-19 00:03:39,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:03:39,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:03:39,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:03:40,566 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-19 00:03:40,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:03:40,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797578048] [2024-11-19 00:03:40,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797578048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:03:40,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:03:40,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:03:40,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747310119] [2024-11-19 00:03:40,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:03:40,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:03:40,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:03:40,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:03:40,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:03:40,574 INFO L87 Difference]: Start difference. First operand 2906 states and 4790 transitions. Second operand has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:41,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:03:41,047 INFO L93 Difference]: Finished difference Result 7711 states and 12669 transitions. [2024-11-19 00:03:41,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:03:41,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 533 [2024-11-19 00:03:41,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:03:41,073 INFO L225 Difference]: With dead ends: 7711 [2024-11-19 00:03:41,074 INFO L226 Difference]: Without dead ends: 5416 [2024-11-19 00:03:41,081 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:03:41,082 INFO L432 NwaCegarLoop]: 751 mSDtfsCounter, 590 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 590 SdHoareTripleChecker+Valid, 1817 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:03:41,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [590 Valid, 1817 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:03:41,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5416 states. [2024-11-19 00:03:41,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5416 to 4876. [2024-11-19 00:03:41,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4876 states, 4656 states have (on average 1.6327319587628866) internal successors, (7602), 4659 states have internal predecessors, (7602), 211 states have call successors, (211), 8 states have call predecessors, (211), 8 states have return successors, (211), 208 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-19 00:03:41,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4876 states to 4876 states and 8024 transitions. [2024-11-19 00:03:41,342 INFO L78 Accepts]: Start accepts. Automaton has 4876 states and 8024 transitions. Word has length 533 [2024-11-19 00:03:41,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:03:41,343 INFO L471 AbstractCegarLoop]: Abstraction has 4876 states and 8024 transitions. [2024-11-19 00:03:41,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.25) internal successors, (141), 4 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:41,343 INFO L276 IsEmpty]: Start isEmpty. Operand 4876 states and 8024 transitions. [2024-11-19 00:03:41,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-11-19 00:03:41,361 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:03:41,362 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:03:41,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 00:03:41,362 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:03:41,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:03:41,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1752826471, now seen corresponding path program 1 times [2024-11-19 00:03:41,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:03:41,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452216007] [2024-11-19 00:03:41,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:03:41,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:03:41,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:03:41,833 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-19 00:03:41,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:03:41,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452216007] [2024-11-19 00:03:41,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [452216007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:03:41,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:03:41,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:03:41,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496740536] [2024-11-19 00:03:41,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:03:41,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:03:41,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:03:41,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:03:41,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:03:41,840 INFO L87 Difference]: Start difference. First operand 4876 states and 8024 transitions. Second operand has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:42,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:03:42,646 INFO L93 Difference]: Finished difference Result 10311 states and 16972 transitions. [2024-11-19 00:03:42,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 00:03:42,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 533 [2024-11-19 00:03:42,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:03:42,678 INFO L225 Difference]: With dead ends: 10311 [2024-11-19 00:03:42,681 INFO L226 Difference]: Without dead ends: 5678 [2024-11-19 00:03:42,691 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-19 00:03:42,692 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 1145 mSDsluCounter, 1748 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1145 SdHoareTripleChecker+Valid, 2228 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:03:42,692 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1145 Valid, 2228 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 00:03:42,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5678 states. [2024-11-19 00:03:42,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5678 to 4876. [2024-11-19 00:03:42,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4876 states, 4656 states have (on average 1.631872852233677) internal successors, (7598), 4659 states have internal predecessors, (7598), 211 states have call successors, (211), 8 states have call predecessors, (211), 8 states have return successors, (211), 208 states have call predecessors, (211), 211 states have call successors, (211) [2024-11-19 00:03:42,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4876 states to 4876 states and 8020 transitions. [2024-11-19 00:03:42,886 INFO L78 Accepts]: Start accepts. Automaton has 4876 states and 8020 transitions. Word has length 533 [2024-11-19 00:03:42,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:03:42,887 INFO L471 AbstractCegarLoop]: Abstraction has 4876 states and 8020 transitions. [2024-11-19 00:03:42,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.5) internal successors, (141), 6 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:42,888 INFO L276 IsEmpty]: Start isEmpty. Operand 4876 states and 8020 transitions. [2024-11-19 00:03:42,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-11-19 00:03:42,896 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:03:42,897 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:03:42,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 00:03:42,897 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:03:42,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:03:42,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1862868571, now seen corresponding path program 1 times [2024-11-19 00:03:42,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:03:42,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966776138] [2024-11-19 00:03:42,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:03:42,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:03:43,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:03:44,026 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-19 00:03:44,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:03:44,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966776138] [2024-11-19 00:03:44,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [966776138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:03:44,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:03:44,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:03:44,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967062111] [2024-11-19 00:03:44,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:03:44,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:03:44,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:03:44,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:03:44,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:03:44,029 INFO L87 Difference]: Start difference. First operand 4876 states and 8020 transitions. Second operand has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:44,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:03:44,666 INFO L93 Difference]: Finished difference Result 16428 states and 26738 transitions. [2024-11-19 00:03:44,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 00:03:44,667 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 533 [2024-11-19 00:03:44,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:03:44,704 INFO L225 Difference]: With dead ends: 16428 [2024-11-19 00:03:44,705 INFO L226 Difference]: Without dead ends: 11761 [2024-11-19 00:03:44,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-19 00:03:44,720 INFO L432 NwaCegarLoop]: 932 mSDtfsCounter, 1259 mSDsluCounter, 2302 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1259 SdHoareTripleChecker+Valid, 3234 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:03:44,721 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1259 Valid, 3234 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:03:44,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11761 states. [2024-11-19 00:03:45,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11761 to 9494. [2024-11-19 00:03:45,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9494 states, 9162 states have (on average 1.6278105217201484) internal successors, (14914), 9169 states have internal predecessors, (14914), 317 states have call successors, (317), 14 states have call predecessors, (317), 14 states have return successors, (317), 310 states have call predecessors, (317), 317 states have call successors, (317) [2024-11-19 00:03:45,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9494 states to 9494 states and 15548 transitions. [2024-11-19 00:03:45,080 INFO L78 Accepts]: Start accepts. Automaton has 9494 states and 15548 transitions. Word has length 533 [2024-11-19 00:03:45,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:03:45,081 INFO L471 AbstractCegarLoop]: Abstraction has 9494 states and 15548 transitions. [2024-11-19 00:03:45,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.2) internal successors, (141), 5 states have internal predecessors, (141), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:45,081 INFO L276 IsEmpty]: Start isEmpty. Operand 9494 states and 15548 transitions. [2024-11-19 00:03:45,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2024-11-19 00:03:45,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:03:45,093 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:03:45,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 00:03:45,094 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:03:45,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:03:45,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1259343197, now seen corresponding path program 1 times [2024-11-19 00:03:45,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:03:45,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583763223] [2024-11-19 00:03:45,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:03:45,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:03:46,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:03:47,153 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 120 proven. 114 refuted. 0 times theorem prover too weak. 12090 trivial. 0 not checked. [2024-11-19 00:03:47,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:03:47,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583763223] [2024-11-19 00:03:47,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583763223] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:03:47,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095889889] [2024-11-19 00:03:47,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:03:47,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:03:47,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:03:47,157 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) [2024-11-19 00:03:47,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 00:03:47,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:03:47,613 INFO L255 TraceCheckSpWp]: Trace formula consists of 1242 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-19 00:03:47,630 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:03:49,224 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 1356 proven. 444 refuted. 0 times theorem prover too weak. 10524 trivial. 0 not checked. [2024-11-19 00:03:49,224 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:03:49,867 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 18 proven. 447 refuted. 0 times theorem prover too weak. 11859 trivial. 0 not checked. [2024-11-19 00:03:49,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095889889] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:03:49,867 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:03:49,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 16 [2024-11-19 00:03:49,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269276376] [2024-11-19 00:03:49,868 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:03:49,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 00:03:49,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:03:49,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 00:03:49,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-19 00:03:49,874 INFO L87 Difference]: Start difference. First operand 9494 states and 15548 transitions. Second operand has 16 states, 16 states have (on average 20.375) internal successors, (326), 16 states have internal predecessors, (326), 6 states have call successors, (234), 3 states have call predecessors, (234), 7 states have return successors, (235), 6 states have call predecessors, (235), 6 states have call successors, (235) [2024-11-19 00:03:51,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:03:51,769 INFO L93 Difference]: Finished difference Result 13971 states and 22740 transitions. [2024-11-19 00:03:51,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-19 00:03:51,770 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 20.375) internal successors, (326), 16 states have internal predecessors, (326), 6 states have call successors, (234), 3 states have call predecessors, (234), 7 states have return successors, (235), 6 states have call predecessors, (235), 6 states have call successors, (235) Word has length 533 [2024-11-19 00:03:51,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:03:51,785 INFO L225 Difference]: With dead ends: 13971 [2024-11-19 00:03:51,785 INFO L226 Difference]: Without dead ends: 5489 [2024-11-19 00:03:51,796 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1099 GetRequests, 1061 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 328 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=432, Invalid=1050, Unknown=0, NotChecked=0, Total=1482 [2024-11-19 00:03:51,797 INFO L432 NwaCegarLoop]: 351 mSDtfsCounter, 2145 mSDsluCounter, 2059 mSDsCounter, 0 mSdLazyCounter, 1526 mSolverCounterSat, 375 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2148 SdHoareTripleChecker+Valid, 2410 SdHoareTripleChecker+Invalid, 1901 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 375 IncrementalHoareTripleChecker+Valid, 1526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:03:51,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2148 Valid, 2410 Invalid, 1901 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [375 Valid, 1526 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-19 00:03:51,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5489 states. [2024-11-19 00:03:51,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5489 to 5353. [2024-11-19 00:03:51,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5353 states, 5022 states have (on average 1.5937873357228196) internal successors, (8004), 5025 states have internal predecessors, (8004), 309 states have call successors, (309), 21 states have call predecessors, (309), 21 states have return successors, (309), 306 states have call predecessors, (309), 309 states have call successors, (309) [2024-11-19 00:03:52,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5353 states to 5353 states and 8622 transitions. [2024-11-19 00:03:52,004 INFO L78 Accepts]: Start accepts. Automaton has 5353 states and 8622 transitions. Word has length 533 [2024-11-19 00:03:52,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:03:52,005 INFO L471 AbstractCegarLoop]: Abstraction has 5353 states and 8622 transitions. [2024-11-19 00:03:52,005 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 20.375) internal successors, (326), 16 states have internal predecessors, (326), 6 states have call successors, (234), 3 states have call predecessors, (234), 7 states have return successors, (235), 6 states have call predecessors, (235), 6 states have call successors, (235) [2024-11-19 00:03:52,005 INFO L276 IsEmpty]: Start isEmpty. Operand 5353 states and 8622 transitions. [2024-11-19 00:03:52,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2024-11-19 00:03:52,013 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:03:52,013 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:03:52,035 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 00:03:52,217 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,SelfDestructingSolverStorable13 [2024-11-19 00:03:52,219 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:03:52,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:03:52,219 INFO L85 PathProgramCache]: Analyzing trace with hash -936118493, now seen corresponding path program 1 times [2024-11-19 00:03:52,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:03:52,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237479915] [2024-11-19 00:03:52,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:03:52,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:03:52,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:03:52,987 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-19 00:03:52,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:03:52,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237479915] [2024-11-19 00:03:52,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237479915] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:03:52,988 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:03:52,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:03:52,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [918173626] [2024-11-19 00:03:52,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:03:52,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:03:52,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:03:52,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:03:52,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:03:52,990 INFO L87 Difference]: Start difference. First operand 5353 states and 8622 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:53,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:03:53,703 INFO L93 Difference]: Finished difference Result 12929 states and 20755 transitions. [2024-11-19 00:03:53,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:03:53,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 535 [2024-11-19 00:03:53,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:03:53,727 INFO L225 Difference]: With dead ends: 12929 [2024-11-19 00:03:53,727 INFO L226 Difference]: Without dead ends: 8279 [2024-11-19 00:03:53,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:03:53,739 INFO L432 NwaCegarLoop]: 819 mSDtfsCounter, 781 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 1875 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:03:53,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 1875 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:03:53,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8279 states. [2024-11-19 00:03:53,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8279 to 5813. [2024-11-19 00:03:53,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5813 states, 5481 states have (on average 1.5845648604269293) internal successors, (8685), 5484 states have internal predecessors, (8685), 309 states have call successors, (309), 22 states have call predecessors, (309), 22 states have return successors, (309), 306 states have call predecessors, (309), 309 states have call successors, (309) [2024-11-19 00:03:53,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5813 states to 5813 states and 9303 transitions. [2024-11-19 00:03:53,978 INFO L78 Accepts]: Start accepts. Automaton has 5813 states and 9303 transitions. Word has length 535 [2024-11-19 00:03:53,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:03:53,979 INFO L471 AbstractCegarLoop]: Abstraction has 5813 states and 9303 transitions. [2024-11-19 00:03:53,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:03:53,979 INFO L276 IsEmpty]: Start isEmpty. Operand 5813 states and 9303 transitions. [2024-11-19 00:03:53,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2024-11-19 00:03:53,987 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:03:53,987 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:03:53,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 00:03:53,988 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:03:53,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:03:53,988 INFO L85 PathProgramCache]: Analyzing trace with hash 630639457, now seen corresponding path program 1 times [2024-11-19 00:03:53,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:03:53,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846021137] [2024-11-19 00:03:53,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:03:53,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:03:55,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:03:55,990 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 108 proven. 126 refuted. 0 times theorem prover too weak. 12090 trivial. 0 not checked. [2024-11-19 00:03:55,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:03:55,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846021137] [2024-11-19 00:03:55,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846021137] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:03:55,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1384611640] [2024-11-19 00:03:55,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:03:55,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:03:55,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:03:55,993 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) [2024-11-19 00:03:55,994 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 00:03:56,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:03:56,545 INFO L255 TraceCheckSpWp]: Trace formula consists of 1246 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 00:03:56,561 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:03:56,892 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 5484 proven. 75 refuted. 0 times theorem prover too weak. 6765 trivial. 0 not checked. [2024-11-19 00:03:56,893 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:03:57,336 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 159 proven. 75 refuted. 0 times theorem prover too weak. 12090 trivial. 0 not checked. [2024-11-19 00:03:57,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1384611640] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:03:57,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:03:57,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-19 00:03:57,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329483975] [2024-11-19 00:03:57,338 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:03:57,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:03:57,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:03:57,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:03:57,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:03:57,341 INFO L87 Difference]: Start difference. First operand 5813 states and 9303 transitions. Second operand has 8 states, 8 states have (on average 29.25) internal successors, (234), 8 states have internal predecessors, (234), 3 states have call successors, (146), 2 states have call predecessors, (146), 4 states have return successors, (148), 3 states have call predecessors, (148), 3 states have call successors, (148) [2024-11-19 00:03:58,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:03:58,338 INFO L93 Difference]: Finished difference Result 8950 states and 14334 transitions. [2024-11-19 00:03:58,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:03:58,339 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 29.25) internal successors, (234), 8 states have internal predecessors, (234), 3 states have call successors, (146), 2 states have call predecessors, (146), 4 states have return successors, (148), 3 states have call predecessors, (148), 3 states have call successors, (148) Word has length 535 [2024-11-19 00:03:58,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:03:58,356 INFO L225 Difference]: With dead ends: 8950 [2024-11-19 00:03:58,356 INFO L226 Difference]: Without dead ends: 4313 [2024-11-19 00:03:58,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1082 GetRequests, 1067 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2024-11-19 00:03:58,367 INFO L432 NwaCegarLoop]: 373 mSDtfsCounter, 850 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 833 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:03:58,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 962 Invalid, 833 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:03:58,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4313 states. [2024-11-19 00:03:58,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4313 to 3619. [2024-11-19 00:03:58,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3619 states, 3280 states have (on average 1.5304878048780488) internal successors, (5020), 3283 states have internal predecessors, (5020), 309 states have call successors, (309), 29 states have call predecessors, (309), 29 states have return successors, (309), 306 states have call predecessors, (309), 309 states have call successors, (309) [2024-11-19 00:03:58,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3619 states to 3619 states and 5638 transitions. [2024-11-19 00:03:58,630 INFO L78 Accepts]: Start accepts. Automaton has 3619 states and 5638 transitions. Word has length 535 [2024-11-19 00:03:58,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:03:58,631 INFO L471 AbstractCegarLoop]: Abstraction has 3619 states and 5638 transitions. [2024-11-19 00:03:58,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 29.25) internal successors, (234), 8 states have internal predecessors, (234), 3 states have call successors, (146), 2 states have call predecessors, (146), 4 states have return successors, (148), 3 states have call predecessors, (148), 3 states have call successors, (148) [2024-11-19 00:03:58,631 INFO L276 IsEmpty]: Start isEmpty. Operand 3619 states and 5638 transitions. [2024-11-19 00:03:58,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2024-11-19 00:03:58,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:03:58,638 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:03:58,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-19 00:03:58,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:03:58,843 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:03:58,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:03:58,844 INFO L85 PathProgramCache]: Analyzing trace with hash -2078651898, now seen corresponding path program 1 times [2024-11-19 00:03:58,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:03:58,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762602935] [2024-11-19 00:03:58,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:03:58,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:03:58,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:03:59,648 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-19 00:03:59,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:03:59,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762602935] [2024-11-19 00:03:59,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762602935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:03:59,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:03:59,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:03:59,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017909382] [2024-11-19 00:03:59,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:03:59,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:03:59,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:03:59,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:03:59,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:03:59,652 INFO L87 Difference]: Start difference. First operand 3619 states and 5638 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:04:00,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:04:00,459 INFO L93 Difference]: Finished difference Result 7803 states and 12172 transitions. [2024-11-19 00:04:00,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:04:00,460 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 537 [2024-11-19 00:04:00,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:04:00,483 INFO L225 Difference]: With dead ends: 7803 [2024-11-19 00:04:00,484 INFO L226 Difference]: Without dead ends: 5246 [2024-11-19 00:04:00,490 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:04:00,491 INFO L432 NwaCegarLoop]: 709 mSDtfsCounter, 638 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 1112 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:04:00,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 1112 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:04:00,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5246 states. [2024-11-19 00:04:00,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5246 to 2625. [2024-11-19 00:04:00,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2625 states, 2397 states have (on average 1.5047976637463496) internal successors, (3607), 2398 states have internal predecessors, (3607), 207 states have call successors, (207), 20 states have call predecessors, (207), 20 states have return successors, (207), 206 states have call predecessors, (207), 207 states have call successors, (207) [2024-11-19 00:04:00,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2625 states to 2625 states and 4021 transitions. [2024-11-19 00:04:00,663 INFO L78 Accepts]: Start accepts. Automaton has 2625 states and 4021 transitions. Word has length 537 [2024-11-19 00:04:00,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:04:00,664 INFO L471 AbstractCegarLoop]: Abstraction has 2625 states and 4021 transitions. [2024-11-19 00:04:00,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:04:00,664 INFO L276 IsEmpty]: Start isEmpty. Operand 2625 states and 4021 transitions. [2024-11-19 00:04:00,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2024-11-19 00:04:00,672 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:04:00,672 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:04:00,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 00:04:00,672 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:04:00,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:04:00,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1318922120, now seen corresponding path program 1 times [2024-11-19 00:04:00,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:04:00,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147171518] [2024-11-19 00:04:00,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:00,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:04:00,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:04:01,490 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-19 00:04:01,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:04:01,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147171518] [2024-11-19 00:04:01,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147171518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:04:01,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:04:01,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:04:01,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766035818] [2024-11-19 00:04:01,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:04:01,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:04:01,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:04:01,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:04:01,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:04:01,494 INFO L87 Difference]: Start difference. First operand 2625 states and 4021 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:04:02,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:04:02,263 INFO L93 Difference]: Finished difference Result 5942 states and 9096 transitions. [2024-11-19 00:04:02,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:04:02,263 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 537 [2024-11-19 00:04:02,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:04:02,278 INFO L225 Difference]: With dead ends: 5942 [2024-11-19 00:04:02,278 INFO L226 Difference]: Without dead ends: 4192 [2024-11-19 00:04:02,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:04:02,285 INFO L432 NwaCegarLoop]: 709 mSDtfsCounter, 860 mSDsluCounter, 690 mSDsCounter, 0 mSdLazyCounter, 312 mSolverCounterSat, 214 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 214 IncrementalHoareTripleChecker+Valid, 312 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:04:02,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 1399 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [214 Valid, 312 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 00:04:02,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4192 states. [2024-11-19 00:04:02,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4192 to 3183. [2024-11-19 00:04:02,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3183 states, 2955 states have (on average 1.499492385786802) internal successors, (4431), 2956 states have internal predecessors, (4431), 207 states have call successors, (207), 20 states have call predecessors, (207), 20 states have return successors, (207), 206 states have call predecessors, (207), 207 states have call successors, (207) [2024-11-19 00:04:02,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3183 states to 3183 states and 4845 transitions. [2024-11-19 00:04:02,493 INFO L78 Accepts]: Start accepts. Automaton has 3183 states and 4845 transitions. Word has length 537 [2024-11-19 00:04:02,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:04:02,495 INFO L471 AbstractCegarLoop]: Abstraction has 3183 states and 4845 transitions. [2024-11-19 00:04:02,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:04:02,495 INFO L276 IsEmpty]: Start isEmpty. Operand 3183 states and 4845 transitions. [2024-11-19 00:04:02,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2024-11-19 00:04:02,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:04:02,501 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:04:02,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 00:04:02,501 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:04:02,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:04:02,502 INFO L85 PathProgramCache]: Analyzing trace with hash -592120438, now seen corresponding path program 1 times [2024-11-19 00:04:02,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:04:02,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153661920] [2024-11-19 00:04:02,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:02,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:04:02,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:04:03,258 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-19 00:04:03,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:04:03,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153661920] [2024-11-19 00:04:03,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153661920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:04:03,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:04:03,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 00:04:03,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465006113] [2024-11-19 00:04:03,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:04:03,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 00:04:03,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:04:03,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 00:04:03,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 00:04:03,262 INFO L87 Difference]: Start difference. First operand 3183 states and 4845 transitions. Second operand has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:04:04,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:04:04,070 INFO L93 Difference]: Finished difference Result 5490 states and 8318 transitions. [2024-11-19 00:04:04,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 00:04:04,071 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 537 [2024-11-19 00:04:04,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:04:04,082 INFO L225 Difference]: With dead ends: 5490 [2024-11-19 00:04:04,083 INFO L226 Difference]: Without dead ends: 3150 [2024-11-19 00:04:04,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:04:04,088 INFO L432 NwaCegarLoop]: 780 mSDtfsCounter, 953 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 322 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:04:04,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [953 Valid, 1386 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 322 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 00:04:04,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3150 states. [2024-11-19 00:04:04,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3150 to 2385. [2024-11-19 00:04:04,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2385 states, 2157 states have (on average 1.4626796476587853) internal successors, (3155), 2158 states have internal predecessors, (3155), 207 states have call successors, (207), 20 states have call predecessors, (207), 20 states have return successors, (207), 206 states have call predecessors, (207), 207 states have call successors, (207) [2024-11-19 00:04:04,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 3569 transitions. [2024-11-19 00:04:04,232 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 3569 transitions. Word has length 537 [2024-11-19 00:04:04,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:04:04,233 INFO L471 AbstractCegarLoop]: Abstraction has 2385 states and 3569 transitions. [2024-11-19 00:04:04,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.0) internal successors, (145), 5 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:04:04,234 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 3569 transitions. [2024-11-19 00:04:04,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2024-11-19 00:04:04,239 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:04:04,239 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:04:04,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 00:04:04,240 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:04:04,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:04:04,240 INFO L85 PathProgramCache]: Analyzing trace with hash -2107510832, now seen corresponding path program 1 times [2024-11-19 00:04:04,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:04:04,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111385903] [2024-11-19 00:04:04,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:04,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:04:04,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:04:05,783 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-19 00:04:05,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:04:05,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111385903] [2024-11-19 00:04:05,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111385903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:04:05,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:04:05,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:04:05,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183802303] [2024-11-19 00:04:05,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:04:05,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:04:05,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:04:05,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:04:05,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:04:05,787 INFO L87 Difference]: Start difference. First operand 2385 states and 3569 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:04:06,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:04:06,910 INFO L93 Difference]: Finished difference Result 4040 states and 6069 transitions. [2024-11-19 00:04:06,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:04:06,911 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 537 [2024-11-19 00:04:06,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:04:06,920 INFO L225 Difference]: With dead ends: 4040 [2024-11-19 00:04:06,920 INFO L226 Difference]: Without dead ends: 2405 [2024-11-19 00:04:06,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:04:06,924 INFO L432 NwaCegarLoop]: 641 mSDtfsCounter, 401 mSDsluCounter, 668 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 1309 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:04:06,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 1309 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 00:04:06,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2405 states. [2024-11-19 00:04:07,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2405 to 2385. [2024-11-19 00:04:07,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2385 states, 2157 states have (on average 1.4571163653222068) internal successors, (3143), 2158 states have internal predecessors, (3143), 207 states have call successors, (207), 20 states have call predecessors, (207), 20 states have return successors, (207), 206 states have call predecessors, (207), 207 states have call successors, (207) [2024-11-19 00:04:07,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2385 states to 2385 states and 3557 transitions. [2024-11-19 00:04:07,088 INFO L78 Accepts]: Start accepts. Automaton has 2385 states and 3557 transitions. Word has length 537 [2024-11-19 00:04:07,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:04:07,089 INFO L471 AbstractCegarLoop]: Abstraction has 2385 states and 3557 transitions. [2024-11-19 00:04:07,089 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:04:07,089 INFO L276 IsEmpty]: Start isEmpty. Operand 2385 states and 3557 transitions. [2024-11-19 00:04:07,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2024-11-19 00:04:07,094 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:04:07,094 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:04:07,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 00:04:07,095 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:04:07,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:04:07,095 INFO L85 PathProgramCache]: Analyzing trace with hash -168348786, now seen corresponding path program 1 times [2024-11-19 00:04:07,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:04:07,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603673050] [2024-11-19 00:04:07,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:07,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:04:08,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:04:09,363 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 102 proven. 132 refuted. 0 times theorem prover too weak. 12090 trivial. 0 not checked. [2024-11-19 00:04:09,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:04:09,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603673050] [2024-11-19 00:04:09,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603673050] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:04:09,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297830486] [2024-11-19 00:04:09,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:09,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:04:09,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:04:09,367 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) [2024-11-19 00:04:09,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 00:04:09,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:04:09,795 INFO L255 TraceCheckSpWp]: Trace formula consists of 1250 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 00:04:09,804 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:04:10,554 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 6130 proven. 132 refuted. 0 times theorem prover too weak. 6062 trivial. 0 not checked. [2024-11-19 00:04:10,554 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 00:04:11,328 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 102 proven. 132 refuted. 0 times theorem prover too weak. 12090 trivial. 0 not checked. [2024-11-19 00:04:11,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297830486] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 00:04:11,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 00:04:11,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 12 [2024-11-19 00:04:11,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815915905] [2024-11-19 00:04:11,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 00:04:11,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 00:04:11,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:04:11,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 00:04:11,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:04:11,333 INFO L87 Difference]: Start difference. First operand 2385 states and 3557 transitions. Second operand has 12 states, 12 states have (on average 19.833333333333332) internal successors, (238), 12 states have internal predecessors, (238), 3 states have call successors, (167), 2 states have call predecessors, (167), 4 states have return successors, (168), 3 states have call predecessors, (168), 3 states have call successors, (168) [2024-11-19 00:04:13,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:04:13,246 INFO L93 Difference]: Finished difference Result 5420 states and 8101 transitions. [2024-11-19 00:04:13,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 00:04:13,247 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 19.833333333333332) internal successors, (238), 12 states have internal predecessors, (238), 3 states have call successors, (167), 2 states have call predecessors, (167), 4 states have return successors, (168), 3 states have call predecessors, (168), 3 states have call successors, (168) Word has length 537 [2024-11-19 00:04:13,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:04:13,260 INFO L225 Difference]: With dead ends: 5420 [2024-11-19 00:04:13,260 INFO L226 Difference]: Without dead ends: 3597 [2024-11-19 00:04:13,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1090 GetRequests, 1067 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=165, Invalid=341, Unknown=0, NotChecked=0, Total=506 [2024-11-19 00:04:13,267 INFO L432 NwaCegarLoop]: 678 mSDtfsCounter, 1449 mSDsluCounter, 2216 mSDsCounter, 0 mSdLazyCounter, 1773 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1595 SdHoareTripleChecker+Valid, 2894 SdHoareTripleChecker+Invalid, 2150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 1773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:04:13,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1595 Valid, 2894 Invalid, 2150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 1773 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-19 00:04:13,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3597 states. [2024-11-19 00:04:13,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3597 to 3073. [2024-11-19 00:04:13,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3073 states, 2651 states have (on average 1.4481327800829875) internal successors, (3839), 2656 states have internal predecessors, (3839), 377 states have call successors, (377), 44 states have call predecessors, (377), 44 states have return successors, (377), 372 states have call predecessors, (377), 377 states have call successors, (377) [2024-11-19 00:04:13,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3073 states to 3073 states and 4593 transitions. [2024-11-19 00:04:13,713 INFO L78 Accepts]: Start accepts. Automaton has 3073 states and 4593 transitions. Word has length 537 [2024-11-19 00:04:13,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:04:13,714 INFO L471 AbstractCegarLoop]: Abstraction has 3073 states and 4593 transitions. [2024-11-19 00:04:13,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 19.833333333333332) internal successors, (238), 12 states have internal predecessors, (238), 3 states have call successors, (167), 2 states have call predecessors, (167), 4 states have return successors, (168), 3 states have call predecessors, (168), 3 states have call successors, (168) [2024-11-19 00:04:13,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3073 states and 4593 transitions. [2024-11-19 00:04:13,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2024-11-19 00:04:13,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:04:13,723 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:04:13,745 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 00:04:13,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:04:13,924 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:04:13,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:04:13,925 INFO L85 PathProgramCache]: Analyzing trace with hash -1912359098, now seen corresponding path program 1 times [2024-11-19 00:04:13,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:04:13,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426228645] [2024-11-19 00:04:13,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:13,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:04:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:04:15,178 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-19 00:04:15,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:04:15,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426228645] [2024-11-19 00:04:15,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426228645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:04:15,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:04:15,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 00:04:15,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087677525] [2024-11-19 00:04:15,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:04:15,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 00:04:15,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:04:15,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 00:04:15,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:04:15,182 INFO L87 Difference]: Start difference. First operand 3073 states and 4593 transitions. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:04:16,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:04:16,150 INFO L93 Difference]: Finished difference Result 9012 states and 13455 transitions. [2024-11-19 00:04:16,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 00:04:16,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) Word has length 537 [2024-11-19 00:04:16,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:04:16,175 INFO L225 Difference]: With dead ends: 9012 [2024-11-19 00:04:16,176 INFO L226 Difference]: Without dead ends: 6703 [2024-11-19 00:04:16,185 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 00:04:16,186 INFO L432 NwaCegarLoop]: 888 mSDtfsCounter, 766 mSDsluCounter, 988 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 766 SdHoareTripleChecker+Valid, 1876 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:04:16,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [766 Valid, 1876 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 00:04:16,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6703 states. [2024-11-19 00:04:16,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6703 to 4641. [2024-11-19 00:04:16,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4641 states, 3989 states have (on average 1.4422160942592128) internal successors, (5753), 3998 states have internal predecessors, (5753), 581 states have call successors, (581), 70 states have call predecessors, (581), 70 states have return successors, (581), 572 states have call predecessors, (581), 581 states have call successors, (581) [2024-11-19 00:04:16,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4641 states to 4641 states and 6915 transitions. [2024-11-19 00:04:16,640 INFO L78 Accepts]: Start accepts. Automaton has 4641 states and 6915 transitions. Word has length 537 [2024-11-19 00:04:16,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:04:16,641 INFO L471 AbstractCegarLoop]: Abstraction has 4641 states and 6915 transitions. [2024-11-19 00:04:16,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79) [2024-11-19 00:04:16,642 INFO L276 IsEmpty]: Start isEmpty. Operand 4641 states and 6915 transitions. [2024-11-19 00:04:16,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 538 [2024-11-19 00:04:16,647 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:04:16,648 INFO L215 NwaCegarLoop]: trace histogram [79, 79, 79, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:04:16,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-19 00:04:16,648 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:04:16,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:04:16,648 INFO L85 PathProgramCache]: Analyzing trace with hash -959692092, now seen corresponding path program 1 times [2024-11-19 00:04:16,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:04:16,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819207938] [2024-11-19 00:04:16,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:04:16,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:04:16,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:04:17,953 INFO L134 CoverageAnalysis]: Checked inductivity of 12324 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12324 trivial. 0 not checked. [2024-11-19 00:04:17,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:04:17,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819207938] [2024-11-19 00:04:17,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819207938] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:04:17,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:04:17,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 00:04:17,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730863819] [2024-11-19 00:04:17,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:04:17,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 00:04:17,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:04:17,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 00:04:17,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 00:04:17,956 INFO L87 Difference]: Start difference. First operand 4641 states and 6915 transitions. Second operand has 6 states, 6 states have (on average 24.166666666666668) internal successors, (145), 6 states have internal predecessors, (145), 1 states have call successors, (79), 1 states have call predecessors, (79), 1 states have return successors, (79), 1 states have call predecessors, (79), 1 states have call successors, (79)