./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/systemc/toy.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/systemc/toy.cil.c -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 4a8eabec1830ab654b41f6937ec2f9359cd3dd371ede66eafc352bac48edda3b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 02:20:42,472 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 02:20:42,530 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 02:20:42,536 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 02:20:42,538 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 02:20:42,568 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 02:20:42,569 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 02:20:42,569 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 02:20:42,570 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 02:20:42,572 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 02:20:42,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 02:20:42,574 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 02:20:42,575 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 02:20:42,575 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 02:20:42,575 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 02:20:42,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 02:20:42,576 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 02:20:42,576 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 02:20:42,576 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 02:20:42,576 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 02:20:42,576 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 02:20:42,578 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 02:20:42,578 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 02:20:42,578 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 02:20:42,578 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 02:20:42,579 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 02:20:42,579 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 02:20:42,579 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 02:20:42,579 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 02:20:42,580 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 02:20:42,580 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 02:20:42,581 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 02:20:42,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:20:42,582 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 02:20:42,582 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 02:20:42,582 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 02:20:42,583 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 02:20:42,583 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 02:20:42,583 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 02:20:42,583 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 02:20:42,583 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 02:20:42,584 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 02:20:42,584 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4a8eabec1830ab654b41f6937ec2f9359cd3dd371ede66eafc352bac48edda3b [2024-11-22 02:20:42,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 02:20:42,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 02:20:42,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 02:20:42,920 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 02:20:42,921 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 02:20:42,922 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/toy.cil.c [2024-11-22 02:20:44,427 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 02:20:44,655 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 02:20:44,656 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/toy.cil.c [2024-11-22 02:20:44,668 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69ba70166/dc7ce33ac9514ec0b5ea1913186dafe5/FLAG6b73a3cac [2024-11-22 02:20:44,688 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/69ba70166/dc7ce33ac9514ec0b5ea1913186dafe5 [2024-11-22 02:20:44,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 02:20:44,691 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 02:20:44,693 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 02:20:44,693 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 02:20:44,699 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 02:20:44,700 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:20:44" (1/1) ... [2024-11-22 02:20:44,700 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1674c42b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:44, skipping insertion in model container [2024-11-22 02:20:44,701 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:20:44" (1/1) ... [2024-11-22 02:20:44,750 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 02:20:44,906 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/systemc/toy.cil.c[697,710] [2024-11-22 02:20:44,960 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:20:44,978 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 02:20:44,987 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/systemc/toy.cil.c[697,710] [2024-11-22 02:20:45,020 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:20:45,038 INFO L204 MainTranslator]: Completed translation [2024-11-22 02:20:45,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:45 WrapperNode [2024-11-22 02:20:45,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 02:20:45,039 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 02:20:45,039 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 02:20:45,040 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 02:20:45,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:45" (1/1) ... [2024-11-22 02:20:45,057 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:45" (1/1) ... [2024-11-22 02:20:45,077 INFO L138 Inliner]: procedures = 20, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 366 [2024-11-22 02:20:45,077 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 02:20:45,078 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 02:20:45,078 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 02:20:45,078 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 02:20:45,087 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:45" (1/1) ... [2024-11-22 02:20:45,087 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:45" (1/1) ... [2024-11-22 02:20:45,089 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:45" (1/1) ... [2024-11-22 02:20:45,099 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-22 02:20:45,099 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:45" (1/1) ... [2024-11-22 02:20:45,099 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:45" (1/1) ... [2024-11-22 02:20:45,103 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:45" (1/1) ... [2024-11-22 02:20:45,107 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:45" (1/1) ... [2024-11-22 02:20:45,109 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:45" (1/1) ... [2024-11-22 02:20:45,110 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:45" (1/1) ... [2024-11-22 02:20:45,113 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 02:20:45,113 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 02:20:45,113 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 02:20:45,114 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 02:20:45,114 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:45" (1/1) ... [2024-11-22 02:20:45,119 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:20:45,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:20:45,148 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 02:20:45,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 02:20:45,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 02:20:45,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 02:20:45,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 02:20:45,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 02:20:45,250 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 02:20:45,252 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 02:20:45,586 INFO L? ?]: Removed 21 outVars from TransFormulas that were not future-live. [2024-11-22 02:20:45,586 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 02:20:45,605 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 02:20:45,606 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-22 02:20:45,609 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:20:45 BoogieIcfgContainer [2024-11-22 02:20:45,609 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 02:20:45,611 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 02:20:45,611 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 02:20:45,614 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 02:20:45,614 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:20:44" (1/3) ... [2024-11-22 02:20:45,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732b898d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:20:45, skipping insertion in model container [2024-11-22 02:20:45,615 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:20:45" (2/3) ... [2024-11-22 02:20:45,615 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@732b898d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:20:45, skipping insertion in model container [2024-11-22 02:20:45,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:20:45" (3/3) ... [2024-11-22 02:20:45,617 INFO L112 eAbstractionObserver]: Analyzing ICFG toy.cil.c [2024-11-22 02:20:45,630 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 02:20:45,630 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 02:20:45,700 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 02:20:45,708 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;@7a04ae83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 02:20:45,708 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 02:20:45,713 INFO L276 IsEmpty]: Start isEmpty. Operand has 132 states, 130 states have (on average 1.8384615384615384) internal successors, (239), 131 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:45,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-22 02:20:45,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:45,726 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:45,728 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:45,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:45,735 INFO L85 PathProgramCache]: Analyzing trace with hash -895776564, now seen corresponding path program 1 times [2024-11-22 02:20:45,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:45,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196215565] [2024-11-22 02:20:45,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:45,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:45,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:45,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:45,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:45,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196215565] [2024-11-22 02:20:45,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196215565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:45,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:45,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:20:45,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004299714] [2024-11-22 02:20:45,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:45,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:20:45,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:45,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:20:45,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:20:45,988 INFO L87 Difference]: Start difference. First operand has 132 states, 130 states have (on average 1.8384615384615384) internal successors, (239), 131 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:46,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:46,026 INFO L93 Difference]: Finished difference Result 255 states and 464 transitions. [2024-11-22 02:20:46,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:20:46,031 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-22 02:20:46,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:46,042 INFO L225 Difference]: With dead ends: 255 [2024-11-22 02:20:46,042 INFO L226 Difference]: Without dead ends: 127 [2024-11-22 02:20:46,046 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 [2024-11-22 02:20:46,053 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 219 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:46,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 223 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:46,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-22 02:20:46,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-22 02:20:46,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.746031746031746) internal successors, (220), 126 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:46,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 220 transitions. [2024-11-22 02:20:46,164 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 220 transitions. Word has length 36 [2024-11-22 02:20:46,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:46,164 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 220 transitions. [2024-11-22 02:20:46,165 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:46,165 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 220 transitions. [2024-11-22 02:20:46,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-22 02:20:46,174 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:46,174 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:46,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 02:20:46,175 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:46,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:46,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1597376438, now seen corresponding path program 1 times [2024-11-22 02:20:46,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:46,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247975001] [2024-11-22 02:20:46,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:46,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:46,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:46,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:46,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247975001] [2024-11-22 02:20:46,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247975001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:46,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:46,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:20:46,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951793758] [2024-11-22 02:20:46,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:46,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:20:46,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:46,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:20:46,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:20:46,368 INFO L87 Difference]: Start difference. First operand 127 states and 220 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:46,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:46,413 INFO L93 Difference]: Finished difference Result 343 states and 592 transitions. [2024-11-22 02:20:46,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:20:46,413 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-22 02:20:46,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:46,415 INFO L225 Difference]: With dead ends: 343 [2024-11-22 02:20:46,415 INFO L226 Difference]: Without dead ends: 219 [2024-11-22 02:20:46,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:20:46,421 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 574 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 574 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:46,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [574 Valid, 370 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:46,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-22 02:20:46,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 216. [2024-11-22 02:20:46,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 1.7255813953488373) internal successors, (371), 215 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:46,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 371 transitions. [2024-11-22 02:20:46,448 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 371 transitions. Word has length 36 [2024-11-22 02:20:46,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:46,448 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 371 transitions. [2024-11-22 02:20:46,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:46,448 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 371 transitions. [2024-11-22 02:20:46,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-22 02:20:46,449 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:46,449 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:46,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 02:20:46,450 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:46,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:46,450 INFO L85 PathProgramCache]: Analyzing trace with hash -211173044, now seen corresponding path program 1 times [2024-11-22 02:20:46,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:46,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420869781] [2024-11-22 02:20:46,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:46,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:46,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:46,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:46,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:46,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420869781] [2024-11-22 02:20:46,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420869781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:46,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:46,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:20:46,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491954164] [2024-11-22 02:20:46,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:46,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:20:46,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:46,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:20:46,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:20:46,573 INFO L87 Difference]: Start difference. First operand 216 states and 371 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:46,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:46,621 INFO L93 Difference]: Finished difference Result 423 states and 729 transitions. [2024-11-22 02:20:46,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:20:46,621 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-22 02:20:46,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:46,623 INFO L225 Difference]: With dead ends: 423 [2024-11-22 02:20:46,623 INFO L226 Difference]: Without dead ends: 216 [2024-11-22 02:20:46,623 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 [2024-11-22 02:20:46,624 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 189 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 189 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:46,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [189 Valid, 203 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:46,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2024-11-22 02:20:46,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 216. [2024-11-22 02:20:46,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 1.669767441860465) internal successors, (359), 215 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:46,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 359 transitions. [2024-11-22 02:20:46,644 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 359 transitions. Word has length 36 [2024-11-22 02:20:46,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:46,645 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 359 transitions. [2024-11-22 02:20:46,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:46,645 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 359 transitions. [2024-11-22 02:20:46,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-22 02:20:46,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:46,646 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:46,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 02:20:46,646 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:46,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:46,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1741714488, now seen corresponding path program 1 times [2024-11-22 02:20:46,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:46,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673971774] [2024-11-22 02:20:46,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:46,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:46,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:46,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:46,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:46,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673971774] [2024-11-22 02:20:46,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673971774] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:46,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:46,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:20:46,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886902397] [2024-11-22 02:20:46,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:46,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:20:46,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:46,723 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:20:46,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:20:46,723 INFO L87 Difference]: Start difference. First operand 216 states and 359 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:46,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:46,834 INFO L93 Difference]: Finished difference Result 589 states and 980 transitions. [2024-11-22 02:20:46,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:20:46,834 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-22 02:20:46,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:46,836 INFO L225 Difference]: With dead ends: 589 [2024-11-22 02:20:46,836 INFO L226 Difference]: Without dead ends: 383 [2024-11-22 02:20:46,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:20:46,840 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 369 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 458 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:46,841 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 458 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:20:46,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states. [2024-11-22 02:20:46,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 216. [2024-11-22 02:20:46,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 1.655813953488372) internal successors, (356), 215 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:46,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 356 transitions. [2024-11-22 02:20:46,863 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 356 transitions. Word has length 36 [2024-11-22 02:20:46,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:46,863 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 356 transitions. [2024-11-22 02:20:46,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:46,864 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 356 transitions. [2024-11-22 02:20:46,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-22 02:20:46,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:46,865 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:46,865 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 02:20:46,865 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:46,866 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:46,866 INFO L85 PathProgramCache]: Analyzing trace with hash 181513546, now seen corresponding path program 1 times [2024-11-22 02:20:46,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:46,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073698579] [2024-11-22 02:20:46,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:46,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:46,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:46,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:46,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073698579] [2024-11-22 02:20:46,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073698579] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:46,911 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:46,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:20:46,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785265875] [2024-11-22 02:20:46,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:46,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:20:46,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:46,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:20:46,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:20:46,913 INFO L87 Difference]: Start difference. First operand 216 states and 356 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:46,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:46,986 INFO L93 Difference]: Finished difference Result 590 states and 974 transitions. [2024-11-22 02:20:46,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:20:46,987 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-22 02:20:46,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:46,989 INFO L225 Difference]: With dead ends: 590 [2024-11-22 02:20:46,989 INFO L226 Difference]: Without dead ends: 385 [2024-11-22 02:20:46,990 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:20:46,992 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 367 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 367 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:46,995 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [367 Valid, 465 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:20:46,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2024-11-22 02:20:47,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 216. [2024-11-22 02:20:47,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 1.6418604651162791) internal successors, (353), 215 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:47,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 353 transitions. [2024-11-22 02:20:47,015 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 353 transitions. Word has length 36 [2024-11-22 02:20:47,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:47,015 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 353 transitions. [2024-11-22 02:20:47,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:47,015 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 353 transitions. [2024-11-22 02:20:47,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-22 02:20:47,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:47,018 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:47,018 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 02:20:47,018 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:47,019 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:47,019 INFO L85 PathProgramCache]: Analyzing trace with hash 243553160, now seen corresponding path program 1 times [2024-11-22 02:20:47,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:47,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973961174] [2024-11-22 02:20:47,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:47,019 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:47,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:47,116 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:47,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:47,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973961174] [2024-11-22 02:20:47,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973961174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:47,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:47,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:20:47,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530142066] [2024-11-22 02:20:47,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:47,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:20:47,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:47,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:20:47,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:20:47,122 INFO L87 Difference]: Start difference. First operand 216 states and 353 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:47,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:47,217 INFO L93 Difference]: Finished difference Result 604 states and 987 transitions. [2024-11-22 02:20:47,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:20:47,218 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-22 02:20:47,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:47,221 INFO L225 Difference]: With dead ends: 604 [2024-11-22 02:20:47,221 INFO L226 Difference]: Without dead ends: 400 [2024-11-22 02:20:47,221 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:20:47,222 INFO L432 NwaCegarLoop]: 327 mSDtfsCounter, 373 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 473 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:47,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 473 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:20:47,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-22 02:20:47,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 222. [2024-11-22 02:20:47,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 221 states have (on average 1.6153846153846154) internal successors, (357), 221 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:47,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 357 transitions. [2024-11-22 02:20:47,243 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 357 transitions. Word has length 36 [2024-11-22 02:20:47,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:47,244 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 357 transitions. [2024-11-22 02:20:47,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:47,244 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 357 transitions. [2024-11-22 02:20:47,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-22 02:20:47,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:47,245 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:47,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 02:20:47,246 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:47,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:47,246 INFO L85 PathProgramCache]: Analyzing trace with hash 384101770, now seen corresponding path program 1 times [2024-11-22 02:20:47,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:47,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179027048] [2024-11-22 02:20:47,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:47,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:47,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:47,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:47,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:47,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179027048] [2024-11-22 02:20:47,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [179027048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:47,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:47,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:20:47,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864303101] [2024-11-22 02:20:47,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:47,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:20:47,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:47,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:20:47,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:20:47,306 INFO L87 Difference]: Start difference. First operand 222 states and 357 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:47,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:47,387 INFO L93 Difference]: Finished difference Result 759 states and 1219 transitions. [2024-11-22 02:20:47,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:20:47,388 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-22 02:20:47,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:47,390 INFO L225 Difference]: With dead ends: 759 [2024-11-22 02:20:47,390 INFO L226 Difference]: Without dead ends: 550 [2024-11-22 02:20:47,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:20:47,392 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 369 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 569 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:47,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 569 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:20:47,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2024-11-22 02:20:47,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 365. [2024-11-22 02:20:47,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 364 states have (on average 1.598901098901099) internal successors, (582), 364 states have internal predecessors, (582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:47,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 582 transitions. [2024-11-22 02:20:47,411 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 582 transitions. Word has length 36 [2024-11-22 02:20:47,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:47,412 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 582 transitions. [2024-11-22 02:20:47,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:47,413 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 582 transitions. [2024-11-22 02:20:47,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-22 02:20:47,414 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:47,414 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:47,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 02:20:47,415 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:47,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:47,415 INFO L85 PathProgramCache]: Analyzing trace with hash 250088264, now seen corresponding path program 1 times [2024-11-22 02:20:47,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:47,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371417527] [2024-11-22 02:20:47,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:47,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:47,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:47,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:47,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371417527] [2024-11-22 02:20:47,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371417527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:47,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:47,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:20:47,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682950906] [2024-11-22 02:20:47,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:47,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:20:47,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:47,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:20:47,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:20:47,461 INFO L87 Difference]: Start difference. First operand 365 states and 582 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:47,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:47,492 INFO L93 Difference]: Finished difference Result 872 states and 1395 transitions. [2024-11-22 02:20:47,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:20:47,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-22 02:20:47,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:47,494 INFO L225 Difference]: With dead ends: 872 [2024-11-22 02:20:47,494 INFO L226 Difference]: Without dead ends: 531 [2024-11-22 02:20:47,495 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 [2024-11-22 02:20:47,496 INFO L432 NwaCegarLoop]: 193 mSDtfsCounter, 177 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:47,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 342 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:47,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2024-11-22 02:20:47,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 529. [2024-11-22 02:20:47,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 528 states have (on average 1.5946969696969697) internal successors, (842), 528 states have internal predecessors, (842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:47,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 842 transitions. [2024-11-22 02:20:47,513 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 842 transitions. Word has length 36 [2024-11-22 02:20:47,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:47,513 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 842 transitions. [2024-11-22 02:20:47,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:47,513 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 842 transitions. [2024-11-22 02:20:47,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-22 02:20:47,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:47,514 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:47,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 02:20:47,514 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:47,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:47,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1539793604, now seen corresponding path program 1 times [2024-11-22 02:20:47,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:47,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057257785] [2024-11-22 02:20:47,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:47,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:47,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:47,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:47,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057257785] [2024-11-22 02:20:47,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057257785] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:47,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:47,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:20:47,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486839587] [2024-11-22 02:20:47,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:47,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:20:47,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:47,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:20:47,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:20:47,550 INFO L87 Difference]: Start difference. First operand 529 states and 842 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:47,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:47,617 INFO L93 Difference]: Finished difference Result 1347 states and 2145 transitions. [2024-11-22 02:20:47,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:20:47,618 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-22 02:20:47,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:47,620 INFO L225 Difference]: With dead ends: 1347 [2024-11-22 02:20:47,621 INFO L226 Difference]: Without dead ends: 835 [2024-11-22 02:20:47,621 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:20:47,622 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 484 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:47,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 330 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:47,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 835 states. [2024-11-22 02:20:47,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 835 to 529. [2024-11-22 02:20:47,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 528 states have (on average 1.5795454545454546) internal successors, (834), 528 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:47,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 834 transitions. [2024-11-22 02:20:47,644 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 834 transitions. Word has length 36 [2024-11-22 02:20:47,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:47,644 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 834 transitions. [2024-11-22 02:20:47,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:47,644 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 834 transitions. [2024-11-22 02:20:47,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-22 02:20:47,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:47,645 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:47,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 02:20:47,645 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:47,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:47,645 INFO L85 PathProgramCache]: Analyzing trace with hash -48554298, now seen corresponding path program 1 times [2024-11-22 02:20:47,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:47,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42063075] [2024-11-22 02:20:47,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:47,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:47,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:47,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:47,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:47,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42063075] [2024-11-22 02:20:47,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42063075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:47,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:47,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:20:47,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709566036] [2024-11-22 02:20:47,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:47,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:20:47,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:47,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:20:47,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:20:47,677 INFO L87 Difference]: Start difference. First operand 529 states and 834 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:47,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:47,803 INFO L93 Difference]: Finished difference Result 1347 states and 2122 transitions. [2024-11-22 02:20:47,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:20:47,808 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-22 02:20:47,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:47,810 INFO L225 Difference]: With dead ends: 1347 [2024-11-22 02:20:47,810 INFO L226 Difference]: Without dead ends: 841 [2024-11-22 02:20:47,815 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:20:47,816 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 468 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:47,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 319 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:20:47,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2024-11-22 02:20:47,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 529. [2024-11-22 02:20:47,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 528 states have (on average 1.5643939393939394) internal successors, (826), 528 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:47,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 826 transitions. [2024-11-22 02:20:47,867 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 826 transitions. Word has length 36 [2024-11-22 02:20:47,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:47,868 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 826 transitions. [2024-11-22 02:20:47,868 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:47,868 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 826 transitions. [2024-11-22 02:20:47,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-22 02:20:47,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:47,868 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:47,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 02:20:47,869 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:47,869 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:47,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1328417976, now seen corresponding path program 1 times [2024-11-22 02:20:47,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:47,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720189923] [2024-11-22 02:20:47,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:47,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:47,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:47,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:47,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:47,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720189923] [2024-11-22 02:20:47,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720189923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:47,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:47,922 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:20:47,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635441975] [2024-11-22 02:20:47,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:47,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:20:47,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:47,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:20:47,926 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:20:47,926 INFO L87 Difference]: Start difference. First operand 529 states and 826 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:48,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:48,040 INFO L93 Difference]: Finished difference Result 1276 states and 1990 transitions. [2024-11-22 02:20:48,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 02:20:48,041 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-22 02:20:48,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:48,043 INFO L225 Difference]: With dead ends: 1276 [2024-11-22 02:20:48,044 INFO L226 Difference]: Without dead ends: 764 [2024-11-22 02:20:48,048 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:20:48,049 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 480 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:48,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 349 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:20:48,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2024-11-22 02:20:48,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 577. [2024-11-22 02:20:48,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 577 states, 576 states have (on average 1.5329861111111112) internal successors, (883), 576 states have internal predecessors, (883), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:48,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 577 states to 577 states and 883 transitions. [2024-11-22 02:20:48,095 INFO L78 Accepts]: Start accepts. Automaton has 577 states and 883 transitions. Word has length 36 [2024-11-22 02:20:48,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:48,096 INFO L471 AbstractCegarLoop]: Abstraction has 577 states and 883 transitions. [2024-11-22 02:20:48,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:48,096 INFO L276 IsEmpty]: Start isEmpty. Operand 577 states and 883 transitions. [2024-11-22 02:20:48,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-22 02:20:48,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:48,099 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:48,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 02:20:48,100 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:48,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:48,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1915223990, now seen corresponding path program 1 times [2024-11-22 02:20:48,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:48,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169976847] [2024-11-22 02:20:48,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:48,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:48,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:48,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:48,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169976847] [2024-11-22 02:20:48,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169976847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:48,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:48,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:20:48,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655751492] [2024-11-22 02:20:48,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:48,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:20:48,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:48,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:20:48,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:20:48,141 INFO L87 Difference]: Start difference. First operand 577 states and 883 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:48,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:48,194 INFO L93 Difference]: Finished difference Result 1372 states and 2104 transitions. [2024-11-22 02:20:48,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:20:48,195 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-11-22 02:20:48,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:48,199 INFO L225 Difference]: With dead ends: 1372 [2024-11-22 02:20:48,199 INFO L226 Difference]: Without dead ends: 809 [2024-11-22 02:20:48,200 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 [2024-11-22 02:20:48,200 INFO L432 NwaCegarLoop]: 177 mSDtfsCounter, 118 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:48,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 312 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:48,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2024-11-22 02:20:48,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 806. [2024-11-22 02:20:48,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 806 states, 805 states have (on average 1.5142857142857142) internal successors, (1219), 805 states have internal predecessors, (1219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:48,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 806 states to 806 states and 1219 transitions. [2024-11-22 02:20:48,263 INFO L78 Accepts]: Start accepts. Automaton has 806 states and 1219 transitions. Word has length 36 [2024-11-22 02:20:48,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:48,263 INFO L471 AbstractCegarLoop]: Abstraction has 806 states and 1219 transitions. [2024-11-22 02:20:48,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:48,264 INFO L276 IsEmpty]: Start isEmpty. Operand 806 states and 1219 transitions. [2024-11-22 02:20:48,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-22 02:20:48,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:48,270 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:48,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 02:20:48,270 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:48,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:48,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1539863823, now seen corresponding path program 1 times [2024-11-22 02:20:48,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:48,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002531194] [2024-11-22 02:20:48,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:48,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:48,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:48,312 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:48,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:48,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002531194] [2024-11-22 02:20:48,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002531194] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:48,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:48,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:20:48,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768084141] [2024-11-22 02:20:48,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:48,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:20:48,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:48,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:20:48,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:20:48,313 INFO L87 Difference]: Start difference. First operand 806 states and 1219 transitions. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:48,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:48,435 INFO L93 Difference]: Finished difference Result 1999 states and 3056 transitions. [2024-11-22 02:20:48,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:20:48,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2024-11-22 02:20:48,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:48,443 INFO L225 Difference]: With dead ends: 1999 [2024-11-22 02:20:48,443 INFO L226 Difference]: Without dead ends: 1220 [2024-11-22 02:20:48,445 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 [2024-11-22 02:20:48,445 INFO L432 NwaCegarLoop]: 247 mSDtfsCounter, 81 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 414 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:48,445 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 414 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:48,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2024-11-22 02:20:48,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 1218. [2024-11-22 02:20:48,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1218 states, 1217 states have (on average 1.5209531635168447) internal successors, (1851), 1217 states have internal predecessors, (1851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:48,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1218 states to 1218 states and 1851 transitions. [2024-11-22 02:20:48,552 INFO L78 Accepts]: Start accepts. Automaton has 1218 states and 1851 transitions. Word has length 47 [2024-11-22 02:20:48,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:48,553 INFO L471 AbstractCegarLoop]: Abstraction has 1218 states and 1851 transitions. [2024-11-22 02:20:48,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:48,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1218 states and 1851 transitions. [2024-11-22 02:20:48,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-22 02:20:48,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:48,554 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:48,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 02:20:48,554 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:48,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:48,554 INFO L85 PathProgramCache]: Analyzing trace with hash 642470545, now seen corresponding path program 1 times [2024-11-22 02:20:48,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:48,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005264057] [2024-11-22 02:20:48,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:48,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:48,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:48,613 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 02:20:48,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:48,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005264057] [2024-11-22 02:20:48,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005264057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:48,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:48,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:20:48,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667917943] [2024-11-22 02:20:48,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:48,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:20:48,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:48,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:20:48,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:20:48,619 INFO L87 Difference]: Start difference. First operand 1218 states and 1851 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:48,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:48,707 INFO L93 Difference]: Finished difference Result 2387 states and 3643 transitions. [2024-11-22 02:20:48,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:20:48,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2024-11-22 02:20:48,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:48,712 INFO L225 Difference]: With dead ends: 2387 [2024-11-22 02:20:48,715 INFO L226 Difference]: Without dead ends: 1196 [2024-11-22 02:20:48,717 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 [2024-11-22 02:20:48,717 INFO L432 NwaCegarLoop]: 182 mSDtfsCounter, 179 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:48,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 182 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:48,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1196 states. [2024-11-22 02:20:48,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1196 to 1196. [2024-11-22 02:20:48,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1196 states, 1195 states have (on average 1.5263598326359833) internal successors, (1824), 1195 states have internal predecessors, (1824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:48,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1196 states to 1196 states and 1824 transitions. [2024-11-22 02:20:48,812 INFO L78 Accepts]: Start accepts. Automaton has 1196 states and 1824 transitions. Word has length 47 [2024-11-22 02:20:48,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:48,812 INFO L471 AbstractCegarLoop]: Abstraction has 1196 states and 1824 transitions. [2024-11-22 02:20:48,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:48,812 INFO L276 IsEmpty]: Start isEmpty. Operand 1196 states and 1824 transitions. [2024-11-22 02:20:48,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-22 02:20:48,813 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:48,813 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:48,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 02:20:48,813 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:48,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:48,814 INFO L85 PathProgramCache]: Analyzing trace with hash 1991530956, now seen corresponding path program 1 times [2024-11-22 02:20:48,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:48,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994521326] [2024-11-22 02:20:48,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:48,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:48,852 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:48,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:48,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994521326] [2024-11-22 02:20:48,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994521326] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:48,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:48,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:20:48,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129742165] [2024-11-22 02:20:48,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:48,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:20:48,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:48,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:20:48,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:20:48,854 INFO L87 Difference]: Start difference. First operand 1196 states and 1824 transitions. Second operand has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:48,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:48,940 INFO L93 Difference]: Finished difference Result 3056 states and 4711 transitions. [2024-11-22 02:20:48,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:20:48,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2024-11-22 02:20:48,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:48,947 INFO L225 Difference]: With dead ends: 3056 [2024-11-22 02:20:48,947 INFO L226 Difference]: Without dead ends: 1887 [2024-11-22 02:20:48,951 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 [2024-11-22 02:20:48,951 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 82 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:48,952 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 322 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:48,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1887 states. [2024-11-22 02:20:49,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1887 to 1885. [2024-11-22 02:20:49,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1885 states, 1884 states have (on average 1.5345010615711252) internal successors, (2891), 1884 states have internal predecessors, (2891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:49,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2891 transitions. [2024-11-22 02:20:49,037 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 2891 transitions. Word has length 48 [2024-11-22 02:20:49,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:49,038 INFO L471 AbstractCegarLoop]: Abstraction has 1885 states and 2891 transitions. [2024-11-22 02:20:49,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:49,039 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 2891 transitions. [2024-11-22 02:20:49,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-22 02:20:49,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:49,040 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:49,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 02:20:49,040 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:49,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:49,041 INFO L85 PathProgramCache]: Analyzing trace with hash 253027899, now seen corresponding path program 1 times [2024-11-22 02:20:49,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:49,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149337876] [2024-11-22 02:20:49,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:49,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:49,067 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:49,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:49,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149337876] [2024-11-22 02:20:49,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149337876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:49,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:49,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:20:49,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951726073] [2024-11-22 02:20:49,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:49,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:20:49,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:49,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:20:49,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:20:49,070 INFO L87 Difference]: Start difference. First operand 1885 states and 2891 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:49,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:49,216 INFO L93 Difference]: Finished difference Result 5076 states and 7877 transitions. [2024-11-22 02:20:49,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:20:49,216 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-11-22 02:20:49,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:49,225 INFO L225 Difference]: With dead ends: 5076 [2024-11-22 02:20:49,226 INFO L226 Difference]: Without dead ends: 3220 [2024-11-22 02:20:49,228 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 [2024-11-22 02:20:49,229 INFO L432 NwaCegarLoop]: 222 mSDtfsCounter, 86 mSDsluCounter, 163 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:49,229 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 385 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:49,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3220 states. [2024-11-22 02:20:49,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3220 to 3218. [2024-11-22 02:20:49,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3218 states, 3217 states have (on average 1.5461610195834627) internal successors, (4974), 3217 states have internal predecessors, (4974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:49,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3218 states to 3218 states and 4974 transitions. [2024-11-22 02:20:49,385 INFO L78 Accepts]: Start accepts. Automaton has 3218 states and 4974 transitions. Word has length 49 [2024-11-22 02:20:49,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:49,385 INFO L471 AbstractCegarLoop]: Abstraction has 3218 states and 4974 transitions. [2024-11-22 02:20:49,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:49,385 INFO L276 IsEmpty]: Start isEmpty. Operand 3218 states and 4974 transitions. [2024-11-22 02:20:49,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-22 02:20:49,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:49,387 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:49,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 02:20:49,387 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:49,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:49,388 INFO L85 PathProgramCache]: Analyzing trace with hash -644365379, now seen corresponding path program 1 times [2024-11-22 02:20:49,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:49,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297970804] [2024-11-22 02:20:49,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:49,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:49,413 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-22 02:20:49,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:49,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297970804] [2024-11-22 02:20:49,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297970804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:49,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:49,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:20:49,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666291468] [2024-11-22 02:20:49,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:49,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:20:49,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:49,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:20:49,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:20:49,415 INFO L87 Difference]: Start difference. First operand 3218 states and 4974 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:49,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:49,537 INFO L93 Difference]: Finished difference Result 6385 states and 9889 transitions. [2024-11-22 02:20:49,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:20:49,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2024-11-22 02:20:49,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:49,547 INFO L225 Difference]: With dead ends: 6385 [2024-11-22 02:20:49,547 INFO L226 Difference]: Without dead ends: 3196 [2024-11-22 02:20:49,551 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 [2024-11-22 02:20:49,551 INFO L432 NwaCegarLoop]: 181 mSDtfsCounter, 176 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:49,552 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 181 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:49,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3196 states. [2024-11-22 02:20:49,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3196 to 3196. [2024-11-22 02:20:49,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3196 states, 3195 states have (on average 1.5486697965571206) internal successors, (4948), 3195 states have internal predecessors, (4948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:49,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3196 states to 3196 states and 4948 transitions. [2024-11-22 02:20:49,678 INFO L78 Accepts]: Start accepts. Automaton has 3196 states and 4948 transitions. Word has length 49 [2024-11-22 02:20:49,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:49,678 INFO L471 AbstractCegarLoop]: Abstraction has 3196 states and 4948 transitions. [2024-11-22 02:20:49,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:49,679 INFO L276 IsEmpty]: Start isEmpty. Operand 3196 states and 4948 transitions. [2024-11-22 02:20:49,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-22 02:20:49,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:49,680 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:49,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-22 02:20:49,680 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:49,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:49,680 INFO L85 PathProgramCache]: Analyzing trace with hash -1777423200, now seen corresponding path program 1 times [2024-11-22 02:20:49,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:49,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222514152] [2024-11-22 02:20:49,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:49,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:49,730 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:49,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:49,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222514152] [2024-11-22 02:20:49,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222514152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:49,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:49,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:20:49,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915499674] [2024-11-22 02:20:49,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:49,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:20:49,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:49,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:20:49,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:20:49,731 INFO L87 Difference]: Start difference. First operand 3196 states and 4948 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:49,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:49,913 INFO L93 Difference]: Finished difference Result 8133 states and 12621 transitions. [2024-11-22 02:20:49,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:20:49,913 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2024-11-22 02:20:49,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:49,925 INFO L225 Difference]: With dead ends: 8133 [2024-11-22 02:20:49,925 INFO L226 Difference]: Without dead ends: 4173 [2024-11-22 02:20:49,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:20:49,929 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 401 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:49,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 305 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:49,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4173 states. [2024-11-22 02:20:50,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4173 to 4173. [2024-11-22 02:20:50,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4173 states, 4172 states have (on average 1.537392138063279) internal successors, (6414), 4172 states have internal predecessors, (6414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:50,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4173 states to 4173 states and 6414 transitions. [2024-11-22 02:20:50,121 INFO L78 Accepts]: Start accepts. Automaton has 4173 states and 6414 transitions. Word has length 50 [2024-11-22 02:20:50,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:50,121 INFO L471 AbstractCegarLoop]: Abstraction has 4173 states and 6414 transitions. [2024-11-22 02:20:50,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:50,122 INFO L276 IsEmpty]: Start isEmpty. Operand 4173 states and 6414 transitions. [2024-11-22 02:20:50,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-22 02:20:50,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:50,124 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:50,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-22 02:20:50,124 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:50,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:50,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1800183507, now seen corresponding path program 1 times [2024-11-22 02:20:50,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:50,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354575890] [2024-11-22 02:20:50,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:50,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:50,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:50,197 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:50,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:50,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354575890] [2024-11-22 02:20:50,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354575890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:50,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:50,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:20:50,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168434924] [2024-11-22 02:20:50,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:50,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:20:50,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:50,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:20:50,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:20:50,200 INFO L87 Difference]: Start difference. First operand 4173 states and 6414 transitions. Second operand has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:50,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:50,545 INFO L93 Difference]: Finished difference Result 10612 states and 16218 transitions. [2024-11-22 02:20:50,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 02:20:50,546 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-22 02:20:50,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:50,574 INFO L225 Difference]: With dead ends: 10612 [2024-11-22 02:20:50,575 INFO L226 Difference]: Without dead ends: 6462 [2024-11-22 02:20:50,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:20:50,580 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 684 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:50,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [684 Valid, 514 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:20:50,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6462 states. [2024-11-22 02:20:50,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6462 to 4868. [2024-11-22 02:20:50,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4868 states, 4867 states have (on average 1.5062666940620506) internal successors, (7331), 4867 states have internal predecessors, (7331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:50,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4868 states to 4868 states and 7331 transitions. [2024-11-22 02:20:50,765 INFO L78 Accepts]: Start accepts. Automaton has 4868 states and 7331 transitions. Word has length 56 [2024-11-22 02:20:50,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:50,765 INFO L471 AbstractCegarLoop]: Abstraction has 4868 states and 7331 transitions. [2024-11-22 02:20:50,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.2) internal successors, (56), 5 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:50,766 INFO L276 IsEmpty]: Start isEmpty. Operand 4868 states and 7331 transitions. [2024-11-22 02:20:50,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-22 02:20:50,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:50,769 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:50,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-22 02:20:50,769 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:50,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:50,770 INFO L85 PathProgramCache]: Analyzing trace with hash 138410889, now seen corresponding path program 1 times [2024-11-22 02:20:50,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:50,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184291549] [2024-11-22 02:20:50,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:50,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:50,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:50,799 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:50,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:50,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184291549] [2024-11-22 02:20:50,799 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184291549] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:50,799 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:50,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:20:50,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904288615] [2024-11-22 02:20:50,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:50,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:20:50,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:50,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:20:50,801 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:20:50,801 INFO L87 Difference]: Start difference. First operand 4868 states and 7331 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:50,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:50,979 INFO L93 Difference]: Finished difference Result 10083 states and 15152 transitions. [2024-11-22 02:20:50,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:20:50,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2024-11-22 02:20:50,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:51,000 INFO L225 Difference]: With dead ends: 10083 [2024-11-22 02:20:51,000 INFO L226 Difference]: Without dead ends: 5244 [2024-11-22 02:20:51,007 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 [2024-11-22 02:20:51,008 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 128 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:51,008 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 311 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:51,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5244 states. [2024-11-22 02:20:51,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5244 to 5212. [2024-11-22 02:20:51,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5212 states, 5211 states have (on average 1.459220878909998) internal successors, (7604), 5211 states have internal predecessors, (7604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:51,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5212 states to 5212 states and 7604 transitions. [2024-11-22 02:20:51,245 INFO L78 Accepts]: Start accepts. Automaton has 5212 states and 7604 transitions. Word has length 90 [2024-11-22 02:20:51,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:51,245 INFO L471 AbstractCegarLoop]: Abstraction has 5212 states and 7604 transitions. [2024-11-22 02:20:51,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:51,245 INFO L276 IsEmpty]: Start isEmpty. Operand 5212 states and 7604 transitions. [2024-11-22 02:20:51,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-22 02:20:51,250 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:51,250 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:51,250 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-22 02:20:51,250 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:51,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:51,251 INFO L85 PathProgramCache]: Analyzing trace with hash -56607288, now seen corresponding path program 1 times [2024-11-22 02:20:51,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:51,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822526169] [2024-11-22 02:20:51,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:51,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:51,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:51,278 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:51,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:51,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822526169] [2024-11-22 02:20:51,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822526169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:51,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:51,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:20:51,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517360055] [2024-11-22 02:20:51,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:51,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:20:51,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:51,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:20:51,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:20:51,280 INFO L87 Difference]: Start difference. First operand 5212 states and 7604 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:51,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:51,574 INFO L93 Difference]: Finished difference Result 10937 states and 15918 transitions. [2024-11-22 02:20:51,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:20:51,574 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-22 02:20:51,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:51,586 INFO L225 Difference]: With dead ends: 10937 [2024-11-22 02:20:51,586 INFO L226 Difference]: Without dead ends: 5766 [2024-11-22 02:20:51,593 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 [2024-11-22 02:20:51,593 INFO L432 NwaCegarLoop]: 235 mSDtfsCounter, 127 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:51,594 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 310 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:51,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5766 states. [2024-11-22 02:20:51,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5766 to 5718. [2024-11-22 02:20:51,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5718 states, 5717 states have (on average 1.4131537519678152) internal successors, (8079), 5717 states have internal predecessors, (8079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:51,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5718 states to 5718 states and 8079 transitions. [2024-11-22 02:20:51,931 INFO L78 Accepts]: Start accepts. Automaton has 5718 states and 8079 transitions. Word has length 91 [2024-11-22 02:20:51,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:51,932 INFO L471 AbstractCegarLoop]: Abstraction has 5718 states and 8079 transitions. [2024-11-22 02:20:51,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:51,932 INFO L276 IsEmpty]: Start isEmpty. Operand 5718 states and 8079 transitions. [2024-11-22 02:20:51,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-22 02:20:51,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:51,937 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:51,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-22 02:20:51,938 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:51,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:51,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1840400199, now seen corresponding path program 1 times [2024-11-22 02:20:51,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:51,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991163158] [2024-11-22 02:20:51,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:51,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:51,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:51,970 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:20:51,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:51,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991163158] [2024-11-22 02:20:51,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991163158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:51,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:51,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:20:51,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951094646] [2024-11-22 02:20:51,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:51,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:20:51,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:51,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:20:51,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:20:51,973 INFO L87 Difference]: Start difference. First operand 5718 states and 8079 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:52,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:52,202 INFO L93 Difference]: Finished difference Result 11756 states and 16622 transitions. [2024-11-22 02:20:52,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:20:52,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-22 02:20:52,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:52,216 INFO L225 Difference]: With dead ends: 11756 [2024-11-22 02:20:52,216 INFO L226 Difference]: Without dead ends: 6099 [2024-11-22 02:20:52,223 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 [2024-11-22 02:20:52,224 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 123 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:52,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 307 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:52,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6099 states. [2024-11-22 02:20:52,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6099 to 5484. [2024-11-22 02:20:52,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5483 states have (on average 1.3549151924129126) internal successors, (7429), 5483 states have internal predecessors, (7429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:52,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 7429 transitions. [2024-11-22 02:20:52,467 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 7429 transitions. Word has length 92 [2024-11-22 02:20:52,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:52,467 INFO L471 AbstractCegarLoop]: Abstraction has 5484 states and 7429 transitions. [2024-11-22 02:20:52,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:52,468 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 7429 transitions. [2024-11-22 02:20:52,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-22 02:20:52,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:52,474 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:52,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-22 02:20:52,474 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:52,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:52,474 INFO L85 PathProgramCache]: Analyzing trace with hash -195529206, now seen corresponding path program 1 times [2024-11-22 02:20:52,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:52,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932506649] [2024-11-22 02:20:52,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:52,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:52,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:52,534 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-22 02:20:52,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:52,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932506649] [2024-11-22 02:20:52,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932506649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:52,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:52,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:20:52,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52454921] [2024-11-22 02:20:52,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:52,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:20:52,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:52,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:20:52,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:20:52,537 INFO L87 Difference]: Start difference. First operand 5484 states and 7429 transitions. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:52,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:52,818 INFO L93 Difference]: Finished difference Result 10260 states and 13825 transitions. [2024-11-22 02:20:52,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:20:52,818 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-22 02:20:52,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:52,829 INFO L225 Difference]: With dead ends: 10260 [2024-11-22 02:20:52,829 INFO L226 Difference]: Without dead ends: 5263 [2024-11-22 02:20:52,834 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:20:52,835 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 441 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:52,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 390 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:20:52,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5263 states. [2024-11-22 02:20:53,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5263 to 5149. [2024-11-22 02:20:53,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5149 states, 5148 states have (on average 1.3090520590520591) internal successors, (6739), 5148 states have internal predecessors, (6739), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:53,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5149 states to 5149 states and 6739 transitions. [2024-11-22 02:20:53,021 INFO L78 Accepts]: Start accepts. Automaton has 5149 states and 6739 transitions. Word has length 93 [2024-11-22 02:20:53,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:53,022 INFO L471 AbstractCegarLoop]: Abstraction has 5149 states and 6739 transitions. [2024-11-22 02:20:53,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:53,022 INFO L276 IsEmpty]: Start isEmpty. Operand 5149 states and 6739 transitions. [2024-11-22 02:20:53,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-22 02:20:53,030 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:53,030 INFO L215 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:53,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-22 02:20:53,030 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:53,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:53,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1965826331, now seen corresponding path program 1 times [2024-11-22 02:20:53,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:53,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128115888] [2024-11-22 02:20:53,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:53,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:53,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:53,067 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 02:20:53,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:53,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128115888] [2024-11-22 02:20:53,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128115888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:53,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:53,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:20:53,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525418489] [2024-11-22 02:20:53,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:53,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:20:53,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:53,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:20:53,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:20:53,069 INFO L87 Difference]: Start difference. First operand 5149 states and 6739 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:53,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:53,259 INFO L93 Difference]: Finished difference Result 9832 states and 12854 transitions. [2024-11-22 02:20:53,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:20:53,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 122 [2024-11-22 02:20:53,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:53,270 INFO L225 Difference]: With dead ends: 9832 [2024-11-22 02:20:53,270 INFO L226 Difference]: Without dead ends: 5095 [2024-11-22 02:20:53,275 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 [2024-11-22 02:20:53,276 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 34 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:53,277 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 301 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:53,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5095 states. [2024-11-22 02:20:53,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5095 to 5095. [2024-11-22 02:20:53,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5095 states, 5094 states have (on average 1.302120141342756) internal successors, (6633), 5094 states have internal predecessors, (6633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:53,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5095 states to 5095 states and 6633 transitions. [2024-11-22 02:20:53,460 INFO L78 Accepts]: Start accepts. Automaton has 5095 states and 6633 transitions. Word has length 122 [2024-11-22 02:20:53,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:53,461 INFO L471 AbstractCegarLoop]: Abstraction has 5095 states and 6633 transitions. [2024-11-22 02:20:53,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:53,463 INFO L276 IsEmpty]: Start isEmpty. Operand 5095 states and 6633 transitions. [2024-11-22 02:20:53,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-11-22 02:20:53,471 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:53,471 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:53,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-22 02:20:53,471 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:53,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:53,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1720762163, now seen corresponding path program 1 times [2024-11-22 02:20:53,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:53,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43718154] [2024-11-22 02:20:53,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:53,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:53,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:53,557 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 02:20:53,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:53,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43718154] [2024-11-22 02:20:53,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43718154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:53,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:53,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:20:53,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809254146] [2024-11-22 02:20:53,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:53,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:20:53,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:53,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:20:53,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:20:53,559 INFO L87 Difference]: Start difference. First operand 5095 states and 6633 transitions. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:53,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:53,864 INFO L93 Difference]: Finished difference Result 9065 states and 11821 transitions. [2024-11-22 02:20:53,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:20:53,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 135 [2024-11-22 02:20:53,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:53,875 INFO L225 Difference]: With dead ends: 9065 [2024-11-22 02:20:53,876 INFO L226 Difference]: Without dead ends: 5011 [2024-11-22 02:20:53,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:20:53,883 INFO L432 NwaCegarLoop]: 204 mSDtfsCounter, 306 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 306 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:53,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [306 Valid, 312 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:53,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5011 states. [2024-11-22 02:20:54,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5011 to 5009. [2024-11-22 02:20:54,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5009 states, 5008 states have (on average 1.279552715654952) internal successors, (6408), 5008 states have internal predecessors, (6408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:54,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5009 states to 5009 states and 6408 transitions. [2024-11-22 02:20:54,183 INFO L78 Accepts]: Start accepts. Automaton has 5009 states and 6408 transitions. Word has length 135 [2024-11-22 02:20:54,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:54,184 INFO L471 AbstractCegarLoop]: Abstraction has 5009 states and 6408 transitions. [2024-11-22 02:20:54,184 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:54,184 INFO L276 IsEmpty]: Start isEmpty. Operand 5009 states and 6408 transitions. [2024-11-22 02:20:54,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-22 02:20:54,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:54,193 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:54,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-22 02:20:54,193 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:54,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:54,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1604483709, now seen corresponding path program 1 times [2024-11-22 02:20:54,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:54,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066120813] [2024-11-22 02:20:54,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:54,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:54,237 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-22 02:20:54,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:54,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066120813] [2024-11-22 02:20:54,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066120813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:54,238 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:54,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:20:54,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770531992] [2024-11-22 02:20:54,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:54,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:20:54,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:54,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:20:54,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:20:54,239 INFO L87 Difference]: Start difference. First operand 5009 states and 6408 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:54,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:54,530 INFO L93 Difference]: Finished difference Result 9599 states and 12268 transitions. [2024-11-22 02:20:54,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:20:54,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-11-22 02:20:54,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:54,544 INFO L225 Difference]: With dead ends: 9599 [2024-11-22 02:20:54,544 INFO L226 Difference]: Without dead ends: 5009 [2024-11-22 02:20:54,549 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 [2024-11-22 02:20:54,550 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 25 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:54,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 300 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:54,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5009 states. [2024-11-22 02:20:54,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5009 to 4969. [2024-11-22 02:20:54,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4969 states, 4968 states have (on average 1.2733494363929148) internal successors, (6326), 4968 states have internal predecessors, (6326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:54,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4969 states to 4969 states and 6326 transitions. [2024-11-22 02:20:54,861 INFO L78 Accepts]: Start accepts. Automaton has 4969 states and 6326 transitions. Word has length 141 [2024-11-22 02:20:54,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:54,862 INFO L471 AbstractCegarLoop]: Abstraction has 4969 states and 6326 transitions. [2024-11-22 02:20:54,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 3 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:54,862 INFO L276 IsEmpty]: Start isEmpty. Operand 4969 states and 6326 transitions. [2024-11-22 02:20:54,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-22 02:20:54,870 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:54,870 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:54,870 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-22 02:20:54,870 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:54,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:54,871 INFO L85 PathProgramCache]: Analyzing trace with hash -371935883, now seen corresponding path program 1 times [2024-11-22 02:20:54,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:54,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726840056] [2024-11-22 02:20:54,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:54,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:54,903 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-22 02:20:54,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:54,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726840056] [2024-11-22 02:20:54,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726840056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:54,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:54,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:20:54,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702404149] [2024-11-22 02:20:54,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:54,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:20:54,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:54,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:20:54,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:20:54,905 INFO L87 Difference]: Start difference. First operand 4969 states and 6326 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:55,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:55,099 INFO L93 Difference]: Finished difference Result 9547 states and 12146 transitions. [2024-11-22 02:20:55,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:20:55,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2024-11-22 02:20:55,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:55,109 INFO L225 Difference]: With dead ends: 9547 [2024-11-22 02:20:55,109 INFO L226 Difference]: Without dead ends: 4978 [2024-11-22 02:20:55,114 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 [2024-11-22 02:20:55,115 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 21 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 299 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:55,115 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 299 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:55,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4978 states. [2024-11-22 02:20:55,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4978 to 4938. [2024-11-22 02:20:55,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4938 states, 4937 states have (on average 1.2667611910066843) internal successors, (6254), 4937 states have internal predecessors, (6254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:55,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4938 states to 4938 states and 6254 transitions. [2024-11-22 02:20:55,287 INFO L78 Accepts]: Start accepts. Automaton has 4938 states and 6254 transitions. Word has length 141 [2024-11-22 02:20:55,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:55,287 INFO L471 AbstractCegarLoop]: Abstraction has 4938 states and 6254 transitions. [2024-11-22 02:20:55,288 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:55,288 INFO L276 IsEmpty]: Start isEmpty. Operand 4938 states and 6254 transitions. [2024-11-22 02:20:55,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 02:20:55,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:55,294 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:55,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-22 02:20:55,295 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:55,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:55,295 INFO L85 PathProgramCache]: Analyzing trace with hash 1226586588, now seen corresponding path program 1 times [2024-11-22 02:20:55,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:55,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775627780] [2024-11-22 02:20:55,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:55,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:55,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:55,370 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-22 02:20:55,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:55,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775627780] [2024-11-22 02:20:55,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775627780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:55,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:55,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:20:55,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675058970] [2024-11-22 02:20:55,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:55,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:20:55,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:55,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:20:55,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:20:55,372 INFO L87 Difference]: Start difference. First operand 4938 states and 6254 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:55,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:55,514 INFO L93 Difference]: Finished difference Result 8060 states and 10251 transitions. [2024-11-22 02:20:55,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:20:55,515 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2024-11-22 02:20:55,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:55,523 INFO L225 Difference]: With dead ends: 8060 [2024-11-22 02:20:55,524 INFO L226 Difference]: Without dead ends: 3522 [2024-11-22 02:20:55,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:20:55,528 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 278 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 278 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:55,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [278 Valid, 291 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:55,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3522 states. [2024-11-22 02:20:55,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3522 to 3520. [2024-11-22 02:20:55,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3520 states, 3519 states have (on average 1.2358624609263995) internal successors, (4349), 3519 states have internal predecessors, (4349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:55,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3520 states to 3520 states and 4349 transitions. [2024-11-22 02:20:55,651 INFO L78 Accepts]: Start accepts. Automaton has 3520 states and 4349 transitions. Word has length 145 [2024-11-22 02:20:55,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:55,651 INFO L471 AbstractCegarLoop]: Abstraction has 3520 states and 4349 transitions. [2024-11-22 02:20:55,651 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:55,651 INFO L276 IsEmpty]: Start isEmpty. Operand 3520 states and 4349 transitions. [2024-11-22 02:20:55,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-22 02:20:55,655 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:55,655 INFO L215 NwaCegarLoop]: trace histogram [5, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:55,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-22 02:20:55,655 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:55,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:55,656 INFO L85 PathProgramCache]: Analyzing trace with hash 546835114, now seen corresponding path program 1 times [2024-11-22 02:20:55,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:55,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334933215] [2024-11-22 02:20:55,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:55,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:55,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:55,725 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-22 02:20:55,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:55,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334933215] [2024-11-22 02:20:55,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334933215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:55,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:55,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:20:55,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302863853] [2024-11-22 02:20:55,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:55,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:20:55,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:55,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:20:55,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:20:55,727 INFO L87 Difference]: Start difference. First operand 3520 states and 4349 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:55,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:55,823 INFO L93 Difference]: Finished difference Result 5695 states and 7039 transitions. [2024-11-22 02:20:55,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:20:55,824 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2024-11-22 02:20:55,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:55,830 INFO L225 Difference]: With dead ends: 5695 [2024-11-22 02:20:55,830 INFO L226 Difference]: Without dead ends: 2256 [2024-11-22 02:20:55,833 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:20:55,834 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 282 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:55,834 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 284 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:55,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2256 states. [2024-11-22 02:20:55,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2256 to 2254. [2024-11-22 02:20:55,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2254 states, 2253 states have (on average 1.2041722148246783) internal successors, (2713), 2253 states have internal predecessors, (2713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:55,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2254 states to 2254 states and 2713 transitions. [2024-11-22 02:20:55,914 INFO L78 Accepts]: Start accepts. Automaton has 2254 states and 2713 transitions. Word has length 145 [2024-11-22 02:20:55,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:55,914 INFO L471 AbstractCegarLoop]: Abstraction has 2254 states and 2713 transitions. [2024-11-22 02:20:55,914 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), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:55,914 INFO L276 IsEmpty]: Start isEmpty. Operand 2254 states and 2713 transitions. [2024-11-22 02:20:55,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2024-11-22 02:20:55,915 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:55,916 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:55,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-22 02:20:55,916 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:55,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:55,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1626731220, now seen corresponding path program 1 times [2024-11-22 02:20:55,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:55,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839773871] [2024-11-22 02:20:55,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:55,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:55,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:55,950 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-22 02:20:55,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:55,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839773871] [2024-11-22 02:20:55,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839773871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:55,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:55,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:20:55,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437448177] [2024-11-22 02:20:55,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:55,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:20:55,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:55,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:20:55,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:20:55,952 INFO L87 Difference]: Start difference. First operand 2254 states and 2713 transitions. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:56,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:56,054 INFO L93 Difference]: Finished difference Result 4070 states and 4934 transitions. [2024-11-22 02:20:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:20:56,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 184 [2024-11-22 02:20:56,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:56,059 INFO L225 Difference]: With dead ends: 4070 [2024-11-22 02:20:56,060 INFO L226 Difference]: Without dead ends: 2192 [2024-11-22 02:20:56,061 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 [2024-11-22 02:20:56,062 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 1 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:56,062 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 300 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:56,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2192 states. [2024-11-22 02:20:56,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2192 to 2114. [2024-11-22 02:20:56,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2114 states, 2113 states have (on average 1.1902508282063418) internal successors, (2515), 2113 states have internal predecessors, (2515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:56,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2114 states to 2114 states and 2515 transitions. [2024-11-22 02:20:56,136 INFO L78 Accepts]: Start accepts. Automaton has 2114 states and 2515 transitions. Word has length 184 [2024-11-22 02:20:56,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:56,137 INFO L471 AbstractCegarLoop]: Abstraction has 2114 states and 2515 transitions. [2024-11-22 02:20:56,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:56,138 INFO L276 IsEmpty]: Start isEmpty. Operand 2114 states and 2515 transitions. [2024-11-22 02:20:56,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-22 02:20:56,139 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:56,139 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:56,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-22 02:20:56,139 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:56,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:56,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1822764650, now seen corresponding path program 1 times [2024-11-22 02:20:56,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:56,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920669501] [2024-11-22 02:20:56,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:56,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:56,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:56,170 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-22 02:20:56,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:56,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920669501] [2024-11-22 02:20:56,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920669501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:20:56,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:20:56,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:20:56,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915599489] [2024-11-22 02:20:56,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:20:56,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:20:56,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:56,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:20:56,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:20:56,172 INFO L87 Difference]: Start difference. First operand 2114 states and 2515 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:56,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:56,260 INFO L93 Difference]: Finished difference Result 4533 states and 5432 transitions. [2024-11-22 02:20:56,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:20:56,260 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 191 [2024-11-22 02:20:56,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:56,266 INFO L225 Difference]: With dead ends: 4533 [2024-11-22 02:20:56,266 INFO L226 Difference]: Without dead ends: 2789 [2024-11-22 02:20:56,267 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 [2024-11-22 02:20:56,268 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 132 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:56,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 298 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:20:56,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states. [2024-11-22 02:20:56,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 2408. [2024-11-22 02:20:56,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2408 states, 2407 states have (on average 1.1761528874117158) internal successors, (2831), 2407 states have internal predecessors, (2831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:56,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2408 states to 2408 states and 2831 transitions. [2024-11-22 02:20:56,353 INFO L78 Accepts]: Start accepts. Automaton has 2408 states and 2831 transitions. Word has length 191 [2024-11-22 02:20:56,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:20:56,353 INFO L471 AbstractCegarLoop]: Abstraction has 2408 states and 2831 transitions. [2024-11-22 02:20:56,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:56,354 INFO L276 IsEmpty]: Start isEmpty. Operand 2408 states and 2831 transitions. [2024-11-22 02:20:56,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-11-22 02:20:56,355 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:20:56,356 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:20:56,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-22 02:20:56,356 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:20:56,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:20:56,356 INFO L85 PathProgramCache]: Analyzing trace with hash 377236115, now seen corresponding path program 1 times [2024-11-22 02:20:56,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:20:56,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650221227] [2024-11-22 02:20:56,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:56,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:20:56,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:56,662 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 02:20:56,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:20:56,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650221227] [2024-11-22 02:20:56,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650221227] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:20:56,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707174430] [2024-11-22 02:20:56,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:20:56,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:20:56,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:20:56,666 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:20:56,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 02:20:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:20:56,760 INFO L255 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-22 02:20:56,769 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:20:57,048 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 85 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 02:20:57,048 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:20:57,541 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 85 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-22 02:20:57,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707174430] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:20:57,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:20:57,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 11] total 27 [2024-11-22 02:20:57,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800561301] [2024-11-22 02:20:57,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:20:57,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-22 02:20:57,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:20:57,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-22 02:20:57,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=623, Unknown=0, NotChecked=0, Total=702 [2024-11-22 02:20:57,544 INFO L87 Difference]: Start difference. First operand 2408 states and 2831 transitions. Second operand has 27 states, 27 states have (on average 17.51851851851852) internal successors, (473), 27 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:20:59,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:20:59,763 INFO L93 Difference]: Finished difference Result 9888 states and 11621 transitions. [2024-11-22 02:20:59,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2024-11-22 02:20:59,764 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 17.51851851851852) internal successors, (473), 27 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 194 [2024-11-22 02:20:59,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:20:59,791 INFO L225 Difference]: With dead ends: 9888 [2024-11-22 02:20:59,791 INFO L226 Difference]: Without dead ends: 7837 [2024-11-22 02:20:59,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 464 GetRequests, 395 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1030 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=608, Invalid=4362, Unknown=0, NotChecked=0, Total=4970 [2024-11-22 02:20:59,800 INFO L432 NwaCegarLoop]: 543 mSDtfsCounter, 3448 mSDsluCounter, 8163 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3448 SdHoareTripleChecker+Valid, 8706 SdHoareTripleChecker+Invalid, 808 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 02:20:59,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3448 Valid, 8706 Invalid, 808 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 02:20:59,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7837 states. [2024-11-22 02:21:00,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7837 to 3429. [2024-11-22 02:21:00,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3429 states, 3428 states have (on average 1.175029171528588) internal successors, (4028), 3428 states have internal predecessors, (4028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:21:00,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3429 states to 3429 states and 4028 transitions. [2024-11-22 02:21:00,061 INFO L78 Accepts]: Start accepts. Automaton has 3429 states and 4028 transitions. Word has length 194 [2024-11-22 02:21:00,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:21:00,061 INFO L471 AbstractCegarLoop]: Abstraction has 3429 states and 4028 transitions. [2024-11-22 02:21:00,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 17.51851851851852) internal successors, (473), 27 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:21:00,062 INFO L276 IsEmpty]: Start isEmpty. Operand 3429 states and 4028 transitions. [2024-11-22 02:21:00,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-11-22 02:21:00,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:21:00,064 INFO L215 NwaCegarLoop]: trace histogram [9, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:21:00,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 02:21:00,264 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,SelfDestructingSolverStorable31 [2024-11-22 02:21:00,265 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:21:00,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:21:00,266 INFO L85 PathProgramCache]: Analyzing trace with hash -714863608, now seen corresponding path program 1 times [2024-11-22 02:21:00,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:21:00,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734362044] [2024-11-22 02:21:00,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:21:00,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:21:00,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:21:00,376 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2024-11-22 02:21:00,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:21:00,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734362044] [2024-11-22 02:21:00,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734362044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:21:00,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:21:00,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:21:00,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181558769] [2024-11-22 02:21:00,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:21:00,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:21:00,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:21:00,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:21:00,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:21:00,378 INFO L87 Difference]: Start difference. First operand 3429 states and 4028 transitions. Second operand has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:21:00,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:21:00,585 INFO L93 Difference]: Finished difference Result 5329 states and 6235 transitions. [2024-11-22 02:21:00,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:21:00,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2024-11-22 02:21:00,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:21:00,599 INFO L225 Difference]: With dead ends: 5329 [2024-11-22 02:21:00,599 INFO L226 Difference]: Without dead ends: 2305 [2024-11-22 02:21:00,605 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 [2024-11-22 02:21:00,606 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 3 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:21:00,606 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 314 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:21:00,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2305 states. [2024-11-22 02:21:00,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2305 to 2272. [2024-11-22 02:21:00,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2272 states, 2271 states have (on average 1.1501541171290182) internal successors, (2612), 2271 states have internal predecessors, (2612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:21:00,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2272 states to 2272 states and 2612 transitions. [2024-11-22 02:21:00,781 INFO L78 Accepts]: Start accepts. Automaton has 2272 states and 2612 transitions. Word has length 263 [2024-11-22 02:21:00,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:21:00,782 INFO L471 AbstractCegarLoop]: Abstraction has 2272 states and 2612 transitions. [2024-11-22 02:21:00,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.33333333333333) internal successors, (199), 3 states have internal predecessors, (199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:21:00,782 INFO L276 IsEmpty]: Start isEmpty. Operand 2272 states and 2612 transitions. [2024-11-22 02:21:00,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-22 02:21:00,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:21:00,787 INFO L215 NwaCegarLoop]: trace histogram [10, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:21:00,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-22 02:21:00,794 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:21:00,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:21:00,795 INFO L85 PathProgramCache]: Analyzing trace with hash -1759293355, now seen corresponding path program 1 times [2024-11-22 02:21:00,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:21:00,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515223366] [2024-11-22 02:21:00,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:21:00,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:21:00,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:21:00,990 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 286 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-22 02:21:00,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:21:00,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [515223366] [2024-11-22 02:21:00,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [515223366] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:21:00,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:21:00,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 02:21:00,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974914756] [2024-11-22 02:21:00,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:21:00,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 02:21:00,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:21:00,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 02:21:00,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 02:21:00,994 INFO L87 Difference]: Start difference. First operand 2272 states and 2612 transitions. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:21:01,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:21:01,178 INFO L93 Difference]: Finished difference Result 4253 states and 4901 transitions. [2024-11-22 02:21:01,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:21:01,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 271 [2024-11-22 02:21:01,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:21:01,191 INFO L225 Difference]: With dead ends: 4253 [2024-11-22 02:21:01,191 INFO L226 Difference]: Without dead ends: 2273 [2024-11-22 02:21:01,197 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:21:01,198 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 191 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:21:01,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 225 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:21:01,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2273 states. [2024-11-22 02:21:01,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2273 to 2272. [2024-11-22 02:21:01,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2272 states, 2271 states have (on average 1.141347424042272) internal successors, (2592), 2271 states have internal predecessors, (2592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:21:01,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2272 states to 2272 states and 2592 transitions. [2024-11-22 02:21:01,416 INFO L78 Accepts]: Start accepts. Automaton has 2272 states and 2592 transitions. Word has length 271 [2024-11-22 02:21:01,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:21:01,417 INFO L471 AbstractCegarLoop]: Abstraction has 2272 states and 2592 transitions. [2024-11-22 02:21:01,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:21:01,421 INFO L276 IsEmpty]: Start isEmpty. Operand 2272 states and 2592 transitions. [2024-11-22 02:21:01,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-22 02:21:01,423 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:21:01,423 INFO L215 NwaCegarLoop]: trace histogram [10, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:21:01,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-22 02:21:01,424 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:21:01,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:21:01,425 INFO L85 PathProgramCache]: Analyzing trace with hash 550996924, now seen corresponding path program 1 times [2024-11-22 02:21:01,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:21:01,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399698050] [2024-11-22 02:21:01,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:21:01,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:21:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:21:01,475 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 290 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-22 02:21:01,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:21:01,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399698050] [2024-11-22 02:21:01,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399698050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:21:01,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:21:01,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:21:01,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158412387] [2024-11-22 02:21:01,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:21:01,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:21:01,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:21:01,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:21:01,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:21:01,477 INFO L87 Difference]: Start difference. First operand 2272 states and 2592 transitions. Second operand has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:21:01,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:21:01,581 INFO L93 Difference]: Finished difference Result 2676 states and 3041 transitions. [2024-11-22 02:21:01,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:21:01,581 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 273 [2024-11-22 02:21:01,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:21:01,584 INFO L225 Difference]: With dead ends: 2676 [2024-11-22 02:21:01,584 INFO L226 Difference]: Without dead ends: 809 [2024-11-22 02:21:01,587 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 [2024-11-22 02:21:01,587 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 28 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:21:01,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 302 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:21:01,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states. [2024-11-22 02:21:01,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 809. [2024-11-22 02:21:01,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 808 states have (on average 1.103960396039604) internal successors, (892), 808 states have internal predecessors, (892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:21:01,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 892 transitions. [2024-11-22 02:21:01,724 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 892 transitions. Word has length 273 [2024-11-22 02:21:01,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:21:01,725 INFO L471 AbstractCegarLoop]: Abstraction has 809 states and 892 transitions. [2024-11-22 02:21:01,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.66666666666667) internal successors, (245), 3 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:21:01,725 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 892 transitions. [2024-11-22 02:21:01,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2024-11-22 02:21:01,731 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:21:01,731 INFO L215 NwaCegarLoop]: trace histogram [9, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:21:01,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-22 02:21:01,732 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:21:01,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:21:01,732 INFO L85 PathProgramCache]: Analyzing trace with hash 249689584, now seen corresponding path program 1 times [2024-11-22 02:21:01,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:21:01,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043517481] [2024-11-22 02:21:01,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:21:01,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:21:01,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:21:01,790 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-11-22 02:21:01,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:21:01,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043517481] [2024-11-22 02:21:01,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043517481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:21:01,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:21:01,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:21:01,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965375421] [2024-11-22 02:21:01,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:21:01,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:21:01,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:21:01,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:21:01,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:21:01,792 INFO L87 Difference]: Start difference. First operand 809 states and 892 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:21:01,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:21:01,858 INFO L93 Difference]: Finished difference Result 1090 states and 1202 transitions. [2024-11-22 02:21:01,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:21:01,859 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 290 [2024-11-22 02:21:01,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:21:01,861 INFO L225 Difference]: With dead ends: 1090 [2024-11-22 02:21:01,861 INFO L226 Difference]: Without dead ends: 0 [2024-11-22 02:21:01,862 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 [2024-11-22 02:21:01,863 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 3 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:21:01,863 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 283 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:21:01,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-22 02:21:01,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-22 02:21:01,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:21:01,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-22 02:21:01,866 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 290 [2024-11-22 02:21:01,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:21:01,867 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-22 02:21:01,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:21:01,867 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-22 02:21:01,867 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-22 02:21:01,870 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-22 02:21:01,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-22 02:21:01,874 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:21:01,876 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-22 02:21:50,607 WARN L286 SmtUtils]: Spent 48.72s on a formula simplification. DAG size of input: 402 DAG size of output: 504 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-22 02:21:57,942 WARN L286 SmtUtils]: Spent 7.33s on a formula simplification. DAG size of input: 229 DAG size of output: 289 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-22 02:22:13,517 WARN L286 SmtUtils]: Spent 15.57s on a formula simplification. DAG size of input: 290 DAG size of output: 368 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-22 02:22:18,906 WARN L286 SmtUtils]: Spent 5.39s on a formula simplification. DAG size of input: 214 DAG size of output: 277 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)