./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Arbiter.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Arbiter.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash daa141bceaab1dce596dec41c05d7428109f60bb62645942d09e8fdb56f4587f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 11:04:43,550 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 11:04:43,608 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-16 11:04:43,613 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 11:04:43,614 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 11:04:43,632 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 11:04:43,633 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 11:04:43,634 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 11:04:43,635 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 11:04:43,636 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 11:04:43,636 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 11:04:43,636 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 11:04:43,637 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 11:04:43,638 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 11:04:43,639 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 11:04:43,639 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 11:04:43,639 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 11:04:43,639 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 11:04:43,640 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 11:04:43,640 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 11:04:43,640 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 11:04:43,643 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 11:04:43,643 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 11:04:43,643 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 11:04:43,644 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 11:04:43,644 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 11:04:43,644 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 11:04:43,644 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 11:04:43,645 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 11:04:43,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 11:04:43,645 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 11:04:43,645 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 11:04:43,645 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 11:04:43,645 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 11:04:43,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 11:04:43,646 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 11:04:43,646 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 11:04:43,646 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 11:04:43,646 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 11:04:43,646 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> daa141bceaab1dce596dec41c05d7428109f60bb62645942d09e8fdb56f4587f [2024-11-16 11:04:43,846 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 11:04:43,864 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 11:04:43,866 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 11:04:43,867 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 11:04:43,867 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 11:04:43,868 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Arbiter.c [2024-11-16 11:04:45,203 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 11:04:45,413 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 11:04:45,414 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Arbiter.c [2024-11-16 11:04:45,425 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1dd3f444/b3cac4cbf01d4324ae2d9d290e8440ad/FLAGa35c3dd97 [2024-11-16 11:04:45,436 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b1dd3f444/b3cac4cbf01d4324ae2d9d290e8440ad [2024-11-16 11:04:45,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 11:04:45,439 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 11:04:45,440 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 11:04:45,442 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 11:04:45,446 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 11:04:45,446 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:04:45" (1/1) ... [2024-11-16 11:04:45,447 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25b99608 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:45, skipping insertion in model container [2024-11-16 11:04:45,447 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:04:45" (1/1) ... [2024-11-16 11:04:45,489 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 11:04:45,707 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Arbiter.c[1249,1262] [2024-11-16 11:04:45,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 11:04:46,003 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 11:04:46,015 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Arbiter.c[1249,1262] [2024-11-16 11:04:46,072 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 11:04:46,086 INFO L204 MainTranslator]: Completed translation [2024-11-16 11:04:46,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:46 WrapperNode [2024-11-16 11:04:46,086 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 11:04:46,087 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 11:04:46,087 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 11:04:46,087 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 11:04:46,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:46" (1/1) ... [2024-11-16 11:04:46,119 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:46" (1/1) ... [2024-11-16 11:04:46,256 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1672 [2024-11-16 11:04:46,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 11:04:46,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 11:04:46,257 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 11:04:46,258 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 11:04:46,266 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:46" (1/1) ... [2024-11-16 11:04:46,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:46" (1/1) ... [2024-11-16 11:04:46,290 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:46" (1/1) ... [2024-11-16 11:04:46,347 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]. [2024-11-16 11:04:46,347 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:46" (1/1) ... [2024-11-16 11:04:46,348 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:46" (1/1) ... [2024-11-16 11:04:46,385 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:46" (1/1) ... [2024-11-16 11:04:46,392 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:46" (1/1) ... [2024-11-16 11:04:46,408 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:46" (1/1) ... [2024-11-16 11:04:46,419 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:46" (1/1) ... [2024-11-16 11:04:46,439 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 11:04:46,440 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 11:04:46,441 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 11:04:46,441 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 11:04:46,442 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:46" (1/1) ... [2024-11-16 11:04:46,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 11:04:46,456 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 11:04:46,472 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) [2024-11-16 11:04:46,474 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 [2024-11-16 11:04:46,511 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 11:04:46,511 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 11:04:46,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 11:04:46,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 11:04:46,760 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 11:04:46,762 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 11:04:47,984 INFO L? ?]: Removed 1116 outVars from TransFormulas that were not future-live. [2024-11-16 11:04:47,985 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 11:04:48,049 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 11:04:48,050 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 11:04:48,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:04:48 BoogieIcfgContainer [2024-11-16 11:04:48,051 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 11:04:48,052 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 11:04:48,053 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 11:04:48,056 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 11:04:48,056 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:04:45" (1/3) ... [2024-11-16 11:04:48,056 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec5c0f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:04:48, skipping insertion in model container [2024-11-16 11:04:48,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:04:46" (2/3) ... [2024-11-16 11:04:48,057 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ec5c0f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:04:48, skipping insertion in model container [2024-11-16 11:04:48,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 11:04:48" (3/3) ... [2024-11-16 11:04:48,058 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Arbiter.c [2024-11-16 11:04:48,072 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 11:04:48,073 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 11:04:48,132 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 11:04:48,141 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;@7ebf918b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 11:04:48,141 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 11:04:48,146 INFO L276 IsEmpty]: Start isEmpty. Operand has 269 states, 267 states have (on average 1.4906367041198503) internal successors, (398), 268 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:48,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-16 11:04:48,154 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:04:48,155 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:04:48,155 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:04:48,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:04:48,160 INFO L85 PathProgramCache]: Analyzing trace with hash 693390303, now seen corresponding path program 1 times [2024-11-16 11:04:48,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:04:48,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987989413] [2024-11-16 11:04:48,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:04:48,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:04:48,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:04:48,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:04:48,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:04:48,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987989413] [2024-11-16 11:04:48,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1987989413] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:04:48,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:04:48,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 11:04:48,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717384644] [2024-11-16 11:04:48,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:04:48,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 11:04:48,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:04:48,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 11:04:48,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:04:48,979 INFO L87 Difference]: Start difference. First operand has 269 states, 267 states have (on average 1.4906367041198503) internal successors, (398), 268 states have internal predecessors, (398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:49,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:04:49,271 INFO L93 Difference]: Finished difference Result 469 states and 697 transitions. [2024-11-16 11:04:49,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 11:04:49,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2024-11-16 11:04:49,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:04:49,286 INFO L225 Difference]: With dead ends: 469 [2024-11-16 11:04:49,287 INFO L226 Difference]: Without dead ends: 266 [2024-11-16 11:04:49,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:04:49,294 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 0 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:04:49,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 973 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:04:49,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-16 11:04:49,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2024-11-16 11:04:49,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4867924528301886) internal successors, (394), 265 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:49,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 394 transitions. [2024-11-16 11:04:49,347 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 394 transitions. Word has length 64 [2024-11-16 11:04:49,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:04:49,348 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 394 transitions. [2024-11-16 11:04:49,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:49,348 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 394 transitions. [2024-11-16 11:04:49,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-16 11:04:49,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:04:49,350 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:04:49,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 11:04:49,351 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:04:49,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:04:49,351 INFO L85 PathProgramCache]: Analyzing trace with hash 165316535, now seen corresponding path program 1 times [2024-11-16 11:04:49,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:04:49,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919133337] [2024-11-16 11:04:49,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:04:49,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:04:49,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:04:49,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:04:49,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:04:49,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919133337] [2024-11-16 11:04:49,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919133337] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:04:49,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:04:49,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-16 11:04:49,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821166250] [2024-11-16 11:04:49,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:04:49,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 11:04:49,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:04:49,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 11:04:49,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:04:49,812 INFO L87 Difference]: Start difference. First operand 266 states and 394 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:50,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:04:50,021 INFO L93 Difference]: Finished difference Result 468 states and 693 transitions. [2024-11-16 11:04:50,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 11:04:50,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-16 11:04:50,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:04:50,029 INFO L225 Difference]: With dead ends: 468 [2024-11-16 11:04:50,029 INFO L226 Difference]: Without dead ends: 268 [2024-11-16 11:04:50,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 11:04:50,032 INFO L432 NwaCegarLoop]: 326 mSDtfsCounter, 0 mSDsluCounter, 644 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:04:50,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 970 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:04:50,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-11-16 11:04:50,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2024-11-16 11:04:50,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 267 states have (on average 1.4831460674157304) internal successors, (396), 267 states have internal predecessors, (396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:50,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 396 transitions. [2024-11-16 11:04:50,055 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 396 transitions. Word has length 65 [2024-11-16 11:04:50,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:04:50,060 INFO L471 AbstractCegarLoop]: Abstraction has 268 states and 396 transitions. [2024-11-16 11:04:50,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:50,060 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 396 transitions. [2024-11-16 11:04:50,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-16 11:04:50,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:04:50,062 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:04:50,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 11:04:50,062 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:04:50,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:04:50,063 INFO L85 PathProgramCache]: Analyzing trace with hash 577089092, now seen corresponding path program 1 times [2024-11-16 11:04:50,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:04:50,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703247559] [2024-11-16 11:04:50,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:04:50,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:04:50,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:04:50,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:04:50,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:04:50,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703247559] [2024-11-16 11:04:50,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703247559] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:04:50,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:04:50,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:04:50,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343940195] [2024-11-16 11:04:50,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:04:50,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:04:50,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:04:50,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:04:50,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:04:50,930 INFO L87 Difference]: Start difference. First operand 268 states and 396 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:51,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:04:51,118 INFO L93 Difference]: Finished difference Result 475 states and 702 transitions. [2024-11-16 11:04:51,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 11:04:51,119 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2024-11-16 11:04:51,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:04:51,121 INFO L225 Difference]: With dead ends: 475 [2024-11-16 11:04:51,121 INFO L226 Difference]: Without dead ends: 273 [2024-11-16 11:04:51,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:04:51,123 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 1 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:04:51,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1598 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:04:51,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2024-11-16 11:04:51,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 273. [2024-11-16 11:04:51,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 272 states have (on average 1.4779411764705883) internal successors, (402), 272 states have internal predecessors, (402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:51,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 402 transitions. [2024-11-16 11:04:51,130 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 402 transitions. Word has length 66 [2024-11-16 11:04:51,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:04:51,144 INFO L471 AbstractCegarLoop]: Abstraction has 273 states and 402 transitions. [2024-11-16 11:04:51,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:51,145 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 402 transitions. [2024-11-16 11:04:51,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-16 11:04:51,146 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:04:51,146 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:04:51,146 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 11:04:51,146 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:04:51,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:04:51,147 INFO L85 PathProgramCache]: Analyzing trace with hash -880411694, now seen corresponding path program 1 times [2024-11-16 11:04:51,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:04:51,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414756865] [2024-11-16 11:04:51,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:04:51,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:04:51,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:04:51,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:04:51,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:04:51,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414756865] [2024-11-16 11:04:51,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414756865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:04:51,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:04:51,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:04:51,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478319455] [2024-11-16 11:04:51,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:04:51,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:04:51,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:04:51,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:04:51,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:04:51,378 INFO L87 Difference]: Start difference. First operand 273 states and 402 transitions. Second operand has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:51,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:04:51,591 INFO L93 Difference]: Finished difference Result 499 states and 735 transitions. [2024-11-16 11:04:51,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:04:51,592 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-16 11:04:51,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:04:51,593 INFO L225 Difference]: With dead ends: 499 [2024-11-16 11:04:51,593 INFO L226 Difference]: Without dead ends: 292 [2024-11-16 11:04:51,594 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:04:51,595 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 13 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 438 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 439 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 438 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:04:51,598 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1913 Invalid, 439 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 438 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:04:51,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-16 11:04:51,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 292. [2024-11-16 11:04:51,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 291 states have (on average 1.470790378006873) internal successors, (428), 291 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:51,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 428 transitions. [2024-11-16 11:04:51,611 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 428 transitions. Word has length 67 [2024-11-16 11:04:51,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:04:51,612 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 428 transitions. [2024-11-16 11:04:51,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.571428571428571) internal successors, (67), 7 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:51,612 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 428 transitions. [2024-11-16 11:04:51,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-16 11:04:51,613 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:04:51,613 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:04:51,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 11:04:51,614 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:04:51,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:04:51,615 INFO L85 PathProgramCache]: Analyzing trace with hash -2068976755, now seen corresponding path program 1 times [2024-11-16 11:04:51,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:04:51,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777646764] [2024-11-16 11:04:51,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:04:51,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:04:51,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:04:52,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:04:52,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:04:52,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777646764] [2024-11-16 11:04:52,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777646764] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:04:52,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:04:52,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:04:52,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040716591] [2024-11-16 11:04:52,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:04:52,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:04:52,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:04:52,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:04:52,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:04:52,011 INFO L87 Difference]: Start difference. First operand 292 states and 428 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:52,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:04:52,204 INFO L93 Difference]: Finished difference Result 530 states and 776 transitions. [2024-11-16 11:04:52,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 11:04:52,205 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 67 [2024-11-16 11:04:52,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:04:52,206 INFO L225 Difference]: With dead ends: 530 [2024-11-16 11:04:52,206 INFO L226 Difference]: Without dead ends: 304 [2024-11-16 11:04:52,207 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 11:04:52,207 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 354 mSDsluCounter, 953 mSDsCounter, 0 mSdLazyCounter, 293 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:04:52,208 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 1274 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 293 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:04:52,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-11-16 11:04:52,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2024-11-16 11:04:52,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 303 states have (on average 1.4653465346534653) internal successors, (444), 303 states have internal predecessors, (444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:52,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 444 transitions. [2024-11-16 11:04:52,221 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 444 transitions. Word has length 67 [2024-11-16 11:04:52,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:04:52,221 INFO L471 AbstractCegarLoop]: Abstraction has 304 states and 444 transitions. [2024-11-16 11:04:52,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:52,222 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 444 transitions. [2024-11-16 11:04:52,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 11:04:52,222 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:04:52,223 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:04:52,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 11:04:52,223 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:04:52,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:04:52,223 INFO L85 PathProgramCache]: Analyzing trace with hash 913290990, now seen corresponding path program 1 times [2024-11-16 11:04:52,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:04:52,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612711514] [2024-11-16 11:04:52,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:04:52,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:04:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:04:52,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:04:52,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:04:52,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612711514] [2024-11-16 11:04:52,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612711514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:04:52,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:04:52,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:04:52,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209740463] [2024-11-16 11:04:52,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:04:52,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:04:52,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:04:52,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:04:52,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:04:52,410 INFO L87 Difference]: Start difference. First operand 304 states and 444 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:52,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:04:52,839 INFO L93 Difference]: Finished difference Result 714 states and 1038 transitions. [2024-11-16 11:04:52,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:04:52,839 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-16 11:04:52,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:04:52,841 INFO L225 Difference]: With dead ends: 714 [2024-11-16 11:04:52,841 INFO L226 Difference]: Without dead ends: 476 [2024-11-16 11:04:52,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-16 11:04:52,842 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 792 mSDsluCounter, 804 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 792 SdHoareTripleChecker+Valid, 1118 SdHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 11:04:52,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [792 Valid, 1118 Invalid, 451 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 11:04:52,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2024-11-16 11:04:52,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 339. [2024-11-16 11:04:52,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 338 states have (on average 1.4615384615384615) internal successors, (494), 338 states have internal predecessors, (494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:52,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 494 transitions. [2024-11-16 11:04:52,849 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 494 transitions. Word has length 68 [2024-11-16 11:04:52,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:04:52,850 INFO L471 AbstractCegarLoop]: Abstraction has 339 states and 494 transitions. [2024-11-16 11:04:52,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:52,850 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 494 transitions. [2024-11-16 11:04:52,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 11:04:52,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:04:52,851 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:04:52,851 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 11:04:52,851 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:04:52,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:04:52,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1801404648, now seen corresponding path program 1 times [2024-11-16 11:04:52,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:04:52,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161236994] [2024-11-16 11:04:52,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:04:52,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:04:52,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:04:53,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:04:53,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:04:53,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161236994] [2024-11-16 11:04:53,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161236994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:04:53,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:04:53,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:04:53,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913186690] [2024-11-16 11:04:53,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:04:53,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:04:53,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:04:53,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:04:53,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:04:53,019 INFO L87 Difference]: Start difference. First operand 339 states and 494 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:53,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:04:53,155 INFO L93 Difference]: Finished difference Result 614 states and 894 transitions. [2024-11-16 11:04:53,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:04:53,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-16 11:04:53,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:04:53,157 INFO L225 Difference]: With dead ends: 614 [2024-11-16 11:04:53,157 INFO L226 Difference]: Without dead ends: 371 [2024-11-16 11:04:53,157 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:04:53,157 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 12 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 11:04:53,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1291 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 11:04:53,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2024-11-16 11:04:53,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 371. [2024-11-16 11:04:53,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 371 states, 370 states have (on average 1.454054054054054) internal successors, (538), 370 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:53,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 371 states to 371 states and 538 transitions. [2024-11-16 11:04:53,163 INFO L78 Accepts]: Start accepts. Automaton has 371 states and 538 transitions. Word has length 68 [2024-11-16 11:04:53,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:04:53,164 INFO L471 AbstractCegarLoop]: Abstraction has 371 states and 538 transitions. [2024-11-16 11:04:53,164 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:53,164 INFO L276 IsEmpty]: Start isEmpty. Operand 371 states and 538 transitions. [2024-11-16 11:04:53,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-16 11:04:53,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:04:53,164 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:04:53,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 11:04:53,165 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:04:53,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:04:53,165 INFO L85 PathProgramCache]: Analyzing trace with hash 966480317, now seen corresponding path program 1 times [2024-11-16 11:04:53,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:04:53,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787576770] [2024-11-16 11:04:53,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:04:53,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:04:53,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:04:53,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:04:53,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:04:53,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787576770] [2024-11-16 11:04:53,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [787576770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:04:53,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:04:53,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:04:53,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193888794] [2024-11-16 11:04:53,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:04:53,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:04:53,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:04:53,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:04:53,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:04:53,444 INFO L87 Difference]: Start difference. First operand 371 states and 538 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:53,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:04:53,666 INFO L93 Difference]: Finished difference Result 661 states and 958 transitions. [2024-11-16 11:04:53,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 11:04:53,666 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2024-11-16 11:04:53,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:04:53,667 INFO L225 Difference]: With dead ends: 661 [2024-11-16 11:04:53,667 INFO L226 Difference]: Without dead ends: 395 [2024-11-16 11:04:53,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-16 11:04:53,668 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 362 mSDsluCounter, 1270 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1591 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:04:53,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 1591 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:04:53,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-16 11:04:53,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2024-11-16 11:04:53,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 394 states have (on average 1.4467005076142132) internal successors, (570), 394 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:53,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 570 transitions. [2024-11-16 11:04:53,674 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 570 transitions. Word has length 68 [2024-11-16 11:04:53,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:04:53,675 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 570 transitions. [2024-11-16 11:04:53,675 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 7 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:53,675 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 570 transitions. [2024-11-16 11:04:53,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 11:04:53,675 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:04:53,675 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:04:53,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 11:04:53,676 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:04:53,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:04:53,676 INFO L85 PathProgramCache]: Analyzing trace with hash -167758616, now seen corresponding path program 1 times [2024-11-16 11:04:53,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:04:53,676 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377592975] [2024-11-16 11:04:53,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:04:53,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:04:53,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:04:53,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:04:53,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:04:53,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377592975] [2024-11-16 11:04:53,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377592975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:04:53,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:04:53,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:04:53,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334056682] [2024-11-16 11:04:53,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:04:53,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:04:53,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:04:53,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:04:53,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:04:53,835 INFO L87 Difference]: Start difference. First operand 395 states and 570 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:54,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:04:54,054 INFO L93 Difference]: Finished difference Result 791 states and 1136 transitions. [2024-11-16 11:04:54,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:04:54,054 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-16 11:04:54,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:04:54,056 INFO L225 Difference]: With dead ends: 791 [2024-11-16 11:04:54,056 INFO L226 Difference]: Without dead ends: 490 [2024-11-16 11:04:54,057 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-16 11:04:54,057 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 732 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:04:54,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [732 Valid, 937 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:04:54,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-16 11:04:54,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 369. [2024-11-16 11:04:54,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 368 states have (on average 1.440217391304348) internal successors, (530), 368 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:54,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 530 transitions. [2024-11-16 11:04:54,063 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 530 transitions. Word has length 69 [2024-11-16 11:04:54,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:04:54,063 INFO L471 AbstractCegarLoop]: Abstraction has 369 states and 530 transitions. [2024-11-16 11:04:54,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:54,064 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 530 transitions. [2024-11-16 11:04:54,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 11:04:54,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:04:54,064 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:04:54,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 11:04:54,065 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:04:54,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:04:54,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1585757182, now seen corresponding path program 1 times [2024-11-16 11:04:54,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:04:54,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485364742] [2024-11-16 11:04:54,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:04:54,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:04:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:04:54,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:04:54,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:04:54,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485364742] [2024-11-16 11:04:54,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1485364742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:04:54,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:04:54,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-16 11:04:54,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317464656] [2024-11-16 11:04:54,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:04:54,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 11:04:54,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:04:54,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 11:04:54,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-16 11:04:54,460 INFO L87 Difference]: Start difference. First operand 369 states and 530 transitions. Second operand has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:54,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:04:54,754 INFO L93 Difference]: Finished difference Result 664 states and 953 transitions. [2024-11-16 11:04:54,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 11:04:54,754 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-16 11:04:54,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:04:54,756 INFO L225 Difference]: With dead ends: 664 [2024-11-16 11:04:54,756 INFO L226 Difference]: Without dead ends: 381 [2024-11-16 11:04:54,756 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2024-11-16 11:04:54,756 INFO L432 NwaCegarLoop]: 318 mSDtfsCounter, 400 mSDsluCounter, 1891 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 2209 SdHoareTripleChecker+Invalid, 537 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:04:54,757 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 2209 Invalid, 537 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:04:54,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2024-11-16 11:04:54,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 381. [2024-11-16 11:04:54,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 381 states, 380 states have (on average 1.436842105263158) internal successors, (546), 380 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:54,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 381 states to 381 states and 546 transitions. [2024-11-16 11:04:54,762 INFO L78 Accepts]: Start accepts. Automaton has 381 states and 546 transitions. Word has length 69 [2024-11-16 11:04:54,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:04:54,762 INFO L471 AbstractCegarLoop]: Abstraction has 381 states and 546 transitions. [2024-11-16 11:04:54,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.666666666666667) internal successors, (69), 9 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:54,762 INFO L276 IsEmpty]: Start isEmpty. Operand 381 states and 546 transitions. [2024-11-16 11:04:54,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 11:04:54,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:04:54,763 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:04:54,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 11:04:54,763 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:04:54,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:04:54,764 INFO L85 PathProgramCache]: Analyzing trace with hash -585734302, now seen corresponding path program 1 times [2024-11-16 11:04:54,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:04:54,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662379993] [2024-11-16 11:04:54,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:04:54,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:04:54,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:04:54,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:04:54,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:04:54,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662379993] [2024-11-16 11:04:54,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662379993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:04:54,919 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:04:54,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:04:54,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988692933] [2024-11-16 11:04:54,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:04:54,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:04:54,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:04:54,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:04:54,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:04:54,920 INFO L87 Difference]: Start difference. First operand 381 states and 546 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:55,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:04:55,126 INFO L93 Difference]: Finished difference Result 748 states and 1071 transitions. [2024-11-16 11:04:55,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:04:55,126 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-16 11:04:55,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:04:55,127 INFO L225 Difference]: With dead ends: 748 [2024-11-16 11:04:55,128 INFO L226 Difference]: Without dead ends: 441 [2024-11-16 11:04:55,128 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-16 11:04:55,128 INFO L432 NwaCegarLoop]: 314 mSDtfsCounter, 644 mSDsluCounter, 623 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 937 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 11:04:55,129 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [644 Valid, 937 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 11:04:55,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2024-11-16 11:04:55,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 358. [2024-11-16 11:04:55,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 357 states have (on average 1.4397759103641457) internal successors, (514), 357 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:55,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 514 transitions. [2024-11-16 11:04:55,134 INFO L78 Accepts]: Start accepts. Automaton has 358 states and 514 transitions. Word has length 70 [2024-11-16 11:04:55,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:04:55,134 INFO L471 AbstractCegarLoop]: Abstraction has 358 states and 514 transitions. [2024-11-16 11:04:55,134 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:55,135 INFO L276 IsEmpty]: Start isEmpty. Operand 358 states and 514 transitions. [2024-11-16 11:04:55,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-16 11:04:55,135 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:04:55,136 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:04:55,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 11:04:55,136 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:04:55,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:04:55,136 INFO L85 PathProgramCache]: Analyzing trace with hash -302422574, now seen corresponding path program 1 times [2024-11-16 11:04:55,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:04:55,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735705626] [2024-11-16 11:04:55,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:04:55,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:04:55,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:04:56,139 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:04:56,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:04:56,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735705626] [2024-11-16 11:04:56,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735705626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:04:56,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:04:56,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:04:56,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677975598] [2024-11-16 11:04:56,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:04:56,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:04:56,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:04:56,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:04:56,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:04:56,141 INFO L87 Difference]: Start difference. First operand 358 states and 514 transitions. Second operand has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 7 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:56,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:04:56,640 INFO L93 Difference]: Finished difference Result 1030 states and 1490 transitions. [2024-11-16 11:04:56,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 11:04:56,640 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 7 states have internal predecessors, (167), 0 states have call successors, (0), 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 167 [2024-11-16 11:04:56,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:04:56,643 INFO L225 Difference]: With dead ends: 1030 [2024-11-16 11:04:56,643 INFO L226 Difference]: Without dead ends: 758 [2024-11-16 11:04:56,643 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-16 11:04:56,644 INFO L432 NwaCegarLoop]: 492 mSDtfsCounter, 439 mSDsluCounter, 2068 mSDsCounter, 0 mSdLazyCounter, 800 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 2560 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 800 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 11:04:56,644 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 2560 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 800 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 11:04:56,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2024-11-16 11:04:56,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 534. [2024-11-16 11:04:56,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 533 states have (on average 1.450281425891182) internal successors, (773), 533 states have internal predecessors, (773), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:56,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 773 transitions. [2024-11-16 11:04:56,653 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 773 transitions. Word has length 167 [2024-11-16 11:04:56,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:04:56,653 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 773 transitions. [2024-11-16 11:04:56,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 7 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:56,653 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 773 transitions. [2024-11-16 11:04:56,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-16 11:04:56,654 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:04:56,655 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:04:56,655 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 11:04:56,655 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:04:56,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:04:56,655 INFO L85 PathProgramCache]: Analyzing trace with hash 427438753, now seen corresponding path program 1 times [2024-11-16 11:04:56,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:04:56,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005031675] [2024-11-16 11:04:56,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:04:56,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:04:56,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:04:57,579 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:04:57,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:04:57,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005031675] [2024-11-16 11:04:57,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005031675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:04:57,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:04:57,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:04:57,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024734724] [2024-11-16 11:04:57,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:04:57,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:04:57,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:04:57,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:04:57,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:04:57,581 INFO L87 Difference]: Start difference. First operand 534 states and 773 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:58,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:04:58,620 INFO L93 Difference]: Finished difference Result 1495 states and 2173 transitions. [2024-11-16 11:04:58,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 11:04:58,621 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2024-11-16 11:04:58,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:04:58,624 INFO L225 Difference]: With dead ends: 1495 [2024-11-16 11:04:58,624 INFO L226 Difference]: Without dead ends: 1037 [2024-11-16 11:04:58,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 11:04:58,625 INFO L432 NwaCegarLoop]: 462 mSDtfsCounter, 740 mSDsluCounter, 1499 mSDsCounter, 0 mSdLazyCounter, 1930 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 1961 SdHoareTripleChecker+Invalid, 1931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 11:04:58,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 1961 Invalid, 1931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1930 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 11:04:58,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2024-11-16 11:04:58,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 685. [2024-11-16 11:04:58,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 684 states have (on average 1.4532163742690059) internal successors, (994), 684 states have internal predecessors, (994), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:58,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 994 transitions. [2024-11-16 11:04:58,636 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 994 transitions. Word has length 168 [2024-11-16 11:04:58,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:04:58,637 INFO L471 AbstractCegarLoop]: Abstraction has 685 states and 994 transitions. [2024-11-16 11:04:58,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:58,637 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 994 transitions. [2024-11-16 11:04:58,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-16 11:04:58,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:04:58,638 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:04:58,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 11:04:58,639 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:04:58,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:04:58,639 INFO L85 PathProgramCache]: Analyzing trace with hash 799826564, now seen corresponding path program 1 times [2024-11-16 11:04:58,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:04:58,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094513179] [2024-11-16 11:04:58,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:04:58,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:04:58,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:04:59,582 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:04:59,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:04:59,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094513179] [2024-11-16 11:04:59,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094513179] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:04:59,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:04:59,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:04:59,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231169531] [2024-11-16 11:04:59,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:04:59,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:04:59,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:04:59,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:04:59,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:04:59,583 INFO L87 Difference]: Start difference. First operand 685 states and 994 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:59,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:04:59,974 INFO L93 Difference]: Finished difference Result 2225 states and 3246 transitions. [2024-11-16 11:04:59,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 11:04:59,974 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 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 168 [2024-11-16 11:04:59,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:04:59,978 INFO L225 Difference]: With dead ends: 2225 [2024-11-16 11:04:59,978 INFO L226 Difference]: Without dead ends: 1616 [2024-11-16 11:04:59,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-16 11:04:59,979 INFO L432 NwaCegarLoop]: 475 mSDtfsCounter, 419 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 479 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 11:04:59,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 2208 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 479 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 11:04:59,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1616 states. [2024-11-16 11:04:59,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1616 to 1102. [2024-11-16 11:04:59,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1102 states, 1101 states have (on average 1.4632152588555858) internal successors, (1611), 1101 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:59,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1102 states to 1102 states and 1611 transitions. [2024-11-16 11:04:59,996 INFO L78 Accepts]: Start accepts. Automaton has 1102 states and 1611 transitions. Word has length 168 [2024-11-16 11:04:59,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:04:59,996 INFO L471 AbstractCegarLoop]: Abstraction has 1102 states and 1611 transitions. [2024-11-16 11:04:59,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:04:59,996 INFO L276 IsEmpty]: Start isEmpty. Operand 1102 states and 1611 transitions. [2024-11-16 11:04:59,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-16 11:04:59,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:04:59,998 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:04:59,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 11:04:59,998 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:04:59,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:04:59,998 INFO L85 PathProgramCache]: Analyzing trace with hash -544742069, now seen corresponding path program 1 times [2024-11-16 11:04:59,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:04:59,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157305313] [2024-11-16 11:04:59,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:04:59,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:05:00,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:05:01,035 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:05:01,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:05:01,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157305313] [2024-11-16 11:05:01,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157305313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:05:01,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:05:01,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:05:01,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146373213] [2024-11-16 11:05:01,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:05:01,036 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:05:01,036 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:05:01,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:05:01,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:05:01,037 INFO L87 Difference]: Start difference. First operand 1102 states and 1611 transitions. Second operand has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:02,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:05:02,117 INFO L93 Difference]: Finished difference Result 3318 states and 4861 transitions. [2024-11-16 11:05:02,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 11:05:02,118 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-16 11:05:02,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:05:02,123 INFO L225 Difference]: With dead ends: 3318 [2024-11-16 11:05:02,123 INFO L226 Difference]: Without dead ends: 2284 [2024-11-16 11:05:02,124 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 11:05:02,124 INFO L432 NwaCegarLoop]: 446 mSDtfsCounter, 720 mSDsluCounter, 1463 mSDsCounter, 0 mSdLazyCounter, 1940 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 1909 SdHoareTripleChecker+Invalid, 1941 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1940 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-16 11:05:02,125 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [720 Valid, 1909 Invalid, 1941 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1940 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-16 11:05:02,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2284 states. [2024-11-16 11:05:02,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2284 to 1485. [2024-11-16 11:05:02,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1485 states, 1484 states have (on average 1.4676549865229112) internal successors, (2178), 1484 states have internal predecessors, (2178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:02,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1485 states to 1485 states and 2178 transitions. [2024-11-16 11:05:02,146 INFO L78 Accepts]: Start accepts. Automaton has 1485 states and 2178 transitions. Word has length 169 [2024-11-16 11:05:02,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:05:02,146 INFO L471 AbstractCegarLoop]: Abstraction has 1485 states and 2178 transitions. [2024-11-16 11:05:02,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.142857142857142) internal successors, (169), 7 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:02,146 INFO L276 IsEmpty]: Start isEmpty. Operand 1485 states and 2178 transitions. [2024-11-16 11:05:02,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-16 11:05:02,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:05:02,148 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:05:02,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 11:05:02,148 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:05:02,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:05:02,149 INFO L85 PathProgramCache]: Analyzing trace with hash -860272565, now seen corresponding path program 1 times [2024-11-16 11:05:02,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:05:02,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669144076] [2024-11-16 11:05:02,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:05:02,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:05:02,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:05:03,686 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:05:03,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:05:03,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669144076] [2024-11-16 11:05:03,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669144076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:05:03,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:05:03,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:05:03,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207981016] [2024-11-16 11:05:03,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:05:03,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:05:03,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:05:03,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:05:03,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:05:03,689 INFO L87 Difference]: Start difference. First operand 1485 states and 2178 transitions. Second operand has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:04,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:05:04,044 INFO L93 Difference]: Finished difference Result 3046 states and 4472 transitions. [2024-11-16 11:05:04,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 11:05:04,045 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 0 states have call successors, (0), 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 169 [2024-11-16 11:05:04,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:05:04,048 INFO L225 Difference]: With dead ends: 3046 [2024-11-16 11:05:04,049 INFO L226 Difference]: Without dead ends: 1629 [2024-11-16 11:05:04,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:05:04,050 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 332 mSDsluCounter, 783 mSDsCounter, 0 mSdLazyCounter, 519 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 1048 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 519 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 11:05:04,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 1048 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 519 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 11:05:04,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2024-11-16 11:05:04,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1548. [2024-11-16 11:05:04,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1548 states, 1547 states have (on average 1.4602456367162249) internal successors, (2259), 1547 states have internal predecessors, (2259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:04,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1548 states to 1548 states and 2259 transitions. [2024-11-16 11:05:04,076 INFO L78 Accepts]: Start accepts. Automaton has 1548 states and 2259 transitions. Word has length 169 [2024-11-16 11:05:04,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:05:04,080 INFO L471 AbstractCegarLoop]: Abstraction has 1548 states and 2259 transitions. [2024-11-16 11:05:04,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:04,081 INFO L276 IsEmpty]: Start isEmpty. Operand 1548 states and 2259 transitions. [2024-11-16 11:05:04,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-16 11:05:04,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:05:04,083 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:05:04,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 11:05:04,083 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:05:04,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:05:04,088 INFO L85 PathProgramCache]: Analyzing trace with hash 1608181491, now seen corresponding path program 1 times [2024-11-16 11:05:04,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:05:04,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163404022] [2024-11-16 11:05:04,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:05:04,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:05:04,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:05:05,429 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:05:05,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:05:05,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163404022] [2024-11-16 11:05:05,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163404022] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:05:05,430 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:05:05,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:05:05,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659348802] [2024-11-16 11:05:05,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:05:05,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:05:05,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:05:05,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:05:05,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:05:05,432 INFO L87 Difference]: Start difference. First operand 1548 states and 2259 transitions. Second operand has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 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) [2024-11-16 11:05:06,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:05:06,028 INFO L93 Difference]: Finished difference Result 4178 states and 6101 transitions. [2024-11-16 11:05:06,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 11:05:06,028 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 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 170 [2024-11-16 11:05:06,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:05:06,034 INFO L225 Difference]: With dead ends: 4178 [2024-11-16 11:05:06,034 INFO L226 Difference]: Without dead ends: 2484 [2024-11-16 11:05:06,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 11:05:06,037 INFO L432 NwaCegarLoop]: 317 mSDtfsCounter, 1379 mSDsluCounter, 785 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 1102 SdHoareTripleChecker+Invalid, 558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 11:05:06,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1379 Valid, 1102 Invalid, 558 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 11:05:06,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2484 states. [2024-11-16 11:05:06,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2484 to 1582. [2024-11-16 11:05:06,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1582 states, 1581 states have (on average 1.4541429475015812) internal successors, (2299), 1581 states have internal predecessors, (2299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:06,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1582 states to 1582 states and 2299 transitions. [2024-11-16 11:05:06,060 INFO L78 Accepts]: Start accepts. Automaton has 1582 states and 2299 transitions. Word has length 170 [2024-11-16 11:05:06,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:05:06,060 INFO L471 AbstractCegarLoop]: Abstraction has 1582 states and 2299 transitions. [2024-11-16 11:05:06,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.333333333333332) internal successors, (170), 6 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) [2024-11-16 11:05:06,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1582 states and 2299 transitions. [2024-11-16 11:05:06,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-16 11:05:06,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:05:06,063 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:05:06,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 11:05:06,063 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:05:06,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:05:06,063 INFO L85 PathProgramCache]: Analyzing trace with hash 543852459, now seen corresponding path program 1 times [2024-11-16 11:05:06,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:05:06,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752797803] [2024-11-16 11:05:06,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:05:06,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:05:06,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:05:07,247 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:05:07,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:05:07,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752797803] [2024-11-16 11:05:07,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752797803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:05:07,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:05:07,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:05:07,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498674887] [2024-11-16 11:05:07,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:05:07,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:05:07,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:05:07,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:05:07,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:05:07,250 INFO L87 Difference]: Start difference. First operand 1582 states and 2299 transitions. Second operand has 6 states, 6 states have (on average 28.5) internal successors, (171), 6 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:07,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:05:07,802 INFO L93 Difference]: Finished difference Result 4098 states and 5983 transitions. [2024-11-16 11:05:07,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 11:05:07,803 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.5) internal successors, (171), 6 states have internal predecessors, (171), 0 states have call successors, (0), 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 171 [2024-11-16 11:05:07,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:05:07,809 INFO L225 Difference]: With dead ends: 4098 [2024-11-16 11:05:07,810 INFO L226 Difference]: Without dead ends: 2618 [2024-11-16 11:05:07,811 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-16 11:05:07,812 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 799 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 660 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 11:05:07,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 964 Invalid, 663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 660 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 11:05:07,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2618 states. [2024-11-16 11:05:07,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2618 to 1590. [2024-11-16 11:05:07,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1590 states, 1589 states have (on average 1.4537444933920705) internal successors, (2310), 1589 states have internal predecessors, (2310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:07,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 2310 transitions. [2024-11-16 11:05:07,838 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 2310 transitions. Word has length 171 [2024-11-16 11:05:07,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:05:07,838 INFO L471 AbstractCegarLoop]: Abstraction has 1590 states and 2310 transitions. [2024-11-16 11:05:07,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.5) internal successors, (171), 6 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:07,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 2310 transitions. [2024-11-16 11:05:07,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 11:05:07,841 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:05:07,842 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:05:07,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 11:05:07,842 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:05:07,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:05:07,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1653973443, now seen corresponding path program 1 times [2024-11-16 11:05:07,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:05:07,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984101355] [2024-11-16 11:05:07,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:05:07,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:05:08,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:05:09,049 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:05:09,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:05:09,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984101355] [2024-11-16 11:05:09,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984101355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:05:09,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:05:09,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 11:05:09,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333118796] [2024-11-16 11:05:09,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:05:09,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 11:05:09,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:05:09,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 11:05:09,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 11:05:09,052 INFO L87 Difference]: Start difference. First operand 1590 states and 2310 transitions. Second operand has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:09,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:05:09,708 INFO L93 Difference]: Finished difference Result 3414 states and 4956 transitions. [2024-11-16 11:05:09,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 11:05:09,709 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2024-11-16 11:05:09,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:05:09,714 INFO L225 Difference]: With dead ends: 3414 [2024-11-16 11:05:09,714 INFO L226 Difference]: Without dead ends: 1934 [2024-11-16 11:05:09,716 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2024-11-16 11:05:09,717 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 557 mSDsluCounter, 1089 mSDsCounter, 0 mSdLazyCounter, 1074 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 1078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1074 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 11:05:09,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 1390 Invalid, 1078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1074 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 11:05:09,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1934 states. [2024-11-16 11:05:09,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1934 to 1701. [2024-11-16 11:05:09,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1700 states have (on average 1.4488235294117646) internal successors, (2463), 1700 states have internal predecessors, (2463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:09,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2463 transitions. [2024-11-16 11:05:09,747 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2463 transitions. Word has length 172 [2024-11-16 11:05:09,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:05:09,747 INFO L471 AbstractCegarLoop]: Abstraction has 1701 states and 2463 transitions. [2024-11-16 11:05:09,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.5) internal successors, (172), 8 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:09,748 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2463 transitions. [2024-11-16 11:05:09,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-16 11:05:09,752 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:05:09,752 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:05:09,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 11:05:09,753 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:05:09,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:05:09,753 INFO L85 PathProgramCache]: Analyzing trace with hash -779313293, now seen corresponding path program 1 times [2024-11-16 11:05:09,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:05:09,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45564849] [2024-11-16 11:05:09,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:05:09,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:05:10,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:05:11,074 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:05:11,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:05:11,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45564849] [2024-11-16 11:05:11,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45564849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:05:11,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:05:11,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:05:11,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412470298] [2024-11-16 11:05:11,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:05:11,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:05:11,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:05:11,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:05:11,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:05:11,077 INFO L87 Difference]: Start difference. First operand 1701 states and 2463 transitions. Second operand has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:11,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:05:11,649 INFO L93 Difference]: Finished difference Result 4317 states and 6279 transitions. [2024-11-16 11:05:11,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 11:05:11,650 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 0 states have call successors, (0), 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 172 [2024-11-16 11:05:11,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:05:11,656 INFO L225 Difference]: With dead ends: 4317 [2024-11-16 11:05:11,656 INFO L226 Difference]: Without dead ends: 2744 [2024-11-16 11:05:11,658 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-16 11:05:11,658 INFO L432 NwaCegarLoop]: 265 mSDtfsCounter, 826 mSDsluCounter, 696 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 961 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 11:05:11,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 961 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 11:05:11,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2744 states. [2024-11-16 11:05:11,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2744 to 1701. [2024-11-16 11:05:11,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1700 states have (on average 1.4470588235294117) internal successors, (2460), 1700 states have internal predecessors, (2460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:11,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2460 transitions. [2024-11-16 11:05:11,684 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2460 transitions. Word has length 172 [2024-11-16 11:05:11,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:05:11,684 INFO L471 AbstractCegarLoop]: Abstraction has 1701 states and 2460 transitions. [2024-11-16 11:05:11,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.666666666666668) internal successors, (172), 6 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:11,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2460 transitions. [2024-11-16 11:05:11,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-16 11:05:11,686 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:05:11,687 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:05:11,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 11:05:11,687 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:05:11,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:05:11,687 INFO L85 PathProgramCache]: Analyzing trace with hash -106778517, now seen corresponding path program 1 times [2024-11-16 11:05:11,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:05:11,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938568365] [2024-11-16 11:05:11,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:05:11,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:05:13,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:05:13,575 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:05:13,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:05:13,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938568365] [2024-11-16 11:05:13,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [938568365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:05:13,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:05:13,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:05:13,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537354044] [2024-11-16 11:05:13,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:05:13,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:05:13,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:05:13,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:05:13,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:05:13,582 INFO L87 Difference]: Start difference. First operand 1701 states and 2460 transitions. Second operand has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:14,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:05:14,135 INFO L93 Difference]: Finished difference Result 4099 states and 5956 transitions. [2024-11-16 11:05:14,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:05:14,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 0 states have call successors, (0), 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 173 [2024-11-16 11:05:14,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:05:14,141 INFO L225 Difference]: With dead ends: 4099 [2024-11-16 11:05:14,142 INFO L226 Difference]: Without dead ends: 2502 [2024-11-16 11:05:14,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:05:14,149 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 739 mSDsluCounter, 362 mSDsCounter, 0 mSdLazyCounter, 631 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 739 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 631 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 11:05:14,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [739 Valid, 545 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 631 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 11:05:14,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2502 states. [2024-11-16 11:05:14,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2502 to 1701. [2024-11-16 11:05:14,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1700 states have (on average 1.4464705882352942) internal successors, (2459), 1700 states have internal predecessors, (2459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:14,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2459 transitions. [2024-11-16 11:05:14,207 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2459 transitions. Word has length 173 [2024-11-16 11:05:14,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:05:14,208 INFO L471 AbstractCegarLoop]: Abstraction has 1701 states and 2459 transitions. [2024-11-16 11:05:14,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.6) internal successors, (173), 5 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:14,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2459 transitions. [2024-11-16 11:05:14,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-16 11:05:14,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:05:14,215 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:05:14,215 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 11:05:14,215 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:05:14,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:05:14,215 INFO L85 PathProgramCache]: Analyzing trace with hash -267172618, now seen corresponding path program 1 times [2024-11-16 11:05:14,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:05:14,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483367485] [2024-11-16 11:05:14,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:05:14,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:05:15,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:05:16,181 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:05:16,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:05:16,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483367485] [2024-11-16 11:05:16,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483367485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:05:16,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:05:16,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:05:16,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474211437] [2024-11-16 11:05:16,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:05:16,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:05:16,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:05:16,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:05:16,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:05:16,183 INFO L87 Difference]: Start difference. First operand 1701 states and 2459 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:16,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:05:16,770 INFO L93 Difference]: Finished difference Result 4199 states and 6106 transitions. [2024-11-16 11:05:16,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:05:16,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 0 states have call successors, (0), 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 174 [2024-11-16 11:05:16,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:05:16,786 INFO L225 Difference]: With dead ends: 4199 [2024-11-16 11:05:16,789 INFO L226 Difference]: Without dead ends: 2610 [2024-11-16 11:05:16,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:05:16,796 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 767 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 767 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 11:05:16,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [767 Valid, 546 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 11:05:16,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2610 states. [2024-11-16 11:05:16,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2610 to 1701. [2024-11-16 11:05:16,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1700 states have (on average 1.4458823529411764) internal successors, (2458), 1700 states have internal predecessors, (2458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:16,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2458 transitions. [2024-11-16 11:05:16,823 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2458 transitions. Word has length 174 [2024-11-16 11:05:16,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:05:16,823 INFO L471 AbstractCegarLoop]: Abstraction has 1701 states and 2458 transitions. [2024-11-16 11:05:16,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 5 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:16,823 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2458 transitions. [2024-11-16 11:05:16,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-16 11:05:16,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:05:16,826 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:05:16,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 11:05:16,826 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:05:16,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:05:16,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1058950642, now seen corresponding path program 1 times [2024-11-16 11:05:16,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:05:16,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368550142] [2024-11-16 11:05:16,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:05:16,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:05:18,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:05:18,926 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:05:18,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:05:18,927 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368550142] [2024-11-16 11:05:18,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368550142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:05:18,927 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:05:18,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 11:05:18,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003228855] [2024-11-16 11:05:18,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:05:18,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 11:05:18,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:05:18,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 11:05:18,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 11:05:18,928 INFO L87 Difference]: Start difference. First operand 1701 states and 2458 transitions. Second operand has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:19,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:05:19,404 INFO L93 Difference]: Finished difference Result 4291 states and 6246 transitions. [2024-11-16 11:05:19,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 11:05:19,405 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 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 175 [2024-11-16 11:05:19,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:05:19,409 INFO L225 Difference]: With dead ends: 4291 [2024-11-16 11:05:19,410 INFO L226 Difference]: Without dead ends: 2718 [2024-11-16 11:05:19,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:05:19,412 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 795 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 11:05:19,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 546 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 11:05:19,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2718 states. [2024-11-16 11:05:19,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2718 to 1701. [2024-11-16 11:05:19,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1701 states, 1700 states have (on average 1.4441176470588235) internal successors, (2455), 1700 states have internal predecessors, (2455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:19,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1701 states to 1701 states and 2455 transitions. [2024-11-16 11:05:19,433 INFO L78 Accepts]: Start accepts. Automaton has 1701 states and 2455 transitions. Word has length 175 [2024-11-16 11:05:19,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:05:19,434 INFO L471 AbstractCegarLoop]: Abstraction has 1701 states and 2455 transitions. [2024-11-16 11:05:19,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.0) internal successors, (175), 5 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:19,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1701 states and 2455 transitions. [2024-11-16 11:05:19,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 11:05:19,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:05:19,437 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:05:19,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 11:05:19,437 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:05:19,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:05:19,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1191767946, now seen corresponding path program 1 times [2024-11-16 11:05:19,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:05:19,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489736030] [2024-11-16 11:05:19,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:05:19,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:05:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:05:23,803 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:05:23,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:05:23,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489736030] [2024-11-16 11:05:23,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489736030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:05:23,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:05:23,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:05:23,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26449701] [2024-11-16 11:05:23,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:05:23,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:05:23,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:05:23,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:05:23,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:05:23,811 INFO L87 Difference]: Start difference. First operand 1701 states and 2455 transitions. Second operand has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:24,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:05:24,702 INFO L93 Difference]: Finished difference Result 3412 states and 4953 transitions. [2024-11-16 11:05:24,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 11:05:24,703 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2024-11-16 11:05:24,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:05:24,705 INFO L225 Difference]: With dead ends: 3412 [2024-11-16 11:05:24,712 INFO L226 Difference]: Without dead ends: 1872 [2024-11-16 11:05:24,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-16 11:05:24,714 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 678 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-16 11:05:24,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 671 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-16 11:05:24,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1872 states. [2024-11-16 11:05:24,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1872 to 1641. [2024-11-16 11:05:24,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1641 states, 1640 states have (on average 1.4457317073170732) internal successors, (2371), 1640 states have internal predecessors, (2371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:24,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1641 states to 1641 states and 2371 transitions. [2024-11-16 11:05:24,766 INFO L78 Accepts]: Start accepts. Automaton has 1641 states and 2371 transitions. Word has length 176 [2024-11-16 11:05:24,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:05:24,767 INFO L471 AbstractCegarLoop]: Abstraction has 1641 states and 2371 transitions. [2024-11-16 11:05:24,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.333333333333332) internal successors, (176), 6 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:24,768 INFO L276 IsEmpty]: Start isEmpty. Operand 1641 states and 2371 transitions. [2024-11-16 11:05:24,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-16 11:05:24,775 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:05:24,776 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:05:24,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 11:05:24,776 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:05:24,776 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:05:24,776 INFO L85 PathProgramCache]: Analyzing trace with hash -334956109, now seen corresponding path program 1 times [2024-11-16 11:05:24,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:05:24,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087889450] [2024-11-16 11:05:24,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:05:24,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:05:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:05:25,738 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:05:25,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:05:25,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087889450] [2024-11-16 11:05:25,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087889450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:05:25,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:05:25,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:05:25,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917714824] [2024-11-16 11:05:25,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:05:25,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:05:25,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:05:25,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:05:25,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:05:25,741 INFO L87 Difference]: Start difference. First operand 1641 states and 2371 transitions. Second operand has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:26,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:05:26,335 INFO L93 Difference]: Finished difference Result 5518 states and 8024 transitions. [2024-11-16 11:05:26,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 11:05:26,336 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 0 states have call successors, (0), 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 176 [2024-11-16 11:05:26,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:05:26,345 INFO L225 Difference]: With dead ends: 5518 [2024-11-16 11:05:26,345 INFO L226 Difference]: Without dead ends: 4038 [2024-11-16 11:05:26,348 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 11:05:26,348 INFO L432 NwaCegarLoop]: 264 mSDtfsCounter, 784 mSDsluCounter, 977 mSDsCounter, 0 mSdLazyCounter, 1306 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 1241 SdHoareTripleChecker+Invalid, 1308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 11:05:26,348 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 1241 Invalid, 1308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1306 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 11:05:26,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4038 states. [2024-11-16 11:05:26,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4038 to 2860. [2024-11-16 11:05:26,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2860 states, 2859 states have (on average 1.454004896817069) internal successors, (4157), 2859 states have internal predecessors, (4157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:26,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 4157 transitions. [2024-11-16 11:05:26,434 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 4157 transitions. Word has length 176 [2024-11-16 11:05:26,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:05:26,435 INFO L471 AbstractCegarLoop]: Abstraction has 2860 states and 4157 transitions. [2024-11-16 11:05:26,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.142857142857142) internal successors, (176), 7 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:26,435 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 4157 transitions. [2024-11-16 11:05:26,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 11:05:26,437 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:05:26,437 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:05:26,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 11:05:26,437 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:05:26,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:05:26,438 INFO L85 PathProgramCache]: Analyzing trace with hash -2060017462, now seen corresponding path program 1 times [2024-11-16 11:05:26,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:05:26,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662491514] [2024-11-16 11:05:26,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:05:26,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:05:26,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:05:27,407 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:05:27,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:05:27,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662491514] [2024-11-16 11:05:27,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662491514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:05:27,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:05:27,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:05:27,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416487457] [2024-11-16 11:05:27,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:05:27,408 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:05:27,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:05:27,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:05:27,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:05:27,409 INFO L87 Difference]: Start difference. First operand 2860 states and 4157 transitions. Second operand has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 7 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:28,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:05:28,365 INFO L93 Difference]: Finished difference Result 8539 states and 12457 transitions. [2024-11-16 11:05:28,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 11:05:28,366 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 7 states have internal predecessors, (177), 0 states have call successors, (0), 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 177 [2024-11-16 11:05:28,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:05:28,374 INFO L225 Difference]: With dead ends: 8539 [2024-11-16 11:05:28,374 INFO L226 Difference]: Without dead ends: 5893 [2024-11-16 11:05:28,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 11:05:28,378 INFO L432 NwaCegarLoop]: 420 mSDtfsCounter, 678 mSDsluCounter, 1395 mSDsCounter, 0 mSdLazyCounter, 1902 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 1815 SdHoareTripleChecker+Invalid, 1903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-16 11:05:28,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 1815 Invalid, 1903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1902 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-16 11:05:28,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5893 states. [2024-11-16 11:05:28,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5893 to 4335. [2024-11-16 11:05:28,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4335 states, 4334 states have (on average 1.4533917858790955) internal successors, (6299), 4334 states have internal predecessors, (6299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:28,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4335 states to 4335 states and 6299 transitions. [2024-11-16 11:05:28,426 INFO L78 Accepts]: Start accepts. Automaton has 4335 states and 6299 transitions. Word has length 177 [2024-11-16 11:05:28,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:05:28,426 INFO L471 AbstractCegarLoop]: Abstraction has 4335 states and 6299 transitions. [2024-11-16 11:05:28,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 25.285714285714285) internal successors, (177), 7 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:28,427 INFO L276 IsEmpty]: Start isEmpty. Operand 4335 states and 6299 transitions. [2024-11-16 11:05:28,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-16 11:05:28,429 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:05:28,429 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:05:28,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-16 11:05:28,429 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:05:28,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:05:28,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1468841149, now seen corresponding path program 1 times [2024-11-16 11:05:28,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:05:28,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119271894] [2024-11-16 11:05:28,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:05:28,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:05:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:05:31,817 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:05:31,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:05:31,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119271894] [2024-11-16 11:05:31,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119271894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:05:31,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:05:31,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:05:31,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798226266] [2024-11-16 11:05:31,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:05:31,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:05:31,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:05:31,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:05:31,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:05:31,823 INFO L87 Difference]: Start difference. First operand 4335 states and 6299 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 6 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:32,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:05:32,354 INFO L93 Difference]: Finished difference Result 8586 states and 12525 transitions. [2024-11-16 11:05:32,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 11:05:32,355 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 6 states have internal predecessors, (177), 0 states have call successors, (0), 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 177 [2024-11-16 11:05:32,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:05:32,361 INFO L225 Difference]: With dead ends: 8586 [2024-11-16 11:05:32,361 INFO L226 Difference]: Without dead ends: 4422 [2024-11-16 11:05:32,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-16 11:05:32,365 INFO L432 NwaCegarLoop]: 300 mSDtfsCounter, 628 mSDsluCounter, 893 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 628 SdHoareTripleChecker+Valid, 1193 SdHoareTripleChecker+Invalid, 375 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 11:05:32,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [628 Valid, 1193 Invalid, 375 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 11:05:32,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4422 states. [2024-11-16 11:05:32,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4422 to 4239. [2024-11-16 11:05:32,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4239 states, 4238 states have (on average 1.4579990561585654) internal successors, (6179), 4238 states have internal predecessors, (6179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:32,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4239 states to 4239 states and 6179 transitions. [2024-11-16 11:05:32,411 INFO L78 Accepts]: Start accepts. Automaton has 4239 states and 6179 transitions. Word has length 177 [2024-11-16 11:05:32,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:05:32,411 INFO L471 AbstractCegarLoop]: Abstraction has 4239 states and 6179 transitions. [2024-11-16 11:05:32,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 6 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:32,411 INFO L276 IsEmpty]: Start isEmpty. Operand 4239 states and 6179 transitions. [2024-11-16 11:05:32,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2024-11-16 11:05:32,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:05:32,413 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 11:05:32,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-16 11:05:32,413 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:05:32,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:05:32,413 INFO L85 PathProgramCache]: Analyzing trace with hash -48491498, now seen corresponding path program 1 times [2024-11-16 11:05:32,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:05:32,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781467114] [2024-11-16 11:05:32,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:05:32,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:05:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:05:36,183 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:05:36,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:05:36,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781467114] [2024-11-16 11:05:36,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781467114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:05:36,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:05:36,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-16 11:05:36,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745931203] [2024-11-16 11:05:36,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:05:36,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 11:05:36,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:05:36,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 11:05:36,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 11:05:36,185 INFO L87 Difference]: Start difference. First operand 4239 states and 6179 transitions. Second operand has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 6 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) [2024-11-16 11:05:36,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:05:36,803 INFO L93 Difference]: Finished difference Result 8352 states and 12203 transitions. [2024-11-16 11:05:36,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-16 11:05:36,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 6 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 178 [2024-11-16 11:05:36,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:05:36,809 INFO L225 Difference]: With dead ends: 8352 [2024-11-16 11:05:36,809 INFO L226 Difference]: Without dead ends: 4240 [2024-11-16 11:05:36,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-16 11:05:36,813 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 578 mSDsluCounter, 502 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 578 SdHoareTripleChecker+Valid, 671 SdHoareTripleChecker+Invalid, 898 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 11:05:36,813 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [578 Valid, 671 Invalid, 898 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 11:05:36,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4240 states. [2024-11-16 11:05:36,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4240 to 4195. [2024-11-16 11:05:36,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4195 states, 4194 states have (on average 1.460896518836433) internal successors, (6127), 4194 states have internal predecessors, (6127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:36,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4195 states to 4195 states and 6127 transitions. [2024-11-16 11:05:36,851 INFO L78 Accepts]: Start accepts. Automaton has 4195 states and 6127 transitions. Word has length 178 [2024-11-16 11:05:36,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:05:36,851 INFO L471 AbstractCegarLoop]: Abstraction has 4195 states and 6127 transitions. [2024-11-16 11:05:36,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.666666666666668) internal successors, (178), 6 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) [2024-11-16 11:05:36,851 INFO L276 IsEmpty]: Start isEmpty. Operand 4195 states and 6127 transitions. [2024-11-16 11:05:36,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2024-11-16 11:05:36,856 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:05:36,857 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-16 11:05:36,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-16 11:05:36,857 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:05:36,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:05:36,857 INFO L85 PathProgramCache]: Analyzing trace with hash 1802460356, now seen corresponding path program 1 times [2024-11-16 11:05:36,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:05:36,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108984074] [2024-11-16 11:05:36,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:05:36,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:05:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:05:42,594 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:05:42,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:05:42,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108984074] [2024-11-16 11:05:42,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108984074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:05:42,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:05:42,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:05:42,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058269106] [2024-11-16 11:05:42,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:05:42,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:05:42,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:05:42,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:05:42,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:05:42,596 INFO L87 Difference]: Start difference. First operand 4195 states and 6127 transitions. Second operand has 7 states, 7 states have (on average 39.42857142857143) internal successors, (276), 7 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:43,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:05:43,266 INFO L93 Difference]: Finished difference Result 15193 states and 22311 transitions. [2024-11-16 11:05:43,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 11:05:43,267 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 39.42857142857143) internal successors, (276), 7 states have internal predecessors, (276), 0 states have call successors, (0), 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 276 [2024-11-16 11:05:43,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:05:43,278 INFO L225 Difference]: With dead ends: 15193 [2024-11-16 11:05:43,278 INFO L226 Difference]: Without dead ends: 11125 [2024-11-16 11:05:43,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 11:05:43,284 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 877 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 1377 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 1336 SdHoareTripleChecker+Invalid, 1378 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 11:05:43,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 1336 Invalid, 1378 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1377 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 11:05:43,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11125 states. [2024-11-16 11:05:43,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11125 to 6997. [2024-11-16 11:05:43,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6997 states, 6996 states have (on average 1.4621212121212122) internal successors, (10229), 6996 states have internal predecessors, (10229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:43,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6997 states to 6997 states and 10229 transitions. [2024-11-16 11:05:43,366 INFO L78 Accepts]: Start accepts. Automaton has 6997 states and 10229 transitions. Word has length 276 [2024-11-16 11:05:43,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:05:43,366 INFO L471 AbstractCegarLoop]: Abstraction has 6997 states and 10229 transitions. [2024-11-16 11:05:43,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 39.42857142857143) internal successors, (276), 7 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:43,367 INFO L276 IsEmpty]: Start isEmpty. Operand 6997 states and 10229 transitions. [2024-11-16 11:05:43,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2024-11-16 11:05:43,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:05:43,376 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-16 11:05:43,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-16 11:05:43,377 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:05:43,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:05:43,377 INFO L85 PathProgramCache]: Analyzing trace with hash -2023437318, now seen corresponding path program 1 times [2024-11-16 11:05:43,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:05:43,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104167737] [2024-11-16 11:05:43,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:05:43,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:05:49,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:05:49,875 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 156 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:05:49,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:05:49,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104167737] [2024-11-16 11:05:49,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104167737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:05:49,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:05:49,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:05:49,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156728616] [2024-11-16 11:05:49,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:05:49,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:05:49,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:05:49,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:05:49,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:05:49,879 INFO L87 Difference]: Start difference. First operand 6997 states and 10229 transitions. Second operand has 7 states, 7 states have (on average 39.57142857142857) internal successors, (277), 7 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:50,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:05:50,669 INFO L93 Difference]: Finished difference Result 26029 states and 38235 transitions. [2024-11-16 11:05:50,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 11:05:50,670 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 39.57142857142857) internal successors, (277), 7 states have internal predecessors, (277), 0 states have call successors, (0), 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 277 [2024-11-16 11:05:50,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:05:50,741 INFO L225 Difference]: With dead ends: 26029 [2024-11-16 11:05:50,742 INFO L226 Difference]: Without dead ends: 19159 [2024-11-16 11:05:50,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 11:05:50,748 INFO L432 NwaCegarLoop]: 301 mSDtfsCounter, 843 mSDsluCounter, 1080 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 843 SdHoareTripleChecker+Valid, 1381 SdHoareTripleChecker+Invalid, 1405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 11:05:50,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [843 Valid, 1381 Invalid, 1405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 11:05:50,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19159 states. [2024-11-16 11:05:50,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19159 to 11749. [2024-11-16 11:05:50,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11749 states, 11748 states have (on average 1.4600783112019067) internal successors, (17153), 11748 states have internal predecessors, (17153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:50,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11749 states to 11749 states and 17153 transitions. [2024-11-16 11:05:50,896 INFO L78 Accepts]: Start accepts. Automaton has 11749 states and 17153 transitions. Word has length 277 [2024-11-16 11:05:50,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:05:50,896 INFO L471 AbstractCegarLoop]: Abstraction has 11749 states and 17153 transitions. [2024-11-16 11:05:50,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 39.57142857142857) internal successors, (277), 7 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:50,897 INFO L276 IsEmpty]: Start isEmpty. Operand 11749 states and 17153 transitions. [2024-11-16 11:05:50,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-16 11:05:50,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:05:50,916 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-16 11:05:50,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-16 11:05:50,916 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:05:50,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:05:50,917 INFO L85 PathProgramCache]: Analyzing trace with hash 364422094, now seen corresponding path program 1 times [2024-11-16 11:05:50,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:05:50,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639703026] [2024-11-16 11:05:50,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:05:50,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:05:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:05:58,384 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:05:58,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:05:58,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639703026] [2024-11-16 11:05:58,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639703026] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:05:58,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:05:58,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:05:58,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082683354] [2024-11-16 11:05:58,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:05:58,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:05:58,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:05:58,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:05:58,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:05:58,386 INFO L87 Difference]: Start difference. First operand 11749 states and 17153 transitions. Second operand has 7 states, 7 states have (on average 39.714285714285715) internal successors, (278), 7 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:59,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:05:59,221 INFO L93 Difference]: Finished difference Result 44713 states and 65595 transitions. [2024-11-16 11:05:59,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 11:05:59,221 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 39.714285714285715) internal successors, (278), 7 states have internal predecessors, (278), 0 states have call successors, (0), 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 278 [2024-11-16 11:05:59,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:05:59,253 INFO L225 Difference]: With dead ends: 44713 [2024-11-16 11:05:59,253 INFO L226 Difference]: Without dead ends: 33091 [2024-11-16 11:05:59,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 11:05:59,271 INFO L432 NwaCegarLoop]: 312 mSDtfsCounter, 702 mSDsluCounter, 1115 mSDsCounter, 0 mSdLazyCounter, 1432 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 1433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 11:05:59,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 1427 Invalid, 1433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1432 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 11:05:59,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33091 states. [2024-11-16 11:05:59,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33091 to 19561. [2024-11-16 11:05:59,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19561 states, 19560 states have (on average 1.4548568507157464) internal successors, (28457), 19560 states have internal predecessors, (28457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:59,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19561 states to 19561 states and 28457 transitions. [2024-11-16 11:05:59,523 INFO L78 Accepts]: Start accepts. Automaton has 19561 states and 28457 transitions. Word has length 278 [2024-11-16 11:05:59,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:05:59,523 INFO L471 AbstractCegarLoop]: Abstraction has 19561 states and 28457 transitions. [2024-11-16 11:05:59,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 39.714285714285715) internal successors, (278), 7 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:05:59,523 INFO L276 IsEmpty]: Start isEmpty. Operand 19561 states and 28457 transitions. [2024-11-16 11:05:59,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-11-16 11:05:59,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:05:59,552 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-16 11:05:59,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-16 11:05:59,553 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:05:59,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:05:59,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1459280836, now seen corresponding path program 1 times [2024-11-16 11:05:59,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:05:59,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335046526] [2024-11-16 11:05:59,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:05:59,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 11:06:07,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 11:06:08,641 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 11:06:08,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 11:06:08,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335046526] [2024-11-16 11:06:08,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335046526] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 11:06:08,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 11:06:08,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-16 11:06:08,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561258039] [2024-11-16 11:06:08,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 11:06:08,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 11:06:08,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 11:06:08,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 11:06:08,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-16 11:06:08,643 INFO L87 Difference]: Start difference. First operand 19561 states and 28457 transitions. Second operand has 7 states, 7 states have (on average 39.857142857142854) internal successors, (279), 7 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:06:09,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 11:06:09,479 INFO L93 Difference]: Finished difference Result 47461 states and 69279 transitions. [2024-11-16 11:06:09,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 11:06:09,480 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 39.857142857142854) internal successors, (279), 7 states have internal predecessors, (279), 0 states have call successors, (0), 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 279 [2024-11-16 11:06:09,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 11:06:09,507 INFO L225 Difference]: With dead ends: 47461 [2024-11-16 11:06:09,507 INFO L226 Difference]: Without dead ends: 28027 [2024-11-16 11:06:09,526 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-16 11:06:09,527 INFO L432 NwaCegarLoop]: 291 mSDtfsCounter, 673 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 1441 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 1441 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1441 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 11:06:09,527 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [673 Valid, 1343 Invalid, 1441 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1441 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 11:06:09,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28027 states. [2024-11-16 11:06:09,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28027 to 19565. [2024-11-16 11:06:09,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19565 states, 19564 states have (on average 1.4547638519730117) internal successors, (28461), 19564 states have internal predecessors, (28461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:06:09,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19565 states to 19565 states and 28461 transitions. [2024-11-16 11:06:09,759 INFO L78 Accepts]: Start accepts. Automaton has 19565 states and 28461 transitions. Word has length 279 [2024-11-16 11:06:09,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 11:06:09,760 INFO L471 AbstractCegarLoop]: Abstraction has 19565 states and 28461 transitions. [2024-11-16 11:06:09,760 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 39.857142857142854) internal successors, (279), 7 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 11:06:09,760 INFO L276 IsEmpty]: Start isEmpty. Operand 19565 states and 28461 transitions. [2024-11-16 11:06:09,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2024-11-16 11:06:09,779 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 11:06:09,779 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-16 11:06:09,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-16 11:06:09,779 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 11:06:09,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 11:06:09,780 INFO L85 PathProgramCache]: Analyzing trace with hash -1102949034, now seen corresponding path program 1 times [2024-11-16 11:06:09,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 11:06:09,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413263408] [2024-11-16 11:06:09,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 11:06:09,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms