./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_rotate32.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_rotate32.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 d551f1abb3218eb8b1d4d4572d230d291d7b92b1901f2a1ff958c149ef6299de --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 02:07:31,426 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 02:07:31,491 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-20 02:07:31,495 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 02:07:31,497 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 02:07:31,518 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 02:07:31,519 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 02:07:31,519 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 02:07:31,520 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 02:07:31,521 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 02:07:31,522 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 02:07:31,522 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 02:07:31,522 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 02:07:31,523 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 02:07:31,523 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 02:07:31,525 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 02:07:31,525 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 02:07:31,526 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 02:07:31,526 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 02:07:31,526 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 02:07:31,526 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 02:07:31,526 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 02:07:31,526 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 02:07:31,527 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 02:07:31,527 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 02:07:31,527 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 02:07:31,527 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 02:07:31,527 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 02:07:31,527 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 02:07:31,527 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 02:07:31,528 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 02:07:31,528 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 02:07:31,528 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 02:07:31,528 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 02:07:31,528 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 02:07:31,528 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 02:07:31,528 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 02:07:31,528 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 02:07:31,529 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 02:07:31,529 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d551f1abb3218eb8b1d4d4572d230d291d7b92b1901f2a1ff958c149ef6299de [2024-11-20 02:07:31,715 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 02:07:31,731 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 02:07:31,733 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 02:07:31,734 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 02:07:31,735 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 02:07:31,736 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_rotate32.c [2024-11-20 02:07:32,957 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 02:07:33,129 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 02:07:33,130 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_rotate32.c [2024-11-20 02:07:33,136 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80e9b2722/d6f40307cac54248beea3d09642a9a3f/FLAG2de631693 [2024-11-20 02:07:33,536 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80e9b2722/d6f40307cac54248beea3d09642a9a3f [2024-11-20 02:07:33,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 02:07:33,541 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 02:07:33,542 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 02:07:33,543 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 02:07:33,547 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 02:07:33,547 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:07:33" (1/1) ... [2024-11-20 02:07:33,548 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6767b32d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:33, skipping insertion in model container [2024-11-20 02:07:33,548 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 02:07:33" (1/1) ... [2024-11-20 02:07:33,571 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 02:07:33,709 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.vis_QF_BV_rotate32.c[1258,1271] [2024-11-20 02:07:33,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 02:07:33,769 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 02:07:33,778 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.vis_QF_BV_rotate32.c[1258,1271] [2024-11-20 02:07:33,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 02:07:33,818 INFO L204 MainTranslator]: Completed translation [2024-11-20 02:07:33,819 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:33 WrapperNode [2024-11-20 02:07:33,819 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 02:07:33,821 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 02:07:33,821 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 02:07:33,823 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 02:07:33,829 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:33" (1/1) ... [2024-11-20 02:07:33,843 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:33" (1/1) ... [2024-11-20 02:07:33,877 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 319 [2024-11-20 02:07:33,877 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 02:07:33,878 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 02:07:33,878 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 02:07:33,878 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 02:07:33,890 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:33" (1/1) ... [2024-11-20 02:07:33,890 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:33" (1/1) ... [2024-11-20 02:07:33,895 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:33" (1/1) ... [2024-11-20 02:07:33,922 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]. [2024-11-20 02:07:33,922 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:33" (1/1) ... [2024-11-20 02:07:33,923 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:33" (1/1) ... [2024-11-20 02:07:33,937 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:33" (1/1) ... [2024-11-20 02:07:33,945 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:33" (1/1) ... [2024-11-20 02:07:33,948 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:33" (1/1) ... [2024-11-20 02:07:33,951 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:33" (1/1) ... [2024-11-20 02:07:33,956 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 02:07:33,957 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 02:07:33,957 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 02:07:33,958 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 02:07:33,958 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:33" (1/1) ... [2024-11-20 02:07:33,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 02:07:33,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 02:07:33,992 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) [2024-11-20 02:07:33,995 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 [2024-11-20 02:07:34,035 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 02:07:34,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 02:07:34,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 02:07:34,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 02:07:34,123 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 02:07:34,125 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 02:07:34,521 INFO L? ?]: Removed 172 outVars from TransFormulas that were not future-live. [2024-11-20 02:07:34,522 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 02:07:34,537 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 02:07:34,537 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 02:07:34,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:07:34 BoogieIcfgContainer [2024-11-20 02:07:34,538 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 02:07:34,541 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 02:07:34,541 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 02:07:34,544 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 02:07:34,544 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 02:07:33" (1/3) ... [2024-11-20 02:07:34,545 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c144a61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:07:34, skipping insertion in model container [2024-11-20 02:07:34,545 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 02:07:33" (2/3) ... [2024-11-20 02:07:34,546 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c144a61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 02:07:34, skipping insertion in model container [2024-11-20 02:07:34,546 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 02:07:34" (3/3) ... [2024-11-20 02:07:34,547 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_rotate32.c [2024-11-20 02:07:34,564 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 02:07:34,565 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 02:07:34,612 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 02:07:34,617 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;@5284c55d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 02:07:34,617 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 02:07:34,621 INFO L276 IsEmpty]: Start isEmpty. Operand has 90 states, 88 states have (on average 1.4886363636363635) internal successors, (131), 89 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:34,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-20 02:07:34,628 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:34,629 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:07:34,629 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:34,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:34,637 INFO L85 PathProgramCache]: Analyzing trace with hash -829897697, now seen corresponding path program 1 times [2024-11-20 02:07:34,645 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:34,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [634749368] [2024-11-20 02:07:34,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:34,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:35,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:35,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:35,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [634749368] [2024-11-20 02:07:35,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [634749368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:35,048 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:35,048 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 02:07:35,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552817592] [2024-11-20 02:07:35,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:35,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 02:07:35,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:35,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 02:07:35,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 02:07:35,097 INFO L87 Difference]: Start difference. First operand has 90 states, 88 states have (on average 1.4886363636363635) internal successors, (131), 89 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:35,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:35,189 INFO L93 Difference]: Finished difference Result 169 states and 249 transitions. [2024-11-20 02:07:35,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 02:07:35,192 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 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 13 [2024-11-20 02:07:35,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:35,201 INFO L225 Difference]: With dead ends: 169 [2024-11-20 02:07:35,201 INFO L226 Difference]: Without dead ends: 89 [2024-11-20 02:07:35,204 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 [2024-11-20 02:07:35,209 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:35,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 369 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:07:35,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-20 02:07:35,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-20 02:07:35,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 88 states have (on average 1.4659090909090908) internal successors, (129), 88 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:35,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 129 transitions. [2024-11-20 02:07:35,245 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 129 transitions. Word has length 13 [2024-11-20 02:07:35,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:35,245 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 129 transitions. [2024-11-20 02:07:35,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:35,245 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 129 transitions. [2024-11-20 02:07:35,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-20 02:07:35,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:35,246 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:07:35,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 02:07:35,246 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:35,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:35,248 INFO L85 PathProgramCache]: Analyzing trace with hash 44670374, now seen corresponding path program 1 times [2024-11-20 02:07:35,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:35,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673628390] [2024-11-20 02:07:35,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:35,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:35,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:35,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:35,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:35,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673628390] [2024-11-20 02:07:35,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673628390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:35,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:35,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 02:07:35,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606949086] [2024-11-20 02:07:35,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:35,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 02:07:35,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:35,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 02:07:35,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 02:07:35,343 INFO L87 Difference]: Start difference. First operand 89 states and 129 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:35,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:35,365 INFO L93 Difference]: Finished difference Result 170 states and 247 transitions. [2024-11-20 02:07:35,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 02:07:35,365 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 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 14 [2024-11-20 02:07:35,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:35,366 INFO L225 Difference]: With dead ends: 170 [2024-11-20 02:07:35,366 INFO L226 Difference]: Without dead ends: 91 [2024-11-20 02:07:35,367 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 [2024-11-20 02:07:35,368 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 240 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:35,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 365 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:35,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-11-20 02:07:35,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-11-20 02:07:35,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.4555555555555555) internal successors, (131), 90 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:35,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 131 transitions. [2024-11-20 02:07:35,375 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 131 transitions. Word has length 14 [2024-11-20 02:07:35,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:35,376 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 131 transitions. [2024-11-20 02:07:35,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:35,376 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 131 transitions. [2024-11-20 02:07:35,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-20 02:07:35,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:35,377 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:07:35,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 02:07:35,377 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:35,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:35,378 INFO L85 PathProgramCache]: Analyzing trace with hash 286815704, now seen corresponding path program 1 times [2024-11-20 02:07:35,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:35,378 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130055367] [2024-11-20 02:07:35,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:35,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:35,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:35,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:35,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:35,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130055367] [2024-11-20 02:07:35,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130055367] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:35,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:35,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 02:07:35,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033900028] [2024-11-20 02:07:35,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:35,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 02:07:35,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:35,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 02:07:35,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:07:35,586 INFO L87 Difference]: Start difference. First operand 91 states and 131 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:35,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:35,625 INFO L93 Difference]: Finished difference Result 174 states and 251 transitions. [2024-11-20 02:07:35,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:07:35,628 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 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 15 [2024-11-20 02:07:35,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:35,629 INFO L225 Difference]: With dead ends: 174 [2024-11-20 02:07:35,629 INFO L226 Difference]: Without dead ends: 93 [2024-11-20 02:07:35,630 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 [2024-11-20 02:07:35,631 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 8 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:35,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 476 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:35,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2024-11-20 02:07:35,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2024-11-20 02:07:35,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.4456521739130435) internal successors, (133), 92 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:35,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 133 transitions. [2024-11-20 02:07:35,637 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 133 transitions. Word has length 15 [2024-11-20 02:07:35,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:35,637 INFO L471 AbstractCegarLoop]: Abstraction has 93 states and 133 transitions. [2024-11-20 02:07:35,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:35,638 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 133 transitions. [2024-11-20 02:07:35,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-20 02:07:35,639 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:35,641 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:07:35,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 02:07:35,641 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:35,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:35,642 INFO L85 PathProgramCache]: Analyzing trace with hash -540684496, now seen corresponding path program 1 times [2024-11-20 02:07:35,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:35,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775435935] [2024-11-20 02:07:35,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:35,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:35,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:36,135 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:36,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:36,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775435935] [2024-11-20 02:07:36,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775435935] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 02:07:36,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141627393] [2024-11-20 02:07:36,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:36,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:07:36,140 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 02:07:36,145 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 02:07:36,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 02:07:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:36,300 INFO L255 TraceCheckSpWp]: Trace formula consists of 367 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-20 02:07:36,311 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 02:07:36,652 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:36,652 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 02:07:37,147 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:37,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141627393] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 02:07:37,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 02:07:37,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 9, 10] total 21 [2024-11-20 02:07:37,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882955984] [2024-11-20 02:07:37,150 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 02:07:37,150 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-20 02:07:37,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:37,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-20 02:07:37,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=307, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:07:37,152 INFO L87 Difference]: Start difference. First operand 93 states and 133 transitions. Second operand has 21 states, 21 states have (on average 7.095238095238095) internal successors, (149), 21 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:37,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:37,357 INFO L93 Difference]: Finished difference Result 177 states and 254 transitions. [2024-11-20 02:07:37,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 02:07:37,357 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 7.095238095238095) internal successors, (149), 21 states have internal predecessors, (149), 0 states have call successors, (0), 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 54 [2024-11-20 02:07:37,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:37,359 INFO L225 Difference]: With dead ends: 177 [2024-11-20 02:07:37,359 INFO L226 Difference]: Without dead ends: 96 [2024-11-20 02:07:37,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:07:37,360 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 261 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 290 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:37,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 713 Invalid, 290 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:07:37,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-20 02:07:37,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2024-11-20 02:07:37,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 1.4408602150537635) internal successors, (134), 93 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:37,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 134 transitions. [2024-11-20 02:07:37,367 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 134 transitions. Word has length 54 [2024-11-20 02:07:37,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:37,367 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 134 transitions. [2024-11-20 02:07:37,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 7.095238095238095) internal successors, (149), 21 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:37,367 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 134 transitions. [2024-11-20 02:07:37,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-20 02:07:37,369 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:37,369 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:37,379 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 02:07:37,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:07:37,574 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:37,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:37,575 INFO L85 PathProgramCache]: Analyzing trace with hash -407762765, now seen corresponding path program 1 times [2024-11-20 02:07:37,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:37,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408982091] [2024-11-20 02:07:37,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:37,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:37,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:38,633 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:38,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:38,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408982091] [2024-11-20 02:07:38,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408982091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:38,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:38,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-20 02:07:38,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382473089] [2024-11-20 02:07:38,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:38,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-20 02:07:38,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:38,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-20 02:07:38,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:07:38,636 INFO L87 Difference]: Start difference. First operand 94 states and 134 transitions. Second operand has 21 states, 21 states have (on average 2.619047619047619) internal successors, (55), 21 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:38,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:38,862 INFO L93 Difference]: Finished difference Result 326 states and 471 transitions. [2024-11-20 02:07:38,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-20 02:07:38,863 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.619047619047619) internal successors, (55), 21 states have internal predecessors, (55), 0 states have call successors, (0), 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 55 [2024-11-20 02:07:38,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:38,866 INFO L225 Difference]: With dead ends: 326 [2024-11-20 02:07:38,867 INFO L226 Difference]: Without dead ends: 242 [2024-11-20 02:07:38,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=345, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:07:38,870 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 237 mSDsluCounter, 1326 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 1439 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:38,873 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 1439 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:07:38,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-20 02:07:38,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 151. [2024-11-20 02:07:38,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 150 states have (on average 1.4333333333333333) internal successors, (215), 150 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:38,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 215 transitions. [2024-11-20 02:07:38,888 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 215 transitions. Word has length 55 [2024-11-20 02:07:38,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:38,888 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 215 transitions. [2024-11-20 02:07:38,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.619047619047619) internal successors, (55), 21 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:38,888 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 215 transitions. [2024-11-20 02:07:38,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-20 02:07:38,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:38,889 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:07:38,889 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 02:07:38,890 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:38,890 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:38,890 INFO L85 PathProgramCache]: Analyzing trace with hash 905572452, now seen corresponding path program 1 times [2024-11-20 02:07:38,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:38,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364438875] [2024-11-20 02:07:38,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:38,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:38,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:39,909 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:39,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:39,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364438875] [2024-11-20 02:07:39,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364438875] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:39,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:39,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-20 02:07:39,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224618986] [2024-11-20 02:07:39,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:39,910 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-20 02:07:39,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:39,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-20 02:07:39,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-11-20 02:07:39,911 INFO L87 Difference]: Start difference. First operand 151 states and 215 transitions. Second operand has 20 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:40,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:40,215 INFO L93 Difference]: Finished difference Result 437 states and 633 transitions. [2024-11-20 02:07:40,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-20 02:07:40,215 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-20 02:07:40,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:40,217 INFO L225 Difference]: With dead ends: 437 [2024-11-20 02:07:40,217 INFO L226 Difference]: Without dead ends: 326 [2024-11-20 02:07:40,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-11-20 02:07:40,218 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 199 mSDsluCounter, 1247 mSDsCounter, 0 mSdLazyCounter, 568 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 1346 SdHoareTripleChecker+Invalid, 569 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 568 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:40,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 1346 Invalid, 569 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 568 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 02:07:40,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2024-11-20 02:07:40,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 205. [2024-11-20 02:07:40,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.4411764705882353) internal successors, (294), 204 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:40,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 294 transitions. [2024-11-20 02:07:40,226 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 294 transitions. Word has length 56 [2024-11-20 02:07:40,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:40,226 INFO L471 AbstractCegarLoop]: Abstraction has 205 states and 294 transitions. [2024-11-20 02:07:40,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:40,227 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 294 transitions. [2024-11-20 02:07:40,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-20 02:07:40,228 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:40,228 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:07:40,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 02:07:40,228 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:40,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:40,229 INFO L85 PathProgramCache]: Analyzing trace with hash 970691691, now seen corresponding path program 1 times [2024-11-20 02:07:40,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:40,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287438402] [2024-11-20 02:07:40,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:40,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:41,127 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:41,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:41,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287438402] [2024-11-20 02:07:41,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287438402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:41,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:41,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-20 02:07:41,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438550712] [2024-11-20 02:07:41,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:41,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-20 02:07:41,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:41,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-20 02:07:41,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-11-20 02:07:41,131 INFO L87 Difference]: Start difference. First operand 205 states and 294 transitions. Second operand has 20 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:41,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:41,418 INFO L93 Difference]: Finished difference Result 536 states and 778 transitions. [2024-11-20 02:07:41,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-20 02:07:41,419 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-20 02:07:41,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:41,421 INFO L225 Difference]: With dead ends: 536 [2024-11-20 02:07:41,421 INFO L226 Difference]: Without dead ends: 413 [2024-11-20 02:07:41,422 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-11-20 02:07:41,422 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 198 mSDsluCounter, 1158 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 1264 SdHoareTripleChecker+Invalid, 530 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:41,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 1264 Invalid, 530 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 02:07:41,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-11-20 02:07:41,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 259. [2024-11-20 02:07:41,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 258 states have (on average 1.445736434108527) internal successors, (373), 258 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:41,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 373 transitions. [2024-11-20 02:07:41,430 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 373 transitions. Word has length 56 [2024-11-20 02:07:41,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:41,430 INFO L471 AbstractCegarLoop]: Abstraction has 259 states and 373 transitions. [2024-11-20 02:07:41,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:41,430 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 373 transitions. [2024-11-20 02:07:41,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-20 02:07:41,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:41,432 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:07:41,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 02:07:41,432 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:41,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:41,432 INFO L85 PathProgramCache]: Analyzing trace with hash -874229070, now seen corresponding path program 1 times [2024-11-20 02:07:41,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:41,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302643687] [2024-11-20 02:07:41,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:41,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:41,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:41,909 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:41,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:41,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302643687] [2024-11-20 02:07:41,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302643687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:41,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:41,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 02:07:41,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103666675] [2024-11-20 02:07:41,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:41,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 02:07:41,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:41,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 02:07:41,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2024-11-20 02:07:41,912 INFO L87 Difference]: Start difference. First operand 259 states and 373 transitions. Second operand has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:42,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:42,132 INFO L93 Difference]: Finished difference Result 562 states and 819 transitions. [2024-11-20 02:07:42,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 02:07:42,133 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-20 02:07:42,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:42,134 INFO L225 Difference]: With dead ends: 562 [2024-11-20 02:07:42,134 INFO L226 Difference]: Without dead ends: 478 [2024-11-20 02:07:42,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-20 02:07:42,135 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 219 mSDsluCounter, 1389 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 219 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:42,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [219 Valid, 1617 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:07:42,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-20 02:07:42,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 303. [2024-11-20 02:07:42,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 302 states have (on average 1.4536423841059603) internal successors, (439), 302 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:42,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 439 transitions. [2024-11-20 02:07:42,142 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 439 transitions. Word has length 56 [2024-11-20 02:07:42,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:42,142 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 439 transitions. [2024-11-20 02:07:42,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.3076923076923075) internal successors, (56), 13 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:42,143 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 439 transitions. [2024-11-20 02:07:42,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-20 02:07:42,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:42,144 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:07:42,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 02:07:42,144 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:42,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:42,145 INFO L85 PathProgramCache]: Analyzing trace with hash -21587143, now seen corresponding path program 1 times [2024-11-20 02:07:42,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:42,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337989082] [2024-11-20 02:07:42,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:42,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:42,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:43,002 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:43,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:43,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337989082] [2024-11-20 02:07:43,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337989082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:43,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:43,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-20 02:07:43,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852260626] [2024-11-20 02:07:43,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:43,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-20 02:07:43,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:43,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-20 02:07:43,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:07:43,005 INFO L87 Difference]: Start difference. First operand 303 states and 439 transitions. Second operand has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:43,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:43,209 INFO L93 Difference]: Finished difference Result 658 states and 960 transitions. [2024-11-20 02:07:43,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-20 02:07:43,209 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-20 02:07:43,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:43,211 INFO L225 Difference]: With dead ends: 658 [2024-11-20 02:07:43,211 INFO L226 Difference]: Without dead ends: 516 [2024-11-20 02:07:43,212 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:07:43,212 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 163 mSDsluCounter, 1674 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1792 SdHoareTripleChecker+Invalid, 389 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:43,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 1792 Invalid, 389 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:07:43,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2024-11-20 02:07:43,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 399. [2024-11-20 02:07:43,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 398 states have (on average 1.4597989949748744) internal successors, (581), 398 states have internal predecessors, (581), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:43,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 581 transitions. [2024-11-20 02:07:43,219 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 581 transitions. Word has length 56 [2024-11-20 02:07:43,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:43,219 INFO L471 AbstractCegarLoop]: Abstraction has 399 states and 581 transitions. [2024-11-20 02:07:43,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.6666666666666665) internal successors, (56), 21 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:43,219 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 581 transitions. [2024-11-20 02:07:43,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-20 02:07:43,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:43,221 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:43,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-20 02:07:43,221 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:43,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:43,221 INFO L85 PathProgramCache]: Analyzing trace with hash -2093742992, now seen corresponding path program 1 times [2024-11-20 02:07:43,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:43,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995812699] [2024-11-20 02:07:43,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:43,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:43,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:43,539 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:43,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:43,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995812699] [2024-11-20 02:07:43,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995812699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:43,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:43,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 02:07:43,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3724030] [2024-11-20 02:07:43,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:43,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 02:07:43,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:43,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 02:07:43,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-20 02:07:43,541 INFO L87 Difference]: Start difference. First operand 399 states and 581 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:43,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:43,580 INFO L93 Difference]: Finished difference Result 697 states and 1017 transitions. [2024-11-20 02:07:43,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 02:07:43,580 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-20 02:07:43,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:43,582 INFO L225 Difference]: With dead ends: 697 [2024-11-20 02:07:43,582 INFO L226 Difference]: Without dead ends: 461 [2024-11-20 02:07:43,582 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-20 02:07:43,583 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 59 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 747 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:43,584 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 747 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:43,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461 states. [2024-11-20 02:07:43,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461 to 437. [2024-11-20 02:07:43,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 437 states, 436 states have (on average 1.4495412844036697) internal successors, (632), 436 states have internal predecessors, (632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:43,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 632 transitions. [2024-11-20 02:07:43,591 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 632 transitions. Word has length 57 [2024-11-20 02:07:43,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:43,591 INFO L471 AbstractCegarLoop]: Abstraction has 437 states and 632 transitions. [2024-11-20 02:07:43,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:43,591 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 632 transitions. [2024-11-20 02:07:43,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-20 02:07:43,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:43,594 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:43,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 02:07:43,594 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:43,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:43,595 INFO L85 PathProgramCache]: Analyzing trace with hash 380642882, now seen corresponding path program 1 times [2024-11-20 02:07:43,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:43,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367202936] [2024-11-20 02:07:43,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:43,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:43,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:44,338 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:44,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:44,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367202936] [2024-11-20 02:07:44,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1367202936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:44,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:44,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-20 02:07:44,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664020496] [2024-11-20 02:07:44,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:44,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-20 02:07:44,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:44,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-20 02:07:44,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:07:44,341 INFO L87 Difference]: Start difference. First operand 437 states and 632 transitions. Second operand has 22 states, 22 states have (on average 2.590909090909091) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:44,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:44,504 INFO L93 Difference]: Finished difference Result 814 states and 1175 transitions. [2024-11-20 02:07:44,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-20 02:07:44,505 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.590909090909091) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-20 02:07:44,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:44,507 INFO L225 Difference]: With dead ends: 814 [2024-11-20 02:07:44,507 INFO L226 Difference]: Without dead ends: 644 [2024-11-20 02:07:44,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:07:44,508 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 164 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:44,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 1133 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:07:44,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2024-11-20 02:07:44,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 501. [2024-11-20 02:07:44,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 500 states have (on average 1.442) internal successors, (721), 500 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:44,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 721 transitions. [2024-11-20 02:07:44,524 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 721 transitions. Word has length 57 [2024-11-20 02:07:44,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:44,524 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 721 transitions. [2024-11-20 02:07:44,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.590909090909091) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:44,525 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 721 transitions. [2024-11-20 02:07:44,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-20 02:07:44,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:44,526 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:44,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 02:07:44,526 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:44,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:44,527 INFO L85 PathProgramCache]: Analyzing trace with hash -102058697, now seen corresponding path program 1 times [2024-11-20 02:07:44,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:44,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614376166] [2024-11-20 02:07:44,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:44,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:44,846 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:44,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:44,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614376166] [2024-11-20 02:07:44,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614376166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:44,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:44,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 02:07:44,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295538161] [2024-11-20 02:07:44,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:44,848 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 02:07:44,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:44,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 02:07:44,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:07:44,850 INFO L87 Difference]: Start difference. First operand 501 states and 721 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:44,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:44,889 INFO L93 Difference]: Finished difference Result 739 states and 1065 transitions. [2024-11-20 02:07:44,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 02:07:44,890 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-20 02:07:44,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:44,891 INFO L225 Difference]: With dead ends: 739 [2024-11-20 02:07:44,891 INFO L226 Difference]: Without dead ends: 490 [2024-11-20 02:07:44,892 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:07:44,892 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 47 mSDsluCounter, 496 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:44,893 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 619 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:44,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-20 02:07:44,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 468. [2024-11-20 02:07:44,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 467 states have (on average 1.430406852248394) internal successors, (668), 467 states have internal predecessors, (668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:44,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 668 transitions. [2024-11-20 02:07:44,900 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 668 transitions. Word has length 57 [2024-11-20 02:07:44,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:44,900 INFO L471 AbstractCegarLoop]: Abstraction has 468 states and 668 transitions. [2024-11-20 02:07:44,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:44,901 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 668 transitions. [2024-11-20 02:07:44,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-20 02:07:44,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:44,902 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:44,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 02:07:44,902 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:44,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:44,903 INFO L85 PathProgramCache]: Analyzing trace with hash 41288972, now seen corresponding path program 1 times [2024-11-20 02:07:44,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:44,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247798600] [2024-11-20 02:07:44,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:44,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:44,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:45,766 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:45,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:45,767 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247798600] [2024-11-20 02:07:45,767 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247798600] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:45,767 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:45,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-20 02:07:45,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1362132055] [2024-11-20 02:07:45,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:45,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-20 02:07:45,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:45,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-20 02:07:45,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:07:45,769 INFO L87 Difference]: Start difference. First operand 468 states and 668 transitions. Second operand has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 21 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:46,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:46,035 INFO L93 Difference]: Finished difference Result 850 states and 1223 transitions. [2024-11-20 02:07:46,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-20 02:07:46,035 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 21 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-20 02:07:46,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:46,037 INFO L225 Difference]: With dead ends: 850 [2024-11-20 02:07:46,037 INFO L226 Difference]: Without dead ends: 655 [2024-11-20 02:07:46,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:07:46,039 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 184 mSDsluCounter, 1009 mSDsCounter, 0 mSdLazyCounter, 513 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 184 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 515 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:46,039 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [184 Valid, 1104 Invalid, 515 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 513 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:07:46,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2024-11-20 02:07:46,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 487. [2024-11-20 02:07:46,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 486 states have (on average 1.4300411522633745) internal successors, (695), 486 states have internal predecessors, (695), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:46,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 695 transitions. [2024-11-20 02:07:46,048 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 695 transitions. Word has length 57 [2024-11-20 02:07:46,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:46,048 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 695 transitions. [2024-11-20 02:07:46,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 21 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:46,049 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 695 transitions. [2024-11-20 02:07:46,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-20 02:07:46,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:46,050 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:46,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 02:07:46,052 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:46,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:46,052 INFO L85 PathProgramCache]: Analyzing trace with hash -2066607835, now seen corresponding path program 1 times [2024-11-20 02:07:46,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:46,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244595504] [2024-11-20 02:07:46,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:46,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:46,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:46,201 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:46,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:46,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244595504] [2024-11-20 02:07:46,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244595504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:46,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:46,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 02:07:46,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543469612] [2024-11-20 02:07:46,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:46,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 02:07:46,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:46,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 02:07:46,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:07:46,202 INFO L87 Difference]: Start difference. First operand 487 states and 695 transitions. Second operand has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:46,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:46,235 INFO L93 Difference]: Finished difference Result 775 states and 1100 transitions. [2024-11-20 02:07:46,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 02:07:46,235 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-20 02:07:46,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:46,237 INFO L225 Difference]: With dead ends: 775 [2024-11-20 02:07:46,237 INFO L226 Difference]: Without dead ends: 488 [2024-11-20 02:07:46,237 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 02:07:46,238 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 39 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:46,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 591 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:46,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-11-20 02:07:46,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 484. [2024-11-20 02:07:46,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 483 states have (on average 1.4078674948240166) internal successors, (680), 483 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:46,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 680 transitions. [2024-11-20 02:07:46,245 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 680 transitions. Word has length 57 [2024-11-20 02:07:46,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:46,245 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 680 transitions. [2024-11-20 02:07:46,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.5) internal successors, (57), 6 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:46,245 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 680 transitions. [2024-11-20 02:07:46,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-20 02:07:46,246 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:46,246 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:46,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 02:07:46,246 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:46,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:46,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1805977196, now seen corresponding path program 1 times [2024-11-20 02:07:46,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:46,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771641612] [2024-11-20 02:07:46,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:46,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:46,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:46,460 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:46,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:46,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771641612] [2024-11-20 02:07:46,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771641612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:46,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:46,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 02:07:46,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093569990] [2024-11-20 02:07:46,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:46,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 02:07:46,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:46,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 02:07:46,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 02:07:46,464 INFO L87 Difference]: Start difference. First operand 484 states and 680 transitions. Second operand has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:46,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:46,493 INFO L93 Difference]: Finished difference Result 739 states and 1031 transitions. [2024-11-20 02:07:46,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 02:07:46,494 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-20 02:07:46,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:46,495 INFO L225 Difference]: With dead ends: 739 [2024-11-20 02:07:46,495 INFO L226 Difference]: Without dead ends: 433 [2024-11-20 02:07:46,495 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:07:46,496 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 31 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:46,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 464 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:46,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-11-20 02:07:46,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 431. [2024-11-20 02:07:46,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 431 states, 430 states have (on average 1.3813953488372093) internal successors, (594), 430 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:46,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 431 states to 431 states and 594 transitions. [2024-11-20 02:07:46,504 INFO L78 Accepts]: Start accepts. Automaton has 431 states and 594 transitions. Word has length 57 [2024-11-20 02:07:46,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:46,504 INFO L471 AbstractCegarLoop]: Abstraction has 431 states and 594 transitions. [2024-11-20 02:07:46,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.4) internal successors, (57), 5 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:46,504 INFO L276 IsEmpty]: Start isEmpty. Operand 431 states and 594 transitions. [2024-11-20 02:07:46,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-20 02:07:46,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:46,505 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:46,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 02:07:46,506 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:46,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:46,506 INFO L85 PathProgramCache]: Analyzing trace with hash 173571707, now seen corresponding path program 1 times [2024-11-20 02:07:46,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:46,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620366553] [2024-11-20 02:07:46,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:46,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:46,889 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:46,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:46,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620366553] [2024-11-20 02:07:46,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620366553] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:46,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:46,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 02:07:46,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432641748] [2024-11-20 02:07:46,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:46,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 02:07:46,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:46,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 02:07:46,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-20 02:07:46,892 INFO L87 Difference]: Start difference. First operand 431 states and 594 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:46,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:46,950 INFO L93 Difference]: Finished difference Result 661 states and 912 transitions. [2024-11-20 02:07:46,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 02:07:46,951 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-20 02:07:46,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:46,953 INFO L225 Difference]: With dead ends: 661 [2024-11-20 02:07:46,953 INFO L226 Difference]: Without dead ends: 490 [2024-11-20 02:07:46,953 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-20 02:07:46,954 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 45 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:46,954 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 847 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:46,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2024-11-20 02:07:46,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 470. [2024-11-20 02:07:46,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 469 states have (on average 1.3539445628997868) internal successors, (635), 469 states have internal predecessors, (635), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:46,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 635 transitions. [2024-11-20 02:07:46,962 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 635 transitions. Word has length 57 [2024-11-20 02:07:46,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:46,962 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 635 transitions. [2024-11-20 02:07:46,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:46,963 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 635 transitions. [2024-11-20 02:07:46,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-20 02:07:46,964 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:46,964 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:46,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 02:07:46,964 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:46,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:46,965 INFO L85 PathProgramCache]: Analyzing trace with hash 320645826, now seen corresponding path program 1 times [2024-11-20 02:07:46,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:46,965 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241580710] [2024-11-20 02:07:46,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:46,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:47,332 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:47,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:47,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241580710] [2024-11-20 02:07:47,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241580710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:47,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:47,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 02:07:47,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959085518] [2024-11-20 02:07:47,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:47,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 02:07:47,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:47,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 02:07:47,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-20 02:07:47,334 INFO L87 Difference]: Start difference. First operand 470 states and 635 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:47,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:47,401 INFO L93 Difference]: Finished difference Result 658 states and 899 transitions. [2024-11-20 02:07:47,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 02:07:47,402 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-20 02:07:47,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:47,404 INFO L225 Difference]: With dead ends: 658 [2024-11-20 02:07:47,404 INFO L226 Difference]: Without dead ends: 486 [2024-11-20 02:07:47,404 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-20 02:07:47,405 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 42 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:47,405 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 715 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:07:47,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-11-20 02:07:47,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 470. [2024-11-20 02:07:47,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 469 states have (on average 1.3454157782515992) internal successors, (631), 469 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:47,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 631 transitions. [2024-11-20 02:07:47,412 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 631 transitions. Word has length 57 [2024-11-20 02:07:47,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:47,412 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 631 transitions. [2024-11-20 02:07:47,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:47,412 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 631 transitions. [2024-11-20 02:07:47,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-20 02:07:47,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:47,413 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:47,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 02:07:47,413 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:47,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:47,414 INFO L85 PathProgramCache]: Analyzing trace with hash 2059985381, now seen corresponding path program 1 times [2024-11-20 02:07:47,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:47,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402901472] [2024-11-20 02:07:47,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:47,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:47,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:48,120 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:48,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:48,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402901472] [2024-11-20 02:07:48,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402901472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:48,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:48,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-20 02:07:48,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701326677] [2024-11-20 02:07:48,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:48,121 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-20 02:07:48,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:48,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-20 02:07:48,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-11-20 02:07:48,122 INFO L87 Difference]: Start difference. First operand 470 states and 631 transitions. Second operand has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 23 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:48,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:48,373 INFO L93 Difference]: Finished difference Result 760 states and 1045 transitions. [2024-11-20 02:07:48,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-20 02:07:48,374 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 23 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-20 02:07:48,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:48,376 INFO L225 Difference]: With dead ends: 760 [2024-11-20 02:07:48,376 INFO L226 Difference]: Without dead ends: 613 [2024-11-20 02:07:48,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-11-20 02:07:48,377 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 105 mSDsluCounter, 1779 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 1893 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:48,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 1893 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:07:48,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2024-11-20 02:07:48,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 506. [2024-11-20 02:07:48,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 1.3465346534653466) internal successors, (680), 505 states have internal predecessors, (680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:48,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 680 transitions. [2024-11-20 02:07:48,385 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 680 transitions. Word has length 57 [2024-11-20 02:07:48,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:48,385 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 680 transitions. [2024-11-20 02:07:48,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.4782608695652173) internal successors, (57), 23 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:48,386 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 680 transitions. [2024-11-20 02:07:48,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-20 02:07:48,386 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:48,386 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:48,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-20 02:07:48,387 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:48,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:48,387 INFO L85 PathProgramCache]: Analyzing trace with hash -756314298, now seen corresponding path program 1 times [2024-11-20 02:07:48,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:48,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630959676] [2024-11-20 02:07:48,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:48,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:48,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:48,964 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:48,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:48,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630959676] [2024-11-20 02:07:48,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630959676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:48,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:48,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 02:07:48,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799321080] [2024-11-20 02:07:48,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:48,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 02:07:48,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:48,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 02:07:48,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-20 02:07:48,967 INFO L87 Difference]: Start difference. First operand 506 states and 680 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:49,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:49,347 INFO L93 Difference]: Finished difference Result 790 states and 1090 transitions. [2024-11-20 02:07:49,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 02:07:49,347 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-20 02:07:49,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:49,349 INFO L225 Difference]: With dead ends: 790 [2024-11-20 02:07:49,349 INFO L226 Difference]: Without dead ends: 652 [2024-11-20 02:07:49,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2024-11-20 02:07:49,350 INFO L432 NwaCegarLoop]: 206 mSDtfsCounter, 341 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:49,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 1513 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 02:07:49,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2024-11-20 02:07:49,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 515. [2024-11-20 02:07:49,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 514 states have (on average 1.3482490272373542) internal successors, (693), 514 states have internal predecessors, (693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:49,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 693 transitions. [2024-11-20 02:07:49,358 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 693 transitions. Word has length 57 [2024-11-20 02:07:49,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:49,358 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 693 transitions. [2024-11-20 02:07:49,358 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:49,358 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 693 transitions. [2024-11-20 02:07:49,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-20 02:07:49,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:49,359 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:49,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 02:07:49,359 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:49,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:49,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1966672115, now seen corresponding path program 1 times [2024-11-20 02:07:49,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:49,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456934979] [2024-11-20 02:07:49,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:49,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:49,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:50,447 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:50,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:50,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456934979] [2024-11-20 02:07:50,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456934979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:50,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:50,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-20 02:07:50,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553231172] [2024-11-20 02:07:50,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:50,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-20 02:07:50,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:50,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-20 02:07:50,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:07:50,450 INFO L87 Difference]: Start difference. First operand 515 states and 693 transitions. Second operand has 22 states, 22 states have (on average 2.590909090909091) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:50,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:50,866 INFO L93 Difference]: Finished difference Result 751 states and 1031 transitions. [2024-11-20 02:07:50,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-20 02:07:50,866 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.590909090909091) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-20 02:07:50,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:50,868 INFO L225 Difference]: With dead ends: 751 [2024-11-20 02:07:50,868 INFO L226 Difference]: Without dead ends: 597 [2024-11-20 02:07:50,868 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:07:50,869 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 111 mSDsluCounter, 1415 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 1527 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:50,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 1527 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 02:07:50,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2024-11-20 02:07:50,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 527. [2024-11-20 02:07:50,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 527 states, 526 states have (on average 1.3517110266159695) internal successors, (711), 526 states have internal predecessors, (711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:50,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 711 transitions. [2024-11-20 02:07:50,876 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 711 transitions. Word has length 57 [2024-11-20 02:07:50,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:50,876 INFO L471 AbstractCegarLoop]: Abstraction has 527 states and 711 transitions. [2024-11-20 02:07:50,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.590909090909091) internal successors, (57), 22 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:50,876 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 711 transitions. [2024-11-20 02:07:50,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-20 02:07:50,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:50,877 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:50,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-20 02:07:50,877 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:50,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:50,878 INFO L85 PathProgramCache]: Analyzing trace with hash -7885154, now seen corresponding path program 1 times [2024-11-20 02:07:50,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:50,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459803737] [2024-11-20 02:07:50,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:50,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:50,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:51,165 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:51,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:51,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459803737] [2024-11-20 02:07:51,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459803737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:51,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:51,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 02:07:51,166 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464181754] [2024-11-20 02:07:51,166 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:51,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 02:07:51,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:51,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 02:07:51,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-20 02:07:51,167 INFO L87 Difference]: Start difference. First operand 527 states and 711 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:51,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:51,390 INFO L93 Difference]: Finished difference Result 821 states and 1125 transitions. [2024-11-20 02:07:51,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 02:07:51,390 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-20 02:07:51,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:51,392 INFO L225 Difference]: With dead ends: 821 [2024-11-20 02:07:51,392 INFO L226 Difference]: Without dead ends: 667 [2024-11-20 02:07:51,392 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-20 02:07:51,393 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 180 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 642 SdHoareTripleChecker+Invalid, 352 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:51,393 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [180 Valid, 642 Invalid, 352 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:07:51,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 667 states. [2024-11-20 02:07:51,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 667 to 655. [2024-11-20 02:07:51,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 654 states have (on average 1.353211009174312) internal successors, (885), 654 states have internal predecessors, (885), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:51,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 885 transitions. [2024-11-20 02:07:51,402 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 885 transitions. Word has length 57 [2024-11-20 02:07:51,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:51,402 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 885 transitions. [2024-11-20 02:07:51,402 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:51,402 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 885 transitions. [2024-11-20 02:07:51,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-20 02:07:51,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:51,403 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:51,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 02:07:51,404 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:51,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:51,404 INFO L85 PathProgramCache]: Analyzing trace with hash 573916881, now seen corresponding path program 1 times [2024-11-20 02:07:51,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:51,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140143005] [2024-11-20 02:07:51,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:51,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:51,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:51,757 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:51,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:51,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140143005] [2024-11-20 02:07:51,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140143005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:51,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:51,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 02:07:51,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142731325] [2024-11-20 02:07:51,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:51,758 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 02:07:51,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:51,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 02:07:51,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-20 02:07:51,759 INFO L87 Difference]: Start difference. First operand 655 states and 885 transitions. Second operand has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:52,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:52,023 INFO L93 Difference]: Finished difference Result 878 states and 1210 transitions. [2024-11-20 02:07:52,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 02:07:52,023 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 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 57 [2024-11-20 02:07:52,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:52,026 INFO L225 Difference]: With dead ends: 878 [2024-11-20 02:07:52,027 INFO L226 Difference]: Without dead ends: 670 [2024-11-20 02:07:52,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-20 02:07:52,027 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 349 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:52,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [349 Valid, 637 Invalid, 357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:07:52,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2024-11-20 02:07:52,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 659. [2024-11-20 02:07:52,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 659 states, 658 states have (on average 1.3541033434650456) internal successors, (891), 658 states have internal predecessors, (891), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:52,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 659 states to 659 states and 891 transitions. [2024-11-20 02:07:52,036 INFO L78 Accepts]: Start accepts. Automaton has 659 states and 891 transitions. Word has length 57 [2024-11-20 02:07:52,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:52,036 INFO L471 AbstractCegarLoop]: Abstraction has 659 states and 891 transitions. [2024-11-20 02:07:52,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 9 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:52,036 INFO L276 IsEmpty]: Start isEmpty. Operand 659 states and 891 transitions. [2024-11-20 02:07:52,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 02:07:52,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:52,037 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:52,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 02:07:52,037 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:52,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:52,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1394040018, now seen corresponding path program 1 times [2024-11-20 02:07:52,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:52,038 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405400815] [2024-11-20 02:07:52,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:52,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:52,731 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:52,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:52,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405400815] [2024-11-20 02:07:52,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405400815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:52,732 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:52,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-20 02:07:52,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647098491] [2024-11-20 02:07:52,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:52,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-20 02:07:52,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:52,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-20 02:07:52,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-11-20 02:07:52,733 INFO L87 Difference]: Start difference. First operand 659 states and 891 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:52,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:52,892 INFO L93 Difference]: Finished difference Result 1145 states and 1573 transitions. [2024-11-20 02:07:52,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 02:07:52,892 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-20 02:07:52,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:52,895 INFO L225 Difference]: With dead ends: 1145 [2024-11-20 02:07:52,895 INFO L226 Difference]: Without dead ends: 891 [2024-11-20 02:07:52,897 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-11-20 02:07:52,897 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 89 mSDsluCounter, 1063 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 1172 SdHoareTripleChecker+Invalid, 310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:52,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 1172 Invalid, 310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:07:52,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2024-11-20 02:07:52,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 825. [2024-11-20 02:07:52,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 824 states have (on average 1.337378640776699) internal successors, (1102), 824 states have internal predecessors, (1102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:52,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1102 transitions. [2024-11-20 02:07:52,910 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1102 transitions. Word has length 58 [2024-11-20 02:07:52,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:52,910 INFO L471 AbstractCegarLoop]: Abstraction has 825 states and 1102 transitions. [2024-11-20 02:07:52,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:52,910 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1102 transitions. [2024-11-20 02:07:52,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 02:07:52,913 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:52,913 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:52,913 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-20 02:07:52,913 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:52,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:52,913 INFO L85 PathProgramCache]: Analyzing trace with hash -1767313941, now seen corresponding path program 1 times [2024-11-20 02:07:52,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:52,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973979308] [2024-11-20 02:07:52,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:52,914 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:52,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:53,697 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:53,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:53,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973979308] [2024-11-20 02:07:53,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973979308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:53,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:53,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2024-11-20 02:07:53,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702377017] [2024-11-20 02:07:53,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:53,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-20 02:07:53,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:53,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-20 02:07:53,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2024-11-20 02:07:53,699 INFO L87 Difference]: Start difference. First operand 825 states and 1102 transitions. Second operand has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:53,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:53,879 INFO L93 Difference]: Finished difference Result 1134 states and 1544 transitions. [2024-11-20 02:07:53,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-20 02:07:53,879 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-20 02:07:53,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:53,882 INFO L225 Difference]: With dead ends: 1134 [2024-11-20 02:07:53,882 INFO L226 Difference]: Without dead ends: 925 [2024-11-20 02:07:53,882 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2024-11-20 02:07:53,883 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 136 mSDsluCounter, 1026 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1133 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:53,883 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 1133 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:07:53,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 925 states. [2024-11-20 02:07:53,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 925 to 825. [2024-11-20 02:07:53,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 825 states, 824 states have (on average 1.3385922330097086) internal successors, (1103), 824 states have internal predecessors, (1103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:53,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 825 states to 825 states and 1103 transitions. [2024-11-20 02:07:53,898 INFO L78 Accepts]: Start accepts. Automaton has 825 states and 1103 transitions. Word has length 58 [2024-11-20 02:07:53,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:53,898 INFO L471 AbstractCegarLoop]: Abstraction has 825 states and 1103 transitions. [2024-11-20 02:07:53,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.4166666666666665) internal successors, (58), 24 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:53,901 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states and 1103 transitions. [2024-11-20 02:07:53,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 02:07:53,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:53,902 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:53,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 02:07:53,903 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:53,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:53,903 INFO L85 PathProgramCache]: Analyzing trace with hash 1008377028, now seen corresponding path program 1 times [2024-11-20 02:07:53,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:53,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423479675] [2024-11-20 02:07:53,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:53,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:53,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:54,666 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:54,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:54,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423479675] [2024-11-20 02:07:54,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423479675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:54,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:54,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-20 02:07:54,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79049871] [2024-11-20 02:07:54,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:54,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-20 02:07:54,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:54,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-20 02:07:54,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:07:54,668 INFO L87 Difference]: Start difference. First operand 825 states and 1103 transitions. Second operand has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:54,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:54,875 INFO L93 Difference]: Finished difference Result 1109 states and 1510 transitions. [2024-11-20 02:07:54,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-20 02:07:54,876 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-20 02:07:54,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:54,878 INFO L225 Difference]: With dead ends: 1109 [2024-11-20 02:07:54,878 INFO L226 Difference]: Without dead ends: 900 [2024-11-20 02:07:54,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:07:54,880 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 195 mSDsluCounter, 1381 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 1493 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:54,881 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [195 Valid, 1493 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:07:54,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2024-11-20 02:07:54,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 800. [2024-11-20 02:07:54,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 799 states have (on average 1.3354192740926158) internal successors, (1067), 799 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:54,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1067 transitions. [2024-11-20 02:07:54,897 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1067 transitions. Word has length 58 [2024-11-20 02:07:54,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:54,897 INFO L471 AbstractCegarLoop]: Abstraction has 800 states and 1067 transitions. [2024-11-20 02:07:54,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:54,897 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1067 transitions. [2024-11-20 02:07:54,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 02:07:54,898 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:54,898 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:54,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-20 02:07:54,898 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:54,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:54,899 INFO L85 PathProgramCache]: Analyzing trace with hash 1178240200, now seen corresponding path program 1 times [2024-11-20 02:07:54,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:54,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167485560] [2024-11-20 02:07:54,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:54,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:55,147 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:55,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:55,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167485560] [2024-11-20 02:07:55,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167485560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:55,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:55,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 02:07:55,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976606641] [2024-11-20 02:07:55,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:55,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 02:07:55,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:55,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 02:07:55,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 02:07:55,150 INFO L87 Difference]: Start difference. First operand 800 states and 1067 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:55,193 INFO L93 Difference]: Finished difference Result 1066 states and 1457 transitions. [2024-11-20 02:07:55,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 02:07:55,193 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-20 02:07:55,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:55,195 INFO L225 Difference]: With dead ends: 1066 [2024-11-20 02:07:55,195 INFO L226 Difference]: Without dead ends: 808 [2024-11-20 02:07:55,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-20 02:07:55,196 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 30 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 69 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:55,198 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 847 Invalid, 69 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:55,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-11-20 02:07:55,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 794. [2024-11-20 02:07:55,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 793 states have (on average 1.3316519546027743) internal successors, (1056), 793 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1056 transitions. [2024-11-20 02:07:55,208 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1056 transitions. Word has length 58 [2024-11-20 02:07:55,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:55,208 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1056 transitions. [2024-11-20 02:07:55,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,209 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1056 transitions. [2024-11-20 02:07:55,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 02:07:55,209 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:55,210 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:55,210 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-20 02:07:55,210 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:55,210 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:55,210 INFO L85 PathProgramCache]: Analyzing trace with hash -1125042801, now seen corresponding path program 1 times [2024-11-20 02:07:55,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:55,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395588973] [2024-11-20 02:07:55,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:55,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:55,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:55,427 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:55,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:55,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395588973] [2024-11-20 02:07:55,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395588973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:55,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:55,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 02:07:55,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305768771] [2024-11-20 02:07:55,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:55,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 02:07:55,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:55,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 02:07:55,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 02:07:55,428 INFO L87 Difference]: Start difference. First operand 794 states and 1056 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:55,483 INFO L93 Difference]: Finished difference Result 1054 states and 1431 transitions. [2024-11-20 02:07:55,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 02:07:55,484 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-20 02:07:55,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:55,486 INFO L225 Difference]: With dead ends: 1054 [2024-11-20 02:07:55,486 INFO L226 Difference]: Without dead ends: 794 [2024-11-20 02:07:55,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 02:07:55,487 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 27 mSDsluCounter, 673 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 791 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:55,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 791 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:55,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 794 states. [2024-11-20 02:07:55,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 794 to 794. [2024-11-20 02:07:55,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 794 states, 793 states have (on average 1.3240857503152585) internal successors, (1050), 793 states have internal predecessors, (1050), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 794 states to 794 states and 1050 transitions. [2024-11-20 02:07:55,496 INFO L78 Accepts]: Start accepts. Automaton has 794 states and 1050 transitions. Word has length 58 [2024-11-20 02:07:55,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:55,496 INFO L471 AbstractCegarLoop]: Abstraction has 794 states and 1050 transitions. [2024-11-20 02:07:55,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,497 INFO L276 IsEmpty]: Start isEmpty. Operand 794 states and 1050 transitions. [2024-11-20 02:07:55,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 02:07:55,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:55,498 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:55,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-20 02:07:55,498 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:55,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:55,499 INFO L85 PathProgramCache]: Analyzing trace with hash -319654, now seen corresponding path program 1 times [2024-11-20 02:07:55,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:55,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688213841] [2024-11-20 02:07:55,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:55,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:55,791 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:55,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:55,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688213841] [2024-11-20 02:07:55,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688213841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:55,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:55,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 02:07:55,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294502696] [2024-11-20 02:07:55,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:55,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 02:07:55,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:55,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 02:07:55,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-20 02:07:55,794 INFO L87 Difference]: Start difference. First operand 794 states and 1050 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:55,846 INFO L93 Difference]: Finished difference Result 1065 states and 1442 transitions. [2024-11-20 02:07:55,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 02:07:55,846 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-20 02:07:55,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:55,848 INFO L225 Difference]: With dead ends: 1065 [2024-11-20 02:07:55,849 INFO L226 Difference]: Without dead ends: 842 [2024-11-20 02:07:55,849 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-20 02:07:55,850 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 34 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:55,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 878 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:55,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2024-11-20 02:07:55,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 823. [2024-11-20 02:07:55,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 822 states have (on average 1.3223844282238444) internal successors, (1087), 822 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 1087 transitions. [2024-11-20 02:07:55,866 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 1087 transitions. Word has length 58 [2024-11-20 02:07:55,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:55,866 INFO L471 AbstractCegarLoop]: Abstraction has 823 states and 1087 transitions. [2024-11-20 02:07:55,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:55,867 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 1087 transitions. [2024-11-20 02:07:55,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 02:07:55,868 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:55,868 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:55,868 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-20 02:07:55,868 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:55,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:55,868 INFO L85 PathProgramCache]: Analyzing trace with hash 146754465, now seen corresponding path program 1 times [2024-11-20 02:07:55,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:55,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623710345] [2024-11-20 02:07:55,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:55,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:55,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:56,845 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:56,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:56,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623710345] [2024-11-20 02:07:56,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623710345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:56,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:56,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-20 02:07:56,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57521422] [2024-11-20 02:07:56,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:56,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-20 02:07:56,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:56,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-20 02:07:56,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:07:56,847 INFO L87 Difference]: Start difference. First operand 823 states and 1087 transitions. Second operand has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:57,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:57,729 INFO L93 Difference]: Finished difference Result 1478 states and 2000 transitions. [2024-11-20 02:07:57,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-20 02:07:57,729 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-20 02:07:57,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:57,732 INFO L225 Difference]: With dead ends: 1478 [2024-11-20 02:07:57,732 INFO L226 Difference]: Without dead ends: 1268 [2024-11-20 02:07:57,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=132, Invalid=860, Unknown=0, NotChecked=0, Total=992 [2024-11-20 02:07:57,733 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 420 mSDsluCounter, 2008 mSDsCounter, 0 mSdLazyCounter, 1357 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 420 SdHoareTripleChecker+Valid, 2151 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:57,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [420 Valid, 2151 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1357 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-20 02:07:57,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1268 states. [2024-11-20 02:07:57,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1268 to 959. [2024-11-20 02:07:57,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 958 states have (on average 1.3235908141962422) internal successors, (1268), 958 states have internal predecessors, (1268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:57,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1268 transitions. [2024-11-20 02:07:57,746 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1268 transitions. Word has length 58 [2024-11-20 02:07:57,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:57,746 INFO L471 AbstractCegarLoop]: Abstraction has 959 states and 1268 transitions. [2024-11-20 02:07:57,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:57,746 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1268 transitions. [2024-11-20 02:07:57,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 02:07:57,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:57,749 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:57,749 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-20 02:07:57,749 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:57,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:57,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1443040232, now seen corresponding path program 1 times [2024-11-20 02:07:57,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:57,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892745205] [2024-11-20 02:07:57,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:57,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:57,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:58,081 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:58,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:58,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892745205] [2024-11-20 02:07:58,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892745205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:58,082 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:58,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 02:07:58,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955526665] [2024-11-20 02:07:58,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:58,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 02:07:58,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:58,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 02:07:58,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-20 02:07:58,083 INFO L87 Difference]: Start difference. First operand 959 states and 1268 transitions. Second operand has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:58,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:58,133 INFO L93 Difference]: Finished difference Result 1272 states and 1714 transitions. [2024-11-20 02:07:58,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 02:07:58,133 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-20 02:07:58,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:58,136 INFO L225 Difference]: With dead ends: 1272 [2024-11-20 02:07:58,136 INFO L226 Difference]: Without dead ends: 948 [2024-11-20 02:07:58,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-20 02:07:58,137 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 41 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 734 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:58,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 734 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:58,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 948 states. [2024-11-20 02:07:58,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 948 to 910. [2024-11-20 02:07:58,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 909 states have (on average 1.316831683168317) internal successors, (1197), 909 states have internal predecessors, (1197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:58,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 1197 transitions. [2024-11-20 02:07:58,147 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 1197 transitions. Word has length 58 [2024-11-20 02:07:58,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:58,147 INFO L471 AbstractCegarLoop]: Abstraction has 910 states and 1197 transitions. [2024-11-20 02:07:58,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.8) internal successors, (58), 10 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:58,147 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 1197 transitions. [2024-11-20 02:07:58,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 02:07:58,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:58,149 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:58,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-20 02:07:58,149 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:58,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:58,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1200337350, now seen corresponding path program 1 times [2024-11-20 02:07:58,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:58,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038153005] [2024-11-20 02:07:58,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:58,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:58,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:58,790 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:58,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:58,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038153005] [2024-11-20 02:07:58,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2038153005] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:58,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:58,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-20 02:07:58,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589603756] [2024-11-20 02:07:58,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:58,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-20 02:07:58,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:58,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-20 02:07:58,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:07:58,792 INFO L87 Difference]: Start difference. First operand 910 states and 1197 transitions. Second operand has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:58,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:58,995 INFO L93 Difference]: Finished difference Result 1280 states and 1728 transitions. [2024-11-20 02:07:58,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-20 02:07:58,996 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-20 02:07:58,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:58,998 INFO L225 Difference]: With dead ends: 1280 [2024-11-20 02:07:58,998 INFO L226 Difference]: Without dead ends: 1019 [2024-11-20 02:07:58,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:07:59,000 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 134 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 1740 SdHoareTripleChecker+Invalid, 482 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:59,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 1740 Invalid, 482 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:07:59,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2024-11-20 02:07:59,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 916. [2024-11-20 02:07:59,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 916 states, 915 states have (on average 1.3158469945355191) internal successors, (1204), 915 states have internal predecessors, (1204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:59,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 916 states to 916 states and 1204 transitions. [2024-11-20 02:07:59,016 INFO L78 Accepts]: Start accepts. Automaton has 916 states and 1204 transitions. Word has length 58 [2024-11-20 02:07:59,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:59,017 INFO L471 AbstractCegarLoop]: Abstraction has 916 states and 1204 transitions. [2024-11-20 02:07:59,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6363636363636362) internal successors, (58), 22 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:59,017 INFO L276 IsEmpty]: Start isEmpty. Operand 916 states and 1204 transitions. [2024-11-20 02:07:59,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 02:07:59,018 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:59,019 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:59,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-20 02:07:59,019 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:59,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:59,020 INFO L85 PathProgramCache]: Analyzing trace with hash -418062271, now seen corresponding path program 1 times [2024-11-20 02:07:59,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:59,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332220657] [2024-11-20 02:07:59,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:59,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:59,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:59,334 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:59,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:59,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332220657] [2024-11-20 02:07:59,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332220657] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:07:59,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:07:59,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 02:07:59,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109521517] [2024-11-20 02:07:59,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:07:59,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 02:07:59,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:07:59,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 02:07:59,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-20 02:07:59,335 INFO L87 Difference]: Start difference. First operand 916 states and 1204 transitions. Second operand has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:59,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:07:59,390 INFO L93 Difference]: Finished difference Result 1278 states and 1718 transitions. [2024-11-20 02:07:59,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 02:07:59,390 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-20 02:07:59,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:07:59,393 INFO L225 Difference]: With dead ends: 1278 [2024-11-20 02:07:59,393 INFO L226 Difference]: Without dead ends: 1003 [2024-11-20 02:07:59,394 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-20 02:07:59,395 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 46 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 832 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:07:59,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 832 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:07:59,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1003 states. [2024-11-20 02:07:59,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1003 to 939. [2024-11-20 02:07:59,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 939 states, 938 states have (on average 1.3102345415778252) internal successors, (1229), 938 states have internal predecessors, (1229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:59,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 939 states to 939 states and 1229 transitions. [2024-11-20 02:07:59,415 INFO L78 Accepts]: Start accepts. Automaton has 939 states and 1229 transitions. Word has length 58 [2024-11-20 02:07:59,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:07:59,415 INFO L471 AbstractCegarLoop]: Abstraction has 939 states and 1229 transitions. [2024-11-20 02:07:59,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.833333333333333) internal successors, (58), 12 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:07:59,415 INFO L276 IsEmpty]: Start isEmpty. Operand 939 states and 1229 transitions. [2024-11-20 02:07:59,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 02:07:59,417 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:07:59,417 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:07:59,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-20 02:07:59,417 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:07:59,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:07:59,417 INFO L85 PathProgramCache]: Analyzing trace with hash -270988152, now seen corresponding path program 1 times [2024-11-20 02:07:59,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:07:59,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363593112] [2024-11-20 02:07:59,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:59,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:07:59,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:59,699 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:07:59,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:07:59,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363593112] [2024-11-20 02:07:59,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363593112] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 02:07:59,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1902400338] [2024-11-20 02:07:59,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:07:59,700 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:07:59,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 02:07:59,701 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 02:07:59,703 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 02:07:59,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:07:59,916 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 148 conjuncts are in the unsatisfiable core [2024-11-20 02:07:59,922 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 02:08:00,388 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:00,388 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 02:08:00,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1902400338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:00,389 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 02:08:00,389 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2024-11-20 02:08:00,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113737526] [2024-11-20 02:08:00,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:00,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 02:08:00,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:00,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 02:08:00,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-20 02:08:00,390 INFO L87 Difference]: Start difference. First operand 939 states and 1229 transitions. Second operand has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 15 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:00,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:00,655 INFO L93 Difference]: Finished difference Result 2061 states and 2705 transitions. [2024-11-20 02:08:00,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 02:08:00,655 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 15 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-20 02:08:00,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:00,659 INFO L225 Difference]: With dead ends: 2061 [2024-11-20 02:08:00,659 INFO L226 Difference]: Without dead ends: 1788 [2024-11-20 02:08:00,660 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-20 02:08:00,661 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 178 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 488 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 607 SdHoareTripleChecker+Invalid, 491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 488 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:00,661 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 607 Invalid, 491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 488 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:08:00,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1788 states. [2024-11-20 02:08:00,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1788 to 1209. [2024-11-20 02:08:00,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1209 states, 1208 states have (on average 1.3187086092715232) internal successors, (1593), 1208 states have internal predecessors, (1593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:00,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1593 transitions. [2024-11-20 02:08:00,698 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1593 transitions. Word has length 58 [2024-11-20 02:08:00,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:00,698 INFO L471 AbstractCegarLoop]: Abstraction has 1209 states and 1593 transitions. [2024-11-20 02:08:00,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.8666666666666667) internal successors, (58), 15 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:00,698 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1593 transitions. [2024-11-20 02:08:00,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 02:08:00,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:00,700 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:00,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-20 02:08:00,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-20 02:08:00,901 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:00,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:00,902 INFO L85 PathProgramCache]: Analyzing trace with hash 70047194, now seen corresponding path program 1 times [2024-11-20 02:08:00,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:00,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527279452] [2024-11-20 02:08:00,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:00,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:00,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:01,146 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:01,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:01,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527279452] [2024-11-20 02:08:01,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527279452] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 02:08:01,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993279264] [2024-11-20 02:08:01,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:01,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:08:01,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 02:08:01,149 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 02:08:01,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 02:08:01,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:01,350 INFO L255 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-11-20 02:08:01,353 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 02:08:01,697 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:01,697 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 02:08:01,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993279264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:01,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 02:08:01,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2024-11-20 02:08:01,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657927673] [2024-11-20 02:08:01,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:01,698 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 02:08:01,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:01,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 02:08:01,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2024-11-20 02:08:01,699 INFO L87 Difference]: Start difference. First operand 1209 states and 1593 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:01,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:01,981 INFO L93 Difference]: Finished difference Result 1867 states and 2522 transitions. [2024-11-20 02:08:01,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 02:08:01,981 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-20 02:08:01,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:01,984 INFO L225 Difference]: With dead ends: 1867 [2024-11-20 02:08:01,984 INFO L226 Difference]: Without dead ends: 1526 [2024-11-20 02:08:01,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-20 02:08:01,986 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 163 mSDsluCounter, 681 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 808 SdHoareTripleChecker+Invalid, 511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:01,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 808 Invalid, 511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:08:01,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1526 states. [2024-11-20 02:08:02,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1526 to 1504. [2024-11-20 02:08:02,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1504 states, 1503 states have (on average 1.3213572854291418) internal successors, (1986), 1503 states have internal predecessors, (1986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:02,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1504 states to 1504 states and 1986 transitions. [2024-11-20 02:08:02,007 INFO L78 Accepts]: Start accepts. Automaton has 1504 states and 1986 transitions. Word has length 58 [2024-11-20 02:08:02,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:02,009 INFO L471 AbstractCegarLoop]: Abstraction has 1504 states and 1986 transitions. [2024-11-20 02:08:02,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:02,010 INFO L276 IsEmpty]: Start isEmpty. Operand 1504 states and 1986 transitions. [2024-11-20 02:08:02,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 02:08:02,011 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:02,011 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:02,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-20 02:08:02,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:08:02,212 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:02,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:02,212 INFO L85 PathProgramCache]: Analyzing trace with hash 401761184, now seen corresponding path program 1 times [2024-11-20 02:08:02,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:02,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716544669] [2024-11-20 02:08:02,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:02,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:02,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:02,650 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:02,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:02,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [716544669] [2024-11-20 02:08:02,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [716544669] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:02,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:02,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 02:08:02,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1711090112] [2024-11-20 02:08:02,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:02,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 02:08:02,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:02,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 02:08:02,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-20 02:08:02,653 INFO L87 Difference]: Start difference. First operand 1504 states and 1986 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:02,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:02,819 INFO L93 Difference]: Finished difference Result 1998 states and 2707 transitions. [2024-11-20 02:08:02,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 02:08:02,819 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-20 02:08:02,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:02,823 INFO L225 Difference]: With dead ends: 1998 [2024-11-20 02:08:02,823 INFO L226 Difference]: Without dead ends: 1529 [2024-11-20 02:08:02,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-20 02:08:02,825 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 279 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 669 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:02,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 669 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:02,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2024-11-20 02:08:02,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1518. [2024-11-20 02:08:02,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1517 states have (on average 1.3210283454185894) internal successors, (2004), 1517 states have internal predecessors, (2004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:02,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 2004 transitions. [2024-11-20 02:08:02,851 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 2004 transitions. Word has length 58 [2024-11-20 02:08:02,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:02,852 INFO L471 AbstractCegarLoop]: Abstraction has 1518 states and 2004 transitions. [2024-11-20 02:08:02,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 9 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:02,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 2004 transitions. [2024-11-20 02:08:02,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 02:08:02,857 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:02,857 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:02,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2024-11-20 02:08:02,858 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:02,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:02,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1595826479, now seen corresponding path program 1 times [2024-11-20 02:08:02,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:02,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343326329] [2024-11-20 02:08:02,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:02,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:02,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:03,283 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:03,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:03,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343326329] [2024-11-20 02:08:03,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343326329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:03,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:03,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 02:08:03,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429024661] [2024-11-20 02:08:03,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:03,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 02:08:03,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:03,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 02:08:03,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-20 02:08:03,285 INFO L87 Difference]: Start difference. First operand 1518 states and 2004 transitions. Second operand has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:03,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:03,361 INFO L93 Difference]: Finished difference Result 2346 states and 3116 transitions. [2024-11-20 02:08:03,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 02:08:03,362 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-20 02:08:03,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:03,366 INFO L225 Difference]: With dead ends: 2346 [2024-11-20 02:08:03,366 INFO L226 Difference]: Without dead ends: 1827 [2024-11-20 02:08:03,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-20 02:08:03,367 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 75 mSDsluCounter, 684 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 803 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:03,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 803 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:03,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1827 states. [2024-11-20 02:08:03,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1827 to 1636. [2024-11-20 02:08:03,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1636 states, 1635 states have (on average 1.3027522935779816) internal successors, (2130), 1635 states have internal predecessors, (2130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:03,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1636 states to 1636 states and 2130 transitions. [2024-11-20 02:08:03,385 INFO L78 Accepts]: Start accepts. Automaton has 1636 states and 2130 transitions. Word has length 58 [2024-11-20 02:08:03,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:03,385 INFO L471 AbstractCegarLoop]: Abstraction has 1636 states and 2130 transitions. [2024-11-20 02:08:03,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.461538461538462) internal successors, (58), 13 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:03,386 INFO L276 IsEmpty]: Start isEmpty. Operand 1636 states and 2130 transitions. [2024-11-20 02:08:03,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 02:08:03,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:03,389 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:03,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2024-11-20 02:08:03,389 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:03,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:03,389 INFO L85 PathProgramCache]: Analyzing trace with hash 429119112, now seen corresponding path program 1 times [2024-11-20 02:08:03,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:03,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536435353] [2024-11-20 02:08:03,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:03,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:03,763 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:03,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:03,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536435353] [2024-11-20 02:08:03,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536435353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:03,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:03,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-20 02:08:03,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062218603] [2024-11-20 02:08:03,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:03,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-20 02:08:03,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:03,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-20 02:08:03,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-20 02:08:03,764 INFO L87 Difference]: Start difference. First operand 1636 states and 2130 transitions. Second operand has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:03,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:03,846 INFO L93 Difference]: Finished difference Result 2617 states and 3460 transitions. [2024-11-20 02:08:03,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 02:08:03,846 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-20 02:08:03,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:03,851 INFO L225 Difference]: With dead ends: 2617 [2024-11-20 02:08:03,851 INFO L226 Difference]: Without dead ends: 2131 [2024-11-20 02:08:03,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-20 02:08:03,852 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 59 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:03,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1128 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:03,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2131 states. [2024-11-20 02:08:03,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2131 to 1890. [2024-11-20 02:08:03,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1890 states, 1889 states have (on average 1.3065113816834304) internal successors, (2468), 1889 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:03,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 2468 transitions. [2024-11-20 02:08:03,873 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 2468 transitions. Word has length 58 [2024-11-20 02:08:03,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:03,873 INFO L471 AbstractCegarLoop]: Abstraction has 1890 states and 2468 transitions. [2024-11-20 02:08:03,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.625) internal successors, (58), 16 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:03,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 2468 transitions. [2024-11-20 02:08:03,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 02:08:03,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:03,876 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:03,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2024-11-20 02:08:03,876 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:03,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:03,876 INFO L85 PathProgramCache]: Analyzing trace with hash 2128228168, now seen corresponding path program 1 times [2024-11-20 02:08:03,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:03,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722471277] [2024-11-20 02:08:03,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:03,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:03,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:04,492 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:04,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:04,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722471277] [2024-11-20 02:08:04,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722471277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:04,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:04,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-20 02:08:04,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386868656] [2024-11-20 02:08:04,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:04,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-20 02:08:04,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:04,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-20 02:08:04,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:08:04,494 INFO L87 Difference]: Start difference. First operand 1890 states and 2468 transitions. Second operand has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:04,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:04,672 INFO L93 Difference]: Finished difference Result 2491 states and 3327 transitions. [2024-11-20 02:08:04,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-20 02:08:04,673 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-20 02:08:04,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:04,676 INFO L225 Difference]: With dead ends: 2491 [2024-11-20 02:08:04,676 INFO L226 Difference]: Without dead ends: 2008 [2024-11-20 02:08:04,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:08:04,680 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 109 mSDsluCounter, 1570 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 1681 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:04,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 1681 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:08:04,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2024-11-20 02:08:04,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 1928. [2024-11-20 02:08:04,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1928 states, 1927 states have (on average 1.305137519460301) internal successors, (2515), 1927 states have internal predecessors, (2515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:04,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1928 states to 1928 states and 2515 transitions. [2024-11-20 02:08:04,700 INFO L78 Accepts]: Start accepts. Automaton has 1928 states and 2515 transitions. Word has length 58 [2024-11-20 02:08:04,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:04,701 INFO L471 AbstractCegarLoop]: Abstraction has 1928 states and 2515 transitions. [2024-11-20 02:08:04,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:04,701 INFO L276 IsEmpty]: Start isEmpty. Operand 1928 states and 2515 transitions. [2024-11-20 02:08:04,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 02:08:04,703 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:04,703 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:04,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2024-11-20 02:08:04,703 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:04,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:04,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1310745227, now seen corresponding path program 1 times [2024-11-20 02:08:04,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:04,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [69492920] [2024-11-20 02:08:04,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:04,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:04,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:04,887 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:04,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:04,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [69492920] [2024-11-20 02:08:04,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [69492920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:04,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:04,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 02:08:04,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036474133] [2024-11-20 02:08:04,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:04,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 02:08:04,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:04,889 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 02:08:04,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:08:04,889 INFO L87 Difference]: Start difference. First operand 1928 states and 2515 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:05,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:05,027 INFO L93 Difference]: Finished difference Result 2397 states and 3185 transitions. [2024-11-20 02:08:05,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 02:08:05,028 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-20 02:08:05,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:05,034 INFO L225 Difference]: With dead ends: 2397 [2024-11-20 02:08:05,037 INFO L226 Difference]: Without dead ends: 1580 [2024-11-20 02:08:05,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:08:05,039 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 130 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:05,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 367 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:05,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2024-11-20 02:08:05,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1580. [2024-11-20 02:08:05,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 1.3052564914502849) internal successors, (2061), 1579 states have internal predecessors, (2061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:05,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 2061 transitions. [2024-11-20 02:08:05,061 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 2061 transitions. Word has length 58 [2024-11-20 02:08:05,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:05,061 INFO L471 AbstractCegarLoop]: Abstraction has 1580 states and 2061 transitions. [2024-11-20 02:08:05,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:05,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 2061 transitions. [2024-11-20 02:08:05,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 02:08:05,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:05,063 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:05,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-20 02:08:05,064 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:05,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:05,064 INFO L85 PathProgramCache]: Analyzing trace with hash 975412250, now seen corresponding path program 1 times [2024-11-20 02:08:05,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:05,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249940771] [2024-11-20 02:08:05,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:05,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:05,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:05,512 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:05,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:05,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249940771] [2024-11-20 02:08:05,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249940771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:05,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:05,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-20 02:08:05,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586194996] [2024-11-20 02:08:05,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:05,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-20 02:08:05,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:05,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-20 02:08:05,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:08:05,513 INFO L87 Difference]: Start difference. First operand 1580 states and 2061 transitions. Second operand has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:05,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:05,641 INFO L93 Difference]: Finished difference Result 2318 states and 3098 transitions. [2024-11-20 02:08:05,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-20 02:08:05,642 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-20 02:08:05,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:05,644 INFO L225 Difference]: With dead ends: 2318 [2024-11-20 02:08:05,644 INFO L226 Difference]: Without dead ends: 1878 [2024-11-20 02:08:05,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=369, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:08:05,646 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 59 mSDsluCounter, 1571 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:05,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1678 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:05,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1878 states. [2024-11-20 02:08:05,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1878 to 1720. [2024-11-20 02:08:05,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1720 states, 1719 states have (on average 1.3054101221640488) internal successors, (2244), 1719 states have internal predecessors, (2244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:05,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1720 states to 1720 states and 2244 transitions. [2024-11-20 02:08:05,662 INFO L78 Accepts]: Start accepts. Automaton has 1720 states and 2244 transitions. Word has length 58 [2024-11-20 02:08:05,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:05,662 INFO L471 AbstractCegarLoop]: Abstraction has 1720 states and 2244 transitions. [2024-11-20 02:08:05,662 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.761904761904762) internal successors, (58), 21 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:05,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1720 states and 2244 transitions. [2024-11-20 02:08:05,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 02:08:05,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:05,664 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:05,664 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-20 02:08:05,665 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:05,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:05,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1224736609, now seen corresponding path program 1 times [2024-11-20 02:08:05,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:05,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107689082] [2024-11-20 02:08:05,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:05,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:06,444 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:06,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:06,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107689082] [2024-11-20 02:08:06,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107689082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:06,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:06,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-20 02:08:06,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603018501] [2024-11-20 02:08:06,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:06,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-20 02:08:06,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:06,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-20 02:08:06,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2024-11-20 02:08:06,446 INFO L87 Difference]: Start difference. First operand 1720 states and 2244 transitions. Second operand has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:06,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:06,679 INFO L93 Difference]: Finished difference Result 2183 states and 2903 transitions. [2024-11-20 02:08:06,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 02:08:06,679 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-20 02:08:06,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:06,681 INFO L225 Difference]: With dead ends: 2183 [2024-11-20 02:08:06,681 INFO L226 Difference]: Without dead ends: 1770 [2024-11-20 02:08:06,682 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=320, Unknown=0, NotChecked=0, Total=380 [2024-11-20 02:08:06,683 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 139 mSDsluCounter, 1294 mSDsCounter, 0 mSdLazyCounter, 533 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1400 SdHoareTripleChecker+Invalid, 534 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 533 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:06,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1400 Invalid, 534 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 533 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:08:06,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1770 states. [2024-11-20 02:08:06,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1770 to 1724. [2024-11-20 02:08:06,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1724 states, 1723 states have (on average 1.3052814857806152) internal successors, (2249), 1723 states have internal predecessors, (2249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:06,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1724 states to 1724 states and 2249 transitions. [2024-11-20 02:08:06,698 INFO L78 Accepts]: Start accepts. Automaton has 1724 states and 2249 transitions. Word has length 58 [2024-11-20 02:08:06,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:06,699 INFO L471 AbstractCegarLoop]: Abstraction has 1724 states and 2249 transitions. [2024-11-20 02:08:06,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.0526315789473686) internal successors, (58), 19 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:06,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1724 states and 2249 transitions. [2024-11-20 02:08:06,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 02:08:06,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:06,701 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:06,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2024-11-20 02:08:06,701 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:06,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:06,701 INFO L85 PathProgramCache]: Analyzing trace with hash 1765607968, now seen corresponding path program 1 times [2024-11-20 02:08:06,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:06,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687363084] [2024-11-20 02:08:06,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:06,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:06,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:07,603 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:07,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:07,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687363084] [2024-11-20 02:08:07,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687363084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:07,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:07,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-20 02:08:07,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432811952] [2024-11-20 02:08:07,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:07,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-20 02:08:07,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:07,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-20 02:08:07,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-11-20 02:08:07,606 INFO L87 Difference]: Start difference. First operand 1724 states and 2249 transitions. Second operand has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:07,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:07,870 INFO L93 Difference]: Finished difference Result 2272 states and 3023 transitions. [2024-11-20 02:08:07,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 02:08:07,870 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-20 02:08:07,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:07,873 INFO L225 Difference]: With dead ends: 2272 [2024-11-20 02:08:07,873 INFO L226 Difference]: Without dead ends: 1859 [2024-11-20 02:08:07,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=354, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:08:07,875 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 115 mSDsluCounter, 1163 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1281 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:07,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1281 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:08:07,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1859 states. [2024-11-20 02:08:07,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1859 to 1774. [2024-11-20 02:08:07,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1774 states, 1773 states have (on average 1.305696559503666) internal successors, (2315), 1773 states have internal predecessors, (2315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:07,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1774 states to 1774 states and 2315 transitions. [2024-11-20 02:08:07,899 INFO L78 Accepts]: Start accepts. Automaton has 1774 states and 2315 transitions. Word has length 58 [2024-11-20 02:08:07,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:07,899 INFO L471 AbstractCegarLoop]: Abstraction has 1774 states and 2315 transitions. [2024-11-20 02:08:07,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:07,899 INFO L276 IsEmpty]: Start isEmpty. Operand 1774 states and 2315 transitions. [2024-11-20 02:08:07,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 02:08:07,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:07,902 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:07,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2024-11-20 02:08:07,902 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:07,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:07,903 INFO L85 PathProgramCache]: Analyzing trace with hash 458729454, now seen corresponding path program 1 times [2024-11-20 02:08:07,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:07,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856482953] [2024-11-20 02:08:07,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:07,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:07,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:08,661 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:08,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:08,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856482953] [2024-11-20 02:08:08,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856482953] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:08,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:08,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-20 02:08:08,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703229554] [2024-11-20 02:08:08,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:08,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-20 02:08:08,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:08,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-20 02:08:08,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-11-20 02:08:08,664 INFO L87 Difference]: Start difference. First operand 1774 states and 2315 transitions. Second operand has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:08,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:08,876 INFO L93 Difference]: Finished difference Result 2278 states and 3029 transitions. [2024-11-20 02:08:08,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 02:08:08,877 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-20 02:08:08,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:08,879 INFO L225 Difference]: With dead ends: 2278 [2024-11-20 02:08:08,879 INFO L226 Difference]: Without dead ends: 1865 [2024-11-20 02:08:08,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:08:08,880 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 92 mSDsluCounter, 1314 mSDsCounter, 0 mSdLazyCounter, 483 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 483 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:08,880 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1427 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 483 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:08:08,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1865 states. [2024-11-20 02:08:08,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1865 to 1778. [2024-11-20 02:08:08,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1778 states, 1777 states have (on average 1.3050084411930218) internal successors, (2319), 1777 states have internal predecessors, (2319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:08,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1778 states to 1778 states and 2319 transitions. [2024-11-20 02:08:08,894 INFO L78 Accepts]: Start accepts. Automaton has 1778 states and 2319 transitions. Word has length 58 [2024-11-20 02:08:08,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:08,894 INFO L471 AbstractCegarLoop]: Abstraction has 1778 states and 2319 transitions. [2024-11-20 02:08:08,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:08,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states and 2319 transitions. [2024-11-20 02:08:08,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-20 02:08:08,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:08,897 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:08,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2024-11-20 02:08:08,897 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:08,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:08,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1386191307, now seen corresponding path program 1 times [2024-11-20 02:08:08,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:08,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308047210] [2024-11-20 02:08:08,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:08,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:08,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:09,608 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:09,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:09,609 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308047210] [2024-11-20 02:08:09,609 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308047210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:09,609 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:09,609 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-20 02:08:09,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3920220] [2024-11-20 02:08:09,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:09,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-20 02:08:09,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:09,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-20 02:08:09,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-11-20 02:08:09,610 INFO L87 Difference]: Start difference. First operand 1778 states and 2319 transitions. Second operand has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:09,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:09,822 INFO L93 Difference]: Finished difference Result 2224 states and 2962 transitions. [2024-11-20 02:08:09,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 02:08:09,822 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 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 58 [2024-11-20 02:08:09,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:09,824 INFO L225 Difference]: With dead ends: 2224 [2024-11-20 02:08:09,824 INFO L226 Difference]: Without dead ends: 1811 [2024-11-20 02:08:09,825 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:08:09,826 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 79 mSDsluCounter, 1402 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1507 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:09,826 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1507 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:08:09,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1811 states. [2024-11-20 02:08:09,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1811 to 1764. [2024-11-20 02:08:09,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1764 states, 1763 states have (on average 1.3074305161656268) internal successors, (2305), 1763 states have internal predecessors, (2305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:09,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1764 states to 1764 states and 2305 transitions. [2024-11-20 02:08:09,839 INFO L78 Accepts]: Start accepts. Automaton has 1764 states and 2305 transitions. Word has length 58 [2024-11-20 02:08:09,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:09,840 INFO L471 AbstractCegarLoop]: Abstraction has 1764 states and 2305 transitions. [2024-11-20 02:08:09,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.9) internal successors, (58), 20 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:09,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1764 states and 2305 transitions. [2024-11-20 02:08:09,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-20 02:08:09,842 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:09,842 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:08:09,842 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-20 02:08:09,842 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:09,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:09,842 INFO L85 PathProgramCache]: Analyzing trace with hash 609168265, now seen corresponding path program 1 times [2024-11-20 02:08:09,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:09,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111858839] [2024-11-20 02:08:09,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:09,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:09,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:10,056 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:10,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:10,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111858839] [2024-11-20 02:08:10,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111858839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:10,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:10,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-20 02:08:10,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918131998] [2024-11-20 02:08:10,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:10,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 02:08:10,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:10,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 02:08:10,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 02:08:10,058 INFO L87 Difference]: Start difference. First operand 1764 states and 2305 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:10,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:10,093 INFO L93 Difference]: Finished difference Result 2199 states and 2935 transitions. [2024-11-20 02:08:10,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 02:08:10,093 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-20 02:08:10,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:10,095 INFO L225 Difference]: With dead ends: 2199 [2024-11-20 02:08:10,095 INFO L226 Difference]: Without dead ends: 1663 [2024-11-20 02:08:10,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-20 02:08:10,096 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 26 mSDsluCounter, 693 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:10,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 814 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:08:10,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1663 states. [2024-11-20 02:08:10,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1663 to 1579. [2024-11-20 02:08:10,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1579 states, 1578 states have (on average 1.3035487959442331) internal successors, (2057), 1578 states have internal predecessors, (2057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:10,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1579 states to 1579 states and 2057 transitions. [2024-11-20 02:08:10,108 INFO L78 Accepts]: Start accepts. Automaton has 1579 states and 2057 transitions. Word has length 59 [2024-11-20 02:08:10,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:10,108 INFO L471 AbstractCegarLoop]: Abstraction has 1579 states and 2057 transitions. [2024-11-20 02:08:10,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:10,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1579 states and 2057 transitions. [2024-11-20 02:08:10,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-20 02:08:10,110 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:10,110 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:08:10,110 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-20 02:08:10,110 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:10,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:10,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1667878235, now seen corresponding path program 1 times [2024-11-20 02:08:10,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:10,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196906700] [2024-11-20 02:08:10,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:10,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:10,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:10,379 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:10,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:10,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196906700] [2024-11-20 02:08:10,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196906700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:10,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:10,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 02:08:10,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253143316] [2024-11-20 02:08:10,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:10,380 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 02:08:10,380 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:10,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 02:08:10,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-20 02:08:10,380 INFO L87 Difference]: Start difference. First operand 1579 states and 2057 transitions. Second operand has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:10,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:10,490 INFO L93 Difference]: Finished difference Result 2573 states and 3400 transitions. [2024-11-20 02:08:10,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 02:08:10,491 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-20 02:08:10,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:10,493 INFO L225 Difference]: With dead ends: 2573 [2024-11-20 02:08:10,493 INFO L226 Difference]: Without dead ends: 2063 [2024-11-20 02:08:10,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-20 02:08:10,496 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 149 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 472 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:10,496 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 472 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:10,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2063 states. [2024-11-20 02:08:10,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2063 to 1931. [2024-11-20 02:08:10,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1931 states, 1930 states have (on average 1.2927461139896372) internal successors, (2495), 1930 states have internal predecessors, (2495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:10,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2495 transitions. [2024-11-20 02:08:10,512 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2495 transitions. Word has length 59 [2024-11-20 02:08:10,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:10,512 INFO L471 AbstractCegarLoop]: Abstraction has 1931 states and 2495 transitions. [2024-11-20 02:08:10,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.9) internal successors, (59), 10 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:10,513 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2495 transitions. [2024-11-20 02:08:10,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-20 02:08:10,514 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:10,514 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:08:10,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2024-11-20 02:08:10,515 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:10,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:10,515 INFO L85 PathProgramCache]: Analyzing trace with hash 347375337, now seen corresponding path program 1 times [2024-11-20 02:08:10,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:10,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010878629] [2024-11-20 02:08:10,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:10,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:10,718 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:10,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:10,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010878629] [2024-11-20 02:08:10,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010878629] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 02:08:10,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123398766] [2024-11-20 02:08:10,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:10,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:08:10,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 02:08:10,723 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 02:08:10,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 02:08:10,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:10,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-20 02:08:10,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 02:08:11,117 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:11,117 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 02:08:11,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123398766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:11,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 02:08:11,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [6] total 12 [2024-11-20 02:08:11,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625053592] [2024-11-20 02:08:11,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:11,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-20 02:08:11,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:11,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-20 02:08:11,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-20 02:08:11,118 INFO L87 Difference]: Start difference. First operand 1931 states and 2495 transitions. Second operand has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:11,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:11,188 INFO L93 Difference]: Finished difference Result 2456 states and 3259 transitions. [2024-11-20 02:08:11,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 02:08:11,189 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-20 02:08:11,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:11,191 INFO L225 Difference]: With dead ends: 2456 [2024-11-20 02:08:11,192 INFO L226 Difference]: Without dead ends: 1960 [2024-11-20 02:08:11,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-20 02:08:11,193 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 88 mSDsluCounter, 411 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:11,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 518 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:11,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1960 states. [2024-11-20 02:08:11,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1960 to 1890. [2024-11-20 02:08:11,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1890 states, 1889 states have (on average 1.2964531498147167) internal successors, (2449), 1889 states have internal predecessors, (2449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:11,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1890 states to 1890 states and 2449 transitions. [2024-11-20 02:08:11,208 INFO L78 Accepts]: Start accepts. Automaton has 1890 states and 2449 transitions. Word has length 59 [2024-11-20 02:08:11,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:11,208 INFO L471 AbstractCegarLoop]: Abstraction has 1890 states and 2449 transitions. [2024-11-20 02:08:11,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.375) internal successors, (59), 8 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:11,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1890 states and 2449 transitions. [2024-11-20 02:08:11,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-20 02:08:11,210 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:11,210 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:08:11,222 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 02:08:11,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:08:11,416 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:11,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:11,417 INFO L85 PathProgramCache]: Analyzing trace with hash 712040418, now seen corresponding path program 1 times [2024-11-20 02:08:11,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:11,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242479347] [2024-11-20 02:08:11,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:11,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:11,964 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:11,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:11,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242479347] [2024-11-20 02:08:11,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242479347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:11,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:11,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-20 02:08:11,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823896061] [2024-11-20 02:08:11,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:11,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-20 02:08:11,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:11,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-20 02:08:11,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:08:11,966 INFO L87 Difference]: Start difference. First operand 1890 states and 2449 transitions. Second operand has 22 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:12,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:12,111 INFO L93 Difference]: Finished difference Result 2532 states and 3354 transitions. [2024-11-20 02:08:12,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-20 02:08:12,112 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-20 02:08:12,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:12,114 INFO L225 Difference]: With dead ends: 2532 [2024-11-20 02:08:12,114 INFO L226 Difference]: Without dead ends: 2027 [2024-11-20 02:08:12,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:08:12,116 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 144 mSDsluCounter, 1245 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:12,116 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 1354 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:12,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2024-11-20 02:08:12,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 1903. [2024-11-20 02:08:12,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1903 states, 1902 states have (on average 1.2960042060988433) internal successors, (2465), 1902 states have internal predecessors, (2465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:12,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 2465 transitions. [2024-11-20 02:08:12,132 INFO L78 Accepts]: Start accepts. Automaton has 1903 states and 2465 transitions. Word has length 59 [2024-11-20 02:08:12,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:12,132 INFO L471 AbstractCegarLoop]: Abstraction has 1903 states and 2465 transitions. [2024-11-20 02:08:12,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:12,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1903 states and 2465 transitions. [2024-11-20 02:08:12,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-20 02:08:12,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:12,134 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:08:12,134 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-20 02:08:12,135 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:12,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:12,135 INFO L85 PathProgramCache]: Analyzing trace with hash 567372976, now seen corresponding path program 1 times [2024-11-20 02:08:12,135 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:12,135 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313738509] [2024-11-20 02:08:12,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:12,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:12,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:12,701 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:12,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:12,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313738509] [2024-11-20 02:08:12,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313738509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:12,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:12,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-20 02:08:12,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858922218] [2024-11-20 02:08:12,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:12,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-20 02:08:12,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:12,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-20 02:08:12,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:08:12,702 INFO L87 Difference]: Start difference. First operand 1903 states and 2465 transitions. Second operand has 22 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:12,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:12,852 INFO L93 Difference]: Finished difference Result 2620 states and 3462 transitions. [2024-11-20 02:08:12,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-20 02:08:12,855 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-20 02:08:12,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:12,858 INFO L225 Difference]: With dead ends: 2620 [2024-11-20 02:08:12,858 INFO L226 Difference]: Without dead ends: 2115 [2024-11-20 02:08:12,859 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:08:12,859 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 79 mSDsluCounter, 1738 mSDsCounter, 0 mSdLazyCounter, 393 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 1853 SdHoareTripleChecker+Invalid, 393 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 393 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:12,859 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 1853 Invalid, 393 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 393 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:12,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2115 states. [2024-11-20 02:08:12,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2115 to 1965. [2024-11-20 02:08:12,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1965 states, 1964 states have (on average 1.2942973523421588) internal successors, (2542), 1964 states have internal predecessors, (2542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:12,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1965 states to 1965 states and 2542 transitions. [2024-11-20 02:08:12,874 INFO L78 Accepts]: Start accepts. Automaton has 1965 states and 2542 transitions. Word has length 59 [2024-11-20 02:08:12,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:12,875 INFO L471 AbstractCegarLoop]: Abstraction has 1965 states and 2542 transitions. [2024-11-20 02:08:12,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 22 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:12,875 INFO L276 IsEmpty]: Start isEmpty. Operand 1965 states and 2542 transitions. [2024-11-20 02:08:12,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-20 02:08:12,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:12,877 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:08:12,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-20 02:08:12,877 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:12,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:12,877 INFO L85 PathProgramCache]: Analyzing trace with hash 809457450, now seen corresponding path program 1 times [2024-11-20 02:08:12,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:12,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594397209] [2024-11-20 02:08:12,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:12,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:13,575 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:13,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:13,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594397209] [2024-11-20 02:08:13,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594397209] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:13,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:13,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-20 02:08:13,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86485972] [2024-11-20 02:08:13,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:13,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-20 02:08:13,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:13,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-20 02:08:13,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2024-11-20 02:08:13,577 INFO L87 Difference]: Start difference. First operand 1965 states and 2542 transitions. Second operand has 20 states, 20 states have (on average 2.95) internal successors, (59), 20 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:13,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:13,804 INFO L93 Difference]: Finished difference Result 2595 states and 3428 transitions. [2024-11-20 02:08:13,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 02:08:13,805 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 2.95) internal successors, (59), 20 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-20 02:08:13,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:13,808 INFO L225 Difference]: With dead ends: 2595 [2024-11-20 02:08:13,808 INFO L226 Difference]: Without dead ends: 2090 [2024-11-20 02:08:13,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=363, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:08:13,811 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 115 mSDsluCounter, 1332 mSDsCounter, 0 mSdLazyCounter, 504 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 1435 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 504 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:13,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 1435 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 504 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:08:13,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2024-11-20 02:08:13,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 1969. [2024-11-20 02:08:13,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1969 states, 1968 states have (on average 1.2942073170731707) internal successors, (2547), 1968 states have internal predecessors, (2547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:13,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1969 states to 1969 states and 2547 transitions. [2024-11-20 02:08:13,829 INFO L78 Accepts]: Start accepts. Automaton has 1969 states and 2547 transitions. Word has length 59 [2024-11-20 02:08:13,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:13,830 INFO L471 AbstractCegarLoop]: Abstraction has 1969 states and 2547 transitions. [2024-11-20 02:08:13,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 2.95) internal successors, (59), 20 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:13,830 INFO L276 IsEmpty]: Start isEmpty. Operand 1969 states and 2547 transitions. [2024-11-20 02:08:13,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-20 02:08:13,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:13,832 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:08:13,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2024-11-20 02:08:13,832 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:13,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:13,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1684797157, now seen corresponding path program 1 times [2024-11-20 02:08:13,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:13,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066455010] [2024-11-20 02:08:13,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:13,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:13,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:14,746 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:14,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:14,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066455010] [2024-11-20 02:08:14,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066455010] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 02:08:14,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584818919] [2024-11-20 02:08:14,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:14,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:08:14,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 02:08:14,747 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 02:08:14,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 02:08:14,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:14,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 76 conjuncts are in the unsatisfiable core [2024-11-20 02:08:14,994 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 02:08:15,456 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:15,456 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 02:08:15,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584818919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:15,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 02:08:15,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [25] total 42 [2024-11-20 02:08:15,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757480749] [2024-11-20 02:08:15,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:15,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-20 02:08:15,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:15,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-20 02:08:15,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1612, Unknown=0, NotChecked=0, Total=1722 [2024-11-20 02:08:15,458 INFO L87 Difference]: Start difference. First operand 1969 states and 2547 transitions. Second operand has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 19 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:15,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:15,568 INFO L93 Difference]: Finished difference Result 2551 states and 3378 transitions. [2024-11-20 02:08:15,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-20 02:08:15,569 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 19 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-20 02:08:15,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:15,572 INFO L225 Difference]: With dead ends: 2551 [2024-11-20 02:08:15,572 INFO L226 Difference]: Without dead ends: 2030 [2024-11-20 02:08:15,573 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 415 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=110, Invalid=1612, Unknown=0, NotChecked=0, Total=1722 [2024-11-20 02:08:15,573 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 64 mSDsluCounter, 1086 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 1199 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:15,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 1199 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:15,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2030 states. [2024-11-20 02:08:15,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2030 to 1929. [2024-11-20 02:08:15,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1929 states, 1928 states have (on average 1.2940871369294606) internal successors, (2495), 1928 states have internal predecessors, (2495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:15,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1929 states to 1929 states and 2495 transitions. [2024-11-20 02:08:15,588 INFO L78 Accepts]: Start accepts. Automaton has 1929 states and 2495 transitions. Word has length 59 [2024-11-20 02:08:15,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:15,588 INFO L471 AbstractCegarLoop]: Abstraction has 1929 states and 2495 transitions. [2024-11-20 02:08:15,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.1052631578947367) internal successors, (59), 19 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:15,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1929 states and 2495 transitions. [2024-11-20 02:08:15,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-20 02:08:15,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:15,590 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:08:15,599 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 02:08:15,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:08:15,791 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:15,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:15,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1271940102, now seen corresponding path program 1 times [2024-11-20 02:08:15,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:15,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458313850] [2024-11-20 02:08:15,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:15,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:15,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:16,673 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:16,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:16,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458313850] [2024-11-20 02:08:16,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458313850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:16,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:16,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-20 02:08:16,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629774715] [2024-11-20 02:08:16,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:16,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-20 02:08:16,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:16,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-20 02:08:16,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-11-20 02:08:16,675 INFO L87 Difference]: Start difference. First operand 1929 states and 2495 transitions. Second operand has 23 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 23 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:16,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:16,935 INFO L93 Difference]: Finished difference Result 2595 states and 3424 transitions. [2024-11-20 02:08:16,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-20 02:08:16,936 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 23 states have internal predecessors, (59), 0 states have call successors, (0), 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 59 [2024-11-20 02:08:16,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:16,938 INFO L225 Difference]: With dead ends: 2595 [2024-11-20 02:08:16,938 INFO L226 Difference]: Without dead ends: 2090 [2024-11-20 02:08:16,938 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2024-11-20 02:08:16,939 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 108 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1627 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:16,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1627 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:08:16,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2024-11-20 02:08:16,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 1951. [2024-11-20 02:08:16,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1951 states, 1950 states have (on average 1.2933333333333332) internal successors, (2522), 1950 states have internal predecessors, (2522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:16,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1951 states to 1951 states and 2522 transitions. [2024-11-20 02:08:16,953 INFO L78 Accepts]: Start accepts. Automaton has 1951 states and 2522 transitions. Word has length 59 [2024-11-20 02:08:16,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:16,953 INFO L471 AbstractCegarLoop]: Abstraction has 1951 states and 2522 transitions. [2024-11-20 02:08:16,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.5652173913043477) internal successors, (59), 23 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:16,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1951 states and 2522 transitions. [2024-11-20 02:08:16,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-20 02:08:16,955 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:16,955 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:16,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2024-11-20 02:08:16,955 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:16,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:16,956 INFO L85 PathProgramCache]: Analyzing trace with hash 256401501, now seen corresponding path program 1 times [2024-11-20 02:08:16,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:16,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84260315] [2024-11-20 02:08:16,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:16,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:16,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:17,371 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:17,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:17,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84260315] [2024-11-20 02:08:17,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84260315] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:17,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:17,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 02:08:17,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820470853] [2024-11-20 02:08:17,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:17,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 02:08:17,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:17,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 02:08:17,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-20 02:08:17,373 INFO L87 Difference]: Start difference. First operand 1951 states and 2522 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:17,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:17,430 INFO L93 Difference]: Finished difference Result 2635 states and 3461 transitions. [2024-11-20 02:08:17,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 02:08:17,431 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-20 02:08:17,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:17,432 INFO L225 Difference]: With dead ends: 2635 [2024-11-20 02:08:17,432 INFO L226 Difference]: Without dead ends: 2027 [2024-11-20 02:08:17,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-20 02:08:17,433 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 30 mSDsluCounter, 850 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:17,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 970 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:08:17,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2024-11-20 02:08:17,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 1787. [2024-11-20 02:08:17,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1787 states, 1786 states have (on average 1.3051511758118701) internal successors, (2331), 1786 states have internal predecessors, (2331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:17,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1787 states to 1787 states and 2331 transitions. [2024-11-20 02:08:17,447 INFO L78 Accepts]: Start accepts. Automaton has 1787 states and 2331 transitions. Word has length 60 [2024-11-20 02:08:17,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:17,447 INFO L471 AbstractCegarLoop]: Abstraction has 1787 states and 2331 transitions. [2024-11-20 02:08:17,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:17,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1787 states and 2331 transitions. [2024-11-20 02:08:17,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-20 02:08:17,448 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:17,448 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:17,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2024-11-20 02:08:17,449 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:17,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:17,449 INFO L85 PathProgramCache]: Analyzing trace with hash -1603201244, now seen corresponding path program 1 times [2024-11-20 02:08:17,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:17,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045294422] [2024-11-20 02:08:17,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:17,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:17,580 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:17,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:17,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045294422] [2024-11-20 02:08:17,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045294422] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:17,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:17,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 02:08:17,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856001819] [2024-11-20 02:08:17,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:17,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 02:08:17,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:17,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 02:08:17,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:08:17,582 INFO L87 Difference]: Start difference. First operand 1787 states and 2331 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:17,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:17,667 INFO L93 Difference]: Finished difference Result 2489 states and 3281 transitions. [2024-11-20 02:08:17,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 02:08:17,667 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-20 02:08:17,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:17,669 INFO L225 Difference]: With dead ends: 2489 [2024-11-20 02:08:17,669 INFO L226 Difference]: Without dead ends: 1661 [2024-11-20 02:08:17,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:08:17,670 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 113 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:17,670 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 367 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:17,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1661 states. [2024-11-20 02:08:17,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1661 to 1629. [2024-11-20 02:08:17,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1629 states, 1628 states have (on average 1.2813267813267812) internal successors, (2086), 1628 states have internal predecessors, (2086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:17,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2086 transitions. [2024-11-20 02:08:17,683 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2086 transitions. Word has length 60 [2024-11-20 02:08:17,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:17,684 INFO L471 AbstractCegarLoop]: Abstraction has 1629 states and 2086 transitions. [2024-11-20 02:08:17,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:17,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2086 transitions. [2024-11-20 02:08:17,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-20 02:08:17,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:17,686 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:17,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-20 02:08:17,686 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:17,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:17,686 INFO L85 PathProgramCache]: Analyzing trace with hash -1801633791, now seen corresponding path program 1 times [2024-11-20 02:08:17,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:17,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6729982] [2024-11-20 02:08:17,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:17,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:17,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:18,012 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:18,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:18,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6729982] [2024-11-20 02:08:18,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6729982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:18,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:18,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 02:08:18,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333248526] [2024-11-20 02:08:18,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:18,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 02:08:18,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:18,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 02:08:18,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-20 02:08:18,014 INFO L87 Difference]: Start difference. First operand 1629 states and 2086 transitions. Second operand has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:18,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:18,074 INFO L93 Difference]: Finished difference Result 2168 states and 2823 transitions. [2024-11-20 02:08:18,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 02:08:18,075 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-20 02:08:18,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:18,077 INFO L225 Difference]: With dead ends: 2168 [2024-11-20 02:08:18,078 INFO L226 Difference]: Without dead ends: 1669 [2024-11-20 02:08:18,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-20 02:08:18,079 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 36 mSDsluCounter, 598 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:18,080 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 714 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:18,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1669 states. [2024-11-20 02:08:18,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1669 to 1629. [2024-11-20 02:08:18,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1629 states, 1628 states have (on average 1.2751842751842752) internal successors, (2076), 1628 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:18,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1629 states to 1629 states and 2076 transitions. [2024-11-20 02:08:18,092 INFO L78 Accepts]: Start accepts. Automaton has 1629 states and 2076 transitions. Word has length 60 [2024-11-20 02:08:18,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:18,092 INFO L471 AbstractCegarLoop]: Abstraction has 1629 states and 2076 transitions. [2024-11-20 02:08:18,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.454545454545454) internal successors, (60), 11 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:18,092 INFO L276 IsEmpty]: Start isEmpty. Operand 1629 states and 2076 transitions. [2024-11-20 02:08:18,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-20 02:08:18,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:18,094 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:18,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-20 02:08:18,094 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:18,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:18,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1872766743, now seen corresponding path program 1 times [2024-11-20 02:08:18,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:18,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071129578] [2024-11-20 02:08:18,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:18,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:18,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:18,478 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:18,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:18,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071129578] [2024-11-20 02:08:18,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071129578] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:18,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:18,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 02:08:18,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236514837] [2024-11-20 02:08:18,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:18,479 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 02:08:18,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:18,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 02:08:18,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-20 02:08:18,480 INFO L87 Difference]: Start difference. First operand 1629 states and 2076 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:18,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:18,555 INFO L93 Difference]: Finished difference Result 2102 states and 2746 transitions. [2024-11-20 02:08:18,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 02:08:18,555 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-20 02:08:18,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:18,557 INFO L225 Difference]: With dead ends: 2102 [2024-11-20 02:08:18,557 INFO L226 Difference]: Without dead ends: 1654 [2024-11-20 02:08:18,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-20 02:08:18,558 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 47 mSDsluCounter, 880 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:18,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 995 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:18,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1654 states. [2024-11-20 02:08:18,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1654 to 1635. [2024-11-20 02:08:18,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1635 states, 1634 states have (on average 1.2760097919216646) internal successors, (2085), 1634 states have internal predecessors, (2085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:18,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1635 states to 1635 states and 2085 transitions. [2024-11-20 02:08:18,568 INFO L78 Accepts]: Start accepts. Automaton has 1635 states and 2085 transitions. Word has length 60 [2024-11-20 02:08:18,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:18,568 INFO L471 AbstractCegarLoop]: Abstraction has 1635 states and 2085 transitions. [2024-11-20 02:08:18,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:18,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1635 states and 2085 transitions. [2024-11-20 02:08:18,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-20 02:08:18,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:18,569 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:18,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-20 02:08:18,569 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:18,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:18,570 INFO L85 PathProgramCache]: Analyzing trace with hash -914149788, now seen corresponding path program 1 times [2024-11-20 02:08:18,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:18,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123096581] [2024-11-20 02:08:18,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:18,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:18,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:19,048 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:19,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:19,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123096581] [2024-11-20 02:08:19,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123096581] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:19,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:19,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 02:08:19,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903517452] [2024-11-20 02:08:19,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:19,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 02:08:19,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:19,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 02:08:19,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-20 02:08:19,050 INFO L87 Difference]: Start difference. First operand 1635 states and 2085 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:19,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:19,143 INFO L93 Difference]: Finished difference Result 2085 states and 2723 transitions. [2024-11-20 02:08:19,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 02:08:19,144 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-20 02:08:19,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:19,145 INFO L225 Difference]: With dead ends: 2085 [2024-11-20 02:08:19,145 INFO L226 Difference]: Without dead ends: 1631 [2024-11-20 02:08:19,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-20 02:08:19,146 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 46 mSDsluCounter, 1120 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 1238 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:19,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 1238 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:19,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1631 states. [2024-11-20 02:08:19,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1631 to 1569. [2024-11-20 02:08:19,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1569 states, 1568 states have (on average 1.2831632653061225) internal successors, (2012), 1568 states have internal predecessors, (2012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:19,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1569 states to 1569 states and 2012 transitions. [2024-11-20 02:08:19,162 INFO L78 Accepts]: Start accepts. Automaton has 1569 states and 2012 transitions. Word has length 60 [2024-11-20 02:08:19,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:19,162 INFO L471 AbstractCegarLoop]: Abstraction has 1569 states and 2012 transitions. [2024-11-20 02:08:19,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:19,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1569 states and 2012 transitions. [2024-11-20 02:08:19,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-20 02:08:19,164 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:19,164 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:19,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-20 02:08:19,165 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:19,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:19,165 INFO L85 PathProgramCache]: Analyzing trace with hash -145929666, now seen corresponding path program 1 times [2024-11-20 02:08:19,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:19,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760457638] [2024-11-20 02:08:19,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:19,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:19,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:19,585 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:19,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:19,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760457638] [2024-11-20 02:08:19,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760457638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:19,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:19,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 02:08:19,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673608556] [2024-11-20 02:08:19,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:19,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 02:08:19,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:19,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 02:08:19,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-20 02:08:19,587 INFO L87 Difference]: Start difference. First operand 1569 states and 2012 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:19,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:19,666 INFO L93 Difference]: Finished difference Result 2064 states and 2711 transitions. [2024-11-20 02:08:19,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 02:08:19,667 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-20 02:08:19,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:19,668 INFO L225 Difference]: With dead ends: 2064 [2024-11-20 02:08:19,668 INFO L226 Difference]: Without dead ends: 1612 [2024-11-20 02:08:19,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-20 02:08:19,669 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 70 mSDsluCounter, 891 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 1005 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:19,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 1005 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:19,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1612 states. [2024-11-20 02:08:19,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1612 to 1565. [2024-11-20 02:08:19,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1564 states have (on average 1.2858056265984654) internal successors, (2011), 1564 states have internal predecessors, (2011), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:19,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 2011 transitions. [2024-11-20 02:08:19,680 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 2011 transitions. Word has length 60 [2024-11-20 02:08:19,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:19,680 INFO L471 AbstractCegarLoop]: Abstraction has 1565 states and 2011 transitions. [2024-11-20 02:08:19,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:19,680 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 2011 transitions. [2024-11-20 02:08:19,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-20 02:08:19,681 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:19,682 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:19,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2024-11-20 02:08:19,682 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:19,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:19,682 INFO L85 PathProgramCache]: Analyzing trace with hash 1362121099, now seen corresponding path program 1 times [2024-11-20 02:08:19,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:19,682 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109010042] [2024-11-20 02:08:19,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:19,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:19,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:19,806 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:19,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:19,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109010042] [2024-11-20 02:08:19,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109010042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:19,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:19,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 02:08:19,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133451019] [2024-11-20 02:08:19,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:19,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 02:08:19,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:19,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 02:08:19,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:08:19,807 INFO L87 Difference]: Start difference. First operand 1565 states and 2011 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:19,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:19,891 INFO L93 Difference]: Finished difference Result 2245 states and 2916 transitions. [2024-11-20 02:08:19,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 02:08:19,891 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-20 02:08:19,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:19,893 INFO L225 Difference]: With dead ends: 2245 [2024-11-20 02:08:19,893 INFO L226 Difference]: Without dead ends: 1529 [2024-11-20 02:08:19,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:08:19,894 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 119 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 368 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:19,894 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 368 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:19,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1529 states. [2024-11-20 02:08:19,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1529 to 1482. [2024-11-20 02:08:19,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 1.274139095205942) internal successors, (1887), 1481 states have internal predecessors, (1887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:19,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 1887 transitions. [2024-11-20 02:08:19,902 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 1887 transitions. Word has length 60 [2024-11-20 02:08:19,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:19,903 INFO L471 AbstractCegarLoop]: Abstraction has 1482 states and 1887 transitions. [2024-11-20 02:08:19,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:19,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 1887 transitions. [2024-11-20 02:08:19,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-20 02:08:19,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:19,904 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:19,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-20 02:08:19,904 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:19,904 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:19,904 INFO L85 PathProgramCache]: Analyzing trace with hash -1885657347, now seen corresponding path program 1 times [2024-11-20 02:08:19,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:19,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129510118] [2024-11-20 02:08:19,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:19,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:20,434 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:20,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:20,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129510118] [2024-11-20 02:08:20,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129510118] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:20,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:20,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-20 02:08:20,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055207412] [2024-11-20 02:08:20,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:20,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-20 02:08:20,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:20,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-20 02:08:20,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:08:20,436 INFO L87 Difference]: Start difference. First operand 1482 states and 1887 transitions. Second operand has 22 states, 22 states have (on average 2.727272727272727) internal successors, (60), 22 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:20,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:20,568 INFO L93 Difference]: Finished difference Result 2010 states and 2609 transitions. [2024-11-20 02:08:20,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-20 02:08:20,568 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.727272727272727) internal successors, (60), 22 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-20 02:08:20,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:20,569 INFO L225 Difference]: With dead ends: 2010 [2024-11-20 02:08:20,570 INFO L226 Difference]: Without dead ends: 1600 [2024-11-20 02:08:20,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:08:20,570 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 90 mSDsluCounter, 1239 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 1352 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:20,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 1352 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:20,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1600 states. [2024-11-20 02:08:20,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1600 to 1515. [2024-11-20 02:08:20,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1515 states, 1514 states have (on average 1.2760898282694848) internal successors, (1932), 1514 states have internal predecessors, (1932), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:20,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1515 states to 1515 states and 1932 transitions. [2024-11-20 02:08:20,580 INFO L78 Accepts]: Start accepts. Automaton has 1515 states and 1932 transitions. Word has length 60 [2024-11-20 02:08:20,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:20,580 INFO L471 AbstractCegarLoop]: Abstraction has 1515 states and 1932 transitions. [2024-11-20 02:08:20,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.727272727272727) internal successors, (60), 22 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:20,580 INFO L276 IsEmpty]: Start isEmpty. Operand 1515 states and 1932 transitions. [2024-11-20 02:08:20,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-20 02:08:20,581 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:20,581 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:20,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-11-20 02:08:20,581 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:20,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:20,582 INFO L85 PathProgramCache]: Analyzing trace with hash 851324396, now seen corresponding path program 1 times [2024-11-20 02:08:20,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:20,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428963128] [2024-11-20 02:08:20,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:20,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:20,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:20,712 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:20,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:20,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428963128] [2024-11-20 02:08:20,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428963128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:20,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:20,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-20 02:08:20,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611271546] [2024-11-20 02:08:20,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:20,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 02:08:20,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:20,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 02:08:20,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:08:20,713 INFO L87 Difference]: Start difference. First operand 1515 states and 1932 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:20,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:20,810 INFO L93 Difference]: Finished difference Result 2062 states and 2671 transitions. [2024-11-20 02:08:20,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 02:08:20,810 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-20 02:08:20,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:20,811 INFO L225 Difference]: With dead ends: 2062 [2024-11-20 02:08:20,811 INFO L226 Difference]: Without dead ends: 1505 [2024-11-20 02:08:20,812 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-20 02:08:20,812 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 122 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:20,813 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 366 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:20,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1505 states. [2024-11-20 02:08:20,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1505 to 1482. [2024-11-20 02:08:20,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1482 states, 1481 states have (on average 1.2687373396353816) internal successors, (1879), 1481 states have internal predecessors, (1879), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:20,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1482 states to 1482 states and 1879 transitions. [2024-11-20 02:08:20,824 INFO L78 Accepts]: Start accepts. Automaton has 1482 states and 1879 transitions. Word has length 60 [2024-11-20 02:08:20,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:20,825 INFO L471 AbstractCegarLoop]: Abstraction has 1482 states and 1879 transitions. [2024-11-20 02:08:20,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:20,825 INFO L276 IsEmpty]: Start isEmpty. Operand 1482 states and 1879 transitions. [2024-11-20 02:08:20,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-20 02:08:20,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:20,826 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:20,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2024-11-20 02:08:20,826 INFO L396 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:20,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:20,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1283188061, now seen corresponding path program 1 times [2024-11-20 02:08:20,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:20,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670169119] [2024-11-20 02:08:20,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:20,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:21,390 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:21,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:21,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670169119] [2024-11-20 02:08:21,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670169119] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:21,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:21,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-20 02:08:21,391 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521324116] [2024-11-20 02:08:21,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:21,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-20 02:08:21,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:21,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-20 02:08:21,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:08:21,392 INFO L87 Difference]: Start difference. First operand 1482 states and 1879 transitions. Second operand has 22 states, 22 states have (on average 2.727272727272727) internal successors, (60), 22 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:21,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:21,561 INFO L93 Difference]: Finished difference Result 2008 states and 2601 transitions. [2024-11-20 02:08:21,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-20 02:08:21,561 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.727272727272727) internal successors, (60), 22 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2024-11-20 02:08:21,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:21,564 INFO L225 Difference]: With dead ends: 2008 [2024-11-20 02:08:21,564 INFO L226 Difference]: Without dead ends: 1608 [2024-11-20 02:08:21,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:08:21,565 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 92 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 434 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 434 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:21,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 1709 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 434 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:08:21,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1608 states. [2024-11-20 02:08:21,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1608 to 1524. [2024-11-20 02:08:21,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1524 states, 1523 states have (on average 1.2692055154300723) internal successors, (1933), 1523 states have internal predecessors, (1933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:21,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1524 states to 1524 states and 1933 transitions. [2024-11-20 02:08:21,576 INFO L78 Accepts]: Start accepts. Automaton has 1524 states and 1933 transitions. Word has length 60 [2024-11-20 02:08:21,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:21,576 INFO L471 AbstractCegarLoop]: Abstraction has 1524 states and 1933 transitions. [2024-11-20 02:08:21,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.727272727272727) internal successors, (60), 22 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:21,577 INFO L276 IsEmpty]: Start isEmpty. Operand 1524 states and 1933 transitions. [2024-11-20 02:08:21,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-20 02:08:21,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:21,578 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:21,578 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2024-11-20 02:08:21,579 INFO L396 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:21,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:21,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1562026537, now seen corresponding path program 1 times [2024-11-20 02:08:21,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:21,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698826259] [2024-11-20 02:08:21,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:21,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:21,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:21,848 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:21,848 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:21,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698826259] [2024-11-20 02:08:21,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698826259] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:21,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:21,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-11-20 02:08:21,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [22111113] [2024-11-20 02:08:21,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:21,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-20 02:08:21,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:21,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-20 02:08:21,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-20 02:08:21,850 INFO L87 Difference]: Start difference. First operand 1524 states and 1933 transitions. Second operand has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:21,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:21,906 INFO L93 Difference]: Finished difference Result 1997 states and 2594 transitions. [2024-11-20 02:08:21,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 02:08:21,907 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-20 02:08:21,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:21,908 INFO L225 Difference]: With dead ends: 1997 [2024-11-20 02:08:21,908 INFO L226 Difference]: Without dead ends: 1519 [2024-11-20 02:08:21,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-11-20 02:08:21,909 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 28 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:21,909 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 1205 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:08:21,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2024-11-20 02:08:21,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1415. [2024-11-20 02:08:21,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 1414 states have (on average 1.2666195190947667) internal successors, (1791), 1414 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:21,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 1791 transitions. [2024-11-20 02:08:21,918 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 1791 transitions. Word has length 61 [2024-11-20 02:08:21,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:21,919 INFO L471 AbstractCegarLoop]: Abstraction has 1415 states and 1791 transitions. [2024-11-20 02:08:21,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 13 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:21,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 1791 transitions. [2024-11-20 02:08:21,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-20 02:08:21,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:21,920 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:21,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2024-11-20 02:08:21,920 INFO L396 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:21,921 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:21,921 INFO L85 PathProgramCache]: Analyzing trace with hash 404946561, now seen corresponding path program 1 times [2024-11-20 02:08:21,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:21,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298247805] [2024-11-20 02:08:21,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:21,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:21,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:22,381 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:22,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:22,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298247805] [2024-11-20 02:08:22,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298247805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:22,382 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:22,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-20 02:08:22,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533786774] [2024-11-20 02:08:22,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:22,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 02:08:22,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:22,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 02:08:22,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-20 02:08:22,383 INFO L87 Difference]: Start difference. First operand 1415 states and 1791 transitions. Second operand has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:22,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:22,573 INFO L93 Difference]: Finished difference Result 1957 states and 2536 transitions. [2024-11-20 02:08:22,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 02:08:22,573 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-20 02:08:22,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:22,575 INFO L225 Difference]: With dead ends: 1957 [2024-11-20 02:08:22,575 INFO L226 Difference]: Without dead ends: 1557 [2024-11-20 02:08:22,576 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-20 02:08:22,576 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 228 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:22,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 765 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:22,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2024-11-20 02:08:22,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1489. [2024-11-20 02:08:22,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1489 states, 1488 states have (on average 1.2701612903225807) internal successors, (1890), 1488 states have internal predecessors, (1890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:22,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1489 states to 1489 states and 1890 transitions. [2024-11-20 02:08:22,588 INFO L78 Accepts]: Start accepts. Automaton has 1489 states and 1890 transitions. Word has length 61 [2024-11-20 02:08:22,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:22,588 INFO L471 AbstractCegarLoop]: Abstraction has 1489 states and 1890 transitions. [2024-11-20 02:08:22,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.1) internal successors, (61), 10 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:22,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1489 states and 1890 transitions. [2024-11-20 02:08:22,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-20 02:08:22,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:22,590 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:22,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2024-11-20 02:08:22,590 INFO L396 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:22,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:22,590 INFO L85 PathProgramCache]: Analyzing trace with hash -724603067, now seen corresponding path program 1 times [2024-11-20 02:08:22,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:22,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542546457] [2024-11-20 02:08:22,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:22,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:23,011 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:23,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:23,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542546457] [2024-11-20 02:08:23,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542546457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:23,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:23,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-20 02:08:23,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618706726] [2024-11-20 02:08:23,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:23,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 02:08:23,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:23,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 02:08:23,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-20 02:08:23,012 INFO L87 Difference]: Start difference. First operand 1489 states and 1890 transitions. Second operand has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:23,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:23,064 INFO L93 Difference]: Finished difference Result 2109 states and 2710 transitions. [2024-11-20 02:08:23,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 02:08:23,064 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-20 02:08:23,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:23,066 INFO L225 Difference]: With dead ends: 2109 [2024-11-20 02:08:23,066 INFO L226 Difference]: Without dead ends: 1565 [2024-11-20 02:08:23,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-20 02:08:23,067 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 37 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 664 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:23,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 664 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:08:23,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2024-11-20 02:08:23,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1505. [2024-11-20 02:08:23,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1504 states have (on average 1.261968085106383) internal successors, (1898), 1504 states have internal predecessors, (1898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:23,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 1898 transitions. [2024-11-20 02:08:23,077 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 1898 transitions. Word has length 61 [2024-11-20 02:08:23,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:23,077 INFO L471 AbstractCegarLoop]: Abstraction has 1505 states and 1898 transitions. [2024-11-20 02:08:23,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.545454545454546) internal successors, (61), 11 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:23,077 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 1898 transitions. [2024-11-20 02:08:23,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-20 02:08:23,078 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:23,078 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:23,078 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2024-11-20 02:08:23,078 INFO L396 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:23,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:23,078 INFO L85 PathProgramCache]: Analyzing trace with hash -326233954, now seen corresponding path program 1 times [2024-11-20 02:08:23,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:23,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934550205] [2024-11-20 02:08:23,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:23,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:23,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:23,455 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:23,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:23,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934550205] [2024-11-20 02:08:23,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934550205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:23,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:23,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-20 02:08:23,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447233213] [2024-11-20 02:08:23,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:23,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 02:08:23,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:23,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 02:08:23,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-20 02:08:23,456 INFO L87 Difference]: Start difference. First operand 1505 states and 1898 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:23,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:23,519 INFO L93 Difference]: Finished difference Result 1992 states and 2576 transitions. [2024-11-20 02:08:23,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 02:08:23,520 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-20 02:08:23,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:23,521 INFO L225 Difference]: With dead ends: 1992 [2024-11-20 02:08:23,521 INFO L226 Difference]: Without dead ends: 1514 [2024-11-20 02:08:23,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2024-11-20 02:08:23,522 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 51 mSDsluCounter, 921 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:23,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 1038 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:23,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2024-11-20 02:08:23,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1432. [2024-11-20 02:08:23,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1432 states, 1431 states have (on average 1.2690426275331936) internal successors, (1816), 1431 states have internal predecessors, (1816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:23,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1432 states to 1432 states and 1816 transitions. [2024-11-20 02:08:23,530 INFO L78 Accepts]: Start accepts. Automaton has 1432 states and 1816 transitions. Word has length 61 [2024-11-20 02:08:23,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:23,531 INFO L471 AbstractCegarLoop]: Abstraction has 1432 states and 1816 transitions. [2024-11-20 02:08:23,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:23,531 INFO L276 IsEmpty]: Start isEmpty. Operand 1432 states and 1816 transitions. [2024-11-20 02:08:23,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-20 02:08:23,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:23,532 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:23,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2024-11-20 02:08:23,532 INFO L396 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:23,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:23,532 INFO L85 PathProgramCache]: Analyzing trace with hash -137726636, now seen corresponding path program 1 times [2024-11-20 02:08:23,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:23,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960934266] [2024-11-20 02:08:23,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:23,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:23,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:24,345 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:24,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:24,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960934266] [2024-11-20 02:08:24,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960934266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:24,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:24,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-20 02:08:24,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435954124] [2024-11-20 02:08:24,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:24,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-20 02:08:24,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:24,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-20 02:08:24,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:08:24,348 INFO L87 Difference]: Start difference. First operand 1432 states and 1816 transitions. Second operand has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:24,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:24,629 INFO L93 Difference]: Finished difference Result 1947 states and 2536 transitions. [2024-11-20 02:08:24,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-20 02:08:24,629 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-20 02:08:24,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:24,630 INFO L225 Difference]: With dead ends: 1947 [2024-11-20 02:08:24,630 INFO L226 Difference]: Without dead ends: 1495 [2024-11-20 02:08:24,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=59, Invalid=403, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:08:24,631 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 103 mSDsluCounter, 1365 mSDsCounter, 0 mSdLazyCounter, 723 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 723 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:24,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 1473 Invalid, 723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 723 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 02:08:24,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1495 states. [2024-11-20 02:08:24,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1495 to 1444. [2024-11-20 02:08:24,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1444 states, 1443 states have (on average 1.2681912681912682) internal successors, (1830), 1443 states have internal predecessors, (1830), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:24,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1444 states to 1444 states and 1830 transitions. [2024-11-20 02:08:24,641 INFO L78 Accepts]: Start accepts. Automaton has 1444 states and 1830 transitions. Word has length 61 [2024-11-20 02:08:24,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:24,641 INFO L471 AbstractCegarLoop]: Abstraction has 1444 states and 1830 transitions. [2024-11-20 02:08:24,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:24,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1444 states and 1830 transitions. [2024-11-20 02:08:24,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-20 02:08:24,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:24,642 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:24,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2024-11-20 02:08:24,642 INFO L396 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:24,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:24,642 INFO L85 PathProgramCache]: Analyzing trace with hash -24370241, now seen corresponding path program 1 times [2024-11-20 02:08:24,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:24,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014376521] [2024-11-20 02:08:24,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:24,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:24,969 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:24,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:24,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014376521] [2024-11-20 02:08:24,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014376521] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:24,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:24,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-20 02:08:24,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558705384] [2024-11-20 02:08:24,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:24,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-20 02:08:24,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:24,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-20 02:08:24,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-20 02:08:24,971 INFO L87 Difference]: Start difference. First operand 1444 states and 1830 transitions. Second operand has 16 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:25,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:25,024 INFO L93 Difference]: Finished difference Result 1983 states and 2569 transitions. [2024-11-20 02:08:25,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 02:08:25,025 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-20 02:08:25,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:25,026 INFO L225 Difference]: With dead ends: 1983 [2024-11-20 02:08:25,026 INFO L226 Difference]: Without dead ends: 1530 [2024-11-20 02:08:25,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2024-11-20 02:08:25,027 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 32 mSDsluCounter, 960 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 1080 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:25,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 1080 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:08:25,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2024-11-20 02:08:25,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1455. [2024-11-20 02:08:25,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1454 states have (on average 1.265474552957359) internal successors, (1840), 1454 states have internal predecessors, (1840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:25,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1840 transitions. [2024-11-20 02:08:25,037 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1840 transitions. Word has length 61 [2024-11-20 02:08:25,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:25,037 INFO L471 AbstractCegarLoop]: Abstraction has 1455 states and 1840 transitions. [2024-11-20 02:08:25,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.8125) internal successors, (61), 16 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:25,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1840 transitions. [2024-11-20 02:08:25,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-20 02:08:25,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:25,038 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:25,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2024-11-20 02:08:25,038 INFO L396 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:25,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:25,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1945359219, now seen corresponding path program 1 times [2024-11-20 02:08:25,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:25,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864727880] [2024-11-20 02:08:25,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:25,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:25,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:25,301 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:25,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:25,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864727880] [2024-11-20 02:08:25,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864727880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:25,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:25,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 02:08:25,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388618997] [2024-11-20 02:08:25,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:25,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 02:08:25,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:25,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 02:08:25,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-20 02:08:25,303 INFO L87 Difference]: Start difference. First operand 1455 states and 1840 transitions. Second operand has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:25,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:25,432 INFO L93 Difference]: Finished difference Result 1941 states and 2516 transitions. [2024-11-20 02:08:25,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-20 02:08:25,433 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-20 02:08:25,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:25,434 INFO L225 Difference]: With dead ends: 1941 [2024-11-20 02:08:25,434 INFO L226 Difference]: Without dead ends: 1489 [2024-11-20 02:08:25,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-20 02:08:25,435 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 176 mSDsluCounter, 654 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 810 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:25,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 810 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:25,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2024-11-20 02:08:25,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1451. [2024-11-20 02:08:25,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1451 states, 1450 states have (on average 1.2648275862068965) internal successors, (1834), 1450 states have internal predecessors, (1834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:25,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1451 states to 1451 states and 1834 transitions. [2024-11-20 02:08:25,443 INFO L78 Accepts]: Start accepts. Automaton has 1451 states and 1834 transitions. Word has length 61 [2024-11-20 02:08:25,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:25,443 INFO L471 AbstractCegarLoop]: Abstraction has 1451 states and 1834 transitions. [2024-11-20 02:08:25,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.777777777777778) internal successors, (61), 9 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:25,443 INFO L276 IsEmpty]: Start isEmpty. Operand 1451 states and 1834 transitions. [2024-11-20 02:08:25,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-20 02:08:25,444 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:25,444 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:25,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2024-11-20 02:08:25,444 INFO L396 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:25,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:25,444 INFO L85 PathProgramCache]: Analyzing trace with hash -687766796, now seen corresponding path program 1 times [2024-11-20 02:08:25,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:25,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448266498] [2024-11-20 02:08:25,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:25,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:25,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:25,875 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:25,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:25,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448266498] [2024-11-20 02:08:25,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448266498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:25,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:25,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2024-11-20 02:08:25,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108886019] [2024-11-20 02:08:25,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:25,876 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-20 02:08:25,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:25,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-20 02:08:25,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2024-11-20 02:08:25,876 INFO L87 Difference]: Start difference. First operand 1451 states and 1834 transitions. Second operand has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:25,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:25,977 INFO L93 Difference]: Finished difference Result 2005 states and 2600 transitions. [2024-11-20 02:08:25,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-20 02:08:25,978 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-20 02:08:25,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:25,979 INFO L225 Difference]: With dead ends: 2005 [2024-11-20 02:08:25,979 INFO L226 Difference]: Without dead ends: 1555 [2024-11-20 02:08:25,979 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=329, Unknown=0, NotChecked=0, Total=380 [2024-11-20 02:08:25,980 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 69 mSDsluCounter, 1160 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 1272 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:25,980 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 1272 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:25,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2024-11-20 02:08:25,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1463. [2024-11-20 02:08:25,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1462 states have (on average 1.2633378932968535) internal successors, (1847), 1462 states have internal predecessors, (1847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:25,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1847 transitions. [2024-11-20 02:08:25,989 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1847 transitions. Word has length 61 [2024-11-20 02:08:25,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:25,989 INFO L471 AbstractCegarLoop]: Abstraction has 1463 states and 1847 transitions. [2024-11-20 02:08:25,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.05) internal successors, (61), 20 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:25,989 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1847 transitions. [2024-11-20 02:08:25,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-20 02:08:25,990 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:25,990 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:25,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2024-11-20 02:08:25,990 INFO L396 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:25,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:25,990 INFO L85 PathProgramCache]: Analyzing trace with hash -438442437, now seen corresponding path program 1 times [2024-11-20 02:08:25,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:25,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363837095] [2024-11-20 02:08:25,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:25,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:26,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:26,679 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:26,679 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:26,679 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363837095] [2024-11-20 02:08:26,679 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363837095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:26,679 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:26,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-20 02:08:26,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663800111] [2024-11-20 02:08:26,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:26,680 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-20 02:08:26,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:26,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-20 02:08:26,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:08:26,680 INFO L87 Difference]: Start difference. First operand 1463 states and 1847 transitions. Second operand has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:26,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:26,979 INFO L93 Difference]: Finished difference Result 1993 states and 2585 transitions. [2024-11-20 02:08:26,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-20 02:08:26,980 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-20 02:08:26,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:26,981 INFO L225 Difference]: With dead ends: 1993 [2024-11-20 02:08:26,981 INFO L226 Difference]: Without dead ends: 1543 [2024-11-20 02:08:26,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:08:26,982 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 98 mSDsluCounter, 1487 mSDsCounter, 0 mSdLazyCounter, 630 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 1594 SdHoareTripleChecker+Invalid, 631 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:26,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 1594 Invalid, 631 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 630 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 02:08:26,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2024-11-20 02:08:26,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1473. [2024-11-20 02:08:26,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1473 states, 1472 states have (on average 1.2642663043478262) internal successors, (1861), 1472 states have internal predecessors, (1861), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:26,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1473 states to 1473 states and 1861 transitions. [2024-11-20 02:08:26,991 INFO L78 Accepts]: Start accepts. Automaton has 1473 states and 1861 transitions. Word has length 61 [2024-11-20 02:08:26,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:26,991 INFO L471 AbstractCegarLoop]: Abstraction has 1473 states and 1861 transitions. [2024-11-20 02:08:26,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:26,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1473 states and 1861 transitions. [2024-11-20 02:08:26,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-20 02:08:26,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:26,992 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:26,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2024-11-20 02:08:26,993 INFO L396 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:26,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:26,993 INFO L85 PathProgramCache]: Analyzing trace with hash 210036934, now seen corresponding path program 1 times [2024-11-20 02:08:26,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:26,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281480999] [2024-11-20 02:08:26,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:26,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:27,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:27,683 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:27,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:27,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281480999] [2024-11-20 02:08:27,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281480999] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:27,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:27,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-20 02:08:27,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549784644] [2024-11-20 02:08:27,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:27,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-20 02:08:27,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:27,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-20 02:08:27,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:08:27,684 INFO L87 Difference]: Start difference. First operand 1473 states and 1861 transitions. Second operand has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:27,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:27,904 INFO L93 Difference]: Finished difference Result 1999 states and 2588 transitions. [2024-11-20 02:08:27,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-20 02:08:27,905 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-20 02:08:27,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:27,906 INFO L225 Difference]: With dead ends: 1999 [2024-11-20 02:08:27,906 INFO L226 Difference]: Without dead ends: 1549 [2024-11-20 02:08:27,907 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:08:27,907 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 66 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 565 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 1501 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:27,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 1501 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 565 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:08:27,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1549 states. [2024-11-20 02:08:27,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1549 to 1455. [2024-11-20 02:08:27,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 1454 states have (on average 1.266162310866575) internal successors, (1841), 1454 states have internal predecessors, (1841), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:27,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1841 transitions. [2024-11-20 02:08:27,916 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1841 transitions. Word has length 61 [2024-11-20 02:08:27,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:27,916 INFO L471 AbstractCegarLoop]: Abstraction has 1455 states and 1841 transitions. [2024-11-20 02:08:27,916 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:27,916 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1841 transitions. [2024-11-20 02:08:27,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-20 02:08:27,917 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:27,917 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:27,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2024-11-20 02:08:27,917 INFO L396 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:27,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:27,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1063499396, now seen corresponding path program 1 times [2024-11-20 02:08:27,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:27,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987968674] [2024-11-20 02:08:27,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:27,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:27,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:28,442 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:28,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:28,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987968674] [2024-11-20 02:08:28,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987968674] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:28,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:28,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-20 02:08:28,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260180621] [2024-11-20 02:08:28,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:28,443 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-20 02:08:28,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:28,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-20 02:08:28,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:08:28,443 INFO L87 Difference]: Start difference. First operand 1455 states and 1841 transitions. Second operand has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:28,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:28,561 INFO L93 Difference]: Finished difference Result 2005 states and 2593 transitions. [2024-11-20 02:08:28,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-20 02:08:28,561 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-20 02:08:28,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:28,562 INFO L225 Difference]: With dead ends: 2005 [2024-11-20 02:08:28,562 INFO L226 Difference]: Without dead ends: 1555 [2024-11-20 02:08:28,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:08:28,563 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 72 mSDsluCounter, 1387 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 1503 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:28,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 1503 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:28,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2024-11-20 02:08:28,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1463. [2024-11-20 02:08:28,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1463 states, 1462 states have (on average 1.2660738714090287) internal successors, (1851), 1462 states have internal predecessors, (1851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:28,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1463 states to 1463 states and 1851 transitions. [2024-11-20 02:08:28,573 INFO L78 Accepts]: Start accepts. Automaton has 1463 states and 1851 transitions. Word has length 61 [2024-11-20 02:08:28,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:28,573 INFO L471 AbstractCegarLoop]: Abstraction has 1463 states and 1851 transitions. [2024-11-20 02:08:28,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.772727272727273) internal successors, (61), 22 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:28,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1463 states and 1851 transitions. [2024-11-20 02:08:28,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-20 02:08:28,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:28,574 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:28,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2024-11-20 02:08:28,574 INFO L396 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:28,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:28,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1943724665, now seen corresponding path program 1 times [2024-11-20 02:08:28,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:28,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962706463] [2024-11-20 02:08:28,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:28,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:28,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:29,287 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:29,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:29,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962706463] [2024-11-20 02:08:29,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962706463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:29,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:29,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-20 02:08:29,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442878424] [2024-11-20 02:08:29,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:29,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-20 02:08:29,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:29,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-20 02:08:29,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:08:29,289 INFO L87 Difference]: Start difference. First operand 1463 states and 1851 transitions. Second operand has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:29,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:29,487 INFO L93 Difference]: Finished difference Result 2003 states and 2593 transitions. [2024-11-20 02:08:29,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-20 02:08:29,487 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-20 02:08:29,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:29,489 INFO L225 Difference]: With dead ends: 2003 [2024-11-20 02:08:29,489 INFO L226 Difference]: Without dead ends: 1553 [2024-11-20 02:08:29,489 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:08:29,490 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 59 mSDsluCounter, 1379 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 1484 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:29,490 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 1484 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:08:29,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1553 states. [2024-11-20 02:08:29,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1553 to 1445. [2024-11-20 02:08:29,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.268005540166205) internal successors, (1831), 1444 states have internal predecessors, (1831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:29,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1831 transitions. [2024-11-20 02:08:29,499 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1831 transitions. Word has length 61 [2024-11-20 02:08:29,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:29,499 INFO L471 AbstractCegarLoop]: Abstraction has 1445 states and 1831 transitions. [2024-11-20 02:08:29,499 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:29,499 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1831 transitions. [2024-11-20 02:08:29,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-20 02:08:29,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:29,500 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:29,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2024-11-20 02:08:29,500 INFO L396 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:29,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:29,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1068384958, now seen corresponding path program 1 times [2024-11-20 02:08:29,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:29,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240854925] [2024-11-20 02:08:29,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:29,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:29,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:29,955 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:29,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:29,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240854925] [2024-11-20 02:08:29,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240854925] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:29,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:29,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2024-11-20 02:08:29,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140829177] [2024-11-20 02:08:29,955 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:29,955 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-20 02:08:29,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:29,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-20 02:08:29,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:08:29,956 INFO L87 Difference]: Start difference. First operand 1445 states and 1831 transitions. Second operand has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:30,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:30,076 INFO L93 Difference]: Finished difference Result 2017 states and 2603 transitions. [2024-11-20 02:08:30,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-20 02:08:30,077 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-20 02:08:30,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:30,078 INFO L225 Difference]: With dead ends: 2017 [2024-11-20 02:08:30,078 INFO L226 Difference]: Without dead ends: 1555 [2024-11-20 02:08:30,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=366, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:08:30,079 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 48 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:30,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 1880 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:30,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1555 states. [2024-11-20 02:08:30,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1555 to 1471. [2024-11-20 02:08:30,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1471 states, 1470 states have (on average 1.2625850340136053) internal successors, (1856), 1470 states have internal predecessors, (1856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:30,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1471 states to 1471 states and 1856 transitions. [2024-11-20 02:08:30,087 INFO L78 Accepts]: Start accepts. Automaton has 1471 states and 1856 transitions. Word has length 61 [2024-11-20 02:08:30,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:30,087 INFO L471 AbstractCegarLoop]: Abstraction has 1471 states and 1856 transitions. [2024-11-20 02:08:30,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:30,087 INFO L276 IsEmpty]: Start isEmpty. Operand 1471 states and 1856 transitions. [2024-11-20 02:08:30,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-20 02:08:30,088 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:30,088 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:30,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2024-11-20 02:08:30,088 INFO L396 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:30,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:30,089 INFO L85 PathProgramCache]: Analyzing trace with hash 1752358164, now seen corresponding path program 1 times [2024-11-20 02:08:30,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:30,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284708143] [2024-11-20 02:08:30,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:30,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:30,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:30,588 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:30,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:30,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284708143] [2024-11-20 02:08:30,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284708143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:30,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:30,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-20 02:08:30,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153990304] [2024-11-20 02:08:30,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:30,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-20 02:08:30,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:30,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-20 02:08:30,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2024-11-20 02:08:30,590 INFO L87 Difference]: Start difference. First operand 1471 states and 1856 transitions. Second operand has 23 states, 23 states have (on average 2.652173913043478) internal successors, (61), 23 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:30,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:30,719 INFO L93 Difference]: Finished difference Result 2110 states and 2724 transitions. [2024-11-20 02:08:30,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-20 02:08:30,720 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.652173913043478) internal successors, (61), 23 states have internal predecessors, (61), 0 states have call successors, (0), 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 61 [2024-11-20 02:08:30,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:30,721 INFO L225 Difference]: With dead ends: 2110 [2024-11-20 02:08:30,721 INFO L226 Difference]: Without dead ends: 1660 [2024-11-20 02:08:30,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2024-11-20 02:08:30,722 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 53 mSDsluCounter, 1620 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 1736 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:30,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 1736 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:30,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2024-11-20 02:08:30,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1466. [2024-11-20 02:08:30,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1466 states, 1465 states have (on average 1.2655290102389078) internal successors, (1854), 1465 states have internal predecessors, (1854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:30,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1466 states to 1466 states and 1854 transitions. [2024-11-20 02:08:30,731 INFO L78 Accepts]: Start accepts. Automaton has 1466 states and 1854 transitions. Word has length 61 [2024-11-20 02:08:30,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:30,731 INFO L471 AbstractCegarLoop]: Abstraction has 1466 states and 1854 transitions. [2024-11-20 02:08:30,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.652173913043478) internal successors, (61), 23 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:30,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1466 states and 1854 transitions. [2024-11-20 02:08:30,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-20 02:08:30,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:30,732 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:30,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2024-11-20 02:08:30,732 INFO L396 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:30,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:30,733 INFO L85 PathProgramCache]: Analyzing trace with hash 73959588, now seen corresponding path program 1 times [2024-11-20 02:08:30,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:30,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887177639] [2024-11-20 02:08:30,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:30,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:30,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:30,918 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:30,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:30,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887177639] [2024-11-20 02:08:30,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887177639] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 02:08:30,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423654313] [2024-11-20 02:08:30,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:30,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:08:30,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 02:08:30,921 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 02:08:30,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 02:08:31,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:31,217 INFO L255 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 94 conjuncts are in the unsatisfiable core [2024-11-20 02:08:31,220 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 02:08:31,742 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:31,742 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 02:08:31,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423654313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:31,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 02:08:31,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [6] total 21 [2024-11-20 02:08:31,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652457783] [2024-11-20 02:08:31,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:31,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-20 02:08:31,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:31,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-20 02:08:31,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:08:31,743 INFO L87 Difference]: Start difference. First operand 1466 states and 1854 transitions. Second operand has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 17 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:32,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:32,109 INFO L93 Difference]: Finished difference Result 2622 states and 3377 transitions. [2024-11-20 02:08:32,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-20 02:08:32,110 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 17 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-20 02:08:32,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:32,112 INFO L225 Difference]: With dead ends: 2622 [2024-11-20 02:08:32,112 INFO L226 Difference]: Without dead ends: 2172 [2024-11-20 02:08:32,112 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2024-11-20 02:08:32,112 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 176 mSDsluCounter, 1522 mSDsCounter, 0 mSdLazyCounter, 1010 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1660 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:32,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 1660 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1010 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 02:08:32,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2172 states. [2024-11-20 02:08:32,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2172 to 1480. [2024-11-20 02:08:32,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1480 states, 1479 states have (on average 1.2691007437457742) internal successors, (1877), 1479 states have internal predecessors, (1877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:32,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1480 states to 1480 states and 1877 transitions. [2024-11-20 02:08:32,122 INFO L78 Accepts]: Start accepts. Automaton has 1480 states and 1877 transitions. Word has length 62 [2024-11-20 02:08:32,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:32,122 INFO L471 AbstractCegarLoop]: Abstraction has 1480 states and 1877 transitions. [2024-11-20 02:08:32,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 17 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:32,122 INFO L276 IsEmpty]: Start isEmpty. Operand 1480 states and 1877 transitions. [2024-11-20 02:08:32,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-20 02:08:32,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:32,123 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:32,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-20 02:08:32,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:08:32,324 INFO L396 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:32,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:32,325 INFO L85 PathProgramCache]: Analyzing trace with hash 323283947, now seen corresponding path program 1 times [2024-11-20 02:08:32,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:32,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930233873] [2024-11-20 02:08:32,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:32,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:32,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:32,587 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:32,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:32,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930233873] [2024-11-20 02:08:32,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930233873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:32,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:32,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-20 02:08:32,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978690654] [2024-11-20 02:08:32,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:32,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 02:08:32,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:32,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 02:08:32,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-20 02:08:32,588 INFO L87 Difference]: Start difference. First operand 1480 states and 1877 transitions. Second operand has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:32,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:32,630 INFO L93 Difference]: Finished difference Result 1974 states and 2572 transitions. [2024-11-20 02:08:32,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-20 02:08:32,631 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-20 02:08:32,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:32,632 INFO L225 Difference]: With dead ends: 1974 [2024-11-20 02:08:32,632 INFO L226 Difference]: Without dead ends: 1380 [2024-11-20 02:08:32,633 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-20 02:08:32,633 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 24 mSDsluCounter, 903 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:32,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 1021 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:08:32,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2024-11-20 02:08:32,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1116. [2024-11-20 02:08:32,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1115 states have (on average 1.2968609865470853) internal successors, (1446), 1115 states have internal predecessors, (1446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:32,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1446 transitions. [2024-11-20 02:08:32,640 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1446 transitions. Word has length 62 [2024-11-20 02:08:32,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:32,641 INFO L471 AbstractCegarLoop]: Abstraction has 1116 states and 1446 transitions. [2024-11-20 02:08:32,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 5.166666666666667) internal successors, (62), 12 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:32,641 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1446 transitions. [2024-11-20 02:08:32,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-20 02:08:32,642 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:32,642 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:32,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2024-11-20 02:08:32,642 INFO L396 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:32,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:32,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1864220907, now seen corresponding path program 1 times [2024-11-20 02:08:32,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:32,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034483334] [2024-11-20 02:08:32,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:32,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:33,005 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:33,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:33,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034483334] [2024-11-20 02:08:33,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034483334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:33,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:33,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-20 02:08:33,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323891824] [2024-11-20 02:08:33,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:33,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 02:08:33,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:33,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 02:08:33,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-20 02:08:33,006 INFO L87 Difference]: Start difference. First operand 1116 states and 1446 transitions. Second operand has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:33,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:33,069 INFO L93 Difference]: Finished difference Result 1659 states and 2196 transitions. [2024-11-20 02:08:33,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 02:08:33,070 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-20 02:08:33,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:33,071 INFO L225 Difference]: With dead ends: 1659 [2024-11-20 02:08:33,071 INFO L226 Difference]: Without dead ends: 1145 [2024-11-20 02:08:33,071 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-20 02:08:33,071 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 40 mSDsluCounter, 993 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 1109 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:33,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 1109 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:33,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1145 states. [2024-11-20 02:08:33,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1145 to 1028. [2024-11-20 02:08:33,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 1027 states have (on average 1.3037974683544304) internal successors, (1339), 1027 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:33,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1339 transitions. [2024-11-20 02:08:33,078 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1339 transitions. Word has length 62 [2024-11-20 02:08:33,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:33,078 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1339 transitions. [2024-11-20 02:08:33,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:33,078 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1339 transitions. [2024-11-20 02:08:33,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-20 02:08:33,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:33,079 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:33,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2024-11-20 02:08:33,079 INFO L396 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:33,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:33,079 INFO L85 PathProgramCache]: Analyzing trace with hash -517598844, now seen corresponding path program 1 times [2024-11-20 02:08:33,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:33,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145157033] [2024-11-20 02:08:33,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:33,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:33,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:33,418 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:33,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:33,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145157033] [2024-11-20 02:08:33,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145157033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:33,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:33,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-20 02:08:33,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882543536] [2024-11-20 02:08:33,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:33,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-20 02:08:33,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:33,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-20 02:08:33,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-20 02:08:33,419 INFO L87 Difference]: Start difference. First operand 1028 states and 1339 transitions. Second operand has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:33,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:33,489 INFO L93 Difference]: Finished difference Result 1634 states and 2165 transitions. [2024-11-20 02:08:33,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 02:08:33,490 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-20 02:08:33,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:33,490 INFO L225 Difference]: With dead ends: 1634 [2024-11-20 02:08:33,491 INFO L226 Difference]: Without dead ends: 1163 [2024-11-20 02:08:33,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-20 02:08:33,491 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 38 mSDsluCounter, 1230 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 1345 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:33,491 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 1345 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:33,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1163 states. [2024-11-20 02:08:33,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1163 to 1054. [2024-11-20 02:08:33,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1054 states, 1053 states have (on average 1.2972459639126306) internal successors, (1366), 1053 states have internal predecessors, (1366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:33,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1054 states to 1054 states and 1366 transitions. [2024-11-20 02:08:33,498 INFO L78 Accepts]: Start accepts. Automaton has 1054 states and 1366 transitions. Word has length 62 [2024-11-20 02:08:33,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:33,498 INFO L471 AbstractCegarLoop]: Abstraction has 1054 states and 1366 transitions. [2024-11-20 02:08:33,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:33,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1054 states and 1366 transitions. [2024-11-20 02:08:33,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-20 02:08:33,499 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:33,499 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:33,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2024-11-20 02:08:33,499 INFO L396 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:33,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:33,500 INFO L85 PathProgramCache]: Analyzing trace with hash -2147151565, now seen corresponding path program 1 times [2024-11-20 02:08:33,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:33,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104905041] [2024-11-20 02:08:33,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:33,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:33,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:33,851 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:33,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:33,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104905041] [2024-11-20 02:08:33,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104905041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:33,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:33,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-20 02:08:33,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611672101] [2024-11-20 02:08:33,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:33,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 02:08:33,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:33,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 02:08:33,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-20 02:08:33,852 INFO L87 Difference]: Start difference. First operand 1054 states and 1366 transitions. Second operand has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:33,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:33,927 INFO L93 Difference]: Finished difference Result 1623 states and 2145 transitions. [2024-11-20 02:08:33,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 02:08:33,927 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-20 02:08:33,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:33,928 INFO L225 Difference]: With dead ends: 1623 [2024-11-20 02:08:33,928 INFO L226 Difference]: Without dead ends: 1126 [2024-11-20 02:08:33,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-20 02:08:33,929 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 37 mSDsluCounter, 990 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 1103 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:33,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 1103 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:33,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1126 states. [2024-11-20 02:08:33,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1126 to 1062. [2024-11-20 02:08:33,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 1061 states have (on average 1.293119698397738) internal successors, (1372), 1061 states have internal predecessors, (1372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:33,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1372 transitions. [2024-11-20 02:08:33,936 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1372 transitions. Word has length 62 [2024-11-20 02:08:33,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:33,936 INFO L471 AbstractCegarLoop]: Abstraction has 1062 states and 1372 transitions. [2024-11-20 02:08:33,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:33,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1372 transitions. [2024-11-20 02:08:33,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-20 02:08:33,937 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:33,937 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:33,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2024-11-20 02:08:33,937 INFO L396 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:33,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:33,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1768650428, now seen corresponding path program 1 times [2024-11-20 02:08:33,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:33,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304405918] [2024-11-20 02:08:33,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:33,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:33,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:34,280 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:34,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:34,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304405918] [2024-11-20 02:08:34,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304405918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:34,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:34,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-20 02:08:34,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138047394] [2024-11-20 02:08:34,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:34,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 02:08:34,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:34,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 02:08:34,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-20 02:08:34,281 INFO L87 Difference]: Start difference. First operand 1062 states and 1372 transitions. Second operand has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:34,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:34,326 INFO L93 Difference]: Finished difference Result 1578 states and 2090 transitions. [2024-11-20 02:08:34,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 02:08:34,326 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-20 02:08:34,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:34,327 INFO L225 Difference]: With dead ends: 1578 [2024-11-20 02:08:34,327 INFO L226 Difference]: Without dead ends: 1075 [2024-11-20 02:08:34,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-20 02:08:34,328 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 34 mSDsluCounter, 717 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 833 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:34,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 833 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 02:08:34,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2024-11-20 02:08:34,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 959. [2024-11-20 02:08:34,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 958 states have (on average 1.313152400835073) internal successors, (1258), 958 states have internal predecessors, (1258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:34,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1258 transitions. [2024-11-20 02:08:34,353 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1258 transitions. Word has length 62 [2024-11-20 02:08:34,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:34,354 INFO L471 AbstractCegarLoop]: Abstraction has 959 states and 1258 transitions. [2024-11-20 02:08:34,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 4.133333333333334) internal successors, (62), 15 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:34,354 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1258 transitions. [2024-11-20 02:08:34,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-20 02:08:34,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:34,356 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:34,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2024-11-20 02:08:34,356 INFO L396 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:34,356 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:34,356 INFO L85 PathProgramCache]: Analyzing trace with hash -549258155, now seen corresponding path program 1 times [2024-11-20 02:08:34,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:34,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878903708] [2024-11-20 02:08:34,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:34,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:34,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:34,951 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:34,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:34,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878903708] [2024-11-20 02:08:34,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878903708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:34,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:34,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-20 02:08:34,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393176742] [2024-11-20 02:08:34,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:34,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-20 02:08:34,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:34,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-20 02:08:34,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:08:34,953 INFO L87 Difference]: Start difference. First operand 959 states and 1258 transitions. Second operand has 22 states, 22 states have (on average 2.8181818181818183) internal successors, (62), 22 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:35,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:35,098 INFO L93 Difference]: Finished difference Result 1500 states and 2007 transitions. [2024-11-20 02:08:35,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-20 02:08:35,099 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.8181818181818183) internal successors, (62), 22 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-20 02:08:35,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:35,100 INFO L225 Difference]: With dead ends: 1500 [2024-11-20 02:08:35,100 INFO L226 Difference]: Without dead ends: 1015 [2024-11-20 02:08:35,100 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=409, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:08:35,100 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 74 mSDsluCounter, 1630 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 1745 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:35,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 1745 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:35,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2024-11-20 02:08:35,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 941. [2024-11-20 02:08:35,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 940 states have (on average 1.3170212765957447) internal successors, (1238), 940 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:35,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1238 transitions. [2024-11-20 02:08:35,106 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1238 transitions. Word has length 62 [2024-11-20 02:08:35,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:35,106 INFO L471 AbstractCegarLoop]: Abstraction has 941 states and 1238 transitions. [2024-11-20 02:08:35,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.8181818181818183) internal successors, (62), 22 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:35,106 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1238 transitions. [2024-11-20 02:08:35,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-20 02:08:35,107 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:35,107 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:35,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2024-11-20 02:08:35,107 INFO L396 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:35,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:35,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1225259584, now seen corresponding path program 1 times [2024-11-20 02:08:35,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:35,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524025885] [2024-11-20 02:08:35,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:35,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:35,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:35,685 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:35,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:35,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524025885] [2024-11-20 02:08:35,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524025885] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:35,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:35,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2024-11-20 02:08:35,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864552862] [2024-11-20 02:08:35,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:35,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-20 02:08:35,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:35,686 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-20 02:08:35,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2024-11-20 02:08:35,686 INFO L87 Difference]: Start difference. First operand 941 states and 1238 transitions. Second operand has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 23 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:35,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:35,799 INFO L93 Difference]: Finished difference Result 1512 states and 2018 transitions. [2024-11-20 02:08:35,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-20 02:08:35,799 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 23 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-20 02:08:35,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:35,800 INFO L225 Difference]: With dead ends: 1512 [2024-11-20 02:08:35,800 INFO L226 Difference]: Without dead ends: 1041 [2024-11-20 02:08:35,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2024-11-20 02:08:35,801 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 62 mSDsluCounter, 1225 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1335 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:35,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 1335 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:35,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2024-11-20 02:08:35,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 941. [2024-11-20 02:08:35,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 941 states, 940 states have (on average 1.3170212765957447) internal successors, (1238), 940 states have internal predecessors, (1238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:35,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1238 transitions. [2024-11-20 02:08:35,807 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1238 transitions. Word has length 62 [2024-11-20 02:08:35,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:35,807 INFO L471 AbstractCegarLoop]: Abstraction has 941 states and 1238 transitions. [2024-11-20 02:08:35,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.6956521739130435) internal successors, (62), 23 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:35,807 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1238 transitions. [2024-11-20 02:08:35,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-20 02:08:35,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:35,808 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:35,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2024-11-20 02:08:35,808 INFO L396 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:35,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:35,808 INFO L85 PathProgramCache]: Analyzing trace with hash 345034315, now seen corresponding path program 1 times [2024-11-20 02:08:35,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:35,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096050519] [2024-11-20 02:08:35,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:35,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:36,514 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:36,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:36,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096050519] [2024-11-20 02:08:36,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096050519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:36,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:36,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2024-11-20 02:08:36,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245668788] [2024-11-20 02:08:36,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:36,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-20 02:08:36,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:36,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-20 02:08:36,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=406, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:08:36,515 INFO L87 Difference]: Start difference. First operand 941 states and 1238 transitions. Second operand has 22 states, 22 states have (on average 2.8181818181818183) internal successors, (62), 22 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:36,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:36,725 INFO L93 Difference]: Finished difference Result 1510 states and 2018 transitions. [2024-11-20 02:08:36,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-20 02:08:36,726 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.8181818181818183) internal successors, (62), 22 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-20 02:08:36,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:36,726 INFO L225 Difference]: With dead ends: 1510 [2024-11-20 02:08:36,726 INFO L226 Difference]: Without dead ends: 1039 [2024-11-20 02:08:36,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2024-11-20 02:08:36,727 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 62 mSDsluCounter, 1377 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 1476 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:36,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 1476 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:08:36,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2024-11-20 02:08:36,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 925. [2024-11-20 02:08:36,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 925 states, 924 states have (on average 1.3203463203463204) internal successors, (1220), 924 states have internal predecessors, (1220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:36,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 925 states to 925 states and 1220 transitions. [2024-11-20 02:08:36,734 INFO L78 Accepts]: Start accepts. Automaton has 925 states and 1220 transitions. Word has length 62 [2024-11-20 02:08:36,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:36,734 INFO L471 AbstractCegarLoop]: Abstraction has 925 states and 1220 transitions. [2024-11-20 02:08:36,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.8181818181818183) internal successors, (62), 22 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:36,734 INFO L276 IsEmpty]: Start isEmpty. Operand 925 states and 1220 transitions. [2024-11-20 02:08:36,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-20 02:08:36,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:36,735 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:36,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2024-11-20 02:08:36,735 INFO L396 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:36,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:36,736 INFO L85 PathProgramCache]: Analyzing trace with hash 293878304, now seen corresponding path program 1 times [2024-11-20 02:08:36,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:36,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920776460] [2024-11-20 02:08:36,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:36,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:36,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:37,310 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:37,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:37,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920776460] [2024-11-20 02:08:37,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920776460] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:37,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:37,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 02:08:37,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483888860] [2024-11-20 02:08:37,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:37,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 02:08:37,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:37,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 02:08:37,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:08:37,311 INFO L87 Difference]: Start difference. First operand 925 states and 1220 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:37,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:37,736 INFO L93 Difference]: Finished difference Result 1557 states and 2069 transitions. [2024-11-20 02:08:37,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 02:08:37,736 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-20 02:08:37,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:37,737 INFO L225 Difference]: With dead ends: 1557 [2024-11-20 02:08:37,737 INFO L226 Difference]: Without dead ends: 868 [2024-11-20 02:08:37,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-20 02:08:37,737 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 127 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:37,738 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 365 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 02:08:37,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 868 states. [2024-11-20 02:08:37,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 868 to 868. [2024-11-20 02:08:37,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 868 states, 867 states have (on average 1.3114186851211074) internal successors, (1137), 867 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:37,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 868 states to 868 states and 1137 transitions. [2024-11-20 02:08:37,743 INFO L78 Accepts]: Start accepts. Automaton has 868 states and 1137 transitions. Word has length 62 [2024-11-20 02:08:37,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:37,743 INFO L471 AbstractCegarLoop]: Abstraction has 868 states and 1137 transitions. [2024-11-20 02:08:37,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:37,744 INFO L276 IsEmpty]: Start isEmpty. Operand 868 states and 1137 transitions. [2024-11-20 02:08:37,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-20 02:08:37,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:37,744 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:37,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2024-11-20 02:08:37,744 INFO L396 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:37,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:37,745 INFO L85 PathProgramCache]: Analyzing trace with hash -2048221825, now seen corresponding path program 1 times [2024-11-20 02:08:37,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:37,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004805229] [2024-11-20 02:08:37,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:37,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:37,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:38,198 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:38,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:38,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004805229] [2024-11-20 02:08:38,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004805229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:38,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:38,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-20 02:08:38,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977731623] [2024-11-20 02:08:38,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:38,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-20 02:08:38,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:38,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-20 02:08:38,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-20 02:08:38,200 INFO L87 Difference]: Start difference. First operand 868 states and 1137 transitions. Second operand has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:38,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:38,431 INFO L93 Difference]: Finished difference Result 1701 states and 2270 transitions. [2024-11-20 02:08:38,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 02:08:38,431 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-20 02:08:38,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:38,432 INFO L225 Difference]: With dead ends: 1701 [2024-11-20 02:08:38,432 INFO L226 Difference]: Without dead ends: 1232 [2024-11-20 02:08:38,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2024-11-20 02:08:38,433 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 287 mSDsluCounter, 1076 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 287 SdHoareTripleChecker+Valid, 1208 SdHoareTripleChecker+Invalid, 542 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:38,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [287 Valid, 1208 Invalid, 542 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 02:08:38,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1232 states. [2024-11-20 02:08:38,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1232 to 985. [2024-11-20 02:08:38,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 984 states have (on average 1.318089430894309) internal successors, (1297), 984 states have internal predecessors, (1297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:38,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1297 transitions. [2024-11-20 02:08:38,440 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1297 transitions. Word has length 62 [2024-11-20 02:08:38,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:38,440 INFO L471 AbstractCegarLoop]: Abstraction has 985 states and 1297 transitions. [2024-11-20 02:08:38,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.875) internal successors, (62), 16 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:38,440 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1297 transitions. [2024-11-20 02:08:38,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-20 02:08:38,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:38,441 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-20 02:08:38,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2024-11-20 02:08:38,441 INFO L396 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:38,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:38,442 INFO L85 PathProgramCache]: Analyzing trace with hash -2113341064, now seen corresponding path program 1 times [2024-11-20 02:08:38,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:38,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603276030] [2024-11-20 02:08:38,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:38,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:38,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:40,295 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:40,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:40,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603276030] [2024-11-20 02:08:40,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603276030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:40,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:40,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 02:08:40,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290745326] [2024-11-20 02:08:40,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:40,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 02:08:40,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:40,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 02:08:40,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:08:40,297 INFO L87 Difference]: Start difference. First operand 985 states and 1297 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:42,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:42,432 INFO L93 Difference]: Finished difference Result 1654 states and 2204 transitions. [2024-11-20 02:08:42,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 02:08:42,433 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 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 62 [2024-11-20 02:08:42,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:42,434 INFO L225 Difference]: With dead ends: 1654 [2024-11-20 02:08:42,434 INFO L226 Difference]: Without dead ends: 967 [2024-11-20 02:08:42,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:08:42,435 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 121 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:42,435 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 367 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-20 02:08:42,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2024-11-20 02:08:42,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 957. [2024-11-20 02:08:42,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 956 states have (on average 1.3096234309623431) internal successors, (1252), 956 states have internal predecessors, (1252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:42,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1252 transitions. [2024-11-20 02:08:42,441 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1252 transitions. Word has length 62 [2024-11-20 02:08:42,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:42,441 INFO L471 AbstractCegarLoop]: Abstraction has 957 states and 1252 transitions. [2024-11-20 02:08:42,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:42,441 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1252 transitions. [2024-11-20 02:08:42,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-20 02:08:42,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:42,441 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:08:42,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2024-11-20 02:08:42,442 INFO L396 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:42,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:42,442 INFO L85 PathProgramCache]: Analyzing trace with hash 1350034757, now seen corresponding path program 1 times [2024-11-20 02:08:42,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:42,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904572171] [2024-11-20 02:08:42,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:42,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:42,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:42,729 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:42,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:42,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904572171] [2024-11-20 02:08:42,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904572171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:42,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:42,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-20 02:08:42,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551698854] [2024-11-20 02:08:42,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:42,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 02:08:42,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:42,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 02:08:42,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-20 02:08:42,730 INFO L87 Difference]: Start difference. First operand 957 states and 1252 transitions. Second operand has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:42,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:42,872 INFO L93 Difference]: Finished difference Result 1580 states and 2097 transitions. [2024-11-20 02:08:42,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 02:08:42,872 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-20 02:08:42,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:42,873 INFO L225 Difference]: With dead ends: 1580 [2024-11-20 02:08:42,873 INFO L226 Difference]: Without dead ends: 1027 [2024-11-20 02:08:42,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-20 02:08:42,874 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 167 mSDsluCounter, 569 mSDsCounter, 0 mSdLazyCounter, 321 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 707 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 321 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:42,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 707 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 321 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:42,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-11-20 02:08:42,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 956. [2024-11-20 02:08:42,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 956 states, 955 states have (on average 1.3099476439790576) internal successors, (1251), 955 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:42,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 1251 transitions. [2024-11-20 02:08:42,880 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 1251 transitions. Word has length 63 [2024-11-20 02:08:42,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:42,880 INFO L471 AbstractCegarLoop]: Abstraction has 956 states and 1251 transitions. [2024-11-20 02:08:42,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.0) internal successors, (63), 9 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:42,880 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 1251 transitions. [2024-11-20 02:08:42,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-20 02:08:42,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:42,881 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:08:42,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2024-11-20 02:08:42,881 INFO L396 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:42,881 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:42,882 INFO L85 PathProgramCache]: Analyzing trace with hash -279517964, now seen corresponding path program 1 times [2024-11-20 02:08:42,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:42,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319051333] [2024-11-20 02:08:42,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:42,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:43,565 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:43,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:43,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319051333] [2024-11-20 02:08:43,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319051333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:43,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:43,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-20 02:08:43,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1480768199] [2024-11-20 02:08:43,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:43,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-20 02:08:43,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:43,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-20 02:08:43,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-11-20 02:08:43,567 INFO L87 Difference]: Start difference. First operand 956 states and 1251 transitions. Second operand has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:44,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:44,038 INFO L93 Difference]: Finished difference Result 2002 states and 2670 transitions. [2024-11-20 02:08:44,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-20 02:08:44,039 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-20 02:08:44,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:44,040 INFO L225 Difference]: With dead ends: 2002 [2024-11-20 02:08:44,040 INFO L226 Difference]: Without dead ends: 1450 [2024-11-20 02:08:44,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=91, Invalid=461, Unknown=0, NotChecked=0, Total=552 [2024-11-20 02:08:44,041 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 361 mSDsluCounter, 1749 mSDsCounter, 0 mSdLazyCounter, 890 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 361 SdHoareTripleChecker+Valid, 1925 SdHoareTripleChecker+Invalid, 896 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:44,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [361 Valid, 1925 Invalid, 896 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 890 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 02:08:44,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1450 states. [2024-11-20 02:08:44,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1450 to 1107. [2024-11-20 02:08:44,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 1106 states have (on average 1.3191681735985534) internal successors, (1459), 1106 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:44,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1459 transitions. [2024-11-20 02:08:44,049 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1459 transitions. Word has length 63 [2024-11-20 02:08:44,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:44,049 INFO L471 AbstractCegarLoop]: Abstraction has 1107 states and 1459 transitions. [2024-11-20 02:08:44,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.5) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:44,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1459 transitions. [2024-11-20 02:08:44,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-20 02:08:44,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:44,050 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:08:44,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2024-11-20 02:08:44,050 INFO L396 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:44,050 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:44,050 INFO L85 PathProgramCache]: Analyzing trace with hash 98983173, now seen corresponding path program 1 times [2024-11-20 02:08:44,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:44,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26945382] [2024-11-20 02:08:44,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:44,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:44,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:44,271 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:44,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:44,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26945382] [2024-11-20 02:08:44,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26945382] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 02:08:44,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681793281] [2024-11-20 02:08:44,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:44,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:08:44,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 02:08:44,273 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 02:08:44,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-20 02:08:44,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:44,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-20 02:08:44,587 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 02:08:44,767 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:44,767 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 02:08:45,042 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:45,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681793281] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 02:08:45,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 02:08:45,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 15 [2024-11-20 02:08:45,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857750919] [2024-11-20 02:08:45,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 02:08:45,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 02:08:45,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:45,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 02:08:45,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2024-11-20 02:08:45,043 INFO L87 Difference]: Start difference. First operand 1107 states and 1459 transitions. Second operand has 15 states, 15 states have (on average 11.6) internal successors, (174), 15 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) [2024-11-20 02:08:45,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 02:08:45,161 INFO L93 Difference]: Finished difference Result 1779 states and 2405 transitions. [2024-11-20 02:08:45,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 02:08:45,161 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 11.6) internal successors, (174), 15 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 63 [2024-11-20 02:08:45,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 02:08:45,162 INFO L225 Difference]: With dead ends: 1779 [2024-11-20 02:08:45,162 INFO L226 Difference]: Without dead ends: 1110 [2024-11-20 02:08:45,163 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=302, Unknown=0, NotChecked=0, Total=380 [2024-11-20 02:08:45,163 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 76 mSDsluCounter, 749 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 859 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 02:08:45,163 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 859 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 02:08:45,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1110 states. [2024-11-20 02:08:45,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1110 to 1107. [2024-11-20 02:08:45,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1107 states, 1106 states have (on average 1.3191681735985534) internal successors, (1459), 1106 states have internal predecessors, (1459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-20 02:08:45,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1107 states to 1107 states and 1459 transitions. [2024-11-20 02:08:45,170 INFO L78 Accepts]: Start accepts. Automaton has 1107 states and 1459 transitions. Word has length 63 [2024-11-20 02:08:45,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 02:08:45,170 INFO L471 AbstractCegarLoop]: Abstraction has 1107 states and 1459 transitions. [2024-11-20 02:08:45,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 11.6) internal successors, (174), 15 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) [2024-11-20 02:08:45,170 INFO L276 IsEmpty]: Start isEmpty. Operand 1107 states and 1459 transitions. [2024-11-20 02:08:45,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-20 02:08:45,171 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 02:08:45,171 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 02:08:45,180 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-20 02:08:45,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 02:08:45,372 INFO L396 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 02:08:45,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 02:08:45,372 INFO L85 PathProgramCache]: Analyzing trace with hash 491446171, now seen corresponding path program 1 times [2024-11-20 02:08:45,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 02:08:45,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65757019] [2024-11-20 02:08:45,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 02:08:45,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 02:08:45,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 02:08:46,034 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 02:08:46,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 02:08:46,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65757019] [2024-11-20 02:08:46,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65757019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 02:08:46,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 02:08:46,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-20 02:08:46,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857217404] [2024-11-20 02:08:46,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 02:08:46,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 02:08:46,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 02:08:46,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 02:08:46,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 02:08:46,035 INFO L87 Difference]: Start difference. First operand 1107 states and 1459 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)