./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem17_label18.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem17_label18.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 36682755a8fd6d5761d4aa48745e539f37b082d91c2b7f5a4981e2bf074e7e62 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 11:38:41,432 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 11:38:41,497 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 11:38:41,502 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 11:38:41,502 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 11:38:41,522 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 11:38:41,522 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 11:38:41,523 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 11:38:41,524 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 11:38:41,524 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 11:38:41,525 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 11:38:41,525 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 11:38:41,526 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 11:38:41,526 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 11:38:41,527 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 11:38:41,527 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 11:38:41,528 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 11:38:41,528 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 11:38:41,528 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 11:38:41,530 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 11:38:41,530 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 11:38:41,530 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 11:38:41,531 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 11:38:41,531 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 11:38:41,531 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 11:38:41,531 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 11:38:41,531 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 11:38:41,531 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 11:38:41,532 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 11:38:41,532 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 11:38:41,532 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 11:38:41,532 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 11:38:41,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:38:41,532 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 11:38:41,532 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 11:38:41,533 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 11:38:41,533 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 11:38:41,533 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 11:38:41,533 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 11:38:41,533 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 11:38:41,533 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 11:38:41,534 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 11:38:41,534 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 36682755a8fd6d5761d4aa48745e539f37b082d91c2b7f5a4981e2bf074e7e62 [2024-11-08 11:38:41,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 11:38:41,729 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 11:38:41,731 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 11:38:41,732 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 11:38:41,732 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 11:38:41,733 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem17_label18.c [2024-11-08 11:38:42,916 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 11:38:43,233 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 11:38:43,234 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem17_label18.c [2024-11-08 11:38:43,253 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa5039d21/61e7601b591e4a27aa1ebc88ecf7777f/FLAG021793f0d [2024-11-08 11:38:43,266 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa5039d21/61e7601b591e4a27aa1ebc88ecf7777f [2024-11-08 11:38:43,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 11:38:43,270 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 11:38:43,272 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 11:38:43,272 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 11:38:43,275 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 11:38:43,276 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:38:43" (1/1) ... [2024-11-08 11:38:43,277 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@524ce280 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:43, skipping insertion in model container [2024-11-08 11:38:43,278 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:38:43" (1/1) ... [2024-11-08 11:38:43,341 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 11:38:43,535 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/eca-rers2012/Problem17_label18.c[8129,8142] [2024-11-08 11:38:43,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:38:43,939 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 11:38:43,960 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/eca-rers2012/Problem17_label18.c[8129,8142] [2024-11-08 11:38:44,159 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 11:38:44,175 INFO L204 MainTranslator]: Completed translation [2024-11-08 11:38:44,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:44 WrapperNode [2024-11-08 11:38:44,176 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 11:38:44,176 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 11:38:44,177 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 11:38:44,177 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 11:38:44,182 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:44" (1/1) ... [2024-11-08 11:38:44,217 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:44" (1/1) ... [2024-11-08 11:38:44,402 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2613 [2024-11-08 11:38:44,403 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 11:38:44,403 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 11:38:44,403 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 11:38:44,404 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 11:38:44,412 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:44" (1/1) ... [2024-11-08 11:38:44,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:44" (1/1) ... [2024-11-08 11:38:44,438 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:44" (1/1) ... [2024-11-08 11:38:44,562 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]. [2024-11-08 11:38:44,563 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:44" (1/1) ... [2024-11-08 11:38:44,563 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:44" (1/1) ... [2024-11-08 11:38:44,691 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:44" (1/1) ... [2024-11-08 11:38:44,707 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:44" (1/1) ... [2024-11-08 11:38:44,720 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:44" (1/1) ... [2024-11-08 11:38:44,731 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:44" (1/1) ... [2024-11-08 11:38:44,754 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 11:38:44,756 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 11:38:44,756 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 11:38:44,757 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 11:38:44,757 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:44" (1/1) ... [2024-11-08 11:38:44,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 11:38:44,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:38:44,783 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) [2024-11-08 11:38:44,785 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 [2024-11-08 11:38:44,818 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 11:38:44,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 11:38:44,818 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 11:38:44,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 11:38:44,868 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 11:38:44,870 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 11:38:47,147 INFO L? ?]: Removed 372 outVars from TransFormulas that were not future-live. [2024-11-08 11:38:47,148 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 11:38:47,176 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 11:38:47,176 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 11:38:47,176 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:38:47 BoogieIcfgContainer [2024-11-08 11:38:47,176 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 11:38:47,181 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 11:38:47,182 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 11:38:47,184 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 11:38:47,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:38:43" (1/3) ... [2024-11-08 11:38:47,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d123920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:38:47, skipping insertion in model container [2024-11-08 11:38:47,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:38:44" (2/3) ... [2024-11-08 11:38:47,185 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d123920 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:38:47, skipping insertion in model container [2024-11-08 11:38:47,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:38:47" (3/3) ... [2024-11-08 11:38:47,186 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label18.c [2024-11-08 11:38:47,197 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 11:38:47,197 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 11:38:47,256 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 11:38:47,263 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;@78019879, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 11:38:47,263 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 11:38:47,270 INFO L276 IsEmpty]: Start isEmpty. Operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:38:47,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-08 11:38:47,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:38:47,279 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:38:47,279 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:38:47,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:38:47,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1246856209, now seen corresponding path program 1 times [2024-11-08 11:38:47,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:38:47,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446362123] [2024-11-08 11:38:47,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:38:47,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:38:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:38:47,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:38:47,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:38:47,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446362123] [2024-11-08 11:38:47,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446362123] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:38:47,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:38:47,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:38:47,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880113391] [2024-11-08 11:38:47,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:38:47,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:38:47,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:38:47,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:38:47,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:38:47,626 INFO L87 Difference]: Start difference. First operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 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) [2024-11-08 11:38:49,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:38:49,647 INFO L93 Difference]: Finished difference Result 1667 states and 3061 transitions. [2024-11-08 11:38:49,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:38:49,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 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 [2024-11-08 11:38:49,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:38:49,664 INFO L225 Difference]: With dead ends: 1667 [2024-11-08 11:38:49,664 INFO L226 Difference]: Without dead ends: 998 [2024-11-08 11:38:49,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:38:49,676 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 490 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 396 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 1962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 396 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 11:38:49,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 276 Invalid, 1962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [396 Valid, 1566 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 11:38:49,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 998 states. [2024-11-08 11:38:49,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 998 to 982. [2024-11-08 11:38:49,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 981 states have (on average 1.707441386340469) internal successors, (1675), 981 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:38:49,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1675 transitions. [2024-11-08 11:38:49,742 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1675 transitions. Word has length 55 [2024-11-08 11:38:49,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:38:49,742 INFO L471 AbstractCegarLoop]: Abstraction has 982 states and 1675 transitions. [2024-11-08 11:38:49,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 2 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) [2024-11-08 11:38:49,743 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1675 transitions. [2024-11-08 11:38:49,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-08 11:38:49,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:38:49,745 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:38:49,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 11:38:49,746 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:38:49,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:38:49,746 INFO L85 PathProgramCache]: Analyzing trace with hash -368294123, now seen corresponding path program 1 times [2024-11-08 11:38:49,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:38:49,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458913890] [2024-11-08 11:38:49,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:38:49,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:38:49,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:38:49,913 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:38:49,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:38:49,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458913890] [2024-11-08 11:38:49,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458913890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:38:49,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:38:49,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:38:49,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168984407] [2024-11-08 11:38:49,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:38:49,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:38:49,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:38:49,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:38:49,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:38:49,916 INFO L87 Difference]: Start difference. First operand 982 states and 1675 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:38:51,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:38:51,565 INFO L93 Difference]: Finished difference Result 2841 states and 4881 transitions. [2024-11-08 11:38:51,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:38:51,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2024-11-08 11:38:51,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:38:51,572 INFO L225 Difference]: With dead ends: 2841 [2024-11-08 11:38:51,573 INFO L226 Difference]: Without dead ends: 1861 [2024-11-08 11:38:51,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:38:51,576 INFO L432 NwaCegarLoop]: 423 mSDtfsCounter, 407 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1340 mSolverCounterSat, 325 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 407 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 1665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 325 IncrementalHoareTripleChecker+Valid, 1340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:38:51,577 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [407 Valid, 496 Invalid, 1665 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [325 Valid, 1340 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 11:38:51,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1861 states. [2024-11-08 11:38:51,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1861 to 1857. [2024-11-08 11:38:51,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1857 states, 1856 states have (on average 1.4547413793103448) internal successors, (2700), 1856 states have internal predecessors, (2700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:38:51,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1857 states to 1857 states and 2700 transitions. [2024-11-08 11:38:51,613 INFO L78 Accepts]: Start accepts. Automaton has 1857 states and 2700 transitions. Word has length 120 [2024-11-08 11:38:51,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:38:51,614 INFO L471 AbstractCegarLoop]: Abstraction has 1857 states and 2700 transitions. [2024-11-08 11:38:51,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:38:51,615 INFO L276 IsEmpty]: Start isEmpty. Operand 1857 states and 2700 transitions. [2024-11-08 11:38:51,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-08 11:38:51,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:38:51,620 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:38:51,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 11:38:51,620 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:38:51,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:38:51,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1886359936, now seen corresponding path program 1 times [2024-11-08 11:38:51,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:38:51,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748421025] [2024-11-08 11:38:51,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:38:51,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:38:51,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:38:51,923 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:38:51,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:38:51,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748421025] [2024-11-08 11:38:51,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748421025] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:38:51,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:38:51,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:38:51,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572193096] [2024-11-08 11:38:51,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:38:51,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:38:51,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:38:51,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:38:51,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:38:51,925 INFO L87 Difference]: Start difference. First operand 1857 states and 2700 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:38:53,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:38:53,674 INFO L93 Difference]: Finished difference Result 4591 states and 6640 transitions. [2024-11-08 11:38:53,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:38:53,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 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 160 [2024-11-08 11:38:53,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:38:53,682 INFO L225 Difference]: With dead ends: 4591 [2024-11-08 11:38:53,682 INFO L226 Difference]: Without dead ends: 2736 [2024-11-08 11:38:53,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:38:53,687 INFO L432 NwaCegarLoop]: 475 mSDtfsCounter, 352 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1665 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 537 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 1665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 11:38:53,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 537 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 1665 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 11:38:53,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2736 states. [2024-11-08 11:38:53,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2736 to 2716. [2024-11-08 11:38:53,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2716 states, 2715 states have (on average 1.390791896869245) internal successors, (3776), 2715 states have internal predecessors, (3776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:38:53,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2716 states to 2716 states and 3776 transitions. [2024-11-08 11:38:53,731 INFO L78 Accepts]: Start accepts. Automaton has 2716 states and 3776 transitions. Word has length 160 [2024-11-08 11:38:53,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:38:53,732 INFO L471 AbstractCegarLoop]: Abstraction has 2716 states and 3776 transitions. [2024-11-08 11:38:53,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:38:53,733 INFO L276 IsEmpty]: Start isEmpty. Operand 2716 states and 3776 transitions. [2024-11-08 11:38:53,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-11-08 11:38:53,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:38:53,738 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:38:53,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 11:38:53,738 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:38:53,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:38:53,739 INFO L85 PathProgramCache]: Analyzing trace with hash 919734479, now seen corresponding path program 1 times [2024-11-08 11:38:53,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:38:53,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229450173] [2024-11-08 11:38:53,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:38:53,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:38:53,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:38:53,867 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:38:53,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:38:53,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229450173] [2024-11-08 11:38:53,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229450173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:38:53,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:38:53,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:38:53,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349204993] [2024-11-08 11:38:53,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:38:53,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:38:53,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:38:53,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:38:53,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:38:53,869 INFO L87 Difference]: Start difference. First operand 2716 states and 3776 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:38:55,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:38:55,339 INFO L93 Difference]: Finished difference Result 6709 states and 9429 transitions. [2024-11-08 11:38:55,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:38:55,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 0 states have call successors, (0), 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 166 [2024-11-08 11:38:55,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:38:55,348 INFO L225 Difference]: With dead ends: 6709 [2024-11-08 11:38:55,348 INFO L226 Difference]: Without dead ends: 3995 [2024-11-08 11:38:55,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:38:55,350 INFO L432 NwaCegarLoop]: 516 mSDtfsCounter, 347 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 11:38:55,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 591 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 11:38:55,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3995 states. [2024-11-08 11:38:55,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3995 to 3142. [2024-11-08 11:38:55,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3142 states, 3141 states have (on average 1.274434893346068) internal successors, (4003), 3141 states have internal predecessors, (4003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:38:55,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3142 states to 3142 states and 4003 transitions. [2024-11-08 11:38:55,382 INFO L78 Accepts]: Start accepts. Automaton has 3142 states and 4003 transitions. Word has length 166 [2024-11-08 11:38:55,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:38:55,383 INFO L471 AbstractCegarLoop]: Abstraction has 3142 states and 4003 transitions. [2024-11-08 11:38:55,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 2 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:38:55,383 INFO L276 IsEmpty]: Start isEmpty. Operand 3142 states and 4003 transitions. [2024-11-08 11:38:55,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2024-11-08 11:38:55,384 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:38:55,385 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:38:55,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 11:38:55,385 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:38:55,385 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:38:55,385 INFO L85 PathProgramCache]: Analyzing trace with hash -983063388, now seen corresponding path program 1 times [2024-11-08 11:38:55,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:38:55,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848840041] [2024-11-08 11:38:55,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:38:55,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:38:55,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:38:55,671 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:38:55,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:38:55,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848840041] [2024-11-08 11:38:55,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848840041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:38:55,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:38:55,673 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 11:38:55,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790107864] [2024-11-08 11:38:55,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:38:55,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 11:38:55,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:38:55,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 11:38:55,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 11:38:55,674 INFO L87 Difference]: Start difference. First operand 3142 states and 4003 transitions. Second operand has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:38:57,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:38:57,540 INFO L93 Difference]: Finished difference Result 8005 states and 10508 transitions. [2024-11-08 11:38:57,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:38:57,540 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 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 203 [2024-11-08 11:38:57,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:38:57,551 INFO L225 Difference]: With dead ends: 8005 [2024-11-08 11:38:57,551 INFO L226 Difference]: Without dead ends: 4865 [2024-11-08 11:38:57,553 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 11:38:57,555 INFO L432 NwaCegarLoop]: 765 mSDtfsCounter, 1089 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 1986 mSolverCounterSat, 789 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 2775 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 789 IncrementalHoareTripleChecker+Valid, 1986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 11:38:57,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1089 Valid, 894 Invalid, 2775 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [789 Valid, 1986 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 11:38:57,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4865 states. [2024-11-08 11:38:57,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4865 to 4852. [2024-11-08 11:38:57,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4852 states, 4851 states have (on average 1.2665429808286952) internal successors, (6144), 4851 states have internal predecessors, (6144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:38:57,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4852 states to 4852 states and 6144 transitions. [2024-11-08 11:38:57,603 INFO L78 Accepts]: Start accepts. Automaton has 4852 states and 6144 transitions. Word has length 203 [2024-11-08 11:38:57,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:38:57,604 INFO L471 AbstractCegarLoop]: Abstraction has 4852 states and 6144 transitions. [2024-11-08 11:38:57,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 40.6) internal successors, (203), 5 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:38:57,605 INFO L276 IsEmpty]: Start isEmpty. Operand 4852 states and 6144 transitions. [2024-11-08 11:38:57,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-11-08 11:38:57,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:38:57,606 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:38:57,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 11:38:57,606 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:38:57,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:38:57,607 INFO L85 PathProgramCache]: Analyzing trace with hash 120323603, now seen corresponding path program 1 times [2024-11-08 11:38:57,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:38:57,607 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307351795] [2024-11-08 11:38:57,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:38:57,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:38:57,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:38:57,723 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-08 11:38:57,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:38:57,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307351795] [2024-11-08 11:38:57,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307351795] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:38:57,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:38:57,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:38:57,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262867338] [2024-11-08 11:38:57,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:38:57,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:38:57,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:38:57,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:38:57,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:38:57,727 INFO L87 Difference]: Start difference. First operand 4852 states and 6144 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:38:59,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:38:59,185 INFO L93 Difference]: Finished difference Result 12249 states and 15825 transitions. [2024-11-08 11:38:59,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:38:59,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 209 [2024-11-08 11:38:59,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:38:59,206 INFO L225 Difference]: With dead ends: 12249 [2024-11-08 11:38:59,206 INFO L226 Difference]: Without dead ends: 7399 [2024-11-08 11:38:59,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:38:59,212 INFO L432 NwaCegarLoop]: 481 mSDtfsCounter, 393 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 1339 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 1695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 1339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 11:38:59,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 545 Invalid, 1695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 1339 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 11:38:59,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7399 states. [2024-11-08 11:38:59,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7399 to 4826. [2024-11-08 11:38:59,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4826 states, 4825 states have (on average 1.2652849740932643) internal successors, (6105), 4825 states have internal predecessors, (6105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:38:59,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4826 states to 4826 states and 6105 transitions. [2024-11-08 11:38:59,297 INFO L78 Accepts]: Start accepts. Automaton has 4826 states and 6105 transitions. Word has length 209 [2024-11-08 11:38:59,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:38:59,298 INFO L471 AbstractCegarLoop]: Abstraction has 4826 states and 6105 transitions. [2024-11-08 11:38:59,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:38:59,298 INFO L276 IsEmpty]: Start isEmpty. Operand 4826 states and 6105 transitions. [2024-11-08 11:38:59,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-08 11:38:59,300 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:38:59,300 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:38:59,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 11:38:59,300 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:38:59,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:38:59,302 INFO L85 PathProgramCache]: Analyzing trace with hash -749939841, now seen corresponding path program 1 times [2024-11-08 11:38:59,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:38:59,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108527022] [2024-11-08 11:38:59,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:38:59,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:38:59,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:38:59,545 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 75 proven. 30 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-08 11:38:59,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:38:59,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108527022] [2024-11-08 11:38:59,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108527022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:38:59,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842291160] [2024-11-08 11:38:59,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:38:59,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:38:59,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:38:59,549 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) [2024-11-08 11:38:59,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 11:38:59,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:38:59,635 INFO L255 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 11:38:59,640 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:38:59,721 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-08 11:38:59,721 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 11:38:59,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842291160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:38:59,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 11:38:59,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-08 11:38:59,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548791326] [2024-11-08 11:38:59,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:38:59,722 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:38:59,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:38:59,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:38:59,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:38:59,723 INFO L87 Difference]: Start difference. First operand 4826 states and 6105 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:01,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:01,261 INFO L93 Difference]: Finished difference Result 12204 states and 15757 transitions. [2024-11-08 11:39:01,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:01,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 222 [2024-11-08 11:39:01,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:01,280 INFO L225 Difference]: With dead ends: 12204 [2024-11-08 11:39:01,280 INFO L226 Difference]: Without dead ends: 7380 [2024-11-08 11:39:01,284 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:39:01,285 INFO L432 NwaCegarLoop]: 459 mSDtfsCounter, 417 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1398 mSolverCounterSat, 360 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 417 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 1758 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 360 IncrementalHoareTripleChecker+Valid, 1398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:01,285 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [417 Valid, 511 Invalid, 1758 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [360 Valid, 1398 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 11:39:01,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7380 states. [2024-11-08 11:39:01,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7380 to 6525. [2024-11-08 11:39:01,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6525 states, 6524 states have (on average 1.2665542611894542) internal successors, (8263), 6524 states have internal predecessors, (8263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:01,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6525 states to 6525 states and 8263 transitions. [2024-11-08 11:39:01,374 INFO L78 Accepts]: Start accepts. Automaton has 6525 states and 8263 transitions. Word has length 222 [2024-11-08 11:39:01,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:01,374 INFO L471 AbstractCegarLoop]: Abstraction has 6525 states and 8263 transitions. [2024-11-08 11:39:01,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:01,375 INFO L276 IsEmpty]: Start isEmpty. Operand 6525 states and 8263 transitions. [2024-11-08 11:39:01,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-08 11:39:01,378 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:01,378 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:01,392 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 11:39:01,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:39:01,579 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:01,580 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:01,580 INFO L85 PathProgramCache]: Analyzing trace with hash -186884925, now seen corresponding path program 1 times [2024-11-08 11:39:01,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:01,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194822923] [2024-11-08 11:39:01,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:01,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:01,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:01,791 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:39:01,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:01,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194822923] [2024-11-08 11:39:01,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194822923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:01,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:01,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:39:01,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904374270] [2024-11-08 11:39:01,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:01,793 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:01,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:01,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:01,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:01,794 INFO L87 Difference]: Start difference. First operand 6525 states and 8263 transitions. Second operand has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:03,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:03,462 INFO L93 Difference]: Finished difference Result 18180 states and 22851 transitions. [2024-11-08 11:39:03,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:03,462 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 271 [2024-11-08 11:39:03,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:03,476 INFO L225 Difference]: With dead ends: 18180 [2024-11-08 11:39:03,476 INFO L226 Difference]: Without dead ends: 10805 [2024-11-08 11:39:03,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:03,480 INFO L432 NwaCegarLoop]: 877 mSDtfsCounter, 371 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1354 mSolverCounterSat, 349 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 371 SdHoareTripleChecker+Valid, 950 SdHoareTripleChecker+Invalid, 1703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 349 IncrementalHoareTripleChecker+Valid, 1354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:03,480 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [371 Valid, 950 Invalid, 1703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [349 Valid, 1354 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 11:39:03,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10805 states. [2024-11-08 11:39:03,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10805 to 10797. [2024-11-08 11:39:03,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10797 states, 10796 states have (on average 1.1779362726935902) internal successors, (12717), 10796 states have internal predecessors, (12717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:03,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10797 states to 10797 states and 12717 transitions. [2024-11-08 11:39:03,572 INFO L78 Accepts]: Start accepts. Automaton has 10797 states and 12717 transitions. Word has length 271 [2024-11-08 11:39:03,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:03,573 INFO L471 AbstractCegarLoop]: Abstraction has 10797 states and 12717 transitions. [2024-11-08 11:39:03,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.33333333333333) internal successors, (271), 3 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:03,573 INFO L276 IsEmpty]: Start isEmpty. Operand 10797 states and 12717 transitions. [2024-11-08 11:39:03,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 276 [2024-11-08 11:39:03,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:03,576 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:03,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 11:39:03,576 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:03,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:03,576 INFO L85 PathProgramCache]: Analyzing trace with hash -1538620787, now seen corresponding path program 1 times [2024-11-08 11:39:03,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:03,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608600861] [2024-11-08 11:39:03,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:03,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:03,823 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 105 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:39:03,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:03,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608600861] [2024-11-08 11:39:03,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608600861] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:39:03,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189018805] [2024-11-08 11:39:03,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:03,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:39:03,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:39:03,827 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) [2024-11-08 11:39:03,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 11:39:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:03,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 11:39:03,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:39:04,178 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 105 proven. 82 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:39:04,178 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 11:39:04,445 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 187 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 11:39:04,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189018805] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 11:39:04,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 11:39:04,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 7 [2024-11-08 11:39:04,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516932296] [2024-11-08 11:39:04,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:04,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:39:04,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:04,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:39:04,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 11:39:04,447 INFO L87 Difference]: Start difference. First operand 10797 states and 12717 transitions. Second operand has 4 states, 4 states have (on average 68.75) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:06,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:06,826 INFO L93 Difference]: Finished difference Result 33972 states and 40195 transitions. [2024-11-08 11:39:06,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:39:06,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 68.75) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 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 275 [2024-11-08 11:39:06,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:06,855 INFO L225 Difference]: With dead ends: 33972 [2024-11-08 11:39:06,856 INFO L226 Difference]: Without dead ends: 22312 [2024-11-08 11:39:06,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 551 GetRequests, 545 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-08 11:39:06,868 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 1018 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 2233 mSolverCounterSat, 1196 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1018 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 3429 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1196 IncrementalHoareTripleChecker+Valid, 2233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:06,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1018 Valid, 144 Invalid, 3429 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1196 Valid, 2233 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-08 11:39:06,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22312 states. [2024-11-08 11:39:07,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22312 to 21035. [2024-11-08 11:39:07,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21035 states, 21034 states have (on average 1.1547494532661404) internal successors, (24289), 21034 states have internal predecessors, (24289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:07,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21035 states to 21035 states and 24289 transitions. [2024-11-08 11:39:07,053 INFO L78 Accepts]: Start accepts. Automaton has 21035 states and 24289 transitions. Word has length 275 [2024-11-08 11:39:07,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:07,054 INFO L471 AbstractCegarLoop]: Abstraction has 21035 states and 24289 transitions. [2024-11-08 11:39:07,054 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 68.75) internal successors, (275), 3 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:07,054 INFO L276 IsEmpty]: Start isEmpty. Operand 21035 states and 24289 transitions. [2024-11-08 11:39:07,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-11-08 11:39:07,057 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:07,058 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:07,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 11:39:07,262 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,SelfDestructingSolverStorable8 [2024-11-08 11:39:07,263 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:07,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:07,263 INFO L85 PathProgramCache]: Analyzing trace with hash 787472338, now seen corresponding path program 1 times [2024-11-08 11:39:07,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:07,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165465874] [2024-11-08 11:39:07,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:07,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:07,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:07,423 INFO L134 CoverageAnalysis]: Checked inductivity of 382 backedges. 301 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2024-11-08 11:39:07,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:07,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165465874] [2024-11-08 11:39:07,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165465874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:07,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:07,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:39:07,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183234890] [2024-11-08 11:39:07,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:07,425 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:07,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:07,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:07,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:07,425 INFO L87 Difference]: Start difference. First operand 21035 states and 24289 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:08,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:08,589 INFO L93 Difference]: Finished difference Result 45470 states and 52617 transitions. [2024-11-08 11:39:08,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:08,590 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 292 [2024-11-08 11:39:08,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:08,615 INFO L225 Difference]: With dead ends: 45470 [2024-11-08 11:39:08,615 INFO L226 Difference]: Without dead ends: 24011 [2024-11-08 11:39:08,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:08,632 INFO L432 NwaCegarLoop]: 767 mSDtfsCounter, 385 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 1184 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 834 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 1184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:08,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 834 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 1184 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 11:39:08,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24011 states. [2024-11-08 11:39:08,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24011 to 24011. [2024-11-08 11:39:08,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24011 states, 24010 states have (on average 1.1354435651811745) internal successors, (27262), 24010 states have internal predecessors, (27262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:08,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24011 states to 24011 states and 27262 transitions. [2024-11-08 11:39:08,819 INFO L78 Accepts]: Start accepts. Automaton has 24011 states and 27262 transitions. Word has length 292 [2024-11-08 11:39:08,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:08,819 INFO L471 AbstractCegarLoop]: Abstraction has 24011 states and 27262 transitions. [2024-11-08 11:39:08,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:08,819 INFO L276 IsEmpty]: Start isEmpty. Operand 24011 states and 27262 transitions. [2024-11-08 11:39:08,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 350 [2024-11-08 11:39:08,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:08,828 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:08,828 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 11:39:08,829 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:08,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:08,829 INFO L85 PathProgramCache]: Analyzing trace with hash 2144464816, now seen corresponding path program 1 times [2024-11-08 11:39:08,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:08,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951756570] [2024-11-08 11:39:08,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:08,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:08,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:09,174 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 314 proven. 0 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-08 11:39:09,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:09,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951756570] [2024-11-08 11:39:09,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951756570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:09,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:09,175 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:39:09,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081065119] [2024-11-08 11:39:09,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:09,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:09,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:09,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:09,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:09,176 INFO L87 Difference]: Start difference. First operand 24011 states and 27262 transitions. Second operand has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:10,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:10,540 INFO L93 Difference]: Finished difference Result 57402 states and 65479 transitions. [2024-11-08 11:39:10,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:10,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 349 [2024-11-08 11:39:10,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:10,570 INFO L225 Difference]: With dead ends: 57402 [2024-11-08 11:39:10,570 INFO L226 Difference]: Without dead ends: 33393 [2024-11-08 11:39:10,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:10,588 INFO L432 NwaCegarLoop]: 796 mSDtfsCounter, 323 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 1544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:10,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 854 Invalid, 1544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 11:39:10,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33393 states. [2024-11-08 11:39:10,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33393 to 31671. [2024-11-08 11:39:10,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31671 states, 31670 states have (on average 1.129428481212504) internal successors, (35769), 31670 states have internal predecessors, (35769), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:11,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31671 states to 31671 states and 35769 transitions. [2024-11-08 11:39:11,027 INFO L78 Accepts]: Start accepts. Automaton has 31671 states and 35769 transitions. Word has length 349 [2024-11-08 11:39:11,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:11,028 INFO L471 AbstractCegarLoop]: Abstraction has 31671 states and 35769 transitions. [2024-11-08 11:39:11,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.33333333333333) internal successors, (277), 3 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:11,028 INFO L276 IsEmpty]: Start isEmpty. Operand 31671 states and 35769 transitions. [2024-11-08 11:39:11,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-11-08 11:39:11,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:11,033 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:11,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 11:39:11,034 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:11,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:11,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1805536226, now seen corresponding path program 1 times [2024-11-08 11:39:11,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:11,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892630677] [2024-11-08 11:39:11,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:11,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:11,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:11,373 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 266 proven. 78 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-08 11:39:11,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:11,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892630677] [2024-11-08 11:39:11,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892630677] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:39:11,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636140934] [2024-11-08 11:39:11,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:11,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:39:11,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:39:11,377 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) [2024-11-08 11:39:11,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 11:39:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:11,486 INFO L255 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 11:39:11,491 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:39:11,636 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 266 proven. 78 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-08 11:39:11,636 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 11:39:11,817 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 344 proven. 0 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-08 11:39:11,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636140934] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-08 11:39:11,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-08 11:39:11,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 5 [2024-11-08 11:39:11,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498874094] [2024-11-08 11:39:11,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:11,818 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:39:11,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:11,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:39:11,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:39:11,819 INFO L87 Difference]: Start difference. First operand 31671 states and 35769 transitions. Second operand has 4 states, 4 states have (on average 74.5) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:14,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:14,010 INFO L93 Difference]: Finished difference Result 76141 states and 86284 transitions. [2024-11-08 11:39:14,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:39:14,010 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 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 350 [2024-11-08 11:39:14,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:14,054 INFO L225 Difference]: With dead ends: 76141 [2024-11-08 11:39:14,054 INFO L226 Difference]: Without dead ends: 44045 [2024-11-08 11:39:14,077 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 701 GetRequests, 697 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-08 11:39:14,077 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 886 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 2292 mSolverCounterSat, 567 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 2859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 2292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:14,078 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 189 Invalid, 2859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 2292 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 11:39:14,103 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44045 states. [2024-11-08 11:39:14,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44045 to 42342. [2024-11-08 11:39:14,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42342 states, 42341 states have (on average 1.139155900899837) internal successors, (48233), 42341 states have internal predecessors, (48233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:14,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42342 states to 42342 states and 48233 transitions. [2024-11-08 11:39:14,614 INFO L78 Accepts]: Start accepts. Automaton has 42342 states and 48233 transitions. Word has length 350 [2024-11-08 11:39:14,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:14,615 INFO L471 AbstractCegarLoop]: Abstraction has 42342 states and 48233 transitions. [2024-11-08 11:39:14,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.5) internal successors, (298), 3 states have internal predecessors, (298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:14,615 INFO L276 IsEmpty]: Start isEmpty. Operand 42342 states and 48233 transitions. [2024-11-08 11:39:14,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 368 [2024-11-08 11:39:14,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:14,623 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:14,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 11:39:14,827 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:39:14,828 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:14,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:14,828 INFO L85 PathProgramCache]: Analyzing trace with hash -706456091, now seen corresponding path program 1 times [2024-11-08 11:39:14,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:14,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103960932] [2024-11-08 11:39:14,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:14,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:14,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:15,125 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-08 11:39:15,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:15,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103960932] [2024-11-08 11:39:15,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103960932] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:15,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:15,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:39:15,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892566979] [2024-11-08 11:39:15,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:15,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:15,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:15,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:15,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:15,129 INFO L87 Difference]: Start difference. First operand 42342 states and 48233 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:16,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:16,500 INFO L93 Difference]: Finished difference Result 100001 states and 113526 transitions. [2024-11-08 11:39:16,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:16,501 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 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 367 [2024-11-08 11:39:16,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:16,555 INFO L225 Difference]: With dead ends: 100001 [2024-11-08 11:39:16,555 INFO L226 Difference]: Without dead ends: 57229 [2024-11-08 11:39:16,581 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:16,582 INFO L432 NwaCegarLoop]: 365 mSDtfsCounter, 421 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1294 mSolverCounterSat, 181 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 1475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 181 IncrementalHoareTripleChecker+Valid, 1294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:16,582 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [421 Valid, 423 Invalid, 1475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [181 Valid, 1294 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 11:39:16,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57229 states. [2024-11-08 11:39:17,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57229 to 53820. [2024-11-08 11:39:17,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53820 states, 53819 states have (on average 1.1234694067151005) internal successors, (60464), 53819 states have internal predecessors, (60464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:17,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53820 states to 53820 states and 60464 transitions. [2024-11-08 11:39:17,218 INFO L78 Accepts]: Start accepts. Automaton has 53820 states and 60464 transitions. Word has length 367 [2024-11-08 11:39:17,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:17,218 INFO L471 AbstractCegarLoop]: Abstraction has 53820 states and 60464 transitions. [2024-11-08 11:39:17,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:17,219 INFO L276 IsEmpty]: Start isEmpty. Operand 53820 states and 60464 transitions. [2024-11-08 11:39:17,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2024-11-08 11:39:17,225 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:17,226 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:17,226 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 11:39:17,226 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:17,226 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:17,226 INFO L85 PathProgramCache]: Analyzing trace with hash -773242601, now seen corresponding path program 1 times [2024-11-08 11:39:17,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:17,227 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770807117] [2024-11-08 11:39:17,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:17,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:17,603 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-08 11:39:17,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:17,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770807117] [2024-11-08 11:39:17,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770807117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:17,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:17,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:39:17,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066690709] [2024-11-08 11:39:17,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:17,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:17,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:17,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:17,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:17,606 INFO L87 Difference]: Start difference. First operand 53820 states and 60464 transitions. Second operand has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:18,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:18,937 INFO L93 Difference]: Finished difference Result 118270 states and 132534 transitions. [2024-11-08 11:39:18,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:18,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 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 437 [2024-11-08 11:39:18,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:19,001 INFO L225 Difference]: With dead ends: 118270 [2024-11-08 11:39:19,001 INFO L226 Difference]: Without dead ends: 64026 [2024-11-08 11:39:19,032 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:19,032 INFO L432 NwaCegarLoop]: 296 mSDtfsCounter, 424 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 1200 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 424 SdHoareTripleChecker+Valid, 349 SdHoareTripleChecker+Invalid, 1421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 1200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:19,033 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [424 Valid, 349 Invalid, 1421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 1200 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 11:39:19,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64026 states. [2024-11-08 11:39:19,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64026 to 53813. [2024-11-08 11:39:19,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53813 states, 53812 states have (on average 1.117427339626849) internal successors, (60131), 53812 states have internal predecessors, (60131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:19,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53813 states to 53813 states and 60131 transitions. [2024-11-08 11:39:19,654 INFO L78 Accepts]: Start accepts. Automaton has 53813 states and 60131 transitions. Word has length 437 [2024-11-08 11:39:19,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:19,655 INFO L471 AbstractCegarLoop]: Abstraction has 53813 states and 60131 transitions. [2024-11-08 11:39:19,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.0) internal successors, (252), 3 states have internal predecessors, (252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:19,655 INFO L276 IsEmpty]: Start isEmpty. Operand 53813 states and 60131 transitions. [2024-11-08 11:39:19,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 452 [2024-11-08 11:39:19,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:19,664 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:19,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 11:39:19,665 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:19,665 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:19,665 INFO L85 PathProgramCache]: Analyzing trace with hash -984566140, now seen corresponding path program 1 times [2024-11-08 11:39:19,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:19,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32697261] [2024-11-08 11:39:19,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:19,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:20,084 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2024-11-08 11:39:20,085 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:20,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32697261] [2024-11-08 11:39:20,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32697261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:20,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:20,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:39:20,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995819335] [2024-11-08 11:39:20,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:20,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:20,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:20,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:20,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:20,087 INFO L87 Difference]: Start difference. First operand 53813 states and 60131 transitions. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:21,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:21,551 INFO L93 Difference]: Finished difference Result 121711 states and 135669 transitions. [2024-11-08 11:39:21,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:21,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 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 451 [2024-11-08 11:39:21,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:21,620 INFO L225 Difference]: With dead ends: 121711 [2024-11-08 11:39:21,621 INFO L226 Difference]: Without dead ends: 67474 [2024-11-08 11:39:21,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:21,658 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 437 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 186 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 437 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 1514 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 186 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:21,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [437 Valid, 317 Invalid, 1514 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [186 Valid, 1328 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 11:39:21,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67474 states. [2024-11-08 11:39:22,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67474 to 54236. [2024-11-08 11:39:22,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54236 states, 54235 states have (on average 1.1161980271042684) internal successors, (60537), 54235 states have internal predecessors, (60537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:22,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54236 states to 54236 states and 60537 transitions. [2024-11-08 11:39:22,413 INFO L78 Accepts]: Start accepts. Automaton has 54236 states and 60537 transitions. Word has length 451 [2024-11-08 11:39:22,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:22,414 INFO L471 AbstractCegarLoop]: Abstraction has 54236 states and 60537 transitions. [2024-11-08 11:39:22,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:22,414 INFO L276 IsEmpty]: Start isEmpty. Operand 54236 states and 60537 transitions. [2024-11-08 11:39:22,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 480 [2024-11-08 11:39:22,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:22,424 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:22,424 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 11:39:22,424 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:22,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:22,425 INFO L85 PathProgramCache]: Analyzing trace with hash 2117113694, now seen corresponding path program 1 times [2024-11-08 11:39:22,425 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:22,425 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281250501] [2024-11-08 11:39:22,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:22,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:22,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:22,687 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2024-11-08 11:39:22,688 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:22,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281250501] [2024-11-08 11:39:22,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281250501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:22,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:22,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:39:22,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089689200] [2024-11-08 11:39:22,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:22,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:22,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:22,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:22,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:22,690 INFO L87 Difference]: Start difference. First operand 54236 states and 60537 transitions. Second operand has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:24,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:24,269 INFO L93 Difference]: Finished difference Result 122091 states and 135865 transitions. [2024-11-08 11:39:24,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:24,273 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 479 [2024-11-08 11:39:24,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:24,334 INFO L225 Difference]: With dead ends: 122091 [2024-11-08 11:39:24,334 INFO L226 Difference]: Without dead ends: 67432 [2024-11-08 11:39:24,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:24,366 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 488 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1272 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 488 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 1493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 1272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:24,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [488 Valid, 258 Invalid, 1493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 1272 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 11:39:24,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67432 states. [2024-11-08 11:39:24,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67432 to 53349. [2024-11-08 11:39:24,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53349 states, 53348 states have (on average 1.104914898402939) internal successors, (58945), 53348 states have internal predecessors, (58945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:25,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53349 states to 53349 states and 58945 transitions. [2024-11-08 11:39:25,093 INFO L78 Accepts]: Start accepts. Automaton has 53349 states and 58945 transitions. Word has length 479 [2024-11-08 11:39:25,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:25,093 INFO L471 AbstractCegarLoop]: Abstraction has 53349 states and 58945 transitions. [2024-11-08 11:39:25,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.33333333333333) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:25,094 INFO L276 IsEmpty]: Start isEmpty. Operand 53349 states and 58945 transitions. [2024-11-08 11:39:25,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2024-11-08 11:39:25,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:25,101 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:25,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 11:39:25,102 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:25,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:25,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1208447391, now seen corresponding path program 1 times [2024-11-08 11:39:25,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:25,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906589385] [2024-11-08 11:39:25,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:25,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:25,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:25,694 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 473 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2024-11-08 11:39:25,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:25,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906589385] [2024-11-08 11:39:25,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906589385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:25,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:25,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 11:39:25,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180905536] [2024-11-08 11:39:25,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:25,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:39:25,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:25,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:39:25,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:39:25,697 INFO L87 Difference]: Start difference. First operand 53349 states and 58945 transitions. Second operand has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:27,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:27,902 INFO L93 Difference]: Finished difference Result 132697 states and 146072 transitions. [2024-11-08 11:39:27,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:39:27,902 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 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 499 [2024-11-08 11:39:27,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:27,977 INFO L225 Difference]: With dead ends: 132697 [2024-11-08 11:39:27,977 INFO L226 Difference]: Without dead ends: 75520 [2024-11-08 11:39:28,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:39:28,012 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 740 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 2449 mSolverCounterSat, 422 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 740 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 2871 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 422 IncrementalHoareTripleChecker+Valid, 2449 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:28,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [740 Valid, 198 Invalid, 2871 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [422 Valid, 2449 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 11:39:28,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75520 states. [2024-11-08 11:39:28,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75520 to 69531. [2024-11-08 11:39:28,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69531 states, 69530 states have (on average 1.101754638285632) internal successors, (76605), 69530 states have internal predecessors, (76605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:28,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69531 states to 69531 states and 76605 transitions. [2024-11-08 11:39:28,663 INFO L78 Accepts]: Start accepts. Automaton has 69531 states and 76605 transitions. Word has length 499 [2024-11-08 11:39:28,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:28,664 INFO L471 AbstractCegarLoop]: Abstraction has 69531 states and 76605 transitions. [2024-11-08 11:39:28,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.25) internal successors, (337), 4 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:28,664 INFO L276 IsEmpty]: Start isEmpty. Operand 69531 states and 76605 transitions. [2024-11-08 11:39:28,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2024-11-08 11:39:28,673 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:28,673 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:28,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 11:39:28,673 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:28,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:28,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1047721825, now seen corresponding path program 1 times [2024-11-08 11:39:28,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:28,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811023701] [2024-11-08 11:39:28,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:28,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:28,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:29,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 579 proven. 0 refuted. 0 times theorem prover too weak. 445 trivial. 0 not checked. [2024-11-08 11:39:29,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:29,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811023701] [2024-11-08 11:39:29,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811023701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:29,075 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:29,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 11:39:29,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112199930] [2024-11-08 11:39:29,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:29,076 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:29,076 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:29,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:29,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:29,076 INFO L87 Difference]: Start difference. First operand 69531 states and 76605 transitions. Second operand has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:29,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:29,967 INFO L93 Difference]: Finished difference Result 136920 states and 150558 transitions. [2024-11-08 11:39:29,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:29,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 515 [2024-11-08 11:39:29,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:30,036 INFO L225 Difference]: With dead ends: 136920 [2024-11-08 11:39:30,036 INFO L226 Difference]: Without dead ends: 67391 [2024-11-08 11:39:30,050 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:30,051 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 623 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:30,051 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 101 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 11:39:30,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67391 states. [2024-11-08 11:39:30,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67391 to 67380. [2024-11-08 11:39:30,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67380 states, 67379 states have (on average 1.0971222487718726) internal successors, (73923), 67379 states have internal predecessors, (73923), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:30,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67380 states to 67380 states and 73923 transitions. [2024-11-08 11:39:30,750 INFO L78 Accepts]: Start accepts. Automaton has 67380 states and 73923 transitions. Word has length 515 [2024-11-08 11:39:30,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:30,751 INFO L471 AbstractCegarLoop]: Abstraction has 67380 states and 73923 transitions. [2024-11-08 11:39:30,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.66666666666667) internal successors, (209), 2 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:30,751 INFO L276 IsEmpty]: Start isEmpty. Operand 67380 states and 73923 transitions. [2024-11-08 11:39:30,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 516 [2024-11-08 11:39:30,763 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:30,763 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:30,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 11:39:30,764 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:30,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:30,764 INFO L85 PathProgramCache]: Analyzing trace with hash 1522403233, now seen corresponding path program 1 times [2024-11-08 11:39:30,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:30,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173911041] [2024-11-08 11:39:30,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:30,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:30,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:31,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1024 backedges. 702 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2024-11-08 11:39:31,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:31,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173911041] [2024-11-08 11:39:31,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173911041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:31,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:31,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 11:39:31,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31823725] [2024-11-08 11:39:31,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:31,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:39:31,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:31,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:39:31,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:39:31,460 INFO L87 Difference]: Start difference. First operand 67380 states and 73923 transitions. Second operand has 4 states, 4 states have (on average 69.5) internal successors, (278), 4 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:33,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:33,379 INFO L93 Difference]: Finished difference Result 146669 states and 160872 transitions. [2024-11-08 11:39:33,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:39:33,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 69.5) internal successors, (278), 4 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 515 [2024-11-08 11:39:33,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:33,451 INFO L225 Difference]: With dead ends: 146669 [2024-11-08 11:39:33,451 INFO L226 Difference]: Without dead ends: 78016 [2024-11-08 11:39:33,483 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:39:33,483 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 814 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 2100 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 782 SdHoareTripleChecker+Invalid, 2416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 2100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:33,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 782 Invalid, 2416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 2100 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-08 11:39:33,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78016 states. [2024-11-08 11:39:34,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78016 to 66501. [2024-11-08 11:39:34,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66501 states, 66500 states have (on average 1.0954285714285714) internal successors, (72846), 66500 states have internal predecessors, (72846), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:34,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66501 states to 66501 states and 72846 transitions. [2024-11-08 11:39:34,138 INFO L78 Accepts]: Start accepts. Automaton has 66501 states and 72846 transitions. Word has length 515 [2024-11-08 11:39:34,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:34,139 INFO L471 AbstractCegarLoop]: Abstraction has 66501 states and 72846 transitions. [2024-11-08 11:39:34,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 69.5) internal successors, (278), 4 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:34,139 INFO L276 IsEmpty]: Start isEmpty. Operand 66501 states and 72846 transitions. [2024-11-08 11:39:34,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2024-11-08 11:39:34,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:34,148 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:34,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 11:39:34,148 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:34,148 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:34,148 INFO L85 PathProgramCache]: Analyzing trace with hash 80934831, now seen corresponding path program 1 times [2024-11-08 11:39:34,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:34,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163399690] [2024-11-08 11:39:34,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:34,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:35,173 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 463 proven. 53 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-08 11:39:35,174 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:35,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163399690] [2024-11-08 11:39:35,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163399690] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 11:39:35,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1568139522] [2024-11-08 11:39:35,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:35,174 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:39:35,174 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 11:39:35,175 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) [2024-11-08 11:39:35,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 11:39:35,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:35,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 690 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-08 11:39:35,380 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 11:39:35,654 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 479 proven. 82 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-08 11:39:35,654 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 11:39:36,320 INFO L134 CoverageAnalysis]: Checked inductivity of 785 backedges. 479 proven. 82 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2024-11-08 11:39:36,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1568139522] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 11:39:36,321 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 11:39:36,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 3] total 9 [2024-11-08 11:39:36,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410378662] [2024-11-08 11:39:36,321 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 11:39:36,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 11:39:36,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:36,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 11:39:36,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 11:39:36,323 INFO L87 Difference]: Start difference. First operand 66501 states and 72846 transitions. Second operand has 9 states, 9 states have (on average 102.44444444444444) internal successors, (922), 9 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:45,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:45,768 INFO L93 Difference]: Finished difference Result 173007 states and 188480 transitions. [2024-11-08 11:39:45,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-08 11:39:45,768 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 102.44444444444444) internal successors, (922), 9 states have internal predecessors, (922), 0 states have call successors, (0), 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 544 [2024-11-08 11:39:45,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:45,870 INFO L225 Difference]: With dead ends: 173007 [2024-11-08 11:39:45,870 INFO L226 Difference]: Without dead ends: 103099 [2024-11-08 11:39:46,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1123 GetRequests, 1100 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=164, Invalid=436, Unknown=0, NotChecked=0, Total=600 [2024-11-08 11:39:46,016 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 10020 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 14116 mSolverCounterSat, 2304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10020 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 16420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2304 IncrementalHoareTripleChecker+Valid, 14116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.6s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:46,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10020 Valid, 385 Invalid, 16420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2304 Valid, 14116 Invalid, 0 Unknown, 0 Unchecked, 8.6s Time] [2024-11-08 11:39:46,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103099 states. [2024-11-08 11:39:46,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103099 to 80939. [2024-11-08 11:39:46,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80939 states, 80938 states have (on average 1.077454347772369) internal successors, (87207), 80938 states have internal predecessors, (87207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:46,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80939 states to 80939 states and 87207 transitions. [2024-11-08 11:39:46,971 INFO L78 Accepts]: Start accepts. Automaton has 80939 states and 87207 transitions. Word has length 544 [2024-11-08 11:39:46,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:46,971 INFO L471 AbstractCegarLoop]: Abstraction has 80939 states and 87207 transitions. [2024-11-08 11:39:46,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 102.44444444444444) internal successors, (922), 9 states have internal predecessors, (922), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:46,971 INFO L276 IsEmpty]: Start isEmpty. Operand 80939 states and 87207 transitions. [2024-11-08 11:39:46,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-11-08 11:39:46,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:46,986 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:46,999 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 11:39:47,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 11:39:47,187 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:47,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:47,187 INFO L85 PathProgramCache]: Analyzing trace with hash 903359021, now seen corresponding path program 1 times [2024-11-08 11:39:47,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:47,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080253699] [2024-11-08 11:39:47,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:47,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:47,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:47,916 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2024-11-08 11:39:47,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:47,917 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080253699] [2024-11-08 11:39:47,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080253699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:47,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:47,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:39:47,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002688202] [2024-11-08 11:39:47,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:47,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:47,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:47,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:47,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:47,918 INFO L87 Difference]: Start difference. First operand 80939 states and 87207 transitions. Second operand has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:49,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:49,193 INFO L93 Difference]: Finished difference Result 161450 states and 173974 transitions. [2024-11-08 11:39:49,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:49,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 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 622 [2024-11-08 11:39:49,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:49,254 INFO L225 Difference]: With dead ends: 161450 [2024-11-08 11:39:49,255 INFO L226 Difference]: Without dead ends: 80513 [2024-11-08 11:39:49,267 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:49,267 INFO L432 NwaCegarLoop]: 519 mSDtfsCounter, 562 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 1168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:49,268 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 533 Invalid, 1168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 11:39:49,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80513 states. [2024-11-08 11:39:49,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80513 to 80513. [2024-11-08 11:39:49,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80513 states, 80512 states have (on average 1.0775288155802862) internal successors, (86754), 80512 states have internal predecessors, (86754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:50,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80513 states to 80513 states and 86754 transitions. [2024-11-08 11:39:50,025 INFO L78 Accepts]: Start accepts. Automaton has 80513 states and 86754 transitions. Word has length 622 [2024-11-08 11:39:50,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:50,026 INFO L471 AbstractCegarLoop]: Abstraction has 80513 states and 86754 transitions. [2024-11-08 11:39:50,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 153.33333333333334) internal successors, (460), 3 states have internal predecessors, (460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:50,026 INFO L276 IsEmpty]: Start isEmpty. Operand 80513 states and 86754 transitions. [2024-11-08 11:39:50,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 642 [2024-11-08 11:39:50,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:50,038 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:50,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 11:39:50,038 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:50,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:50,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1747705862, now seen corresponding path program 1 times [2024-11-08 11:39:50,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:50,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053577504] [2024-11-08 11:39:50,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:50,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:50,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:50,242 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 468 proven. 0 refuted. 0 times theorem prover too weak. 365 trivial. 0 not checked. [2024-11-08 11:39:50,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:50,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053577504] [2024-11-08 11:39:50,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053577504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:50,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:50,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:39:50,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733482470] [2024-11-08 11:39:50,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:50,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:50,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:50,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:50,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:50,244 INFO L87 Difference]: Start difference. First operand 80513 states and 86754 transitions. Second operand has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:51,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:51,664 INFO L93 Difference]: Finished difference Result 161879 states and 174417 transitions. [2024-11-08 11:39:51,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:51,664 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 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 641 [2024-11-08 11:39:51,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:51,747 INFO L225 Difference]: With dead ends: 161879 [2024-11-08 11:39:51,747 INFO L226 Difference]: Without dead ends: 81368 [2024-11-08 11:39:51,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:51,790 INFO L432 NwaCegarLoop]: 601 mSDtfsCounter, 498 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 1115 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 498 SdHoareTripleChecker+Valid, 638 SdHoareTripleChecker+Invalid, 1310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 1115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:51,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [498 Valid, 638 Invalid, 1310 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 1115 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 11:39:51,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81368 states. [2024-11-08 11:39:52,625 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81368 to 80939. [2024-11-08 11:39:52,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80939 states, 80938 states have (on average 1.0711779386691047) internal successors, (86699), 80938 states have internal predecessors, (86699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:52,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80939 states to 80939 states and 86699 transitions. [2024-11-08 11:39:52,779 INFO L78 Accepts]: Start accepts. Automaton has 80939 states and 86699 transitions. Word has length 641 [2024-11-08 11:39:52,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:52,780 INFO L471 AbstractCegarLoop]: Abstraction has 80939 states and 86699 transitions. [2024-11-08 11:39:52,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 120.33333333333333) internal successors, (361), 3 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:52,780 INFO L276 IsEmpty]: Start isEmpty. Operand 80939 states and 86699 transitions. [2024-11-08 11:39:52,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 704 [2024-11-08 11:39:52,799 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:52,799 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:52,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 11:39:52,800 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:52,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:52,800 INFO L85 PathProgramCache]: Analyzing trace with hash 736192065, now seen corresponding path program 1 times [2024-11-08 11:39:52,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:52,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834178871] [2024-11-08 11:39:52,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:52,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:52,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:53,594 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 453 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2024-11-08 11:39:53,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:53,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834178871] [2024-11-08 11:39:53,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834178871] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:53,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:53,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:39:53,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555001836] [2024-11-08 11:39:53,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:53,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:39:53,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:53,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:39:53,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:53,596 INFO L87 Difference]: Start difference. First operand 80939 states and 86699 transitions. Second operand has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:55,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:55,075 INFO L93 Difference]: Finished difference Result 168698 states and 180622 transitions. [2024-11-08 11:39:55,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:39:55,076 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 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 703 [2024-11-08 11:39:55,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:55,148 INFO L225 Difference]: With dead ends: 168698 [2024-11-08 11:39:55,148 INFO L226 Difference]: Without dead ends: 87335 [2024-11-08 11:39:55,178 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:39:55,179 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 413 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 165 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 1382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 165 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:55,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [413 Valid, 257 Invalid, 1382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [165 Valid, 1217 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 11:39:55,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87335 states. [2024-11-08 11:39:55,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87335 to 86045. [2024-11-08 11:39:55,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86045 states, 86044 states have (on average 1.0702082655385616) internal successors, (92085), 86044 states have internal predecessors, (92085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:55,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86045 states to 86045 states and 92085 transitions. [2024-11-08 11:39:55,982 INFO L78 Accepts]: Start accepts. Automaton has 86045 states and 92085 transitions. Word has length 703 [2024-11-08 11:39:55,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:39:55,983 INFO L471 AbstractCegarLoop]: Abstraction has 86045 states and 92085 transitions. [2024-11-08 11:39:55,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 180.33333333333334) internal successors, (541), 3 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:55,983 INFO L276 IsEmpty]: Start isEmpty. Operand 86045 states and 92085 transitions. [2024-11-08 11:39:55,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 705 [2024-11-08 11:39:55,996 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:39:55,996 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:39:55,996 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 11:39:55,996 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:39:55,996 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:39:55,996 INFO L85 PathProgramCache]: Analyzing trace with hash 1094676878, now seen corresponding path program 1 times [2024-11-08 11:39:55,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:39:55,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428179929] [2024-11-08 11:39:55,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:39:55,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:39:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:39:56,638 INFO L134 CoverageAnalysis]: Checked inductivity of 1236 backedges. 1007 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-11-08 11:39:56,638 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:39:56,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428179929] [2024-11-08 11:39:56,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428179929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:39:56,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:39:56,639 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 11:39:56,639 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053247838] [2024-11-08 11:39:56,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:39:56,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:39:56,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:39:56,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:39:56,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:39:56,641 INFO L87 Difference]: Start difference. First operand 86045 states and 92085 transitions. Second operand has 4 states, 4 states have (on average 137.5) internal successors, (550), 4 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:39:58,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:39:58,897 INFO L93 Difference]: Finished difference Result 193803 states and 207024 transitions. [2024-11-08 11:39:58,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 11:39:58,898 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 137.5) internal successors, (550), 4 states have internal predecessors, (550), 0 states have call successors, (0), 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 704 [2024-11-08 11:39:58,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:39:59,246 INFO L225 Difference]: With dead ends: 193803 [2024-11-08 11:39:59,246 INFO L226 Difference]: Without dead ends: 106910 [2024-11-08 11:39:59,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:39:59,271 INFO L432 NwaCegarLoop]: 149 mSDtfsCounter, 623 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 2390 mSolverCounterSat, 370 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 623 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 2760 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 370 IncrementalHoareTripleChecker+Valid, 2390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-08 11:39:59,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [623 Valid, 252 Invalid, 2760 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [370 Valid, 2390 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-08 11:39:59,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106910 states. [2024-11-08 11:40:00,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106910 to 98823. [2024-11-08 11:40:00,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98823 states, 98822 states have (on average 1.0678087875169497) internal successors, (105523), 98822 states have internal predecessors, (105523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:00,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98823 states to 98823 states and 105523 transitions. [2024-11-08 11:40:00,303 INFO L78 Accepts]: Start accepts. Automaton has 98823 states and 105523 transitions. Word has length 704 [2024-11-08 11:40:00,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:40:00,303 INFO L471 AbstractCegarLoop]: Abstraction has 98823 states and 105523 transitions. [2024-11-08 11:40:00,303 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 137.5) internal successors, (550), 4 states have internal predecessors, (550), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:00,303 INFO L276 IsEmpty]: Start isEmpty. Operand 98823 states and 105523 transitions. [2024-11-08 11:40:00,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 733 [2024-11-08 11:40:00,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:40:00,318 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:40:00,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 11:40:00,318 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:40:00,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:40:00,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1625663084, now seen corresponding path program 1 times [2024-11-08 11:40:00,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:40:00,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472988964] [2024-11-08 11:40:00,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:40:00,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:40:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:40:00,850 INFO L134 CoverageAnalysis]: Checked inductivity of 1302 backedges. 933 proven. 0 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2024-11-08 11:40:00,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:40:00,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472988964] [2024-11-08 11:40:00,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472988964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:40:00,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:40:00,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 11:40:00,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690645469] [2024-11-08 11:40:00,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:40:00,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 11:40:00,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:40:00,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 11:40:00,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:40:00,852 INFO L87 Difference]: Start difference. First operand 98823 states and 105523 transitions. Second operand has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:02,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 11:40:02,278 INFO L93 Difference]: Finished difference Result 210436 states and 224854 transitions. [2024-11-08 11:40:02,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 11:40:02,278 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 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 732 [2024-11-08 11:40:02,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 11:40:02,403 INFO L225 Difference]: With dead ends: 210436 [2024-11-08 11:40:02,403 INFO L226 Difference]: Without dead ends: 111190 [2024-11-08 11:40:02,462 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 11:40:02,463 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 429 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 1192 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 429 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 1192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 11:40:02,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [429 Valid, 201 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 1192 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 11:40:02,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111190 states. [2024-11-08 11:40:04,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111190 to 100097. [2024-11-08 11:40:04,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100097 states, 100096 states have (on average 1.069193574168798) internal successors, (107022), 100096 states have internal predecessors, (107022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:04,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100097 states to 100097 states and 107022 transitions. [2024-11-08 11:40:04,187 INFO L78 Accepts]: Start accepts. Automaton has 100097 states and 107022 transitions. Word has length 732 [2024-11-08 11:40:04,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 11:40:04,188 INFO L471 AbstractCegarLoop]: Abstraction has 100097 states and 107022 transitions. [2024-11-08 11:40:04,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.66666666666666) internal successors, (419), 3 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 11:40:04,188 INFO L276 IsEmpty]: Start isEmpty. Operand 100097 states and 107022 transitions. [2024-11-08 11:40:04,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 735 [2024-11-08 11:40:04,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 11:40:04,202 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 11:40:04,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 11:40:04,202 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 11:40:04,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 11:40:04,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1273742438, now seen corresponding path program 1 times [2024-11-08 11:40:04,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 11:40:04,203 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092507205] [2024-11-08 11:40:04,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 11:40:04,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 11:40:04,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 11:40:04,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1090 backedges. 861 proven. 0 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-11-08 11:40:04,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 11:40:04,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092507205] [2024-11-08 11:40:04,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092507205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 11:40:04,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 11:40:04,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 11:40:04,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148942072] [2024-11-08 11:40:04,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 11:40:04,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 11:40:04,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 11:40:04,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 11:40:04,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-08 11:40:04,558 INFO L87 Difference]: Start difference. First operand 100097 states and 107022 transitions. Second operand has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)