./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label27.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label27.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 dc961fc62f24960fbef105f97d1eee66be6194c126d8d078cb5da412dc4c48ac --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 16:18:47,668 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 16:18:47,733 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 16:18:47,736 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 16:18:47,736 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 16:18:47,755 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 16:18:47,756 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 16:18:47,771 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 16:18:47,772 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 16:18:47,772 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 16:18:47,772 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 16:18:47,772 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 16:18:47,773 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 16:18:47,773 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 16:18:47,773 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 16:18:47,773 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 16:18:47,774 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 16:18:47,774 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 16:18:47,777 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 16:18:47,777 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 16:18:47,777 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 16:18:47,781 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 16:18:47,781 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 16:18:47,781 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 16:18:47,781 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 16:18:47,781 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 16:18:47,781 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 16:18:47,782 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 16:18:47,782 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 16:18:47,782 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 16:18:47,782 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 16:18:47,782 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 16:18:47,782 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 16:18:47,783 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 16:18:47,783 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 16:18:47,783 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 16:18:47,784 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 16:18:47,784 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 16:18:47,785 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 16:18:47,785 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 16:18:47,785 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 16:18:47,785 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 16:18:47,786 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dc961fc62f24960fbef105f97d1eee66be6194c126d8d078cb5da412dc4c48ac [2024-10-12 16:18:48,016 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 16:18:48,036 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 16:18:48,038 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 16:18:48,039 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 16:18:48,039 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 16:18:48,041 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label27.c [2024-10-12 16:18:49,307 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 16:18:49,575 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 16:18:49,575 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label27.c [2024-10-12 16:18:49,597 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9742b824/1cb808f899d644218b816a14d068976e/FLAG80a774534 [2024-10-12 16:18:49,875 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b9742b824/1cb808f899d644218b816a14d068976e [2024-10-12 16:18:49,877 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 16:18:49,878 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 16:18:49,879 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 16:18:49,879 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 16:18:49,886 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 16:18:49,887 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:18:49" (1/1) ... [2024-10-12 16:18:49,888 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bfe9a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:18:49, skipping insertion in model container [2024-10-12 16:18:49,888 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 04:18:49" (1/1) ... [2024-10-12 16:18:49,954 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 16:18:50,134 WARN L248 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/Problem15_label27.c[4605,4618] [2024-10-12 16:18:50,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 16:18:50,399 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 16:18:50,420 WARN L248 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/Problem15_label27.c[4605,4618] [2024-10-12 16:18:50,621 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 16:18:50,638 INFO L204 MainTranslator]: Completed translation [2024-10-12 16:18:50,639 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:18:50 WrapperNode [2024-10-12 16:18:50,639 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 16:18:50,640 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 16:18:50,640 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 16:18:50,640 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 16:18:50,646 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:18:50" (1/1) ... [2024-10-12 16:18:50,704 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:18:50" (1/1) ... [2024-10-12 16:18:50,814 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1760 [2024-10-12 16:18:50,815 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 16:18:50,815 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 16:18:50,815 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 16:18:50,816 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 16:18:50,824 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:18:50" (1/1) ... [2024-10-12 16:18:50,824 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:18:50" (1/1) ... [2024-10-12 16:18:50,838 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:18:50" (1/1) ... [2024-10-12 16:18:50,896 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]. [2024-10-12 16:18:50,896 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:18:50" (1/1) ... [2024-10-12 16:18:50,896 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:18:50" (1/1) ... [2024-10-12 16:18:50,947 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:18:50" (1/1) ... [2024-10-12 16:18:51,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:18:50" (1/1) ... [2024-10-12 16:18:51,043 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:18:50" (1/1) ... [2024-10-12 16:18:51,052 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:18:50" (1/1) ... [2024-10-12 16:18:51,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 16:18:51,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 16:18:51,099 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 16:18:51,099 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 16:18:51,099 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:18:50" (1/1) ... [2024-10-12 16:18:51,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 16:18:51,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:18:51,129 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) [2024-10-12 16:18:51,138 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 [2024-10-12 16:18:51,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 16:18:51,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 16:18:51,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 16:18:51,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 16:18:51,226 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 16:18:51,228 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 16:18:53,109 INFO L? ?]: Removed 246 outVars from TransFormulas that were not future-live. [2024-10-12 16:18:53,109 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 16:18:53,171 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 16:18:53,174 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-12 16:18:53,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:18:53 BoogieIcfgContainer [2024-10-12 16:18:53,175 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 16:18:53,179 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 16:18:53,179 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 16:18:53,182 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 16:18:53,185 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 04:18:49" (1/3) ... [2024-10-12 16:18:53,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d146a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 04:18:53, skipping insertion in model container [2024-10-12 16:18:53,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 04:18:50" (2/3) ... [2024-10-12 16:18:53,186 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d146a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 04:18:53, skipping insertion in model container [2024-10-12 16:18:53,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 04:18:53" (3/3) ... [2024-10-12 16:18:53,187 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label27.c [2024-10-12 16:18:53,214 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 16:18:53,214 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 16:18:53,308 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 16:18:53,316 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;@286db857, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 16:18:53,320 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 16:18:53,324 INFO L276 IsEmpty]: Start isEmpty. Operand has 362 states, 360 states have (on average 1.9111111111111112) internal successors, (688), 361 states have internal predecessors, (688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:18:53,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-12 16:18:53,336 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:18:53,337 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:18:53,337 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:18:53,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:18:53,341 INFO L85 PathProgramCache]: Analyzing trace with hash -1615237521, now seen corresponding path program 1 times [2024-10-12 16:18:53,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:18:53,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7185402] [2024-10-12 16:18:53,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:18:53,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:18:53,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:18:53,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 16:18:53,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:18:53,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7185402] [2024-10-12 16:18:53,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7185402] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:18:53,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:18:53,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 16:18:53,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366782778] [2024-10-12 16:18:53,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:18:53,499 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 16:18:53,500 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:18:53,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 16:18:53,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 16:18:53,522 INFO L87 Difference]: Start difference. First operand has 362 states, 360 states have (on average 1.9111111111111112) internal successors, (688), 361 states have internal predecessors, (688), 0 states have call successors, (0), 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 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:18:53,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:18:53,608 INFO L93 Difference]: Finished difference Result 723 states and 1375 transitions. [2024-10-12 16:18:53,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 16:18:53,611 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-10-12 16:18:53,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:18:53,620 INFO L225 Difference]: With dead ends: 723 [2024-10-12 16:18:53,620 INFO L226 Difference]: Without dead ends: 360 [2024-10-12 16:18:53,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 16:18:53,626 INFO L432 NwaCegarLoop]: 623 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 623 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 16:18:53,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 623 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 16:18:53,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-10-12 16:18:53,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2024-10-12 16:18:53,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.7353760445682451) internal successors, (623), 359 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:18:53,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 623 transitions. [2024-10-12 16:18:53,666 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 623 transitions. Word has length 36 [2024-10-12 16:18:53,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:18:53,666 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 623 transitions. [2024-10-12 16:18:53,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:18:53,666 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 623 transitions. [2024-10-12 16:18:53,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-12 16:18:53,667 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:18:53,667 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:18:53,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 16:18:53,668 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:18:53,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:18:53,668 INFO L85 PathProgramCache]: Analyzing trace with hash -1362236220, now seen corresponding path program 1 times [2024-10-12 16:18:53,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:18:53,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791959596] [2024-10-12 16:18:53,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:18:53,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:18:53,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:18:53,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 16:18:53,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:18:53,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791959596] [2024-10-12 16:18:53,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791959596] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:18:53,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:18:53,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 16:18:53,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124418046] [2024-10-12 16:18:53,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:18:53,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:18:53,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:18:53,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:18:53,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:18:53,767 INFO L87 Difference]: Start difference. First operand 360 states and 623 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:18:55,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:18:55,297 INFO L93 Difference]: Finished difference Result 1023 states and 1787 transitions. [2024-10-12 16:18:55,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:18:55,297 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2024-10-12 16:18:55,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:18:55,301 INFO L225 Difference]: With dead ends: 1023 [2024-10-12 16:18:55,302 INFO L226 Difference]: Without dead ends: 664 [2024-10-12 16:18:55,302 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 [2024-10-12 16:18:55,303 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 280 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 916 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 280 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-12 16:18:55,304 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [280 Valid, 316 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 916 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-12 16:18:55,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states. [2024-10-12 16:18:55,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 662. [2024-10-12 16:18:55,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 1.4826021180030258) internal successors, (980), 661 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:18:55,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 980 transitions. [2024-10-12 16:18:55,325 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 980 transitions. Word has length 36 [2024-10-12 16:18:55,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:18:55,326 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 980 transitions. [2024-10-12 16:18:55,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 2 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:18:55,326 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 980 transitions. [2024-10-12 16:18:55,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-10-12 16:18:55,328 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:18:55,328 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:18:55,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 16:18:55,329 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:18:55,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:18:55,329 INFO L85 PathProgramCache]: Analyzing trace with hash 76594452, now seen corresponding path program 1 times [2024-10-12 16:18:55,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:18:55,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519559720] [2024-10-12 16:18:55,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:18:55,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:18:55,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:18:55,567 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 16:18:55,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:18:55,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519559720] [2024-10-12 16:18:55,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519559720] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:18:55,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:18:55,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 16:18:55,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513693664] [2024-10-12 16:18:55,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:18:55,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:18:55,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:18:55,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:18:55,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:18:55,570 INFO L87 Difference]: Start difference. First operand 662 states and 980 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:18:56,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:18:56,690 INFO L93 Difference]: Finished difference Result 1623 states and 2314 transitions. [2024-10-12 16:18:56,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:18:56,691 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2024-10-12 16:18:56,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:18:56,694 INFO L225 Difference]: With dead ends: 1623 [2024-10-12 16:18:56,694 INFO L226 Difference]: Without dead ends: 962 [2024-10-12 16:18:56,695 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 [2024-10-12 16:18:56,696 INFO L432 NwaCegarLoop]: 297 mSDtfsCounter, 237 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 935 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 16:18:56,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 335 Invalid, 935 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 911 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 16:18:56,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states. [2024-10-12 16:18:56,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 962. [2024-10-12 16:18:56,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 962 states, 961 states have (on average 1.3631633714880333) internal successors, (1310), 961 states have internal predecessors, (1310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:18:56,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 962 states to 962 states and 1310 transitions. [2024-10-12 16:18:56,718 INFO L78 Accepts]: Start accepts. Automaton has 962 states and 1310 transitions. Word has length 101 [2024-10-12 16:18:56,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:18:56,719 INFO L471 AbstractCegarLoop]: Abstraction has 962 states and 1310 transitions. [2024-10-12 16:18:56,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 2 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:18:56,719 INFO L276 IsEmpty]: Start isEmpty. Operand 962 states and 1310 transitions. [2024-10-12 16:18:56,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-10-12 16:18:56,721 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:18:56,722 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:18:56,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 16:18:56,722 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:18:56,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:18:56,723 INFO L85 PathProgramCache]: Analyzing trace with hash 439267481, now seen corresponding path program 1 times [2024-10-12 16:18:56,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:18:56,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566380446] [2024-10-12 16:18:56,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:18:56,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:18:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:18:56,841 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 16:18:56,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:18:56,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566380446] [2024-10-12 16:18:56,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566380446] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:18:56,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:18:56,842 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 16:18:56,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432888977] [2024-10-12 16:18:56,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:18:56,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:18:56,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:18:56,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:18:56,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:18:56,844 INFO L87 Difference]: Start difference. First operand 962 states and 1310 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:18:58,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:18:58,539 INFO L93 Difference]: Finished difference Result 2228 states and 3185 transitions. [2024-10-12 16:18:58,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:18:58,540 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 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 106 [2024-10-12 16:18:58,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:18:58,544 INFO L225 Difference]: With dead ends: 2228 [2024-10-12 16:18:58,545 INFO L226 Difference]: Without dead ends: 1566 [2024-10-12 16:18:58,546 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 [2024-10-12 16:18:58,547 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 256 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 316 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-12 16:18:58,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 316 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-12 16:18:58,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1566 states. [2024-10-12 16:18:58,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1566 to 1265. [2024-10-12 16:18:58,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1265 states, 1264 states have (on average 1.3045886075949367) internal successors, (1649), 1264 states have internal predecessors, (1649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:18:58,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1265 states to 1265 states and 1649 transitions. [2024-10-12 16:18:58,567 INFO L78 Accepts]: Start accepts. Automaton has 1265 states and 1649 transitions. Word has length 106 [2024-10-12 16:18:58,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:18:58,568 INFO L471 AbstractCegarLoop]: Abstraction has 1265 states and 1649 transitions. [2024-10-12 16:18:58,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:18:58,568 INFO L276 IsEmpty]: Start isEmpty. Operand 1265 states and 1649 transitions. [2024-10-12 16:18:58,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2024-10-12 16:18:58,577 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:18:58,577 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-12 16:18:58,577 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 16:18:58,577 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:18:58,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:18:58,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1761907691, now seen corresponding path program 1 times [2024-10-12 16:18:58,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:18:58,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161661746] [2024-10-12 16:18:58,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:18:58,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:18:58,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:18:58,842 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 16:18:58,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:18:58,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161661746] [2024-10-12 16:18:58,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161661746] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:18:58,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:18:58,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:18:58,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195006853] [2024-10-12 16:18:58,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:18:58,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 16:18:58,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:18:58,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 16:18:58,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:18:58,846 INFO L87 Difference]: Start difference. First operand 1265 states and 1649 transitions. Second operand has 4 states, 4 states have (on average 50.5) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:01,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:01,321 INFO L93 Difference]: Finished difference Result 4669 states and 6169 transitions. [2024-10-12 16:19:01,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:19:01,322 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 50.5) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 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 202 [2024-10-12 16:19:01,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:01,331 INFO L225 Difference]: With dead ends: 4669 [2024-10-12 16:19:01,332 INFO L226 Difference]: Without dead ends: 3405 [2024-10-12 16:19:01,333 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:19:01,337 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 487 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 2280 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 487 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 2549 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 2280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:01,339 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [487 Valid, 374 Invalid, 2549 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 2280 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-10-12 16:19:01,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3405 states. [2024-10-12 16:19:01,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3405 to 3380. [2024-10-12 16:19:01,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3380 states, 3379 states have (on average 1.2370523823616455) internal successors, (4180), 3379 states have internal predecessors, (4180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:01,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3380 states to 3380 states and 4180 transitions. [2024-10-12 16:19:01,379 INFO L78 Accepts]: Start accepts. Automaton has 3380 states and 4180 transitions. Word has length 202 [2024-10-12 16:19:01,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:01,380 INFO L471 AbstractCegarLoop]: Abstraction has 3380 states and 4180 transitions. [2024-10-12 16:19:01,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.5) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:01,381 INFO L276 IsEmpty]: Start isEmpty. Operand 3380 states and 4180 transitions. [2024-10-12 16:19:01,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-10-12 16:19:01,387 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:01,387 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-12 16:19:01,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 16:19:01,387 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:01,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:01,388 INFO L85 PathProgramCache]: Analyzing trace with hash 1984214943, now seen corresponding path program 1 times [2024-10-12 16:19:01,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:01,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665417372] [2024-10-12 16:19:01,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:01,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:01,531 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-10-12 16:19:01,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:01,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665417372] [2024-10-12 16:19:01,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665417372] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:01,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:19:01,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 16:19:01,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169968483] [2024-10-12 16:19:01,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:01,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:19:01,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:01,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:19:01,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:19:01,535 INFO L87 Difference]: Start difference. First operand 3380 states and 4180 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:02,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:02,691 INFO L93 Difference]: Finished difference Result 8562 states and 10755 transitions. [2024-10-12 16:19:02,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:19:02,692 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 206 [2024-10-12 16:19:02,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:02,707 INFO L225 Difference]: With dead ends: 8562 [2024-10-12 16:19:02,707 INFO L226 Difference]: Without dead ends: 5482 [2024-10-12 16:19:02,711 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 [2024-10-12 16:19:02,711 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 257 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 1090 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:02,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 337 Invalid, 1090 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 16:19:02,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5482 states. [2024-10-12 16:19:02,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5482 to 5477. [2024-10-12 16:19:02,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5477 states, 5476 states have (on average 1.1689189189189189) internal successors, (6401), 5476 states have internal predecessors, (6401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:02,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5477 states to 5477 states and 6401 transitions. [2024-10-12 16:19:02,780 INFO L78 Accepts]: Start accepts. Automaton has 5477 states and 6401 transitions. Word has length 206 [2024-10-12 16:19:02,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:02,782 INFO L471 AbstractCegarLoop]: Abstraction has 5477 states and 6401 transitions. [2024-10-12 16:19:02,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:02,783 INFO L276 IsEmpty]: Start isEmpty. Operand 5477 states and 6401 transitions. [2024-10-12 16:19:02,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-10-12 16:19:02,786 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:02,786 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-12 16:19:02,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 16:19:02,786 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:02,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:02,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1521670217, now seen corresponding path program 1 times [2024-10-12 16:19:02,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:02,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030874549] [2024-10-12 16:19:02,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:02,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:02,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:03,311 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-10-12 16:19:03,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:03,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030874549] [2024-10-12 16:19:03,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030874549] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:03,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:19:03,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 16:19:03,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327266541] [2024-10-12 16:19:03,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:03,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:19:03,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:03,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:19:03,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:19:03,314 INFO L87 Difference]: Start difference. First operand 5477 states and 6401 transitions. Second operand has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 2 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:04,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:04,497 INFO L93 Difference]: Finished difference Result 10654 states and 12490 transitions. [2024-10-12 16:19:04,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:19:04,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 2 states have internal predecessors, (274), 0 states have call successors, (0), 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 308 [2024-10-12 16:19:04,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:04,510 INFO L225 Difference]: With dead ends: 10654 [2024-10-12 16:19:04,510 INFO L226 Difference]: Without dead ends: 5477 [2024-10-12 16:19:04,514 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 [2024-10-12 16:19:04,515 INFO L432 NwaCegarLoop]: 322 mSDtfsCounter, 105 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:04,515 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 357 Invalid, 894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 889 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 16:19:04,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5477 states. [2024-10-12 16:19:04,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5477 to 5477. [2024-10-12 16:19:04,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5477 states, 5476 states have (on average 1.1678232286340395) internal successors, (6395), 5476 states have internal predecessors, (6395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:04,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5477 states to 5477 states and 6395 transitions. [2024-10-12 16:19:04,569 INFO L78 Accepts]: Start accepts. Automaton has 5477 states and 6395 transitions. Word has length 308 [2024-10-12 16:19:04,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:04,570 INFO L471 AbstractCegarLoop]: Abstraction has 5477 states and 6395 transitions. [2024-10-12 16:19:04,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.33333333333333) internal successors, (274), 2 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:04,570 INFO L276 IsEmpty]: Start isEmpty. Operand 5477 states and 6395 transitions. [2024-10-12 16:19:04,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 324 [2024-10-12 16:19:04,573 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:04,573 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-12 16:19:04,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 16:19:04,573 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:04,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:04,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1057829138, now seen corresponding path program 1 times [2024-10-12 16:19:04,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:04,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044424924] [2024-10-12 16:19:04,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:04,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:04,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:04,763 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-10-12 16:19:04,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:04,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044424924] [2024-10-12 16:19:04,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044424924] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:04,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:19:04,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:19:04,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047635951] [2024-10-12 16:19:04,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:04,765 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:19:04,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:04,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:19:04,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:19:04,766 INFO L87 Difference]: Start difference. First operand 5477 states and 6395 transitions. Second operand has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:06,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:06,552 INFO L93 Difference]: Finished difference Result 11850 states and 14152 transitions. [2024-10-12 16:19:06,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:19:06,553 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 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 323 [2024-10-12 16:19:06,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:06,567 INFO L225 Difference]: With dead ends: 11850 [2024-10-12 16:19:06,567 INFO L226 Difference]: Without dead ends: 6673 [2024-10-12 16:19:06,573 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 [2024-10-12 16:19:06,573 INFO L432 NwaCegarLoop]: 275 mSDtfsCounter, 277 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 909 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:06,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 320 Invalid, 1115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 909 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-12 16:19:06,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6673 states. [2024-10-12 16:19:06,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6673 to 5174. [2024-10-12 16:19:06,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5174 states, 5173 states have (on average 1.174946839358206) internal successors, (6078), 5173 states have internal predecessors, (6078), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:06,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5174 states to 5174 states and 6078 transitions. [2024-10-12 16:19:06,630 INFO L78 Accepts]: Start accepts. Automaton has 5174 states and 6078 transitions. Word has length 323 [2024-10-12 16:19:06,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:06,631 INFO L471 AbstractCegarLoop]: Abstraction has 5174 states and 6078 transitions. [2024-10-12 16:19:06,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.0) internal successors, (234), 3 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:06,631 INFO L276 IsEmpty]: Start isEmpty. Operand 5174 states and 6078 transitions. [2024-10-12 16:19:06,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2024-10-12 16:19:06,634 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:06,634 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-12 16:19:06,635 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 16:19:06,635 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:06,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:06,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1052434725, now seen corresponding path program 1 times [2024-10-12 16:19:06,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:06,636 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1719580148] [2024-10-12 16:19:06,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:06,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:06,832 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-10-12 16:19:06,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:06,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1719580148] [2024-10-12 16:19:06,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1719580148] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:06,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:19:06,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:19:06,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090230582] [2024-10-12 16:19:06,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:06,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:19:06,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:06,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:19:06,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:19:06,835 INFO L87 Difference]: Start difference. First operand 5174 states and 6078 transitions. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:08,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:08,153 INFO L93 Difference]: Finished difference Result 12150 states and 14568 transitions. [2024-10-12 16:19:08,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:19:08,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 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 382 [2024-10-12 16:19:08,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:08,167 INFO L225 Difference]: With dead ends: 12150 [2024-10-12 16:19:08,167 INFO L226 Difference]: Without dead ends: 7276 [2024-10-12 16:19:08,171 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 [2024-10-12 16:19:08,172 INFO L432 NwaCegarLoop]: 598 mSDtfsCounter, 291 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 897 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 291 SdHoareTripleChecker+Valid, 634 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:08,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [291 Valid, 634 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 897 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-12 16:19:08,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7276 states. [2024-10-12 16:19:08,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7276 to 6379. [2024-10-12 16:19:08,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6379 states, 6378 states have (on average 1.1560050172467857) internal successors, (7373), 6378 states have internal predecessors, (7373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:08,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6379 states to 6379 states and 7373 transitions. [2024-10-12 16:19:08,275 INFO L78 Accepts]: Start accepts. Automaton has 6379 states and 7373 transitions. Word has length 382 [2024-10-12 16:19:08,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:08,276 INFO L471 AbstractCegarLoop]: Abstraction has 6379 states and 7373 transitions. [2024-10-12 16:19:08,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:08,276 INFO L276 IsEmpty]: Start isEmpty. Operand 6379 states and 7373 transitions. [2024-10-12 16:19:08,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2024-10-12 16:19:08,280 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:08,280 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-12 16:19:08,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 16:19:08,281 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:08,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:08,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1085766639, now seen corresponding path program 1 times [2024-10-12 16:19:08,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:08,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286168244] [2024-10-12 16:19:08,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:08,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:08,478 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 16:19:08,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:08,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286168244] [2024-10-12 16:19:08,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286168244] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:08,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:19:08,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:19:08,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699300870] [2024-10-12 16:19:08,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:08,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:19:08,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:08,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:19:08,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:19:08,483 INFO L87 Difference]: Start difference. First operand 6379 states and 7373 transitions. Second operand has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:09,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:09,693 INFO L93 Difference]: Finished difference Result 14562 states and 17154 transitions. [2024-10-12 16:19:09,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:19:09,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 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 388 [2024-10-12 16:19:09,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:09,702 INFO L225 Difference]: With dead ends: 14562 [2024-10-12 16:19:09,702 INFO L226 Difference]: Without dead ends: 8483 [2024-10-12 16:19:09,705 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 [2024-10-12 16:19:09,706 INFO L432 NwaCegarLoop]: 562 mSDtfsCounter, 248 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:09,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 600 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 16:19:09,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8483 states. [2024-10-12 16:19:09,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8483 to 7583. [2024-10-12 16:19:09,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7583 states, 7582 states have (on average 1.1427064099182274) internal successors, (8664), 7582 states have internal predecessors, (8664), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:09,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7583 states to 7583 states and 8664 transitions. [2024-10-12 16:19:09,766 INFO L78 Accepts]: Start accepts. Automaton has 7583 states and 8664 transitions. Word has length 388 [2024-10-12 16:19:09,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:09,766 INFO L471 AbstractCegarLoop]: Abstraction has 7583 states and 8664 transitions. [2024-10-12 16:19:09,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:09,767 INFO L276 IsEmpty]: Start isEmpty. Operand 7583 states and 8664 transitions. [2024-10-12 16:19:09,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2024-10-12 16:19:09,771 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:09,771 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:19:09,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-12 16:19:09,772 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:09,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:09,775 INFO L85 PathProgramCache]: Analyzing trace with hash 152083714, now seen corresponding path program 1 times [2024-10-12 16:19:09,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:09,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461182813] [2024-10-12 16:19:09,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:09,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:09,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:09,991 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 263 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-10-12 16:19:09,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:09,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461182813] [2024-10-12 16:19:09,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461182813] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:09,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:19:09,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:19:09,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094455252] [2024-10-12 16:19:09,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:09,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:19:09,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:09,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:19:09,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:19:09,993 INFO L87 Difference]: Start difference. First operand 7583 states and 8664 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:11,538 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-10-12 16:19:12,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:12,191 INFO L93 Difference]: Finished difference Result 16660 states and 19399 transitions. [2024-10-12 16:19:12,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:19:12,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 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 405 [2024-10-12 16:19:12,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:12,203 INFO L225 Difference]: With dead ends: 16660 [2024-10-12 16:19:12,204 INFO L226 Difference]: Without dead ends: 9377 [2024-10-12 16:19:12,210 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 [2024-10-12 16:19:12,210 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 248 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 614 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:12,211 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 614 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-10-12 16:19:12,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9377 states. [2024-10-12 16:19:12,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9377 to 9373. [2024-10-12 16:19:12,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9373 states, 9372 states have (on average 1.130281690140845) internal successors, (10593), 9372 states have internal predecessors, (10593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:12,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9373 states to 9373 states and 10593 transitions. [2024-10-12 16:19:12,321 INFO L78 Accepts]: Start accepts. Automaton has 9373 states and 10593 transitions. Word has length 405 [2024-10-12 16:19:12,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:12,321 INFO L471 AbstractCegarLoop]: Abstraction has 9373 states and 10593 transitions. [2024-10-12 16:19:12,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:12,322 INFO L276 IsEmpty]: Start isEmpty. Operand 9373 states and 10593 transitions. [2024-10-12 16:19:12,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2024-10-12 16:19:12,324 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:12,325 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-12 16:19:12,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-12 16:19:12,325 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:12,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:12,326 INFO L85 PathProgramCache]: Analyzing trace with hash 389718837, now seen corresponding path program 1 times [2024-10-12 16:19:12,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:12,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129305979] [2024-10-12 16:19:12,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:12,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:12,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:12,946 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 35 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 16:19:12,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:12,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129305979] [2024-10-12 16:19:12,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129305979] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:19:12,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152305764] [2024-10-12 16:19:12,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:12,947 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:19:12,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:19:12,952 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) [2024-10-12 16:19:12,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 16:19:13,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:13,163 INFO L255 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 16:19:13,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:19:13,372 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-10-12 16:19:13,372 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:19:13,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152305764] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:13,373 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:19:13,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-12 16:19:13,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673965875] [2024-10-12 16:19:13,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:13,374 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:19:13,374 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:13,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:19:13,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 16:19:13,376 INFO L87 Difference]: Start difference. First operand 9373 states and 10593 transitions. Second operand has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:15,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:15,186 INFO L93 Difference]: Finished difference Result 21503 states and 24724 transitions. [2024-10-12 16:19:15,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:19:15,187 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 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 413 [2024-10-12 16:19:15,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:15,202 INFO L225 Difference]: With dead ends: 21503 [2024-10-12 16:19:15,202 INFO L226 Difference]: Without dead ends: 12430 [2024-10-12 16:19:15,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 412 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 16:19:15,209 INFO L432 NwaCegarLoop]: 570 mSDtfsCounter, 378 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 1117 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 378 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 1180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:15,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [378 Valid, 633 Invalid, 1180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1117 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-12 16:19:15,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12430 states. [2024-10-12 16:19:15,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12430 to 12424. [2024-10-12 16:19:15,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12424 states, 12423 states have (on average 1.1454560090155357) internal successors, (14230), 12423 states have internal predecessors, (14230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:15,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12424 states to 12424 states and 14230 transitions. [2024-10-12 16:19:15,303 INFO L78 Accepts]: Start accepts. Automaton has 12424 states and 14230 transitions. Word has length 413 [2024-10-12 16:19:15,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:15,304 INFO L471 AbstractCegarLoop]: Abstraction has 12424 states and 14230 transitions. [2024-10-12 16:19:15,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.66666666666667) internal successors, (308), 3 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:15,304 INFO L276 IsEmpty]: Start isEmpty. Operand 12424 states and 14230 transitions. [2024-10-12 16:19:15,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 486 [2024-10-12 16:19:15,307 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:15,308 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:19:15,322 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-12 16:19:15,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-12 16:19:15,509 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:15,509 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:15,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1300741551, now seen corresponding path program 1 times [2024-10-12 16:19:15,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:15,510 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260619044] [2024-10-12 16:19:15,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:15,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:15,979 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-10-12 16:19:15,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:15,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260619044] [2024-10-12 16:19:15,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260619044] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:15,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:19:15,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:19:15,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228191709] [2024-10-12 16:19:15,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:15,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:19:15,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:15,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:19:15,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:19:15,981 INFO L87 Difference]: Start difference. First operand 12424 states and 14230 transitions. Second operand has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:17,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:17,378 INFO L93 Difference]: Finished difference Result 32321 states and 37116 transitions. [2024-10-12 16:19:17,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:19:17,379 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 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 485 [2024-10-12 16:19:17,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:17,403 INFO L225 Difference]: With dead ends: 32321 [2024-10-12 16:19:17,403 INFO L226 Difference]: Without dead ends: 20197 [2024-10-12 16:19:17,416 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 [2024-10-12 16:19:17,416 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 307 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 167 SdHoareTripleChecker+Invalid, 1178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:17,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 167 Invalid, 1178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-12 16:19:17,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20197 states. [2024-10-12 16:19:17,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20197 to 17207. [2024-10-12 16:19:17,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17207 states, 17206 states have (on average 1.144426362896664) internal successors, (19691), 17206 states have internal predecessors, (19691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:17,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17207 states to 17207 states and 19691 transitions. [2024-10-12 16:19:17,574 INFO L78 Accepts]: Start accepts. Automaton has 17207 states and 19691 transitions. Word has length 485 [2024-10-12 16:19:17,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:17,575 INFO L471 AbstractCegarLoop]: Abstraction has 17207 states and 19691 transitions. [2024-10-12 16:19:17,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:17,575 INFO L276 IsEmpty]: Start isEmpty. Operand 17207 states and 19691 transitions. [2024-10-12 16:19:17,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2024-10-12 16:19:17,579 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:17,581 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, 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, 2, 2, 2, 2, 2, 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] [2024-10-12 16:19:17,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 16:19:17,581 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:17,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:17,582 INFO L85 PathProgramCache]: Analyzing trace with hash 727894333, now seen corresponding path program 1 times [2024-10-12 16:19:17,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:17,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329220530] [2024-10-12 16:19:17,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:17,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:17,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:18,080 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 479 proven. 39 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-10-12 16:19:18,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:18,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329220530] [2024-10-12 16:19:18,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329220530] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:19:18,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106782284] [2024-10-12 16:19:18,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:18,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:19:18,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:19:18,085 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) [2024-10-12 16:19:18,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 16:19:18,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:18,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-12 16:19:18,226 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:19:18,283 INFO L134 CoverageAnalysis]: Checked inductivity of 663 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2024-10-12 16:19:18,283 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:19:18,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106782284] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:18,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:19:18,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-12 16:19:18,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96693640] [2024-10-12 16:19:18,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:18,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:19:18,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:18,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:19:18,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 16:19:18,285 INFO L87 Difference]: Start difference. First operand 17207 states and 19691 transitions. Second operand has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:19,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:19,508 INFO L93 Difference]: Finished difference Result 37103 states and 42705 transitions. [2024-10-12 16:19:19,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:19:19,509 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 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 520 [2024-10-12 16:19:19,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:19,531 INFO L225 Difference]: With dead ends: 37103 [2024-10-12 16:19:19,531 INFO L226 Difference]: Without dead ends: 20196 [2024-10-12 16:19:19,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 523 GetRequests, 519 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-12 16:19:19,544 INFO L432 NwaCegarLoop]: 424 mSDtfsCounter, 380 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 966 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 1093 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 966 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:19,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 442 Invalid, 1093 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 966 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 16:19:19,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20196 states. [2024-10-12 16:19:19,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20196 to 15052. [2024-10-12 16:19:19,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15052 states, 15051 states have (on average 1.1298917015480698) internal successors, (17006), 15051 states have internal predecessors, (17006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:19,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15052 states to 15052 states and 17006 transitions. [2024-10-12 16:19:19,813 INFO L78 Accepts]: Start accepts. Automaton has 15052 states and 17006 transitions. Word has length 520 [2024-10-12 16:19:19,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:19,814 INFO L471 AbstractCegarLoop]: Abstraction has 15052 states and 17006 transitions. [2024-10-12 16:19:19,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 79.33333333333333) internal successors, (238), 3 states have internal predecessors, (238), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:19,814 INFO L276 IsEmpty]: Start isEmpty. Operand 15052 states and 17006 transitions. [2024-10-12 16:19:19,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 525 [2024-10-12 16:19:19,818 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:19,818 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, 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, 2, 2, 2, 2, 2, 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] [2024-10-12 16:19:19,831 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-12 16:19:20,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-12 16:19:20,020 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:20,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:20,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1612103481, now seen corresponding path program 1 times [2024-10-12 16:19:20,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:20,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206028959] [2024-10-12 16:19:20,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:20,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:20,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:20,325 INFO L134 CoverageAnalysis]: Checked inductivity of 675 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-10-12 16:19:20,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:20,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206028959] [2024-10-12 16:19:20,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206028959] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:20,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:19:20,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:19:20,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592074046] [2024-10-12 16:19:20,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:20,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:19:20,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:20,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:19:20,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:19:20,327 INFO L87 Difference]: Start difference. First operand 15052 states and 17006 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:21,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:21,675 INFO L93 Difference]: Finished difference Result 35798 states and 40819 transitions. [2024-10-12 16:19:21,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:19:21,676 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 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 524 [2024-10-12 16:19:21,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:21,696 INFO L225 Difference]: With dead ends: 35798 [2024-10-12 16:19:21,697 INFO L226 Difference]: Without dead ends: 21046 [2024-10-12 16:19:21,709 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 [2024-10-12 16:19:21,709 INFO L432 NwaCegarLoop]: 584 mSDtfsCounter, 246 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1039 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 1209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1039 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:21,710 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 616 Invalid, 1209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1039 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-12 16:19:21,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21046 states. [2024-10-12 16:19:21,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21046 to 20138. [2024-10-12 16:19:21,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20138 states, 20137 states have (on average 1.1227094403337141) internal successors, (22608), 20137 states have internal predecessors, (22608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:21,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20138 states to 20138 states and 22608 transitions. [2024-10-12 16:19:21,966 INFO L78 Accepts]: Start accepts. Automaton has 20138 states and 22608 transitions. Word has length 524 [2024-10-12 16:19:21,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:21,967 INFO L471 AbstractCegarLoop]: Abstraction has 20138 states and 22608 transitions. [2024-10-12 16:19:21,967 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 3 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:21,968 INFO L276 IsEmpty]: Start isEmpty. Operand 20138 states and 22608 transitions. [2024-10-12 16:19:21,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2024-10-12 16:19:21,977 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:21,977 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, 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, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:19:21,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-12 16:19:21,977 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:21,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:21,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1164441923, now seen corresponding path program 1 times [2024-10-12 16:19:21,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:21,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062413000] [2024-10-12 16:19:21,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:21,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:22,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:22,411 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 556 proven. 39 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-10-12 16:19:22,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:22,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062413000] [2024-10-12 16:19:22,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062413000] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:19:22,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067372936] [2024-10-12 16:19:22,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:22,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:19:22,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:19:22,418 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) [2024-10-12 16:19:22,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-12 16:19:22,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:22,621 INFO L255 TraceCheckSpWp]: Trace formula consists of 709 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 16:19:22,626 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:19:23,253 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 595 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-10-12 16:19:23,254 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:19:23,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067372936] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:23,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:19:23,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-10-12 16:19:23,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262242467] [2024-10-12 16:19:23,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:23,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 16:19:23,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:23,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 16:19:23,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-12 16:19:23,256 INFO L87 Difference]: Start difference. First operand 20138 states and 22608 transitions. Second operand has 4 states, 4 states have (on average 113.5) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:24,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:24,769 INFO L93 Difference]: Finished difference Result 42072 states and 47163 transitions. [2024-10-12 16:19:24,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:19:24,770 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 113.5) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 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 579 [2024-10-12 16:19:24,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:24,792 INFO L225 Difference]: With dead ends: 42072 [2024-10-12 16:19:24,792 INFO L226 Difference]: Without dead ends: 21636 [2024-10-12 16:19:24,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 582 GetRequests, 577 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-12 16:19:24,806 INFO L432 NwaCegarLoop]: 316 mSDtfsCounter, 316 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 1752 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 316 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 1844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:24,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [316 Valid, 386 Invalid, 1844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1752 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-10-12 16:19:24,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21636 states. [2024-10-12 16:19:24,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21636 to 21035. [2024-10-12 16:19:24,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21035 states, 21034 states have (on average 1.1182371398687838) internal successors, (23521), 21034 states have internal predecessors, (23521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:24,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21035 states to 21035 states and 23521 transitions. [2024-10-12 16:19:24,990 INFO L78 Accepts]: Start accepts. Automaton has 21035 states and 23521 transitions. Word has length 579 [2024-10-12 16:19:24,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:24,990 INFO L471 AbstractCegarLoop]: Abstraction has 21035 states and 23521 transitions. [2024-10-12 16:19:24,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 113.5) internal successors, (454), 3 states have internal predecessors, (454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:24,991 INFO L276 IsEmpty]: Start isEmpty. Operand 21035 states and 23521 transitions. [2024-10-12 16:19:24,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2024-10-12 16:19:24,995 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:24,996 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-12 16:19:25,014 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-12 16:19:25,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:19:25,197 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:25,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:25,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1392545376, now seen corresponding path program 1 times [2024-10-12 16:19:25,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:25,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827368717] [2024-10-12 16:19:25,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:25,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:25,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:25,530 INFO L134 CoverageAnalysis]: Checked inductivity of 501 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 397 trivial. 0 not checked. [2024-10-12 16:19:25,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:25,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827368717] [2024-10-12 16:19:25,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827368717] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:25,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:19:25,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:19:25,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615927676] [2024-10-12 16:19:25,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:25,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:19:25,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:25,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:19:25,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:19:25,533 INFO L87 Difference]: Start difference. First operand 21035 states and 23521 transitions. Second operand has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:26,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:26,942 INFO L93 Difference]: Finished difference Result 49556 states and 55350 transitions. [2024-10-12 16:19:26,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:19:26,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 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 598 [2024-10-12 16:19:26,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:26,973 INFO L225 Difference]: With dead ends: 49556 [2024-10-12 16:19:26,973 INFO L226 Difference]: Without dead ends: 24336 [2024-10-12 16:19:26,989 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 [2024-10-12 16:19:26,990 INFO L432 NwaCegarLoop]: 623 mSDtfsCounter, 303 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 893 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 303 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 1131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 893 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:26,990 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [303 Valid, 666 Invalid, 1131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 893 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-12 16:19:27,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24336 states. [2024-10-12 16:19:27,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24336 to 23439. [2024-10-12 16:19:27,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23439 states, 23438 states have (on average 1.0894700913047188) internal successors, (25535), 23438 states have internal predecessors, (25535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:27,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23439 states to 23439 states and 25535 transitions. [2024-10-12 16:19:27,179 INFO L78 Accepts]: Start accepts. Automaton has 23439 states and 25535 transitions. Word has length 598 [2024-10-12 16:19:27,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:27,179 INFO L471 AbstractCegarLoop]: Abstraction has 23439 states and 25535 transitions. [2024-10-12 16:19:27,180 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.0) internal successors, (309), 3 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:27,180 INFO L276 IsEmpty]: Start isEmpty. Operand 23439 states and 25535 transitions. [2024-10-12 16:19:27,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 620 [2024-10-12 16:19:27,187 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:27,187 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, 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, 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] [2024-10-12 16:19:27,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-12 16:19:27,188 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:27,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:27,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1661076666, now seen corresponding path program 1 times [2024-10-12 16:19:27,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:27,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123805230] [2024-10-12 16:19:27,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:27,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:27,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:27,479 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 349 proven. 0 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2024-10-12 16:19:27,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:27,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123805230] [2024-10-12 16:19:27,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123805230] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:27,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:19:27,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:19:27,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218807822] [2024-10-12 16:19:27,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:27,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:19:27,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:27,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:19:27,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:19:27,482 INFO L87 Difference]: Start difference. First operand 23439 states and 25535 transitions. Second operand has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:28,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:28,649 INFO L93 Difference]: Finished difference Result 46875 states and 51067 transitions. [2024-10-12 16:19:28,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:19:28,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 619 [2024-10-12 16:19:28,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:28,670 INFO L225 Difference]: With dead ends: 46875 [2024-10-12 16:19:28,671 INFO L226 Difference]: Without dead ends: 23437 [2024-10-12 16:19:28,684 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 [2024-10-12 16:19:28,684 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 464 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:28,685 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 69 Invalid, 951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-12 16:19:28,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23437 states. [2024-10-12 16:19:28,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23437 to 23437. [2024-10-12 16:19:28,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23437 states, 23436 states have (on average 1.0893923877794847) internal successors, (25531), 23436 states have internal predecessors, (25531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:28,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23437 states to 23437 states and 25531 transitions. [2024-10-12 16:19:28,848 INFO L78 Accepts]: Start accepts. Automaton has 23437 states and 25531 transitions. Word has length 619 [2024-10-12 16:19:28,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:28,849 INFO L471 AbstractCegarLoop]: Abstraction has 23437 states and 25531 transitions. [2024-10-12 16:19:28,849 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 119.66666666666667) internal successors, (359), 3 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:28,849 INFO L276 IsEmpty]: Start isEmpty. Operand 23437 states and 25531 transitions. [2024-10-12 16:19:28,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2024-10-12 16:19:28,854 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:28,854 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, 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, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:19:28,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-12 16:19:28,854 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:28,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:28,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1242530760, now seen corresponding path program 1 times [2024-10-12 16:19:28,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:28,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306628030] [2024-10-12 16:19:28,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:28,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:28,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:29,125 INFO L134 CoverageAnalysis]: Checked inductivity of 739 backedges. 405 proven. 0 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-10-12 16:19:29,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:29,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306628030] [2024-10-12 16:19:29,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306628030] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:29,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:19:29,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 16:19:29,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863692002] [2024-10-12 16:19:29,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:29,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 16:19:29,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:29,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 16:19:29,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:19:29,126 INFO L87 Difference]: Start difference. First operand 23437 states and 25531 transitions. Second operand has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:31,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:31,113 INFO L93 Difference]: Finished difference Result 57932 states and 62856 transitions. [2024-10-12 16:19:31,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:19:31,114 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 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 626 [2024-10-12 16:19:31,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:31,141 INFO L225 Difference]: With dead ends: 57932 [2024-10-12 16:19:31,142 INFO L226 Difference]: Without dead ends: 28217 [2024-10-12 16:19:31,160 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 [2024-10-12 16:19:31,161 INFO L432 NwaCegarLoop]: 409 mSDtfsCounter, 647 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1564 mSolverCounterSat, 344 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 647 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 1908 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 344 IncrementalHoareTripleChecker+Valid, 1564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:31,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [647 Valid, 450 Invalid, 1908 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [344 Valid, 1564 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-10-12 16:19:31,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28217 states. [2024-10-12 16:19:31,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28217 to 23131. [2024-10-12 16:19:31,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23131 states, 23130 states have (on average 1.0514483354950281) internal successors, (24320), 23130 states have internal predecessors, (24320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:31,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23131 states to 23131 states and 24320 transitions. [2024-10-12 16:19:31,363 INFO L78 Accepts]: Start accepts. Automaton has 23131 states and 24320 transitions. Word has length 626 [2024-10-12 16:19:31,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:31,364 INFO L471 AbstractCegarLoop]: Abstraction has 23131 states and 24320 transitions. [2024-10-12 16:19:31,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 100.0) internal successors, (400), 4 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:31,364 INFO L276 IsEmpty]: Start isEmpty. Operand 23131 states and 24320 transitions. [2024-10-12 16:19:31,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 661 [2024-10-12 16:19:31,368 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:31,369 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, 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, 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, 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] [2024-10-12 16:19:31,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-12 16:19:31,369 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:31,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:31,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1172845054, now seen corresponding path program 1 times [2024-10-12 16:19:31,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:31,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728700533] [2024-10-12 16:19:31,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:31,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:31,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:31,673 INFO L134 CoverageAnalysis]: Checked inductivity of 824 backedges. 683 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-10-12 16:19:31,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:31,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728700533] [2024-10-12 16:19:31,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728700533] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:31,674 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:19:31,674 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:19:31,674 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678865168] [2024-10-12 16:19:31,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:31,674 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:19:31,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:31,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:19:31,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:19:31,675 INFO L87 Difference]: Start difference. First operand 23131 states and 24320 transitions. Second operand has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:32,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:32,631 INFO L93 Difference]: Finished difference Result 51359 states and 53957 transitions. [2024-10-12 16:19:32,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:19:32,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 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 660 [2024-10-12 16:19:32,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:32,653 INFO L225 Difference]: With dead ends: 51359 [2024-10-12 16:19:32,654 INFO L226 Difference]: Without dead ends: 28229 [2024-10-12 16:19:32,667 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 [2024-10-12 16:19:32,667 INFO L432 NwaCegarLoop]: 468 mSDtfsCounter, 226 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 499 SdHoareTripleChecker+Invalid, 895 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:32,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 499 Invalid, 895 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-12 16:19:32,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28229 states. [2024-10-12 16:19:32,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28229 to 22533. [2024-10-12 16:19:32,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22533 states, 22532 states have (on average 1.0522812000710102) internal successors, (23710), 22532 states have internal predecessors, (23710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:32,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22533 states to 22533 states and 23710 transitions. [2024-10-12 16:19:32,845 INFO L78 Accepts]: Start accepts. Automaton has 22533 states and 23710 transitions. Word has length 660 [2024-10-12 16:19:32,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:32,845 INFO L471 AbstractCegarLoop]: Abstraction has 22533 states and 23710 transitions. [2024-10-12 16:19:32,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.66666666666666) internal successors, (521), 3 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:32,845 INFO L276 IsEmpty]: Start isEmpty. Operand 22533 states and 23710 transitions. [2024-10-12 16:19:32,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2024-10-12 16:19:32,849 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:32,850 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-12 16:19:32,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-12 16:19:32,850 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:32,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:32,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1041792562, now seen corresponding path program 1 times [2024-10-12 16:19:32,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:32,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822551811] [2024-10-12 16:19:32,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:32,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:33,217 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 418 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2024-10-12 16:19:33,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:33,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822551811] [2024-10-12 16:19:33,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822551811] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:33,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:19:33,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:19:33,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711860384] [2024-10-12 16:19:33,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:33,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:19:33,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:33,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:19:33,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:19:33,220 INFO L87 Difference]: Start difference. First operand 22533 states and 23710 transitions. Second operand has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:34,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:34,077 INFO L93 Difference]: Finished difference Result 47455 states and 49939 transitions. [2024-10-12 16:19:34,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:19:34,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 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 673 [2024-10-12 16:19:34,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:34,098 INFO L225 Difference]: With dead ends: 47455 [2024-10-12 16:19:34,099 INFO L226 Difference]: Without dead ends: 24624 [2024-10-12 16:19:34,112 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 [2024-10-12 16:19:34,113 INFO L432 NwaCegarLoop]: 516 mSDtfsCounter, 218 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:34,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 553 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 16:19:34,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24624 states. [2024-10-12 16:19:34,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24624 to 21622. [2024-10-12 16:19:34,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21622 states, 21621 states have (on average 1.0507377087091254) internal successors, (22718), 21621 states have internal predecessors, (22718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:34,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21622 states to 21622 states and 22718 transitions. [2024-10-12 16:19:34,400 INFO L78 Accepts]: Start accepts. Automaton has 21622 states and 22718 transitions. Word has length 673 [2024-10-12 16:19:34,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:34,401 INFO L471 AbstractCegarLoop]: Abstraction has 21622 states and 22718 transitions. [2024-10-12 16:19:34,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:34,401 INFO L276 IsEmpty]: Start isEmpty. Operand 21622 states and 22718 transitions. [2024-10-12 16:19:34,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2024-10-12 16:19:34,405 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:34,405 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-12 16:19:34,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-12 16:19:34,406 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:34,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:34,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1919478543, now seen corresponding path program 1 times [2024-10-12 16:19:34,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:34,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527828624] [2024-10-12 16:19:34,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:34,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:34,726 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 287 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-10-12 16:19:34,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:34,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527828624] [2024-10-12 16:19:34,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527828624] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:34,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:19:34,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:19:34,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547196668] [2024-10-12 16:19:34,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:34,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:19:34,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:34,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:19:34,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:19:34,734 INFO L87 Difference]: Start difference. First operand 21622 states and 22718 transitions. Second operand has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:35,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:35,700 INFO L93 Difference]: Finished difference Result 47448 states and 49784 transitions. [2024-10-12 16:19:35,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:19:35,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 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 673 [2024-10-12 16:19:35,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:35,729 INFO L225 Difference]: With dead ends: 47448 [2024-10-12 16:19:35,730 INFO L226 Difference]: Without dead ends: 25827 [2024-10-12 16:19:35,746 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 [2024-10-12 16:19:35,747 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 260 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 178 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 1017 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 178 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:35,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 139 Invalid, 1017 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [178 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-12 16:19:35,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25827 states. [2024-10-12 16:19:36,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25827 to 22519. [2024-10-12 16:19:36,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22519 states, 22518 states have (on average 1.0489386268762768) internal successors, (23620), 22518 states have internal predecessors, (23620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:36,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22519 states to 22519 states and 23620 transitions. [2024-10-12 16:19:36,171 INFO L78 Accepts]: Start accepts. Automaton has 22519 states and 23620 transitions. Word has length 673 [2024-10-12 16:19:36,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:36,171 INFO L471 AbstractCegarLoop]: Abstraction has 22519 states and 23620 transitions. [2024-10-12 16:19:36,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:36,171 INFO L276 IsEmpty]: Start isEmpty. Operand 22519 states and 23620 transitions. [2024-10-12 16:19:36,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 701 [2024-10-12 16:19:36,176 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:36,176 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:19:36,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-12 16:19:36,177 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:36,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:36,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1810320260, now seen corresponding path program 1 times [2024-10-12 16:19:36,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:36,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272014249] [2024-10-12 16:19:36,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:36,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:36,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:36,523 INFO L134 CoverageAnalysis]: Checked inductivity of 811 backedges. 429 proven. 0 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2024-10-12 16:19:36,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:36,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272014249] [2024-10-12 16:19:36,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272014249] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:36,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:19:36,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:19:36,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682108299] [2024-10-12 16:19:36,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:36,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:19:36,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:36,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:19:36,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:19:36,525 INFO L87 Difference]: Start difference. First operand 22519 states and 23620 transitions. Second operand has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:37,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:37,486 INFO L93 Difference]: Finished difference Result 48041 states and 50336 transitions. [2024-10-12 16:19:37,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:19:37,487 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 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 700 [2024-10-12 16:19:37,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:37,511 INFO L225 Difference]: With dead ends: 48041 [2024-10-12 16:19:37,512 INFO L226 Difference]: Without dead ends: 25523 [2024-10-12 16:19:37,526 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 [2024-10-12 16:19:37,526 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 351 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 166 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 166 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:37,526 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 130 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [166 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-12 16:19:37,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25523 states. [2024-10-12 16:19:37,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25523 to 21620. [2024-10-12 16:19:37,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21620 states, 21619 states have (on average 1.0489384337850964) internal successors, (22677), 21619 states have internal predecessors, (22677), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:37,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21620 states to 21620 states and 22677 transitions. [2024-10-12 16:19:37,811 INFO L78 Accepts]: Start accepts. Automaton has 21620 states and 22677 transitions. Word has length 700 [2024-10-12 16:19:37,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:37,812 INFO L471 AbstractCegarLoop]: Abstraction has 21620 states and 22677 transitions. [2024-10-12 16:19:37,812 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:37,812 INFO L276 IsEmpty]: Start isEmpty. Operand 21620 states and 22677 transitions. [2024-10-12 16:19:37,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 722 [2024-10-12 16:19:37,820 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:37,821 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-12 16:19:37,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-12 16:19:37,821 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:37,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:37,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1621151834, now seen corresponding path program 1 times [2024-10-12 16:19:37,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:37,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743819539] [2024-10-12 16:19:37,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:37,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:37,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:38,512 INFO L134 CoverageAnalysis]: Checked inductivity of 860 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 721 trivial. 0 not checked. [2024-10-12 16:19:38,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:38,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743819539] [2024-10-12 16:19:38,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743819539] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:38,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:19:38,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:19:38,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128547978] [2024-10-12 16:19:38,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:38,516 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:19:38,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:38,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:19:38,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:19:38,517 INFO L87 Difference]: Start difference. First operand 21620 states and 22677 transitions. Second operand has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:39,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:39,434 INFO L93 Difference]: Finished difference Result 45331 states and 47552 transitions. [2024-10-12 16:19:39,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:19:39,434 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 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 721 [2024-10-12 16:19:39,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:39,456 INFO L225 Difference]: With dead ends: 45331 [2024-10-12 16:19:39,456 INFO L226 Difference]: Without dead ends: 23413 [2024-10-12 16:19:39,470 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 [2024-10-12 16:19:39,471 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 292 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 931 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:39,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 194 Invalid, 931 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 16:19:39,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23413 states. [2024-10-12 16:19:39,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23413 to 21917. [2024-10-12 16:19:39,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21917 states, 21916 states have (on average 1.0452181054937033) internal successors, (22907), 21916 states have internal predecessors, (22907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:39,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21917 states to 21917 states and 22907 transitions. [2024-10-12 16:19:39,639 INFO L78 Accepts]: Start accepts. Automaton has 21917 states and 22907 transitions. Word has length 721 [2024-10-12 16:19:39,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:39,639 INFO L471 AbstractCegarLoop]: Abstraction has 21917 states and 22907 transitions. [2024-10-12 16:19:39,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.0) internal successors, (312), 3 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:39,639 INFO L276 IsEmpty]: Start isEmpty. Operand 21917 states and 22907 transitions. [2024-10-12 16:19:39,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 724 [2024-10-12 16:19:39,644 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:39,645 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, 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, 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, 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] [2024-10-12 16:19:39,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-12 16:19:39,645 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:39,645 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:39,646 INFO L85 PathProgramCache]: Analyzing trace with hash -777460843, now seen corresponding path program 1 times [2024-10-12 16:19:39,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:39,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711643898] [2024-10-12 16:19:39,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:39,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:39,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:40,242 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 518 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2024-10-12 16:19:40,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:40,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711643898] [2024-10-12 16:19:40,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711643898] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:40,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:19:40,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 16:19:40,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078083294] [2024-10-12 16:19:40,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:40,244 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 16:19:40,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:40,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 16:19:40,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:19:40,245 INFO L87 Difference]: Start difference. First operand 21917 states and 22907 transitions. Second operand has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:41,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:41,681 INFO L93 Difference]: Finished difference Result 50728 states and 52943 transitions. [2024-10-12 16:19:41,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:19:41,682 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 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 723 [2024-10-12 16:19:41,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:41,708 INFO L225 Difference]: With dead ends: 50728 [2024-10-12 16:19:41,709 INFO L226 Difference]: Without dead ends: 28812 [2024-10-12 16:19:41,723 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 [2024-10-12 16:19:41,724 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 514 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 189 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 514 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 1819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 189 IncrementalHoareTripleChecker+Valid, 1630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:41,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [514 Valid, 154 Invalid, 1819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [189 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-10-12 16:19:41,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28812 states. [2024-10-12 16:19:41,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28812 to 26716. [2024-10-12 16:19:41,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26716 states, 26715 states have (on average 1.0426352236571215) internal successors, (27854), 26715 states have internal predecessors, (27854), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:41,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26716 states to 26716 states and 27854 transitions. [2024-10-12 16:19:41,960 INFO L78 Accepts]: Start accepts. Automaton has 26716 states and 27854 transitions. Word has length 723 [2024-10-12 16:19:41,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:41,961 INFO L471 AbstractCegarLoop]: Abstraction has 26716 states and 27854 transitions. [2024-10-12 16:19:41,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 115.25) internal successors, (461), 4 states have internal predecessors, (461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:41,961 INFO L276 IsEmpty]: Start isEmpty. Operand 26716 states and 27854 transitions. [2024-10-12 16:19:41,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2024-10-12 16:19:41,969 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:41,970 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, 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, 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, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-12 16:19:41,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-12 16:19:41,971 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:41,971 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:41,971 INFO L85 PathProgramCache]: Analyzing trace with hash -657246870, now seen corresponding path program 1 times [2024-10-12 16:19:41,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:41,972 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32572596] [2024-10-12 16:19:41,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:41,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:42,330 INFO L134 CoverageAnalysis]: Checked inductivity of 986 backedges. 488 proven. 0 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2024-10-12 16:19:42,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:42,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32572596] [2024-10-12 16:19:42,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32572596] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:42,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:19:42,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:19:42,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550964848] [2024-10-12 16:19:42,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:42,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:19:42,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:42,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:19:42,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:19:42,332 INFO L87 Difference]: Start difference. First operand 26716 states and 27854 transitions. Second operand has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:43,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:43,036 INFO L93 Difference]: Finished difference Result 42915 states and 44600 transitions. [2024-10-12 16:19:43,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:19:43,036 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 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 805 [2024-10-12 16:19:43,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:43,053 INFO L225 Difference]: With dead ends: 42915 [2024-10-12 16:19:43,053 INFO L226 Difference]: Without dead ends: 16200 [2024-10-12 16:19:43,066 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 [2024-10-12 16:19:43,067 INFO L432 NwaCegarLoop]: 389 mSDtfsCounter, 314 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 698 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 755 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 698 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:43,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 408 Invalid, 755 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 698 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 16:19:43,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16200 states. [2024-10-12 16:19:43,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16200 to 13804. [2024-10-12 16:19:43,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13804 states, 13803 states have (on average 1.0294138955299572) internal successors, (14209), 13803 states have internal predecessors, (14209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:43,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13804 states to 13804 states and 14209 transitions. [2024-10-12 16:19:43,196 INFO L78 Accepts]: Start accepts. Automaton has 13804 states and 14209 transitions. Word has length 805 [2024-10-12 16:19:43,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:43,196 INFO L471 AbstractCegarLoop]: Abstraction has 13804 states and 14209 transitions. [2024-10-12 16:19:43,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.66666666666666) internal successors, (416), 3 states have internal predecessors, (416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:43,196 INFO L276 IsEmpty]: Start isEmpty. Operand 13804 states and 14209 transitions. [2024-10-12 16:19:43,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 840 [2024-10-12 16:19:43,204 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:43,205 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, 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, 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:19:43,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-12 16:19:43,205 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:43,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:43,206 INFO L85 PathProgramCache]: Analyzing trace with hash -792487056, now seen corresponding path program 1 times [2024-10-12 16:19:43,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:43,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845933024] [2024-10-12 16:19:43,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:43,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:43,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:43,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 1004 trivial. 0 not checked. [2024-10-12 16:19:43,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:43,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845933024] [2024-10-12 16:19:43,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845933024] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:43,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:19:43,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:19:43,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1119855642] [2024-10-12 16:19:43,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:43,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:19:43,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:43,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:19:43,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:19:43,655 INFO L87 Difference]: Start difference. First operand 13804 states and 14209 transitions. Second operand has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:44,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:44,355 INFO L93 Difference]: Finished difference Result 33008 states and 34003 transitions. [2024-10-12 16:19:44,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:19:44,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 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 839 [2024-10-12 16:19:44,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:44,372 INFO L225 Difference]: With dead ends: 33008 [2024-10-12 16:19:44,373 INFO L226 Difference]: Without dead ends: 18906 [2024-10-12 16:19:44,381 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 [2024-10-12 16:19:44,381 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 289 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:44,382 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 407 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 16:19:44,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18906 states. [2024-10-12 16:19:44,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18906 to 17103. [2024-10-12 16:19:44,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17103 states, 17102 states have (on average 1.0302303824114138) internal successors, (17619), 17102 states have internal predecessors, (17619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:44,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17103 states to 17103 states and 17619 transitions. [2024-10-12 16:19:44,521 INFO L78 Accepts]: Start accepts. Automaton has 17103 states and 17619 transitions. Word has length 839 [2024-10-12 16:19:44,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:44,522 INFO L471 AbstractCegarLoop]: Abstraction has 17103 states and 17619 transitions. [2024-10-12 16:19:44,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 103.33333333333333) internal successors, (310), 3 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:44,522 INFO L276 IsEmpty]: Start isEmpty. Operand 17103 states and 17619 transitions. [2024-10-12 16:19:44,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 888 [2024-10-12 16:19:44,531 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:44,531 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:19:44,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-12 16:19:44,532 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:44,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:44,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1598740290, now seen corresponding path program 1 times [2024-10-12 16:19:44,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:44,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830930687] [2024-10-12 16:19:44,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:44,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:44,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:44,947 INFO L134 CoverageAnalysis]: Checked inductivity of 1468 backedges. 717 proven. 0 refuted. 0 times theorem prover too weak. 751 trivial. 0 not checked. [2024-10-12 16:19:44,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:44,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830930687] [2024-10-12 16:19:44,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830930687] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:44,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:19:44,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 16:19:44,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152555492] [2024-10-12 16:19:44,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:44,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 16:19:44,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:44,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 16:19:44,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 16:19:44,950 INFO L87 Difference]: Start difference. First operand 17103 states and 17619 transitions. Second operand has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:45,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:45,644 INFO L93 Difference]: Finished difference Result 32701 states and 33681 transitions. [2024-10-12 16:19:45,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 16:19:45,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 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 887 [2024-10-12 16:19:45,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:45,658 INFO L225 Difference]: With dead ends: 32701 [2024-10-12 16:19:45,658 INFO L226 Difference]: Without dead ends: 15300 [2024-10-12 16:19:45,668 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 [2024-10-12 16:19:45,668 INFO L432 NwaCegarLoop]: 393 mSDtfsCounter, 124 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 408 SdHoareTripleChecker+Invalid, 752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:45,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 408 Invalid, 752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-12 16:19:45,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15300 states. [2024-10-12 16:19:45,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15300 to 13799. [2024-10-12 16:19:45,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13799 states, 13798 states have (on average 1.0187708363530947) internal successors, (14057), 13798 states have internal predecessors, (14057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:45,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13799 states to 13799 states and 14057 transitions. [2024-10-12 16:19:45,779 INFO L78 Accepts]: Start accepts. Automaton has 13799 states and 14057 transitions. Word has length 887 [2024-10-12 16:19:45,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:45,780 INFO L471 AbstractCegarLoop]: Abstraction has 13799 states and 14057 transitions. [2024-10-12 16:19:45,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:45,780 INFO L276 IsEmpty]: Start isEmpty. Operand 13799 states and 14057 transitions. [2024-10-12 16:19:45,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 947 [2024-10-12 16:19:45,790 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:45,790 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, 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-12 16:19:45,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-12 16:19:45,791 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:45,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:45,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1407327433, now seen corresponding path program 1 times [2024-10-12 16:19:45,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:45,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984635557] [2024-10-12 16:19:45,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:45,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:46,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1549 backedges. 947 proven. 0 refuted. 0 times theorem prover too weak. 602 trivial. 0 not checked. [2024-10-12 16:19:46,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:46,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984635557] [2024-10-12 16:19:46,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984635557] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:46,311 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 16:19:46,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-12 16:19:46,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087319181] [2024-10-12 16:19:46,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:46,312 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 16:19:46,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:46,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 16:19:46,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-12 16:19:46,313 INFO L87 Difference]: Start difference. First operand 13799 states and 14057 transitions. Second operand has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:47,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:47,397 INFO L93 Difference]: Finished difference Result 17695 states and 18030 transitions. [2024-10-12 16:19:47,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 16:19:47,398 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 0 states have call successors, (0), 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 946 [2024-10-12 16:19:47,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:47,413 INFO L225 Difference]: With dead ends: 17695 [2024-10-12 16:19:47,413 INFO L226 Difference]: Without dead ends: 17693 [2024-10-12 16:19:47,418 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 [2024-10-12 16:19:47,418 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 470 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1387 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 470 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 1468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:47,418 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [470 Valid, 59 Invalid, 1468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1387 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-12 16:19:47,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17693 states. [2024-10-12 16:19:47,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17693 to 11103. [2024-10-12 16:19:47,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11103 states, 11102 states have (on average 1.0183750675553955) internal successors, (11306), 11102 states have internal predecessors, (11306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:47,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11103 states to 11103 states and 11306 transitions. [2024-10-12 16:19:47,573 INFO L78 Accepts]: Start accepts. Automaton has 11103 states and 11306 transitions. Word has length 946 [2024-10-12 16:19:47,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:47,574 INFO L471 AbstractCegarLoop]: Abstraction has 11103 states and 11306 transitions. [2024-10-12 16:19:47,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 116.5) internal successors, (466), 4 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:47,574 INFO L276 IsEmpty]: Start isEmpty. Operand 11103 states and 11306 transitions. [2024-10-12 16:19:47,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1033 [2024-10-12 16:19:47,584 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:47,584 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, 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:19:47,584 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-12 16:19:47,584 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:47,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:47,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1220701310, now seen corresponding path program 1 times [2024-10-12 16:19:47,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:47,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477080316] [2024-10-12 16:19:47,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:47,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:47,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:48,499 INFO L134 CoverageAnalysis]: Checked inductivity of 1876 backedges. 35 proven. 746 refuted. 0 times theorem prover too weak. 1095 trivial. 0 not checked. [2024-10-12 16:19:48,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:48,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477080316] [2024-10-12 16:19:48,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477080316] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:19:48,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1099591716] [2024-10-12 16:19:48,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:48,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:19:48,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:19:48,504 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) [2024-10-12 16:19:48,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-12 16:19:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:48,775 INFO L255 TraceCheckSpWp]: Trace formula consists of 1185 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 16:19:48,786 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:19:51,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1876 backedges. 35 proven. 746 refuted. 0 times theorem prover too weak. 1095 trivial. 0 not checked. [2024-10-12 16:19:51,622 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 16:19:53,068 INFO L134 CoverageAnalysis]: Checked inductivity of 1876 backedges. 35 proven. 746 refuted. 0 times theorem prover too weak. 1095 trivial. 0 not checked. [2024-10-12 16:19:53,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1099591716] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 16:19:53,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 16:19:53,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-10-12 16:19:53,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547590362] [2024-10-12 16:19:53,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 16:19:53,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-12 16:19:53,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:53,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-12 16:19:53,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-10-12 16:19:53,071 INFO L87 Difference]: Start difference. First operand 11103 states and 11306 transitions. Second operand has 10 states, 10 states have (on average 111.1) internal successors, (1111), 9 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:55,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:19:55,927 INFO L93 Difference]: Finished difference Result 22190 states and 22602 transitions. [2024-10-12 16:19:55,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 16:19:55,928 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 111.1) internal successors, (1111), 9 states have internal predecessors, (1111), 0 states have call successors, (0), 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 1032 [2024-10-12 16:19:55,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:19:55,948 INFO L225 Difference]: With dead ends: 22190 [2024-10-12 16:19:55,949 INFO L226 Difference]: Without dead ends: 22188 [2024-10-12 16:19:55,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2073 GetRequests, 2058 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=178, Unknown=0, NotChecked=0, Total=272 [2024-10-12 16:19:55,955 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 2507 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 2975 mSolverCounterSat, 361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2507 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 3336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 361 IncrementalHoareTripleChecker+Valid, 2975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-10-12 16:19:55,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2507 Valid, 98 Invalid, 3336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [361 Valid, 2975 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-10-12 16:19:55,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22188 states. [2024-10-12 16:19:56,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22188 to 10804. [2024-10-12 16:19:56,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10804 states, 10803 states have (on average 1.0186985096732388) internal successors, (11005), 10803 states have internal predecessors, (11005), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:56,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10804 states to 10804 states and 11005 transitions. [2024-10-12 16:19:56,071 INFO L78 Accepts]: Start accepts. Automaton has 10804 states and 11005 transitions. Word has length 1032 [2024-10-12 16:19:56,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:19:56,072 INFO L471 AbstractCegarLoop]: Abstraction has 10804 states and 11005 transitions. [2024-10-12 16:19:56,072 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 111.1) internal successors, (1111), 9 states have internal predecessors, (1111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:19:56,072 INFO L276 IsEmpty]: Start isEmpty. Operand 10804 states and 11005 transitions. [2024-10-12 16:19:56,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1154 [2024-10-12 16:19:56,082 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 16:19:56,083 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-10-12 16:19:56,096 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-12 16:19:56,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:19:56,284 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 16:19:56,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 16:19:56,284 INFO L85 PathProgramCache]: Analyzing trace with hash -93961252, now seen corresponding path program 1 times [2024-10-12 16:19:56,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 16:19:56,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481999192] [2024-10-12 16:19:56,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:56,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 16:19:56,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:58,088 INFO L134 CoverageAnalysis]: Checked inductivity of 2251 backedges. 1394 proven. 152 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2024-10-12 16:19:58,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 16:19:58,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481999192] [2024-10-12 16:19:58,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481999192] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 16:19:58,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24777969] [2024-10-12 16:19:58,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 16:19:58,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:19:58,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 16:19:58,091 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 16:19:58,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-12 16:19:58,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 16:19:58,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 1339 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 16:19:58,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 16:19:58,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2251 backedges. 876 proven. 0 refuted. 0 times theorem prover too weak. 1375 trivial. 0 not checked. [2024-10-12 16:19:58,723 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 16:19:58,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24777969] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 16:19:58,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 16:19:58,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 11 [2024-10-12 16:19:58,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558542068] [2024-10-12 16:19:58,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 16:19:58,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 16:19:58,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 16:19:58,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 16:19:58,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-12 16:19:58,726 INFO L87 Difference]: Start difference. First operand 10804 states and 11005 transitions. Second operand has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:20:00,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 16:20:00,270 INFO L93 Difference]: Finished difference Result 18594 states and 18944 transitions. [2024-10-12 16:20:00,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 16:20:00,271 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 0 states have call successors, (0), 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 1153 [2024-10-12 16:20:00,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 16:20:00,272 INFO L225 Difference]: With dead ends: 18594 [2024-10-12 16:20:00,272 INFO L226 Difference]: Without dead ends: 0 [2024-10-12 16:20:00,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1160 GetRequests, 1151 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-12 16:20:00,278 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 774 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 2007 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 2105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 2007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-12 16:20:00,278 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 78 Invalid, 2105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 2007 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-12 16:20:00,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-12 16:20:00,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-12 16:20:00,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:20:00,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-12 16:20:00,279 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1153 [2024-10-12 16:20:00,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 16:20:00,279 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 16:20:00,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 16:20:00,280 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-12 16:20:00,280 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-12 16:20:00,282 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 16:20:00,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-12 16:20:00,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 16:20:00,486 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 16:20:00,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.