./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f5e5c42bbeffae4fb860efffdbf66b7537cb720af3f49bb62a0f81dcf7dbce99 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 06:20:42,011 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 06:20:42,106 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-14 06:20:42,112 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 06:20:42,112 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 06:20:42,133 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 06:20:42,134 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 06:20:42,134 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 06:20:42,135 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 06:20:42,135 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 06:20:42,136 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 06:20:42,136 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 06:20:42,137 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 06:20:42,137 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 06:20:42,137 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 06:20:42,138 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 06:20:42,138 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 06:20:42,138 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 06:20:42,139 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 06:20:42,139 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 06:20:42,142 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 06:20:42,143 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 06:20:42,143 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 06:20:42,144 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 06:20:42,144 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 06:20:42,145 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 06:20:42,145 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 06:20:42,145 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 06:20:42,146 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 06:20:42,146 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 06:20:42,146 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 06:20:42,147 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 06:20:42,147 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 06:20:42,147 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 06:20:42,148 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 06:20:42,148 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 06:20:42,148 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 06:20:42,149 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 06:20:42,149 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 06:20:42,149 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f5e5c42bbeffae4fb860efffdbf66b7537cb720af3f49bb62a0f81dcf7dbce99 [2024-10-14 06:20:42,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 06:20:42,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 06:20:42,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 06:20:42,441 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 06:20:42,442 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 06:20:42,443 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c [2024-10-14 06:20:43,998 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 06:20:44,229 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 06:20:44,230 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c [2024-10-14 06:20:44,241 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/895c6976b/84d92cb9f2424a959aaa5b795f548930/FLAGd40981715 [2024-10-14 06:20:44,254 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/895c6976b/84d92cb9f2424a959aaa5b795f548930 [2024-10-14 06:20:44,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 06:20:44,258 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 06:20:44,260 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 06:20:44,260 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 06:20:44,266 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 06:20:44,267 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:20:44" (1/1) ... [2024-10-14 06:20:44,268 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68c13a07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:20:44, skipping insertion in model container [2024-10-14 06:20:44,268 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 06:20:44" (1/1) ... [2024-10-14 06:20:44,313 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 06:20:44,494 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/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c[1246,1259] [2024-10-14 06:20:44,661 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 06:20:44,683 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 06:20:44,694 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/hardware-verification-bv/btor2c-lazyMod.h_Ibuf.c[1246,1259] [2024-10-14 06:20:44,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 06:20:44,809 INFO L204 MainTranslator]: Completed translation [2024-10-14 06:20:44,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:20:44 WrapperNode [2024-10-14 06:20:44,810 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 06:20:44,811 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 06:20:44,812 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 06:20:44,812 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 06:20:44,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:20:44" (1/1) ... [2024-10-14 06:20:44,885 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:20:44" (1/1) ... [2024-10-14 06:20:45,092 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1466 [2024-10-14 06:20:45,093 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 06:20:45,093 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 06:20:45,094 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 06:20:45,094 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 06:20:45,105 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:20:44" (1/1) ... [2024-10-14 06:20:45,106 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:20:44" (1/1) ... [2024-10-14 06:20:45,151 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:20:44" (1/1) ... [2024-10-14 06:20:45,228 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]. [2024-10-14 06:20:45,229 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:20:44" (1/1) ... [2024-10-14 06:20:45,229 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:20:44" (1/1) ... [2024-10-14 06:20:45,287 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:20:44" (1/1) ... [2024-10-14 06:20:45,307 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:20:44" (1/1) ... [2024-10-14 06:20:45,328 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:20:44" (1/1) ... [2024-10-14 06:20:45,345 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:20:44" (1/1) ... [2024-10-14 06:20:45,393 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 06:20:45,397 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 06:20:45,397 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 06:20:45,397 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 06:20:45,399 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:20:44" (1/1) ... [2024-10-14 06:20:45,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 06:20:45,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 06:20:45,435 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) [2024-10-14 06:20:45,440 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 [2024-10-14 06:20:45,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 06:20:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 06:20:45,498 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 06:20:45,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 06:20:45,693 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 06:20:45,695 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 06:20:47,467 INFO L? ?]: Removed 912 outVars from TransFormulas that were not future-live. [2024-10-14 06:20:47,468 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 06:20:47,522 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 06:20:47,526 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 06:20:47,526 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:20:47 BoogieIcfgContainer [2024-10-14 06:20:47,527 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 06:20:47,529 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 06:20:47,529 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 06:20:47,532 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 06:20:47,534 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 06:20:44" (1/3) ... [2024-10-14 06:20:47,535 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53cfad91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:20:47, skipping insertion in model container [2024-10-14 06:20:47,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 06:20:44" (2/3) ... [2024-10-14 06:20:47,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53cfad91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 06:20:47, skipping insertion in model container [2024-10-14 06:20:47,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 06:20:47" (3/3) ... [2024-10-14 06:20:47,537 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Ibuf.c [2024-10-14 06:20:47,552 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 06:20:47,553 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 06:20:47,641 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 06:20:47,648 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;@5707c783, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 06:20:47,648 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 06:20:47,655 INFO L276 IsEmpty]: Start isEmpty. Operand has 479 states, 477 states have (on average 1.50104821802935) internal successors, (716), 478 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:47,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-14 06:20:47,664 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:20:47,664 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] [2024-10-14 06:20:47,665 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:20:47,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:20:47,672 INFO L85 PathProgramCache]: Analyzing trace with hash 676196693, now seen corresponding path program 1 times [2024-10-14 06:20:47,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:20:47,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106800858] [2024-10-14 06:20:47,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:20:47,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:20:47,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:20:48,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:20:48,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:20:48,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106800858] [2024-10-14 06:20:48,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106800858] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:20:48,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:20:48,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:20:48,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841571121] [2024-10-14 06:20:48,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:20:48,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:20:48,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:20:48,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:20:48,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:20:48,316 INFO L87 Difference]: Start difference. First operand has 479 states, 477 states have (on average 1.50104821802935) internal successors, (716), 478 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:48,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:20:48,447 INFO L93 Difference]: Finished difference Result 950 states and 1422 transitions. [2024-10-14 06:20:48,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:20:48,450 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 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 20 [2024-10-14 06:20:48,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:20:48,466 INFO L225 Difference]: With dead ends: 950 [2024-10-14 06:20:48,466 INFO L226 Difference]: Without dead ends: 480 [2024-10-14 06:20:48,472 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:20:48,477 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 0 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2128 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:20:48,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2128 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:20:48,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2024-10-14 06:20:48,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 480. [2024-10-14 06:20:48,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 479 states have (on average 1.4947807933194155) internal successors, (716), 479 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:48,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 716 transitions. [2024-10-14 06:20:48,547 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 716 transitions. Word has length 20 [2024-10-14 06:20:48,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:20:48,550 INFO L471 AbstractCegarLoop]: Abstraction has 480 states and 716 transitions. [2024-10-14 06:20:48,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:48,550 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 716 transitions. [2024-10-14 06:20:48,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-14 06:20:48,552 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:20:48,552 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] [2024-10-14 06:20:48,552 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 06:20:48,553 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:20:48,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:20:48,553 INFO L85 PathProgramCache]: Analyzing trace with hash -511043740, now seen corresponding path program 1 times [2024-10-14 06:20:48,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:20:48,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135715587] [2024-10-14 06:20:48,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:20:48,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:20:48,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:20:48,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:20:48,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:20:48,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135715587] [2024-10-14 06:20:48,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135715587] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:20:48,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:20:48,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:20:48,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65631160] [2024-10-14 06:20:48,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:20:48,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 06:20:48,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:20:48,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 06:20:48,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:20:48,739 INFO L87 Difference]: Start difference. First operand 480 states and 716 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:48,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:20:48,785 INFO L93 Difference]: Finished difference Result 953 states and 1422 transitions. [2024-10-14 06:20:48,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 06:20:48,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 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 21 [2024-10-14 06:20:48,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:20:48,790 INFO L225 Difference]: With dead ends: 953 [2024-10-14 06:20:48,791 INFO L226 Difference]: Without dead ends: 482 [2024-10-14 06:20:48,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 06:20:48,794 INFO L432 NwaCegarLoop]: 711 mSDtfsCounter, 0 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:20:48,797 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2125 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:20:48,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-10-14 06:20:48,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2024-10-14 06:20:48,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 481 states have (on average 1.4927234927234927) internal successors, (718), 481 states have internal predecessors, (718), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:48,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 718 transitions. [2024-10-14 06:20:48,832 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 718 transitions. Word has length 21 [2024-10-14 06:20:48,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:20:48,832 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 718 transitions. [2024-10-14 06:20:48,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:48,833 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 718 transitions. [2024-10-14 06:20:48,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-14 06:20:48,834 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:20:48,834 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] [2024-10-14 06:20:48,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 06:20:48,834 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:20:48,836 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:20:48,836 INFO L85 PathProgramCache]: Analyzing trace with hash 239547406, now seen corresponding path program 1 times [2024-10-14 06:20:48,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:20:48,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29637968] [2024-10-14 06:20:48,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:20:48,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:20:48,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:20:49,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:20:49,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:20:49,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29637968] [2024-10-14 06:20:49,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29637968] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:20:49,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:20:49,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 06:20:49,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374552501] [2024-10-14 06:20:49,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:20:49,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:20:49,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:20:49,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:20:49,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:20:49,141 INFO L87 Difference]: Start difference. First operand 482 states and 718 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:49,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:20:49,203 INFO L93 Difference]: Finished difference Result 959 states and 1429 transitions. [2024-10-14 06:20:49,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 06:20:49,204 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 22 [2024-10-14 06:20:49,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:20:49,207 INFO L225 Difference]: With dead ends: 959 [2024-10-14 06:20:49,207 INFO L226 Difference]: Without dead ends: 486 [2024-10-14 06:20:49,209 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:20:49,211 INFO L432 NwaCegarLoop]: 709 mSDtfsCounter, 706 mSDsluCounter, 1412 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 2121 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:20:49,213 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 2121 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:20:49,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2024-10-14 06:20:49,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 485. [2024-10-14 06:20:49,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 484 states have (on average 1.4896694214876034) internal successors, (721), 484 states have internal predecessors, (721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:49,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 721 transitions. [2024-10-14 06:20:49,229 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 721 transitions. Word has length 22 [2024-10-14 06:20:49,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:20:49,229 INFO L471 AbstractCegarLoop]: Abstraction has 485 states and 721 transitions. [2024-10-14 06:20:49,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:49,230 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 721 transitions. [2024-10-14 06:20:49,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-14 06:20:49,231 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:20:49,231 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] [2024-10-14 06:20:49,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 06:20:49,232 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:20:49,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:20:49,233 INFO L85 PathProgramCache]: Analyzing trace with hash 400580199, now seen corresponding path program 1 times [2024-10-14 06:20:49,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:20:49,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782477193] [2024-10-14 06:20:49,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:20:49,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:20:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:20:49,541 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:20:49,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:20:49,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782477193] [2024-10-14 06:20:49,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782477193] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:20:49,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:20:49,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 06:20:49,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221796890] [2024-10-14 06:20:49,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:20:49,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 06:20:49,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:20:49,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 06:20:49,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:20:49,546 INFO L87 Difference]: Start difference. First operand 485 states and 721 transitions. Second operand has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:49,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:20:49,736 INFO L93 Difference]: Finished difference Result 1412 states and 2100 transitions. [2024-10-14 06:20:49,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 06:20:49,737 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 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 23 [2024-10-14 06:20:49,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:20:49,743 INFO L225 Difference]: With dead ends: 1412 [2024-10-14 06:20:49,744 INFO L226 Difference]: Without dead ends: 936 [2024-10-14 06:20:49,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-10-14 06:20:49,747 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 751 mSDsluCounter, 3439 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 4140 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:20:49,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [751 Valid, 4140 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:20:49,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states. [2024-10-14 06:20:49,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 494. [2024-10-14 06:20:49,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 493 states have (on average 1.486815415821501) internal successors, (733), 493 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:49,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 733 transitions. [2024-10-14 06:20:49,763 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 733 transitions. Word has length 23 [2024-10-14 06:20:49,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:20:49,763 INFO L471 AbstractCegarLoop]: Abstraction has 494 states and 733 transitions. [2024-10-14 06:20:49,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.2857142857142856) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:49,764 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 733 transitions. [2024-10-14 06:20:49,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-14 06:20:49,765 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:20:49,765 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] [2024-10-14 06:20:49,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 06:20:49,766 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:20:49,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:20:49,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1842602237, now seen corresponding path program 1 times [2024-10-14 06:20:49,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:20:49,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041878383] [2024-10-14 06:20:49,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:20:49,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:20:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:20:50,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:20:50,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:20:50,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041878383] [2024-10-14 06:20:50,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041878383] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:20:50,149 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:20:50,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 06:20:50,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486293853] [2024-10-14 06:20:50,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:20:50,151 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 06:20:50,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:20:50,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 06:20:50,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-14 06:20:50,152 INFO L87 Difference]: Start difference. First operand 494 states and 733 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:50,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:20:50,397 INFO L93 Difference]: Finished difference Result 1049 states and 1550 transitions. [2024-10-14 06:20:50,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 06:20:50,397 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2024-10-14 06:20:50,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:20:50,400 INFO L225 Difference]: With dead ends: 1049 [2024-10-14 06:20:50,400 INFO L226 Difference]: Without dead ends: 568 [2024-10-14 06:20:50,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-10-14 06:20:50,403 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 118 mSDsluCounter, 5566 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 6263 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:20:50,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 6263 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:20:50,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-10-14 06:20:50,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 506. [2024-10-14 06:20:50,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 505 states have (on average 1.4811881188118812) internal successors, (748), 505 states have internal predecessors, (748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:50,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 748 transitions. [2024-10-14 06:20:50,415 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 748 transitions. Word has length 24 [2024-10-14 06:20:50,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:20:50,416 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 748 transitions. [2024-10-14 06:20:50,416 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:50,416 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 748 transitions. [2024-10-14 06:20:50,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-14 06:20:50,420 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:20:50,420 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] [2024-10-14 06:20:50,420 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 06:20:50,421 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:20:50,421 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:20:50,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1796706759, now seen corresponding path program 1 times [2024-10-14 06:20:50,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:20:50,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738999232] [2024-10-14 06:20:50,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:20:50,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:20:50,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:20:50,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:20:50,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:20:50,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738999232] [2024-10-14 06:20:50,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738999232] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:20:50,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:20:50,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 06:20:50,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380684892] [2024-10-14 06:20:50,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:20:50,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 06:20:50,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:20:50,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 06:20:50,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 06:20:50,735 INFO L87 Difference]: Start difference. First operand 506 states and 748 transitions. Second operand has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:50,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:20:50,959 INFO L93 Difference]: Finished difference Result 1047 states and 1547 transitions. [2024-10-14 06:20:50,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 06:20:50,959 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2024-10-14 06:20:50,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:20:50,962 INFO L225 Difference]: With dead ends: 1047 [2024-10-14 06:20:50,963 INFO L226 Difference]: Without dead ends: 571 [2024-10-14 06:20:50,964 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-10-14 06:20:50,965 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 118 mSDsluCounter, 5564 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 6261 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:20:50,966 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 6261 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:20:50,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-10-14 06:20:50,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 512. [2024-10-14 06:20:50,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 512 states, 511 states have (on average 1.4794520547945205) internal successors, (756), 511 states have internal predecessors, (756), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:50,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 512 states to 512 states and 756 transitions. [2024-10-14 06:20:50,977 INFO L78 Accepts]: Start accepts. Automaton has 512 states and 756 transitions. Word has length 24 [2024-10-14 06:20:50,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:20:50,977 INFO L471 AbstractCegarLoop]: Abstraction has 512 states and 756 transitions. [2024-10-14 06:20:50,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.4) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:50,980 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states and 756 transitions. [2024-10-14 06:20:50,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-14 06:20:50,981 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:20:50,981 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] [2024-10-14 06:20:50,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 06:20:50,983 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:20:50,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:20:50,983 INFO L85 PathProgramCache]: Analyzing trace with hash -2111654180, now seen corresponding path program 1 times [2024-10-14 06:20:50,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:20:50,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321782676] [2024-10-14 06:20:50,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:20:50,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:20:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:20:51,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:20:51,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:20:51,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321782676] [2024-10-14 06:20:51,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321782676] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:20:51,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:20:51,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 06:20:51,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422022005] [2024-10-14 06:20:51,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:20:51,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 06:20:51,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:20:51,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 06:20:51,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 06:20:51,285 INFO L87 Difference]: Start difference. First operand 512 states and 756 transitions. Second operand has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:51,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:20:51,423 INFO L93 Difference]: Finished difference Result 1363 states and 2020 transitions. [2024-10-14 06:20:51,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 06:20:51,424 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 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 24 [2024-10-14 06:20:51,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:20:51,427 INFO L225 Difference]: With dead ends: 1363 [2024-10-14 06:20:51,427 INFO L226 Difference]: Without dead ends: 867 [2024-10-14 06:20:51,429 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-10-14 06:20:51,429 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 602 mSDsluCounter, 4027 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 602 SdHoareTripleChecker+Valid, 4727 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:20:51,430 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [602 Valid, 4727 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:20:51,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 867 states. [2024-10-14 06:20:51,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 867 to 497. [2024-10-14 06:20:51,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 496 states have (on average 1.4798387096774193) internal successors, (734), 496 states have internal predecessors, (734), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:51,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 734 transitions. [2024-10-14 06:20:51,442 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 734 transitions. Word has length 24 [2024-10-14 06:20:51,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:20:51,443 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 734 transitions. [2024-10-14 06:20:51,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.0) internal successors, (24), 7 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:51,443 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 734 transitions. [2024-10-14 06:20:51,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-14 06:20:51,444 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:20:51,444 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] [2024-10-14 06:20:51,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 06:20:51,444 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:20:51,445 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:20:51,445 INFO L85 PathProgramCache]: Analyzing trace with hash 182681071, now seen corresponding path program 1 times [2024-10-14 06:20:51,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:20:51,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213889390] [2024-10-14 06:20:51,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:20:51,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:20:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:20:51,875 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:20:51,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:20:51,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213889390] [2024-10-14 06:20:51,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213889390] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:20:51,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:20:51,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 06:20:51,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931399211] [2024-10-14 06:20:51,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:20:51,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-14 06:20:51,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:20:51,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-14 06:20:51,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-10-14 06:20:51,878 INFO L87 Difference]: Start difference. First operand 497 states and 734 transitions. Second operand has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:52,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:20:52,091 INFO L93 Difference]: Finished difference Result 1006 states and 1489 transitions. [2024-10-14 06:20:52,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 06:20:52,092 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 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 25 [2024-10-14 06:20:52,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:20:52,094 INFO L225 Difference]: With dead ends: 1006 [2024-10-14 06:20:52,094 INFO L226 Difference]: Without dead ends: 530 [2024-10-14 06:20:52,096 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-10-14 06:20:52,096 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 66 mSDsluCounter, 4892 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 5593 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:20:52,097 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 5593 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:20:52,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2024-10-14 06:20:52,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 497. [2024-10-14 06:20:52,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 496 states have (on average 1.4778225806451613) internal successors, (733), 496 states have internal predecessors, (733), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:52,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 733 transitions. [2024-10-14 06:20:52,106 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 733 transitions. Word has length 25 [2024-10-14 06:20:52,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:20:52,107 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 733 transitions. [2024-10-14 06:20:52,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.272727272727273) internal successors, (25), 10 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:52,107 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 733 transitions. [2024-10-14 06:20:52,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-10-14 06:20:52,112 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:20:52,112 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:20:52,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 06:20:52,113 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:20:52,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:20:52,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1829188904, now seen corresponding path program 1 times [2024-10-14 06:20:52,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:20:52,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936628471] [2024-10-14 06:20:52,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:20:52,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:20:53,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:20:55,837 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:20:55,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:20:55,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936628471] [2024-10-14 06:20:55,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936628471] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:20:55,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:20:55,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 06:20:55,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142119731] [2024-10-14 06:20:55,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:20:55,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 06:20:55,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:20:55,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 06:20:55,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:20:55,843 INFO L87 Difference]: Start difference. First operand 497 states and 733 transitions. Second operand has 9 states, 9 states have (on average 28.88888888888889) internal successors, (260), 8 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:56,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:20:56,004 INFO L93 Difference]: Finished difference Result 1543 states and 2294 transitions. [2024-10-14 06:20:56,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 06:20:56,005 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 28.88888888888889) internal successors, (260), 8 states have internal predecessors, (260), 0 states have call successors, (0), 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 260 [2024-10-14 06:20:56,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:20:56,010 INFO L225 Difference]: With dead ends: 1543 [2024-10-14 06:20:56,010 INFO L226 Difference]: Without dead ends: 1067 [2024-10-14 06:20:56,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:20:56,012 INFO L432 NwaCegarLoop]: 701 mSDtfsCounter, 657 mSDsluCounter, 4883 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 5584 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:20:56,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 5584 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:20:56,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1067 states. [2024-10-14 06:20:56,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1067 to 888. [2024-10-14 06:20:56,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 888 states, 887 states have (on average 1.4825253664036078) internal successors, (1315), 887 states have internal predecessors, (1315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:56,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 888 states to 888 states and 1315 transitions. [2024-10-14 06:20:56,034 INFO L78 Accepts]: Start accepts. Automaton has 888 states and 1315 transitions. Word has length 260 [2024-10-14 06:20:56,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:20:56,035 INFO L471 AbstractCegarLoop]: Abstraction has 888 states and 1315 transitions. [2024-10-14 06:20:56,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 28.88888888888889) internal successors, (260), 8 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:56,036 INFO L276 IsEmpty]: Start isEmpty. Operand 888 states and 1315 transitions. [2024-10-14 06:20:56,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-10-14 06:20:56,039 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:20:56,040 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:20:56,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 06:20:56,040 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:20:56,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:20:56,041 INFO L85 PathProgramCache]: Analyzing trace with hash -192091736, now seen corresponding path program 1 times [2024-10-14 06:20:56,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:20:56,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520265929] [2024-10-14 06:20:56,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:20:56,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:20:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:20:58,401 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:20:58,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:20:58,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520265929] [2024-10-14 06:20:58,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520265929] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:20:58,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:20:58,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 06:20:58,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308014217] [2024-10-14 06:20:58,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:20:58,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 06:20:58,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:20:58,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 06:20:58,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-14 06:20:58,405 INFO L87 Difference]: Start difference. First operand 888 states and 1315 transitions. Second operand has 10 states, 10 states have (on average 26.1) internal successors, (261), 9 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:58,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:20:58,631 INFO L93 Difference]: Finished difference Result 2107 states and 3135 transitions. [2024-10-14 06:20:58,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 06:20:58,634 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 26.1) internal successors, (261), 9 states have internal predecessors, (261), 0 states have call successors, (0), 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 261 [2024-10-14 06:20:58,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:20:58,641 INFO L225 Difference]: With dead ends: 2107 [2024-10-14 06:20:58,642 INFO L226 Difference]: Without dead ends: 1483 [2024-10-14 06:20:58,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2024-10-14 06:20:58,646 INFO L432 NwaCegarLoop]: 696 mSDtfsCounter, 958 mSDsluCounter, 5554 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 958 SdHoareTripleChecker+Valid, 6250 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:20:58,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [958 Valid, 6250 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:20:58,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1483 states. [2024-10-14 06:20:58,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1483 to 1084. [2024-10-14 06:20:58,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 1083 states have (on average 1.4838411819021238) internal successors, (1607), 1083 states have internal predecessors, (1607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:58,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1607 transitions. [2024-10-14 06:20:58,671 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1607 transitions. Word has length 261 [2024-10-14 06:20:58,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:20:58,672 INFO L471 AbstractCegarLoop]: Abstraction has 1084 states and 1607 transitions. [2024-10-14 06:20:58,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 26.1) internal successors, (261), 9 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:20:58,673 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1607 transitions. [2024-10-14 06:20:58,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2024-10-14 06:20:58,676 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:20:58,676 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:20:58,677 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 06:20:58,677 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:20:58,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:20:58,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1068123040, now seen corresponding path program 1 times [2024-10-14 06:20:58,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:20:58,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744794317] [2024-10-14 06:20:58,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:20:58,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:20:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:00,611 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:21:00,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:00,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744794317] [2024-10-14 06:21:00,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744794317] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:00,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:00,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 06:21:00,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785409217] [2024-10-14 06:21:00,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:00,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 06:21:00,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:00,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 06:21:00,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:21:00,615 INFO L87 Difference]: Start difference. First operand 1084 states and 1607 transitions. Second operand has 9 states, 9 states have (on average 29.11111111111111) internal successors, (262), 8 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:00,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:00,784 INFO L93 Difference]: Finished difference Result 1993 states and 2963 transitions. [2024-10-14 06:21:00,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 06:21:00,785 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 29.11111111111111) internal successors, (262), 8 states have internal predecessors, (262), 0 states have call successors, (0), 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 262 [2024-10-14 06:21:00,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:00,790 INFO L225 Difference]: With dead ends: 1993 [2024-10-14 06:21:00,791 INFO L226 Difference]: Without dead ends: 1517 [2024-10-14 06:21:00,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-10-14 06:21:00,793 INFO L432 NwaCegarLoop]: 698 mSDtfsCounter, 683 mSDsluCounter, 4713 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 683 SdHoareTripleChecker+Valid, 5411 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:00,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [683 Valid, 5411 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:21:00,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1517 states. [2024-10-14 06:21:00,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1517 to 1390. [2024-10-14 06:21:00,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1390 states, 1389 states have (on average 1.4852411807055435) internal successors, (2063), 1389 states have internal predecessors, (2063), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:00,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1390 states to 1390 states and 2063 transitions. [2024-10-14 06:21:00,827 INFO L78 Accepts]: Start accepts. Automaton has 1390 states and 2063 transitions. Word has length 262 [2024-10-14 06:21:00,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:00,827 INFO L471 AbstractCegarLoop]: Abstraction has 1390 states and 2063 transitions. [2024-10-14 06:21:00,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 29.11111111111111) internal successors, (262), 8 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:00,828 INFO L276 IsEmpty]: Start isEmpty. Operand 1390 states and 2063 transitions. [2024-10-14 06:21:00,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2024-10-14 06:21:00,833 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:00,833 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:00,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-14 06:21:00,834 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:00,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:00,835 INFO L85 PathProgramCache]: Analyzing trace with hash -224832197, now seen corresponding path program 1 times [2024-10-14 06:21:00,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:00,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665089078] [2024-10-14 06:21:00,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:00,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:01,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:02,424 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:21:02,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:02,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665089078] [2024-10-14 06:21:02,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665089078] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:02,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:02,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 06:21:02,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400519662] [2024-10-14 06:21:02,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:02,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 06:21:02,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:02,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 06:21:02,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:21:02,427 INFO L87 Difference]: Start difference. First operand 1390 states and 2063 transitions. Second operand has 9 states, 9 states have (on average 29.22222222222222) internal successors, (263), 9 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:02,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:02,633 INFO L93 Difference]: Finished difference Result 2321 states and 3448 transitions. [2024-10-14 06:21:02,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 06:21:02,634 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 29.22222222222222) internal successors, (263), 9 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 263 [2024-10-14 06:21:02,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:02,640 INFO L225 Difference]: With dead ends: 2321 [2024-10-14 06:21:02,641 INFO L226 Difference]: Without dead ends: 1845 [2024-10-14 06:21:02,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-10-14 06:21:02,643 INFO L432 NwaCegarLoop]: 1328 mSDtfsCounter, 744 mSDsluCounter, 8589 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 9917 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:02,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 9917 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:21:02,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2024-10-14 06:21:02,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 1403. [2024-10-14 06:21:02,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1403 states, 1402 states have (on average 1.4835948644793153) internal successors, (2080), 1402 states have internal predecessors, (2080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:02,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1403 states to 1403 states and 2080 transitions. [2024-10-14 06:21:02,668 INFO L78 Accepts]: Start accepts. Automaton has 1403 states and 2080 transitions. Word has length 263 [2024-10-14 06:21:02,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:02,669 INFO L471 AbstractCegarLoop]: Abstraction has 1403 states and 2080 transitions. [2024-10-14 06:21:02,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 29.22222222222222) internal successors, (263), 9 states have internal predecessors, (263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:02,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1403 states and 2080 transitions. [2024-10-14 06:21:02,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-10-14 06:21:02,673 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:02,673 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:02,673 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 06:21:02,674 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:02,674 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:02,674 INFO L85 PathProgramCache]: Analyzing trace with hash 244449967, now seen corresponding path program 1 times [2024-10-14 06:21:02,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:02,674 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379692780] [2024-10-14 06:21:02,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:02,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:03,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:04,421 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:21:04,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:04,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379692780] [2024-10-14 06:21:04,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379692780] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:04,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:04,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 06:21:04,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377154684] [2024-10-14 06:21:04,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:04,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-14 06:21:04,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:04,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-14 06:21:04,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-14 06:21:04,424 INFO L87 Difference]: Start difference. First operand 1403 states and 2080 transitions. Second operand has 12 states, 12 states have (on average 22.0) internal successors, (264), 12 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:04,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:04,586 INFO L93 Difference]: Finished difference Result 2813 states and 4179 transitions. [2024-10-14 06:21:04,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 06:21:04,587 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 22.0) internal successors, (264), 12 states have internal predecessors, (264), 0 states have call successors, (0), 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 264 [2024-10-14 06:21:04,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:04,594 INFO L225 Difference]: With dead ends: 2813 [2024-10-14 06:21:04,594 INFO L226 Difference]: Without dead ends: 1763 [2024-10-14 06:21:04,596 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-14 06:21:04,598 INFO L432 NwaCegarLoop]: 702 mSDtfsCounter, 138 mSDsluCounter, 6383 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 7085 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:04,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 7085 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:21:04,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2024-10-14 06:21:04,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 1610. [2024-10-14 06:21:04,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1610 states, 1609 states have (on average 1.4810441267868242) internal successors, (2383), 1609 states have internal predecessors, (2383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:04,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1610 states to 1610 states and 2383 transitions. [2024-10-14 06:21:04,641 INFO L78 Accepts]: Start accepts. Automaton has 1610 states and 2383 transitions. Word has length 264 [2024-10-14 06:21:04,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:04,641 INFO L471 AbstractCegarLoop]: Abstraction has 1610 states and 2383 transitions. [2024-10-14 06:21:04,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 22.0) internal successors, (264), 12 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:04,642 INFO L276 IsEmpty]: Start isEmpty. Operand 1610 states and 2383 transitions. [2024-10-14 06:21:04,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2024-10-14 06:21:04,646 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:04,646 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:04,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 06:21:04,646 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:04,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:04,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1315927844, now seen corresponding path program 1 times [2024-10-14 06:21:04,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:04,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893871544] [2024-10-14 06:21:04,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:04,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:05,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:07,005 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:21:07,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:07,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893871544] [2024-10-14 06:21:07,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893871544] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:07,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:07,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 06:21:07,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822617496] [2024-10-14 06:21:07,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:07,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 06:21:07,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:07,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 06:21:07,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:21:07,008 INFO L87 Difference]: Start difference. First operand 1610 states and 2383 transitions. Second operand has 9 states, 9 states have (on average 29.333333333333332) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:07,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:07,158 INFO L93 Difference]: Finished difference Result 3045 states and 4513 transitions. [2024-10-14 06:21:07,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 06:21:07,158 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 29.333333333333332) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 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 264 [2024-10-14 06:21:07,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:07,168 INFO L225 Difference]: With dead ends: 3045 [2024-10-14 06:21:07,168 INFO L226 Difference]: Without dead ends: 2355 [2024-10-14 06:21:07,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-14 06:21:07,171 INFO L432 NwaCegarLoop]: 694 mSDtfsCounter, 865 mSDsluCounter, 4053 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 865 SdHoareTripleChecker+Valid, 4747 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:07,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [865 Valid, 4747 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:21:07,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2355 states. [2024-10-14 06:21:07,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2355 to 2288. [2024-10-14 06:21:07,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2288 states, 2287 states have (on average 1.4809794490599038) internal successors, (3387), 2287 states have internal predecessors, (3387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:07,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2288 states to 2288 states and 3387 transitions. [2024-10-14 06:21:07,223 INFO L78 Accepts]: Start accepts. Automaton has 2288 states and 3387 transitions. Word has length 264 [2024-10-14 06:21:07,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:07,223 INFO L471 AbstractCegarLoop]: Abstraction has 2288 states and 3387 transitions. [2024-10-14 06:21:07,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 29.333333333333332) internal successors, (264), 8 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:07,224 INFO L276 IsEmpty]: Start isEmpty. Operand 2288 states and 3387 transitions. [2024-10-14 06:21:07,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-10-14 06:21:07,229 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:07,230 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:07,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-14 06:21:07,230 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:07,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:07,232 INFO L85 PathProgramCache]: Analyzing trace with hash -894818944, now seen corresponding path program 1 times [2024-10-14 06:21:07,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:07,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997510817] [2024-10-14 06:21:07,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:07,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:07,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:07,996 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:21:07,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:07,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997510817] [2024-10-14 06:21:07,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997510817] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:07,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:07,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 06:21:07,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582580792] [2024-10-14 06:21:07,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:07,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 06:21:07,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:07,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 06:21:07,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:21:08,000 INFO L87 Difference]: Start difference. First operand 2288 states and 3387 transitions. Second operand has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:08,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:08,294 INFO L93 Difference]: Finished difference Result 3566 states and 5275 transitions. [2024-10-14 06:21:08,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 06:21:08,295 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 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 265 [2024-10-14 06:21:08,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:08,304 INFO L225 Difference]: With dead ends: 3566 [2024-10-14 06:21:08,304 INFO L226 Difference]: Without dead ends: 2304 [2024-10-14 06:21:08,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:21:08,307 INFO L432 NwaCegarLoop]: 1175 mSDtfsCounter, 573 mSDsluCounter, 4132 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 5307 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:08,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 5307 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 06:21:08,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2304 states. [2024-10-14 06:21:08,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2304 to 2296. [2024-10-14 06:21:08,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2296 states, 2295 states have (on average 1.4793028322440087) internal successors, (3395), 2295 states have internal predecessors, (3395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:08,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2296 states to 2296 states and 3395 transitions. [2024-10-14 06:21:08,354 INFO L78 Accepts]: Start accepts. Automaton has 2296 states and 3395 transitions. Word has length 265 [2024-10-14 06:21:08,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:08,355 INFO L471 AbstractCegarLoop]: Abstraction has 2296 states and 3395 transitions. [2024-10-14 06:21:08,355 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.166666666666664) internal successors, (265), 6 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:08,356 INFO L276 IsEmpty]: Start isEmpty. Operand 2296 states and 3395 transitions. [2024-10-14 06:21:08,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-10-14 06:21:08,361 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:08,361 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:08,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 06:21:08,362 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:08,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:08,363 INFO L85 PathProgramCache]: Analyzing trace with hash -1372123761, now seen corresponding path program 1 times [2024-10-14 06:21:08,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:08,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238573148] [2024-10-14 06:21:08,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:08,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:09,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:10,205 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 06:21:10,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:10,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [238573148] [2024-10-14 06:21:10,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [238573148] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:10,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:10,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 06:21:10,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855365893] [2024-10-14 06:21:10,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:10,206 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 06:21:10,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:10,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 06:21:10,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:21:10,211 INFO L87 Difference]: Start difference. First operand 2296 states and 3395 transitions. Second operand has 9 states, 9 states have (on average 29.444444444444443) internal successors, (265), 9 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:10,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:10,379 INFO L93 Difference]: Finished difference Result 2876 states and 4250 transitions. [2024-10-14 06:21:10,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 06:21:10,380 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 29.444444444444443) internal successors, (265), 9 states have internal predecessors, (265), 0 states have call successors, (0), 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 265 [2024-10-14 06:21:10,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:10,387 INFO L225 Difference]: With dead ends: 2876 [2024-10-14 06:21:10,388 INFO L226 Difference]: Without dead ends: 2316 [2024-10-14 06:21:10,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-10-14 06:21:10,390 INFO L432 NwaCegarLoop]: 696 mSDtfsCounter, 15 mSDsluCounter, 3461 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 4157 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:10,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 4157 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:21:10,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2316 states. [2024-10-14 06:21:10,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2316 to 2310. [2024-10-14 06:21:10,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2310 states, 2309 states have (on average 1.4785621481160676) internal successors, (3414), 2309 states have internal predecessors, (3414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:10,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2310 states to 2310 states and 3414 transitions. [2024-10-14 06:21:10,439 INFO L78 Accepts]: Start accepts. Automaton has 2310 states and 3414 transitions. Word has length 265 [2024-10-14 06:21:10,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:10,440 INFO L471 AbstractCegarLoop]: Abstraction has 2310 states and 3414 transitions. [2024-10-14 06:21:10,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 29.444444444444443) internal successors, (265), 9 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:10,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2310 states and 3414 transitions. [2024-10-14 06:21:10,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-10-14 06:21:10,448 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:10,449 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:10,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 06:21:10,449 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:10,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:10,450 INFO L85 PathProgramCache]: Analyzing trace with hash -2027782061, now seen corresponding path program 1 times [2024-10-14 06:21:10,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:10,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020397403] [2024-10-14 06:21:10,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:10,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:12,708 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:21:12,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:12,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020397403] [2024-10-14 06:21:12,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020397403] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:12,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:12,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 06:21:12,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145191874] [2024-10-14 06:21:12,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:12,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 06:21:12,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:12,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 06:21:12,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:21:12,712 INFO L87 Difference]: Start difference. First operand 2310 states and 3414 transitions. Second operand has 9 states, 9 states have (on average 29.444444444444443) internal successors, (265), 9 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:12,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:12,916 INFO L93 Difference]: Finished difference Result 5335 states and 7906 transitions. [2024-10-14 06:21:12,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 06:21:12,916 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 29.444444444444443) internal successors, (265), 9 states have internal predecessors, (265), 0 states have call successors, (0), 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 265 [2024-10-14 06:21:12,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:12,931 INFO L225 Difference]: With dead ends: 5335 [2024-10-14 06:21:12,931 INFO L226 Difference]: Without dead ends: 4012 [2024-10-14 06:21:12,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-10-14 06:21:12,937 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 1105 mSDsluCounter, 3920 mSDsCounter, 0 mSdLazyCounter, 151 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 4617 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:12,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1105 Valid, 4617 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 151 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:21:12,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4012 states. [2024-10-14 06:21:12,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4012 to 3533. [2024-10-14 06:21:13,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3533 states, 3532 states have (on average 1.4784824462061155) internal successors, (5222), 3532 states have internal predecessors, (5222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:13,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3533 states to 3533 states and 5222 transitions. [2024-10-14 06:21:13,022 INFO L78 Accepts]: Start accepts. Automaton has 3533 states and 5222 transitions. Word has length 265 [2024-10-14 06:21:13,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:13,023 INFO L471 AbstractCegarLoop]: Abstraction has 3533 states and 5222 transitions. [2024-10-14 06:21:13,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 29.444444444444443) internal successors, (265), 9 states have internal predecessors, (265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:13,028 INFO L276 IsEmpty]: Start isEmpty. Operand 3533 states and 5222 transitions. [2024-10-14 06:21:13,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-10-14 06:21:13,037 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:13,038 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:13,038 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-14 06:21:13,038 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:13,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:13,039 INFO L85 PathProgramCache]: Analyzing trace with hash -292455958, now seen corresponding path program 1 times [2024-10-14 06:21:13,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:13,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523667186] [2024-10-14 06:21:13,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:13,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:15,173 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:21:15,173 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:15,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523667186] [2024-10-14 06:21:15,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523667186] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:15,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:15,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-14 06:21:15,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409465813] [2024-10-14 06:21:15,174 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:15,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-14 06:21:15,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:15,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-14 06:21:15,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-14 06:21:15,177 INFO L87 Difference]: Start difference. First operand 3533 states and 5222 transitions. Second operand has 13 states, 13 states have (on average 20.46153846153846) internal successors, (266), 12 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:15,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:15,720 INFO L93 Difference]: Finished difference Result 9166 states and 13563 transitions. [2024-10-14 06:21:15,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 06:21:15,721 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 20.46153846153846) internal successors, (266), 12 states have internal predecessors, (266), 0 states have call successors, (0), 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 266 [2024-10-14 06:21:15,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:15,741 INFO L225 Difference]: With dead ends: 9166 [2024-10-14 06:21:15,742 INFO L226 Difference]: Without dead ends: 5824 [2024-10-14 06:21:15,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2024-10-14 06:21:15,750 INFO L432 NwaCegarLoop]: 818 mSDtfsCounter, 1705 mSDsluCounter, 7123 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1705 SdHoareTripleChecker+Valid, 7941 SdHoareTripleChecker+Invalid, 288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:15,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1705 Valid, 7941 Invalid, 288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 06:21:15,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5824 states. [2024-10-14 06:21:15,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5824 to 3721. [2024-10-14 06:21:15,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3721 states, 3720 states have (on average 1.4774193548387098) internal successors, (5496), 3720 states have internal predecessors, (5496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:15,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3721 states to 3721 states and 5496 transitions. [2024-10-14 06:21:15,849 INFO L78 Accepts]: Start accepts. Automaton has 3721 states and 5496 transitions. Word has length 266 [2024-10-14 06:21:15,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:15,850 INFO L471 AbstractCegarLoop]: Abstraction has 3721 states and 5496 transitions. [2024-10-14 06:21:15,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 20.46153846153846) internal successors, (266), 12 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:15,850 INFO L276 IsEmpty]: Start isEmpty. Operand 3721 states and 5496 transitions. [2024-10-14 06:21:15,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2024-10-14 06:21:15,860 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:15,860 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:15,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-14 06:21:15,861 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:15,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:15,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1003869194, now seen corresponding path program 1 times [2024-10-14 06:21:15,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:15,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437006663] [2024-10-14 06:21:15,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:15,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:16,453 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:21:16,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:16,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437006663] [2024-10-14 06:21:16,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437006663] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:16,454 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:16,454 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 06:21:16,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183987843] [2024-10-14 06:21:16,454 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:16,455 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 06:21:16,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:16,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 06:21:16,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:21:16,456 INFO L87 Difference]: Start difference. First operand 3721 states and 5496 transitions. Second operand has 6 states, 6 states have (on average 44.333333333333336) internal successors, (266), 6 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:16,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:16,518 INFO L93 Difference]: Finished difference Result 6369 states and 9415 transitions. [2024-10-14 06:21:16,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 06:21:16,519 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 44.333333333333336) internal successors, (266), 6 states have internal predecessors, (266), 0 states have call successors, (0), 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 266 [2024-10-14 06:21:16,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:16,528 INFO L225 Difference]: With dead ends: 6369 [2024-10-14 06:21:16,529 INFO L226 Difference]: Without dead ends: 3769 [2024-10-14 06:21:16,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:21:16,534 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 4 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2831 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:16,534 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2831 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:21:16,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3769 states. [2024-10-14 06:21:16,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3769 to 3769. [2024-10-14 06:21:16,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3769 states, 3768 states have (on average 1.4755838641188959) internal successors, (5560), 3768 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:16,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3769 states to 3769 states and 5560 transitions. [2024-10-14 06:21:16,605 INFO L78 Accepts]: Start accepts. Automaton has 3769 states and 5560 transitions. Word has length 266 [2024-10-14 06:21:16,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:16,605 INFO L471 AbstractCegarLoop]: Abstraction has 3769 states and 5560 transitions. [2024-10-14 06:21:16,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.333333333333336) internal successors, (266), 6 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:16,606 INFO L276 IsEmpty]: Start isEmpty. Operand 3769 states and 5560 transitions. [2024-10-14 06:21:16,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-10-14 06:21:16,614 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:16,614 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:16,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-14 06:21:16,614 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:16,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:16,615 INFO L85 PathProgramCache]: Analyzing trace with hash 122649598, now seen corresponding path program 1 times [2024-10-14 06:21:16,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:16,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052862684] [2024-10-14 06:21:16,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:16,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:17,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:18,914 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:21:18,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:18,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052862684] [2024-10-14 06:21:18,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052862684] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:18,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:18,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 06:21:18,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515331460] [2024-10-14 06:21:18,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:18,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 06:21:18,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:18,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 06:21:18,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:21:18,918 INFO L87 Difference]: Start difference. First operand 3769 states and 5560 transitions. Second operand has 9 states, 9 states have (on average 29.666666666666668) internal successors, (267), 8 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:19,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:19,055 INFO L93 Difference]: Finished difference Result 4793 states and 7073 transitions. [2024-10-14 06:21:19,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 06:21:19,056 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 29.666666666666668) internal successors, (267), 8 states have internal predecessors, (267), 0 states have call successors, (0), 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 267 [2024-10-14 06:21:19,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:19,067 INFO L225 Difference]: With dead ends: 4793 [2024-10-14 06:21:19,068 INFO L226 Difference]: Without dead ends: 3908 [2024-10-14 06:21:19,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-14 06:21:19,071 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 880 mSDsluCounter, 4598 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 5298 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:19,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 5298 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:21:19,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3908 states. [2024-10-14 06:21:19,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3908 to 3791. [2024-10-14 06:21:19,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3791 states, 3790 states have (on average 1.474934036939314) internal successors, (5590), 3790 states have internal predecessors, (5590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:19,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3791 states to 3791 states and 5590 transitions. [2024-10-14 06:21:19,144 INFO L78 Accepts]: Start accepts. Automaton has 3791 states and 5590 transitions. Word has length 267 [2024-10-14 06:21:19,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:19,145 INFO L471 AbstractCegarLoop]: Abstraction has 3791 states and 5590 transitions. [2024-10-14 06:21:19,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 29.666666666666668) internal successors, (267), 8 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:19,146 INFO L276 IsEmpty]: Start isEmpty. Operand 3791 states and 5590 transitions. [2024-10-14 06:21:19,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-10-14 06:21:19,152 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:19,152 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:19,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-14 06:21:19,153 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:19,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:19,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1182747848, now seen corresponding path program 1 times [2024-10-14 06:21:19,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:19,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624439377] [2024-10-14 06:21:19,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:19,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:19,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:20,915 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:21:20,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:20,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624439377] [2024-10-14 06:21:20,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624439377] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:20,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:20,915 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 06:21:20,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662032444] [2024-10-14 06:21:20,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:20,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 06:21:20,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:20,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 06:21:20,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:21:20,919 INFO L87 Difference]: Start difference. First operand 3791 states and 5590 transitions. Second operand has 7 states, 7 states have (on average 38.285714285714285) internal successors, (268), 6 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:21,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:21,066 INFO L93 Difference]: Finished difference Result 9501 states and 14027 transitions. [2024-10-14 06:21:21,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 06:21:21,066 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 38.285714285714285) internal successors, (268), 6 states have internal predecessors, (268), 0 states have call successors, (0), 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 268 [2024-10-14 06:21:21,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:21,084 INFO L225 Difference]: With dead ends: 9501 [2024-10-14 06:21:21,084 INFO L226 Difference]: Without dead ends: 6019 [2024-10-14 06:21:21,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-14 06:21:21,092 INFO L432 NwaCegarLoop]: 695 mSDtfsCounter, 428 mSDsluCounter, 3469 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 4164 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:21,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 4164 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:21:21,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6019 states. [2024-10-14 06:21:21,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6019 to 4047. [2024-10-14 06:21:21,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4047 states, 4046 states have (on average 1.4735541275333663) internal successors, (5962), 4046 states have internal predecessors, (5962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:21,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4047 states to 4047 states and 5962 transitions. [2024-10-14 06:21:21,172 INFO L78 Accepts]: Start accepts. Automaton has 4047 states and 5962 transitions. Word has length 268 [2024-10-14 06:21:21,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:21,172 INFO L471 AbstractCegarLoop]: Abstraction has 4047 states and 5962 transitions. [2024-10-14 06:21:21,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 38.285714285714285) internal successors, (268), 6 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:21,173 INFO L276 IsEmpty]: Start isEmpty. Operand 4047 states and 5962 transitions. [2024-10-14 06:21:21,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-10-14 06:21:21,181 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:21,181 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:21,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-14 06:21:21,182 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:21,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:21,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1430165259, now seen corresponding path program 1 times [2024-10-14 06:21:21,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:21,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854925453] [2024-10-14 06:21:21,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:21,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:23,186 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:21:23,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:23,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854925453] [2024-10-14 06:21:23,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854925453] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:23,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:23,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 06:21:23,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629937471] [2024-10-14 06:21:23,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:23,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 06:21:23,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:23,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 06:21:23,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:21:23,189 INFO L87 Difference]: Start difference. First operand 4047 states and 5962 transitions. Second operand has 9 states, 9 states have (on average 29.77777777777778) internal successors, (268), 9 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:23,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:23,341 INFO L93 Difference]: Finished difference Result 5796 states and 8550 transitions. [2024-10-14 06:21:23,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 06:21:23,342 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 29.77777777777778) internal successors, (268), 9 states have internal predecessors, (268), 0 states have call successors, (0), 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 268 [2024-10-14 06:21:23,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:23,353 INFO L225 Difference]: With dead ends: 5796 [2024-10-14 06:21:23,353 INFO L226 Difference]: Without dead ends: 4574 [2024-10-14 06:21:23,357 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:21:23,357 INFO L432 NwaCegarLoop]: 696 mSDtfsCounter, 1024 mSDsluCounter, 3684 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 4380 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:23,358 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1024 Valid, 4380 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:21:23,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4574 states. [2024-10-14 06:21:23,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4574 to 4566. [2024-10-14 06:21:23,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4566 states, 4565 states have (on average 1.4725082146768893) internal successors, (6722), 4565 states have internal predecessors, (6722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:23,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4566 states to 4566 states and 6722 transitions. [2024-10-14 06:21:23,444 INFO L78 Accepts]: Start accepts. Automaton has 4566 states and 6722 transitions. Word has length 268 [2024-10-14 06:21:23,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:23,444 INFO L471 AbstractCegarLoop]: Abstraction has 4566 states and 6722 transitions. [2024-10-14 06:21:23,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 29.77777777777778) internal successors, (268), 9 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:23,445 INFO L276 IsEmpty]: Start isEmpty. Operand 4566 states and 6722 transitions. [2024-10-14 06:21:23,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2024-10-14 06:21:23,454 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:23,454 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:23,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-14 06:21:23,455 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:23,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:23,456 INFO L85 PathProgramCache]: Analyzing trace with hash 180656694, now seen corresponding path program 1 times [2024-10-14 06:21:23,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:23,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673826925] [2024-10-14 06:21:23,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:23,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:23,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:23,965 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:21:23,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:23,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673826925] [2024-10-14 06:21:23,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673826925] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:23,966 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:23,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 06:21:23,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490494873] [2024-10-14 06:21:23,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:23,967 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 06:21:23,967 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:23,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 06:21:23,968 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:21:23,968 INFO L87 Difference]: Start difference. First operand 4566 states and 6722 transitions. Second operand has 6 states, 6 states have (on average 44.666666666666664) internal successors, (268), 6 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:24,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:24,023 INFO L93 Difference]: Finished difference Result 7470 states and 11010 transitions. [2024-10-14 06:21:24,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 06:21:24,023 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 44.666666666666664) internal successors, (268), 6 states have internal predecessors, (268), 0 states have call successors, (0), 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 268 [2024-10-14 06:21:24,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:24,032 INFO L225 Difference]: With dead ends: 7470 [2024-10-14 06:21:24,032 INFO L226 Difference]: Without dead ends: 4580 [2024-10-14 06:21:24,036 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 06:21:24,037 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 4 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2831 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:24,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2831 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:21:24,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4580 states. [2024-10-14 06:21:24,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4580 to 4580. [2024-10-14 06:21:24,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4580 states, 4579 states have (on average 1.4715003275824416) internal successors, (6738), 4579 states have internal predecessors, (6738), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:24,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4580 states to 4580 states and 6738 transitions. [2024-10-14 06:21:24,098 INFO L78 Accepts]: Start accepts. Automaton has 4580 states and 6738 transitions. Word has length 268 [2024-10-14 06:21:24,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:24,098 INFO L471 AbstractCegarLoop]: Abstraction has 4580 states and 6738 transitions. [2024-10-14 06:21:24,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.666666666666664) internal successors, (268), 6 states have internal predecessors, (268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:24,099 INFO L276 IsEmpty]: Start isEmpty. Operand 4580 states and 6738 transitions. [2024-10-14 06:21:24,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-10-14 06:21:24,106 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:24,107 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:24,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-14 06:21:24,107 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:24,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:24,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1277489813, now seen corresponding path program 1 times [2024-10-14 06:21:24,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:24,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622906519] [2024-10-14 06:21:24,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:24,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:24,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:25,422 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 06:21:25,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:25,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622906519] [2024-10-14 06:21:25,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622906519] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:25,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:25,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 06:21:25,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51179244] [2024-10-14 06:21:25,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:25,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 06:21:25,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:25,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 06:21:25,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-10-14 06:21:25,428 INFO L87 Difference]: Start difference. First operand 4580 states and 6738 transitions. Second operand has 10 states, 10 states have (on average 26.9) internal successors, (269), 10 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:25,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:25,819 INFO L93 Difference]: Finished difference Result 6454 states and 9502 transitions. [2024-10-14 06:21:25,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 06:21:25,819 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 26.9) internal successors, (269), 10 states have internal predecessors, (269), 0 states have call successors, (0), 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 269 [2024-10-14 06:21:25,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:25,834 INFO L225 Difference]: With dead ends: 6454 [2024-10-14 06:21:25,834 INFO L226 Difference]: Without dead ends: 5496 [2024-10-14 06:21:25,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=281, Unknown=0, NotChecked=0, Total=342 [2024-10-14 06:21:25,839 INFO L432 NwaCegarLoop]: 1329 mSDtfsCounter, 672 mSDsluCounter, 9959 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 672 SdHoareTripleChecker+Valid, 11288 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:25,839 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [672 Valid, 11288 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 06:21:25,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5496 states. [2024-10-14 06:21:25,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5496 to 4583. [2024-10-14 06:21:25,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4583 states, 4582 states have (on average 1.4714098646879092) internal successors, (6742), 4582 states have internal predecessors, (6742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:25,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4583 states to 4583 states and 6742 transitions. [2024-10-14 06:21:25,911 INFO L78 Accepts]: Start accepts. Automaton has 4583 states and 6742 transitions. Word has length 269 [2024-10-14 06:21:25,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:25,912 INFO L471 AbstractCegarLoop]: Abstraction has 4583 states and 6742 transitions. [2024-10-14 06:21:25,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 26.9) internal successors, (269), 10 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:25,913 INFO L276 IsEmpty]: Start isEmpty. Operand 4583 states and 6742 transitions. [2024-10-14 06:21:25,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-10-14 06:21:25,923 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:25,924 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:25,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-14 06:21:25,924 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:25,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:25,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1664096170, now seen corresponding path program 1 times [2024-10-14 06:21:25,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:25,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [906112479] [2024-10-14 06:21:25,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:25,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:26,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:27,649 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:21:27,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:27,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [906112479] [2024-10-14 06:21:27,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [906112479] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:27,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:27,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 06:21:27,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240619540] [2024-10-14 06:21:27,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:27,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 06:21:27,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:27,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 06:21:27,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-14 06:21:27,652 INFO L87 Difference]: Start difference. First operand 4583 states and 6742 transitions. Second operand has 10 states, 10 states have (on average 26.9) internal successors, (269), 10 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:27,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:27,776 INFO L93 Difference]: Finished difference Result 5780 states and 8488 transitions. [2024-10-14 06:21:27,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 06:21:27,776 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 26.9) internal successors, (269), 10 states have internal predecessors, (269), 0 states have call successors, (0), 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 269 [2024-10-14 06:21:27,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:27,788 INFO L225 Difference]: With dead ends: 5780 [2024-10-14 06:21:27,789 INFO L226 Difference]: Without dead ends: 4761 [2024-10-14 06:21:27,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-14 06:21:27,793 INFO L432 NwaCegarLoop]: 728 mSDtfsCounter, 141 mSDsluCounter, 4374 mSDsCounter, 0 mSdLazyCounter, 116 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 5102 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:27,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 5102 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 116 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:21:27,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4761 states. [2024-10-14 06:21:27,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4761 to 4716. [2024-10-14 06:21:27,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4716 states, 4715 states have (on average 1.4693531283138919) internal successors, (6928), 4715 states have internal predecessors, (6928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:27,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4716 states to 4716 states and 6928 transitions. [2024-10-14 06:21:27,864 INFO L78 Accepts]: Start accepts. Automaton has 4716 states and 6928 transitions. Word has length 269 [2024-10-14 06:21:27,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:27,864 INFO L471 AbstractCegarLoop]: Abstraction has 4716 states and 6928 transitions. [2024-10-14 06:21:27,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 26.9) internal successors, (269), 10 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:27,865 INFO L276 IsEmpty]: Start isEmpty. Operand 4716 states and 6928 transitions. [2024-10-14 06:21:27,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-10-14 06:21:27,872 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:27,872 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:27,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-14 06:21:27,872 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:27,873 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:27,873 INFO L85 PathProgramCache]: Analyzing trace with hash -519193032, now seen corresponding path program 1 times [2024-10-14 06:21:27,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:27,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663888187] [2024-10-14 06:21:27,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:27,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:28,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:28,340 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:21:28,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:28,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663888187] [2024-10-14 06:21:28,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663888187] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:28,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:28,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:21:28,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415438645] [2024-10-14 06:21:28,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:28,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:21:28,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:28,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:21:28,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:21:28,346 INFO L87 Difference]: Start difference. First operand 4716 states and 6928 transitions. Second operand has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:28,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:28,377 INFO L93 Difference]: Finished difference Result 5868 states and 8618 transitions. [2024-10-14 06:21:28,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 06:21:28,377 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 0 states have call successors, (0), 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 269 [2024-10-14 06:21:28,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:28,388 INFO L225 Difference]: With dead ends: 5868 [2024-10-14 06:21:28,388 INFO L226 Difference]: Without dead ends: 4838 [2024-10-14 06:21:28,391 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:21:28,392 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 34 mSDsluCounter, 2122 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 2832 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:28,392 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 2832 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:21:28,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4838 states. [2024-10-14 06:21:28,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4838 to 4838. [2024-10-14 06:21:28,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4838 states, 4837 states have (on average 1.4674384949348769) internal successors, (7098), 4837 states have internal predecessors, (7098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:28,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4838 states to 4838 states and 7098 transitions. [2024-10-14 06:21:28,458 INFO L78 Accepts]: Start accepts. Automaton has 4838 states and 7098 transitions. Word has length 269 [2024-10-14 06:21:28,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:28,459 INFO L471 AbstractCegarLoop]: Abstraction has 4838 states and 7098 transitions. [2024-10-14 06:21:28,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:28,459 INFO L276 IsEmpty]: Start isEmpty. Operand 4838 states and 7098 transitions. [2024-10-14 06:21:28,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2024-10-14 06:21:28,466 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:28,467 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:28,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-14 06:21:28,467 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:28,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:28,467 INFO L85 PathProgramCache]: Analyzing trace with hash 263082047, now seen corresponding path program 1 times [2024-10-14 06:21:28,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:28,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832794540] [2024-10-14 06:21:28,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:28,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:29,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:29,556 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:21:29,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:29,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832794540] [2024-10-14 06:21:29,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832794540] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:29,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:29,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 06:21:29,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92607401] [2024-10-14 06:21:29,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:29,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 06:21:29,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:29,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 06:21:29,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:21:29,558 INFO L87 Difference]: Start difference. First operand 4838 states and 7098 transitions. Second operand has 7 states, 7 states have (on average 38.42857142857143) internal successors, (269), 6 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:29,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:29,633 INFO L93 Difference]: Finished difference Result 5968 states and 8762 transitions. [2024-10-14 06:21:29,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 06:21:29,634 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 38.42857142857143) internal successors, (269), 6 states have internal predecessors, (269), 0 states have call successors, (0), 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 269 [2024-10-14 06:21:29,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:29,642 INFO L225 Difference]: With dead ends: 5968 [2024-10-14 06:21:29,642 INFO L226 Difference]: Without dead ends: 4858 [2024-10-14 06:21:29,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:21:29,645 INFO L432 NwaCegarLoop]: 698 mSDtfsCounter, 475 mSDsluCounter, 2784 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 475 SdHoareTripleChecker+Valid, 3482 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:29,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [475 Valid, 3482 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:21:29,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4858 states. [2024-10-14 06:21:29,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4858 to 4858. [2024-10-14 06:21:29,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4858 states, 4857 states have (on average 1.4663372452130945) internal successors, (7122), 4857 states have internal predecessors, (7122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:29,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4858 states to 4858 states and 7122 transitions. [2024-10-14 06:21:29,711 INFO L78 Accepts]: Start accepts. Automaton has 4858 states and 7122 transitions. Word has length 269 [2024-10-14 06:21:29,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:29,712 INFO L471 AbstractCegarLoop]: Abstraction has 4858 states and 7122 transitions. [2024-10-14 06:21:29,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 38.42857142857143) internal successors, (269), 6 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:29,712 INFO L276 IsEmpty]: Start isEmpty. Operand 4858 states and 7122 transitions. [2024-10-14 06:21:29,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-10-14 06:21:29,719 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:29,720 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:29,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-14 06:21:29,720 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:29,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:29,720 INFO L85 PathProgramCache]: Analyzing trace with hash -775003089, now seen corresponding path program 1 times [2024-10-14 06:21:29,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:29,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017849845] [2024-10-14 06:21:29,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:29,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:30,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:30,757 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:21:30,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:30,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017849845] [2024-10-14 06:21:30,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017849845] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:30,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:30,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 06:21:30,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067860974] [2024-10-14 06:21:30,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:30,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 06:21:30,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:30,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 06:21:30,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:21:30,760 INFO L87 Difference]: Start difference. First operand 4858 states and 7122 transitions. Second operand has 7 states, 7 states have (on average 38.57142857142857) internal successors, (270), 6 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:30,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:30,831 INFO L93 Difference]: Finished difference Result 6196 states and 9065 transitions. [2024-10-14 06:21:30,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 06:21:30,832 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 38.57142857142857) internal successors, (270), 6 states have internal predecessors, (270), 0 states have call successors, (0), 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 270 [2024-10-14 06:21:30,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:30,838 INFO L225 Difference]: With dead ends: 6196 [2024-10-14 06:21:30,838 INFO L226 Difference]: Without dead ends: 4878 [2024-10-14 06:21:30,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 06:21:30,841 INFO L432 NwaCegarLoop]: 698 mSDtfsCounter, 504 mSDsluCounter, 2784 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 3482 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:30,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 3482 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:21:30,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4878 states. [2024-10-14 06:21:30,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4878 to 4878. [2024-10-14 06:21:30,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4878 states, 4877 states have (on average 1.4652450276809514) internal successors, (7146), 4877 states have internal predecessors, (7146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:30,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4878 states to 4878 states and 7146 transitions. [2024-10-14 06:21:30,924 INFO L78 Accepts]: Start accepts. Automaton has 4878 states and 7146 transitions. Word has length 270 [2024-10-14 06:21:30,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:30,925 INFO L471 AbstractCegarLoop]: Abstraction has 4878 states and 7146 transitions. [2024-10-14 06:21:30,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 38.57142857142857) internal successors, (270), 6 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:30,925 INFO L276 IsEmpty]: Start isEmpty. Operand 4878 states and 7146 transitions. [2024-10-14 06:21:30,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-10-14 06:21:30,932 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:30,932 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:30,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-10-14 06:21:30,932 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:30,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:30,933 INFO L85 PathProgramCache]: Analyzing trace with hash 1266824929, now seen corresponding path program 1 times [2024-10-14 06:21:30,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:30,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871603220] [2024-10-14 06:21:30,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:30,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:34,569 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:21:34,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:34,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871603220] [2024-10-14 06:21:34,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871603220] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:34,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:34,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-10-14 06:21:34,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292761654] [2024-10-14 06:21:34,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:34,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 06:21:34,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:34,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 06:21:34,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2024-10-14 06:21:34,573 INFO L87 Difference]: Start difference. First operand 4878 states and 7146 transitions. Second operand has 16 states, 16 states have (on average 16.875) internal successors, (270), 15 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:35,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:35,053 INFO L93 Difference]: Finished difference Result 11651 states and 17111 transitions. [2024-10-14 06:21:35,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 06:21:35,054 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 16.875) internal successors, (270), 15 states have internal predecessors, (270), 0 states have call successors, (0), 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 270 [2024-10-14 06:21:35,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:35,061 INFO L225 Difference]: With dead ends: 11651 [2024-10-14 06:21:35,061 INFO L226 Difference]: Without dead ends: 7358 [2024-10-14 06:21:35,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2024-10-14 06:21:35,068 INFO L432 NwaCegarLoop]: 680 mSDtfsCounter, 516 mSDsluCounter, 7338 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 516 SdHoareTripleChecker+Valid, 8018 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:35,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [516 Valid, 8018 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 06:21:35,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7358 states. [2024-10-14 06:21:35,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7358 to 4962. [2024-10-14 06:21:35,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4962 states, 4961 states have (on average 1.4613989115097763) internal successors, (7250), 4961 states have internal predecessors, (7250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:35,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4962 states to 4962 states and 7250 transitions. [2024-10-14 06:21:35,155 INFO L78 Accepts]: Start accepts. Automaton has 4962 states and 7250 transitions. Word has length 270 [2024-10-14 06:21:35,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:35,156 INFO L471 AbstractCegarLoop]: Abstraction has 4962 states and 7250 transitions. [2024-10-14 06:21:35,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 16.875) internal successors, (270), 15 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:35,156 INFO L276 IsEmpty]: Start isEmpty. Operand 4962 states and 7250 transitions. [2024-10-14 06:21:35,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-10-14 06:21:35,164 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:35,164 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:35,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-10-14 06:21:35,164 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:35,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:35,165 INFO L85 PathProgramCache]: Analyzing trace with hash -2003257161, now seen corresponding path program 1 times [2024-10-14 06:21:35,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:35,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153813844] [2024-10-14 06:21:35,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:35,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:39,726 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:21:39,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:39,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153813844] [2024-10-14 06:21:39,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153813844] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:39,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:39,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-10-14 06:21:39,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286516730] [2024-10-14 06:21:39,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:39,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-14 06:21:39,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:39,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-14 06:21:39,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=292, Unknown=0, NotChecked=0, Total=342 [2024-10-14 06:21:39,729 INFO L87 Difference]: Start difference. First operand 4962 states and 7250 transitions. Second operand has 19 states, 19 states have (on average 14.263157894736842) internal successors, (271), 18 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:40,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:40,302 INFO L93 Difference]: Finished difference Result 14199 states and 20863 transitions. [2024-10-14 06:21:40,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-14 06:21:40,303 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 14.263157894736842) internal successors, (271), 18 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 271 [2024-10-14 06:21:40,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:40,315 INFO L225 Difference]: With dead ends: 14199 [2024-10-14 06:21:40,315 INFO L226 Difference]: Without dead ends: 9750 [2024-10-14 06:21:40,323 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=99, Invalid=603, Unknown=0, NotChecked=0, Total=702 [2024-10-14 06:21:40,323 INFO L432 NwaCegarLoop]: 676 mSDtfsCounter, 2264 mSDsluCounter, 9556 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2264 SdHoareTripleChecker+Valid, 10232 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:40,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2264 Valid, 10232 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 06:21:40,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9750 states. [2024-10-14 06:21:40,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9750 to 7394. [2024-10-14 06:21:40,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7394 states, 7393 states have (on average 1.4627350196131477) internal successors, (10814), 7393 states have internal predecessors, (10814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:40,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7394 states to 7394 states and 10814 transitions. [2024-10-14 06:21:40,438 INFO L78 Accepts]: Start accepts. Automaton has 7394 states and 10814 transitions. Word has length 271 [2024-10-14 06:21:40,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:40,438 INFO L471 AbstractCegarLoop]: Abstraction has 7394 states and 10814 transitions. [2024-10-14 06:21:40,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 14.263157894736842) internal successors, (271), 18 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:40,439 INFO L276 IsEmpty]: Start isEmpty. Operand 7394 states and 10814 transitions. [2024-10-14 06:21:40,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-10-14 06:21:40,449 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:40,450 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:40,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-10-14 06:21:40,450 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:40,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:40,450 INFO L85 PathProgramCache]: Analyzing trace with hash -72009648, now seen corresponding path program 1 times [2024-10-14 06:21:40,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:40,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101022217] [2024-10-14 06:21:40,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:40,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:41,006 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:21:41,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:41,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101022217] [2024-10-14 06:21:41,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101022217] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:41,007 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:41,007 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 06:21:41,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041612952] [2024-10-14 06:21:41,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:41,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 06:21:41,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:41,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 06:21:41,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:21:41,009 INFO L87 Difference]: Start difference. First operand 7394 states and 10814 transitions. Second operand has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:41,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:41,050 INFO L93 Difference]: Finished difference Result 11593 states and 16981 transitions. [2024-10-14 06:21:41,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 06:21:41,050 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 271 [2024-10-14 06:21:41,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:41,060 INFO L225 Difference]: With dead ends: 11593 [2024-10-14 06:21:41,060 INFO L226 Difference]: Without dead ends: 7478 [2024-10-14 06:21:41,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 06:21:41,068 INFO L432 NwaCegarLoop]: 710 mSDtfsCounter, 4 mSDsluCounter, 2121 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2831 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:41,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2831 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 06:21:41,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7478 states. [2024-10-14 06:21:41,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7478 to 7478. [2024-10-14 06:21:41,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7478 states, 7477 states have (on average 1.4612812625384513) internal successors, (10926), 7477 states have internal predecessors, (10926), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:41,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7478 states to 7478 states and 10926 transitions. [2024-10-14 06:21:41,167 INFO L78 Accepts]: Start accepts. Automaton has 7478 states and 10926 transitions. Word has length 271 [2024-10-14 06:21:41,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:41,167 INFO L471 AbstractCegarLoop]: Abstraction has 7478 states and 10926 transitions. [2024-10-14 06:21:41,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:41,168 INFO L276 IsEmpty]: Start isEmpty. Operand 7478 states and 10926 transitions. [2024-10-14 06:21:41,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-10-14 06:21:41,178 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:41,178 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:41,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-10-14 06:21:41,179 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:41,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:41,179 INFO L85 PathProgramCache]: Analyzing trace with hash 2013440829, now seen corresponding path program 1 times [2024-10-14 06:21:41,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:41,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856711585] [2024-10-14 06:21:41,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:41,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:41,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:42,708 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:21:42,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:42,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856711585] [2024-10-14 06:21:42,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856711585] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:42,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:42,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-14 06:21:42,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391956360] [2024-10-14 06:21:42,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:42,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-14 06:21:42,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:42,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-14 06:21:42,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-14 06:21:42,711 INFO L87 Difference]: Start difference. First operand 7478 states and 10926 transitions. Second operand has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:42,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:42,866 INFO L93 Difference]: Finished difference Result 10999 states and 16071 transitions. [2024-10-14 06:21:42,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-14 06:21:42,867 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 271 [2024-10-14 06:21:42,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:42,875 INFO L225 Difference]: With dead ends: 10999 [2024-10-14 06:21:42,875 INFO L226 Difference]: Without dead ends: 7558 [2024-10-14 06:21:42,878 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-10-14 06:21:42,879 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 622 mSDsluCounter, 4341 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 5038 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:42,879 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [622 Valid, 5038 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:21:42,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7558 states. [2024-10-14 06:21:42,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7558 to 7540. [2024-10-14 06:21:42,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7540 states, 7539 states have (on average 1.4604058893752487) internal successors, (11010), 7539 states have internal predecessors, (11010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:42,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7540 states to 7540 states and 11010 transitions. [2024-10-14 06:21:42,969 INFO L78 Accepts]: Start accepts. Automaton has 7540 states and 11010 transitions. Word has length 271 [2024-10-14 06:21:42,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:42,970 INFO L471 AbstractCegarLoop]: Abstraction has 7540 states and 11010 transitions. [2024-10-14 06:21:42,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:42,971 INFO L276 IsEmpty]: Start isEmpty. Operand 7540 states and 11010 transitions. [2024-10-14 06:21:42,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-10-14 06:21:42,980 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:42,981 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:42,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-10-14 06:21:42,981 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:42,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:42,982 INFO L85 PathProgramCache]: Analyzing trace with hash 468510138, now seen corresponding path program 1 times [2024-10-14 06:21:42,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:42,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964635530] [2024-10-14 06:21:42,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:42,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:43,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:44,265 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:21:44,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:44,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964635530] [2024-10-14 06:21:44,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964635530] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:44,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:44,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 06:21:44,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127357854] [2024-10-14 06:21:44,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:44,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 06:21:44,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:44,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 06:21:44,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-10-14 06:21:44,268 INFO L87 Difference]: Start difference. First operand 7540 states and 11010 transitions. Second operand has 9 states, 9 states have (on average 30.11111111111111) internal successors, (271), 8 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:44,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:44,461 INFO L93 Difference]: Finished difference Result 14715 states and 21552 transitions. [2024-10-14 06:21:44,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 06:21:44,462 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 30.11111111111111) internal successors, (271), 8 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 271 [2024-10-14 06:21:44,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:44,473 INFO L225 Difference]: With dead ends: 14715 [2024-10-14 06:21:44,474 INFO L226 Difference]: Without dead ends: 10458 [2024-10-14 06:21:44,480 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2024-10-14 06:21:44,481 INFO L432 NwaCegarLoop]: 1088 mSDtfsCounter, 1438 mSDsluCounter, 4970 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1438 SdHoareTripleChecker+Valid, 6058 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:44,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1438 Valid, 6058 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 06:21:44,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10458 states. [2024-10-14 06:21:44,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10458 to 7650. [2024-10-14 06:21:44,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7650 states, 7649 states have (on average 1.4603216106680612) internal successors, (11170), 7649 states have internal predecessors, (11170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:44,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7650 states to 7650 states and 11170 transitions. [2024-10-14 06:21:44,585 INFO L78 Accepts]: Start accepts. Automaton has 7650 states and 11170 transitions. Word has length 271 [2024-10-14 06:21:44,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:44,585 INFO L471 AbstractCegarLoop]: Abstraction has 7650 states and 11170 transitions. [2024-10-14 06:21:44,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 30.11111111111111) internal successors, (271), 8 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:44,586 INFO L276 IsEmpty]: Start isEmpty. Operand 7650 states and 11170 transitions. [2024-10-14 06:21:44,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-10-14 06:21:44,595 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:44,596 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:44,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-10-14 06:21:44,596 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:44,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:44,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1886711616, now seen corresponding path program 1 times [2024-10-14 06:21:44,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:44,597 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243620297] [2024-10-14 06:21:44,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:44,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 06:21:45,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 06:21:46,923 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 06:21:46,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 06:21:46,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243620297] [2024-10-14 06:21:46,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243620297] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 06:21:46,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 06:21:46,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-10-14 06:21:46,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197731903] [2024-10-14 06:21:46,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 06:21:46,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-14 06:21:46,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 06:21:46,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-14 06:21:46,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2024-10-14 06:21:46,925 INFO L87 Difference]: Start difference. First operand 7650 states and 11170 transitions. Second operand has 16 states, 16 states have (on average 17.0) internal successors, (272), 16 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:47,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 06:21:47,293 INFO L93 Difference]: Finished difference Result 8954 states and 13064 transitions. [2024-10-14 06:21:47,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-14 06:21:47,294 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 17.0) internal successors, (272), 16 states have internal predecessors, (272), 0 states have call successors, (0), 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 272 [2024-10-14 06:21:47,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 06:21:47,300 INFO L225 Difference]: With dead ends: 8954 [2024-10-14 06:21:47,301 INFO L226 Difference]: Without dead ends: 7745 [2024-10-14 06:21:47,302 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2024-10-14 06:21:47,303 INFO L432 NwaCegarLoop]: 753 mSDtfsCounter, 146 mSDsluCounter, 10451 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 11204 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 06:21:47,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 11204 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 06:21:47,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7745 states. [2024-10-14 06:21:47,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7745 to 7667. [2024-10-14 06:21:47,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7667 states, 7666 states have (on average 1.4596921471432298) internal successors, (11190), 7666 states have internal predecessors, (11190), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:47,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7667 states to 7667 states and 11190 transitions. [2024-10-14 06:21:47,378 INFO L78 Accepts]: Start accepts. Automaton has 7667 states and 11190 transitions. Word has length 272 [2024-10-14 06:21:47,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 06:21:47,378 INFO L471 AbstractCegarLoop]: Abstraction has 7667 states and 11190 transitions. [2024-10-14 06:21:47,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 17.0) internal successors, (272), 16 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 06:21:47,379 INFO L276 IsEmpty]: Start isEmpty. Operand 7667 states and 11190 transitions. [2024-10-14 06:21:47,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 273 [2024-10-14 06:21:47,392 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 06:21:47,393 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 06:21:47,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-14 06:21:47,393 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 06:21:47,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 06:21:47,393 INFO L85 PathProgramCache]: Analyzing trace with hash -228245861, now seen corresponding path program 1 times [2024-10-14 06:21:47,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 06:21:47,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294549155] [2024-10-14 06:21:47,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 06:21:47,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms