./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-27.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-27.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a5c5d56cba99a6aed857c914dae8c8b6ecbf5d7f26fcada2d40cfcad19c68691 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 23:07:57,218 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 23:07:57,280 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 23:07:57,284 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 23:07:57,284 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 23:07:57,312 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 23:07:57,313 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 23:07:57,313 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 23:07:57,314 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 23:07:57,315 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 23:07:57,316 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 23:07:57,316 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 23:07:57,316 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 23:07:57,317 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 23:07:57,317 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 23:07:57,319 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 23:07:57,319 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 23:07:57,319 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 23:07:57,320 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 23:07:57,320 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 23:07:57,320 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 23:07:57,321 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 23:07:57,321 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 23:07:57,321 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 23:07:57,322 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 23:07:57,322 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 23:07:57,322 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 23:07:57,323 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 23:07:57,323 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 23:07:57,323 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 23:07:57,324 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 23:07:57,324 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 23:07:57,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 23:07:57,325 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 23:07:57,325 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 23:07:57,325 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 23:07:57,326 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 23:07:57,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 23:07:57,326 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 23:07:57,326 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 23:07:57,327 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 23:07:57,327 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 23:07:57,327 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5c5d56cba99a6aed857c914dae8c8b6ecbf5d7f26fcada2d40cfcad19c68691 [2024-11-08 23:07:57,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 23:07:57,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 23:07:57,605 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 23:07:57,606 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 23:07:57,606 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 23:07:57,607 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-27.i [2024-11-08 23:07:58,998 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 23:07:59,197 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 23:07:59,198 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-27.i [2024-11-08 23:07:59,208 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa378a6d4/0fc9157c9e164f07bbc6eef351888364/FLAG4ca17fcd5 [2024-11-08 23:07:59,577 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa378a6d4/0fc9157c9e164f07bbc6eef351888364 [2024-11-08 23:07:59,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 23:07:59,580 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 23:07:59,581 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 23:07:59,581 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 23:07:59,586 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 23:07:59,586 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:07:59" (1/1) ... [2024-11-08 23:07:59,587 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@610fc501 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:07:59, skipping insertion in model container [2024-11-08 23:07:59,588 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 11:07:59" (1/1) ... [2024-11-08 23:07:59,614 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 23:07:59,777 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-27.i[916,929] [2024-11-08 23:07:59,812 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:07:59,822 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 23:07:59,832 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-27.i[916,929] [2024-11-08 23:07:59,848 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 23:07:59,863 INFO L204 MainTranslator]: Completed translation [2024-11-08 23:07:59,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:07:59 WrapperNode [2024-11-08 23:07:59,864 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 23:07:59,865 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 23:07:59,865 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 23:07:59,865 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 23:07:59,871 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:07:59" (1/1) ... [2024-11-08 23:07:59,877 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:07:59" (1/1) ... [2024-11-08 23:07:59,900 INFO L138 Inliner]: procedures = 26, calls = 30, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 108 [2024-11-08 23:07:59,900 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 23:07:59,901 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 23:07:59,901 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 23:07:59,901 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 23:07:59,910 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:07:59" (1/1) ... [2024-11-08 23:07:59,914 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:07:59" (1/1) ... [2024-11-08 23:07:59,920 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:07:59" (1/1) ... [2024-11-08 23:07:59,941 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 23:07:59,941 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:07:59" (1/1) ... [2024-11-08 23:07:59,941 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:07:59" (1/1) ... [2024-11-08 23:07:59,950 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:07:59" (1/1) ... [2024-11-08 23:07:59,953 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:07:59" (1/1) ... [2024-11-08 23:07:59,954 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:07:59" (1/1) ... [2024-11-08 23:07:59,955 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:07:59" (1/1) ... [2024-11-08 23:07:59,957 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 23:07:59,958 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 23:07:59,958 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 23:07:59,958 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 23:07:59,959 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:07:59" (1/1) ... [2024-11-08 23:07:59,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 23:07:59,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 23:07:59,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 23:08:00,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 23:08:00,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 23:08:00,046 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-08 23:08:00,047 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-08 23:08:00,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 23:08:00,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 23:08:00,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 23:08:00,136 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 23:08:00,142 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 23:08:00,430 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-08 23:08:00,430 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 23:08:00,442 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 23:08:00,443 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 23:08:00,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:08:00 BoogieIcfgContainer [2024-11-08 23:08:00,443 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 23:08:00,445 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 23:08:00,446 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 23:08:00,451 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 23:08:00,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 11:07:59" (1/3) ... [2024-11-08 23:08:00,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a81769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:08:00, skipping insertion in model container [2024-11-08 23:08:00,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 11:07:59" (2/3) ... [2024-11-08 23:08:00,453 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a81769 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 11:08:00, skipping insertion in model container [2024-11-08 23:08:00,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 11:08:00" (3/3) ... [2024-11-08 23:08:00,455 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-27.i [2024-11-08 23:08:00,470 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 23:08:00,471 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 23:08:00,531 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 23:08:00,537 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;@5524ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 23:08:00,537 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 23:08:00,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 53 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 23:08:00,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 23:08:00,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:08:00,554 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:08:00,555 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:08:00,560 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:08:00,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1570629044, now seen corresponding path program 1 times [2024-11-08 23:08:00,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:08:00,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403831844] [2024-11-08 23:08:00,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:08:00,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:08:00,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:00,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:08:00,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:00,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:08:00,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:00,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:08:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:00,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:08:00,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:00,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:08:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:00,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:08:00,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:00,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:08:00,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:00,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:08:00,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:00,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:08:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:00,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:08:00,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:00,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:08:00,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:00,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:08:00,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:00,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:08:00,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:00,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:08:00,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:00,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 23:08:00,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:00,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 23:08:00,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:00,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 23:08:00,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:00,940 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 23:08:00,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:08:00,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403831844] [2024-11-08 23:08:00,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403831844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:08:00,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:08:00,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 23:08:00,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575457581] [2024-11-08 23:08:00,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:08:00,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 23:08:00,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:08:00,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 23:08:00,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 23:08:00,979 INFO L87 Difference]: Start difference. First operand has 53 states, 33 states have (on average 1.3333333333333333) internal successors, (44), 34 states have internal predecessors, (44), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 23:08:01,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:08:01,011 INFO L93 Difference]: Finished difference Result 99 states and 167 transitions. [2024-11-08 23:08:01,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 23:08:01,014 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) Word has length 109 [2024-11-08 23:08:01,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:08:01,021 INFO L225 Difference]: With dead ends: 99 [2024-11-08 23:08:01,022 INFO L226 Difference]: Without dead ends: 49 [2024-11-08 23:08:01,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 23:08:01,031 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 23:08:01,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 23:08:01,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2024-11-08 23:08:01,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2024-11-08 23:08:01,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-08 23:08:01,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 71 transitions. [2024-11-08 23:08:01,084 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 71 transitions. Word has length 109 [2024-11-08 23:08:01,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:08:01,085 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 71 transitions. [2024-11-08 23:08:01,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 23:08:01,086 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 71 transitions. [2024-11-08 23:08:01,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 23:08:01,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:08:01,089 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:08:01,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 23:08:01,090 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:08:01,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:08:01,090 INFO L85 PathProgramCache]: Analyzing trace with hash 868342326, now seen corresponding path program 1 times [2024-11-08 23:08:01,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:08:01,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651504392] [2024-11-08 23:08:01,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:08:01,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:08:01,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:06,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:08:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:06,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:08:06,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:06,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:08:06,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:06,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:08:06,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:06,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:08:06,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:06,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:08:06,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:06,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:08:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:06,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:08:06,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:06,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:08:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:06,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:08:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:06,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:08:06,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:06,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:08:06,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:06,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:08:06,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:06,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:08:06,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:06,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 23:08:06,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:06,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 23:08:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:06,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 23:08:06,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:06,760 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 23:08:06,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:08:06,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651504392] [2024-11-08 23:08:06,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651504392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:08:06,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:08:06,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 23:08:06,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203105976] [2024-11-08 23:08:06,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:08:06,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 23:08:06,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:08:06,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 23:08:06,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-08 23:08:06,767 INFO L87 Difference]: Start difference. First operand 49 states and 71 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:07,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:08:07,341 INFO L93 Difference]: Finished difference Result 110 states and 142 transitions. [2024-11-08 23:08:07,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 23:08:07,342 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-08 23:08:07,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:08:07,346 INFO L225 Difference]: With dead ends: 110 [2024-11-08 23:08:07,347 INFO L226 Difference]: Without dead ends: 108 [2024-11-08 23:08:07,347 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-08 23:08:07,348 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 89 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 23:08:07,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 314 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 23:08:07,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-11-08 23:08:07,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 75. [2024-11-08 23:08:07,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 54 states have internal predecessors, (67), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-08 23:08:07,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 105 transitions. [2024-11-08 23:08:07,377 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 105 transitions. Word has length 109 [2024-11-08 23:08:07,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:08:07,379 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 105 transitions. [2024-11-08 23:08:07,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:07,380 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 105 transitions. [2024-11-08 23:08:07,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 23:08:07,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:08:07,381 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:08:07,381 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 23:08:07,382 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:08:07,382 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:08:07,382 INFO L85 PathProgramCache]: Analyzing trace with hash -906665036, now seen corresponding path program 1 times [2024-11-08 23:08:07,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:08:07,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803587494] [2024-11-08 23:08:07,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:08:07,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:08:07,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:11,840 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:08:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:11,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:08:11,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:11,848 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:08:11,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:11,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:08:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:11,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:08:11,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:11,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:08:11,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:11,858 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:08:11,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:11,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:08:11,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:11,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:08:11,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:11,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:08:11,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:11,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:08:11,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:11,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:08:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:11,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:08:11,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:11,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:08:11,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:11,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 23:08:11,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:11,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 23:08:11,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:11,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 23:08:11,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:11,893 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 23:08:11,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:08:11,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803587494] [2024-11-08 23:08:11,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803587494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:08:11,895 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:08:11,895 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 23:08:11,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817404938] [2024-11-08 23:08:11,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:08:11,896 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 23:08:11,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:08:11,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 23:08:11,898 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-08 23:08:11,900 INFO L87 Difference]: Start difference. First operand 75 states and 105 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:12,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:08:12,465 INFO L93 Difference]: Finished difference Result 108 states and 140 transitions. [2024-11-08 23:08:12,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 23:08:12,467 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-08 23:08:12,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:08:12,469 INFO L225 Difference]: With dead ends: 108 [2024-11-08 23:08:12,469 INFO L226 Difference]: Without dead ends: 106 [2024-11-08 23:08:12,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-08 23:08:12,471 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 60 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 23:08:12,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 366 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 23:08:12,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-08 23:08:12,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 75. [2024-11-08 23:08:12,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 53 states have (on average 1.2641509433962264) internal successors, (67), 54 states have internal predecessors, (67), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-08 23:08:12,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 105 transitions. [2024-11-08 23:08:12,484 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 105 transitions. Word has length 109 [2024-11-08 23:08:12,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:08:12,484 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 105 transitions. [2024-11-08 23:08:12,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:12,485 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 105 transitions. [2024-11-08 23:08:12,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 23:08:12,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:08:12,487 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:08:12,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 23:08:12,487 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:08:12,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:08:12,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1569406904, now seen corresponding path program 1 times [2024-11-08 23:08:12,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:08:12,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37947749] [2024-11-08 23:08:12,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:08:12,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:08:12,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:14,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:08:14,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:14,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:08:14,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:14,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:08:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:14,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:08:14,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:14,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:08:14,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:14,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:08:14,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:14,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:08:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:14,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:08:14,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:14,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:08:14,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:14,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:08:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:14,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:08:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:14,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:08:14,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:14,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:08:14,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:14,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:08:14,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:14,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 23:08:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:14,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 23:08:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:14,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 23:08:14,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:14,087 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 23:08:14,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:08:14,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37947749] [2024-11-08 23:08:14,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37947749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:08:14,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:08:14,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 23:08:14,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921472221] [2024-11-08 23:08:14,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:08:14,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 23:08:14,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:08:14,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 23:08:14,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-08 23:08:14,090 INFO L87 Difference]: Start difference. First operand 75 states and 105 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:14,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:08:14,393 INFO L93 Difference]: Finished difference Result 185 states and 250 transitions. [2024-11-08 23:08:14,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 23:08:14,394 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-08 23:08:14,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:08:14,396 INFO L225 Difference]: With dead ends: 185 [2024-11-08 23:08:14,396 INFO L226 Difference]: Without dead ends: 113 [2024-11-08 23:08:14,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-08 23:08:14,399 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 51 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 367 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 23:08:14,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 367 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 23:08:14,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-11-08 23:08:14,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 75. [2024-11-08 23:08:14,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 53 states have (on average 1.2264150943396226) internal successors, (65), 54 states have internal predecessors, (65), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-08 23:08:14,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 103 transitions. [2024-11-08 23:08:14,412 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 103 transitions. Word has length 109 [2024-11-08 23:08:14,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:08:14,413 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 103 transitions. [2024-11-08 23:08:14,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:14,413 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 103 transitions. [2024-11-08 23:08:14,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 23:08:14,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:08:14,415 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:08:14,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 23:08:14,415 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:08:14,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:08:14,416 INFO L85 PathProgramCache]: Analyzing trace with hash -205600458, now seen corresponding path program 1 times [2024-11-08 23:08:14,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:08:14,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [256709869] [2024-11-08 23:08:14,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:08:14,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:08:14,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:15,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:08:15,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:15,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:08:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:15,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:08:15,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:15,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:08:15,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:15,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:08:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:15,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:08:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:15,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:08:15,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:15,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:08:15,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:15,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:08:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:15,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:08:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:15,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:08:15,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:15,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:08:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:15,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:08:15,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:15,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:08:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:15,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 23:08:15,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:15,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 23:08:15,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:15,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 23:08:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:15,761 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 23:08:15,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:08:15,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [256709869] [2024-11-08 23:08:15,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [256709869] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:08:15,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:08:15,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 23:08:15,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803696824] [2024-11-08 23:08:15,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:08:15,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 23:08:15,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:08:15,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 23:08:15,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-08 23:08:15,764 INFO L87 Difference]: Start difference. First operand 75 states and 103 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:16,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:08:16,113 INFO L93 Difference]: Finished difference Result 113 states and 143 transitions. [2024-11-08 23:08:16,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 23:08:16,114 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 109 [2024-11-08 23:08:16,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:08:16,116 INFO L225 Difference]: With dead ends: 113 [2024-11-08 23:08:16,116 INFO L226 Difference]: Without dead ends: 111 [2024-11-08 23:08:16,116 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-08 23:08:16,117 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 48 mSDsluCounter, 366 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 23:08:16,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 456 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 23:08:16,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2024-11-08 23:08:16,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 75. [2024-11-08 23:08:16,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 53 states have (on average 1.2264150943396226) internal successors, (65), 54 states have internal predecessors, (65), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-08 23:08:16,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 103 transitions. [2024-11-08 23:08:16,141 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 103 transitions. Word has length 109 [2024-11-08 23:08:16,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:08:16,142 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 103 transitions. [2024-11-08 23:08:16,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:16,142 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 103 transitions. [2024-11-08 23:08:16,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 23:08:16,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:08:16,144 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:08:16,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 23:08:16,148 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:08:16,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:08:16,149 INFO L85 PathProgramCache]: Analyzing trace with hash 913248035, now seen corresponding path program 1 times [2024-11-08 23:08:16,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:08:16,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993310580] [2024-11-08 23:08:16,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:08:16,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:08:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:20,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:08:20,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:20,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:08:20,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:20,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:08:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:20,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:08:20,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:20,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:08:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:20,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:08:20,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:20,381 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:08:20,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:20,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:08:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:20,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:08:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:20,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:08:20,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:20,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:08:20,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:20,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:08:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:20,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:08:20,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:20,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:08:20,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:20,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 23:08:20,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:20,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 23:08:20,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:20,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 23:08:20,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:20,398 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 23:08:20,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:08:20,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993310580] [2024-11-08 23:08:20,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993310580] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:08:20,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:08:20,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 23:08:20,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356924655] [2024-11-08 23:08:20,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:08:20,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 23:08:20,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:08:20,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 23:08:20,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-08 23:08:20,402 INFO L87 Difference]: Start difference. First operand 75 states and 103 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:22,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:08:22,314 INFO L93 Difference]: Finished difference Result 133 states and 168 transitions. [2024-11-08 23:08:22,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 23:08:22,314 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 110 [2024-11-08 23:08:22,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:08:22,315 INFO L225 Difference]: With dead ends: 133 [2024-11-08 23:08:22,316 INFO L226 Difference]: Without dead ends: 131 [2024-11-08 23:08:22,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-08 23:08:22,318 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 62 mSDsluCounter, 426 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 500 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 23:08:22,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 500 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 23:08:22,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-08 23:08:22,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 80. [2024-11-08 23:08:22,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 58 states have (on average 1.2586206896551724) internal successors, (73), 59 states have internal predecessors, (73), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-08 23:08:22,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 111 transitions. [2024-11-08 23:08:22,331 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 111 transitions. Word has length 110 [2024-11-08 23:08:22,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:08:22,331 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 111 transitions. [2024-11-08 23:08:22,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:22,332 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 111 transitions. [2024-11-08 23:08:22,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 23:08:22,333 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:08:22,333 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:08:22,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 23:08:22,334 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:08:22,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:08:22,334 INFO L85 PathProgramCache]: Analyzing trace with hash 1722594661, now seen corresponding path program 1 times [2024-11-08 23:08:22,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:08:22,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847782082] [2024-11-08 23:08:22,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:08:22,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:08:22,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:26,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:08:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:26,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:08:26,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:26,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:08:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:26,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:08:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:26,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:08:26,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:26,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:08:26,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:26,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:08:26,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:26,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:08:26,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:26,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:08:26,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:26,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:08:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:26,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:08:26,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:26,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:08:26,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:26,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:08:26,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:26,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:08:26,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:26,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 23:08:26,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:26,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 23:08:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:26,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 23:08:26,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:26,905 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 23:08:26,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:08:26,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847782082] [2024-11-08 23:08:26,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847782082] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:08:26,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:08:26,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 23:08:26,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711507079] [2024-11-08 23:08:26,906 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:08:26,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 23:08:26,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:08:26,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 23:08:26,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-08 23:08:26,908 INFO L87 Difference]: Start difference. First operand 80 states and 111 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:27,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:08:27,789 INFO L93 Difference]: Finished difference Result 133 states and 168 transitions. [2024-11-08 23:08:27,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 23:08:27,790 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 110 [2024-11-08 23:08:27,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:08:27,791 INFO L225 Difference]: With dead ends: 133 [2024-11-08 23:08:27,791 INFO L226 Difference]: Without dead ends: 131 [2024-11-08 23:08:27,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-08 23:08:27,792 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 62 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 495 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 23:08:27,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 495 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 23:08:27,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-08 23:08:27,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 83. [2024-11-08 23:08:27,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 61 states have (on average 1.278688524590164) internal successors, (78), 62 states have internal predecessors, (78), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-08 23:08:27,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 116 transitions. [2024-11-08 23:08:27,808 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 116 transitions. Word has length 110 [2024-11-08 23:08:27,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:08:27,809 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 116 transitions. [2024-11-08 23:08:27,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:27,809 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 116 transitions. [2024-11-08 23:08:27,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 23:08:27,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:08:27,811 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:08:27,811 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 23:08:27,811 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:08:27,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:08:27,812 INFO L85 PathProgramCache]: Analyzing trace with hash 1724441703, now seen corresponding path program 1 times [2024-11-08 23:08:27,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:08:27,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747559394] [2024-11-08 23:08:27,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:08:27,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:08:27,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:32,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:08:32,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:32,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:08:32,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:32,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:08:32,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:32,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:08:32,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:32,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:08:32,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:32,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:08:32,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:32,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:08:32,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:32,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:08:32,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:32,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:08:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:32,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:08:32,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:32,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:08:32,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:32,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:08:32,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:32,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:08:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:32,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:08:32,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:32,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 23:08:32,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:32,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 23:08:32,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:32,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 23:08:32,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:32,044 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 23:08:32,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:08:32,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747559394] [2024-11-08 23:08:32,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747559394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:08:32,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:08:32,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 23:08:32,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294706991] [2024-11-08 23:08:32,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:08:32,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 23:08:32,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:08:32,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 23:08:32,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-08 23:08:32,046 INFO L87 Difference]: Start difference. First operand 83 states and 116 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:34,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:08:34,912 INFO L93 Difference]: Finished difference Result 131 states and 166 transitions. [2024-11-08 23:08:34,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 23:08:34,913 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 110 [2024-11-08 23:08:34,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:08:34,914 INFO L225 Difference]: With dead ends: 131 [2024-11-08 23:08:34,914 INFO L226 Difference]: Without dead ends: 129 [2024-11-08 23:08:34,915 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-08 23:08:34,915 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 73 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 374 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 23:08:34,916 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 374 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 23:08:34,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2024-11-08 23:08:34,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 80. [2024-11-08 23:08:34,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 58 states have (on average 1.2586206896551724) internal successors, (73), 59 states have internal predecessors, (73), 19 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (19), 18 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-08 23:08:34,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 111 transitions. [2024-11-08 23:08:34,928 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 111 transitions. Word has length 110 [2024-11-08 23:08:34,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:08:34,929 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 111 transitions. [2024-11-08 23:08:34,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:34,929 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 111 transitions. [2024-11-08 23:08:34,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 23:08:34,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:08:34,930 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:08:34,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 23:08:34,931 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:08:34,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:08:34,931 INFO L85 PathProgramCache]: Analyzing trace with hash -2140231638, now seen corresponding path program 1 times [2024-11-08 23:08:34,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:08:34,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091359501] [2024-11-08 23:08:34,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:08:34,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:08:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:34,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:08:34,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:34,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:08:34,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:34,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:08:34,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:34,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:08:34,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:34,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:08:34,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:34,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:08:34,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:34,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:08:35,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:35,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:08:35,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:35,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:08:35,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:35,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:08:35,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:35,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:08:35,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:35,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:08:35,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:35,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:08:35,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:35,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:08:35,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:35,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 23:08:35,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:35,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 23:08:35,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:35,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 23:08:35,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:35,024 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 23:08:35,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:08:35,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091359501] [2024-11-08 23:08:35,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091359501] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:08:35,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:08:35,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 23:08:35,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386093495] [2024-11-08 23:08:35,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:08:35,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 23:08:35,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:08:35,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 23:08:35,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 23:08:35,027 INFO L87 Difference]: Start difference. First operand 80 states and 111 transitions. Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:35,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:08:35,064 INFO L93 Difference]: Finished difference Result 210 states and 293 transitions. [2024-11-08 23:08:35,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 23:08:35,065 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 110 [2024-11-08 23:08:35,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:08:35,067 INFO L225 Difference]: With dead ends: 210 [2024-11-08 23:08:35,067 INFO L226 Difference]: Without dead ends: 137 [2024-11-08 23:08:35,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 23:08:35,068 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 34 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 23:08:35,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 217 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 23:08:35,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-08 23:08:35,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 135. [2024-11-08 23:08:35,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 94 states have (on average 1.2340425531914894) internal successors, (116), 95 states have internal predecessors, (116), 36 states have call successors, (36), 4 states have call predecessors, (36), 4 states have return successors, (36), 35 states have call predecessors, (36), 36 states have call successors, (36) [2024-11-08 23:08:35,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 188 transitions. [2024-11-08 23:08:35,100 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 188 transitions. Word has length 110 [2024-11-08 23:08:35,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:08:35,100 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 188 transitions. [2024-11-08 23:08:35,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:35,101 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 188 transitions. [2024-11-08 23:08:35,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 23:08:35,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:08:35,102 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:08:35,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 23:08:35,102 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:08:35,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:08:35,103 INFO L85 PathProgramCache]: Analyzing trace with hash 379728296, now seen corresponding path program 1 times [2024-11-08 23:08:35,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:08:35,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78950095] [2024-11-08 23:08:35,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:08:35,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:08:35,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:37,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:08:37,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:37,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:08:37,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:37,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:08:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:37,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:08:37,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:37,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:08:37,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:37,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:08:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:37,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:08:37,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:37,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:08:37,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:37,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:08:37,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:37,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:08:37,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:37,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:08:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:37,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:08:37,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:37,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:08:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:37,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:08:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:37,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 23:08:37,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:37,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 23:08:37,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:37,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 23:08:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:37,072 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 23:08:37,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:08:37,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78950095] [2024-11-08 23:08:37,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78950095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:08:37,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:08:37,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 23:08:37,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666649890] [2024-11-08 23:08:37,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:08:37,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 23:08:37,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:08:37,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 23:08:37,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 23:08:37,075 INFO L87 Difference]: Start difference. First operand 135 states and 188 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:37,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:08:37,830 INFO L93 Difference]: Finished difference Result 377 states and 511 transitions. [2024-11-08 23:08:37,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 23:08:37,831 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 110 [2024-11-08 23:08:37,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:08:37,834 INFO L225 Difference]: With dead ends: 377 [2024-11-08 23:08:37,834 INFO L226 Difference]: Without dead ends: 249 [2024-11-08 23:08:37,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=105, Invalid=275, Unknown=0, NotChecked=0, Total=380 [2024-11-08 23:08:37,836 INFO L432 NwaCegarLoop]: 86 mSDtfsCounter, 114 mSDsluCounter, 339 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 425 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 23:08:37,837 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 425 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 23:08:37,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-11-08 23:08:37,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 198. [2024-11-08 23:08:37,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 138 states have (on average 1.210144927536232) internal successors, (167), 139 states have internal predecessors, (167), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-08 23:08:37,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 273 transitions. [2024-11-08 23:08:37,883 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 273 transitions. Word has length 110 [2024-11-08 23:08:37,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:08:37,884 INFO L471 AbstractCegarLoop]: Abstraction has 198 states and 273 transitions. [2024-11-08 23:08:37,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:37,884 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 273 transitions. [2024-11-08 23:08:37,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-08 23:08:37,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:08:37,885 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:08:37,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 23:08:37,886 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:08:37,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:08:37,894 INFO L85 PathProgramCache]: Analyzing trace with hash 637893734, now seen corresponding path program 1 times [2024-11-08 23:08:37,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:08:37,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048574244] [2024-11-08 23:08:37,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:08:37,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:08:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:39,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:08:39,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:39,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:08:39,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:39,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:08:39,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:39,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:08:39,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:39,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:08:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:39,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:08:39,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:39,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:08:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:39,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:08:39,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:39,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:08:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:39,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:08:39,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:39,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:08:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:39,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:08:39,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:39,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:08:39,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:40,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:08:40,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:40,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 23:08:40,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:40,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 23:08:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:40,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 23:08:40,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:40,089 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 23:08:40,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:08:40,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048574244] [2024-11-08 23:08:40,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048574244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:08:40,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:08:40,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-08 23:08:40,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271686407] [2024-11-08 23:08:40,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:08:40,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 23:08:40,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:08:40,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 23:08:40,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-08 23:08:40,091 INFO L87 Difference]: Start difference. First operand 198 states and 273 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 23:08:40,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:08:40,927 INFO L93 Difference]: Finished difference Result 248 states and 340 transitions. [2024-11-08 23:08:40,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 23:08:40,927 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 110 [2024-11-08 23:08:40,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:08:40,929 INFO L225 Difference]: With dead ends: 248 [2024-11-08 23:08:40,929 INFO L226 Difference]: Without dead ends: 246 [2024-11-08 23:08:40,929 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=100, Invalid=206, Unknown=0, NotChecked=0, Total=306 [2024-11-08 23:08:40,929 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 73 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 353 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 374 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 23:08:40,930 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 342 Invalid, 374 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 353 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 23:08:40,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-08 23:08:40,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 245. [2024-11-08 23:08:40,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 166 states have (on average 1.1867469879518073) internal successors, (197), 167 states have internal predecessors, (197), 70 states have call successors, (70), 8 states have call predecessors, (70), 8 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2024-11-08 23:08:40,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 337 transitions. [2024-11-08 23:08:40,963 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 337 transitions. Word has length 110 [2024-11-08 23:08:40,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:08:40,963 INFO L471 AbstractCegarLoop]: Abstraction has 245 states and 337 transitions. [2024-11-08 23:08:40,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 2 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2024-11-08 23:08:40,963 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 337 transitions. [2024-11-08 23:08:40,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 23:08:40,965 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:08:40,965 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:08:40,965 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 23:08:40,965 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:08:40,965 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:08:40,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1765204623, now seen corresponding path program 1 times [2024-11-08 23:08:40,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:08:40,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304465417] [2024-11-08 23:08:40,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:08:40,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:08:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:45,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:08:45,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:45,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:08:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:45,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:08:45,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:45,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:08:45,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:45,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:08:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:45,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:08:45,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:45,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:08:45,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:45,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:08:45,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:45,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:08:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:45,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:08:45,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:45,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:08:45,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:45,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:08:45,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:45,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:08:45,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:45,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:08:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:45,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 23:08:45,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:45,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 23:08:45,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:45,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 23:08:45,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:45,559 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 23:08:45,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:08:45,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304465417] [2024-11-08 23:08:45,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304465417] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:08:45,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:08:45,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 23:08:45,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507186127] [2024-11-08 23:08:45,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:08:45,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 23:08:45,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:08:45,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 23:08:45,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-08 23:08:45,563 INFO L87 Difference]: Start difference. First operand 245 states and 337 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:47,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:08:47,838 INFO L93 Difference]: Finished difference Result 395 states and 527 transitions. [2024-11-08 23:08:47,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 23:08:47,839 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 111 [2024-11-08 23:08:47,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:08:47,841 INFO L225 Difference]: With dead ends: 395 [2024-11-08 23:08:47,841 INFO L226 Difference]: Without dead ends: 261 [2024-11-08 23:08:47,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2024-11-08 23:08:47,843 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 107 mSDsluCounter, 505 mSDsCounter, 0 mSdLazyCounter, 403 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 23:08:47,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 597 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 403 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 23:08:47,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-08 23:08:47,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 187. [2024-11-08 23:08:47,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 127 states have (on average 1.1732283464566928) internal successors, (149), 128 states have internal predecessors, (149), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-08 23:08:47,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 255 transitions. [2024-11-08 23:08:47,876 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 255 transitions. Word has length 111 [2024-11-08 23:08:47,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:08:47,876 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 255 transitions. [2024-11-08 23:08:47,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:47,876 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 255 transitions. [2024-11-08 23:08:47,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 23:08:47,877 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:08:47,877 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:08:47,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 23:08:47,878 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:08:47,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:08:47,878 INFO L85 PathProgramCache]: Analyzing trace with hash -1763357581, now seen corresponding path program 1 times [2024-11-08 23:08:47,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:08:47,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396881502] [2024-11-08 23:08:47,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:08:47,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:08:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:51,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:08:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:51,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:08:51,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:51,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:08:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:51,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:08:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:51,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:08:51,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:51,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:08:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:51,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:08:51,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:51,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:08:51,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:51,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:08:51,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:51,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:08:51,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:51,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:08:51,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:51,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:08:51,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:51,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:08:51,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:51,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:08:51,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:51,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 23:08:51,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:51,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 23:08:51,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:51,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 23:08:51,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:51,714 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 23:08:51,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:08:51,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396881502] [2024-11-08 23:08:51,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396881502] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:08:51,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:08:51,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 23:08:51,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063669729] [2024-11-08 23:08:51,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:08:51,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 23:08:51,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:08:51,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 23:08:51,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2024-11-08 23:08:51,716 INFO L87 Difference]: Start difference. First operand 187 states and 255 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:55,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:08:55,137 INFO L93 Difference]: Finished difference Result 252 states and 325 transitions. [2024-11-08 23:08:55,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 23:08:55,138 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 111 [2024-11-08 23:08:55,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:08:55,140 INFO L225 Difference]: With dead ends: 252 [2024-11-08 23:08:55,140 INFO L226 Difference]: Without dead ends: 250 [2024-11-08 23:08:55,140 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=106, Invalid=314, Unknown=0, NotChecked=0, Total=420 [2024-11-08 23:08:55,141 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 72 mSDsluCounter, 458 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 23:08:55,141 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 550 Invalid, 350 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 23:08:55,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-08 23:08:55,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 186. [2024-11-08 23:08:55,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 126 states have (on average 1.1666666666666667) internal successors, (147), 127 states have internal predecessors, (147), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-08 23:08:55,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 253 transitions. [2024-11-08 23:08:55,176 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 253 transitions. Word has length 111 [2024-11-08 23:08:55,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:08:55,176 INFO L471 AbstractCegarLoop]: Abstraction has 186 states and 253 transitions. [2024-11-08 23:08:55,176 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:55,176 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 253 transitions. [2024-11-08 23:08:55,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 23:08:55,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:08:55,177 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:08:55,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 23:08:55,178 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:08:55,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:08:55,178 INFO L85 PathProgramCache]: Analyzing trace with hash -955857997, now seen corresponding path program 1 times [2024-11-08 23:08:55,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:08:55,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358325485] [2024-11-08 23:08:55,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:08:55,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:08:55,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:58,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:08:58,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:58,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:08:58,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:58,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:08:58,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:58,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:08:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:58,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:08:58,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:58,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:08:58,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:58,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:08:58,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:58,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:08:58,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:58,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:08:58,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:58,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:08:58,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:58,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:08:58,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:58,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:08:58,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:58,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:08:58,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:58,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:08:58,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:58,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 23:08:58,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:58,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 23:08:58,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:58,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 23:08:58,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:08:58,979 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 23:08:58,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:08:58,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358325485] [2024-11-08 23:08:58,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358325485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:08:58,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:08:58,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 23:08:58,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422920826] [2024-11-08 23:08:58,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:08:58,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 23:08:58,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:08:58,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 23:08:58,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-08 23:08:58,981 INFO L87 Difference]: Start difference. First operand 186 states and 253 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:59,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:08:59,915 INFO L93 Difference]: Finished difference Result 228 states and 299 transitions. [2024-11-08 23:08:59,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 23:08:59,916 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 111 [2024-11-08 23:08:59,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:08:59,917 INFO L225 Difference]: With dead ends: 228 [2024-11-08 23:08:59,917 INFO L226 Difference]: Without dead ends: 226 [2024-11-08 23:08:59,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-11-08 23:08:59,918 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 88 mSDsluCounter, 513 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 23:08:59,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 610 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 23:08:59,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-08 23:08:59,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 187. [2024-11-08 23:08:59,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 127 states have (on average 1.1732283464566928) internal successors, (149), 128 states have internal predecessors, (149), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-08 23:08:59,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 255 transitions. [2024-11-08 23:08:59,946 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 255 transitions. Word has length 111 [2024-11-08 23:08:59,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:08:59,946 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 255 transitions. [2024-11-08 23:08:59,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:08:59,947 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 255 transitions. [2024-11-08 23:08:59,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-08 23:08:59,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:08:59,948 INFO L215 NwaCegarLoop]: trace histogram [17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:08:59,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 23:08:59,948 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:08:59,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:08:59,948 INFO L85 PathProgramCache]: Analyzing trace with hash -954010955, now seen corresponding path program 1 times [2024-11-08 23:08:59,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:08:59,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401838161] [2024-11-08 23:08:59,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:08:59,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:08:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:02,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:09:02,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:02,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:09:02,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:02,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:09:02,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:02,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:09:02,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:02,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:09:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:02,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:09:02,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:02,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:09:02,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:02,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:09:02,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:02,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:09:02,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:02,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:09:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:02,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:09:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:02,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:09:02,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:02,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:09:02,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:02,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:09:02,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:02,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 23:09:02,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:02,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 23:09:02,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:02,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 23:09:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:03,000 INFO L134 CoverageAnalysis]: Checked inductivity of 544 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-11-08 23:09:03,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:09:03,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401838161] [2024-11-08 23:09:03,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401838161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 23:09:03,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 23:09:03,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 23:09:03,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1900465355] [2024-11-08 23:09:03,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 23:09:03,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 23:09:03,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 23:09:03,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 23:09:03,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-08 23:09:03,003 INFO L87 Difference]: Start difference. First operand 187 states and 255 transitions. Second operand has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:09:04,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 23:09:04,065 INFO L93 Difference]: Finished difference Result 226 states and 297 transitions. [2024-11-08 23:09:04,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 23:09:04,066 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) Word has length 111 [2024-11-08 23:09:04,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 23:09:04,067 INFO L225 Difference]: With dead ends: 226 [2024-11-08 23:09:04,067 INFO L226 Difference]: Without dead ends: 224 [2024-11-08 23:09:04,067 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2024-11-08 23:09:04,068 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 82 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 400 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 400 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 23:09:04,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 502 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 400 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 23:09:04,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-08 23:09:04,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 184. [2024-11-08 23:09:04,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 124 states have (on average 1.1693548387096775) internal successors, (145), 125 states have internal predecessors, (145), 53 states have call successors, (53), 6 states have call predecessors, (53), 6 states have return successors, (53), 52 states have call predecessors, (53), 53 states have call successors, (53) [2024-11-08 23:09:04,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 251 transitions. [2024-11-08 23:09:04,097 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 251 transitions. Word has length 111 [2024-11-08 23:09:04,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 23:09:04,097 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 251 transitions. [2024-11-08 23:09:04,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.4166666666666665) internal successors, (29), 12 states have internal predecessors, (29), 1 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 1 states have call predecessors, (17), 1 states have call successors, (17) [2024-11-08 23:09:04,097 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 251 transitions. [2024-11-08 23:09:04,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-11-08 23:09:04,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 23:09:04,099 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 23:09:04,099 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 23:09:04,099 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 23:09:04,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 23:09:04,100 INFO L85 PathProgramCache]: Analyzing trace with hash -457020364, now seen corresponding path program 1 times [2024-11-08 23:09:04,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 23:09:04,100 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494830890] [2024-11-08 23:09:04,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:09:04,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 23:09:04,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-08 23:09:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 23:09:06,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 23:09:06,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 23:09:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 23:09:06,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 23:09:06,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-08 23:09:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,115 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-08 23:09:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-08 23:09:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 23:09:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 23:09:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-08 23:09:06,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 23:09:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-08 23:09:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 23:09:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-08 23:09:06,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2024-11-08 23:09:06,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-11-08 23:09:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-08 23:09:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-11-08 23:09:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-08 23:09:06,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-08 23:09:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-08 23:09:06,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-11-08 23:09:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-08 23:09:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 23:09:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 23:09:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,139 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2024-11-08 23:09:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-08 23:09:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2024-11-08 23:09:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,143 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-08 23:09:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,145 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-08 23:09:06,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-11-08 23:09:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2024-11-08 23:09:06,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,151 INFO L134 CoverageAnalysis]: Checked inductivity of 2281 backedges. 31 proven. 6 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-11-08 23:09:06,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 23:09:06,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494830890] [2024-11-08 23:09:06,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494830890] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 23:09:06,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1270008254] [2024-11-08 23:09:06,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 23:09:06,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 23:09:06,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 23:09:06,155 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 23:09:06,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 23:09:06,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 23:09:06,303 INFO L255 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 23:09:06,316 INFO L278 TraceCheckSpWp]: Computing forward predicates...