./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-88.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-88.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 53755642d89d6037be376831b03479fef7eeb8c5758e8107a832bfc0071676df --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 11:19:23,458 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 11:19:23,523 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 11:19:23,526 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 11:19:23,527 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 11:19:23,549 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 11:19:23,550 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 11:19:23,550 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 11:19:23,551 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 11:19:23,551 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 11:19:23,551 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 11:19:23,552 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 11:19:23,552 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 11:19:23,553 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 11:19:23,553 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 11:19:23,553 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 11:19:23,554 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 11:19:23,554 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 11:19:23,555 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 11:19:23,555 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 11:19:23,555 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 11:19:23,556 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 11:19:23,556 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 11:19:23,559 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 11:19:23,559 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 11:19:23,560 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 11:19:23,560 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 11:19:23,560 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 11:19:23,560 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 11:19:23,560 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 11:19:23,561 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 11:19:23,561 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 11:19:23,561 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:19:23,561 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 11:19:23,561 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 11:19:23,562 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 11:19:23,562 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 11:19:23,563 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 11:19:23,564 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 11:19:23,564 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 11:19:23,564 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 11:19:23,565 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 11:19:23,565 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53755642d89d6037be376831b03479fef7eeb8c5758e8107a832bfc0071676df [2024-10-14 11:19:23,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 11:19:23,860 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 11:19:23,863 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 11:19:23,864 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 11:19:23,865 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 11:19:23,866 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-88.i [2024-10-14 11:19:25,323 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 11:19:25,532 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 11:19:25,532 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-88.i [2024-10-14 11:19:25,545 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b23268431/86d967d497d44db0a9e6ba09f4530436/FLAG5aacacb96 [2024-10-14 11:19:25,559 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b23268431/86d967d497d44db0a9e6ba09f4530436 [2024-10-14 11:19:25,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 11:19:25,563 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 11:19:25,565 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 11:19:25,566 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 11:19:25,570 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 11:19:25,570 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:19:25" (1/1) ... [2024-10-14 11:19:25,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71849b2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:25, skipping insertion in model container [2024-10-14 11:19:25,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:19:25" (1/1) ... [2024-10-14 11:19:25,606 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 11:19:25,794 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-88.i[916,929] [2024-10-14 11:19:25,882 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:19:25,902 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 11:19:25,915 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_100-1loop_file-88.i[916,929] [2024-10-14 11:19:25,990 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 11:19:26,016 INFO L204 MainTranslator]: Completed translation [2024-10-14 11:19:26,017 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:26 WrapperNode [2024-10-14 11:19:26,017 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 11:19:26,018 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 11:19:26,019 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 11:19:26,019 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 11:19:26,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:26" (1/1) ... [2024-10-14 11:19:26,045 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:26" (1/1) ... [2024-10-14 11:19:26,114 INFO L138 Inliner]: procedures = 26, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 286 [2024-10-14 11:19:26,114 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 11:19:26,116 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 11:19:26,116 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 11:19:26,116 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 11:19:26,127 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:26" (1/1) ... [2024-10-14 11:19:26,127 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:26" (1/1) ... [2024-10-14 11:19:26,134 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:26" (1/1) ... [2024-10-14 11:19:26,161 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 11:19:26,161 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:26" (1/1) ... [2024-10-14 11:19:26,162 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:26" (1/1) ... [2024-10-14 11:19:26,173 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:26" (1/1) ... [2024-10-14 11:19:26,177 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:26" (1/1) ... [2024-10-14 11:19:26,180 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:26" (1/1) ... [2024-10-14 11:19:26,184 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:26" (1/1) ... [2024-10-14 11:19:26,191 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 11:19:26,191 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 11:19:26,192 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 11:19:26,192 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 11:19:26,194 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:26" (1/1) ... [2024-10-14 11:19:26,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 11:19:26,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:19:26,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 11:19:26,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 11:19:26,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 11:19:26,286 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 11:19:26,287 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 11:19:26,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 11:19:26,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 11:19:26,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 11:19:26,375 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 11:19:26,378 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 11:19:26,944 INFO L? ?]: Removed 41 outVars from TransFormulas that were not future-live. [2024-10-14 11:19:26,944 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 11:19:26,987 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 11:19:26,989 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 11:19:26,990 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:19:26 BoogieIcfgContainer [2024-10-14 11:19:26,990 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 11:19:26,993 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 11:19:26,994 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 11:19:26,997 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 11:19:26,997 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:19:25" (1/3) ... [2024-10-14 11:19:26,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@633f9ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:19:26, skipping insertion in model container [2024-10-14 11:19:26,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:19:26" (2/3) ... [2024-10-14 11:19:26,998 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@633f9ae8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:19:26, skipping insertion in model container [2024-10-14 11:19:26,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:19:26" (3/3) ... [2024-10-14 11:19:26,999 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_100-1loop_file-88.i [2024-10-14 11:19:27,018 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 11:19:27,019 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 11:19:27,110 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 11:19:27,119 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;@674c56c9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 11:19:27,120 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 11:19:27,126 INFO L276 IsEmpty]: Start isEmpty. Operand has 111 states, 80 states have (on average 1.4625) internal successors, (117), 81 states have internal predecessors, (117), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 11:19:27,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-10-14 11:19:27,140 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:19:27,141 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:19:27,141 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:19:27,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:19:27,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1719694929, now seen corresponding path program 1 times [2024-10-14 11:19:27,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:19:27,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765666168] [2024-10-14 11:19:27,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:19:27,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:19:27,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:19:27,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 11:19:27,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 11:19:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 11:19:27,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 11:19:27,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 11:19:27,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:19:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 11:19:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 11:19:27,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 11:19:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 11:19:27,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 11:19:27,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 11:19:27,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 11:19:27,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 11:19:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 11:19:27,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 11:19:27,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 11:19:27,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:19:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:19:27,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:19:27,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 11:19:27,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 11:19:27,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 11:19:27,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 11:19:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 11:19:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 11:19:27,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 11:19:27,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:27,745 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-14 11:19:27,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:19:27,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765666168] [2024-10-14 11:19:27,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765666168] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:19:27,746 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:19:27,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 11:19:27,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1479514927] [2024-10-14 11:19:27,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:19:27,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 11:19:27,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:19:27,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 11:19:27,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:19:27,811 INFO L87 Difference]: Start difference. First operand has 111 states, 80 states have (on average 1.4625) internal successors, (117), 81 states have internal predecessors, (117), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) [2024-10-14 11:19:27,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:19:27,877 INFO L93 Difference]: Finished difference Result 221 states and 373 transitions. [2024-10-14 11:19:27,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 11:19:27,880 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) Word has length 187 [2024-10-14 11:19:27,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:19:27,889 INFO L225 Difference]: With dead ends: 221 [2024-10-14 11:19:27,891 INFO L226 Difference]: Without dead ends: 109 [2024-10-14 11:19:27,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 11:19:27,902 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 11:19:27,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 165 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 11:19:27,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-10-14 11:19:27,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-10-14 11:19:27,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 79 states have (on average 1.4177215189873418) internal successors, (112), 79 states have internal predecessors, (112), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-10-14 11:19:27,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 168 transitions. [2024-10-14 11:19:27,959 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 168 transitions. Word has length 187 [2024-10-14 11:19:27,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:19:27,960 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 168 transitions. [2024-10-14 11:19:27,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) [2024-10-14 11:19:27,961 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 168 transitions. [2024-10-14 11:19:27,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-10-14 11:19:27,967 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:19:27,967 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:19:27,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 11:19:27,968 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:19:27,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:19:27,969 INFO L85 PathProgramCache]: Analyzing trace with hash -972056265, now seen corresponding path program 1 times [2024-10-14 11:19:27,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:19:27,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078372540] [2024-10-14 11:19:27,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:19:27,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:19:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:19:28,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 11:19:28,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 11:19:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 11:19:28,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 11:19:28,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 11:19:28,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:19:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 11:19:28,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 11:19:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 11:19:28,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 11:19:28,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 11:19:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 11:19:28,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 11:19:28,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 11:19:28,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 11:19:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 11:19:28,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 11:19:28,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:19:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:19:28,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:19:28,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 11:19:28,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 11:19:28,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 11:19:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 11:19:28,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 11:19:28,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,880 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 11:19:28,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 11:19:28,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:28,895 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-14 11:19:28,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:19:28,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078372540] [2024-10-14 11:19:28,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078372540] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:19:28,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:19:28,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 11:19:28,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123969712] [2024-10-14 11:19:28,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:19:28,899 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 11:19:28,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:19:28,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 11:19:28,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 11:19:28,903 INFO L87 Difference]: Start difference. First operand 109 states and 168 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:29,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:19:29,157 INFO L93 Difference]: Finished difference Result 364 states and 558 transitions. [2024-10-14 11:19:29,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 11:19:29,158 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 187 [2024-10-14 11:19:29,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:19:29,163 INFO L225 Difference]: With dead ends: 364 [2024-10-14 11:19:29,164 INFO L226 Difference]: Without dead ends: 256 [2024-10-14 11:19:29,165 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 11:19:29,168 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 244 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 11:19:29,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 471 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 11:19:29,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-10-14 11:19:29,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 211. [2024-10-14 11:19:29,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 152 states have (on average 1.388157894736842) internal successors, (211), 152 states have internal predecessors, (211), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-10-14 11:19:29,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 323 transitions. [2024-10-14 11:19:29,214 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 323 transitions. Word has length 187 [2024-10-14 11:19:29,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:19:29,214 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 323 transitions. [2024-10-14 11:19:29,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:29,215 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 323 transitions. [2024-10-14 11:19:29,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-10-14 11:19:29,223 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:19:29,223 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:19:29,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 11:19:29,224 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:19:29,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:19:29,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1008484171, now seen corresponding path program 1 times [2024-10-14 11:19:29,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:19:29,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045128722] [2024-10-14 11:19:29,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:19:29,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:19:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:19:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 11:19:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 11:19:29,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 11:19:29,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 11:19:29,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 11:19:29,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,559 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:19:29,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 11:19:29,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 11:19:29,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 11:19:29,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 11:19:29,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 11:19:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 11:19:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 11:19:29,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 11:19:29,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 11:19:29,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 11:19:29,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 11:19:29,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:19:29,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:19:29,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:19:29,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 11:19:29,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 11:19:29,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 11:19:29,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 11:19:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,687 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 11:19:29,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 11:19:29,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 11:19:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:29,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-14 11:19:29,711 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:19:29,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045128722] [2024-10-14 11:19:29,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045128722] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:19:29,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:19:29,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 11:19:29,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185612736] [2024-10-14 11:19:29,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:19:29,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 11:19:29,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:19:29,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 11:19:29,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-14 11:19:29,716 INFO L87 Difference]: Start difference. First operand 211 states and 323 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-10-14 11:19:30,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:19:30,049 INFO L93 Difference]: Finished difference Result 567 states and 865 transitions. [2024-10-14 11:19:30,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 11:19:30,050 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 188 [2024-10-14 11:19:30,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:19:30,054 INFO L225 Difference]: With dead ends: 567 [2024-10-14 11:19:30,055 INFO L226 Difference]: Without dead ends: 357 [2024-10-14 11:19:30,056 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 11:19:30,057 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 158 mSDsluCounter, 552 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 713 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 11:19:30,057 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 713 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 11:19:30,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-10-14 11:19:30,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 265. [2024-10-14 11:19:30,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 177 states have (on average 1.344632768361582) internal successors, (238), 177 states have internal predecessors, (238), 84 states have call successors, (84), 3 states have call predecessors, (84), 3 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-10-14 11:19:30,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 406 transitions. [2024-10-14 11:19:30,125 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 406 transitions. Word has length 188 [2024-10-14 11:19:30,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:19:30,126 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 406 transitions. [2024-10-14 11:19:30,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-10-14 11:19:30,127 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 406 transitions. [2024-10-14 11:19:30,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-10-14 11:19:30,131 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:19:30,131 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:19:30,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 11:19:30,133 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:19:30,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:19:30,133 INFO L85 PathProgramCache]: Analyzing trace with hash -914743863, now seen corresponding path program 1 times [2024-10-14 11:19:30,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:19:30,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763701646] [2024-10-14 11:19:30,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:19:30,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:19:30,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:19:30,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 11:19:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 11:19:30,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 11:19:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 11:19:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 11:19:30,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:19:30,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 11:19:30,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 11:19:30,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 11:19:30,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 11:19:30,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 11:19:30,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 11:19:30,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 11:19:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 11:19:30,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 11:19:30,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 11:19:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 11:19:30,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:19:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:19:30,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:19:30,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 11:19:30,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 11:19:30,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 11:19:30,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 11:19:30,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 11:19:30,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 11:19:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 11:19:30,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:30,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-14 11:19:30,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:19:30,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763701646] [2024-10-14 11:19:30,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763701646] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:19:30,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:19:30,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 11:19:30,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539244026] [2024-10-14 11:19:30,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:19:30,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 11:19:30,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:19:30,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 11:19:30,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 11:19:30,842 INFO L87 Difference]: Start difference. First operand 265 states and 406 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:31,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:19:31,219 INFO L93 Difference]: Finished difference Result 567 states and 864 transitions. [2024-10-14 11:19:31,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 11:19:31,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 188 [2024-10-14 11:19:31,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:19:31,223 INFO L225 Difference]: With dead ends: 567 [2024-10-14 11:19:31,223 INFO L226 Difference]: Without dead ends: 357 [2024-10-14 11:19:31,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 11:19:31,225 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 102 mSDsluCounter, 367 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 11:19:31,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 524 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 11:19:31,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 357 states. [2024-10-14 11:19:31,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 357 to 275. [2024-10-14 11:19:31,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 187 states have (on average 1.3475935828877006) internal successors, (252), 187 states have internal predecessors, (252), 84 states have call successors, (84), 3 states have call predecessors, (84), 3 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-10-14 11:19:31,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 420 transitions. [2024-10-14 11:19:31,267 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 420 transitions. Word has length 188 [2024-10-14 11:19:31,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:19:31,269 INFO L471 AbstractCegarLoop]: Abstraction has 275 states and 420 transitions. [2024-10-14 11:19:31,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:31,269 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 420 transitions. [2024-10-14 11:19:31,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-10-14 11:19:31,272 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:19:31,272 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:19:31,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 11:19:31,273 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:19:31,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:19:31,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1732392313, now seen corresponding path program 1 times [2024-10-14 11:19:31,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:19:31,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149177665] [2024-10-14 11:19:31,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:19:31,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:19:31,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:19:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 11:19:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 11:19:32,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 11:19:32,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 11:19:32,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 11:19:32,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:19:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 11:19:32,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 11:19:32,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 11:19:32,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 11:19:32,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 11:19:32,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 11:19:32,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 11:19:32,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 11:19:32,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 11:19:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,263 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 11:19:32,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,266 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 11:19:32,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:19:32,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:19:32,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:19:32,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 11:19:32,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 11:19:32,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 11:19:32,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 11:19:32,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 11:19:32,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 11:19:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 11:19:32,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:32,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-14 11:19:32,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:19:32,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149177665] [2024-10-14 11:19:32,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149177665] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:19:32,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:19:32,293 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 11:19:32,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423108812] [2024-10-14 11:19:32,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:19:32,294 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 11:19:32,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:19:32,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 11:19:32,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 11:19:32,295 INFO L87 Difference]: Start difference. First operand 275 states and 420 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:33,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:19:33,746 INFO L93 Difference]: Finished difference Result 932 states and 1425 transitions. [2024-10-14 11:19:33,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 11:19:33,747 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 188 [2024-10-14 11:19:33,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:19:33,755 INFO L225 Difference]: With dead ends: 932 [2024-10-14 11:19:33,756 INFO L226 Difference]: Without dead ends: 722 [2024-10-14 11:19:33,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-10-14 11:19:33,758 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 493 mSDsluCounter, 480 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-14 11:19:33,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 716 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-14 11:19:33,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 722 states. [2024-10-14 11:19:33,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 722 to 397. [2024-10-14 11:19:33,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 280 states have (on average 1.375) internal successors, (385), 280 states have internal predecessors, (385), 112 states have call successors, (112), 4 states have call predecessors, (112), 4 states have return successors, (112), 112 states have call predecessors, (112), 112 states have call successors, (112) [2024-10-14 11:19:33,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 609 transitions. [2024-10-14 11:19:33,920 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 609 transitions. Word has length 188 [2024-10-14 11:19:33,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:19:33,921 INFO L471 AbstractCegarLoop]: Abstraction has 397 states and 609 transitions. [2024-10-14 11:19:33,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:33,921 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 609 transitions. [2024-10-14 11:19:33,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-10-14 11:19:33,923 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:19:33,923 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:19:33,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 11:19:33,924 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:19:33,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:19:33,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1551457733, now seen corresponding path program 1 times [2024-10-14 11:19:33,925 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:19:33,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436778071] [2024-10-14 11:19:33,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:19:33,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:19:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:19:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 11:19:34,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 11:19:34,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 11:19:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 11:19:34,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 11:19:34,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:19:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 11:19:34,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 11:19:34,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 11:19:34,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 11:19:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 11:19:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 11:19:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 11:19:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 11:19:34,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 11:19:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 11:19:34,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 11:19:34,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,362 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:19:34,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:19:34,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:19:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 11:19:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 11:19:34,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 11:19:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 11:19:34,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 11:19:34,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 11:19:34,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 11:19:34,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:34,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-14 11:19:34,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:19:34,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436778071] [2024-10-14 11:19:34,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436778071] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:19:34,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:19:34,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 11:19:34,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298193324] [2024-10-14 11:19:34,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:19:34,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 11:19:34,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:19:34,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 11:19:34,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 11:19:34,411 INFO L87 Difference]: Start difference. First operand 397 states and 609 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:35,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:19:35,357 INFO L93 Difference]: Finished difference Result 1271 states and 1952 transitions. [2024-10-14 11:19:35,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 11:19:35,358 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 188 [2024-10-14 11:19:35,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:19:35,364 INFO L225 Difference]: With dead ends: 1271 [2024-10-14 11:19:35,364 INFO L226 Difference]: Without dead ends: 939 [2024-10-14 11:19:35,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-10-14 11:19:35,367 INFO L432 NwaCegarLoop]: 212 mSDtfsCounter, 592 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 401 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 592 SdHoareTripleChecker+Valid, 699 SdHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 401 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 11:19:35,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [592 Valid, 699 Invalid, 543 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 401 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 11:19:35,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 939 states. [2024-10-14 11:19:35,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 939 to 521. [2024-10-14 11:19:35,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 521 states, 375 states have (on average 1.3946666666666667) internal successors, (523), 375 states have internal predecessors, (523), 140 states have call successors, (140), 5 states have call predecessors, (140), 5 states have return successors, (140), 140 states have call predecessors, (140), 140 states have call successors, (140) [2024-10-14 11:19:35,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 521 states to 521 states and 803 transitions. [2024-10-14 11:19:35,511 INFO L78 Accepts]: Start accepts. Automaton has 521 states and 803 transitions. Word has length 188 [2024-10-14 11:19:35,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:19:35,512 INFO L471 AbstractCegarLoop]: Abstraction has 521 states and 803 transitions. [2024-10-14 11:19:35,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:35,512 INFO L276 IsEmpty]: Start isEmpty. Operand 521 states and 803 transitions. [2024-10-14 11:19:35,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-10-14 11:19:35,514 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:19:35,514 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:19:35,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 11:19:35,514 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:19:35,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:19:35,514 INFO L85 PathProgramCache]: Analyzing trace with hash 598425881, now seen corresponding path program 1 times [2024-10-14 11:19:35,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:19:35,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714111276] [2024-10-14 11:19:35,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:19:35,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:19:35,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:19:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 11:19:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 11:19:35,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 11:19:35,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 11:19:35,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 11:19:35,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:19:35,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 11:19:35,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 11:19:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 11:19:35,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 11:19:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 11:19:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 11:19:35,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 11:19:35,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 11:19:35,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 11:19:35,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 11:19:35,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 11:19:35,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:19:35,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:19:35,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:19:35,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 11:19:35,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 11:19:35,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 11:19:35,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 11:19:35,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 11:19:35,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 11:19:35,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 11:19:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:35,843 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-14 11:19:35,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:19:35,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714111276] [2024-10-14 11:19:35,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1714111276] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:19:35,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:19:35,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 11:19:35,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76853450] [2024-10-14 11:19:35,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:19:35,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 11:19:35,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:19:35,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 11:19:35,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 11:19:35,845 INFO L87 Difference]: Start difference. First operand 521 states and 803 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:36,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:19:36,448 INFO L93 Difference]: Finished difference Result 1415 states and 2183 transitions. [2024-10-14 11:19:36,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 11:19:36,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 189 [2024-10-14 11:19:36,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:19:36,456 INFO L225 Difference]: With dead ends: 1415 [2024-10-14 11:19:36,456 INFO L226 Difference]: Without dead ends: 959 [2024-10-14 11:19:36,458 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 11:19:36,459 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 162 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 211 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 11:19:36,459 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 432 Invalid, 211 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 11:19:36,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 959 states. [2024-10-14 11:19:36,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 959 to 957. [2024-10-14 11:19:36,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 695 states have (on average 1.385611510791367) internal successors, (963), 695 states have internal predecessors, (963), 252 states have call successors, (252), 9 states have call predecessors, (252), 9 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-10-14 11:19:36,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1467 transitions. [2024-10-14 11:19:36,768 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1467 transitions. Word has length 189 [2024-10-14 11:19:36,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:19:36,769 INFO L471 AbstractCegarLoop]: Abstraction has 957 states and 1467 transitions. [2024-10-14 11:19:36,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:36,769 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1467 transitions. [2024-10-14 11:19:36,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-10-14 11:19:36,771 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:19:36,772 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:19:36,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 11:19:36,772 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:19:36,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:19:36,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1718455730, now seen corresponding path program 1 times [2024-10-14 11:19:36,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:19:36,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478095077] [2024-10-14 11:19:36,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:19:36,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:19:36,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:19:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 11:19:36,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 11:19:36,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 11:19:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 11:19:36,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 11:19:36,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:19:36,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 11:19:36,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 11:19:36,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 11:19:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 11:19:36,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 11:19:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 11:19:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 11:19:36,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 11:19:36,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 11:19:36,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 11:19:36,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 11:19:36,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:19:36,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:19:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:19:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 11:19:36,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 11:19:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 11:19:36,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 11:19:36,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 11:19:36,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 11:19:36,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 11:19:36,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:36,974 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-14 11:19:36,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:19:36,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478095077] [2024-10-14 11:19:36,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478095077] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:19:36,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:19:36,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 11:19:36,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560043265] [2024-10-14 11:19:36,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:19:36,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 11:19:36,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:19:36,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 11:19:36,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 11:19:36,977 INFO L87 Difference]: Start difference. First operand 957 states and 1467 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:37,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:19:37,347 INFO L93 Difference]: Finished difference Result 1927 states and 2958 transitions. [2024-10-14 11:19:37,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 11:19:37,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 190 [2024-10-14 11:19:37,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:19:37,355 INFO L225 Difference]: With dead ends: 1927 [2024-10-14 11:19:37,355 INFO L226 Difference]: Without dead ends: 1037 [2024-10-14 11:19:37,358 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 11:19:37,359 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 19 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 11:19:37,359 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 279 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 11:19:37,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1037 states. [2024-10-14 11:19:37,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1037 to 957. [2024-10-14 11:19:37,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 695 states have (on average 1.3798561151079136) internal successors, (959), 695 states have internal predecessors, (959), 252 states have call successors, (252), 9 states have call predecessors, (252), 9 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-10-14 11:19:37,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1463 transitions. [2024-10-14 11:19:37,629 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1463 transitions. Word has length 190 [2024-10-14 11:19:37,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:19:37,629 INFO L471 AbstractCegarLoop]: Abstraction has 957 states and 1463 transitions. [2024-10-14 11:19:37,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:37,630 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1463 transitions. [2024-10-14 11:19:37,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-10-14 11:19:37,633 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:19:37,633 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:19:37,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 11:19:37,633 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:19:37,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:19:37,634 INFO L85 PathProgramCache]: Analyzing trace with hash -11232630, now seen corresponding path program 1 times [2024-10-14 11:19:37,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:19:37,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824688727] [2024-10-14 11:19:37,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:19:37,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:19:37,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:19:38,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 11:19:38,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 11:19:38,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 11:19:38,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 11:19:38,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 11:19:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:19:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 11:19:38,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 11:19:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 11:19:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 11:19:38,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 11:19:38,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 11:19:38,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 11:19:38,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 11:19:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 11:19:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 11:19:38,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 11:19:38,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:19:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:19:38,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:19:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 11:19:38,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:38,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 11:19:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:39,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 11:19:39,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:39,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 11:19:39,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:39,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 11:19:39,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:39,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 11:19:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:39,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 11:19:39,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:39,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-14 11:19:39,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:19:39,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824688727] [2024-10-14 11:19:39,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824688727] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:19:39,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:19:39,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-14 11:19:39,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652148411] [2024-10-14 11:19:39,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:19:39,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-14 11:19:39,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:19:39,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-14 11:19:39,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-14 11:19:39,034 INFO L87 Difference]: Start difference. First operand 957 states and 1463 transitions. Second operand has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:40,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:19:40,023 INFO L93 Difference]: Finished difference Result 2029 states and 3090 transitions. [2024-10-14 11:19:40,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-14 11:19:40,024 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 191 [2024-10-14 11:19:40,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:19:40,031 INFO L225 Difference]: With dead ends: 2029 [2024-10-14 11:19:40,032 INFO L226 Difference]: Without dead ends: 1139 [2024-10-14 11:19:40,035 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-10-14 11:19:40,036 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 229 mSDsluCounter, 613 mSDsCounter, 0 mSdLazyCounter, 281 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 765 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 281 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-14 11:19:40,037 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 765 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 281 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-14 11:19:40,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1139 states. [2024-10-14 11:19:40,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1139 to 1007. [2024-10-14 11:19:40,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 745 states have (on average 1.389261744966443) internal successors, (1035), 745 states have internal predecessors, (1035), 252 states have call successors, (252), 9 states have call predecessors, (252), 9 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-10-14 11:19:40,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1539 transitions. [2024-10-14 11:19:40,257 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1539 transitions. Word has length 191 [2024-10-14 11:19:40,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:19:40,257 INFO L471 AbstractCegarLoop]: Abstraction has 1007 states and 1539 transitions. [2024-10-14 11:19:40,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.0) internal successors, (54), 9 states have internal predecessors, (54), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:40,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1539 transitions. [2024-10-14 11:19:40,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-10-14 11:19:40,261 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:19:40,261 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:19:40,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 11:19:40,262 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:19:40,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:19:40,262 INFO L85 PathProgramCache]: Analyzing trace with hash 283832785, now seen corresponding path program 1 times [2024-10-14 11:19:40,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:19:40,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890207620] [2024-10-14 11:19:40,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:19:40,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:19:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:19:40,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 11:19:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 11:19:40,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 11:19:40,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 11:19:40,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 11:19:40,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,871 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:19:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 11:19:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 11:19:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 11:19:40,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 11:19:40,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 11:19:40,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 11:19:40,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 11:19:40,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 11:19:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 11:19:40,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 11:19:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 11:19:40,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:19:40,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:19:40,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:19:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 11:19:40,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 11:19:40,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 11:19:40,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 11:19:40,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 11:19:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 11:19:40,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 11:19:40,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:40,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-14 11:19:40,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:19:40,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890207620] [2024-10-14 11:19:40,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890207620] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:19:40,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:19:40,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 11:19:40,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458555868] [2024-10-14 11:19:40,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:19:40,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 11:19:40,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:19:40,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 11:19:40,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 11:19:40,918 INFO L87 Difference]: Start difference. First operand 1007 states and 1539 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:42,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:19:42,926 INFO L93 Difference]: Finished difference Result 2293 states and 3500 transitions. [2024-10-14 11:19:42,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 11:19:42,927 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 191 [2024-10-14 11:19:42,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:19:42,940 INFO L225 Difference]: With dead ends: 2293 [2024-10-14 11:19:42,941 INFO L226 Difference]: Without dead ends: 1403 [2024-10-14 11:19:42,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-14 11:19:42,945 INFO L432 NwaCegarLoop]: 375 mSDtfsCounter, 351 mSDsluCounter, 531 mSDsCounter, 0 mSdLazyCounter, 658 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 906 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 658 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-14 11:19:42,946 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 906 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 658 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-14 11:19:42,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1403 states. [2024-10-14 11:19:43,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1403 to 1059. [2024-10-14 11:19:43,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1059 states, 797 states have (on average 1.3889585947302383) internal successors, (1107), 797 states have internal predecessors, (1107), 252 states have call successors, (252), 9 states have call predecessors, (252), 9 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-10-14 11:19:43,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1059 states to 1059 states and 1611 transitions. [2024-10-14 11:19:43,248 INFO L78 Accepts]: Start accepts. Automaton has 1059 states and 1611 transitions. Word has length 191 [2024-10-14 11:19:43,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:19:43,248 INFO L471 AbstractCegarLoop]: Abstraction has 1059 states and 1611 transitions. [2024-10-14 11:19:43,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:43,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1059 states and 1611 transitions. [2024-10-14 11:19:43,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-10-14 11:19:43,251 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:19:43,251 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:19:43,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-14 11:19:43,251 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:19:43,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:19:43,252 INFO L85 PathProgramCache]: Analyzing trace with hash -745679196, now seen corresponding path program 1 times [2024-10-14 11:19:43,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:19:43,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791338201] [2024-10-14 11:19:43,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:19:43,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:19:43,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:19:43,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 11:19:43,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 11:19:43,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 11:19:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 11:19:43,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 11:19:43,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:19:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 11:19:43,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 11:19:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 11:19:43,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 11:19:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 11:19:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 11:19:43,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 11:19:43,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 11:19:43,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 11:19:43,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 11:19:43,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 11:19:43,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:19:43,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:19:43,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:19:43,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 11:19:43,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 11:19:43,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 11:19:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 11:19:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 11:19:43,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 11:19:43,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 11:19:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:43,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 153 proven. 3 refuted. 0 times theorem prover too weak. 1356 trivial. 0 not checked. [2024-10-14 11:19:43,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:19:43,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791338201] [2024-10-14 11:19:43,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791338201] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 11:19:43,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721652255] [2024-10-14 11:19:43,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:19:43,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 11:19:43,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:19:43,989 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 11:19:43,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 11:19:44,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:44,155 INFO L255 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 11:19:44,167 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 11:19:44,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-14 11:19:44,287 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 11:19:44,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721652255] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:19:44,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 11:19:44,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-10-14 11:19:44,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178403100] [2024-10-14 11:19:44,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:19:44,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 11:19:44,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:19:44,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 11:19:44,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-14 11:19:44,289 INFO L87 Difference]: Start difference. First operand 1059 states and 1611 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:45,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:19:45,149 INFO L93 Difference]: Finished difference Result 2753 states and 4195 transitions. [2024-10-14 11:19:45,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 11:19:45,149 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 191 [2024-10-14 11:19:45,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:19:45,160 INFO L225 Difference]: With dead ends: 2753 [2024-10-14 11:19:45,161 INFO L226 Difference]: Without dead ends: 1795 [2024-10-14 11:19:45,164 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-10-14 11:19:45,165 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 212 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 1082 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 11:19:45,165 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 1082 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 11:19:45,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1795 states. [2024-10-14 11:19:45,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1795 to 1531. [2024-10-14 11:19:45,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1531 states, 1153 states have (on average 1.3677363399826539) internal successors, (1577), 1153 states have internal predecessors, (1577), 364 states have call successors, (364), 13 states have call predecessors, (364), 13 states have return successors, (364), 364 states have call predecessors, (364), 364 states have call successors, (364) [2024-10-14 11:19:45,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1531 states to 1531 states and 2305 transitions. [2024-10-14 11:19:45,492 INFO L78 Accepts]: Start accepts. Automaton has 1531 states and 2305 transitions. Word has length 191 [2024-10-14 11:19:45,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:19:45,493 INFO L471 AbstractCegarLoop]: Abstraction has 1531 states and 2305 transitions. [2024-10-14 11:19:45,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:45,494 INFO L276 IsEmpty]: Start isEmpty. Operand 1531 states and 2305 transitions. [2024-10-14 11:19:45,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-10-14 11:19:45,496 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:19:45,496 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:19:45,514 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 11:19:45,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-14 11:19:45,701 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:19:45,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:19:45,701 INFO L85 PathProgramCache]: Analyzing trace with hash 876541140, now seen corresponding path program 1 times [2024-10-14 11:19:45,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:19:45,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448233352] [2024-10-14 11:19:45,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:19:45,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:19:45,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:19:46,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 11:19:46,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,012 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 11:19:46,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 11:19:46,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 11:19:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 11:19:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:19:46,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 11:19:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 11:19:46,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 11:19:46,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 11:19:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 11:19:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 11:19:46,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 11:19:46,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 11:19:46,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 11:19:46,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 11:19:46,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 11:19:46,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:19:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:19:46,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:19:46,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 11:19:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 11:19:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 11:19:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 11:19:46,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 11:19:46,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 11:19:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 11:19:46,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:46,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-14 11:19:46,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:19:46,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448233352] [2024-10-14 11:19:46,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448233352] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:19:46,062 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:19:46,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 11:19:46,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910161813] [2024-10-14 11:19:46,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:19:46,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 11:19:46,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:19:46,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 11:19:46,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-14 11:19:46,063 INFO L87 Difference]: Start difference. First operand 1531 states and 2305 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:47,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:19:47,613 INFO L93 Difference]: Finished difference Result 4357 states and 6591 transitions. [2024-10-14 11:19:47,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 11:19:47,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 192 [2024-10-14 11:19:47,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:19:47,630 INFO L225 Difference]: With dead ends: 4357 [2024-10-14 11:19:47,630 INFO L226 Difference]: Without dead ends: 2959 [2024-10-14 11:19:47,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-14 11:19:47,637 INFO L432 NwaCegarLoop]: 349 mSDtfsCounter, 279 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 459 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 279 SdHoareTripleChecker+Valid, 858 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 459 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 11:19:47,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [279 Valid, 858 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 459 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 11:19:47,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2959 states. [2024-10-14 11:19:48,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2959 to 2141. [2024-10-14 11:19:48,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2141 states, 1647 states have (on average 1.366120218579235) internal successors, (2250), 1647 states have internal predecessors, (2250), 476 states have call successors, (476), 17 states have call predecessors, (476), 17 states have return successors, (476), 476 states have call predecessors, (476), 476 states have call successors, (476) [2024-10-14 11:19:48,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2141 states to 2141 states and 3202 transitions. [2024-10-14 11:19:48,121 INFO L78 Accepts]: Start accepts. Automaton has 2141 states and 3202 transitions. Word has length 192 [2024-10-14 11:19:48,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:19:48,122 INFO L471 AbstractCegarLoop]: Abstraction has 2141 states and 3202 transitions. [2024-10-14 11:19:48,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:48,122 INFO L276 IsEmpty]: Start isEmpty. Operand 2141 states and 3202 transitions. [2024-10-14 11:19:48,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-10-14 11:19:48,125 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:19:48,126 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:19:48,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-14 11:19:48,126 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:19:48,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:19:48,127 INFO L85 PathProgramCache]: Analyzing trace with hash -711806762, now seen corresponding path program 1 times [2024-10-14 11:19:48,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:19:48,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597542951] [2024-10-14 11:19:48,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:19:48,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:19:48,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:19:48,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 11:19:48,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 11:19:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 11:19:48,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 11:19:48,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 11:19:48,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:19:48,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 11:19:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 11:19:48,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 11:19:48,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 11:19:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 11:19:48,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 11:19:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 11:19:48,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 11:19:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 11:19:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 11:19:48,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 11:19:48,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:19:48,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:19:48,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:19:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 11:19:48,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 11:19:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 11:19:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 11:19:48,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 11:19:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 11:19:48,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 11:19:48,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:48,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-14 11:19:48,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:19:48,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597542951] [2024-10-14 11:19:48,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597542951] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:19:48,982 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:19:48,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 11:19:48,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693000112] [2024-10-14 11:19:48,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:19:48,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 11:19:48,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:19:48,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 11:19:48,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-14 11:19:48,984 INFO L87 Difference]: Start difference. First operand 2141 states and 3202 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:50,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:19:50,977 INFO L93 Difference]: Finished difference Result 4601 states and 6892 transitions. [2024-10-14 11:19:50,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 11:19:50,979 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 192 [2024-10-14 11:19:50,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:19:50,995 INFO L225 Difference]: With dead ends: 4601 [2024-10-14 11:19:50,995 INFO L226 Difference]: Without dead ends: 2627 [2024-10-14 11:19:51,001 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-10-14 11:19:51,002 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 411 mSDsluCounter, 675 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 1046 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-14 11:19:51,002 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 1046 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-14 11:19:51,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states. [2024-10-14 11:19:51,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 2151. [2024-10-14 11:19:51,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2151 states, 1657 states have (on average 1.3663246831623417) internal successors, (2264), 1657 states have internal predecessors, (2264), 476 states have call successors, (476), 17 states have call predecessors, (476), 17 states have return successors, (476), 476 states have call predecessors, (476), 476 states have call successors, (476) [2024-10-14 11:19:51,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2151 states to 2151 states and 3216 transitions. [2024-10-14 11:19:51,461 INFO L78 Accepts]: Start accepts. Automaton has 2151 states and 3216 transitions. Word has length 192 [2024-10-14 11:19:51,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:19:51,462 INFO L471 AbstractCegarLoop]: Abstraction has 2151 states and 3216 transitions. [2024-10-14 11:19:51,462 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:51,462 INFO L276 IsEmpty]: Start isEmpty. Operand 2151 states and 3216 transitions. [2024-10-14 11:19:51,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-10-14 11:19:51,465 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:19:51,465 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:19:51,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-14 11:19:51,465 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:19:51,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:19:51,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1849495547, now seen corresponding path program 1 times [2024-10-14 11:19:51,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:19:51,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371141896] [2024-10-14 11:19:51,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:19:51,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:19:51,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:51,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:19:51,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:51,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 11:19:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:51,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 11:19:51,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:51,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 11:19:51,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:51,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 11:19:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:51,984 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 11:19:51,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:51,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:19:51,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:51,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 11:19:51,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:51,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 11:19:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:51,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 11:19:51,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:51,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 11:19:51,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:51,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 11:19:51,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:51,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 11:19:51,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:51,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 11:19:51,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:51,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 11:19:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:51,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 11:19:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:51,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 11:19:52,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:52,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 11:19:52,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:52,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:19:52,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:52,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:19:52,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:52,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:19:52,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:52,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 11:19:52,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:52,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 11:19:52,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:52,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 11:19:52,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:52,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 11:19:52,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:52,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 11:19:52,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:52,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 11:19:52,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:52,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 11:19:52,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:52,048 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 153 proven. 3 refuted. 0 times theorem prover too weak. 1356 trivial. 0 not checked. [2024-10-14 11:19:52,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:19:52,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371141896] [2024-10-14 11:19:52,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371141896] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 11:19:52,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825173463] [2024-10-14 11:19:52,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:19:52,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 11:19:52,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:19:52,051 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 11:19:52,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 11:19:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:52,206 INFO L255 TraceCheckSpWp]: Trace formula consists of 458 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-14 11:19:52,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 11:19:52,375 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 283 proven. 3 refuted. 0 times theorem prover too weak. 1226 trivial. 0 not checked. [2024-10-14 11:19:52,378 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 11:19:52,730 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 153 proven. 6 refuted. 0 times theorem prover too weak. 1353 trivial. 0 not checked. [2024-10-14 11:19:52,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825173463] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 11:19:52,731 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 11:19:52,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9, 9] total 15 [2024-10-14 11:19:52,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938984055] [2024-10-14 11:19:52,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 11:19:52,734 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 11:19:52,734 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:19:52,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 11:19:52,735 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2024-10-14 11:19:52,736 INFO L87 Difference]: Start difference. First operand 2151 states and 3216 transitions. Second operand has 15 states, 15 states have (on average 5.066666666666666) internal successors, (76), 15 states have internal predecessors, (76), 2 states have call successors, (30), 2 states have call predecessors, (30), 6 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2024-10-14 11:19:53,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:19:53,812 INFO L93 Difference]: Finished difference Result 3369 states and 4935 transitions. [2024-10-14 11:19:53,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-14 11:19:53,813 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.066666666666666) internal successors, (76), 15 states have internal predecessors, (76), 2 states have call successors, (30), 2 states have call predecessors, (30), 6 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 192 [2024-10-14 11:19:53,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:19:53,823 INFO L225 Difference]: With dead ends: 3369 [2024-10-14 11:19:53,823 INFO L226 Difference]: Without dead ends: 1290 [2024-10-14 11:19:53,829 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 432 SyntacticMatches, 3 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=242, Invalid=514, Unknown=0, NotChecked=0, Total=756 [2024-10-14 11:19:53,829 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 201 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 331 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 11:19:53,830 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 504 Invalid, 450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 331 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 11:19:53,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1290 states. [2024-10-14 11:19:54,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1290 to 1216. [2024-10-14 11:19:54,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1216 states, 936 states have (on average 1.3215811965811965) internal successors, (1237), 936 states have internal predecessors, (1237), 252 states have call successors, (252), 27 states have call predecessors, (252), 27 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-10-14 11:19:54,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1741 transitions. [2024-10-14 11:19:54,225 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1741 transitions. Word has length 192 [2024-10-14 11:19:54,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:19:54,225 INFO L471 AbstractCegarLoop]: Abstraction has 1216 states and 1741 transitions. [2024-10-14 11:19:54,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.066666666666666) internal successors, (76), 15 states have internal predecessors, (76), 2 states have call successors, (30), 2 states have call predecessors, (30), 6 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2024-10-14 11:19:54,226 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1741 transitions. [2024-10-14 11:19:54,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-10-14 11:19:54,228 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:19:54,228 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:19:54,246 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 11:19:54,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-14 11:19:54,429 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:19:54,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:19:54,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1194694613, now seen corresponding path program 1 times [2024-10-14 11:19:54,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:19:54,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490438357] [2024-10-14 11:19:54,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:19:54,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:19:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:19:55,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 11:19:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 11:19:55,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 11:19:55,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 11:19:55,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 11:19:55,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:19:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 11:19:55,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 11:19:55,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 11:19:55,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 11:19:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 11:19:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 11:19:55,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 11:19:55,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 11:19:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 11:19:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 11:19:55,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 11:19:55,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:19:55,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:19:55,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:19:55,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 11:19:55,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 11:19:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 11:19:55,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 11:19:55,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 11:19:55,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 11:19:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 11:19:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:55,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-14 11:19:55,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:19:55,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490438357] [2024-10-14 11:19:55,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490438357] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:19:55,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:19:55,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 11:19:55,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226236058] [2024-10-14 11:19:55,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:19:55,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 11:19:55,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:19:55,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 11:19:55,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-10-14 11:19:55,098 INFO L87 Difference]: Start difference. First operand 1216 states and 1741 transitions. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:56,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:19:56,230 INFO L93 Difference]: Finished difference Result 2512 states and 3590 transitions. [2024-10-14 11:19:56,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 11:19:56,231 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 193 [2024-10-14 11:19:56,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:19:56,240 INFO L225 Difference]: With dead ends: 2512 [2024-10-14 11:19:56,240 INFO L226 Difference]: Without dead ends: 1422 [2024-10-14 11:19:56,242 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-10-14 11:19:56,243 INFO L432 NwaCegarLoop]: 219 mSDtfsCounter, 300 mSDsluCounter, 368 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 300 SdHoareTripleChecker+Valid, 587 SdHoareTripleChecker+Invalid, 362 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-14 11:19:56,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [300 Valid, 587 Invalid, 362 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-14 11:19:56,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2024-10-14 11:19:56,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 1234. [2024-10-14 11:19:56,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1234 states, 954 states have (on average 1.3186582809224319) internal successors, (1258), 954 states have internal predecessors, (1258), 252 states have call successors, (252), 27 states have call predecessors, (252), 27 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-10-14 11:19:56,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 1762 transitions. [2024-10-14 11:19:56,616 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 1762 transitions. Word has length 193 [2024-10-14 11:19:56,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:19:56,617 INFO L471 AbstractCegarLoop]: Abstraction has 1234 states and 1762 transitions. [2024-10-14 11:19:56,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:56,617 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 1762 transitions. [2024-10-14 11:19:56,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2024-10-14 11:19:56,619 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:19:56,619 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:19:56,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-14 11:19:56,619 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:19:56,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:19:56,620 INFO L85 PathProgramCache]: Analyzing trace with hash -799450093, now seen corresponding path program 1 times [2024-10-14 11:19:56,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:19:56,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853786319] [2024-10-14 11:19:56,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:19:56,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:19:56,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 11:19:57,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 11:19:57,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 11:19:57,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 11:19:57,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-14 11:19:57,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-14 11:19:57,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-14 11:19:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-14 11:19:57,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-14 11:19:57,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2024-10-14 11:19:57,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-14 11:19:57,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-14 11:19:57,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-10-14 11:19:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-14 11:19:57,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-14 11:19:57,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-14 11:19:57,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-14 11:19:57,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-14 11:19:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-14 11:19:57,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-14 11:19:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 11:19:57,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 11:19:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 11:19:57,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 11:19:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 11:19:57,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 11:19:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 11:19:57,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 11:19:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:57,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-10-14 11:19:57,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 11:19:57,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853786319] [2024-10-14 11:19:57,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853786319] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 11:19:57,337 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 11:19:57,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 11:19:57,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513254498] [2024-10-14 11:19:57,337 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 11:19:57,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 11:19:57,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 11:19:57,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 11:19:57,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 11:19:57,339 INFO L87 Difference]: Start difference. First operand 1234 states and 1762 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:58,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 11:19:58,510 INFO L93 Difference]: Finished difference Result 2530 states and 3607 transitions. [2024-10-14 11:19:58,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 11:19:58,511 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 193 [2024-10-14 11:19:58,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 11:19:58,520 INFO L225 Difference]: With dead ends: 2530 [2024-10-14 11:19:58,520 INFO L226 Difference]: Without dead ends: 1422 [2024-10-14 11:19:58,523 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-14 11:19:58,523 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 338 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 398 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 338 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 398 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-14 11:19:58,524 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [338 Valid, 644 Invalid, 455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 398 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-14 11:19:58,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1422 states. [2024-10-14 11:19:58,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1422 to 1206. [2024-10-14 11:19:58,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 926 states have (on average 1.3131749460043196) internal successors, (1216), 926 states have internal predecessors, (1216), 252 states have call successors, (252), 27 states have call predecessors, (252), 27 states have return successors, (252), 252 states have call predecessors, (252), 252 states have call successors, (252) [2024-10-14 11:19:58,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1720 transitions. [2024-10-14 11:19:58,895 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1720 transitions. Word has length 193 [2024-10-14 11:19:58,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 11:19:58,895 INFO L471 AbstractCegarLoop]: Abstraction has 1206 states and 1720 transitions. [2024-10-14 11:19:58,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-10-14 11:19:58,896 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1720 transitions. [2024-10-14 11:19:58,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2024-10-14 11:19:58,897 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 11:19:58,897 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 11:19:58,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-14 11:19:58,897 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 11:19:58,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 11:19:58,898 INFO L85 PathProgramCache]: Analyzing trace with hash 713531852, now seen corresponding path program 1 times [2024-10-14 11:19:58,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 11:19:58,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234791300] [2024-10-14 11:19:58,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:19:58,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 11:19:59,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-14 11:19:59,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [442064474] [2024-10-14 11:19:59,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 11:19:59,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 11:19:59,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 11:19:59,042 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 11:19:59,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-14 11:19:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 11:19:59,430 INFO L255 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 52 conjuncts are in the unsatisfiable core [2024-10-14 11:19:59,437 INFO L278 TraceCheckSpWp]: Computing forward predicates...