./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-85.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-85.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 6afecf8b719ebabe0f5d950a91928c70dceb2d3c076eae572c5fd9dee7e38018 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 00:29:17,291 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 00:29:17,382 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 00:29:17,389 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 00:29:17,389 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 00:29:17,416 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 00:29:17,418 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 00:29:17,418 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 00:29:17,418 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 00:29:17,419 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 00:29:17,419 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 00:29:17,420 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 00:29:17,421 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 00:29:17,421 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 00:29:17,423 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 00:29:17,423 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 00:29:17,423 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 00:29:17,424 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 00:29:17,424 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 00:29:17,424 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 00:29:17,427 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 00:29:17,428 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 00:29:17,428 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 00:29:17,428 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 00:29:17,428 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 00:29:17,429 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 00:29:17,429 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 00:29:17,429 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 00:29:17,429 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 00:29:17,430 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 00:29:17,430 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 00:29:17,430 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 00:29:17,430 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:29:17,431 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 00:29:17,431 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 00:29:17,431 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 00:29:17,431 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 00:29:17,431 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 00:29:17,431 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 00:29:17,432 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 00:29:17,432 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 00:29:17,432 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 00:29:17,432 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6afecf8b719ebabe0f5d950a91928c70dceb2d3c076eae572c5fd9dee7e38018 [2024-11-19 00:29:17,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 00:29:17,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 00:29:17,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 00:29:17,680 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 00:29:17,680 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 00:29:17,681 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-85.i [2024-11-19 00:29:19,080 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 00:29:19,266 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 00:29:19,268 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-85.i [2024-11-19 00:29:19,277 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba5524f71/a530610bd96e486882695529a6386b57/FLAG35ff3b0e0 [2024-11-19 00:29:19,289 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba5524f71/a530610bd96e486882695529a6386b57 [2024-11-19 00:29:19,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 00:29:19,292 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 00:29:19,294 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 00:29:19,294 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 00:29:19,299 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 00:29:19,299 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:29:19" (1/1) ... [2024-11-19 00:29:19,300 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@783ede5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:29:19, skipping insertion in model container [2024-11-19 00:29:19,301 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 12:29:19" (1/1) ... [2024-11-19 00:29:19,332 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 00:29:19,501 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-85.i[913,926] [2024-11-19 00:29:19,560 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:29:19,568 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 00:29:19,578 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_normal_file-85.i[913,926] [2024-11-19 00:29:19,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 00:29:19,614 INFO L204 MainTranslator]: Completed translation [2024-11-19 00:29:19,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:29:19 WrapperNode [2024-11-19 00:29:19,615 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 00:29:19,616 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 00:29:19,616 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 00:29:19,616 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 00:29:19,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:29:19" (1/1) ... [2024-11-19 00:29:19,630 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:29:19" (1/1) ... [2024-11-19 00:29:19,677 INFO L138 Inliner]: procedures = 26, calls = 36, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 126 [2024-11-19 00:29:19,678 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 00:29:19,679 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 00:29:19,679 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 00:29:19,680 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 00:29:19,689 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:29:19" (1/1) ... [2024-11-19 00:29:19,689 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:29:19" (1/1) ... [2024-11-19 00:29:19,692 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:29:19" (1/1) ... [2024-11-19 00:29:19,705 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 00:29:19,706 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:29:19" (1/1) ... [2024-11-19 00:29:19,706 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:29:19" (1/1) ... [2024-11-19 00:29:19,713 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:29:19" (1/1) ... [2024-11-19 00:29:19,718 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:29:19" (1/1) ... [2024-11-19 00:29:19,720 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:29:19" (1/1) ... [2024-11-19 00:29:19,721 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:29:19" (1/1) ... [2024-11-19 00:29:19,725 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 00:29:19,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 00:29:19,726 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 00:29:19,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 00:29:19,727 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:29:19" (1/1) ... [2024-11-19 00:29:19,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 00:29:19,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:29:19,763 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 00:29:19,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 00:29:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 00:29:19,815 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 00:29:19,816 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 00:29:19,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 00:29:19,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 00:29:19,817 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 00:29:19,889 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 00:29:19,890 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 00:29:20,149 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-19 00:29:20,149 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 00:29:20,162 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 00:29:20,163 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 00:29:20,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:29:20 BoogieIcfgContainer [2024-11-19 00:29:20,164 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 00:29:20,166 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 00:29:20,166 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 00:29:20,169 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 00:29:20,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 12:29:19" (1/3) ... [2024-11-19 00:29:20,171 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76d4c324 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:29:20, skipping insertion in model container [2024-11-19 00:29:20,171 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 12:29:19" (2/3) ... [2024-11-19 00:29:20,172 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76d4c324 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 12:29:20, skipping insertion in model container [2024-11-19 00:29:20,172 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 12:29:20" (3/3) ... [2024-11-19 00:29:20,173 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_normal_file-85.i [2024-11-19 00:29:20,190 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 00:29:20,190 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 00:29:20,262 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 00:29:20,270 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;@235c9408, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 00:29:20,270 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 00:29:20,275 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 33 states have (on average 1.303030303030303) internal successors, (43), 34 states have internal predecessors, (43), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-19 00:29:20,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 00:29:20,293 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:29:20,293 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:29:20,294 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:29:20,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:29:20,299 INFO L85 PathProgramCache]: Analyzing trace with hash 2080080809, now seen corresponding path program 1 times [2024-11-19 00:29:20,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:29:20,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267479354] [2024-11-19 00:29:20,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:29:20,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:29:20,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:29:20,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2024-11-19 00:29:20,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:29:20,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267479354] [2024-11-19 00:29:20,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267479354] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 00:29:20,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146180890] [2024-11-19 00:29:20,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:29:20,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 00:29:20,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 00:29:20,707 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 00:29:20,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 00:29:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:29:20,860 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 00:29:20,871 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 00:29:20,906 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2024-11-19 00:29:20,909 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 00:29:20,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146180890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:29:20,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 00:29:20,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 00:29:20,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949373804] [2024-11-19 00:29:20,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:29:20,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 00:29:20,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:29:20,938 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 00:29:20,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:29:20,940 INFO L87 Difference]: Start difference. First operand has 59 states, 33 states have (on average 1.303030303030303) internal successors, (43), 34 states have internal predecessors, (43), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-19 00:29:20,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:29:20,964 INFO L93 Difference]: Finished difference Result 111 states and 195 transitions. [2024-11-19 00:29:20,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 00:29:20,966 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) Word has length 139 [2024-11-19 00:29:20,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:29:20,972 INFO L225 Difference]: With dead ends: 111 [2024-11-19 00:29:20,972 INFO L226 Difference]: Without dead ends: 55 [2024-11-19 00:29:20,975 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 00:29:20,978 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:29:20,978 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 00:29:20,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-19 00:29:21,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-11-19 00:29:21,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 30 states have (on average 1.2) internal successors, (36), 30 states have internal predecessors, (36), 23 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-11-19 00:29:21,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 82 transitions. [2024-11-19 00:29:21,016 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 82 transitions. Word has length 139 [2024-11-19 00:29:21,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:29:21,016 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 82 transitions. [2024-11-19 00:29:21,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (23), 2 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 2 states have call successors, (23) [2024-11-19 00:29:21,017 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 82 transitions. [2024-11-19 00:29:21,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 00:29:21,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:29:21,020 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:29:21,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 00:29:21,220 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,SelfDestructingSolverStorable0 [2024-11-19 00:29:21,221 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:29:21,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:29:21,221 INFO L85 PathProgramCache]: Analyzing trace with hash 765421479, now seen corresponding path program 1 times [2024-11-19 00:29:21,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:29:21,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881343740] [2024-11-19 00:29:21,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:29:21,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:29:21,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:29:28,463 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 00:29:28,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:29:28,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881343740] [2024-11-19 00:29:28,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881343740] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:29:28,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:29:28,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 00:29:28,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8054555] [2024-11-19 00:29:28,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:29:28,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:29:28,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:29:28,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:29:28,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:29:28,470 INFO L87 Difference]: Start difference. First operand 55 states and 82 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 00:29:30,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:29:30,233 INFO L93 Difference]: Finished difference Result 103 states and 138 transitions. [2024-11-19 00:29:30,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:29:30,233 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 139 [2024-11-19 00:29:30,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:29:30,236 INFO L225 Difference]: With dead ends: 103 [2024-11-19 00:29:30,236 INFO L226 Difference]: Without dead ends: 101 [2024-11-19 00:29:30,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:29:30,237 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 71 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 00:29:30,238 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 429 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 00:29:30,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-19 00:29:30,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 69. [2024-11-19 00:29:30,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 41 states have (on average 1.1951219512195121) internal successors, (49), 42 states have internal predecessors, (49), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 00:29:30,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 99 transitions. [2024-11-19 00:29:30,257 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 99 transitions. Word has length 139 [2024-11-19 00:29:30,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:29:30,257 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 99 transitions. [2024-11-19 00:29:30,258 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 00:29:30,258 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 99 transitions. [2024-11-19 00:29:30,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-19 00:29:30,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:29:30,260 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:29:30,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 00:29:30,261 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:29:30,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:29:30,262 INFO L85 PathProgramCache]: Analyzing trace with hash -43925147, now seen corresponding path program 1 times [2024-11-19 00:29:30,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:29:30,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1210054726] [2024-11-19 00:29:30,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:29:30,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:29:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:29:35,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 00:29:35,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:29:35,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1210054726] [2024-11-19 00:29:35,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1210054726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:29:35,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:29:35,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 00:29:35,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916260625] [2024-11-19 00:29:35,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:29:35,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 00:29:35,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:29:35,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 00:29:35,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-19 00:29:35,598 INFO L87 Difference]: Start difference. First operand 69 states and 99 transitions. Second operand has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 00:29:37,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:29:37,039 INFO L93 Difference]: Finished difference Result 108 states and 144 transitions. [2024-11-19 00:29:37,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:29:37,039 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 139 [2024-11-19 00:29:37,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:29:37,042 INFO L225 Difference]: With dead ends: 108 [2024-11-19 00:29:37,042 INFO L226 Difference]: Without dead ends: 106 [2024-11-19 00:29:37,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:29:37,043 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 72 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 00:29:37,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 400 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 00:29:37,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-19 00:29:37,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 67. [2024-11-19 00:29:37,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 39 states have (on average 1.1794871794871795) internal successors, (46), 40 states have internal predecessors, (46), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 00:29:37,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 96 transitions. [2024-11-19 00:29:37,060 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 96 transitions. Word has length 139 [2024-11-19 00:29:37,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:29:37,061 INFO L471 AbstractCegarLoop]: Abstraction has 67 states and 96 transitions. [2024-11-19 00:29:37,062 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.0) internal successors, (27), 9 states have internal predecessors, (27), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 00:29:37,062 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 96 transitions. [2024-11-19 00:29:37,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 00:29:37,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:29:37,066 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:29:37,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 00:29:37,066 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:29:37,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:29:37,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1988236148, now seen corresponding path program 1 times [2024-11-19 00:29:37,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:29:37,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908526094] [2024-11-19 00:29:37,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:29:37,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:29:37,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:29:42,913 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 00:29:42,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:29:42,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908526094] [2024-11-19 00:29:42,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908526094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:29:42,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:29:42,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:29:42,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560882409] [2024-11-19 00:29:42,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:29:42,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:29:42,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:29:42,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:29:42,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:29:42,916 INFO L87 Difference]: Start difference. First operand 67 states and 96 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 00:29:45,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:29:45,601 INFO L93 Difference]: Finished difference Result 117 states and 153 transitions. [2024-11-19 00:29:45,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:29:45,602 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 140 [2024-11-19 00:29:45,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:29:45,604 INFO L225 Difference]: With dead ends: 117 [2024-11-19 00:29:45,605 INFO L226 Difference]: Without dead ends: 115 [2024-11-19 00:29:45,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:29:45,606 INFO L432 NwaCegarLoop]: 83 mSDtfsCounter, 91 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 00:29:45,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 379 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 00:29:45,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-19 00:29:45,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 71. [2024-11-19 00:29:45,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 43 states have (on average 1.2325581395348837) internal successors, (53), 44 states have internal predecessors, (53), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 00:29:45,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 103 transitions. [2024-11-19 00:29:45,624 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 103 transitions. Word has length 140 [2024-11-19 00:29:45,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:29:45,625 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 103 transitions. [2024-11-19 00:29:45,625 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 00:29:45,625 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 103 transitions. [2024-11-19 00:29:45,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 00:29:45,627 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:29:45,627 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:29:45,627 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 00:29:45,627 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:29:45,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:29:45,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1986389106, now seen corresponding path program 1 times [2024-11-19 00:29:45,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:29:45,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849085205] [2024-11-19 00:29:45,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:29:45,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:29:45,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:29:50,067 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 00:29:50,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:29:50,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849085205] [2024-11-19 00:29:50,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849085205] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:29:50,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:29:50,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:29:50,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665441294] [2024-11-19 00:29:50,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:29:50,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:29:50,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:29:50,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:29:50,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:29:50,071 INFO L87 Difference]: Start difference. First operand 71 states and 103 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 00:29:53,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:29:53,233 INFO L93 Difference]: Finished difference Result 130 states and 170 transitions. [2024-11-19 00:29:53,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 00:29:53,233 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 140 [2024-11-19 00:29:53,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:29:53,235 INFO L225 Difference]: With dead ends: 130 [2024-11-19 00:29:53,235 INFO L226 Difference]: Without dead ends: 128 [2024-11-19 00:29:53,236 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=69, Invalid=141, Unknown=0, NotChecked=0, Total=210 [2024-11-19 00:29:53,237 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 85 mSDsluCounter, 390 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 00:29:53,237 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 496 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 00:29:53,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2024-11-19 00:29:53,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 74. [2024-11-19 00:29:53,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 46 states have (on average 1.2826086956521738) internal successors, (59), 47 states have internal predecessors, (59), 25 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (25), 24 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 00:29:53,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 109 transitions. [2024-11-19 00:29:53,253 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 109 transitions. Word has length 140 [2024-11-19 00:29:53,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:29:53,254 INFO L471 AbstractCegarLoop]: Abstraction has 74 states and 109 transitions. [2024-11-19 00:29:53,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 00:29:53,254 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 109 transitions. [2024-11-19 00:29:53,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 00:29:53,256 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:29:53,256 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:29:53,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 00:29:53,257 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:29:53,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:29:53,257 INFO L85 PathProgramCache]: Analyzing trace with hash -760610968, now seen corresponding path program 1 times [2024-11-19 00:29:53,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:29:53,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623270694] [2024-11-19 00:29:53,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:29:53,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:29:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:29:59,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 00:29:59,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:29:59,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623270694] [2024-11-19 00:29:59,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623270694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:29:59,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:29:59,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:29:59,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411639707] [2024-11-19 00:29:59,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:29:59,096 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:29:59,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:29:59,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:29:59,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:29:59,098 INFO L87 Difference]: Start difference. First operand 74 states and 109 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 00:30:00,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:30:00,317 INFO L93 Difference]: Finished difference Result 185 states and 258 transitions. [2024-11-19 00:30:00,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:30:00,317 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 140 [2024-11-19 00:30:00,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:30:00,320 INFO L225 Difference]: With dead ends: 185 [2024-11-19 00:30:00,320 INFO L226 Difference]: Without dead ends: 118 [2024-11-19 00:30:00,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-19 00:30:00,321 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 90 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 00:30:00,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 350 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 00:30:00,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-19 00:30:00,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 103. [2024-11-19 00:30:00,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 68 states have (on average 1.2352941176470589) internal successors, (84), 70 states have internal predecessors, (84), 29 states have call successors, (29), 5 states have call predecessors, (29), 5 states have return successors, (29), 27 states have call predecessors, (29), 29 states have call successors, (29) [2024-11-19 00:30:00,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 142 transitions. [2024-11-19 00:30:00,346 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 142 transitions. Word has length 140 [2024-11-19 00:30:00,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:30:00,346 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 142 transitions. [2024-11-19 00:30:00,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 00:30:00,347 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 142 transitions. [2024-11-19 00:30:00,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 00:30:00,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:30:00,348 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:30:00,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 00:30:00,349 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:30:00,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:30:00,349 INFO L85 PathProgramCache]: Analyzing trace with hash -817869270, now seen corresponding path program 1 times [2024-11-19 00:30:00,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:30:00,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067003369] [2024-11-19 00:30:00,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:30:00,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:30:00,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:30:07,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 00:30:07,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:30:07,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067003369] [2024-11-19 00:30:07,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067003369] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:30:07,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:30:07,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:30:07,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543135223] [2024-11-19 00:30:07,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:30:07,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:30:07,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:30:07,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:30:07,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:30:07,478 INFO L87 Difference]: Start difference. First operand 103 states and 142 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 00:30:10,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:30:10,012 INFO L93 Difference]: Finished difference Result 173 states and 221 transitions. [2024-11-19 00:30:10,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:30:10,013 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 140 [2024-11-19 00:30:10,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:30:10,015 INFO L225 Difference]: With dead ends: 173 [2024-11-19 00:30:10,015 INFO L226 Difference]: Without dead ends: 171 [2024-11-19 00:30:10,015 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:30:10,016 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 120 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 120 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 00:30:10,016 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [120 Valid, 455 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 00:30:10,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2024-11-19 00:30:10,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 96. [2024-11-19 00:30:10,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 59 states have (on average 1.2203389830508475) internal successors, (72), 60 states have internal predecessors, (72), 31 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-19 00:30:10,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 134 transitions. [2024-11-19 00:30:10,038 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 134 transitions. Word has length 140 [2024-11-19 00:30:10,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:30:10,039 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 134 transitions. [2024-11-19 00:30:10,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 00:30:10,039 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 134 transitions. [2024-11-19 00:30:10,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 00:30:10,041 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:30:10,041 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:30:10,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 00:30:10,041 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:30:10,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:30:10,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1308177778, now seen corresponding path program 1 times [2024-11-19 00:30:10,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:30:10,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87170621] [2024-11-19 00:30:10,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:30:10,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:30:10,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:30:17,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 00:30:17,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:30:17,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87170621] [2024-11-19 00:30:17,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87170621] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:30:17,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:30:17,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:30:17,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063162411] [2024-11-19 00:30:17,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:30:17,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:30:17,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:30:17,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:30:17,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:30:17,775 INFO L87 Difference]: Start difference. First operand 96 states and 134 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 00:30:20,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:30:20,701 INFO L93 Difference]: Finished difference Result 139 states and 179 transitions. [2024-11-19 00:30:20,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 00:30:20,702 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 140 [2024-11-19 00:30:20,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:30:20,703 INFO L225 Difference]: With dead ends: 139 [2024-11-19 00:30:20,703 INFO L226 Difference]: Without dead ends: 137 [2024-11-19 00:30:20,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:30:20,704 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 73 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-19 00:30:20,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 471 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-19 00:30:20,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-11-19 00:30:20,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 97. [2024-11-19 00:30:20,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 60 states have (on average 1.2333333333333334) internal successors, (74), 61 states have internal predecessors, (74), 31 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-19 00:30:20,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 136 transitions. [2024-11-19 00:30:20,730 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 136 transitions. Word has length 140 [2024-11-19 00:30:20,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:30:20,730 INFO L471 AbstractCegarLoop]: Abstraction has 97 states and 136 transitions. [2024-11-19 00:30:20,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 00:30:20,731 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 136 transitions. [2024-11-19 00:30:20,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 00:30:20,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:30:20,732 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:30:20,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 00:30:20,732 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:30:20,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:30:20,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1306330736, now seen corresponding path program 1 times [2024-11-19 00:30:20,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:30:20,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414487576] [2024-11-19 00:30:20,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:30:20,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:30:20,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:30:23,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 00:30:23,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:30:23,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414487576] [2024-11-19 00:30:23,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414487576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:30:23,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:30:23,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 00:30:23,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32758831] [2024-11-19 00:30:23,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:30:23,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 00:30:23,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:30:23,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 00:30:23,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-19 00:30:23,685 INFO L87 Difference]: Start difference. First operand 97 states and 136 transitions. Second operand has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 00:30:24,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:30:24,167 INFO L93 Difference]: Finished difference Result 148 states and 190 transitions. [2024-11-19 00:30:24,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 00:30:24,168 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 140 [2024-11-19 00:30:24,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:30:24,169 INFO L225 Difference]: With dead ends: 148 [2024-11-19 00:30:24,169 INFO L226 Difference]: Without dead ends: 146 [2024-11-19 00:30:24,170 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:30:24,170 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 73 mSDsluCounter, 392 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 00:30:24,171 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 513 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 00:30:24,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-11-19 00:30:24,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 94. [2024-11-19 00:30:24,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 57 states have (on average 1.1929824561403508) internal successors, (68), 58 states have internal predecessors, (68), 31 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-19 00:30:24,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 130 transitions. [2024-11-19 00:30:24,190 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 130 transitions. Word has length 140 [2024-11-19 00:30:24,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:30:24,190 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 130 transitions. [2024-11-19 00:30:24,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.5) internal successors, (28), 8 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 00:30:24,191 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 130 transitions. [2024-11-19 00:30:24,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 00:30:24,192 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:30:24,192 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:30:24,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 00:30:24,192 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:30:24,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:30:24,193 INFO L85 PathProgramCache]: Analyzing trace with hash -80552598, now seen corresponding path program 1 times [2024-11-19 00:30:24,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:30:24,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754254456] [2024-11-19 00:30:24,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:30:24,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:30:24,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:30:28,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 00:30:28,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:30:28,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754254456] [2024-11-19 00:30:28,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754254456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:30:28,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:30:28,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:30:28,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909182646] [2024-11-19 00:30:28,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:30:28,576 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:30:28,576 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:30:28,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:30:28,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:30:28,577 INFO L87 Difference]: Start difference. First operand 94 states and 130 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 00:30:30,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:30:30,841 INFO L93 Difference]: Finished difference Result 209 states and 281 transitions. [2024-11-19 00:30:30,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:30:30,843 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 140 [2024-11-19 00:30:30,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:30:30,844 INFO L225 Difference]: With dead ends: 209 [2024-11-19 00:30:30,844 INFO L226 Difference]: Without dead ends: 135 [2024-11-19 00:30:30,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:30:30,845 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 79 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 255 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 255 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 00:30:30,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 516 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 255 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 00:30:30,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2024-11-19 00:30:30,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 94. [2024-11-19 00:30:30,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 57 states have (on average 1.1929824561403508) internal successors, (68), 58 states have internal predecessors, (68), 31 states have call successors, (31), 5 states have call predecessors, (31), 5 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-19 00:30:30,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 130 transitions. [2024-11-19 00:30:30,865 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 130 transitions. Word has length 140 [2024-11-19 00:30:30,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:30:30,866 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 130 transitions. [2024-11-19 00:30:30,866 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 00:30:30,866 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 130 transitions. [2024-11-19 00:30:30,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-19 00:30:30,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:30:30,867 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:30:30,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 00:30:30,868 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:30:30,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:30:30,868 INFO L85 PathProgramCache]: Analyzing trace with hash -137810900, now seen corresponding path program 1 times [2024-11-19 00:30:30,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:30:30,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970923197] [2024-11-19 00:30:30,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:30:30,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:30:30,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 00:30:36,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1012 trivial. 0 not checked. [2024-11-19 00:30:36,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 00:30:36,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970923197] [2024-11-19 00:30:36,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [970923197] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 00:30:36,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 00:30:36,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-19 00:30:36,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841078104] [2024-11-19 00:30:36,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 00:30:36,525 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 00:30:36,525 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 00:30:36,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 00:30:36,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-19 00:30:36,526 INFO L87 Difference]: Start difference. First operand 94 states and 130 transitions. Second operand has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 00:30:38,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 00:30:38,566 INFO L93 Difference]: Finished difference Result 140 states and 179 transitions. [2024-11-19 00:30:38,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 00:30:38,566 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) Word has length 140 [2024-11-19 00:30:38,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 00:30:38,567 INFO L225 Difference]: With dead ends: 140 [2024-11-19 00:30:38,567 INFO L226 Difference]: Without dead ends: 138 [2024-11-19 00:30:38,568 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2024-11-19 00:30:38,568 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 92 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 00:30:38,568 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 375 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 00:30:38,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-11-19 00:30:38,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 94. [2024-11-19 00:30:38,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 56 states have (on average 1.1428571428571428) internal successors, (64), 57 states have internal predecessors, (64), 31 states have call successors, (31), 6 states have call predecessors, (31), 6 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-19 00:30:38,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 126 transitions. [2024-11-19 00:30:38,587 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 126 transitions. Word has length 140 [2024-11-19 00:30:38,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 00:30:38,588 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 126 transitions. [2024-11-19 00:30:38,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.8) internal successors, (28), 10 states have internal predecessors, (28), 1 states have call successors, (23), 1 states have call predecessors, (23), 1 states have return successors, (23), 1 states have call predecessors, (23), 1 states have call successors, (23) [2024-11-19 00:30:38,588 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 126 transitions. [2024-11-19 00:30:38,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2024-11-19 00:30:38,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 00:30:38,589 INFO L215 NwaCegarLoop]: trace histogram [23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 00:30:38,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 00:30:38,589 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 00:30:38,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 00:30:38,590 INFO L85 PathProgramCache]: Analyzing trace with hash 469358185, now seen corresponding path program 1 times [2024-11-19 00:30:38,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 00:30:38,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415792113] [2024-11-19 00:30:38,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 00:30:38,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 00:30:38,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat