./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-86.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_fillercode_fillercodesize_ps-cn-50_file-86.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 a806d48a99ead9732da218ab0539f2c78630232c1efa4792aeda8612b71a9641 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 20:06:25,385 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 20:06:25,464 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 20:06:25,472 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 20:06:25,476 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 20:06:25,500 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 20:06:25,500 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 20:06:25,501 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 20:06:25,501 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 20:06:25,504 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 20:06:25,505 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 20:06:25,505 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 20:06:25,505 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 20:06:25,506 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 20:06:25,506 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 20:06:25,508 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 20:06:25,508 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 20:06:25,508 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 20:06:25,508 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 20:06:25,509 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 20:06:25,509 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 20:06:25,509 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 20:06:25,509 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 20:06:25,510 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 20:06:25,510 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 20:06:25,510 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 20:06:25,511 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 20:06:25,511 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 20:06:25,511 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 20:06:25,512 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 20:06:25,512 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 20:06:25,512 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 20:06:25,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 20:06:25,513 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 20:06:25,513 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 20:06:25,513 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 20:06:25,514 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 20:06:25,514 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 20:06:25,514 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 20:06:25,515 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 20:06:25,515 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 20:06:25,515 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 20:06:25,515 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a806d48a99ead9732da218ab0539f2c78630232c1efa4792aeda8612b71a9641 [2024-11-18 20:06:25,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 20:06:25,783 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 20:06:25,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 20:06:25,787 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 20:06:25,788 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 20:06:25,788 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-86.i [2024-11-18 20:06:27,232 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 20:06:27,489 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 20:06:27,490 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-86.i [2024-11-18 20:06:27,513 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/832c766be/04d1ea520456476b99d8dde8a3ba32cf/FLAGe36a9a111 [2024-11-18 20:06:27,544 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/832c766be/04d1ea520456476b99d8dde8a3ba32cf [2024-11-18 20:06:27,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 20:06:27,555 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 20:06:27,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 20:06:27,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 20:06:27,571 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 20:06:27,576 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:06:27" (1/1) ... [2024-11-18 20:06:27,577 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bef941a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:27, skipping insertion in model container [2024-11-18 20:06:27,580 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:06:27" (1/1) ... [2024-11-18 20:06:27,647 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 20:06:27,896 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_fillercode_fillercodesize_ps-cn-50_file-86.i[915,928] [2024-11-18 20:06:27,968 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 20:06:27,981 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 20:06:27,991 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_fillercode_fillercodesize_ps-cn-50_file-86.i[915,928] [2024-11-18 20:06:28,015 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 20:06:28,037 INFO L204 MainTranslator]: Completed translation [2024-11-18 20:06:28,037 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:28 WrapperNode [2024-11-18 20:06:28,038 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 20:06:28,038 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 20:06:28,039 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 20:06:28,039 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 20:06:28,045 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:28" (1/1) ... [2024-11-18 20:06:28,060 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:28" (1/1) ... [2024-11-18 20:06:28,098 INFO L138 Inliner]: procedures = 26, calls = 44, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 248 [2024-11-18 20:06:28,098 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 20:06:28,099 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 20:06:28,099 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 20:06:28,099 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 20:06:28,110 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:28" (1/1) ... [2024-11-18 20:06:28,110 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:28" (1/1) ... [2024-11-18 20:06:28,120 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:28" (1/1) ... [2024-11-18 20:06:28,143 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]. [2024-11-18 20:06:28,146 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:28" (1/1) ... [2024-11-18 20:06:28,146 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:28" (1/1) ... [2024-11-18 20:06:28,159 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:28" (1/1) ... [2024-11-18 20:06:28,164 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:28" (1/1) ... [2024-11-18 20:06:28,171 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:28" (1/1) ... [2024-11-18 20:06:28,175 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:28" (1/1) ... [2024-11-18 20:06:28,181 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 20:06:28,183 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 20:06:28,184 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 20:06:28,184 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 20:06:28,185 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:28" (1/1) ... [2024-11-18 20:06:28,189 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 20:06:28,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 20:06:28,216 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) [2024-11-18 20:06:28,227 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 [2024-11-18 20:06:28,288 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 20:06:28,288 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 20:06:28,288 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 20:06:28,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 20:06:28,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 20:06:28,289 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 20:06:28,396 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 20:06:28,399 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 20:06:28,837 INFO L? ?]: Removed 23 outVars from TransFormulas that were not future-live. [2024-11-18 20:06:28,838 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 20:06:28,849 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 20:06:28,850 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 20:06:28,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:06:28 BoogieIcfgContainer [2024-11-18 20:06:28,851 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 20:06:28,853 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 20:06:28,853 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 20:06:28,857 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 20:06:28,858 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:06:27" (1/3) ... [2024-11-18 20:06:28,859 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8518fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:06:28, skipping insertion in model container [2024-11-18 20:06:28,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:06:28" (2/3) ... [2024-11-18 20:06:28,859 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c8518fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:06:28, skipping insertion in model container [2024-11-18 20:06:28,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:06:28" (3/3) ... [2024-11-18 20:06:28,861 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-86.i [2024-11-18 20:06:28,875 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 20:06:28,876 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 20:06:28,958 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 20:06:28,973 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;@349cec97, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 20:06:28,977 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 20:06:28,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 71 states have internal predecessors, (103), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-18 20:06:29,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-18 20:06:29,006 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:06:29,008 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 20:06:29,009 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:06:29,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:06:29,015 INFO L85 PathProgramCache]: Analyzing trace with hash 750140910, now seen corresponding path program 1 times [2024-11-18 20:06:29,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:06:29,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842322774] [2024-11-18 20:06:29,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:06:29,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:06:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:06:29,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-11-18 20:06:29,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:06:29,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842322774] [2024-11-18 20:06:29,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842322774] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 20:06:29,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167011794] [2024-11-18 20:06:29,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:06:29,356 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 20:06:29,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 20:06:29,359 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) [2024-11-18 20:06:29,361 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 20:06:29,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:06:29,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 472 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 20:06:29,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 20:06:29,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 1800 trivial. 0 not checked. [2024-11-18 20:06:29,561 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 20:06:29,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167011794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:06:29,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 20:06:29,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 20:06:29,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061733771] [2024-11-18 20:06:29,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:06:29,568 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 20:06:29,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:06:29,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 20:06:29,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 20:06:29,591 INFO L87 Difference]: Start difference. First operand has 104 states, 70 states have (on average 1.4714285714285715) internal successors, (103), 71 states have internal predecessors, (103), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-18 20:06:29,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:06:29,618 INFO L93 Difference]: Finished difference Result 201 states and 355 transitions. [2024-11-18 20:06:29,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 20:06:29,620 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) Word has length 197 [2024-11-18 20:06:29,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:06:29,632 INFO L225 Difference]: With dead ends: 201 [2024-11-18 20:06:29,632 INFO L226 Difference]: Without dead ends: 100 [2024-11-18 20:06:29,638 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 20:06:29,643 INFO L432 NwaCegarLoop]: 157 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, 157 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 [2024-11-18 20:06:29,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 20:06:29,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-18 20:06:29,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-18 20:06:29,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 67 states have (on average 1.4179104477611941) internal successors, (95), 67 states have internal predecessors, (95), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-18 20:06:29,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 157 transitions. [2024-11-18 20:06:29,711 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 157 transitions. Word has length 197 [2024-11-18 20:06:29,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:06:29,712 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 157 transitions. [2024-11-18 20:06:29,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (31), 2 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-18 20:06:29,713 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 157 transitions. [2024-11-18 20:06:29,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-18 20:06:29,720 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:06:29,721 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 20:06:29,742 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 20:06:29,922 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 [2024-11-18 20:06:29,923 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:06:29,924 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:06:29,924 INFO L85 PathProgramCache]: Analyzing trace with hash -263955024, now seen corresponding path program 1 times [2024-11-18 20:06:29,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:06:29,925 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953804283] [2024-11-18 20:06:29,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:06:29,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:06:30,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:06:30,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 20:06:30,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:06:30,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953804283] [2024-11-18 20:06:30,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953804283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:06:30,267 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:06:30,267 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 20:06:30,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586857831] [2024-11-18 20:06:30,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:06:30,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 20:06:30,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:06:30,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 20:06:30,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 20:06:30,272 INFO L87 Difference]: Start difference. First operand 100 states and 157 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 20:06:30,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:06:30,323 INFO L93 Difference]: Finished difference Result 198 states and 313 transitions. [2024-11-18 20:06:30,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 20:06:30,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-11-18 20:06:30,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:06:30,327 INFO L225 Difference]: With dead ends: 198 [2024-11-18 20:06:30,328 INFO L226 Difference]: Without dead ends: 101 [2024-11-18 20:06:30,329 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 20:06:30,330 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 0 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 306 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 20:06:30,330 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 306 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 20:06:30,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-18 20:06:30,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-18 20:06:30,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 68 states have (on average 1.411764705882353) internal successors, (96), 68 states have internal predecessors, (96), 31 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-11-18 20:06:30,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 158 transitions. [2024-11-18 20:06:30,349 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 158 transitions. Word has length 197 [2024-11-18 20:06:30,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:06:30,356 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 158 transitions. [2024-11-18 20:06:30,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 20:06:30,356 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 158 transitions. [2024-11-18 20:06:30,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-18 20:06:30,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:06:30,359 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 20:06:30,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 20:06:30,360 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:06:30,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:06:30,362 INFO L85 PathProgramCache]: Analyzing trace with hash 2036867566, now seen corresponding path program 1 times [2024-11-18 20:06:30,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:06:30,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869248715] [2024-11-18 20:06:30,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:06:30,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:06:30,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:06:35,476 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 20:06:35,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:06:35,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869248715] [2024-11-18 20:06:35,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869248715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:06:35,477 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:06:35,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-18 20:06:35,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801283422] [2024-11-18 20:06:35,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:06:35,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 20:06:35,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:06:35,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 20:06:35,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2024-11-18 20:06:35,479 INFO L87 Difference]: Start difference. First operand 101 states and 158 transitions. Second operand has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 20:06:36,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:06:36,697 INFO L93 Difference]: Finished difference Result 383 states and 590 transitions. [2024-11-18 20:06:36,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 20:06:36,699 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-11-18 20:06:36,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:06:36,702 INFO L225 Difference]: With dead ends: 383 [2024-11-18 20:06:36,702 INFO L226 Difference]: Without dead ends: 285 [2024-11-18 20:06:36,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2024-11-18 20:06:36,707 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 431 mSDsluCounter, 912 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 431 SdHoareTripleChecker+Valid, 1058 SdHoareTripleChecker+Invalid, 666 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 20:06:36,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [431 Valid, 1058 Invalid, 666 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 20:06:36,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-18 20:06:36,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 199. [2024-11-18 20:06:36,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 134 states have (on average 1.3955223880597014) internal successors, (187), 134 states have internal predecessors, (187), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-11-18 20:06:36,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 311 transitions. [2024-11-18 20:06:36,752 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 311 transitions. Word has length 197 [2024-11-18 20:06:36,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:06:36,752 INFO L471 AbstractCegarLoop]: Abstraction has 199 states and 311 transitions. [2024-11-18 20:06:36,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 20:06:36,754 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 311 transitions. [2024-11-18 20:06:36,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-18 20:06:36,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:06:36,760 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 20:06:36,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 20:06:36,760 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:06:36,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:06:36,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1557035152, now seen corresponding path program 1 times [2024-11-18 20:06:36,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:06:36,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190411800] [2024-11-18 20:06:36,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:06:36,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:06:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:06:36,884 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 20:06:36,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:06:36,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190411800] [2024-11-18 20:06:36,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190411800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:06:36,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:06:36,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 20:06:36,886 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898422988] [2024-11-18 20:06:36,886 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:06:36,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 20:06:36,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:06:36,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 20:06:36,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 20:06:36,890 INFO L87 Difference]: Start difference. First operand 199 states and 311 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 20:06:36,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:06:36,940 INFO L93 Difference]: Finished difference Result 394 states and 619 transitions. [2024-11-18 20:06:36,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 20:06:36,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-11-18 20:06:36,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:06:36,944 INFO L225 Difference]: With dead ends: 394 [2024-11-18 20:06:36,945 INFO L226 Difference]: Without dead ends: 296 [2024-11-18 20:06:36,946 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 20:06:36,947 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 148 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 20:06:36,948 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 314 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 20:06:36,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-11-18 20:06:36,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 294. [2024-11-18 20:06:36,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 197 states have (on average 1.3908629441624365) internal successors, (274), 197 states have internal predecessors, (274), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-18 20:06:36,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 460 transitions. [2024-11-18 20:06:36,981 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 460 transitions. Word has length 197 [2024-11-18 20:06:36,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:06:36,982 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 460 transitions. [2024-11-18 20:06:36,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 20:06:36,983 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 460 transitions. [2024-11-18 20:06:36,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-18 20:06:36,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:06:36,986 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 20:06:36,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 20:06:36,988 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:06:36,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:06:36,990 INFO L85 PathProgramCache]: Analyzing trace with hash -1246982480, now seen corresponding path program 1 times [2024-11-18 20:06:36,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:06:36,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610424543] [2024-11-18 20:06:36,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:06:36,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:06:37,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:06:37,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 20:06:37,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:06:37,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610424543] [2024-11-18 20:06:37,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610424543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:06:37,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:06:37,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 20:06:37,155 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020706110] [2024-11-18 20:06:37,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:06:37,156 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 20:06:37,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:06:37,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 20:06:37,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 20:06:37,157 INFO L87 Difference]: Start difference. First operand 294 states and 460 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 20:06:37,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:06:37,334 INFO L93 Difference]: Finished difference Result 510 states and 792 transitions. [2024-11-18 20:06:37,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 20:06:37,335 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 197 [2024-11-18 20:06:37,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:06:37,338 INFO L225 Difference]: With dead ends: 510 [2024-11-18 20:06:37,339 INFO L226 Difference]: Without dead ends: 314 [2024-11-18 20:06:37,340 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 20:06:37,341 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 149 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 181 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 20:06:37,341 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 535 Invalid, 181 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 20:06:37,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-18 20:06:37,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 292. [2024-11-18 20:06:37,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 195 states have (on average 1.3846153846153846) internal successors, (270), 195 states have internal predecessors, (270), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-18 20:06:37,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 456 transitions. [2024-11-18 20:06:37,373 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 456 transitions. Word has length 197 [2024-11-18 20:06:37,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:06:37,375 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 456 transitions. [2024-11-18 20:06:37,376 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 20:06:37,376 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 456 transitions. [2024-11-18 20:06:37,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-18 20:06:37,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:06:37,378 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 20:06:37,378 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 20:06:37,378 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:06:37,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:06:37,379 INFO L85 PathProgramCache]: Analyzing trace with hash -1228112962, now seen corresponding path program 1 times [2024-11-18 20:06:37,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:06:37,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556490815] [2024-11-18 20:06:37,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:06:37,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:06:37,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:06:44,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 20:06:44,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:06:44,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556490815] [2024-11-18 20:06:44,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [556490815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:06:44,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:06:44,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-18 20:06:44,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902815007] [2024-11-18 20:06:44,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:06:44,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-18 20:06:44,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:06:44,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-18 20:06:44,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2024-11-18 20:06:44,140 INFO L87 Difference]: Start difference. First operand 292 states and 456 transitions. Second operand has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 20:06:47,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:06:47,452 INFO L93 Difference]: Finished difference Result 342 states and 514 transitions. [2024-11-18 20:06:47,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 20:06:47,453 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-11-18 20:06:47,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:06:47,455 INFO L225 Difference]: With dead ends: 342 [2024-11-18 20:06:47,455 INFO L226 Difference]: Without dead ends: 340 [2024-11-18 20:06:47,455 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=185, Invalid=571, Unknown=0, NotChecked=0, Total=756 [2024-11-18 20:06:47,456 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 322 mSDsluCounter, 1020 mSDsCounter, 0 mSdLazyCounter, 558 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 322 SdHoareTripleChecker+Valid, 1164 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 558 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-18 20:06:47,456 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [322 Valid, 1164 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 558 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-18 20:06:47,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2024-11-18 20:06:47,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 293. [2024-11-18 20:06:47,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 196 states have (on average 1.3826530612244898) internal successors, (271), 196 states have internal predecessors, (271), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-18 20:06:47,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 457 transitions. [2024-11-18 20:06:47,474 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 457 transitions. Word has length 198 [2024-11-18 20:06:47,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:06:47,475 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 457 transitions. [2024-11-18 20:06:47,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 20:06:47,475 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 457 transitions. [2024-11-18 20:06:47,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-18 20:06:47,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:06:47,477 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 20:06:47,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 20:06:47,477 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:06:47,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:06:47,477 INFO L85 PathProgramCache]: Analyzing trace with hash -1440270376, now seen corresponding path program 1 times [2024-11-18 20:06:47,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:06:47,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [263398418] [2024-11-18 20:06:47,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:06:47,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:06:47,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:06:47,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 20:06:47,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:06:47,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [263398418] [2024-11-18 20:06:47,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [263398418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:06:47,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:06:47,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 20:06:47,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569636813] [2024-11-18 20:06:47,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:06:47,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 20:06:47,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:06:47,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 20:06:47,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 20:06:47,639 INFO L87 Difference]: Start difference. First operand 293 states and 457 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 20:06:47,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:06:47,662 INFO L93 Difference]: Finished difference Result 497 states and 776 transitions. [2024-11-18 20:06:47,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 20:06:47,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-11-18 20:06:47,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:06:47,665 INFO L225 Difference]: With dead ends: 497 [2024-11-18 20:06:47,665 INFO L226 Difference]: Without dead ends: 301 [2024-11-18 20:06:47,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 20:06:47,668 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 6 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 20:06:47,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 305 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 20:06:47,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2024-11-18 20:06:47,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 293. [2024-11-18 20:06:47,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 196 states have (on average 1.3673469387755102) internal successors, (268), 196 states have internal predecessors, (268), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-18 20:06:47,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 454 transitions. [2024-11-18 20:06:47,684 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 454 transitions. Word has length 198 [2024-11-18 20:06:47,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:06:47,685 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 454 transitions. [2024-11-18 20:06:47,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 20:06:47,685 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 454 transitions. [2024-11-18 20:06:47,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-18 20:06:47,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:06:47,687 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 20:06:47,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 20:06:47,687 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:06:47,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:06:47,688 INFO L85 PathProgramCache]: Analyzing trace with hash 334736986, now seen corresponding path program 1 times [2024-11-18 20:06:47,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:06:47,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2306090] [2024-11-18 20:06:47,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:06:47,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:06:47,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:06:51,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 20:06:51,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:06:51,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2306090] [2024-11-18 20:06:51,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2306090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:06:51,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:06:51,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 20:06:51,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724741284] [2024-11-18 20:06:51,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:06:51,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 20:06:51,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:06:51,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 20:06:51,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2024-11-18 20:06:51,648 INFO L87 Difference]: Start difference. First operand 293 states and 454 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-18 20:06:53,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:06:53,036 INFO L93 Difference]: Finished difference Result 347 states and 514 transitions. [2024-11-18 20:06:53,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-18 20:06:53,036 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 198 [2024-11-18 20:06:53,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:06:53,041 INFO L225 Difference]: With dead ends: 347 [2024-11-18 20:06:53,041 INFO L226 Difference]: Without dead ends: 345 [2024-11-18 20:06:53,041 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=276, Invalid=846, Unknown=0, NotChecked=0, Total=1122 [2024-11-18 20:06:53,042 INFO L432 NwaCegarLoop]: 137 mSDtfsCounter, 522 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 522 SdHoareTripleChecker+Valid, 1117 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 20:06:53,044 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [522 Valid, 1117 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 20:06:53,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states. [2024-11-18 20:06:53,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 293. [2024-11-18 20:06:53,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293 states, 196 states have (on average 1.3673469387755102) internal successors, (268), 196 states have internal predecessors, (268), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-18 20:06:53,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293 states to 293 states and 454 transitions. [2024-11-18 20:06:53,079 INFO L78 Accepts]: Start accepts. Automaton has 293 states and 454 transitions. Word has length 198 [2024-11-18 20:06:53,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:06:53,080 INFO L471 AbstractCegarLoop]: Abstraction has 293 states and 454 transitions. [2024-11-18 20:06:53,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-18 20:06:53,080 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states and 454 transitions. [2024-11-18 20:06:53,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-18 20:06:53,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:06:53,085 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 20:06:53,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 20:06:53,085 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:06:53,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:06:53,086 INFO L85 PathProgramCache]: Analyzing trace with hash -109385737, now seen corresponding path program 1 times [2024-11-18 20:06:53,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:06:53,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605014492] [2024-11-18 20:06:53,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:06:53,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:06:53,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:06:59,237 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 20:06:59,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:06:59,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605014492] [2024-11-18 20:06:59,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605014492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:06:59,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:06:59,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-18 20:06:59,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486075432] [2024-11-18 20:06:59,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:06:59,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-18 20:06:59,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:06:59,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-18 20:06:59,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-18 20:06:59,242 INFO L87 Difference]: Start difference. First operand 293 states and 454 transitions. Second operand has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 20:07:04,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:07:04,846 INFO L93 Difference]: Finished difference Result 363 states and 533 transitions. [2024-11-18 20:07:04,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-18 20:07:04,847 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-11-18 20:07:04,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:07:04,849 INFO L225 Difference]: With dead ends: 363 [2024-11-18 20:07:04,852 INFO L226 Difference]: Without dead ends: 361 [2024-11-18 20:07:04,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=262, Invalid=668, Unknown=0, NotChecked=0, Total=930 [2024-11-18 20:07:04,853 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 369 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 436 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 957 SdHoareTripleChecker+Invalid, 562 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-18 20:07:04,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 957 Invalid, 562 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 436 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-18 20:07:04,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-18 20:07:04,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 303. [2024-11-18 20:07:04,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 206 states have (on average 1.3640776699029127) internal successors, (281), 206 states have internal predecessors, (281), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-18 20:07:04,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 467 transitions. [2024-11-18 20:07:04,927 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 467 transitions. Word has length 198 [2024-11-18 20:07:04,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:07:04,927 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 467 transitions. [2024-11-18 20:07:04,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.066666666666667) internal successors, (46), 15 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 20:07:04,927 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 467 transitions. [2024-11-18 20:07:04,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-18 20:07:04,933 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:07:04,933 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 20:07:04,933 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 20:07:04,934 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:07:04,934 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:07:04,934 INFO L85 PathProgramCache]: Analyzing trace with hash 570672633, now seen corresponding path program 1 times [2024-11-18 20:07:04,934 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:07:04,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156580001] [2024-11-18 20:07:04,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:07:04,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:07:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:07:12,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 20:07:12,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:07:12,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156580001] [2024-11-18 20:07:12,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156580001] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:07:12,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:07:12,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 20:07:12,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434286781] [2024-11-18 20:07:12,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:07:12,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 20:07:12,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:07:12,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 20:07:12,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-18 20:07:12,837 INFO L87 Difference]: Start difference. First operand 303 states and 467 transitions. Second operand has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 20:07:18,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:07:18,842 INFO L93 Difference]: Finished difference Result 357 states and 527 transitions. [2024-11-18 20:07:18,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-18 20:07:18,843 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 198 [2024-11-18 20:07:18,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:07:18,844 INFO L225 Difference]: With dead ends: 357 [2024-11-18 20:07:18,845 INFO L226 Difference]: Without dead ends: 355 [2024-11-18 20:07:18,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=281, Invalid=711, Unknown=0, NotChecked=0, Total=992 [2024-11-18 20:07:18,849 INFO L432 NwaCegarLoop]: 143 mSDtfsCounter, 256 mSDsluCounter, 1013 mSDsCounter, 0 mSdLazyCounter, 534 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 1156 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-18 20:07:18,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 1156 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 534 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-18 20:07:18,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 355 states. [2024-11-18 20:07:18,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 355 to 303. [2024-11-18 20:07:18,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 206 states have (on average 1.3640776699029127) internal successors, (281), 206 states have internal predecessors, (281), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-18 20:07:18,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 467 transitions. [2024-11-18 20:07:18,879 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 467 transitions. Word has length 198 [2024-11-18 20:07:18,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:07:18,881 INFO L471 AbstractCegarLoop]: Abstraction has 303 states and 467 transitions. [2024-11-18 20:07:18,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.875) internal successors, (46), 16 states have internal predecessors, (46), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 20:07:18,881 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 467 transitions. [2024-11-18 20:07:18,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-18 20:07:18,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:07:18,882 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 20:07:18,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 20:07:18,882 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:07:18,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:07:18,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1840413906, now seen corresponding path program 1 times [2024-11-18 20:07:18,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:07:18,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587355311] [2024-11-18 20:07:18,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:07:18,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:07:18,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:07:24,859 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 20:07:24,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:07:24,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587355311] [2024-11-18 20:07:24,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1587355311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:07:24,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:07:24,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-18 20:07:24,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358906201] [2024-11-18 20:07:24,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:07:24,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-18 20:07:24,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:07:24,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-18 20:07:24,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2024-11-18 20:07:24,862 INFO L87 Difference]: Start difference. First operand 303 states and 467 transitions. Second operand has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-18 20:07:29,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:07:29,742 INFO L93 Difference]: Finished difference Result 345 states and 513 transitions. [2024-11-18 20:07:29,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 20:07:29,743 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 199 [2024-11-18 20:07:29,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:07:29,745 INFO L225 Difference]: With dead ends: 345 [2024-11-18 20:07:29,745 INFO L226 Difference]: Without dead ends: 343 [2024-11-18 20:07:29,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=218, Invalid=712, Unknown=0, NotChecked=0, Total=930 [2024-11-18 20:07:29,746 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 474 mSDsluCounter, 1155 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 474 SdHoareTripleChecker+Valid, 1294 SdHoareTripleChecker+Invalid, 1062 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-18 20:07:29,746 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [474 Valid, 1294 Invalid, 1062 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-18 20:07:29,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2024-11-18 20:07:29,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 300. [2024-11-18 20:07:29,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 203 states have (on average 1.3645320197044335) internal successors, (277), 203 states have internal predecessors, (277), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-18 20:07:29,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 463 transitions. [2024-11-18 20:07:29,767 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 463 transitions. Word has length 199 [2024-11-18 20:07:29,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:07:29,768 INFO L471 AbstractCegarLoop]: Abstraction has 300 states and 463 transitions. [2024-11-18 20:07:29,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.764705882352941) internal successors, (47), 17 states have internal predecessors, (47), 2 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2024-11-18 20:07:29,768 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 463 transitions. [2024-11-18 20:07:29,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-18 20:07:29,769 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:07:29,769 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 20:07:29,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 20:07:29,770 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:07:29,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:07:29,770 INFO L85 PathProgramCache]: Analyzing trace with hash 959358423, now seen corresponding path program 1 times [2024-11-18 20:07:29,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:07:29,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135820437] [2024-11-18 20:07:29,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:07:29,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:07:29,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:07:35,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 20:07:35,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:07:35,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135820437] [2024-11-18 20:07:35,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135820437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:07:35,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:07:35,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 20:07:35,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394424310] [2024-11-18 20:07:35,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:07:35,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 20:07:35,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:07:35,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 20:07:35,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-18 20:07:35,980 INFO L87 Difference]: Start difference. First operand 300 states and 463 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 16 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 20:07:39,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:07:39,817 INFO L93 Difference]: Finished difference Result 358 states and 528 transitions. [2024-11-18 20:07:39,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-18 20:07:39,818 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 16 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2024-11-18 20:07:39,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:07:39,820 INFO L225 Difference]: With dead ends: 358 [2024-11-18 20:07:39,820 INFO L226 Difference]: Without dead ends: 356 [2024-11-18 20:07:39,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=293, Invalid=763, Unknown=0, NotChecked=0, Total=1056 [2024-11-18 20:07:39,821 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 294 mSDsluCounter, 1032 mSDsCounter, 0 mSdLazyCounter, 581 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 581 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-18 20:07:39,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 1179 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 581 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-18 20:07:39,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-18 20:07:39,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 305. [2024-11-18 20:07:39,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 208 states have (on average 1.3653846153846154) internal successors, (284), 208 states have internal predecessors, (284), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-18 20:07:39,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 470 transitions. [2024-11-18 20:07:39,835 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 470 transitions. Word has length 199 [2024-11-18 20:07:39,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:07:39,836 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 470 transitions. [2024-11-18 20:07:39,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 16 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 20:07:39,836 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 470 transitions. [2024-11-18 20:07:39,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-18 20:07:39,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:07:39,837 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 20:07:39,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 20:07:39,837 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:07:39,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:07:39,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1774605967, now seen corresponding path program 1 times [2024-11-18 20:07:39,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:07:39,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646579594] [2024-11-18 20:07:39,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:07:39,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:07:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 20:07:43,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1860 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-11-18 20:07:43,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 20:07:43,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646579594] [2024-11-18 20:07:43,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646579594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 20:07:43,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 20:07:43,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 20:07:43,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977874624] [2024-11-18 20:07:43,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 20:07:43,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 20:07:43,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 20:07:43,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 20:07:43,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-11-18 20:07:43,414 INFO L87 Difference]: Start difference. First operand 305 states and 470 transitions. Second operand has 16 states, 16 states have (on average 2.9375) internal successors, (47), 16 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 20:07:45,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 20:07:45,796 INFO L93 Difference]: Finished difference Result 358 states and 528 transitions. [2024-11-18 20:07:45,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-18 20:07:45,797 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 16 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) Word has length 199 [2024-11-18 20:07:45,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 20:07:45,799 INFO L225 Difference]: With dead ends: 358 [2024-11-18 20:07:45,799 INFO L226 Difference]: Without dead ends: 356 [2024-11-18 20:07:45,799 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=298, Invalid=758, Unknown=0, NotChecked=0, Total=1056 [2024-11-18 20:07:45,800 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 365 mSDsluCounter, 892 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1038 SdHoareTripleChecker+Invalid, 728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-18 20:07:45,800 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1038 Invalid, 728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-18 20:07:45,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states. [2024-11-18 20:07:45,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 306. [2024-11-18 20:07:45,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306 states, 209 states have (on average 1.3636363636363635) internal successors, (285), 209 states have internal predecessors, (285), 93 states have call successors, (93), 3 states have call predecessors, (93), 3 states have return successors, (93), 93 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-18 20:07:45,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 471 transitions. [2024-11-18 20:07:45,814 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 471 transitions. Word has length 199 [2024-11-18 20:07:45,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 20:07:45,815 INFO L471 AbstractCegarLoop]: Abstraction has 306 states and 471 transitions. [2024-11-18 20:07:45,815 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.9375) internal successors, (47), 16 states have internal predecessors, (47), 1 states have call successors, (31), 1 states have call predecessors, (31), 1 states have return successors, (31), 1 states have call predecessors, (31), 1 states have call successors, (31) [2024-11-18 20:07:45,815 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 471 transitions. [2024-11-18 20:07:45,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2024-11-18 20:07:45,816 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 20:07:45,816 INFO L215 NwaCegarLoop]: trace histogram [31, 31, 31, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 20:07:45,816 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 20:07:45,816 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 20:07:45,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 20:07:45,817 INFO L85 PathProgramCache]: Analyzing trace with hash 566331413, now seen corresponding path program 1 times [2024-11-18 20:07:45,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 20:07:45,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901930465] [2024-11-18 20:07:45,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 20:07:45,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 20:07:45,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat