./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-35.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-35.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 c178e26bd16106920ac3430faa853163075f2c78c2a5a24c5798639d4db107ab --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 07:22:35,772 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 07:22:35,846 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 07:22:35,870 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 07:22:35,873 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 07:22:35,916 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 07:22:35,917 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 07:22:35,918 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 07:22:35,918 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 07:22:35,919 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 07:22:35,919 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 07:22:35,919 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 07:22:35,920 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 07:22:35,920 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 07:22:35,921 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 07:22:35,921 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 07:22:35,922 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 07:22:35,922 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 07:22:35,922 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 07:22:35,923 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 07:22:35,923 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 07:22:35,923 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 07:22:35,924 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 07:22:35,924 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 07:22:35,924 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 07:22:35,925 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 07:22:35,925 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 07:22:35,925 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 07:22:35,925 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 07:22:35,926 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 07:22:35,926 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 07:22:35,926 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 07:22:35,927 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:22:35,927 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 07:22:35,927 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 07:22:35,928 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 07:22:35,928 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 07:22:35,928 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 07:22:35,928 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 07:22:35,929 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 07:22:35,929 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 07:22:35,930 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 07:22:35,930 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c178e26bd16106920ac3430faa853163075f2c78c2a5a24c5798639d4db107ab [2024-11-22 07:22:36,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 07:22:36,232 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 07:22:36,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 07:22:36,238 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 07:22:36,238 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 07:22:36,240 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-35.i [2024-11-22 07:22:37,727 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 07:22:37,985 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 07:22:37,986 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-35.i [2024-11-22 07:22:37,998 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95951f69d/651e01b46b174bdd8b2e0b8668378a12/FLAGa7eb14403 [2024-11-22 07:22:38,012 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95951f69d/651e01b46b174bdd8b2e0b8668378a12 [2024-11-22 07:22:38,016 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 07:22:38,017 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 07:22:38,018 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 07:22:38,018 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 07:22:38,022 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 07:22:38,023 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:22:38" (1/1) ... [2024-11-22 07:22:38,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f22185e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:22:38, skipping insertion in model container [2024-11-22 07:22:38,024 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:22:38" (1/1) ... [2024-11-22 07:22:38,061 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 07:22:38,258 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-250_file-35.i[916,929] [2024-11-22 07:22:38,434 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:22:38,451 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 07:22:38,466 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-250_file-35.i[916,929] [2024-11-22 07:22:38,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:22:38,579 INFO L204 MainTranslator]: Completed translation [2024-11-22 07:22:38,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:22:38 WrapperNode [2024-11-22 07:22:38,580 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 07:22:38,581 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 07:22:38,582 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 07:22:38,582 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 07:22:38,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:22:38" (1/1) ... [2024-11-22 07:22:38,614 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:22:38" (1/1) ... [2024-11-22 07:22:38,692 INFO L138 Inliner]: procedures = 26, calls = 107, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 629 [2024-11-22 07:22:38,692 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 07:22:38,693 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 07:22:38,693 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 07:22:38,694 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 07:22:38,707 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:22:38" (1/1) ... [2024-11-22 07:22:38,707 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:22:38" (1/1) ... [2024-11-22 07:22:38,716 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:22:38" (1/1) ... [2024-11-22 07:22:38,752 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]. [2024-11-22 07:22:38,753 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:22:38" (1/1) ... [2024-11-22 07:22:38,753 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:22:38" (1/1) ... [2024-11-22 07:22:38,786 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:22:38" (1/1) ... [2024-11-22 07:22:38,852 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:22:38" (1/1) ... [2024-11-22 07:22:38,863 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:22:38" (1/1) ... [2024-11-22 07:22:38,877 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:22:38" (1/1) ... [2024-11-22 07:22:38,897 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 07:22:38,898 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 07:22:38,898 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 07:22:38,898 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 07:22:38,899 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:22:38" (1/1) ... [2024-11-22 07:22:38,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:22:38,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:22:38,955 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) [2024-11-22 07:22:38,959 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 [2024-11-22 07:22:39,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 07:22:39,017 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 07:22:39,018 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 07:22:39,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 07:22:39,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 07:22:39,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 07:22:39,146 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 07:22:39,148 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 07:22:40,128 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-22 07:22:40,128 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 07:22:40,151 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 07:22:40,153 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 07:22:40,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:22:40 BoogieIcfgContainer [2024-11-22 07:22:40,154 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 07:22:40,158 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 07:22:40,158 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 07:22:40,161 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 07:22:40,161 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 07:22:38" (1/3) ... [2024-11-22 07:22:40,162 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183b0cf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:22:40, skipping insertion in model container [2024-11-22 07:22:40,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:22:38" (2/3) ... [2024-11-22 07:22:40,163 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@183b0cf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:22:40, skipping insertion in model container [2024-11-22 07:22:40,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:22:40" (3/3) ... [2024-11-22 07:22:40,165 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-35.i [2024-11-22 07:22:40,181 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 07:22:40,182 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 07:22:40,265 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 07:22:40,274 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;@6a02b051, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 07:22:40,275 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 07:22:40,282 INFO L276 IsEmpty]: Start isEmpty. Operand has 265 states, 168 states have (on average 1.4880952380952381) internal successors, (250), 169 states have internal predecessors, (250), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 07:22:40,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2024-11-22 07:22:40,327 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:22:40,329 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:22:40,329 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:22:40,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:22:40,335 INFO L85 PathProgramCache]: Analyzing trace with hash 399109115, now seen corresponding path program 1 times [2024-11-22 07:22:40,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:22:40,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11105226] [2024-11-22 07:22:40,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:22:40,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:22:40,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:22:41,136 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:22:41,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:22:41,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [11105226] [2024-11-22 07:22:41,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [11105226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:22:41,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:22:41,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 07:22:41,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4719391] [2024-11-22 07:22:41,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:22:41,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 07:22:41,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:22:41,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 07:22:41,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 07:22:41,178 INFO L87 Difference]: Start difference. First operand has 265 states, 168 states have (on average 1.4880952380952381) internal successors, (250), 169 states have internal predecessors, (250), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) Second operand has 2 states, 2 states have (on average 58.0) internal successors, (116), 2 states have internal predecessors, (116), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:22:41,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:22:41,260 INFO L93 Difference]: Finished difference Result 522 states and 962 transitions. [2024-11-22 07:22:41,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 07:22:41,262 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 58.0) internal successors, (116), 2 states have internal predecessors, (116), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 583 [2024-11-22 07:22:41,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:22:41,282 INFO L225 Difference]: With dead ends: 522 [2024-11-22 07:22:41,283 INFO L226 Difference]: Without dead ends: 260 [2024-11-22 07:22:41,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 07:22:41,295 INFO L432 NwaCegarLoop]: 427 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, 427 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 [2024-11-22 07:22:41,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:22:41,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2024-11-22 07:22:41,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2024-11-22 07:22:41,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 164 states have (on average 1.4573170731707317) internal successors, (239), 164 states have internal predecessors, (239), 94 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 94 states have call predecessors, (94), 94 states have call successors, (94) [2024-11-22 07:22:41,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 427 transitions. [2024-11-22 07:22:41,389 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 427 transitions. Word has length 583 [2024-11-22 07:22:41,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:22:41,394 INFO L471 AbstractCegarLoop]: Abstraction has 260 states and 427 transitions. [2024-11-22 07:22:41,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 58.0) internal successors, (116), 2 states have internal predecessors, (116), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:22:41,395 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 427 transitions. [2024-11-22 07:22:41,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 584 [2024-11-22 07:22:41,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:22:41,410 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:22:41,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 07:22:41,411 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:22:41,412 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:22:41,412 INFO L85 PathProgramCache]: Analyzing trace with hash -1629476995, now seen corresponding path program 1 times [2024-11-22 07:22:41,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:22:41,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170230890] [2024-11-22 07:22:41,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:22:41,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:22:41,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:22:42,522 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:22:42,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:22:42,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170230890] [2024-11-22 07:22:42,524 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170230890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:22:42,524 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:22:42,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 07:22:42,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099904818] [2024-11-22 07:22:42,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:22:42,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 07:22:42,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:22:42,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 07:22:42,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:22:42,531 INFO L87 Difference]: Start difference. First operand 260 states and 427 transitions. Second operand has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:22:43,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:22:43,175 INFO L93 Difference]: Finished difference Result 794 states and 1302 transitions. [2024-11-22 07:22:43,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 07:22:43,176 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 583 [2024-11-22 07:22:43,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:22:43,189 INFO L225 Difference]: With dead ends: 794 [2024-11-22 07:22:43,189 INFO L226 Difference]: Without dead ends: 537 [2024-11-22 07:22:43,192 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-22 07:22:43,194 INFO L432 NwaCegarLoop]: 444 mSDtfsCounter, 376 mSDsluCounter, 1088 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 376 SdHoareTripleChecker+Valid, 1532 SdHoareTripleChecker+Invalid, 505 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 07:22:43,195 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [376 Valid, 1532 Invalid, 505 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 07:22:43,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-11-22 07:22:43,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 515. [2024-11-22 07:22:43,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 324 states have (on average 1.4598765432098766) internal successors, (473), 324 states have internal predecessors, (473), 188 states have call successors, (188), 2 states have call predecessors, (188), 2 states have return successors, (188), 188 states have call predecessors, (188), 188 states have call successors, (188) [2024-11-22 07:22:43,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 849 transitions. [2024-11-22 07:22:43,341 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 849 transitions. Word has length 583 [2024-11-22 07:22:43,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:22:43,345 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 849 transitions. [2024-11-22 07:22:43,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.2) internal successors, (116), 5 states have internal predecessors, (116), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:22:43,346 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 849 transitions. [2024-11-22 07:22:43,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2024-11-22 07:22:43,360 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:22:43,361 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:22:43,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 07:22:43,362 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:22:43,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:22:43,366 INFO L85 PathProgramCache]: Analyzing trace with hash -349265063, now seen corresponding path program 1 times [2024-11-22 07:22:43,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:22:43,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582223041] [2024-11-22 07:22:43,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:22:43,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:22:43,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:22:44,017 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:22:44,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:22:44,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582223041] [2024-11-22 07:22:44,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582223041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:22:44,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:22:44,020 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 07:22:44,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433136486] [2024-11-22 07:22:44,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:22:44,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 07:22:44,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:22:44,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 07:22:44,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:22:44,025 INFO L87 Difference]: Start difference. First operand 515 states and 849 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:22:44,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:22:44,139 INFO L93 Difference]: Finished difference Result 1335 states and 2201 transitions. [2024-11-22 07:22:44,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 07:22:44,140 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 584 [2024-11-22 07:22:44,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:22:44,150 INFO L225 Difference]: With dead ends: 1335 [2024-11-22 07:22:44,150 INFO L226 Difference]: Without dead ends: 823 [2024-11-22 07:22:44,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:22:44,157 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 250 mSDsluCounter, 826 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 1247 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:22:44,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 1247 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:22:44,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2024-11-22 07:22:44,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 819. [2024-11-22 07:22:44,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 552 states have (on average 1.4927536231884058) internal successors, (824), 554 states have internal predecessors, (824), 262 states have call successors, (262), 4 states have call predecessors, (262), 4 states have return successors, (262), 260 states have call predecessors, (262), 262 states have call successors, (262) [2024-11-22 07:22:44,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 1348 transitions. [2024-11-22 07:22:44,288 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 1348 transitions. Word has length 584 [2024-11-22 07:22:44,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:22:44,290 INFO L471 AbstractCegarLoop]: Abstraction has 819 states and 1348 transitions. [2024-11-22 07:22:44,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:22:44,291 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 1348 transitions. [2024-11-22 07:22:44,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2024-11-22 07:22:44,302 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:22:44,302 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:22:44,303 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 07:22:44,303 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:22:44,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:22:44,304 INFO L85 PathProgramCache]: Analyzing trace with hash 548128215, now seen corresponding path program 1 times [2024-11-22 07:22:44,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:22:44,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021221242] [2024-11-22 07:22:44,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:22:44,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:22:44,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:22:44,853 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:22:44,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:22:44,854 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021221242] [2024-11-22 07:22:44,854 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021221242] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:22:44,855 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:22:44,855 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 07:22:44,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199871256] [2024-11-22 07:22:44,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:22:44,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 07:22:44,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:22:44,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 07:22:44,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:22:44,858 INFO L87 Difference]: Start difference. First operand 819 states and 1348 transitions. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:22:45,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:22:45,425 INFO L93 Difference]: Finished difference Result 2579 states and 4219 transitions. [2024-11-22 07:22:45,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 07:22:45,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 584 [2024-11-22 07:22:45,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:22:45,438 INFO L225 Difference]: With dead ends: 2579 [2024-11-22 07:22:45,438 INFO L226 Difference]: Without dead ends: 1763 [2024-11-22 07:22:45,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:22:45,443 INFO L432 NwaCegarLoop]: 844 mSDtfsCounter, 465 mSDsluCounter, 628 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 465 SdHoareTripleChecker+Valid, 1472 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 07:22:45,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [465 Valid, 1472 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 07:22:45,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1763 states. [2024-11-22 07:22:45,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1763 to 997. [2024-11-22 07:22:45,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 698 states have (on average 1.4699140401146131) internal successors, (1026), 704 states have internal predecessors, (1026), 290 states have call successors, (290), 8 states have call predecessors, (290), 8 states have return successors, (290), 284 states have call predecessors, (290), 290 states have call successors, (290) [2024-11-22 07:22:45,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1606 transitions. [2024-11-22 07:22:45,629 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1606 transitions. Word has length 584 [2024-11-22 07:22:45,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:22:45,630 INFO L471 AbstractCegarLoop]: Abstraction has 997 states and 1606 transitions. [2024-11-22 07:22:45,631 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:22:45,631 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1606 transitions. [2024-11-22 07:22:45,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2024-11-22 07:22:45,643 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:22:45,643 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:22:45,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 07:22:45,644 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:22:45,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:22:45,644 INFO L85 PathProgramCache]: Analyzing trace with hash -38677799, now seen corresponding path program 1 times [2024-11-22 07:22:45,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:22:45,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147346421] [2024-11-22 07:22:45,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:22:45,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:22:45,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:22:46,995 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:22:46,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:22:46,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147346421] [2024-11-22 07:22:46,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147346421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:22:46,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:22:46,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-22 07:22:46,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [731128657] [2024-11-22 07:22:46,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:22:47,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 07:22:47,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:22:47,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 07:22:47,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-22 07:22:47,003 INFO L87 Difference]: Start difference. First operand 997 states and 1606 transitions. Second operand has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:22:48,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:22:48,092 INFO L93 Difference]: Finished difference Result 4223 states and 6764 transitions. [2024-11-22 07:22:48,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 07:22:48,093 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 584 [2024-11-22 07:22:48,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:22:48,113 INFO L225 Difference]: With dead ends: 4223 [2024-11-22 07:22:48,113 INFO L226 Difference]: Without dead ends: 3229 [2024-11-22 07:22:48,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2024-11-22 07:22:48,120 INFO L432 NwaCegarLoop]: 529 mSDtfsCounter, 1063 mSDsluCounter, 1782 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 235 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1063 SdHoareTripleChecker+Valid, 2311 SdHoareTripleChecker+Invalid, 730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 235 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-22 07:22:48,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1063 Valid, 2311 Invalid, 730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [235 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-22 07:22:48,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3229 states. [2024-11-22 07:22:48,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3229 to 2611. [2024-11-22 07:22:48,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 2032 states have (on average 1.5255905511811023) internal successors, (3100), 2054 states have internal predecessors, (3100), 554 states have call successors, (554), 24 states have call predecessors, (554), 24 states have return successors, (554), 532 states have call predecessors, (554), 554 states have call successors, (554) [2024-11-22 07:22:48,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 4208 transitions. [2024-11-22 07:22:48,466 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 4208 transitions. Word has length 584 [2024-11-22 07:22:48,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:22:48,467 INFO L471 AbstractCegarLoop]: Abstraction has 2611 states and 4208 transitions. [2024-11-22 07:22:48,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 14.625) internal successors, (117), 8 states have internal predecessors, (117), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:22:48,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 4208 transitions. [2024-11-22 07:22:48,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2024-11-22 07:22:48,473 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:22:48,474 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:22:48,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 07:22:48,474 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:22:48,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:22:48,475 INFO L85 PathProgramCache]: Analyzing trace with hash -882683301, now seen corresponding path program 1 times [2024-11-22 07:22:48,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:22:48,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609217675] [2024-11-22 07:22:48,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:22:48,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:22:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:22:50,001 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:22:50,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:22:50,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609217675] [2024-11-22 07:22:50,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609217675] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:22:50,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:22:50,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 07:22:50,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722000358] [2024-11-22 07:22:50,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:22:50,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 07:22:50,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:22:50,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 07:22:50,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-22 07:22:50,005 INFO L87 Difference]: Start difference. First operand 2611 states and 4208 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 9 states have internal predecessors, (117), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:22:52,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:22:52,194 INFO L93 Difference]: Finished difference Result 9197 states and 14847 transitions. [2024-11-22 07:22:52,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 07:22:52,198 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 9 states have internal predecessors, (117), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 584 [2024-11-22 07:22:52,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:22:52,241 INFO L225 Difference]: With dead ends: 9197 [2024-11-22 07:22:52,241 INFO L226 Difference]: Without dead ends: 6589 [2024-11-22 07:22:52,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2024-11-22 07:22:52,254 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 2040 mSDsluCounter, 2204 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 295 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2040 SdHoareTripleChecker+Valid, 2781 SdHoareTripleChecker+Invalid, 1469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 295 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-22 07:22:52,255 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2040 Valid, 2781 Invalid, 1469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [295 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-22 07:22:52,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6589 states. [2024-11-22 07:22:52,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6589 to 5329. [2024-11-22 07:22:52,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5329 states, 4172 states have (on average 1.5311601150527325) internal successors, (6388), 4216 states have internal predecessors, (6388), 1108 states have call successors, (1108), 48 states have call predecessors, (1108), 48 states have return successors, (1108), 1064 states have call predecessors, (1108), 1108 states have call successors, (1108) [2024-11-22 07:22:52,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5329 states to 5329 states and 8604 transitions. [2024-11-22 07:22:52,839 INFO L78 Accepts]: Start accepts. Automaton has 5329 states and 8604 transitions. Word has length 584 [2024-11-22 07:22:52,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:22:52,840 INFO L471 AbstractCegarLoop]: Abstraction has 5329 states and 8604 transitions. [2024-11-22 07:22:52,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 9 states have internal predecessors, (117), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:22:52,841 INFO L276 IsEmpty]: Start isEmpty. Operand 5329 states and 8604 transitions. [2024-11-22 07:22:52,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2024-11-22 07:22:52,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:22:52,876 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:22:52,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 07:22:52,877 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:22:52,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:22:52,877 INFO L85 PathProgramCache]: Analyzing trace with hash 395051287, now seen corresponding path program 1 times [2024-11-22 07:22:52,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:22:52,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287702615] [2024-11-22 07:22:52,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:22:52,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:22:52,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:22:54,499 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:22:54,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:22:54,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287702615] [2024-11-22 07:22:54,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287702615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:22:54,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:22:54,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-22 07:22:54,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815568153] [2024-11-22 07:22:54,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:22:54,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-22 07:22:54,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:22:54,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-22 07:22:54,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-22 07:22:54,505 INFO L87 Difference]: Start difference. First operand 5329 states and 8604 transitions. Second operand has 11 states, 11 states have (on average 10.636363636363637) internal successors, (117), 11 states have internal predecessors, (117), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:22:57,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:22:57,742 INFO L93 Difference]: Finished difference Result 15393 states and 24645 transitions. [2024-11-22 07:22:57,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 07:22:57,744 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.636363636363637) internal successors, (117), 11 states have internal predecessors, (117), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 584 [2024-11-22 07:22:57,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:22:57,803 INFO L225 Difference]: With dead ends: 15393 [2024-11-22 07:22:57,803 INFO L226 Difference]: Without dead ends: 10067 [2024-11-22 07:22:57,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342 [2024-11-22 07:22:57,820 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 2214 mSDsluCounter, 2990 mSDsCounter, 0 mSdLazyCounter, 1201 mSolverCounterSat, 671 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2214 SdHoareTripleChecker+Valid, 3360 SdHoareTripleChecker+Invalid, 1872 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 671 IncrementalHoareTripleChecker+Valid, 1201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-22 07:22:57,821 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2214 Valid, 3360 Invalid, 1872 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [671 Valid, 1201 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-22 07:22:57,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10067 states. [2024-11-22 07:22:58,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10067 to 6945. [2024-11-22 07:22:58,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6945 states, 5532 states have (on average 1.5394070860448301) internal successors, (8516), 5592 states have internal predecessors, (8516), 1348 states have call successors, (1348), 64 states have call predecessors, (1348), 64 states have return successors, (1348), 1288 states have call predecessors, (1348), 1348 states have call successors, (1348) [2024-11-22 07:22:58,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6945 states to 6945 states and 11212 transitions. [2024-11-22 07:22:58,482 INFO L78 Accepts]: Start accepts. Automaton has 6945 states and 11212 transitions. Word has length 584 [2024-11-22 07:22:58,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:22:58,483 INFO L471 AbstractCegarLoop]: Abstraction has 6945 states and 11212 transitions. [2024-11-22 07:22:58,487 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.636363636363637) internal successors, (117), 11 states have internal predecessors, (117), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:22:58,488 INFO L276 IsEmpty]: Start isEmpty. Operand 6945 states and 11212 transitions. [2024-11-22 07:22:58,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 585 [2024-11-22 07:22:58,500 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:22:58,500 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:22:58,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 07:22:58,501 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:22:58,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:22:58,501 INFO L85 PathProgramCache]: Analyzing trace with hash -448954215, now seen corresponding path program 1 times [2024-11-22 07:22:58,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:22:58,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896991923] [2024-11-22 07:22:58,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:22:58,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:22:58,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:23:00,124 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:23:00,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:23:00,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896991923] [2024-11-22 07:23:00,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896991923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:23:00,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:23:00,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-22 07:23:00,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306939653] [2024-11-22 07:23:00,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:23:00,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-22 07:23:00,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:23:00,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-22 07:23:00,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-22 07:23:00,129 INFO L87 Difference]: Start difference. First operand 6945 states and 11212 transitions. Second operand has 9 states, 9 states have (on average 13.0) internal successors, (117), 9 states have internal predecessors, (117), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:23:02,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:23:02,085 INFO L93 Difference]: Finished difference Result 15800 states and 25385 transitions. [2024-11-22 07:23:02,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 07:23:02,091 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 9 states have internal predecessors, (117), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 584 [2024-11-22 07:23:02,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:23:02,156 INFO L225 Difference]: With dead ends: 15800 [2024-11-22 07:23:02,157 INFO L226 Difference]: Without dead ends: 8858 [2024-11-22 07:23:02,177 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-22 07:23:02,179 INFO L432 NwaCegarLoop]: 572 mSDtfsCounter, 1077 mSDsluCounter, 2245 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 184 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1077 SdHoareTripleChecker+Valid, 2817 SdHoareTripleChecker+Invalid, 1013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 184 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 07:23:02,179 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1077 Valid, 2817 Invalid, 1013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [184 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 07:23:02,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8858 states. [2024-11-22 07:23:02,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8858 to 6933. [2024-11-22 07:23:02,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6933 states, 5520 states have (on average 1.5391304347826087) internal successors, (8496), 5580 states have internal predecessors, (8496), 1348 states have call successors, (1348), 64 states have call predecessors, (1348), 64 states have return successors, (1348), 1288 states have call predecessors, (1348), 1348 states have call successors, (1348) [2024-11-22 07:23:02,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 11192 transitions. [2024-11-22 07:23:02,732 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 11192 transitions. Word has length 584 [2024-11-22 07:23:02,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:23:02,733 INFO L471 AbstractCegarLoop]: Abstraction has 6933 states and 11192 transitions. [2024-11-22 07:23:02,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.0) internal successors, (117), 9 states have internal predecessors, (117), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:23:02,734 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 11192 transitions. [2024-11-22 07:23:02,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2024-11-22 07:23:02,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:23:02,744 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:23:02,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 07:23:02,745 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:23:02,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:23:02,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1098515262, now seen corresponding path program 1 times [2024-11-22 07:23:02,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:23:02,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304271717] [2024-11-22 07:23:02,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:23:02,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:23:02,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:23:03,998 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:23:03,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:23:03,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304271717] [2024-11-22 07:23:03,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304271717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:23:03,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:23:03,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 07:23:03,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [658369804] [2024-11-22 07:23:03,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:23:04,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 07:23:04,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:23:04,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 07:23:04,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-22 07:23:04,004 INFO L87 Difference]: Start difference. First operand 6933 states and 11192 transitions. Second operand has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:23:05,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:23:05,317 INFO L93 Difference]: Finished difference Result 18233 states and 29144 transitions. [2024-11-22 07:23:05,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-22 07:23:05,318 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 585 [2024-11-22 07:23:05,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:23:05,371 INFO L225 Difference]: With dead ends: 18233 [2024-11-22 07:23:05,372 INFO L226 Difference]: Without dead ends: 11303 [2024-11-22 07:23:05,397 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2024-11-22 07:23:05,397 INFO L432 NwaCegarLoop]: 405 mSDtfsCounter, 974 mSDsluCounter, 1675 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 2080 SdHoareTripleChecker+Invalid, 553 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 07:23:05,398 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [974 Valid, 2080 Invalid, 553 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 07:23:05,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11303 states. [2024-11-22 07:23:06,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11303 to 5485. [2024-11-22 07:23:06,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5485 states, 4320 states have (on average 1.5296296296296297) internal successors, (6608), 4364 states have internal predecessors, (6608), 1108 states have call successors, (1108), 56 states have call predecessors, (1108), 56 states have return successors, (1108), 1064 states have call predecessors, (1108), 1108 states have call successors, (1108) [2024-11-22 07:23:06,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5485 states to 5485 states and 8824 transitions. [2024-11-22 07:23:06,068 INFO L78 Accepts]: Start accepts. Automaton has 5485 states and 8824 transitions. Word has length 585 [2024-11-22 07:23:06,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:23:06,070 INFO L471 AbstractCegarLoop]: Abstraction has 5485 states and 8824 transitions. [2024-11-22 07:23:06,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.666666666666668) internal successors, (118), 6 states have internal predecessors, (118), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:23:06,070 INFO L276 IsEmpty]: Start isEmpty. Operand 5485 states and 8824 transitions. [2024-11-22 07:23:06,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2024-11-22 07:23:06,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:23:06,082 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:23:06,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 07:23:06,082 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:23:06,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:23:06,087 INFO L85 PathProgramCache]: Analyzing trace with hash -907922053, now seen corresponding path program 1 times [2024-11-22 07:23:06,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:23:06,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142141489] [2024-11-22 07:23:06,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:23:06,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:23:06,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:23:06,826 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:23:06,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:23:06,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142141489] [2024-11-22 07:23:06,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [142141489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:23:06,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:23:06,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 07:23:06,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823939487] [2024-11-22 07:23:06,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:23:06,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 07:23:06,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:23:06,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 07:23:06,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 07:23:06,829 INFO L87 Difference]: Start difference. First operand 5485 states and 8824 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:23:07,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:23:07,866 INFO L93 Difference]: Finished difference Result 17735 states and 28363 transitions. [2024-11-22 07:23:07,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 07:23:07,867 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 585 [2024-11-22 07:23:07,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:23:07,916 INFO L225 Difference]: With dead ends: 17735 [2024-11-22 07:23:07,917 INFO L226 Difference]: Without dead ends: 12253 [2024-11-22 07:23:07,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:23:07,938 INFO L432 NwaCegarLoop]: 442 mSDtfsCounter, 395 mSDsluCounter, 857 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 284 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 1299 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 284 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-22 07:23:07,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 1299 Invalid, 296 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [284 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-22 07:23:07,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12253 states. [2024-11-22 07:23:08,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12253 to 10965. [2024-11-22 07:23:09,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10965 states, 8636 states have (on average 1.5270958777211672) internal successors, (13188), 8724 states have internal predecessors, (13188), 2216 states have call successors, (2216), 112 states have call predecessors, (2216), 112 states have return successors, (2216), 2128 states have call predecessors, (2216), 2216 states have call successors, (2216) [2024-11-22 07:23:09,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10965 states to 10965 states and 17620 transitions. [2024-11-22 07:23:09,052 INFO L78 Accepts]: Start accepts. Automaton has 10965 states and 17620 transitions. Word has length 585 [2024-11-22 07:23:09,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:23:09,053 INFO L471 AbstractCegarLoop]: Abstraction has 10965 states and 17620 transitions. [2024-11-22 07:23:09,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:23:09,053 INFO L276 IsEmpty]: Start isEmpty. Operand 10965 states and 17620 transitions. [2024-11-22 07:23:09,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2024-11-22 07:23:09,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:23:09,062 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:23:09,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 07:23:09,063 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:23:09,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:23:09,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1698101501, now seen corresponding path program 1 times [2024-11-22 07:23:09,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:23:09,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39282165] [2024-11-22 07:23:09,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:23:09,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:23:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:23:09,650 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:23:09,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:23:09,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39282165] [2024-11-22 07:23:09,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [39282165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:23:09,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:23:09,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 07:23:09,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411007584] [2024-11-22 07:23:09,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:23:09,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 07:23:09,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:23:09,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 07:23:09,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:23:09,653 INFO L87 Difference]: Start difference. First operand 10965 states and 17620 transitions. Second operand has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:23:10,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:23:10,770 INFO L93 Difference]: Finished difference Result 18611 states and 29275 transitions. [2024-11-22 07:23:10,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 07:23:10,771 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 585 [2024-11-22 07:23:10,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:23:10,831 INFO L225 Difference]: With dead ends: 18611 [2024-11-22 07:23:10,832 INFO L226 Difference]: Without dead ends: 13129 [2024-11-22 07:23:10,853 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 07:23:10,854 INFO L432 NwaCegarLoop]: 435 mSDtfsCounter, 107 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 07:23:10,854 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 1678 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 07:23:10,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13129 states. [2024-11-22 07:23:11,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13129 to 10965. [2024-11-22 07:23:12,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10965 states, 8636 states have (on average 1.5215377489578508) internal successors, (13140), 8724 states have internal predecessors, (13140), 2216 states have call successors, (2216), 112 states have call predecessors, (2216), 112 states have return successors, (2216), 2128 states have call predecessors, (2216), 2216 states have call successors, (2216) [2024-11-22 07:23:12,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10965 states to 10965 states and 17572 transitions. [2024-11-22 07:23:12,071 INFO L78 Accepts]: Start accepts. Automaton has 10965 states and 17572 transitions. Word has length 585 [2024-11-22 07:23:12,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:23:12,073 INFO L471 AbstractCegarLoop]: Abstraction has 10965 states and 17572 transitions. [2024-11-22 07:23:12,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 23.6) internal successors, (118), 5 states have internal predecessors, (118), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:23:12,073 INFO L276 IsEmpty]: Start isEmpty. Operand 10965 states and 17572 transitions. [2024-11-22 07:23:12,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 586 [2024-11-22 07:23:12,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:23:12,086 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:23:12,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 07:23:12,086 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:23:12,087 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:23:12,087 INFO L85 PathProgramCache]: Analyzing trace with hash -1916807425, now seen corresponding path program 1 times [2024-11-22 07:23:12,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:23:12,087 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546980328] [2024-11-22 07:23:12,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:23:12,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:23:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:23:13,779 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 99 proven. 180 refuted. 0 times theorem prover too weak. 17205 trivial. 0 not checked. [2024-11-22 07:23:13,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:23:13,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546980328] [2024-11-22 07:23:13,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546980328] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 07:23:13,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407307317] [2024-11-22 07:23:13,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:23:13,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:23:13,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:23:13,784 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) [2024-11-22 07:23:13,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 07:23:14,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:23:14,137 INFO L255 TraceCheckSpWp]: Trace formula consists of 1273 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 07:23:14,158 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 07:23:14,604 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 5865 proven. 57 refuted. 0 times theorem prover too weak. 11562 trivial. 0 not checked. [2024-11-22 07:23:14,606 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 07:23:15,158 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 222 proven. 57 refuted. 0 times theorem prover too weak. 17205 trivial. 0 not checked. [2024-11-22 07:23:15,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407307317] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 07:23:15,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 07:23:15,160 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 5, 5] total 19 [2024-11-22 07:23:15,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642972248] [2024-11-22 07:23:15,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 07:23:15,161 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-22 07:23:15,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:23:15,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-22 07:23:15,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2024-11-22 07:23:15,163 INFO L87 Difference]: Start difference. First operand 10965 states and 17572 transitions. Second operand has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 4 states have call successors, (207), 2 states have call predecessors, (207), 4 states have return successors, (208), 4 states have call predecessors, (208), 4 states have call successors, (208) [2024-11-22 07:23:21,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:23:21,568 INFO L93 Difference]: Finished difference Result 38979 states and 61355 transitions. [2024-11-22 07:23:21,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-22 07:23:21,568 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 4 states have call successors, (207), 2 states have call predecessors, (207), 4 states have return successors, (208), 4 states have call predecessors, (208), 4 states have call successors, (208) Word has length 585 [2024-11-22 07:23:21,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:23:21,681 INFO L225 Difference]: With dead ends: 38979 [2024-11-22 07:23:21,681 INFO L226 Difference]: Without dead ends: 28017 [2024-11-22 07:23:21,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1233 GetRequests, 1174 SyntacticMatches, 1 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 885 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=834, Invalid=2706, Unknown=0, NotChecked=0, Total=3540 [2024-11-22 07:23:21,725 INFO L432 NwaCegarLoop]: 409 mSDtfsCounter, 4238 mSDsluCounter, 2935 mSDsCounter, 0 mSdLazyCounter, 3762 mSolverCounterSat, 1362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4310 SdHoareTripleChecker+Valid, 3344 SdHoareTripleChecker+Invalid, 5124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1362 IncrementalHoareTripleChecker+Valid, 3762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-22 07:23:21,726 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4310 Valid, 3344 Invalid, 5124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1362 Valid, 3762 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-22 07:23:21,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28017 states. [2024-11-22 07:23:23,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28017 to 17613. [2024-11-22 07:23:24,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17613 states, 14180 states have (on average 1.5241184767277856) internal successors, (21612), 14332 states have internal predecessors, (21612), 3224 states have call successors, (3224), 208 states have call predecessors, (3224), 208 states have return successors, (3224), 3072 states have call predecessors, (3224), 3224 states have call successors, (3224) [2024-11-22 07:23:24,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17613 states to 17613 states and 28060 transitions. [2024-11-22 07:23:24,104 INFO L78 Accepts]: Start accepts. Automaton has 17613 states and 28060 transitions. Word has length 585 [2024-11-22 07:23:24,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:23:24,105 INFO L471 AbstractCegarLoop]: Abstraction has 17613 states and 28060 transitions. [2024-11-22 07:23:24,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.631578947368421) internal successors, (221), 19 states have internal predecessors, (221), 4 states have call successors, (207), 2 states have call predecessors, (207), 4 states have return successors, (208), 4 states have call predecessors, (208), 4 states have call successors, (208) [2024-11-22 07:23:24,106 INFO L276 IsEmpty]: Start isEmpty. Operand 17613 states and 28060 transitions. [2024-11-22 07:23:24,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2024-11-22 07:23:24,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:23:24,118 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:23:24,131 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 07:23:24,319 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,SelfDestructingSolverStorable11 [2024-11-22 07:23:24,320 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:23:24,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:23:24,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1206886213, now seen corresponding path program 1 times [2024-11-22 07:23:24,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:23:24,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805416260] [2024-11-22 07:23:24,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:23:24,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:23:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:23:26,825 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 99 proven. 180 refuted. 0 times theorem prover too weak. 17205 trivial. 0 not checked. [2024-11-22 07:23:26,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:23:26,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805416260] [2024-11-22 07:23:26,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805416260] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 07:23:26,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498161613] [2024-11-22 07:23:26,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:23:26,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:23:26,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:23:26,827 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 07:23:26,829 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 07:23:27,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:23:27,100 INFO L255 TraceCheckSpWp]: Trace formula consists of 1272 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-22 07:23:27,113 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 07:23:28,851 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17484 trivial. 0 not checked. [2024-11-22 07:23:28,853 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 07:23:28,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1498161613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:23:28,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 07:23:28,854 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [19] total 23 [2024-11-22 07:23:28,854 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091301239] [2024-11-22 07:23:28,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:23:28,855 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 07:23:28,855 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:23:28,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 07:23:28,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=445, Unknown=0, NotChecked=0, Total=506 [2024-11-22 07:23:28,857 INFO L87 Difference]: Start difference. First operand 17613 states and 28060 transitions. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 5 states have internal predecessors, (119), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:23:33,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:23:33,406 INFO L93 Difference]: Finished difference Result 61383 states and 97565 transitions. [2024-11-22 07:23:33,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 07:23:33,407 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 5 states have internal predecessors, (119), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) Word has length 586 [2024-11-22 07:23:33,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:23:33,581 INFO L225 Difference]: With dead ends: 61383 [2024-11-22 07:23:33,581 INFO L226 Difference]: Without dead ends: 43773 [2024-11-22 07:23:33,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 584 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=85, Invalid=617, Unknown=0, NotChecked=0, Total=702 [2024-11-22 07:23:33,655 INFO L432 NwaCegarLoop]: 805 mSDtfsCounter, 1084 mSDsluCounter, 1696 mSDsCounter, 0 mSdLazyCounter, 831 mSolverCounterSat, 377 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1084 SdHoareTripleChecker+Valid, 2501 SdHoareTripleChecker+Invalid, 1208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 377 IncrementalHoareTripleChecker+Valid, 831 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 07:23:33,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1084 Valid, 2501 Invalid, 1208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [377 Valid, 831 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 07:23:33,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43773 states. [2024-11-22 07:23:37,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43773 to 26837. [2024-11-22 07:23:37,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26837 states, 21688 states have (on average 1.5223164883806712) internal successors, (33016), 21916 states have internal predecessors, (33016), 4836 states have call successors, (4836), 312 states have call predecessors, (4836), 312 states have return successors, (4836), 4608 states have call predecessors, (4836), 4836 states have call successors, (4836) [2024-11-22 07:23:37,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26837 states to 26837 states and 42688 transitions. [2024-11-22 07:23:37,189 INFO L78 Accepts]: Start accepts. Automaton has 26837 states and 42688 transitions. Word has length 586 [2024-11-22 07:23:37,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:23:37,190 INFO L471 AbstractCegarLoop]: Abstraction has 26837 states and 42688 transitions. [2024-11-22 07:23:37,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 5 states have internal predecessors, (119), 1 states have call successors, (94), 1 states have call predecessors, (94), 1 states have return successors, (94), 1 states have call predecessors, (94), 1 states have call successors, (94) [2024-11-22 07:23:37,191 INFO L276 IsEmpty]: Start isEmpty. Operand 26837 states and 42688 transitions. [2024-11-22 07:23:37,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2024-11-22 07:23:37,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:23:37,205 INFO L215 NwaCegarLoop]: trace histogram [94, 94, 94, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:23:37,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-22 07:23:37,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-22 07:23:37,406 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:23:37,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:23:37,407 INFO L85 PathProgramCache]: Analyzing trace with hash 505821635, now seen corresponding path program 1 times [2024-11-22 07:23:37,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:23:37,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922901687] [2024-11-22 07:23:37,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:23:37,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:23:37,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:23:39,998 INFO L134 CoverageAnalysis]: Checked inductivity of 17484 backedges. 99 proven. 180 refuted. 0 times theorem prover too weak. 17205 trivial. 0 not checked. [2024-11-22 07:23:39,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:23:39,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922901687] [2024-11-22 07:23:39,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922901687] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 07:23:39,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596863469] [2024-11-22 07:23:39,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:23:39,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:23:39,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:23:40,002 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 07:23:40,003 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 07:23:40,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:23:40,329 INFO L255 TraceCheckSpWp]: Trace formula consists of 1272 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-22 07:23:40,338 INFO L278 TraceCheckSpWp]: Computing forward predicates...