./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-12.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-12.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 b50c918f4161b5cc99814dedbb1d5f1068fe72db189eac8c3c500593eb4daaee --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 14:08:09,799 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 14:08:09,861 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 14:08:09,864 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 14:08:09,866 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 14:08:09,885 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 14:08:09,887 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 14:08:09,887 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 14:08:09,888 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 14:08:09,888 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 14:08:09,889 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 14:08:09,889 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 14:08:09,889 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 14:08:09,891 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 14:08:09,891 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 14:08:09,891 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 14:08:09,892 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 14:08:09,892 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 14:08:09,892 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 14:08:09,892 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 14:08:09,892 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 14:08:09,895 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 14:08:09,895 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 14:08:09,896 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 14:08:09,896 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 14:08:09,896 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 14:08:09,896 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 14:08:09,896 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 14:08:09,896 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 14:08:09,896 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 14:08:09,897 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 14:08:09,897 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 14:08:09,897 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 14:08:09,897 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 14:08:09,897 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 14:08:09,897 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 14:08:09,898 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 14:08:09,898 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 14:08:09,898 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 14:08:09,898 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 14:08:09,898 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 14:08:09,900 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 14:08:09,901 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b50c918f4161b5cc99814dedbb1d5f1068fe72db189eac8c3c500593eb4daaee [2024-11-16 14:08:10,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 14:08:10,118 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 14:08:10,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 14:08:10,122 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 14:08:10,122 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 14:08:10,123 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-12.i [2024-11-16 14:08:11,308 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 14:08:11,500 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 14:08:11,501 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-12.i [2024-11-16 14:08:11,509 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b46884d4/d29f11bcca3642acba4be254cf013455/FLAG918ca7fa8 [2024-11-16 14:08:11,882 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5b46884d4/d29f11bcca3642acba4be254cf013455 [2024-11-16 14:08:11,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 14:08:11,885 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 14:08:11,886 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 14:08:11,886 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 14:08:11,890 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 14:08:11,891 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:08:11" (1/1) ... [2024-11-16 14:08:11,891 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@679a77e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:08:11, skipping insertion in model container [2024-11-16 14:08:11,891 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 02:08:11" (1/1) ... [2024-11-16 14:08:11,918 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 14:08:12,058 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_fillercodestructure_filler-pe-co_file-12.i[919,932] [2024-11-16 14:08:12,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 14:08:12,154 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 14:08:12,166 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_fillercodestructure_filler-pe-co_file-12.i[919,932] [2024-11-16 14:08:12,202 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 14:08:12,220 INFO L204 MainTranslator]: Completed translation [2024-11-16 14:08:12,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:08:12 WrapperNode [2024-11-16 14:08:12,221 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 14:08:12,222 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 14:08:12,222 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 14:08:12,222 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 14:08:12,227 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:08:12" (1/1) ... [2024-11-16 14:08:12,234 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:08:12" (1/1) ... [2024-11-16 14:08:12,267 INFO L138 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 239 [2024-11-16 14:08:12,268 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 14:08:12,268 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 14:08:12,268 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 14:08:12,268 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 14:08:12,276 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:08:12" (1/1) ... [2024-11-16 14:08:12,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:08:12" (1/1) ... [2024-11-16 14:08:12,281 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:08:12" (1/1) ... [2024-11-16 14:08:12,306 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]. [2024-11-16 14:08:12,306 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:08:12" (1/1) ... [2024-11-16 14:08:12,307 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:08:12" (1/1) ... [2024-11-16 14:08:12,317 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:08:12" (1/1) ... [2024-11-16 14:08:12,321 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:08:12" (1/1) ... [2024-11-16 14:08:12,322 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:08:12" (1/1) ... [2024-11-16 14:08:12,327 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:08:12" (1/1) ... [2024-11-16 14:08:12,331 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 14:08:12,333 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 14:08:12,333 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 14:08:12,334 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 14:08:12,334 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:08:12" (1/1) ... [2024-11-16 14:08:12,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 14:08:12,347 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 14:08:12,365 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) [2024-11-16 14:08:12,368 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 [2024-11-16 14:08:12,402 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 14:08:12,402 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-16 14:08:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-16 14:08:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 14:08:12,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 14:08:12,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 14:08:12,480 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 14:08:12,481 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 14:08:12,850 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-16 14:08:12,850 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 14:08:12,864 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 14:08:12,865 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 14:08:12,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:08:12 BoogieIcfgContainer [2024-11-16 14:08:12,865 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 14:08:12,868 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 14:08:12,868 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 14:08:12,871 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 14:08:12,871 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 02:08:11" (1/3) ... [2024-11-16 14:08:12,872 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d22969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:08:12, skipping insertion in model container [2024-11-16 14:08:12,872 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 02:08:12" (2/3) ... [2024-11-16 14:08:12,873 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67d22969 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 02:08:12, skipping insertion in model container [2024-11-16 14:08:12,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 02:08:12" (3/3) ... [2024-11-16 14:08:12,875 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-12.i [2024-11-16 14:08:12,890 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 14:08:12,890 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 14:08:12,937 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 14:08:12,942 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;@3e0f03e3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 14:08:12,942 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 14:08:12,947 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 65 states have (on average 1.4) internal successors, (91), 66 states have internal predecessors, (91), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-16 14:08:12,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-16 14:08:12,963 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:08:12,964 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:08:12,964 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:08:12,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:08:12,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1624647565, now seen corresponding path program 1 times [2024-11-16 14:08:12,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:08:12,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445909357] [2024-11-16 14:08:12,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:08:12,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:08:13,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,250 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:08:13,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:08:13,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:08:13,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:08:13,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:08:13,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:08:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:08:13,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:08:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:08:13,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 14:08:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 14:08:13,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 14:08:13,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 14:08:13,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 14:08:13,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 14:08:13,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:08:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 14:08:13,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 14:08:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 14:08:13,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 14:08:13,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 14:08:13,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 14:08:13,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-16 14:08:13,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 14:08:13,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-16 14:08:13,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 14:08:13,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 14:08:13,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 14:08:13,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 14:08:13,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 14:08:13,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-16 14:08:13,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 14:08:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-11-16 14:08:13,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-16 14:08:13,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-16 14:08:13,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-16 14:08:13,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-11-16 14:08:13,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-16 14:08:13,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-16 14:08:13,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-11-16 14:08:13,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-11-16 14:08:13,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-16 14:08:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:13,477 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-16 14:08:13,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:08:13,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445909357] [2024-11-16 14:08:13,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445909357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:08:13,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:08:13,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 14:08:13,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311537190] [2024-11-16 14:08:13,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:08:13,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 14:08:13,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:08:13,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 14:08:13,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 14:08:13,506 INFO L87 Difference]: Start difference. First operand has 110 states, 65 states have (on average 1.4) internal successors, (91), 66 states have internal predecessors, (91), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) Second operand has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-16 14:08:13,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:08:13,544 INFO L93 Difference]: Finished difference Result 212 states and 385 transitions. [2024-11-16 14:08:13,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 14:08:13,546 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) Word has length 258 [2024-11-16 14:08:13,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:08:13,552 INFO L225 Difference]: With dead ends: 212 [2024-11-16 14:08:13,552 INFO L226 Difference]: Without dead ends: 105 [2024-11-16 14:08:13,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 14:08:13,557 INFO L432 NwaCegarLoop]: 167 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, 167 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 [2024-11-16 14:08:13,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 14:08:13,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-16 14:08:13,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-16 14:08:13,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 61 states have (on average 1.360655737704918) internal successors, (83), 61 states have internal predecessors, (83), 42 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-16 14:08:13,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 167 transitions. [2024-11-16 14:08:13,599 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 167 transitions. Word has length 258 [2024-11-16 14:08:13,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:08:13,599 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 167 transitions. [2024-11-16 14:08:13,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.5) internal successors, (51), 2 states have internal predecessors, (51), 2 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-16 14:08:13,599 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 167 transitions. [2024-11-16 14:08:13,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2024-11-16 14:08:13,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:08:13,607 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:08:13,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 14:08:13,607 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:08:13,608 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:08:13,608 INFO L85 PathProgramCache]: Analyzing trace with hash 29981451, now seen corresponding path program 1 times [2024-11-16 14:08:13,608 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:08:13,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541800434] [2024-11-16 14:08:13,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:08:13,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:08:13,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:08:14,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:08:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:08:14,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:08:14,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:08:14,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:08:14,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:08:14,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:08:14,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:08:14,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 14:08:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 14:08:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 14:08:14,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 14:08:14,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 14:08:14,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 14:08:14,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:08:14,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 14:08:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 14:08:14,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,495 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 14:08:14,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 14:08:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 14:08:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 14:08:14,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-16 14:08:14,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 14:08:14,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-16 14:08:14,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 14:08:14,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 14:08:14,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 14:08:14,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 14:08:14,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 14:08:14,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-16 14:08:14,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 14:08:14,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-11-16 14:08:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-16 14:08:14,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-16 14:08:14,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-16 14:08:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-11-16 14:08:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-16 14:08:14,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-16 14:08:14,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-11-16 14:08:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-11-16 14:08:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-16 14:08:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:14,601 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3444 trivial. 0 not checked. [2024-11-16 14:08:14,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:08:14,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541800434] [2024-11-16 14:08:14,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541800434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 14:08:14,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 14:08:14,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 14:08:14,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624119542] [2024-11-16 14:08:14,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 14:08:14,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 14:08:14,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:08:14,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 14:08:14,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 14:08:14,604 INFO L87 Difference]: Start difference. First operand 105 states and 167 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-16 14:08:14,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:08:14,977 INFO L93 Difference]: Finished difference Result 311 states and 497 transitions. [2024-11-16 14:08:14,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 14:08:14,980 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) Word has length 258 [2024-11-16 14:08:14,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:08:14,983 INFO L225 Difference]: With dead ends: 311 [2024-11-16 14:08:14,985 INFO L226 Difference]: Without dead ends: 209 [2024-11-16 14:08:14,986 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 88 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 14:08:14,987 INFO L432 NwaCegarLoop]: 161 mSDtfsCounter, 87 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 14:08:14,987 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 532 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 14:08:14,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-16 14:08:15,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 177. [2024-11-16 14:08:15,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 90 states have (on average 1.2444444444444445) internal successors, (112), 90 states have internal predecessors, (112), 84 states have call successors, (84), 2 states have call predecessors, (84), 2 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-16 14:08:15,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 280 transitions. [2024-11-16 14:08:15,035 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 280 transitions. Word has length 258 [2024-11-16 14:08:15,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:08:15,036 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 280 transitions. [2024-11-16 14:08:15,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 1 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (42), 1 states have call predecessors, (42), 1 states have call successors, (42) [2024-11-16 14:08:15,036 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 280 transitions. [2024-11-16 14:08:15,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-11-16 14:08:15,042 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:08:15,042 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:08:15,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 14:08:15,042 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:08:15,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:08:15,043 INFO L85 PathProgramCache]: Analyzing trace with hash 1100120480, now seen corresponding path program 1 times [2024-11-16 14:08:15,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:08:15,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54691614] [2024-11-16 14:08:15,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:08:15,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:08:15,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:08:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:08:15,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:08:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:08:15,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:08:15,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:08:15,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:08:15,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:08:15,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:08:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 14:08:15,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 14:08:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 14:08:15,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 14:08:15,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 14:08:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 14:08:15,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:08:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 14:08:15,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 14:08:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 14:08:15,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 14:08:15,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 14:08:15,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 14:08:15,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,551 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-16 14:08:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 14:08:15,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-16 14:08:15,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 14:08:15,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 14:08:15,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 14:08:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 14:08:15,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 14:08:15,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-16 14:08:15,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 14:08:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-11-16 14:08:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-16 14:08:15,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-16 14:08:15,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-16 14:08:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-11-16 14:08:15,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-16 14:08:15,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-16 14:08:15,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-11-16 14:08:15,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-11-16 14:08:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-16 14:08:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,619 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 18 proven. 105 refuted. 0 times theorem prover too weak. 3321 trivial. 0 not checked. [2024-11-16 14:08:15,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:08:15,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54691614] [2024-11-16 14:08:15,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54691614] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 14:08:15,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046966962] [2024-11-16 14:08:15,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:08:15,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 14:08:15,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 14:08:15,624 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) [2024-11-16 14:08:15,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 14:08:15,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:15,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-16 14:08:15,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 14:08:17,094 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 813 proven. 222 refuted. 0 times theorem prover too weak. 2409 trivial. 0 not checked. [2024-11-16 14:08:17,095 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 14:08:17,862 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 18 proven. 105 refuted. 0 times theorem prover too weak. 3321 trivial. 0 not checked. [2024-11-16 14:08:17,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046966962] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 14:08:17,862 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 14:08:17,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 8] total 23 [2024-11-16 14:08:17,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023071286] [2024-11-16 14:08:17,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 14:08:17,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-16 14:08:17,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:08:17,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-16 14:08:17,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2024-11-16 14:08:17,868 INFO L87 Difference]: Start difference. First operand 177 states and 280 transitions. Second operand has 23 states, 23 states have (on average 6.565217391304348) internal successors, (151), 23 states have internal predecessors, (151), 7 states have call successors, (126), 4 states have call predecessors, (126), 8 states have return successors, (126), 7 states have call predecessors, (126), 7 states have call successors, (126) [2024-11-16 14:08:21,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:08:21,939 INFO L93 Difference]: Finished difference Result 1145 states and 1715 transitions. [2024-11-16 14:08:21,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2024-11-16 14:08:21,940 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 6.565217391304348) internal successors, (151), 23 states have internal predecessors, (151), 7 states have call successors, (126), 4 states have call predecessors, (126), 8 states have return successors, (126), 7 states have call predecessors, (126), 7 states have call successors, (126) Word has length 259 [2024-11-16 14:08:21,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:08:21,950 INFO L225 Difference]: With dead ends: 1145 [2024-11-16 14:08:21,950 INFO L226 Difference]: Without dead ends: 1043 [2024-11-16 14:08:21,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 711 GetRequests, 597 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4841 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2647, Invalid=10693, Unknown=0, NotChecked=0, Total=13340 [2024-11-16 14:08:21,956 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 978 mSDsluCounter, 1801 mSDsCounter, 0 mSdLazyCounter, 3815 mSolverCounterSat, 635 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 2103 SdHoareTripleChecker+Invalid, 4450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 635 IncrementalHoareTripleChecker+Valid, 3815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 14:08:21,957 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [992 Valid, 2103 Invalid, 4450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [635 Valid, 3815 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 14:08:21,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2024-11-16 14:08:22,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 510. [2024-11-16 14:08:22,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 510 states, 310 states have (on average 1.3258064516129033) internal successors, (411), 312 states have internal predecessors, (411), 181 states have call successors, (181), 18 states have call predecessors, (181), 18 states have return successors, (181), 179 states have call predecessors, (181), 181 states have call successors, (181) [2024-11-16 14:08:22,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 510 states to 510 states and 773 transitions. [2024-11-16 14:08:22,042 INFO L78 Accepts]: Start accepts. Automaton has 510 states and 773 transitions. Word has length 259 [2024-11-16 14:08:22,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:08:22,044 INFO L471 AbstractCegarLoop]: Abstraction has 510 states and 773 transitions. [2024-11-16 14:08:22,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 6.565217391304348) internal successors, (151), 23 states have internal predecessors, (151), 7 states have call successors, (126), 4 states have call predecessors, (126), 8 states have return successors, (126), 7 states have call predecessors, (126), 7 states have call successors, (126) [2024-11-16 14:08:22,045 INFO L276 IsEmpty]: Start isEmpty. Operand 510 states and 773 transitions. [2024-11-16 14:08:22,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2024-11-16 14:08:22,049 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:08:22,049 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:08:22,064 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 14:08:22,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 14:08:22,253 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:08:22,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:08:22,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1841537119, now seen corresponding path program 1 times [2024-11-16 14:08:22,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:08:22,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334397211] [2024-11-16 14:08:22,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:08:22,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:08:22,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 14:08:22,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [981478435] [2024-11-16 14:08:22,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:08:22,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 14:08:22,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 14:08:22,371 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) [2024-11-16 14:08:22,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 14:08:22,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:22,507 INFO L255 TraceCheckSpWp]: Trace formula consists of 570 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-16 14:08:22,512 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 14:08:23,300 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1163 proven. 24 refuted. 0 times theorem prover too weak. 2257 trivial. 0 not checked. [2024-11-16 14:08:23,300 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 14:08:29,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:08:29,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334397211] [2024-11-16 14:08:29,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-16 14:08:29,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981478435] [2024-11-16 14:08:29,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981478435] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 14:08:29,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-16 14:08:29,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-16 14:08:29,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190078807] [2024-11-16 14:08:29,266 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-16 14:08:29,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 14:08:29,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:08:29,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 14:08:29,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=115, Unknown=1, NotChecked=0, Total=156 [2024-11-16 14:08:29,268 INFO L87 Difference]: Start difference. First operand 510 states and 773 transitions. Second operand has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-16 14:08:33,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:08:33,197 INFO L93 Difference]: Finished difference Result 1344 states and 1978 transitions. [2024-11-16 14:08:33,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-16 14:08:33,198 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 259 [2024-11-16 14:08:33,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:08:33,206 INFO L225 Difference]: With dead ends: 1344 [2024-11-16 14:08:33,206 INFO L226 Difference]: Without dead ends: 921 [2024-11-16 14:08:33,208 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=295, Invalid=696, Unknown=1, NotChecked=0, Total=992 [2024-11-16 14:08:33,210 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 239 mSDsluCounter, 805 mSDsCounter, 0 mSdLazyCounter, 984 mSolverCounterSat, 234 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 1020 SdHoareTripleChecker+Invalid, 1227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 234 IncrementalHoareTripleChecker+Valid, 984 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-16 14:08:33,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 1020 Invalid, 1227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [234 Valid, 984 Invalid, 9 Unknown, 0 Unchecked, 2.8s Time] [2024-11-16 14:08:33,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2024-11-16 14:08:33,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 642. [2024-11-16 14:08:33,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 392 states have (on average 1.3214285714285714) internal successors, (518), 394 states have internal predecessors, (518), 223 states have call successors, (223), 26 states have call predecessors, (223), 26 states have return successors, (223), 221 states have call predecessors, (223), 223 states have call successors, (223) [2024-11-16 14:08:33,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 964 transitions. [2024-11-16 14:08:33,271 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 964 transitions. Word has length 259 [2024-11-16 14:08:33,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:08:33,272 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 964 transitions. [2024-11-16 14:08:33,272 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-16 14:08:33,272 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 964 transitions. [2024-11-16 14:08:33,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-16 14:08:33,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:08:33,274 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:08:33,291 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 14:08:33,474 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,SelfDestructingSolverStorable3 [2024-11-16 14:08:33,475 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:08:33,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:08:33,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1654000132, now seen corresponding path program 1 times [2024-11-16 14:08:33,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:08:33,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630105271] [2024-11-16 14:08:33,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:08:33,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:08:33,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-16 14:08:33,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-16 14:08:33,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-16 14:08:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-16 14:08:33,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-16 14:08:33,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,718 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-16 14:08:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-16 14:08:33,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-16 14:08:33,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,723 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-16 14:08:33,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-16 14:08:33,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-16 14:08:33,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-16 14:08:33,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-16 14:08:33,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-16 14:08:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-16 14:08:33,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-16 14:08:33,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-11-16 14:08:33,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,732 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-16 14:08:33,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-11-16 14:08:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-16 14:08:33,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-16 14:08:33,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-16 14:08:33,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-11-16 14:08:33,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-16 14:08:33,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-16 14:08:33,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,744 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-16 14:08:33,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-16 14:08:33,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-16 14:08:33,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-16 14:08:33,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-16 14:08:33,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2024-11-16 14:08:33,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-16 14:08:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2024-11-16 14:08:33,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-16 14:08:33,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-16 14:08:33,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-16 14:08:33,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-11-16 14:08:33,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-16 14:08:33,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-11-16 14:08:33,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-11-16 14:08:33,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2024-11-16 14:08:33,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-16 14:08:33,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,834 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 84 proven. 39 refuted. 0 times theorem prover too weak. 3321 trivial. 0 not checked. [2024-11-16 14:08:33,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:08:33,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630105271] [2024-11-16 14:08:33,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630105271] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 14:08:33,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142587228] [2024-11-16 14:08:33,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:08:33,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 14:08:33,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 14:08:33,836 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) [2024-11-16 14:08:33,837 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 14:08:33,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:33,957 INFO L255 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-16 14:08:33,962 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 14:08:34,639 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1553 proven. 39 refuted. 0 times theorem prover too weak. 1852 trivial. 0 not checked. [2024-11-16 14:08:34,639 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 14:08:35,342 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 84 proven. 39 refuted. 0 times theorem prover too weak. 3321 trivial. 0 not checked. [2024-11-16 14:08:35,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142587228] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 14:08:35,342 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 14:08:35,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-16 14:08:35,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1337315099] [2024-11-16 14:08:35,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 14:08:35,344 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-16 14:08:35,344 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:08:35,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-16 14:08:35,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 14:08:35,345 INFO L87 Difference]: Start difference. First operand 642 states and 964 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2024-11-16 14:08:36,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:08:36,054 INFO L93 Difference]: Finished difference Result 1243 states and 1846 transitions. [2024-11-16 14:08:36,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-16 14:08:36,054 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) Word has length 260 [2024-11-16 14:08:36,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:08:36,058 INFO L225 Difference]: With dead ends: 1243 [2024-11-16 14:08:36,058 INFO L226 Difference]: Without dead ends: 696 [2024-11-16 14:08:36,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 610 GetRequests, 600 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-16 14:08:36,060 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 201 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 228 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 344 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 14:08:36,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [228 Valid, 267 Invalid, 344 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 14:08:36,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 696 states. [2024-11-16 14:08:36,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 696 to 662. [2024-11-16 14:08:36,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 407 states have (on average 1.28009828009828) internal successors, (521), 409 states have internal predecessors, (521), 223 states have call successors, (223), 31 states have call predecessors, (223), 31 states have return successors, (223), 221 states have call predecessors, (223), 223 states have call successors, (223) [2024-11-16 14:08:36,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 967 transitions. [2024-11-16 14:08:36,130 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 967 transitions. Word has length 260 [2024-11-16 14:08:36,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:08:36,132 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 967 transitions. [2024-11-16 14:08:36,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 2 states have call successors, (55), 2 states have call predecessors, (55), 4 states have return successors, (56), 2 states have call predecessors, (56), 2 states have call successors, (56) [2024-11-16 14:08:36,133 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 967 transitions. [2024-11-16 14:08:36,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-16 14:08:36,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:08:36,134 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:08:36,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 14:08:36,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 14:08:36,335 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:08:36,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:08:36,336 INFO L85 PathProgramCache]: Analyzing trace with hash 1457486627, now seen corresponding path program 1 times [2024-11-16 14:08:36,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:08:36,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76476151] [2024-11-16 14:08:36,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:08:36,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:08:36,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 14:08:36,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [495235702] [2024-11-16 14:08:36,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:08:36,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 14:08:36,444 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 14:08:36,445 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 14:08:36,446 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 14:08:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:08:36,573 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-16 14:08:36,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 14:08:38,463 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 1163 proven. 24 refuted. 0 times theorem prover too weak. 2257 trivial. 0 not checked. [2024-11-16 14:08:38,463 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 14:09:03,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:09:03,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76476151] [2024-11-16 14:09:03,891 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-16 14:09:03,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495235702] [2024-11-16 14:09:03,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495235702] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 14:09:03,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-16 14:09:03,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-16 14:09:03,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637287344] [2024-11-16 14:09:03,893 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-16 14:09:03,893 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-16 14:09:03,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:09:03,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-16 14:09:03,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=109, Unknown=5, NotChecked=0, Total=156 [2024-11-16 14:09:03,894 INFO L87 Difference]: Start difference. First operand 662 states and 967 transitions. Second operand has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-16 14:09:09,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:09:09,764 INFO L93 Difference]: Finished difference Result 2317 states and 3284 transitions. [2024-11-16 14:09:09,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-16 14:09:09,765 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) Word has length 260 [2024-11-16 14:09:09,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:09:09,772 INFO L225 Difference]: With dead ends: 2317 [2024-11-16 14:09:09,772 INFO L226 Difference]: Without dead ends: 1754 [2024-11-16 14:09:09,774 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 272 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 23.9s TimeCoverageRelationStatistics Valid=384, Invalid=943, Unknown=5, NotChecked=0, Total=1332 [2024-11-16 14:09:09,774 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 476 mSDsluCounter, 530 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 177 mSolverCounterUnsat, 33 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 1135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 33 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-16 14:09:09,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 706 Invalid, 1135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 925 Invalid, 33 Unknown, 0 Unchecked, 3.8s Time] [2024-11-16 14:09:09,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2024-11-16 14:09:09,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 1411. [2024-11-16 14:09:09,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1411 states, 876 states have (on average 1.2636986301369864) internal successors, (1107), 883 states have internal predecessors, (1107), 459 states have call successors, (459), 75 states have call predecessors, (459), 75 states have return successors, (459), 452 states have call predecessors, (459), 459 states have call successors, (459) [2024-11-16 14:09:09,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1411 states to 1411 states and 2025 transitions. [2024-11-16 14:09:09,921 INFO L78 Accepts]: Start accepts. Automaton has 1411 states and 2025 transitions. Word has length 260 [2024-11-16 14:09:09,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:09:09,922 INFO L471 AbstractCegarLoop]: Abstraction has 1411 states and 2025 transitions. [2024-11-16 14:09:09,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.555555555555555) internal successors, (59), 8 states have internal predecessors, (59), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (42), 2 states have call predecessors, (42), 2 states have call successors, (42) [2024-11-16 14:09:09,922 INFO L276 IsEmpty]: Start isEmpty. Operand 1411 states and 2025 transitions. [2024-11-16 14:09:09,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-16 14:09:09,924 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:09:09,924 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:09:09,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-16 14:09:10,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 14:09:10,125 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:09:10,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:09:10,125 INFO L85 PathProgramCache]: Analyzing trace with hash -289325432, now seen corresponding path program 1 times [2024-11-16 14:09:10,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:09:10,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350260036] [2024-11-16 14:09:10,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:09:10,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:09:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 14:09:10,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1996853010] [2024-11-16 14:09:10,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:09:10,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 14:09:10,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 14:09:10,236 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 14:09:10,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 14:09:10,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:09:10,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 569 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-16 14:09:10,370 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 14:09:18,999 INFO L134 CoverageAnalysis]: Checked inductivity of 3444 backedges. 689 proven. 219 refuted. 0 times theorem prover too weak. 2536 trivial. 0 not checked. [2024-11-16 14:09:18,999 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 14:09:23,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 14:09:23,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350260036] [2024-11-16 14:09:23,409 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-16 14:09:23,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1996853010] [2024-11-16 14:09:23,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1996853010] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 14:09:23,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-16 14:09:23,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2024-11-16 14:09:23,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369485909] [2024-11-16 14:09:23,410 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-16 14:09:23,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-16 14:09:23,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 14:09:23,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-16 14:09:23,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=257, Unknown=0, NotChecked=0, Total=342 [2024-11-16 14:09:23,411 INFO L87 Difference]: Start difference. First operand 1411 states and 2025 transitions. Second operand has 13 states, 13 states have (on average 5.0) internal successors, (65), 12 states have internal predecessors, (65), 3 states have call successors, (42), 3 states have call predecessors, (42), 5 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-16 14:09:42,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 14:09:42,185 INFO L93 Difference]: Finished difference Result 3906 states and 5542 transitions. [2024-11-16 14:09:42,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2024-11-16 14:09:42,186 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 12 states have internal predecessors, (65), 3 states have call successors, (42), 3 states have call predecessors, (42), 5 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) Word has length 260 [2024-11-16 14:09:42,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 14:09:42,197 INFO L225 Difference]: With dead ends: 3906 [2024-11-16 14:09:42,198 INFO L226 Difference]: Without dead ends: 2596 [2024-11-16 14:09:42,202 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 537 GetRequests, 476 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1082 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=938, Invalid=2967, Unknown=1, NotChecked=0, Total=3906 [2024-11-16 14:09:42,203 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 632 mSDsluCounter, 756 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 467 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 634 SdHoareTripleChecker+Valid, 941 SdHoareTripleChecker+Invalid, 1910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 467 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.8s IncrementalHoareTripleChecker+Time [2024-11-16 14:09:42,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [634 Valid, 941 Invalid, 1910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [467 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 8.8s Time] [2024-11-16 14:09:42,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2596 states. [2024-11-16 14:09:42,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2596 to 1693. [2024-11-16 14:09:42,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1693 states, 1071 states have (on average 1.284780578898226) internal successors, (1376), 1077 states have internal predecessors, (1376), 537 states have call successors, (537), 84 states have call predecessors, (537), 84 states have return successors, (537), 531 states have call predecessors, (537), 537 states have call successors, (537) [2024-11-16 14:09:42,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1693 states to 1693 states and 2450 transitions. [2024-11-16 14:09:42,410 INFO L78 Accepts]: Start accepts. Automaton has 1693 states and 2450 transitions. Word has length 260 [2024-11-16 14:09:42,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 14:09:42,411 INFO L471 AbstractCegarLoop]: Abstraction has 1693 states and 2450 transitions. [2024-11-16 14:09:42,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 5.0) internal successors, (65), 12 states have internal predecessors, (65), 3 states have call successors, (42), 3 states have call predecessors, (42), 5 states have return successors, (42), 3 states have call predecessors, (42), 3 states have call successors, (42) [2024-11-16 14:09:42,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1693 states and 2450 transitions. [2024-11-16 14:09:42,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-16 14:09:42,412 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 14:09:42,412 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 14:09:42,427 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 14:09:42,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 14:09:42,613 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 14:09:42,614 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 14:09:42,614 INFO L85 PathProgramCache]: Analyzing trace with hash 1544002758, now seen corresponding path program 1 times [2024-11-16 14:09:42,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 14:09:42,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390834037] [2024-11-16 14:09:42,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:09:42,614 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 14:09:42,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-16 14:09:42,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1218245821] [2024-11-16 14:09:42,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 14:09:42,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 14:09:42,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 14:09:42,748 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 14:09:42,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 14:09:42,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 14:09:42,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-16 14:09:42,905 INFO L278 TraceCheckSpWp]: Computing forward predicates...