./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-37.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-37.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 bb0766965719962bb88d82eca60f2d4be80ff0b6b6f05c2a75f9469a0fc9b6e7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 01:16:42,952 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 01:16:43,032 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 01:16:43,035 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 01:16:43,038 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 01:16:43,059 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 01:16:43,060 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 01:16:43,060 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 01:16:43,061 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 01:16:43,061 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 01:16:43,061 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 01:16:43,061 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 01:16:43,062 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 01:16:43,062 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 01:16:43,062 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 01:16:43,063 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 01:16:43,063 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 01:16:43,063 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 01:16:43,064 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 01:16:43,064 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 01:16:43,064 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 01:16:43,065 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 01:16:43,066 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 01:16:43,066 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 01:16:43,066 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 01:16:43,066 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 01:16:43,067 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 01:16:43,067 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 01:16:43,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 01:16:43,068 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 01:16:43,068 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 01:16:43,068 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 01:16:43,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:16:43,069 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 01:16:43,069 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 01:16:43,069 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 01:16:43,069 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 01:16:43,070 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 01:16:43,070 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 01:16:43,070 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 01:16:43,070 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 01:16:43,073 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 01:16:43,073 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bb0766965719962bb88d82eca60f2d4be80ff0b6b6f05c2a75f9469a0fc9b6e7 [2024-11-19 01:16:43,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 01:16:43,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 01:16:43,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 01:16:43,321 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 01:16:43,322 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 01:16:43,323 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-37.i [2024-11-19 01:16:44,845 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 01:16:45,191 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 01:16:45,196 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-37.i [2024-11-19 01:16:45,214 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be804a043/5bdbdb795e0e42a1a654c4a11579ed3f/FLAGd79bf61f9 [2024-11-19 01:16:45,243 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be804a043/5bdbdb795e0e42a1a654c4a11579ed3f [2024-11-19 01:16:45,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 01:16:45,247 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 01:16:45,250 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 01:16:45,254 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 01:16:45,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 01:16:45,263 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:16:45" (1/1) ... [2024-11-19 01:16:45,265 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8639d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:45, skipping insertion in model container [2024-11-19 01:16:45,266 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 01:16:45" (1/1) ... [2024-11-19 01:16:45,317 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 01:16:45,553 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-37.i[917,930] [2024-11-19 01:16:45,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:16:45,672 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 01:16:45,689 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-37.i[917,930] [2024-11-19 01:16:45,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 01:16:45,811 INFO L204 MainTranslator]: Completed translation [2024-11-19 01:16:45,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:45 WrapperNode [2024-11-19 01:16:45,816 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 01:16:45,817 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 01:16:45,817 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 01:16:45,817 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 01:16:45,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:45" (1/1) ... [2024-11-19 01:16:45,857 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:45" (1/1) ... [2024-11-19 01:16:45,949 INFO L138 Inliner]: procedures = 30, calls = 151, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 482 [2024-11-19 01:16:45,951 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 01:16:45,954 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 01:16:45,955 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 01:16:45,955 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 01:16:45,970 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:45" (1/1) ... [2024-11-19 01:16:45,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:45" (1/1) ... [2024-11-19 01:16:45,985 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:45" (1/1) ... [2024-11-19 01:16:45,997 WARN L109 MemorySlicer]: Omit memory slicing because it failed with the following exception: Unsupported: Memory array in LHS [2024-11-19 01:16:45,998 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:45" (1/1) ... [2024-11-19 01:16:45,998 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:45" (1/1) ... [2024-11-19 01:16:46,033 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:45" (1/1) ... [2024-11-19 01:16:46,039 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:45" (1/1) ... [2024-11-19 01:16:46,047 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:45" (1/1) ... [2024-11-19 01:16:46,058 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:45" (1/1) ... [2024-11-19 01:16:46,075 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 01:16:46,076 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 01:16:46,076 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 01:16:46,076 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 01:16:46,077 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:45" (1/1) ... [2024-11-19 01:16:46,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 01:16:46,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:16:46,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 01:16:46,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 01:16:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 01:16:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2024-11-19 01:16:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2024-11-19 01:16:46,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2024-11-19 01:16:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-11-19 01:16:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2024-11-19 01:16:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-11-19 01:16:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 01:16:46,183 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 01:16:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-11-19 01:16:46,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 01:16:46,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 01:16:46,297 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 01:16:46,299 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 01:16:46,925 INFO L? ?]: Removed 140 outVars from TransFormulas that were not future-live. [2024-11-19 01:16:46,925 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 01:16:46,941 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 01:16:46,941 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-19 01:16:46,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:16:46 BoogieIcfgContainer [2024-11-19 01:16:46,943 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 01:16:46,945 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 01:16:46,945 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 01:16:46,948 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 01:16:46,948 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 01:16:45" (1/3) ... [2024-11-19 01:16:46,949 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ff4b21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:16:46, skipping insertion in model container [2024-11-19 01:16:46,949 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 01:16:45" (2/3) ... [2024-11-19 01:16:46,950 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ff4b21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 01:16:46, skipping insertion in model container [2024-11-19 01:16:46,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 01:16:46" (3/3) ... [2024-11-19 01:16:46,951 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-37.i [2024-11-19 01:16:46,967 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 01:16:46,968 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-19 01:16:47,015 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 01:16:47,025 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;@8719289, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 01:16:47,026 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-19 01:16:47,031 INFO L276 IsEmpty]: Start isEmpty. Operand has 105 states, 87 states have (on average 1.4252873563218391) internal successors, (124), 88 states have internal predecessors, (124), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 01:16:47,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 01:16:47,044 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:47,045 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:47,046 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:47,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:47,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1984577287, now seen corresponding path program 1 times [2024-11-19 01:16:47,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:47,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067449555] [2024-11-19 01:16:47,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:47,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:47,446 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-19 01:16:47,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:47,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067449555] [2024-11-19 01:16:47,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067449555] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:16:47,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062765256] [2024-11-19 01:16:47,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:47,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:16:47,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:16:47,450 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 01:16:47,452 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 01:16:47,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:47,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 01:16:47,693 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:16:47,720 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-19 01:16:47,721 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 01:16:47,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062765256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:47,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 01:16:47,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 01:16:47,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211148265] [2024-11-19 01:16:47,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:47,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 01:16:47,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:47,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 01:16:47,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 01:16:47,756 INFO L87 Difference]: Start difference. First operand has 105 states, 87 states have (on average 1.4252873563218391) internal successors, (124), 88 states have internal predecessors, (124), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 01:16:47,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:47,828 INFO L93 Difference]: Finished difference Result 203 states and 317 transitions. [2024-11-19 01:16:47,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 01:16:47,835 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 124 [2024-11-19 01:16:47,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:47,848 INFO L225 Difference]: With dead ends: 203 [2024-11-19 01:16:47,849 INFO L226 Difference]: Without dead ends: 101 [2024-11-19 01:16:47,852 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 01:16:47,883 INFO L432 NwaCegarLoop]: 147 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, 147 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:47,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:16:47,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-11-19 01:16:47,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-11-19 01:16:47,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 84 states have (on average 1.3928571428571428) internal successors, (117), 84 states have internal predecessors, (117), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 01:16:47,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2024-11-19 01:16:47,924 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 147 transitions. Word has length 124 [2024-11-19 01:16:47,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:47,925 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 147 transitions. [2024-11-19 01:16:47,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 2 states have call successors, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 01:16:47,925 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2024-11-19 01:16:47,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 01:16:47,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:47,931 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:47,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 01:16:48,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 01:16:48,133 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:48,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:48,133 INFO L85 PathProgramCache]: Analyzing trace with hash 1790675531, now seen corresponding path program 1 times [2024-11-19 01:16:48,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:48,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12912556] [2024-11-19 01:16:48,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:48,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:48,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:48,344 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:16:48,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:48,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12912556] [2024-11-19 01:16:48,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12912556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:48,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:48,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:16:48,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814201322] [2024-11-19 01:16:48,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:48,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:16:48,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:48,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:16:48,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:16:48,348 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:16:48,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:48,375 INFO L93 Difference]: Finished difference Result 202 states and 295 transitions. [2024-11-19 01:16:48,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:16:48,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2024-11-19 01:16:48,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:48,377 INFO L225 Difference]: With dead ends: 202 [2024-11-19 01:16:48,377 INFO L226 Difference]: Without dead ends: 104 [2024-11-19 01:16:48,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:16:48,379 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 1 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:48,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 421 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:16:48,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-11-19 01:16:48,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 103. [2024-11-19 01:16:48,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 86 states have (on average 1.3837209302325582) internal successors, (119), 86 states have internal predecessors, (119), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 01:16:48,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 149 transitions. [2024-11-19 01:16:48,388 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 149 transitions. Word has length 124 [2024-11-19 01:16:48,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:48,389 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 149 transitions. [2024-11-19 01:16:48,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:16:48,389 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 149 transitions. [2024-11-19 01:16:48,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 01:16:48,391 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:48,391 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:48,391 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 01:16:48,391 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:48,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:48,392 INFO L85 PathProgramCache]: Analyzing trace with hash -1824233395, now seen corresponding path program 1 times [2024-11-19 01:16:48,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:48,392 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1081958988] [2024-11-19 01:16:48,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:48,392 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:48,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:48,534 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:16:48,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:48,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1081958988] [2024-11-19 01:16:48,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1081958988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:48,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:48,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 01:16:48,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79775191] [2024-11-19 01:16:48,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:48,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 01:16:48,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:48,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 01:16:48,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:16:48,537 INFO L87 Difference]: Start difference. First operand 103 states and 149 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:16:48,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:48,561 INFO L93 Difference]: Finished difference Result 206 states and 299 transitions. [2024-11-19 01:16:48,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 01:16:48,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2024-11-19 01:16:48,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:48,571 INFO L225 Difference]: With dead ends: 206 [2024-11-19 01:16:48,572 INFO L226 Difference]: Without dead ends: 106 [2024-11-19 01:16:48,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 01:16:48,573 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 1 mSDsluCounter, 278 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:48,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 422 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 01:16:48,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-11-19 01:16:48,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 105. [2024-11-19 01:16:48,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 88 states have (on average 1.375) internal successors, (121), 88 states have internal predecessors, (121), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 01:16:48,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 151 transitions. [2024-11-19 01:16:48,583 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 151 transitions. Word has length 124 [2024-11-19 01:16:48,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:48,583 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 151 transitions. [2024-11-19 01:16:48,584 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:16:48,584 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 151 transitions. [2024-11-19 01:16:48,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-19 01:16:48,585 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:48,585 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:48,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 01:16:48,586 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:48,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:48,586 INFO L85 PathProgramCache]: Analyzing trace with hash -49226033, now seen corresponding path program 1 times [2024-11-19 01:16:48,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:48,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011691341] [2024-11-19 01:16:48,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:48,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:49,741 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:16:49,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:49,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011691341] [2024-11-19 01:16:49,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011691341] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:49,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:49,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 01:16:49,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207347802] [2024-11-19 01:16:49,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:49,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 01:16:49,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:49,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 01:16:49,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 01:16:49,760 INFO L87 Difference]: Start difference. First operand 105 states and 151 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:16:50,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:50,050 INFO L93 Difference]: Finished difference Result 209 states and 301 transitions. [2024-11-19 01:16:50,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:16:50,051 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 124 [2024-11-19 01:16:50,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:50,054 INFO L225 Difference]: With dead ends: 209 [2024-11-19 01:16:50,054 INFO L226 Difference]: Without dead ends: 107 [2024-11-19 01:16:50,055 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:16:50,058 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 163 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:50,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 346 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 01:16:50,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-19 01:16:50,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 105. [2024-11-19 01:16:50,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 88 states have (on average 1.3636363636363635) internal successors, (120), 88 states have internal predecessors, (120), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 01:16:50,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 150 transitions. [2024-11-19 01:16:50,077 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 150 transitions. Word has length 124 [2024-11-19 01:16:50,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:50,078 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 150 transitions. [2024-11-19 01:16:50,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:16:50,078 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 150 transitions. [2024-11-19 01:16:50,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-19 01:16:50,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:50,080 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:50,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 01:16:50,080 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:50,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:50,081 INFO L85 PathProgramCache]: Analyzing trace with hash -388184328, now seen corresponding path program 1 times [2024-11-19 01:16:50,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:50,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99055227] [2024-11-19 01:16:50,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:50,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:50,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:52,085 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:16:52,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:52,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99055227] [2024-11-19 01:16:52,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99055227] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:16:52,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:16:52,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:16:52,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020003933] [2024-11-19 01:16:52,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:16:52,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:16:52,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:52,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:16:52,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:16:52,090 INFO L87 Difference]: Start difference. First operand 105 states and 150 transitions. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 01:16:52,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:52,703 INFO L93 Difference]: Finished difference Result 268 states and 385 transitions. [2024-11-19 01:16:52,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:16:52,704 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 127 [2024-11-19 01:16:52,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:52,705 INFO L225 Difference]: With dead ends: 268 [2024-11-19 01:16:52,706 INFO L226 Difference]: Without dead ends: 166 [2024-11-19 01:16:52,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:16:52,707 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 442 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 442 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:52,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [442 Valid, 295 Invalid, 446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 01:16:52,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-19 01:16:52,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 132. [2024-11-19 01:16:52,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 115 states have (on average 1.4086956521739131) internal successors, (162), 115 states have internal predecessors, (162), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 01:16:52,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 192 transitions. [2024-11-19 01:16:52,726 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 192 transitions. Word has length 127 [2024-11-19 01:16:52,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:52,727 INFO L471 AbstractCegarLoop]: Abstraction has 132 states and 192 transitions. [2024-11-19 01:16:52,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 2 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2024-11-19 01:16:52,727 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 192 transitions. [2024-11-19 01:16:52,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-19 01:16:52,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:52,729 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:52,729 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 01:16:52,729 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:52,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:52,730 INFO L85 PathProgramCache]: Analyzing trace with hash 891679350, now seen corresponding path program 1 times [2024-11-19 01:16:52,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:52,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589516598] [2024-11-19 01:16:52,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:52,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:52,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:53,674 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 18 proven. 24 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-19 01:16:53,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:53,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589516598] [2024-11-19 01:16:53,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589516598] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:16:53,675 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1524017456] [2024-11-19 01:16:53,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:53,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:16:53,675 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:16:53,680 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) [2024-11-19 01:16:53,682 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 01:16:53,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:53,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-19 01:16:53,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:16:54,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 01:16:54,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-19 01:16:55,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-19 01:16:55,299 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-19 01:16:55,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2024-11-19 01:16:55,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:16:55,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:16:55,701 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2024-11-19 01:16:55,701 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 18 [2024-11-19 01:16:55,708 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-19 01:16:55,709 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2024-11-19 01:16:55,714 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 168 proven. 122 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-19 01:16:55,715 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:16:55,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1524017456] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:16:55,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 01:16:55,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2024-11-19 01:16:55,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316505360] [2024-11-19 01:16:55,787 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 01:16:55,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 01:16:55,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:16:55,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 01:16:55,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2024-11-19 01:16:55,790 INFO L87 Difference]: Start difference. First operand 132 states and 192 transitions. Second operand has 15 states, 13 states have (on average 7.230769230769231) internal successors, (94), 15 states have internal predecessors, (94), 8 states have call successors, (30), 4 states have call predecessors, (30), 6 states have return successors, (30), 6 states have call predecessors, (30), 8 states have call successors, (30) [2024-11-19 01:16:56,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:16:56,551 INFO L93 Difference]: Finished difference Result 256 states and 366 transitions. [2024-11-19 01:16:56,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-19 01:16:56,556 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.230769230769231) internal successors, (94), 15 states have internal predecessors, (94), 8 states have call successors, (30), 4 states have call predecessors, (30), 6 states have return successors, (30), 6 states have call predecessors, (30), 8 states have call successors, (30) Word has length 127 [2024-11-19 01:16:56,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:16:56,557 INFO L225 Difference]: With dead ends: 256 [2024-11-19 01:16:56,558 INFO L226 Difference]: Without dead ends: 127 [2024-11-19 01:16:56,558 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2024-11-19 01:16:56,559 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 226 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 670 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 670 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 01:16:56,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 550 Invalid, 726 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 670 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 01:16:56,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-19 01:16:56,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 122. [2024-11-19 01:16:56,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 98 states have (on average 1.316326530612245) internal successors, (129), 99 states have internal predecessors, (129), 21 states have call successors, (21), 2 states have call predecessors, (21), 2 states have return successors, (21), 20 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-19 01:16:56,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 171 transitions. [2024-11-19 01:16:56,573 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 171 transitions. Word has length 127 [2024-11-19 01:16:56,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:16:56,574 INFO L471 AbstractCegarLoop]: Abstraction has 122 states and 171 transitions. [2024-11-19 01:16:56,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.230769230769231) internal successors, (94), 15 states have internal predecessors, (94), 8 states have call successors, (30), 4 states have call predecessors, (30), 6 states have return successors, (30), 6 states have call predecessors, (30), 8 states have call successors, (30) [2024-11-19 01:16:56,574 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 171 transitions. [2024-11-19 01:16:56,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-19 01:16:56,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:16:56,575 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:16:56,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 01:16:56,776 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,SelfDestructingSolverStorable5 [2024-11-19 01:16:56,777 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:16:56,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:16:56,777 INFO L85 PathProgramCache]: Analyzing trace with hash -897657418, now seen corresponding path program 1 times [2024-11-19 01:16:56,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:16:56,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [520358120] [2024-11-19 01:16:56,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:56,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:16:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:58,444 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-19 01:16:58,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:16:58,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [520358120] [2024-11-19 01:16:58,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [520358120] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:16:58,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1338497581] [2024-11-19 01:16:58,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:16:58,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:16:58,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:16:58,450 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) [2024-11-19 01:16:58,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 01:16:58,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:16:58,651 INFO L255 TraceCheckSpWp]: Trace formula consists of 558 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-19 01:16:58,661 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:16:58,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 01:16:59,561 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-19 01:17:00,065 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-19 01:17:00,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-19 01:17:01,295 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2024-11-19 01:17:02,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2024-11-19 01:17:02,814 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2024-11-19 01:17:03,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2024-11-19 01:17:03,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:03,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:03,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:03,863 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2024-11-19 01:17:04,123 INFO L349 Elim1Store]: treesize reduction 66, result has 1.5 percent of original size [2024-11-19 01:17:04,124 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 160 treesize of output 112 [2024-11-19 01:17:04,134 WARN L214 Elim1Store]: Array PQE input equivalent to false [2024-11-19 01:17:04,140 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 152 proven. 140 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2024-11-19 01:17:04,140 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 01:17:04,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1338497581] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:17:04,335 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 01:17:04,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 24 [2024-11-19 01:17:04,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278320387] [2024-11-19 01:17:04,336 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 01:17:04,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-19 01:17:04,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:17:04,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-19 01:17:04,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=659, Unknown=0, NotChecked=0, Total=756 [2024-11-19 01:17:04,338 INFO L87 Difference]: Start difference. First operand 122 states and 171 transitions. Second operand has 24 states, 21 states have (on average 4.619047619047619) internal successors, (97), 24 states have internal predecessors, (97), 10 states have call successors, (30), 5 states have call predecessors, (30), 6 states have return successors, (30), 7 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-19 01:17:06,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:17:06,659 INFO L93 Difference]: Finished difference Result 250 states and 338 transitions. [2024-11-19 01:17:06,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-19 01:17:06,660 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 4.619047619047619) internal successors, (97), 24 states have internal predecessors, (97), 10 states have call successors, (30), 5 states have call predecessors, (30), 6 states have return successors, (30), 7 states have call predecessors, (30), 10 states have call successors, (30) Word has length 127 [2024-11-19 01:17:06,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:17:06,662 INFO L225 Difference]: With dead ends: 250 [2024-11-19 01:17:06,663 INFO L226 Difference]: Without dead ends: 144 [2024-11-19 01:17:06,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=246, Invalid=1236, Unknown=0, NotChecked=0, Total=1482 [2024-11-19 01:17:06,664 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 130 mSDsluCounter, 905 mSDsCounter, 0 mSdLazyCounter, 1380 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 1411 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 1380 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-19 01:17:06,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 986 Invalid, 1411 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 1380 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-19 01:17:06,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-19 01:17:06,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 117. [2024-11-19 01:17:06,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 97 states have (on average 1.309278350515464) internal successors, (127), 97 states have internal predecessors, (127), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 01:17:06,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 157 transitions. [2024-11-19 01:17:06,687 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 157 transitions. Word has length 127 [2024-11-19 01:17:06,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:17:06,688 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 157 transitions. [2024-11-19 01:17:06,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 4.619047619047619) internal successors, (97), 24 states have internal predecessors, (97), 10 states have call successors, (30), 5 states have call predecessors, (30), 6 states have return successors, (30), 7 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-19 01:17:06,688 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 157 transitions. [2024-11-19 01:17:06,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-19 01:17:06,689 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:17:06,689 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:17:06,705 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 01:17:06,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:17:06,890 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:17:06,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:17:06,891 INFO L85 PathProgramCache]: Analyzing trace with hash -835617804, now seen corresponding path program 1 times [2024-11-19 01:17:06,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:17:06,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425422498] [2024-11-19 01:17:06,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:17:06,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:17:07,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:17:10,369 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:17:10,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:17:10,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425422498] [2024-11-19 01:17:10,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425422498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:17:10,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:17:10,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-19 01:17:10,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304920539] [2024-11-19 01:17:10,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:17:10,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 01:17:10,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:17:10,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 01:17:10,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2024-11-19 01:17:10,372 INFO L87 Difference]: Start difference. First operand 117 states and 157 transitions. Second operand has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 15 states have internal predecessors, (55), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-19 01:17:12,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:17:12,181 INFO L93 Difference]: Finished difference Result 232 states and 313 transitions. [2024-11-19 01:17:12,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 01:17:12,184 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 15 states have internal predecessors, (55), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) Word has length 127 [2024-11-19 01:17:12,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:17:12,185 INFO L225 Difference]: With dead ends: 232 [2024-11-19 01:17:12,185 INFO L226 Difference]: Without dead ends: 118 [2024-11-19 01:17:12,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2024-11-19 01:17:12,186 INFO L432 NwaCegarLoop]: 78 mSDtfsCounter, 454 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 01:17:12,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 455 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 01:17:12,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2024-11-19 01:17:12,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2024-11-19 01:17:12,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 98 states have (on average 1.3061224489795917) internal successors, (128), 98 states have internal predecessors, (128), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 01:17:12,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 158 transitions. [2024-11-19 01:17:12,209 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 158 transitions. Word has length 127 [2024-11-19 01:17:12,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:17:12,210 INFO L471 AbstractCegarLoop]: Abstraction has 118 states and 158 transitions. [2024-11-19 01:17:12,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.9285714285714284) internal successors, (55), 15 states have internal predecessors, (55), 4 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 3 states have call predecessors, (15), 4 states have call successors, (15) [2024-11-19 01:17:12,210 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 158 transitions. [2024-11-19 01:17:12,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-19 01:17:12,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:17:12,212 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:17:12,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 01:17:12,212 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:17:12,213 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:17:12,213 INFO L85 PathProgramCache]: Analyzing trace with hash -1846735054, now seen corresponding path program 1 times [2024-11-19 01:17:12,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:17:12,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408829933] [2024-11-19 01:17:12,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:17:12,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:17:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:17:13,389 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:17:13,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:17:13,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408829933] [2024-11-19 01:17:13,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408829933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:17:13,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:17:13,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:17:13,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249571015] [2024-11-19 01:17:13,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:17:13,390 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:17:13,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:17:13,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:17:13,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:17:13,391 INFO L87 Difference]: Start difference. First operand 118 states and 158 transitions. Second operand has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:17:13,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:17:13,760 INFO L93 Difference]: Finished difference Result 238 states and 319 transitions. [2024-11-19 01:17:13,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:17:13,760 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 127 [2024-11-19 01:17:13,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:17:13,761 INFO L225 Difference]: With dead ends: 238 [2024-11-19 01:17:13,761 INFO L226 Difference]: Without dead ends: 123 [2024-11-19 01:17:13,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:17:13,762 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 256 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 284 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:17:13,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 436 Invalid, 284 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:17:13,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-19 01:17:13,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2024-11-19 01:17:13,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 101 states have (on average 1.297029702970297) internal successors, (131), 101 states have internal predecessors, (131), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 01:17:13,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 161 transitions. [2024-11-19 01:17:13,782 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 161 transitions. Word has length 127 [2024-11-19 01:17:13,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:17:13,783 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 161 transitions. [2024-11-19 01:17:13,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.111111111111111) internal successors, (55), 9 states have internal predecessors, (55), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:17:13,783 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 161 transitions. [2024-11-19 01:17:13,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-19 01:17:13,784 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:17:13,784 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:17:13,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 01:17:13,784 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:17:13,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:17:13,785 INFO L85 PathProgramCache]: Analyzing trace with hash 444245874, now seen corresponding path program 1 times [2024-11-19 01:17:13,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:17:13,785 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103318462] [2024-11-19 01:17:13,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:17:13,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:17:13,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:17:14,890 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:17:14,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:17:14,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103318462] [2024-11-19 01:17:14,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103318462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:17:14,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:17:14,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-19 01:17:14,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236341851] [2024-11-19 01:17:14,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:17:14,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 01:17:14,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:17:14,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 01:17:14,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-19 01:17:14,892 INFO L87 Difference]: Start difference. First operand 121 states and 161 transitions. Second operand has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-19 01:17:15,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:17:15,473 INFO L93 Difference]: Finished difference Result 235 states and 313 transitions. [2024-11-19 01:17:15,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 01:17:15,474 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) Word has length 127 [2024-11-19 01:17:15,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:17:15,475 INFO L225 Difference]: With dead ends: 235 [2024-11-19 01:17:15,475 INFO L226 Difference]: Without dead ends: 117 [2024-11-19 01:17:15,475 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2024-11-19 01:17:15,476 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 331 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 01:17:15,476 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 286 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 01:17:15,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-19 01:17:15,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 115. [2024-11-19 01:17:15,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 95 states have (on average 1.2842105263157895) internal successors, (122), 95 states have internal predecessors, (122), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 01:17:15,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 152 transitions. [2024-11-19 01:17:15,494 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 152 transitions. Word has length 127 [2024-11-19 01:17:15,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:17:15,495 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 152 transitions. [2024-11-19 01:17:15,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.875) internal successors, (55), 9 states have internal predecessors, (55), 3 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 2 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-19 01:17:15,495 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 152 transitions. [2024-11-19 01:17:15,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-19 01:17:15,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:17:15,496 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:17:15,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 01:17:15,496 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:17:15,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:17:15,497 INFO L85 PathProgramCache]: Analyzing trace with hash -1582756759, now seen corresponding path program 1 times [2024-11-19 01:17:15,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:17:15,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302812787] [2024-11-19 01:17:15,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:17:15,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:17:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:17:16,040 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-19 01:17:16,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:17:16,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302812787] [2024-11-19 01:17:16,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302812787] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 01:17:16,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 01:17:16,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-19 01:17:16,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926442760] [2024-11-19 01:17:16,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 01:17:16,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 01:17:16,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 01:17:16,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 01:17:16,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 01:17:16,043 INFO L87 Difference]: Start difference. First operand 115 states and 152 transitions. Second operand has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:17:16,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 01:17:16,461 INFO L93 Difference]: Finished difference Result 231 states and 306 transitions. [2024-11-19 01:17:16,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 01:17:16,462 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 129 [2024-11-19 01:17:16,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 01:17:16,463 INFO L225 Difference]: With dead ends: 231 [2024-11-19 01:17:16,463 INFO L226 Difference]: Without dead ends: 119 [2024-11-19 01:17:16,464 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-19 01:17:16,464 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 173 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 273 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 01:17:16,464 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 353 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 273 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 01:17:16,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2024-11-19 01:17:16,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 117. [2024-11-19 01:17:16,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 97 states have (on average 1.2783505154639174) internal successors, (124), 97 states have internal predecessors, (124), 15 states have call successors, (15), 4 states have call predecessors, (15), 4 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-19 01:17:16,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 154 transitions. [2024-11-19 01:17:16,508 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 154 transitions. Word has length 129 [2024-11-19 01:17:16,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 01:17:16,508 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 154 transitions. [2024-11-19 01:17:16,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.125) internal successors, (57), 8 states have internal predecessors, (57), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2024-11-19 01:17:16,509 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 154 transitions. [2024-11-19 01:17:16,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-19 01:17:16,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 01:17:16,509 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 01:17:16,509 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 01:17:16,510 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 01:17:16,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 01:17:16,511 INFO L85 PathProgramCache]: Analyzing trace with hash -1584603801, now seen corresponding path program 1 times [2024-11-19 01:17:16,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 01:17:16,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397405273] [2024-11-19 01:17:16,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:17:16,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 01:17:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:17:19,735 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 21 proven. 21 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2024-11-19 01:17:19,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 01:17:19,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397405273] [2024-11-19 01:17:19,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397405273] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 01:17:19,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1762715715] [2024-11-19 01:17:19,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 01:17:19,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 01:17:19,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 01:17:19,739 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) [2024-11-19 01:17:19,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 01:17:20,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 01:17:20,129 INFO L255 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 97 conjuncts are in the unsatisfiable core [2024-11-19 01:17:20,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 01:17:22,049 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-19 01:17:22,852 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2024-11-19 01:17:23,338 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2024-11-19 01:17:23,877 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2024-11-19 01:17:24,278 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 16 [2024-11-19 01:17:24,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:24,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:24,812 INFO L349 Elim1Store]: treesize reduction 21, result has 25.0 percent of original size [2024-11-19 01:17:24,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 56 [2024-11-19 01:17:25,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,036 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,040 INFO L349 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2024-11-19 01:17:25,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 5 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 36 [2024-11-19 01:17:25,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,169 INFO L349 Elim1Store]: treesize reduction 40, result has 27.3 percent of original size [2024-11-19 01:17:25,170 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 54 treesize of output 43 [2024-11-19 01:17:25,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,327 INFO L349 Elim1Store]: treesize reduction 97, result has 6.7 percent of original size [2024-11-19 01:17:25,328 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 65 treesize of output 60 [2024-11-19 01:17:25,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:25,576 INFO L349 Elim1Store]: treesize reduction 105, result has 12.5 percent of original size [2024-11-19 01:17:25,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 12 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 76 treesize of output 71 [2024-11-19 01:17:26,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:26,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:26,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-19 01:17:26,576 INFO L349 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2024-11-19 01:17:26,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 155 treesize of output 75 [2024-11-19 01:17:26,704 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 181 proven. 149 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-19 01:17:26,704 INFO L311 TraceCheckSpWp]: Computing backward predicates...