/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/array-fpi/sina3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 04:08:11,657 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 04:08:11,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 04:08:11,701 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-10 04:08:11,702 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-10 04:08:11,702 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-10 04:08:11,703 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-10 04:08:11,704 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-10 04:08:11,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-10 04:08:11,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-10 04:08:11,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-10 04:08:11,707 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-10 04:08:11,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-10 04:08:11,708 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-10 04:08:11,708 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-10 04:08:11,709 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-10 04:08:11,710 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-10 04:08:11,710 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-10 04:08:11,718 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-10 04:08:11,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-10 04:08:11,720 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-10 04:08:11,721 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-10 04:08:11,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-10 04:08:11,722 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-10 04:08:11,724 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-10 04:08:11,726 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-10 04:08:11,726 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-10 04:08:11,726 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-10 04:08:11,727 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-10 04:08:11,727 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-10 04:08:11,727 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-10 04:08:11,728 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-10 04:08:11,728 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-10 04:08:11,728 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 04:08:11,728 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 04:08:11,729 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 04:08:11,732 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 04:08:11,746 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 04:08:11,746 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 04:08:11,746 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 04:08:11,746 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 04:08:11,747 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 04:08:11,747 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 04:08:11,747 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 04:08:11,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 04:08:11,748 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 04:08:11,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 04:08:11,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 04:08:11,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 04:08:11,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 04:08:11,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 04:08:11,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 04:08:11,748 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 04:08:11,748 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 04:08:11,748 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 04:08:11,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 04:08:11,748 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 04:08:11,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 04:08:11,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 04:08:11,749 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 04:08:11,749 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 04:08:11,749 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 04:08:11,749 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 04:08:11,749 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 04:08:11,749 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 04:08:11,749 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 04:08:11,749 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 04:08:11,749 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 04:08:11,750 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 04:08:11,750 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 04:08:11,750 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 04:08:11,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 04:08:11,947 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 04:08:11,948 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 04:08:11,949 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 04:08:11,951 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 04:08:11,952 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/sina3.c [2022-01-10 04:08:11,996 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdea3c1c3/ca8d029311584033be644f90bf21b609/FLAG0b0624103 [2022-01-10 04:08:12,349 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 04:08:12,350 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/sina3.c [2022-01-10 04:08:12,354 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdea3c1c3/ca8d029311584033be644f90bf21b609/FLAG0b0624103 [2022-01-10 04:08:12,771 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fdea3c1c3/ca8d029311584033be644f90bf21b609 [2022-01-10 04:08:12,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 04:08:12,774 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 04:08:12,776 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 04:08:12,776 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 04:08:12,778 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 04:08:12,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 04:08:12" (1/1) ... [2022-01-10 04:08:12,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11d1cfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:08:12, skipping insertion in model container [2022-01-10 04:08:12,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 04:08:12" (1/1) ... [2022-01-10 04:08:12,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 04:08:12,797 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 04:08:12,909 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/sina3.c[588,601] [2022-01-10 04:08:12,926 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 04:08:12,934 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 04:08:12,942 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/sina3.c[588,601] [2022-01-10 04:08:12,948 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 04:08:12,957 INFO L208 MainTranslator]: Completed translation [2022-01-10 04:08:12,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:08:12 WrapperNode [2022-01-10 04:08:12,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 04:08:12,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 04:08:12,958 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 04:08:12,958 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 04:08:12,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:08:12" (1/1) ... [2022-01-10 04:08:12,970 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:08:12" (1/1) ... [2022-01-10 04:08:12,982 INFO L137 Inliner]: procedures = 21, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 95 [2022-01-10 04:08:12,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 04:08:12,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 04:08:12,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 04:08:12,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 04:08:12,989 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:08:12" (1/1) ... [2022-01-10 04:08:12,989 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:08:12" (1/1) ... [2022-01-10 04:08:12,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:08:12" (1/1) ... [2022-01-10 04:08:12,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:08:12" (1/1) ... [2022-01-10 04:08:13,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:08:12" (1/1) ... [2022-01-10 04:08:13,017 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:08:12" (1/1) ... [2022-01-10 04:08:13,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:08:12" (1/1) ... [2022-01-10 04:08:13,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 04:08:13,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 04:08:13,020 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 04:08:13,020 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 04:08:13,025 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:08:12" (1/1) ... [2022-01-10 04:08:13,036 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 04:08:13,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 04:08:13,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-10 04:08:13,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-10 04:08:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 04:08:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 04:08:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-10 04:08:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-01-10 04:08:13,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 04:08:13,085 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-01-10 04:08:13,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 04:08:13,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 04:08:13,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-01-10 04:08:13,085 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-10 04:08:13,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-01-10 04:08:13,142 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 04:08:13,143 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 04:08:13,330 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 04:08:13,335 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 04:08:13,335 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-01-10 04:08:13,336 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 04:08:13 BoogieIcfgContainer [2022-01-10 04:08:13,336 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 04:08:13,337 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 04:08:13,337 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 04:08:13,341 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 04:08:13,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 04:08:12" (1/3) ... [2022-01-10 04:08:13,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39fab138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 04:08:13, skipping insertion in model container [2022-01-10 04:08:13,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:08:12" (2/3) ... [2022-01-10 04:08:13,342 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39fab138 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 04:08:13, skipping insertion in model container [2022-01-10 04:08:13,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 04:08:13" (3/3) ... [2022-01-10 04:08:13,343 INFO L111 eAbstractionObserver]: Analyzing ICFG sina3.c [2022-01-10 04:08:13,351 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 04:08:13,351 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 04:08:13,397 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 04:08:13,401 INFO L339 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, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-10 04:08:13,402 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 04:08:13,425 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 04:08:13,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 04:08:13,429 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:08:13,430 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:08:13,430 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:08:13,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:08:13,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1389277550, now seen corresponding path program 1 times [2022-01-10 04:08:13,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:08:13,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [133724397] [2022-01-10 04:08:13,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:08:13,449 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:08:13,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:08:13,451 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:08:13,453 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 04:08:13,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:08:13,554 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 04:08:13,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:08:13,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:08:13,611 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:08:13,612 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:08:13,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [133724397] [2022-01-10 04:08:13,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [133724397] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:08:13,612 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:08:13,612 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 04:08:13,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328882064] [2022-01-10 04:08:13,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:08:13,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 04:08:13,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:08:13,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 04:08:13,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 04:08:13,645 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 04:08:13,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:08:13,657 INFO L93 Difference]: Finished difference Result 50 states and 72 transitions. [2022-01-10 04:08:13,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 04:08:13,659 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-01-10 04:08:13,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:08:13,664 INFO L225 Difference]: With dead ends: 50 [2022-01-10 04:08:13,665 INFO L226 Difference]: Without dead ends: 23 [2022-01-10 04:08:13,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 04:08:13,670 INFO L933 BasicCegarLoop]: 32 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, 32 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 [2022-01-10 04:08:13,670 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 04:08:13,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-01-10 04:08:13,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-01-10 04:08:13,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 04:08:13,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-01-10 04:08:13,695 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 16 [2022-01-10 04:08:13,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:08:13,695 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-01-10 04:08:13,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 04:08:13,696 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-01-10 04:08:13,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 04:08:13,697 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:08:13,697 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:08:13,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-01-10 04:08:13,911 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:08:13,912 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:08:13,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:08:13,913 INFO L85 PathProgramCache]: Analyzing trace with hash 796930410, now seen corresponding path program 1 times [2022-01-10 04:08:13,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:08:13,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [778389185] [2022-01-10 04:08:13,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:08:13,914 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:08:13,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:08:13,918 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:08:13,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 04:08:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:08:14,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-10 04:08:14,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:08:14,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:08:14,240 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:08:14,240 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:08:14,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [778389185] [2022-01-10 04:08:14,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [778389185] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:08:14,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:08:14,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 04:08:14,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349466656] [2022-01-10 04:08:14,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:08:14,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 04:08:14,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:08:14,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 04:08:14,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 04:08:14,244 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 04:08:14,416 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:08:14,417 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2022-01-10 04:08:14,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-10 04:08:14,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-01-10 04:08:14,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:08:14,418 INFO L225 Difference]: With dead ends: 53 [2022-01-10 04:08:14,418 INFO L226 Difference]: Without dead ends: 37 [2022-01-10 04:08:14,419 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 04:08:14,420 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 74 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-10 04:08:14,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [74 Valid, 15 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-10 04:08:14,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-01-10 04:08:14,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2022-01-10 04:08:14,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 04:08:14,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-01-10 04:08:14,424 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2022-01-10 04:08:14,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:08:14,425 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-01-10 04:08:14,425 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 04:08:14,425 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-01-10 04:08:14,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-10 04:08:14,425 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:08:14,425 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:08:14,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-01-10 04:08:14,632 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:08:14,633 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:08:14,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:08:14,633 INFO L85 PathProgramCache]: Analyzing trace with hash 495241442, now seen corresponding path program 1 times [2022-01-10 04:08:14,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:08:14,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1236292620] [2022-01-10 04:08:14,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:08:14,634 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:08:14,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:08:14,635 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:08:14,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-01-10 04:08:14,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:08:14,792 WARN L261 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 46 conjunts are in the unsatisfiable core [2022-01-10 04:08:14,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:08:14,932 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-01-10 04:08:14,933 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 25 treesize of output 21 [2022-01-10 04:08:14,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:14,972 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:14,975 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-01-10 04:08:15,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:15,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:15,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:15,153 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 50 [2022-01-10 04:08:15,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:15,787 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:15,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:15,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:15,790 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:15,791 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:15,807 INFO L353 Elim1Store]: treesize reduction 29, result has 27.5 percent of original size [2022-01-10 04:08:15,808 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 58 treesize of output 70 [2022-01-10 04:08:16,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:16,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:16,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:16,358 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:16,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:16,359 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:16,417 INFO L353 Elim1Store]: treesize reduction 101, result has 31.3 percent of original size [2022-01-10 04:08:16,418 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 142 treesize of output 91 [2022-01-10 04:08:17,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:17,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:17,034 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 151 treesize of output 91 [2022-01-10 04:08:17,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:17,594 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:17,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:17,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:17,597 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:17,597 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:17,615 INFO L353 Elim1Store]: treesize reduction 16, result has 36.0 percent of original size [2022-01-10 04:08:17,615 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 153 treesize of output 90 [2022-01-10 04:08:17,658 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:08:17,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 04:08:29,716 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:29,717 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:29,719 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:29,719 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:29,725 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:29,726 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:29,726 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:29,727 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:29,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:29,730 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:29,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:29,732 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:29,733 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:29,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:29,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:29,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:29,795 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 04:08:29,795 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 10 case distinctions, treesize of input 734 treesize of output 307 [2022-01-10 04:08:29,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:29,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:29,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:29,807 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 252 treesize of output 240 [2022-01-10 04:08:29,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:29,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:29,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:29,822 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 230 treesize of output 214 [2022-01-10 04:08:29,829 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:29,831 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:29,831 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 125 treesize of output 113 [2022-01-10 04:08:29,834 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 79 treesize of output 75 [2022-01-10 04:08:30,424 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:08:30,424 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:08:30,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1236292620] [2022-01-10 04:08:30,424 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1236292620] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 04:08:30,425 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 04:08:30,425 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16] total 30 [2022-01-10 04:08:30,425 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797010893] [2022-01-10 04:08:30,425 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 04:08:30,425 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-10 04:08:30,425 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:08:30,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-10 04:08:30,427 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=723, Unknown=1, NotChecked=0, Total=870 [2022-01-10 04:08:30,427 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 30 states, 30 states have (on average 1.5) internal successors, (45), 30 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 04:08:36,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:08:36,016 INFO L93 Difference]: Finished difference Result 63 states and 75 transitions. [2022-01-10 04:08:36,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-01-10 04:08:36,016 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 1.5) internal successors, (45), 30 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-01-10 04:08:36,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:08:36,018 INFO L225 Difference]: With dead ends: 63 [2022-01-10 04:08:36,018 INFO L226 Difference]: Without dead ends: 61 [2022-01-10 04:08:36,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 17.2s TimeCoverageRelationStatistics Valid=161, Invalid=894, Unknown=1, NotChecked=0, Total=1056 [2022-01-10 04:08:36,019 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 42 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 108 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2022-01-10 04:08:36,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 116 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 108 Unchecked, 1.5s Time] [2022-01-10 04:08:36,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-01-10 04:08:36,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 46. [2022-01-10 04:08:36,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.2222222222222223) internal successors, (55), 45 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 04:08:36,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 55 transitions. [2022-01-10 04:08:36,027 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 55 transitions. Word has length 24 [2022-01-10 04:08:36,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:08:36,027 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 55 transitions. [2022-01-10 04:08:36,027 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 1.5) internal successors, (45), 30 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 04:08:36,027 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 55 transitions. [2022-01-10 04:08:36,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-10 04:08:36,028 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:08:36,028 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:08:36,036 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-01-10 04:08:36,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:08:36,229 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:08:36,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:08:36,229 INFO L85 PathProgramCache]: Analyzing trace with hash 831040416, now seen corresponding path program 2 times [2022-01-10 04:08:36,230 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:08:36,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [611141926] [2022-01-10 04:08:36,230 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 04:08:36,230 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:08:36,230 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:08:36,231 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:08:36,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-01-10 04:08:36,312 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-10 04:08:36,313 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 04:08:36,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-10 04:08:36,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:08:36,502 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 04:08:36,502 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 04:08:36,624 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 04:08:36,625 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:08:36,625 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [611141926] [2022-01-10 04:08:36,625 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [611141926] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 04:08:36,625 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 04:08:36,625 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 14 [2022-01-10 04:08:36,625 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697119803] [2022-01-10 04:08:36,625 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 04:08:36,625 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-10 04:08:36,625 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:08:36,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-10 04:08:36,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2022-01-10 04:08:36,626 INFO L87 Difference]: Start difference. First operand 46 states and 55 transitions. Second operand has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 04:08:37,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:08:37,296 INFO L93 Difference]: Finished difference Result 112 states and 131 transitions. [2022-01-10 04:08:37,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 04:08:37,296 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-10 04:08:37,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:08:37,298 INFO L225 Difference]: With dead ends: 112 [2022-01-10 04:08:37,298 INFO L226 Difference]: Without dead ends: 64 [2022-01-10 04:08:37,298 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2022-01-10 04:08:37,299 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 142 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 308 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 04:08:37,299 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 71 Invalid, 308 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 04:08:37,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-01-10 04:08:37,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 46. [2022-01-10 04:08:37,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.1777777777777778) internal successors, (53), 45 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 04:08:37,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2022-01-10 04:08:37,304 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 26 [2022-01-10 04:08:37,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:08:37,304 INFO L470 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2022-01-10 04:08:37,304 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.142857142857143) internal successors, (44), 14 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 04:08:37,304 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2022-01-10 04:08:37,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-10 04:08:37,305 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:08:37,305 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:08:37,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-01-10 04:08:37,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:08:37,507 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:08:37,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:08:37,508 INFO L85 PathProgramCache]: Analyzing trace with hash -587916192, now seen corresponding path program 3 times [2022-01-10 04:08:37,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:08:37,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1448352659] [2022-01-10 04:08:37,509 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-10 04:08:37,509 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:08:37,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:08:37,510 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:08:37,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-01-10 04:08:37,607 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-01-10 04:08:37,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 04:08:37,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-10 04:08:37,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:08:37,794 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 04:08:37,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 04:08:37,996 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-10 04:08:37,996 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:08:37,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1448352659] [2022-01-10 04:08:37,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1448352659] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 04:08:37,996 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 04:08:37,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 18 [2022-01-10 04:08:37,996 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138735594] [2022-01-10 04:08:37,996 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 04:08:37,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-10 04:08:37,997 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:08:37,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-10 04:08:37,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2022-01-10 04:08:37,997 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 18 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 04:08:38,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:08:38,842 INFO L93 Difference]: Finished difference Result 129 states and 151 transitions. [2022-01-10 04:08:38,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 04:08:38,843 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 18 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2022-01-10 04:08:38,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:08:38,843 INFO L225 Difference]: With dead ends: 129 [2022-01-10 04:08:38,843 INFO L226 Difference]: Without dead ends: 94 [2022-01-10 04:08:38,844 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=242, Invalid=628, Unknown=0, NotChecked=0, Total=870 [2022-01-10 04:08:38,845 INFO L933 BasicCegarLoop]: 19 mSDtfsCounter, 390 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-10 04:08:38,845 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [390 Valid, 75 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-10 04:08:38,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2022-01-10 04:08:38,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 68. [2022-01-10 04:08:38,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.1492537313432836) internal successors, (77), 67 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 04:08:38,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 77 transitions. [2022-01-10 04:08:38,853 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 77 transitions. Word has length 26 [2022-01-10 04:08:38,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:08:38,853 INFO L470 AbstractCegarLoop]: Abstraction has 68 states and 77 transitions. [2022-01-10 04:08:38,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.111111111111111) internal successors, (38), 18 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-10 04:08:38,853 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 77 transitions. [2022-01-10 04:08:38,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-01-10 04:08:38,853 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:08:38,854 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:08:38,861 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Ended with exit code 0 [2022-01-10 04:08:39,054 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:08:39,054 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:08:39,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:08:39,055 INFO L85 PathProgramCache]: Analyzing trace with hash -826292134, now seen corresponding path program 4 times [2022-01-10 04:08:39,055 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:08:39,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1556317660] [2022-01-10 04:08:39,055 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-10 04:08:39,055 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:08:39,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:08:39,056 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:08:39,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-01-10 04:08:39,324 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-10 04:08:39,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 04:08:39,334 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 59 conjunts are in the unsatisfiable core [2022-01-10 04:08:39,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:08:39,429 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:39,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:39,430 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2022-01-10 04:08:39,445 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-01-10 04:08:39,448 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 39 treesize of output 35 [2022-01-10 04:08:39,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:39,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:39,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:39,616 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 5 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 50 [2022-01-10 04:08:39,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:39,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:39,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:39,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:39,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:39,910 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:39,911 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:39,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:39,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:39,913 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:39,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:39,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:39,918 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:39,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:39,919 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:39,924 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-10 04:08:39,924 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 9 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 69 treesize of output 81 [2022-01-10 04:08:40,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:40,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:40,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:40,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:40,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:40,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:40,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:40,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:40,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:40,646 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:40,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:40,648 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:40,690 INFO L353 Elim1Store]: treesize reduction 62, result has 42.1 percent of original size [2022-01-10 04:08:40,691 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 11 case distinctions, treesize of input 85 treesize of output 127 [2022-01-10 04:08:41,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:41,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:41,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:41,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:41,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:41,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:41,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:41,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:41,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:41,344 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:41,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:41,345 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:41,398 INFO L353 Elim1Store]: treesize reduction 154, result has 21.4 percent of original size [2022-01-10 04:08:41,398 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 14 case distinctions, treesize of input 95 treesize of output 125 [2022-01-10 04:08:41,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:41,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:41,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:41,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:41,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:41,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:41,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:41,920 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:41,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:41,922 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:41,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:41,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:41,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:41,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:41,925 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:41,926 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:42,000 INFO L353 Elim1Store]: treesize reduction 200, result has 21.9 percent of original size [2022-01-10 04:08:42,000 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 9 select indices, 9 select index equivalence classes, 7 disjoint index pairs (out of 36 index pairs), introduced 7 new quantified variables, introduced 20 case distinctions, treesize of input 167 treesize of output 132 [2022-01-10 04:08:42,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:42,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:42,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:42,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:42,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:42,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:42,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:42,768 INFO L353 Elim1Store]: treesize reduction 133, result has 15.8 percent of original size [2022-01-10 04:08:42,768 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 9 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 3 case distinctions, treesize of input 199 treesize of output 141 [2022-01-10 04:08:43,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:43,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:43,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:43,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:43,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:43,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:43,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:43,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:43,531 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:43,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:43,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:43,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:43,545 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:43,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:43,549 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:43,549 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:43,581 INFO L353 Elim1Store]: treesize reduction 78, result has 16.1 percent of original size [2022-01-10 04:08:43,581 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 8 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 11 case distinctions, treesize of input 228 treesize of output 164 [2022-01-10 04:08:44,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:44,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:44,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:44,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:44,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:44,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:44,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:44,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:44,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:44,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:44,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:44,464 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:44,465 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:44,473 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-10 04:08:44,474 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 11 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 8 case distinctions, treesize of input 300 treesize of output 194 [2022-01-10 04:08:46,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:46,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:08:46,118 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:46,123 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:08:46,137 INFO L353 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-01-10 04:08:46,137 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 245 treesize of output 184 [2022-01-10 04:08:46,206 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:08:46,206 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 04:09:15,334 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~b~0#1.offset| (_ BitVec 64)) (v_ArrVal_179 (_ BitVec 32)) (v_ArrVal_167 (_ BitVec 32)) (v_ArrVal_178 (_ BitVec 32))) (= (let ((.cse7 ((_ sign_extend 32) (_ bv0 32)))) (let ((.cse20 (bvmul (_ bv8 64) .cse7))) (let ((.cse1 (bvadd .cse20 (_ bv4 64) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse2 (bvadd .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse0 (let ((.cse19 (bvmul (_ bv8 64) ((_ sign_extend 32) (_ bv1 32))))) (let ((.cse13 (bvadd .cse19 (_ bv4 64) |c_ULTIMATE.start_main_~a~0#1.offset|))) (store (let ((.cse14 (bvadd .cse19 |c_ULTIMATE.start_main_~a~0#1.offset|))) (store (let ((.cse8 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (bvadd (bvmul ((_ sign_extend 32) |c_ULTIMATE.start_main_~i~0#1|) (_ bv4 64)) |ULTIMATE.start_main_~b~0#1.offset|) (_ bv1 32)) (bvadd |ULTIMATE.start_main_~b~0#1.offset| (bvmul ((_ sign_extend 32) (bvadd (_ bv1 32) |c_ULTIMATE.start_main_~i~0#1|)) (_ bv4 64))) v_ArrVal_167)))) (let ((.cse11 (bvadd |c_ULTIMATE.start_main_~#sum~0#1.offset| (_ bv4 64))) (.cse16 (select .cse8 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse17 (bvadd (let ((.cse18 (select .cse8 |c_ULTIMATE.start_main_~a~0#1.base|))) (concat (select .cse18 .cse1) (select .cse18 .cse2))) (concat (select .cse16 .cse11) (select .cse16 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (let ((.cse15 ((_ extract 63 32) .cse17))) (let ((.cse9 (store (store .cse16 |c_ULTIMATE.start_main_~#sum~0#1.offset| ((_ extract 31 0) .cse17)) .cse11 .cse15))) (let ((.cse10 (bvadd (let ((.cse12 (select (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.base| .cse9) |c_ULTIMATE.start_main_~a~0#1.base|))) (concat (select .cse12 .cse13) (select .cse12 .cse14))) (concat .cse15 (select .cse9 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (let ((.cse5 ((_ extract 63 32) .cse10))) (let ((.cse6 (store (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.offset| ((_ extract 31 0) .cse10)) .cse11 .cse5))) (let ((.cse3 (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.base| .cse6))) (let ((.cse4 (bvadd (concat .cse5 (select .cse6 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) ((_ sign_extend 32) (select (select .cse3 |c_ULTIMATE.start_main_~b~0#1.base|) (bvadd (bvmul .cse7 (_ bv4 64)) |ULTIMATE.start_main_~b~0#1.offset|)))))) (store (store (select .cse3 |c_ULTIMATE.start_main_~a~0#1.base|) .cse2 ((_ extract 31 0) .cse4)) .cse1 ((_ extract 63 32) .cse4)))))))))))) .cse14 v_ArrVal_179)) .cse13 v_ArrVal_178))))) (concat (select .cse0 .cse1) (select .cse0 .cse2)))))) ((_ sign_extend 32) (bvadd c_~N~0 (_ bv1 32))))) is different from false [2022-01-10 04:09:17,565 WARN L838 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_main_~b~0#1.offset| (_ BitVec 64)) (v_ArrVal_179 (_ BitVec 32)) (v_ArrVal_167 (_ BitVec 32)) (v_ArrVal_178 (_ BitVec 32))) (= (let ((.cse20 ((_ sign_extend 32) (_ bv0 32)))) (let ((.cse22 (bvmul (_ bv8 64) .cse20))) (let ((.cse1 (bvadd .cse22 (_ bv4 64) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse2 (bvadd .cse22 |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse0 (let ((.cse19 ((_ sign_extend 32) (_ bv1 32)))) (let ((.cse21 (bvmul (_ bv8 64) .cse19))) (let ((.cse14 (bvadd .cse21 (_ bv4 64) |c_ULTIMATE.start_main_~a~0#1.offset|))) (store (let ((.cse15 (bvadd .cse21 |c_ULTIMATE.start_main_~a~0#1.offset|))) (store (let ((.cse5 (bvadd (bvmul .cse20 (_ bv4 64)) |ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse8 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) .cse5 (_ bv1 32)) (bvadd |ULTIMATE.start_main_~b~0#1.offset| (bvmul .cse19 (_ bv4 64))) v_ArrVal_167)))) (let ((.cse11 (bvadd |c_ULTIMATE.start_main_~#sum~0#1.offset| (_ bv4 64))) (.cse16 (select .cse8 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse17 (bvadd (concat (select .cse16 .cse11) (select .cse16 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (let ((.cse18 (select .cse8 |c_ULTIMATE.start_main_~a~0#1.base|))) (concat (select .cse18 .cse1) (select .cse18 .cse2)))))) (let ((.cse12 ((_ extract 63 32) .cse17))) (let ((.cse9 (store (store .cse16 |c_ULTIMATE.start_main_~#sum~0#1.offset| ((_ extract 31 0) .cse17)) .cse11 .cse12))) (let ((.cse10 (bvadd (concat .cse12 (select .cse9 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (let ((.cse13 (select (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.base| .cse9) |c_ULTIMATE.start_main_~a~0#1.base|))) (concat (select .cse13 .cse14) (select .cse13 .cse15)))))) (let ((.cse6 ((_ extract 63 32) .cse10))) (let ((.cse7 (store (store .cse9 |c_ULTIMATE.start_main_~#sum~0#1.offset| ((_ extract 31 0) .cse10)) .cse11 .cse6))) (let ((.cse3 (store .cse8 |c_ULTIMATE.start_main_~#sum~0#1.base| .cse7))) (let ((.cse4 (bvadd ((_ sign_extend 32) (select (select .cse3 |c_ULTIMATE.start_main_~b~0#1.base|) .cse5)) (concat .cse6 (select .cse7 |c_ULTIMATE.start_main_~#sum~0#1.offset|))))) (store (store (select .cse3 |c_ULTIMATE.start_main_~a~0#1.base|) .cse2 ((_ extract 31 0) .cse4)) .cse1 ((_ extract 63 32) .cse4))))))))))))) .cse15 v_ArrVal_179)) .cse14 v_ArrVal_178)))))) (concat (select .cse0 .cse1) (select .cse0 .cse2)))))) ((_ sign_extend 32) (bvadd c_~N~0 (_ bv1 32))))) is different from false