java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label46_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 06:22:29,371 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 06:22:29,373 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 06:22:29,387 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 06:22:29,388 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 06:22:29,389 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 06:22:29,390 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 06:22:29,392 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 06:22:29,393 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 06:22:29,394 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 06:22:29,395 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 06:22:29,396 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 06:22:29,396 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 06:22:29,397 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 06:22:29,399 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 06:22:29,399 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 06:22:29,400 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 06:22:29,402 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 06:22:29,404 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 06:22:29,406 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 06:22:29,407 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 06:22:29,409 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 06:22:29,411 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 06:22:29,411 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 06:22:29,411 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 06:22:29,412 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 06:22:29,413 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 06:22:29,414 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 06:22:29,417 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 06:22:29,418 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 06:22:29,419 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 06:22:29,419 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-27 06:22:29,425 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-27 06:22:29,443 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 06:22:29,443 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 06:22:29,444 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 06:22:29,444 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 06:22:29,444 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 06:22:29,444 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 06:22:29,445 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-27 06:22:29,445 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 06:22:29,445 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 06:22:29,445 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 06:22:29,445 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 06:22:29,446 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 06:22:29,446 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 06:22:29,446 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 06:22:29,447 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 06:22:29,447 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 06:22:29,447 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 06:22:29,447 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 06:22:29,447 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 06:22:29,448 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 06:22:29,448 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 06:22:29,448 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 06:22:29,448 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 06:22:29,448 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 06:22:29,449 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 06:22:29,449 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 06:22:29,449 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 06:22:29,449 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 06:22:29,449 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 06:22:29,452 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 06:22:29,452 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 06:22:29,452 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 06:22:29,452 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 06:22:29,452 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 06:22:29,453 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 06:22:29,453 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 06:22:29,507 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 06:22:29,520 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 06:22:29,524 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 06:22:29,526 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 06:22:29,526 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 06:22:29,527 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label46_true-unreach-call.c [2018-10-27 06:22:29,594 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9192c5417/e26c2160baaf41898d6159a508d8c801/FLAG5e530d522 [2018-10-27 06:22:30,230 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 06:22:30,233 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label46_true-unreach-call.c [2018-10-27 06:22:30,254 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9192c5417/e26c2160baaf41898d6159a508d8c801/FLAG5e530d522 [2018-10-27 06:22:30,274 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/9192c5417/e26c2160baaf41898d6159a508d8c801 [2018-10-27 06:22:30,288 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 06:22:30,291 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 06:22:30,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 06:22:30,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 06:22:30,300 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 06:22:30,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:22:30" (1/1) ... [2018-10-27 06:22:30,305 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7687bea2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:22:30, skipping insertion in model container [2018-10-27 06:22:30,305 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 06:22:30" (1/1) ... [2018-10-27 06:22:30,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 06:22:30,407 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 06:22:31,129 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:22:31,136 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 06:22:31,485 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 06:22:31,511 INFO L193 MainTranslator]: Completed translation [2018-10-27 06:22:31,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:22:31 WrapperNode [2018-10-27 06:22:31,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 06:22:31,513 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 06:22:31,513 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 06:22:31,513 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 06:22:31,523 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:22:31" (1/1) ... [2018-10-27 06:22:31,577 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:22:31" (1/1) ... [2018-10-27 06:22:31,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 06:22:31,810 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 06:22:31,810 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 06:22:31,810 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 06:22:31,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:22:31" (1/1) ... [2018-10-27 06:22:31,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:22:31" (1/1) ... [2018-10-27 06:22:31,828 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:22:31" (1/1) ... [2018-10-27 06:22:31,828 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:22:31" (1/1) ... [2018-10-27 06:22:31,888 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:22:31" (1/1) ... [2018-10-27 06:22:31,919 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:22:31" (1/1) ... [2018-10-27 06:22:31,943 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:22:31" (1/1) ... [2018-10-27 06:22:31,956 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 06:22:31,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 06:22:31,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 06:22:31,957 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 06:22:31,958 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:22:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 06:22:32,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 06:22:32,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 06:22:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 06:22:32,037 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 06:22:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 06:22:32,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 06:22:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 06:22:32,038 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 06:22:36,962 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 06:22:36,963 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:22:36 BoogieIcfgContainer [2018-10-27 06:22:36,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 06:22:36,967 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 06:22:36,967 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 06:22:36,971 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 06:22:36,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 06:22:30" (1/3) ... [2018-10-27 06:22:36,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@814eb81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:22:36, skipping insertion in model container [2018-10-27 06:22:36,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 06:22:31" (2/3) ... [2018-10-27 06:22:36,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@814eb81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 06:22:36, skipping insertion in model container [2018-10-27 06:22:36,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 06:22:36" (3/3) ... [2018-10-27 06:22:36,976 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label46_true-unreach-call.c [2018-10-27 06:22:36,987 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 06:22:36,999 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 06:22:37,020 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 06:22:37,077 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 06:22:37,077 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 06:22:37,077 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 06:22:37,078 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 06:22:37,078 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 06:22:37,078 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 06:22:37,078 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 06:22:37,078 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 06:22:37,126 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-27 06:22:37,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-10-27 06:22:37,158 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:22:37,159 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:22:37,162 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:22:37,170 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:22:37,170 INFO L82 PathProgramCache]: Analyzing trace with hash -869298807, now seen corresponding path program 1 times [2018-10-27 06:22:37,173 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:22:37,235 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:22:37,235 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:22:37,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:22:37,236 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:22:37,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:22:38,245 WARN L179 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-27 06:22:38,526 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:22:38,528 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:22:38,529 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 06:22:38,529 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 06:22:38,534 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 06:22:38,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 06:22:38,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 06:22:38,550 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-10-27 06:22:42,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:22:42,379 INFO L93 Difference]: Finished difference Result 1074 states and 1924 transitions. [2018-10-27 06:22:42,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 06:22:42,383 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 192 [2018-10-27 06:22:42,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 06:22:42,407 INFO L225 Difference]: With dead ends: 1074 [2018-10-27 06:22:42,407 INFO L226 Difference]: Without dead ends: 756 [2018-10-27 06:22:42,415 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 06:22:42,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 756 states. [2018-10-27 06:22:42,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 756 to 520. [2018-10-27 06:22:42,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 520 states. [2018-10-27 06:22:42,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 919 transitions. [2018-10-27 06:22:42,510 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 919 transitions. Word has length 192 [2018-10-27 06:22:42,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 06:22:42,511 INFO L481 AbstractCegarLoop]: Abstraction has 520 states and 919 transitions. [2018-10-27 06:22:42,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 06:22:42,511 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 919 transitions. [2018-10-27 06:22:42,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2018-10-27 06:22:42,519 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:22:42,520 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:22:42,520 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:22:42,521 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:22:42,521 INFO L82 PathProgramCache]: Analyzing trace with hash -593828404, now seen corresponding path program 1 times [2018-10-27 06:22:42,521 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:22:42,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:22:42,522 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:22:42,522 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:22:42,523 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:22:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:22:42,952 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:22:42,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:22:42,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 06:22:42,953 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 06:22:42,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 06:22:42,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 06:22:42,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 06:22:42,956 INFO L87 Difference]: Start difference. First operand 520 states and 919 transitions. Second operand 6 states. [2018-10-27 06:22:46,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:22:46,432 INFO L93 Difference]: Finished difference Result 1482 states and 2700 transitions. [2018-10-27 06:22:46,433 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 06:22:46,433 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 220 [2018-10-27 06:22:46,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 06:22:46,443 INFO L225 Difference]: With dead ends: 1482 [2018-10-27 06:22:46,443 INFO L226 Difference]: Without dead ends: 968 [2018-10-27 06:22:46,446 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 06:22:46,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 968 states. [2018-10-27 06:22:46,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 968 to 949. [2018-10-27 06:22:46,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 949 states. [2018-10-27 06:22:46,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1579 transitions. [2018-10-27 06:22:46,515 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1579 transitions. Word has length 220 [2018-10-27 06:22:46,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 06:22:46,515 INFO L481 AbstractCegarLoop]: Abstraction has 949 states and 1579 transitions. [2018-10-27 06:22:46,515 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 06:22:46,516 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1579 transitions. [2018-10-27 06:22:46,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2018-10-27 06:22:46,524 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:22:46,525 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:22:46,525 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:22:46,525 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:22:46,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1738232703, now seen corresponding path program 1 times [2018-10-27 06:22:46,525 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:22:46,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:22:46,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:22:46,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:22:46,527 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:22:46,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:22:46,933 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 06:22:46,934 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 06:22:46,934 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 06:22:46,934 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 06:22:46,935 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 06:22:46,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 06:22:46,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 06:22:46,936 INFO L87 Difference]: Start difference. First operand 949 states and 1579 transitions. Second operand 3 states. [2018-10-27 06:22:49,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:22:49,447 INFO L93 Difference]: Finished difference Result 2535 states and 4260 transitions. [2018-10-27 06:22:49,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 06:22:49,449 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 238 [2018-10-27 06:22:49,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 06:22:49,465 INFO L225 Difference]: With dead ends: 2535 [2018-10-27 06:22:49,466 INFO L226 Difference]: Without dead ends: 1592 [2018-10-27 06:22:49,472 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 06:22:49,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1592 states. [2018-10-27 06:22:49,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1592 to 1590. [2018-10-27 06:22:49,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1590 states. [2018-10-27 06:22:49,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1590 states to 1590 states and 2503 transitions. [2018-10-27 06:22:49,561 INFO L78 Accepts]: Start accepts. Automaton has 1590 states and 2503 transitions. Word has length 238 [2018-10-27 06:22:49,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 06:22:49,564 INFO L481 AbstractCegarLoop]: Abstraction has 1590 states and 2503 transitions. [2018-10-27 06:22:49,564 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 06:22:49,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1590 states and 2503 transitions. [2018-10-27 06:22:49,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2018-10-27 06:22:49,574 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:22:49,574 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:22:49,574 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:22:49,575 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:22:49,575 INFO L82 PathProgramCache]: Analyzing trace with hash -2088350806, now seen corresponding path program 1 times [2018-10-27 06:22:49,575 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:22:49,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:22:49,576 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:22:49,576 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:22:49,577 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:22:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:22:49,884 WARN L179 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 06:22:50,084 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 54 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 06:22:50,084 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:22:50,084 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 06:22:50,085 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 255 with the following transitions: [2018-10-27 06:22:50,089 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [68], [71], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [131], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [997], [999], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-27 06:22:50,164 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 06:22:50,164 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 06:22:51,386 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 06:22:51,388 INFO L272 AbstractInterpreter]: Visited 193 different actions 193 times. Never merged. Never widened. Never found a fixpoint. Largest state had 88 variables. [2018-10-27 06:22:51,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:22:51,431 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 06:22:52,579 INFO L227 lantSequenceWeakener]: Weakened 243 states. On average, predicates are now at 73.22% of their original sizes. [2018-10-27 06:22:52,579 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 06:22:53,308 INFO L415 sIntCurrentIteration]: We unified 253 AI predicates to 253 [2018-10-27 06:22:53,309 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 06:22:53,310 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 06:22:53,310 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [6] total 18 [2018-10-27 06:22:53,311 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 06:22:53,311 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-27 06:22:53,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-27 06:22:53,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2018-10-27 06:22:53,312 INFO L87 Difference]: Start difference. First operand 1590 states and 2503 transitions. Second operand 14 states. [2018-10-27 06:23:16,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:23:16,772 INFO L93 Difference]: Finished difference Result 3384 states and 5321 transitions. [2018-10-27 06:23:16,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 06:23:16,772 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 254 [2018-10-27 06:23:16,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 06:23:16,782 INFO L225 Difference]: With dead ends: 3384 [2018-10-27 06:23:16,782 INFO L226 Difference]: Without dead ends: 1800 [2018-10-27 06:23:16,788 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 254 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2018-10-27 06:23:16,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2018-10-27 06:23:16,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1798. [2018-10-27 06:23:16,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1798 states. [2018-10-27 06:23:16,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1798 states to 1798 states and 2720 transitions. [2018-10-27 06:23:16,838 INFO L78 Accepts]: Start accepts. Automaton has 1798 states and 2720 transitions. Word has length 254 [2018-10-27 06:23:16,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 06:23:16,838 INFO L481 AbstractCegarLoop]: Abstraction has 1798 states and 2720 transitions. [2018-10-27 06:23:16,838 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-27 06:23:16,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1798 states and 2720 transitions. [2018-10-27 06:23:16,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2018-10-27 06:23:16,848 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:23:16,848 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:23:16,849 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:23:16,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:23:16,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1932152211, now seen corresponding path program 1 times [2018-10-27 06:23:16,849 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:23:16,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:23:16,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:23:16,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:23:16,851 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:23:16,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:23:17,156 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 06:23:17,369 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 69 proven. 27 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-10-27 06:23:17,369 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:23:17,369 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 06:23:17,370 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 267 with the following transitions: [2018-10-27 06:23:17,370 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [68], [71], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [131], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [997], [999], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-27 06:23:17,382 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 06:23:17,382 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 06:23:18,351 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 06:23:18,351 INFO L272 AbstractInterpreter]: Visited 197 different actions 388 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-10-27 06:23:18,362 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:23:18,362 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 06:23:19,131 INFO L227 lantSequenceWeakener]: Weakened 261 states. On average, predicates are now at 73.59% of their original sizes. [2018-10-27 06:23:19,131 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 06:23:19,570 INFO L415 sIntCurrentIteration]: We unified 265 AI predicates to 265 [2018-10-27 06:23:19,570 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 06:23:19,570 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 06:23:19,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [21] imperfect sequences [6] total 25 [2018-10-27 06:23:19,571 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 06:23:19,572 INFO L460 AbstractCegarLoop]: Interpolant automaton has 21 states [2018-10-27 06:23:19,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2018-10-27 06:23:19,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2018-10-27 06:23:19,573 INFO L87 Difference]: Start difference. First operand 1798 states and 2720 transitions. Second operand 21 states. [2018-10-27 06:23:55,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:23:55,016 INFO L93 Difference]: Finished difference Result 3596 states and 5545 transitions. [2018-10-27 06:23:55,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-27 06:23:55,016 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 266 [2018-10-27 06:23:55,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 06:23:55,027 INFO L225 Difference]: With dead ends: 3596 [2018-10-27 06:23:55,027 INFO L226 Difference]: Without dead ends: 2012 [2018-10-27 06:23:55,033 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 274 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=192, Invalid=678, Unknown=0, NotChecked=0, Total=870 [2018-10-27 06:23:55,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2012 states. [2018-10-27 06:23:55,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2012 to 2009. [2018-10-27 06:23:55,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2009 states. [2018-10-27 06:23:55,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2009 states to 2009 states and 2948 transitions. [2018-10-27 06:23:55,084 INFO L78 Accepts]: Start accepts. Automaton has 2009 states and 2948 transitions. Word has length 266 [2018-10-27 06:23:55,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 06:23:55,085 INFO L481 AbstractCegarLoop]: Abstraction has 2009 states and 2948 transitions. [2018-10-27 06:23:55,085 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2018-10-27 06:23:55,085 INFO L276 IsEmpty]: Start isEmpty. Operand 2009 states and 2948 transitions. [2018-10-27 06:23:55,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 277 [2018-10-27 06:23:55,094 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:23:55,095 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:23:55,095 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:23:55,095 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:23:55,096 INFO L82 PathProgramCache]: Analyzing trace with hash -358752647, now seen corresponding path program 1 times [2018-10-27 06:23:55,096 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:23:55,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:23:55,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:23:55,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:23:55,097 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:23:55,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:23:55,364 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 98 proven. 22 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-10-27 06:23:55,365 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:23:55,365 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 06:23:55,365 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 277 with the following transitions: [2018-10-27 06:23:55,366 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [68], [71], [75], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [131], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [997], [999], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-27 06:23:55,386 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 06:23:55,386 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 06:23:56,201 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 06:23:56,201 INFO L272 AbstractInterpreter]: Visited 197 different actions 387 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-10-27 06:23:56,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:23:56,210 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 06:23:56,774 INFO L227 lantSequenceWeakener]: Weakened 271 states. On average, predicates are now at 75.7% of their original sizes. [2018-10-27 06:23:56,774 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 06:23:57,066 INFO L415 sIntCurrentIteration]: We unified 275 AI predicates to 275 [2018-10-27 06:23:57,067 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 06:23:57,067 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 06:23:57,067 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [6] total 22 [2018-10-27 06:23:57,067 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 06:23:57,068 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-10-27 06:23:57,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-10-27 06:23:57,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2018-10-27 06:23:57,068 INFO L87 Difference]: Start difference. First operand 2009 states and 2948 transitions. Second operand 18 states. [2018-10-27 06:24:35,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:24:35,174 INFO L93 Difference]: Finished difference Result 5499 states and 8536 transitions. [2018-10-27 06:24:35,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-27 06:24:35,174 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 276 [2018-10-27 06:24:35,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 06:24:35,193 INFO L225 Difference]: With dead ends: 5499 [2018-10-27 06:24:35,193 INFO L226 Difference]: Without dead ends: 3915 [2018-10-27 06:24:35,202 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 284 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2018-10-27 06:24:35,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3915 states. [2018-10-27 06:24:35,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3915 to 3908. [2018-10-27 06:24:35,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3908 states. [2018-10-27 06:24:35,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3908 states to 3908 states and 5468 transitions. [2018-10-27 06:24:35,317 INFO L78 Accepts]: Start accepts. Automaton has 3908 states and 5468 transitions. Word has length 276 [2018-10-27 06:24:35,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 06:24:35,317 INFO L481 AbstractCegarLoop]: Abstraction has 3908 states and 5468 transitions. [2018-10-27 06:24:35,318 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-10-27 06:24:35,319 INFO L276 IsEmpty]: Start isEmpty. Operand 3908 states and 5468 transitions. [2018-10-27 06:24:35,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2018-10-27 06:24:35,338 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:24:35,338 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:24:35,338 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:24:35,339 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:24:35,339 INFO L82 PathProgramCache]: Analyzing trace with hash 1908375566, now seen corresponding path program 1 times [2018-10-27 06:24:35,339 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:24:35,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:24:35,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:24:35,340 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:24:35,340 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:24:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:24:35,721 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 112 proven. 91 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-27 06:24:35,722 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:24:35,722 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 06:24:35,722 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 305 with the following transitions: [2018-10-27 06:24:35,722 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [48], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [127], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [174], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [997], [999], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-27 06:24:35,729 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 06:24:35,729 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 06:24:37,063 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 06:24:37,063 INFO L272 AbstractInterpreter]: Visited 199 different actions 797 times. Merged at 8 different actions 36 times. Widened at 1 different actions 1 times. Found 7 fixpoints after 3 different actions. Largest state had 88 variables. [2018-10-27 06:24:37,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:24:37,071 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 06:24:37,071 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:24:37,071 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 06:24:37,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:24:37,083 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 06:24:37,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:24:37,376 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:24:37,638 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 152 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-10-27 06:24:37,639 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 06:24:37,957 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 152 proven. 2 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2018-10-27 06:24:37,980 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 06:24:37,981 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 17 [2018-10-27 06:24:37,981 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 06:24:37,982 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-10-27 06:24:37,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-10-27 06:24:37,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2018-10-27 06:24:37,982 INFO L87 Difference]: Start difference. First operand 3908 states and 5468 transitions. Second operand 16 states. [2018-10-27 06:24:39,777 WARN L179 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-27 06:25:06,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:25:06,190 INFO L93 Difference]: Finished difference Result 27834 states and 52193 transitions. [2018-10-27 06:25:06,190 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2018-10-27 06:25:06,190 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 304 [2018-10-27 06:25:06,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 06:25:06,386 INFO L225 Difference]: With dead ends: 27834 [2018-10-27 06:25:06,386 INFO L226 Difference]: Without dead ends: 24561 [2018-10-27 06:25:06,490 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 820 GetRequests, 686 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6836 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=3010, Invalid=15350, Unknown=0, NotChecked=0, Total=18360 [2018-10-27 06:25:06,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24561 states. [2018-10-27 06:25:07,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24561 to 24073. [2018-10-27 06:25:07,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24073 states. [2018-10-27 06:25:07,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24073 states to 24073 states and 36983 transitions. [2018-10-27 06:25:07,671 INFO L78 Accepts]: Start accepts. Automaton has 24073 states and 36983 transitions. Word has length 304 [2018-10-27 06:25:07,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 06:25:07,671 INFO L481 AbstractCegarLoop]: Abstraction has 24073 states and 36983 transitions. [2018-10-27 06:25:07,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-10-27 06:25:07,671 INFO L276 IsEmpty]: Start isEmpty. Operand 24073 states and 36983 transitions. [2018-10-27 06:25:07,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2018-10-27 06:25:07,789 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:25:07,789 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:25:07,790 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:25:07,790 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:25:07,790 INFO L82 PathProgramCache]: Analyzing trace with hash 679864284, now seen corresponding path program 1 times [2018-10-27 06:25:07,790 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:25:07,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:25:07,791 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:25:07,791 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:25:07,792 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:25:07,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:25:08,847 WARN L179 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 06:25:09,245 WARN L179 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-10-27 06:25:09,529 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-27 06:25:09,594 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 180 proven. 68 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-10-27 06:25:09,594 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:25:09,594 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 06:25:09,594 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 332 with the following transitions: [2018-10-27 06:25:09,595 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [28], [29], [33], [37], [41], [44], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [139], [140], [144], [148], [159], [163], [167], [171], [174], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [997], [999], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-27 06:25:09,599 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 06:25:09,599 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 06:25:11,757 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 06:25:11,758 INFO L272 AbstractInterpreter]: Visited 200 different actions 800 times. Merged at 9 different actions 35 times. Widened at 1 different actions 1 times. Found 8 fixpoints after 4 different actions. Largest state had 88 variables. [2018-10-27 06:25:11,800 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:25:11,800 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 06:25:11,800 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:25:11,800 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 06:25:11,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:25:11,823 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 06:25:12,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:25:12,118 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:25:12,429 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 188 proven. 2 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2018-10-27 06:25:12,430 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 06:25:13,021 INFO L134 CoverageAnalysis]: Checked inductivity of 341 backedges. 191 proven. 20 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2018-10-27 06:25:13,049 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 06:25:13,050 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 16 [2018-10-27 06:25:13,050 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 06:25:13,051 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-10-27 06:25:13,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-10-27 06:25:13,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2018-10-27 06:25:13,052 INFO L87 Difference]: Start difference. First operand 24073 states and 36983 transitions. Second operand 14 states. [2018-10-27 06:25:19,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:25:19,759 INFO L93 Difference]: Finished difference Result 93715 states and 172455 transitions. [2018-10-27 06:25:19,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2018-10-27 06:25:19,760 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 331 [2018-10-27 06:25:19,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 06:25:20,463 INFO L225 Difference]: With dead ends: 93715 [2018-10-27 06:25:20,463 INFO L226 Difference]: Without dead ends: 70488 [2018-10-27 06:25:20,636 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 713 GetRequests, 677 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 283 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2018-10-27 06:25:20,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70488 states. [2018-10-27 06:25:23,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70488 to 66161. [2018-10-27 06:25:23,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66161 states. [2018-10-27 06:25:25,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66161 states to 66161 states and 100120 transitions. [2018-10-27 06:25:25,194 INFO L78 Accepts]: Start accepts. Automaton has 66161 states and 100120 transitions. Word has length 331 [2018-10-27 06:25:25,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 06:25:25,194 INFO L481 AbstractCegarLoop]: Abstraction has 66161 states and 100120 transitions. [2018-10-27 06:25:25,194 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-10-27 06:25:25,194 INFO L276 IsEmpty]: Start isEmpty. Operand 66161 states and 100120 transitions. [2018-10-27 06:25:25,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2018-10-27 06:25:25,308 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:25:25,308 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:25:25,308 INFO L424 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:25:25,309 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:25:25,309 INFO L82 PathProgramCache]: Analyzing trace with hash -518222353, now seen corresponding path program 1 times [2018-10-27 06:25:25,309 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:25:25,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:25:25,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:25:25,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:25:25,310 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:25:25,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:25:25,903 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 199 proven. 83 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2018-10-27 06:25:25,903 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:25:25,903 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 06:25:25,904 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 354 with the following transitions: [2018-10-27 06:25:25,905 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [28], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [139], [140], [144], [148], [159], [163], [167], [171], [174], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [997], [999], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-27 06:25:25,910 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 06:25:25,911 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 06:25:27,652 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 06:25:27,652 INFO L272 AbstractInterpreter]: Visited 199 different actions 796 times. Merged at 9 different actions 35 times. Widened at 1 different actions 1 times. Found 8 fixpoints after 4 different actions. Largest state had 88 variables. [2018-10-27 06:25:27,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:25:27,658 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 06:25:27,658 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:25:27,658 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 06:25:27,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:25:27,666 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 06:25:27,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:25:27,950 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 06:25:28,257 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 264 proven. 4 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2018-10-27 06:25:28,257 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 06:25:28,493 INFO L134 CoverageAnalysis]: Checked inductivity of 407 backedges. 223 proven. 90 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-10-27 06:25:28,515 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 06:25:28,516 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-10-27 06:25:28,516 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 06:25:28,517 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 06:25:28,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 06:25:28,517 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-10-27 06:25:28,518 INFO L87 Difference]: Start difference. First operand 66161 states and 100120 transitions. Second operand 9 states. [2018-10-27 06:25:41,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 06:25:41,779 INFO L93 Difference]: Finished difference Result 236720 states and 407036 transitions. [2018-10-27 06:25:41,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2018-10-27 06:25:41,780 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 353 [2018-10-27 06:25:41,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 06:25:43,765 INFO L225 Difference]: With dead ends: 236720 [2018-10-27 06:25:43,765 INFO L226 Difference]: Without dead ends: 170983 [2018-10-27 06:25:44,027 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 764 GetRequests, 725 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=282, Invalid=1124, Unknown=0, NotChecked=0, Total=1406 [2018-10-27 06:25:44,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170983 states. [2018-10-27 06:25:48,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170983 to 164570. [2018-10-27 06:25:48,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164570 states. [2018-10-27 06:25:49,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164570 states to 164570 states and 235564 transitions. [2018-10-27 06:25:49,315 INFO L78 Accepts]: Start accepts. Automaton has 164570 states and 235564 transitions. Word has length 353 [2018-10-27 06:25:49,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 06:25:49,316 INFO L481 AbstractCegarLoop]: Abstraction has 164570 states and 235564 transitions. [2018-10-27 06:25:49,316 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 06:25:49,316 INFO L276 IsEmpty]: Start isEmpty. Operand 164570 states and 235564 transitions. [2018-10-27 06:25:49,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 380 [2018-10-27 06:25:49,459 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 06:25:49,460 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 06:25:49,460 INFO L424 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 06:25:49,460 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:25:49,460 INFO L82 PathProgramCache]: Analyzing trace with hash -915883668, now seen corresponding path program 1 times [2018-10-27 06:25:49,461 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 06:25:49,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:25:49,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 06:25:49,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 06:25:49,462 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 06:25:49,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 06:25:50,090 WARN L179 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-27 06:25:50,996 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 182 proven. 89 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-10-27 06:25:50,996 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 06:25:50,996 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 06:25:50,997 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 380 with the following transitions: [2018-10-27 06:25:50,997 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [8], [12], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [52], [53], [57], [61], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [213], [218], [220], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [436], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [997], [999], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-27 06:25:51,003 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 06:25:51,004 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 06:25:52,344 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 06:25:52,345 INFO L272 AbstractInterpreter]: Visited 202 different actions 598 times. Merged at 8 different actions 20 times. Never widened. Found 4 fixpoints after 3 different actions. Largest state had 88 variables. [2018-10-27 06:25:52,382 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 06:25:52,383 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 06:25:57,490 INFO L227 lantSequenceWeakener]: Weakened 376 states. On average, predicates are now at 74.35% of their original sizes. [2018-10-27 06:25:57,490 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 06:25:58,061 INFO L415 sIntCurrentIteration]: We unified 378 AI predicates to 378 [2018-10-27 06:25:58,061 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 06:25:58,061 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 06:25:58,062 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [29] imperfect sequences [10] total 37 [2018-10-27 06:25:58,062 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 06:25:58,063 INFO L460 AbstractCegarLoop]: Interpolant automaton has 29 states [2018-10-27 06:25:58,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2018-10-27 06:25:58,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=678, Unknown=0, NotChecked=0, Total=812 [2018-10-27 06:25:58,063 INFO L87 Difference]: Start difference. First operand 164570 states and 235564 transitions. Second operand 29 states. Received shutdown request... [2018-10-27 06:26:09,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2018-10-27 06:26:09,993 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 06:26:09,999 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 06:26:09,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 06:26:09 BoogieIcfgContainer [2018-10-27 06:26:09,999 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 06:26:10,000 INFO L168 Benchmark]: Toolchain (without parser) took 219711.59 ms. Allocated memory was 1.5 GB in the beginning and 4.9 GB in the end (delta: 3.4 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -935.2 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-10-27 06:26:10,002 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 06:26:10,002 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1216.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-10-27 06:26:10,003 INFO L168 Benchmark]: Boogie Procedure Inliner took 296.86 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -885.6 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. [2018-10-27 06:26:10,004 INFO L168 Benchmark]: Boogie Preprocessor took 147.03 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2018-10-27 06:26:10,005 INFO L168 Benchmark]: RCFGBuilder took 5008.88 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 257.0 MB). Peak memory consumption was 257.0 MB. Max. memory is 7.1 GB. [2018-10-27 06:26:10,005 INFO L168 Benchmark]: TraceAbstraction took 213032.57 ms. Allocated memory was 2.3 GB in the beginning and 4.9 GB in the end (delta: 2.6 GB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -404.7 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-10-27 06:26:10,010 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1216.37 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 296.86 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 759.7 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -885.6 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 147.03 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5008.88 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 257.0 MB). Peak memory consumption was 257.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 213032.57 ms. Allocated memory was 2.3 GB in the beginning and 4.9 GB in the end (delta: 2.6 GB). Free memory was 2.0 GB in the beginning and 2.4 GB in the end (delta: -404.7 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1590]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1590). Cancelled while BasicCegarLoop was constructing difference of abstraction (164570states) and FLOYD_HOARE automaton (currently 24 states, 29 states before enhancement),while ReachableStatesComputation was computing reachable states (1352 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 212.9s OverallTime, 10 OverallIterations, 7 TraceHistogramMax, 170.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2540 SDtfs, 26126 SDslu, 6510 SDs, 0 SdLazy, 43795 SolverSat, 7494 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 89.5s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 3527 GetRequests, 3192 SyntacticMatches, 8 SemanticMatches, 327 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8200 ImplicationChecksByTransitivity, 10.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=164570occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 9.8s AbstIntTime, 7 AbstIntIterations, 4 AbstIntStrong, 0.9988548691283659 AbsIntWeakeningRatio, 0.26387702818104186 AbsIntAvgWeakeningVarsNumRemoved, 57.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 11.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 11497 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 8.1s InterpolantComputationTime, 3801 NumberOfCodeBlocks, 3801 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 4773 ConstructedInterpolants, 0 QuantifiedInterpolants, 2939131 SizeOfPredicates, 2 NumberOfNonLiveVariables, 4966 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 16 InterpolantComputations, 3 PerfectInterpolantSequences, 3035/3553 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown