java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label00_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 15:59:52,366 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 15:59:52,369 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 15:59:52,388 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 15:59:52,389 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 15:59:52,391 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 15:59:52,392 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 15:59:52,394 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 15:59:52,396 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 15:59:52,397 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 15:59:52,400 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 15:59:52,402 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 15:59:52,403 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 15:59:52,405 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 15:59:52,412 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 15:59:52,413 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 15:59:52,416 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 15:59:52,421 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 15:59:52,423 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 15:59:52,427 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 15:59:52,429 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 15:59:52,431 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 15:59:52,433 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 15:59:52,433 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 15:59:52,434 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 15:59:52,435 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 15:59:52,436 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 15:59:52,437 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 15:59:52,438 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 15:59:52,439 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 15:59:52,441 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 15:59:52,442 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 15:59:52,442 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 15:59:52,444 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 15:59:52,445 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 15:59:52,447 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 15:59:52,448 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-14 15:59:52,479 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 15:59:52,479 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 15:59:52,480 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 15:59:52,480 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 15:59:52,483 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 15:59:52,483 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 15:59:52,484 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 15:59:52,484 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 15:59:52,484 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 15:59:52,484 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 15:59:52,485 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 15:59:52,486 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 15:59:52,486 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 15:59:52,487 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 15:59:52,487 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 15:59:52,487 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 15:59:52,487 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 15:59:52,489 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 15:59:52,489 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 15:59:52,489 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 15:59:52,489 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 15:59:52,490 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 15:59:52,490 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 15:59:52,490 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 15:59:52,490 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 15:59:52,491 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 15:59:52,491 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 15:59:52,491 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 15:59:52,491 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 15:59:52,491 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 15:59:52,492 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 15:59:52,492 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 15:59:52,492 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 15:59:52,541 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 15:59:52,555 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 15:59:52,561 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 15:59:52,562 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 15:59:52,563 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 15:59:52,564 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label00_true-unreach-call.c [2018-09-14 15:59:52,910 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/649b09e38/288bbcd730364d9b9710231d77961f5c/FLAGc47d0ee00 [2018-09-14 15:59:53,249 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 15:59:53,250 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label00_true-unreach-call.c [2018-09-14 15:59:53,271 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/649b09e38/288bbcd730364d9b9710231d77961f5c/FLAGc47d0ee00 [2018-09-14 15:59:53,288 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/649b09e38/288bbcd730364d9b9710231d77961f5c [2018-09-14 15:59:53,301 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 15:59:53,305 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 15:59:53,306 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 15:59:53,306 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 15:59:53,314 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 15:59:53,315 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 03:59:53" (1/1) ... [2018-09-14 15:59:53,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1045f853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:59:53, skipping insertion in model container [2018-09-14 15:59:53,319 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 03:59:53" (1/1) ... [2018-09-14 15:59:53,332 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 15:59:54,061 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 15:59:54,083 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 15:59:54,319 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 15:59:54,393 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:59:54 WrapperNode [2018-09-14 15:59:54,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 15:59:54,395 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 15:59:54,395 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 15:59:54,395 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 15:59:54,406 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:59:54" (1/1) ... [2018-09-14 15:59:54,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:59:54" (1/1) ... [2018-09-14 15:59:54,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 15:59:54,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 15:59:54,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 15:59:54,579 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 15:59:54,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:59:54" (1/1) ... [2018-09-14 15:59:54,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:59:54" (1/1) ... [2018-09-14 15:59:54,855 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:59:54" (1/1) ... [2018-09-14 15:59:54,855 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:59:54" (1/1) ... [2018-09-14 15:59:54,915 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:59:54" (1/1) ... [2018-09-14 15:59:54,936 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:59:54" (1/1) ... [2018-09-14 15:59:54,951 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:59:54" (1/1) ... [2018-09-14 15:59:54,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 15:59:54,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 15:59:54,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 15:59:54,968 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 15:59:54,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:59:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-09-14 15:59:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 15:59:55,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 15:59:55,047 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 15:59:55,048 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 15:59:55,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 15:59:55,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 15:59:55,050 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 15:59:55,050 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 15:59:59,593 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 15:59:59,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 03:59:59 BoogieIcfgContainer [2018-09-14 15:59:59,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 15:59:59,596 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 15:59:59,596 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 15:59:59,601 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 15:59:59,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 03:59:53" (1/3) ... [2018-09-14 15:59:59,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c3b6c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 03:59:59, skipping insertion in model container [2018-09-14 15:59:59,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 03:59:54" (2/3) ... [2018-09-14 15:59:59,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77c3b6c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 03:59:59, skipping insertion in model container [2018-09-14 15:59:59,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 03:59:59" (3/3) ... [2018-09-14 15:59:59,607 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label00_true-unreach-call.c [2018-09-14 15:59:59,619 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 15:59:59,634 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 15:59:59,705 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 15:59:59,706 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 15:59:59,706 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 15:59:59,707 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 15:59:59,707 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 15:59:59,707 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 15:59:59,707 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 15:59:59,707 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 15:59:59,708 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 15:59:59,754 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-09-14 15:59:59,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2018-09-14 15:59:59,784 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 15:59:59,788 INFO L376 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, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 15:59:59,789 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 15:59:59,795 INFO L82 PathProgramCache]: Analyzing trace with hash 612696124, now seen corresponding path program 1 times [2018-09-14 15:59:59,798 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 15:59:59,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 15:59:59,861 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 15:59:59,861 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 15:59:59,861 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:00:00,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:00:00,770 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 4 [2018-09-14 16:00:01,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:00:01,092 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 16:00:01,092 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 16:00:01,093 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:00:01,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 16:00:01,115 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 16:00:01,116 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 16:00:01,119 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-09-14 16:00:04,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:00:04,846 INFO L93 Difference]: Finished difference Result 1085 states and 1949 transitions. [2018-09-14 16:00:04,849 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 16:00:04,850 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 199 [2018-09-14 16:00:04,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:00:04,878 INFO L225 Difference]: With dead ends: 1085 [2018-09-14 16:00:04,879 INFO L226 Difference]: Without dead ends: 767 [2018-09-14 16:00:04,888 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 16:00:04,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2018-09-14 16:00:04,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 523. [2018-09-14 16:00:04,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 523 states. [2018-09-14 16:00:04,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 523 states to 523 states and 922 transitions. [2018-09-14 16:00:04,999 INFO L78 Accepts]: Start accepts. Automaton has 523 states and 922 transitions. Word has length 199 [2018-09-14 16:00:05,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:00:05,001 INFO L480 AbstractCegarLoop]: Abstraction has 523 states and 922 transitions. [2018-09-14 16:00:05,001 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 16:00:05,001 INFO L276 IsEmpty]: Start isEmpty. Operand 523 states and 922 transitions. [2018-09-14 16:00:05,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2018-09-14 16:00:05,010 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:00:05,011 INFO L376 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:00:05,011 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:00:05,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1141200915, now seen corresponding path program 1 times [2018-09-14 16:00:05,012 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:00:05,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:00:05,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:00:05,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:00:05,014 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:00:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:00:05,391 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:00:05,392 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 16:00:05,392 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 16:00:05,392 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:00:05,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 16:00:05,395 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 16:00:05,395 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 16:00:05,395 INFO L87 Difference]: Start difference. First operand 523 states and 922 transitions. Second operand 5 states. [2018-09-14 16:00:09,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:00:09,141 INFO L93 Difference]: Finished difference Result 1613 states and 2944 transitions. [2018-09-14 16:00:09,143 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 16:00:09,143 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 210 [2018-09-14 16:00:09,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:00:09,157 INFO L225 Difference]: With dead ends: 1613 [2018-09-14 16:00:09,157 INFO L226 Difference]: Without dead ends: 1096 [2018-09-14 16:00:09,162 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-14 16:00:09,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2018-09-14 16:00:09,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1073. [2018-09-14 16:00:09,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1073 states. [2018-09-14 16:00:09,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1073 states to 1073 states and 1774 transitions. [2018-09-14 16:00:09,253 INFO L78 Accepts]: Start accepts. Automaton has 1073 states and 1774 transitions. Word has length 210 [2018-09-14 16:00:09,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:00:09,254 INFO L480 AbstractCegarLoop]: Abstraction has 1073 states and 1774 transitions. [2018-09-14 16:00:09,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 16:00:09,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1073 states and 1774 transitions. [2018-09-14 16:00:09,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2018-09-14 16:00:09,261 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:00:09,262 INFO L376 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:00:09,262 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:00:09,264 INFO L82 PathProgramCache]: Analyzing trace with hash 2110773816, now seen corresponding path program 1 times [2018-09-14 16:00:09,264 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:00:09,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:00:09,265 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:00:09,265 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:00:09,265 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:00:09,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:00:09,605 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:00:09,606 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 16:00:09,606 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 16:00:09,606 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:00:09,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 16:00:09,607 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 16:00:09,610 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 16:00:09,611 INFO L87 Difference]: Start difference. First operand 1073 states and 1774 transitions. Second operand 3 states. [2018-09-14 16:00:11,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:00:11,341 INFO L93 Difference]: Finished difference Result 3069 states and 5224 transitions. [2018-09-14 16:00:11,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 16:00:11,349 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2018-09-14 16:00:11,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:00:11,365 INFO L225 Difference]: With dead ends: 3069 [2018-09-14 16:00:11,366 INFO L226 Difference]: Without dead ends: 2002 [2018-09-14 16:00:11,371 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 16:00:11,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2018-09-14 16:00:11,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 1984. [2018-09-14 16:00:11,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1984 states. [2018-09-14 16:00:11,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1984 states to 1984 states and 3215 transitions. [2018-09-14 16:00:11,433 INFO L78 Accepts]: Start accepts. Automaton has 1984 states and 3215 transitions. Word has length 212 [2018-09-14 16:00:11,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:00:11,434 INFO L480 AbstractCegarLoop]: Abstraction has 1984 states and 3215 transitions. [2018-09-14 16:00:11,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 16:00:11,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1984 states and 3215 transitions. [2018-09-14 16:00:11,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2018-09-14 16:00:11,445 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:00:11,445 INFO L376 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:00:11,445 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:00:11,446 INFO L82 PathProgramCache]: Analyzing trace with hash -639515856, now seen corresponding path program 1 times [2018-09-14 16:00:11,446 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:00:11,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:00:11,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:00:11,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:00:11,447 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:00:11,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:00:11,732 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-09-14 16:00:11,875 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 46 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 16:00:11,875 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:00:11,875 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-09-14 16:00:11,887 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:00:11,887 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:00:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:00:12,133 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:00:12,585 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-09-14 16:00:12,585 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:00:12,804 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-14 16:00:12,908 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-14 16:00:13,415 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 46 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 16:00:13,442 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 16:00:13,442 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-14 16:00:13,442 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:00:13,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 16:00:13,443 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 16:00:13,443 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-14 16:00:13,444 INFO L87 Difference]: Start difference. First operand 1984 states and 3215 transitions. Second operand 5 states. [2018-09-14 16:00:14,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:00:14,879 INFO L93 Difference]: Finished difference Result 6010 states and 10059 transitions. [2018-09-14 16:00:14,879 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-14 16:00:14,880 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 253 [2018-09-14 16:00:14,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:00:14,912 INFO L225 Difference]: With dead ends: 6010 [2018-09-14 16:00:14,913 INFO L226 Difference]: Without dead ends: 4032 [2018-09-14 16:00:14,922 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 500 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-09-14 16:00:14,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4032 states. [2018-09-14 16:00:15,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4032 to 3986. [2018-09-14 16:00:15,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3986 states. [2018-09-14 16:00:15,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3986 states to 3986 states and 6563 transitions. [2018-09-14 16:00:15,095 INFO L78 Accepts]: Start accepts. Automaton has 3986 states and 6563 transitions. Word has length 253 [2018-09-14 16:00:15,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:00:15,096 INFO L480 AbstractCegarLoop]: Abstraction has 3986 states and 6563 transitions. [2018-09-14 16:00:15,096 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 16:00:15,096 INFO L276 IsEmpty]: Start isEmpty. Operand 3986 states and 6563 transitions. [2018-09-14 16:00:15,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2018-09-14 16:00:15,116 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:00:15,117 INFO L376 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:00:15,117 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:00:15,118 INFO L82 PathProgramCache]: Analyzing trace with hash 439495155, now seen corresponding path program 1 times [2018-09-14 16:00:15,118 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:00:15,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:00:15,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:00:15,119 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:00:15,119 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:00:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:00:15,479 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:00:15,480 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:00:15,480 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-09-14 16:00:15,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:00:15,489 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:00:15,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:00:15,667 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:00:15,764 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-09-14 16:00:15,765 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:00:15,869 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 49 proven. 8 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 16:00:15,891 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 16:00:15,891 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-14 16:00:15,891 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:00:15,892 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 16:00:15,892 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 16:00:15,892 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-09-14 16:00:15,892 INFO L87 Difference]: Start difference. First operand 3986 states and 6563 transitions. Second operand 5 states. [2018-09-14 16:00:18,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:00:18,463 INFO L93 Difference]: Finished difference Result 11573 states and 19867 transitions. [2018-09-14 16:00:18,468 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 16:00:18,468 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 256 [2018-09-14 16:00:18,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:00:18,519 INFO L225 Difference]: With dead ends: 11573 [2018-09-14 16:00:18,520 INFO L226 Difference]: Without dead ends: 7593 [2018-09-14 16:00:18,544 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 509 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-09-14 16:00:18,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7593 states. [2018-09-14 16:00:18,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7593 to 7401. [2018-09-14 16:00:18,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7401 states. [2018-09-14 16:00:18,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7401 states to 7401 states and 11835 transitions. [2018-09-14 16:00:18,810 INFO L78 Accepts]: Start accepts. Automaton has 7401 states and 11835 transitions. Word has length 256 [2018-09-14 16:00:18,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:00:18,810 INFO L480 AbstractCegarLoop]: Abstraction has 7401 states and 11835 transitions. [2018-09-14 16:00:18,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 16:00:18,810 INFO L276 IsEmpty]: Start isEmpty. Operand 7401 states and 11835 transitions. [2018-09-14 16:00:18,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2018-09-14 16:00:18,844 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:00:18,844 INFO L376 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:00:18,845 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:00:18,845 INFO L82 PathProgramCache]: Analyzing trace with hash -766321697, now seen corresponding path program 1 times [2018-09-14 16:00:18,845 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:00:18,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:00:18,846 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:00:18,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:00:18,846 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:00:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:00:19,351 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-14 16:00:19,539 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-14 16:00:19,791 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 55 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 16:00:19,791 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:00:19,792 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2018-09-14 16:00:19,808 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:00:19,809 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:00:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:00:20,016 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:00:20,196 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-09-14 16:00:20,196 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:00:20,679 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 55 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 16:00:20,700 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 16:00:20,701 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 5] total 12 [2018-09-14 16:00:20,701 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:00:20,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 16:00:20,702 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 16:00:20,702 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2018-09-14 16:00:20,702 INFO L87 Difference]: Start difference. First operand 7401 states and 11835 transitions. Second operand 5 states. [2018-09-14 16:00:21,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:00:21,507 INFO L93 Difference]: Finished difference Result 22383 states and 37223 transitions. [2018-09-14 16:00:21,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-14 16:00:21,508 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 262 [2018-09-14 16:00:21,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:00:21,605 INFO L225 Difference]: With dead ends: 22383 [2018-09-14 16:00:21,606 INFO L226 Difference]: Without dead ends: 14988 [2018-09-14 16:00:21,638 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 532 GetRequests, 519 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2018-09-14 16:00:21,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14988 states. [2018-09-14 16:00:22,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14988 to 14828. [2018-09-14 16:00:22,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14828 states. [2018-09-14 16:00:22,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14828 states to 14828 states and 23877 transitions. [2018-09-14 16:00:22,207 INFO L78 Accepts]: Start accepts. Automaton has 14828 states and 23877 transitions. Word has length 262 [2018-09-14 16:00:22,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:00:22,208 INFO L480 AbstractCegarLoop]: Abstraction has 14828 states and 23877 transitions. [2018-09-14 16:00:22,208 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 16:00:22,208 INFO L276 IsEmpty]: Start isEmpty. Operand 14828 states and 23877 transitions. [2018-09-14 16:00:22,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2018-09-14 16:00:22,269 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:00:22,270 INFO L376 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:00:22,270 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:00:22,270 INFO L82 PathProgramCache]: Analyzing trace with hash 1371516580, now seen corresponding path program 1 times [2018-09-14 16:00:22,270 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:00:22,271 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:00:22,271 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:00:22,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:00:22,273 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:00:22,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:00:22,530 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 16:00:22,803 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 56 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 16:00:22,803 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:00:22,804 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:00:22,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:00:22,812 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:00:22,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:00:23,004 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:00:23,451 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2018-09-14 16:00:23,451 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:00:24,236 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 56 proven. 15 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 16:00:24,258 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 16:00:24,258 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-14 16:00:24,258 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:00:24,259 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 16:00:24,259 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 16:00:24,259 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-14 16:00:24,260 INFO L87 Difference]: Start difference. First operand 14828 states and 23877 transitions. Second operand 5 states. [2018-09-14 16:00:25,642 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 7 [2018-09-14 16:00:29,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:00:29,552 INFO L93 Difference]: Finished difference Result 43436 states and 71931 transitions. [2018-09-14 16:00:29,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 16:00:29,552 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 263 [2018-09-14 16:00:29,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:00:29,675 INFO L225 Difference]: With dead ends: 43436 [2018-09-14 16:00:29,676 INFO L226 Difference]: Without dead ends: 28614 [2018-09-14 16:00:29,736 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 535 GetRequests, 520 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-09-14 16:00:29,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28614 states. [2018-09-14 16:00:30,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28614 to 27594. [2018-09-14 16:00:30,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27594 states. [2018-09-14 16:00:30,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27594 states to 27594 states and 43161 transitions. [2018-09-14 16:00:30,636 INFO L78 Accepts]: Start accepts. Automaton has 27594 states and 43161 transitions. Word has length 263 [2018-09-14 16:00:30,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:00:30,636 INFO L480 AbstractCegarLoop]: Abstraction has 27594 states and 43161 transitions. [2018-09-14 16:00:30,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 16:00:30,636 INFO L276 IsEmpty]: Start isEmpty. Operand 27594 states and 43161 transitions. [2018-09-14 16:00:30,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2018-09-14 16:00:30,716 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:00:30,716 INFO L376 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:00:30,716 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:00:30,717 INFO L82 PathProgramCache]: Analyzing trace with hash -204377464, now seen corresponding path program 1 times [2018-09-14 16:00:30,717 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:00:30,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:00:30,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:00:30,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:00:30,718 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:00:30,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:00:31,248 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:00:31,249 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:00:31,249 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:00:31,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:00:31,264 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:00:31,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:00:31,448 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:00:31,536 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:00:31,536 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:00:31,890 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:00:31,911 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:00:31,911 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 16:00:31,927 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:00:31,927 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:00:32,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:00:32,373 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:00:32,485 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 59 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:00:32,486 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:00:32,812 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:00:32,814 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 16:00:32,815 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 7, 5] total 9 [2018-09-14 16:00:32,815 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 16:00:32,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 16:00:32,816 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 16:00:32,816 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2018-09-14 16:00:32,816 INFO L87 Difference]: Start difference. First operand 27594 states and 43161 transitions. Second operand 6 states. [2018-09-14 16:00:36,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:00:36,831 INFO L93 Difference]: Finished difference Result 83254 states and 154191 transitions. [2018-09-14 16:00:36,831 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 16:00:36,831 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 265 [2018-09-14 16:00:36,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:00:37,243 INFO L225 Difference]: With dead ends: 83254 [2018-09-14 16:00:37,243 INFO L226 Difference]: Without dead ends: 55666 [2018-09-14 16:00:37,391 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1070 GetRequests, 1056 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-09-14 16:00:37,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55666 states. [2018-09-14 16:00:39,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55666 to 53079. [2018-09-14 16:00:39,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53079 states. [2018-09-14 16:00:39,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53079 states to 53079 states and 81395 transitions. [2018-09-14 16:00:39,933 INFO L78 Accepts]: Start accepts. Automaton has 53079 states and 81395 transitions. Word has length 265 [2018-09-14 16:00:39,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:00:39,934 INFO L480 AbstractCegarLoop]: Abstraction has 53079 states and 81395 transitions. [2018-09-14 16:00:39,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 16:00:39,934 INFO L276 IsEmpty]: Start isEmpty. Operand 53079 states and 81395 transitions. [2018-09-14 16:00:40,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2018-09-14 16:00:40,059 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:00:40,059 INFO L376 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, 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] [2018-09-14 16:00:40,059 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:00:40,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1555377050, now seen corresponding path program 1 times [2018-09-14 16:00:40,060 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:00:40,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:00:40,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:00:40,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:00:40,061 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:00:40,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:00:40,378 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:00:40,378 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 16:00:40,378 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 16:00:40,378 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:00:40,379 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 16:00:40,379 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 16:00:40,379 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 16:00:40,380 INFO L87 Difference]: Start difference. First operand 53079 states and 81395 transitions. Second operand 6 states. [2018-09-14 16:00:42,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:00:42,876 INFO L93 Difference]: Finished difference Result 137587 states and 218950 transitions. [2018-09-14 16:00:42,877 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 16:00:42,877 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 286 [2018-09-14 16:00:42,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:00:43,220 INFO L225 Difference]: With dead ends: 137587 [2018-09-14 16:00:43,220 INFO L226 Difference]: Without dead ends: 84524 [2018-09-14 16:00:43,969 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 16:00:44,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84524 states. [2018-09-14 16:00:45,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84524 to 83741. [2018-09-14 16:00:45,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83741 states. [2018-09-14 16:00:45,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83741 states to 83741 states and 119504 transitions. [2018-09-14 16:00:45,882 INFO L78 Accepts]: Start accepts. Automaton has 83741 states and 119504 transitions. Word has length 286 [2018-09-14 16:00:45,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:00:45,882 INFO L480 AbstractCegarLoop]: Abstraction has 83741 states and 119504 transitions. [2018-09-14 16:00:45,882 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 16:00:45,884 INFO L276 IsEmpty]: Start isEmpty. Operand 83741 states and 119504 transitions. [2018-09-14 16:00:46,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2018-09-14 16:00:46,051 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:00:46,052 INFO L376 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, 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] [2018-09-14 16:00:46,052 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:00:46,052 INFO L82 PathProgramCache]: Analyzing trace with hash -953111912, now seen corresponding path program 1 times [2018-09-14 16:00:46,052 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:00:46,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:00:46,053 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:00:46,053 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:00:46,054 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:00:46,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:00:46,415 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 103 proven. 22 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-09-14 16:00:46,415 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:00:46,415 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:00:46,422 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:00:46,423 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:00:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:00:46,632 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:00:46,717 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-09-14 16:00:46,717 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:00:46,827 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-09-14 16:00:47,493 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:00:47,493 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 16:00:47,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:00:47,515 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:00:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:00:48,009 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:00:48,150 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-09-14 16:00:48,150 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:00:48,356 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 124 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-09-14 16:00:48,359 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 16:00:48,360 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 18 [2018-09-14 16:00:48,360 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 16:00:48,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 16:00:48,361 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 16:00:48,361 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2018-09-14 16:00:48,361 INFO L87 Difference]: Start difference. First operand 83741 states and 119504 transitions. Second operand 9 states. [2018-09-14 16:00:53,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:00:53,052 INFO L93 Difference]: Finished difference Result 168309 states and 246189 transitions. [2018-09-14 16:00:53,053 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-14 16:00:53,053 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 290 [2018-09-14 16:00:53,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:00:53,409 INFO L225 Difference]: With dead ends: 168309 [2018-09-14 16:00:53,410 INFO L226 Difference]: Without dead ends: 84584 [2018-09-14 16:00:53,634 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1175 GetRequests, 1153 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2018-09-14 16:00:53,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84584 states. [2018-09-14 16:00:56,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84584 to 76623. [2018-09-14 16:00:56,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76623 states. [2018-09-14 16:00:56,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76623 states to 76623 states and 98839 transitions. [2018-09-14 16:00:56,362 INFO L78 Accepts]: Start accepts. Automaton has 76623 states and 98839 transitions. Word has length 290 [2018-09-14 16:00:56,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:00:56,363 INFO L480 AbstractCegarLoop]: Abstraction has 76623 states and 98839 transitions. [2018-09-14 16:00:56,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-14 16:00:56,363 INFO L276 IsEmpty]: Start isEmpty. Operand 76623 states and 98839 transitions. [2018-09-14 16:00:56,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2018-09-14 16:00:56,460 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:00:56,460 INFO L376 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, 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, 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] [2018-09-14 16:00:56,461 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:00:56,461 INFO L82 PathProgramCache]: Analyzing trace with hash 2102724034, now seen corresponding path program 1 times [2018-09-14 16:00:56,461 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:00:56,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:00:56,462 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:00:56,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:00:56,462 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:00:56,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:00:57,140 WARN L178 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 12 [2018-09-14 16:00:57,890 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 111 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:00:57,890 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:00:57,891 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:00:57,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:00:57,899 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:00:58,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:00:58,084 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:00:58,428 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:00:58,429 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:00:58,772 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:00:58,794 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 16:00:58,794 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [14] total 19 [2018-09-14 16:00:58,794 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:00:58,795 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 16:00:58,795 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 16:00:58,796 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2018-09-14 16:00:58,796 INFO L87 Difference]: Start difference. First operand 76623 states and 98839 transitions. Second operand 5 states. [2018-09-14 16:01:02,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:01:02,761 INFO L93 Difference]: Finished difference Result 193477 states and 253791 transitions. [2018-09-14 16:01:02,761 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 16:01:02,761 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 319 [2018-09-14 16:01:02,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:01:03,284 INFO L225 Difference]: With dead ends: 193477 [2018-09-14 16:01:03,285 INFO L226 Difference]: Without dead ends: 125220 [2018-09-14 16:01:03,447 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 656 GetRequests, 635 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2018-09-14 16:01:03,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125220 states. [2018-09-14 16:01:05,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125220 to 122865. [2018-09-14 16:01:05,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 122865 states. [2018-09-14 16:01:05,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122865 states to 122865 states and 157958 transitions. [2018-09-14 16:01:05,726 INFO L78 Accepts]: Start accepts. Automaton has 122865 states and 157958 transitions. Word has length 319 [2018-09-14 16:01:05,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:01:05,727 INFO L480 AbstractCegarLoop]: Abstraction has 122865 states and 157958 transitions. [2018-09-14 16:01:05,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 16:01:05,727 INFO L276 IsEmpty]: Start isEmpty. Operand 122865 states and 157958 transitions. [2018-09-14 16:01:05,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 332 [2018-09-14 16:01:05,865 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:01:05,866 INFO L376 BasicCegarLoop]: trace histogram [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, 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, 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] [2018-09-14 16:01:05,866 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:01:05,866 INFO L82 PathProgramCache]: Analyzing trace with hash 1750536031, now seen corresponding path program 1 times [2018-09-14 16:01:05,866 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:01:05,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:01:05,867 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:01:05,867 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:01:05,867 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:01:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:01:06,483 WARN L178 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 12 [2018-09-14 16:01:07,713 WARN L178 SmtUtils]: Spent 718.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-09-14 16:01:08,487 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 133 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:01:08,487 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:01:08,487 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:01:08,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:01:08,496 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:01:08,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:01:08,706 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:01:08,978 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-09-14 16:01:08,979 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:01:09,434 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-09-14 16:01:09,455 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 16:01:09,455 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [16] total 22 [2018-09-14 16:01:09,456 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:01:09,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 16:01:09,456 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 16:01:09,456 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2018-09-14 16:01:09,457 INFO L87 Difference]: Start difference. First operand 122865 states and 157958 transitions. Second operand 5 states. [2018-09-14 16:01:13,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:01:13,982 INFO L93 Difference]: Finished difference Result 292248 states and 384015 transitions. [2018-09-14 16:01:13,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-14 16:01:13,983 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 331 [2018-09-14 16:01:13,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:01:14,554 INFO L225 Difference]: With dead ends: 292248 [2018-09-14 16:01:14,555 INFO L226 Difference]: Without dead ends: 169399 [2018-09-14 16:01:14,714 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 679 GetRequests, 658 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=79, Invalid=427, Unknown=0, NotChecked=0, Total=506 [2018-09-14 16:01:14,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169399 states. [2018-09-14 16:01:18,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169399 to 164840. [2018-09-14 16:01:18,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164840 states. [2018-09-14 16:01:18,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164840 states to 164840 states and 211645 transitions. [2018-09-14 16:01:18,357 INFO L78 Accepts]: Start accepts. Automaton has 164840 states and 211645 transitions. Word has length 331 [2018-09-14 16:01:18,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:01:18,358 INFO L480 AbstractCegarLoop]: Abstraction has 164840 states and 211645 transitions. [2018-09-14 16:01:18,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 16:01:18,358 INFO L276 IsEmpty]: Start isEmpty. Operand 164840 states and 211645 transitions. [2018-09-14 16:01:18,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 365 [2018-09-14 16:01:18,555 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:01:18,555 INFO L376 BasicCegarLoop]: trace histogram [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, 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, 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] [2018-09-14 16:01:18,555 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:01:18,556 INFO L82 PathProgramCache]: Analyzing trace with hash -282866042, now seen corresponding path program 1 times [2018-09-14 16:01:18,556 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:01:18,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:01:18,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:01:18,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:01:18,557 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:01:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:01:18,877 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 16:01:19,069 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 157 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 16:01:19,070 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:01:19,070 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:01:19,078 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:01:19,079 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:01:19,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:01:19,297 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:01:19,469 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 148 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-09-14 16:01:19,469 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:01:19,697 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 157 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 16:01:19,718 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 16:01:19,718 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 13 [2018-09-14 16:01:19,718 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:01:19,719 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 16:01:19,719 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 16:01:19,719 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2018-09-14 16:01:19,720 INFO L87 Difference]: Start difference. First operand 164840 states and 211645 transitions. Second operand 6 states. [2018-09-14 16:01:29,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:01:29,042 INFO L93 Difference]: Finished difference Result 304061 states and 395506 transitions. [2018-09-14 16:01:29,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-14 16:01:29,043 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 364 [2018-09-14 16:01:29,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:01:29,593 INFO L225 Difference]: With dead ends: 304061 [2018-09-14 16:01:29,593 INFO L226 Difference]: Without dead ends: 167182 [2018-09-14 16:01:29,767 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 741 GetRequests, 720 SyntacticMatches, 4 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2018-09-14 16:01:29,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167182 states. [2018-09-14 16:01:32,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167182 to 165618. [2018-09-14 16:01:32,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 165618 states. [2018-09-14 16:01:33,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165618 states to 165618 states and 211768 transitions. [2018-09-14 16:01:33,749 INFO L78 Accepts]: Start accepts. Automaton has 165618 states and 211768 transitions. Word has length 364 [2018-09-14 16:01:33,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:01:33,750 INFO L480 AbstractCegarLoop]: Abstraction has 165618 states and 211768 transitions. [2018-09-14 16:01:33,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 16:01:33,750 INFO L276 IsEmpty]: Start isEmpty. Operand 165618 states and 211768 transitions. [2018-09-14 16:01:33,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2018-09-14 16:01:33,971 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:01:33,971 INFO L376 BasicCegarLoop]: trace histogram [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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:01:33,971 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:01:33,972 INFO L82 PathProgramCache]: Analyzing trace with hash -476706631, now seen corresponding path program 1 times [2018-09-14 16:01:33,972 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:01:33,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:01:33,973 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:01:33,973 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:01:33,973 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:01:34,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:01:34,412 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 191 proven. 79 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-09-14 16:01:34,412 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:01:34,412 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:01:34,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:01:34,421 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:01:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:01:34,677 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:01:34,930 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 196 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-09-14 16:01:34,930 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:01:35,127 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 191 proven. 79 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-09-14 16:01:35,151 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:01:35,152 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 16:01:35,169 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:01:35,169 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:01:35,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:01:35,755 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:01:35,853 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 196 proven. 2 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2018-09-14 16:01:35,853 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:01:35,998 INFO L134 CoverageAnalysis]: Checked inductivity of 283 backedges. 191 proven. 79 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-09-14 16:01:36,001 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 16:01:36,001 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-09-14 16:01:36,001 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 16:01:36,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 16:01:36,003 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 16:01:36,003 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-09-14 16:01:36,003 INFO L87 Difference]: Start difference. First operand 165618 states and 211768 transitions. Second operand 9 states. [2018-09-14 16:01:55,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:01:55,281 INFO L93 Difference]: Finished difference Result 525795 states and 802971 transitions. [2018-09-14 16:01:55,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2018-09-14 16:01:55,281 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 381 [2018-09-14 16:01:55,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:01:57,241 INFO L225 Difference]: With dead ends: 525795 [2018-09-14 16:01:57,242 INFO L226 Difference]: Without dead ends: 375264 [2018-09-14 16:01:57,654 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1604 GetRequests, 1551 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 771 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=503, Invalid=2253, Unknown=0, NotChecked=0, Total=2756 [2018-09-14 16:01:57,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375264 states. [2018-09-14 16:02:08,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375264 to 352883. [2018-09-14 16:02:08,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 352883 states. [2018-09-14 16:02:09,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352883 states to 352883 states and 445981 transitions. [2018-09-14 16:02:09,065 INFO L78 Accepts]: Start accepts. Automaton has 352883 states and 445981 transitions. Word has length 381 [2018-09-14 16:02:09,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:02:09,065 INFO L480 AbstractCegarLoop]: Abstraction has 352883 states and 445981 transitions. [2018-09-14 16:02:09,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-14 16:02:09,066 INFO L276 IsEmpty]: Start isEmpty. Operand 352883 states and 445981 transitions. [2018-09-14 16:02:09,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2018-09-14 16:02:09,661 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:02:09,661 INFO L376 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:02:09,661 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:02:09,662 INFO L82 PathProgramCache]: Analyzing trace with hash -2040060956, now seen corresponding path program 1 times [2018-09-14 16:02:09,662 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:02:09,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:02:09,663 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:02:09,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:02:09,663 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:02:09,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:02:10,237 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 265 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:02:10,238 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:02:10,238 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:02:10,246 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:02:10,246 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:02:10,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:02:10,483 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:02:10,700 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-09-14 16:02:10,701 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:02:11,973 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 183 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2018-09-14 16:02:11,997 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 16:02:11,997 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-09-14 16:02:11,997 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:02:11,998 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 16:02:11,998 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 16:02:11,998 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-14 16:02:11,998 INFO L87 Difference]: Start difference. First operand 352883 states and 445981 transitions. Second operand 3 states. [2018-09-14 16:02:18,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:02:18,827 INFO L93 Difference]: Finished difference Result 607268 states and 769664 transitions. [2018-09-14 16:02:18,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 16:02:18,829 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 385 [2018-09-14 16:02:18,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:02:19,834 INFO L225 Difference]: With dead ends: 607268 [2018-09-14 16:02:19,835 INFO L226 Difference]: Without dead ends: 296019 [2018-09-14 16:02:20,364 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 775 GetRequests, 768 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-14 16:02:20,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296019 states. [2018-09-14 16:02:33,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296019 to 294428. [2018-09-14 16:02:33,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294428 states. [2018-09-14 16:02:34,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294428 states to 294428 states and 363827 transitions. [2018-09-14 16:02:34,302 INFO L78 Accepts]: Start accepts. Automaton has 294428 states and 363827 transitions. Word has length 385 [2018-09-14 16:02:34,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:02:34,303 INFO L480 AbstractCegarLoop]: Abstraction has 294428 states and 363827 transitions. [2018-09-14 16:02:34,303 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 16:02:34,303 INFO L276 IsEmpty]: Start isEmpty. Operand 294428 states and 363827 transitions. [2018-09-14 16:02:34,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 438 [2018-09-14 16:02:34,855 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:02:34,855 INFO L376 BasicCegarLoop]: trace histogram [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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:02:34,856 INFO L423 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:02:34,856 INFO L82 PathProgramCache]: Analyzing trace with hash -839481589, now seen corresponding path program 1 times [2018-09-14 16:02:34,856 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:02:34,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:02:34,857 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:02:34,857 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:02:34,858 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:02:34,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:02:35,572 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-14 16:02:38,398 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 350 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:02:38,398 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:02:38,398 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:02:38,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:02:38,406 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:02:38,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:02:38,667 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:02:39,196 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2018-09-14 16:02:39,197 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:02:39,687 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 237 proven. 140 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2018-09-14 16:02:39,709 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 16:02:39,709 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [18, 6] total 24 [2018-09-14 16:02:39,709 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:02:39,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 16:02:39,710 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 16:02:39,710 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2018-09-14 16:02:39,711 INFO L87 Difference]: Start difference. First operand 294428 states and 363827 transitions. Second operand 5 states. [2018-09-14 16:02:48,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:02:48,648 INFO L93 Difference]: Finished difference Result 723331 states and 884976 transitions. [2018-09-14 16:02:48,648 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-14 16:02:48,648 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 437 [2018-09-14 16:02:48,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:02:49,946 INFO L225 Difference]: With dead ends: 723331 [2018-09-14 16:02:49,946 INFO L226 Difference]: Without dead ends: 428939 [2018-09-14 16:02:50,322 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 892 GetRequests, 866 SyntacticMatches, 3 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=94, Invalid=506, Unknown=0, NotChecked=0, Total=600 [2018-09-14 16:02:50,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428939 states. [2018-09-14 16:02:58,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428939 to 427932. [2018-09-14 16:02:58,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427932 states. [2018-09-14 16:02:59,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427932 states to 427932 states and 518187 transitions. [2018-09-14 16:02:59,900 INFO L78 Accepts]: Start accepts. Automaton has 427932 states and 518187 transitions. Word has length 437 [2018-09-14 16:02:59,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:02:59,901 INFO L480 AbstractCegarLoop]: Abstraction has 427932 states and 518187 transitions. [2018-09-14 16:02:59,901 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 16:02:59,901 INFO L276 IsEmpty]: Start isEmpty. Operand 427932 states and 518187 transitions. [2018-09-14 16:03:00,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2018-09-14 16:03:00,665 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:03:00,665 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:03:00,666 INFO L423 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:03:00,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1492413642, now seen corresponding path program 1 times [2018-09-14 16:03:00,666 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:03:00,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:03:00,667 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:03:00,667 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:03:00,667 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:03:00,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:03:01,111 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 304 proven. 44 refuted. 0 times theorem prover too weak. 175 trivial. 0 not checked. [2018-09-14 16:03:01,111 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:03:01,111 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:03:01,119 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:03:01,119 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:03:01,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:03:01,418 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:03:02,806 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 382 proven. 2 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2018-09-14 16:03:02,806 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:03:02,969 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 346 proven. 38 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2018-09-14 16:03:02,991 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:03:02,992 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 18 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 16:03:03,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:03:03,008 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:03:03,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:03:03,731 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:03:03,904 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 382 proven. 2 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2018-09-14 16:03:03,904 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:03:04,449 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 346 proven. 38 refuted. 0 times theorem prover too weak. 139 trivial. 0 not checked. [2018-09-14 16:03:04,452 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 16:03:04,453 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 17 [2018-09-14 16:03:04,453 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 16:03:04,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 16:03:04,454 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 16:03:04,454 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2018-09-14 16:03:04,456 INFO L87 Difference]: Start difference. First operand 427932 states and 518187 transitions. Second operand 9 states. Received shutdown request... [2018-09-14 16:03:28,431 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2018-09-14 16:03:28,432 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 16:03:28,438 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 16:03:28,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 04:03:28 BoogieIcfgContainer [2018-09-14 16:03:28,439 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 16:03:28,440 INFO L168 Benchmark]: Toolchain (without parser) took 215137.61 ms. Allocated memory was 1.5 GB in the beginning and 6.1 GB in the end (delta: 4.6 GB). Free memory was 1.4 GB in the beginning and 4.8 GB in the end (delta: -3.4 GB). Peak memory consumption was 4.9 GB. Max. memory is 7.1 GB. [2018-09-14 16:03:28,441 INFO L168 Benchmark]: CDTParser took 0.24 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. [2018-09-14 16:03:28,442 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1088.56 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: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-09-14 16:03:28,442 INFO L168 Benchmark]: Boogie Procedure Inliner took 183.83 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-14 16:03:28,443 INFO L168 Benchmark]: Boogie Preprocessor took 387.77 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 799.0 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -935.5 MB). Peak memory consumption was 48.3 MB. Max. memory is 7.1 GB. [2018-09-14 16:03:28,444 INFO L168 Benchmark]: RCFGBuilder took 4627.75 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 264.3 MB). Peak memory consumption was 264.3 MB. Max. memory is 7.1 GB. [2018-09-14 16:03:28,444 INFO L168 Benchmark]: TraceAbstraction took 208843.36 ms. Allocated memory was 2.3 GB in the beginning and 6.1 GB in the end (delta: 3.8 GB). Free memory was 2.0 GB in the beginning and 4.8 GB in the end (delta: -2.8 GB). Peak memory consumption was 4.7 GB. Max. memory is 7.1 GB. [2018-09-14 16:03:28,449 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 1088.56 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: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 183.83 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 387.77 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 799.0 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -935.5 MB). Peak memory consumption was 48.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4627.75 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 264.3 MB). Peak memory consumption was 264.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 208843.36 ms. Allocated memory was 2.3 GB in the beginning and 6.1 GB in the end (delta: 3.8 GB). Free memory was 2.0 GB in the beginning and 4.8 GB in the end (delta: -2.8 GB). Peak memory consumption was 4.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1611]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1611). Cancelled while BasicCegarLoop was constructing difference of abstraction (427932states) and FLOYD_HOARE automaton (currently 34 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (772276 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 208.7s OverallTime, 17 OverallIterations, 5 TraceHistogramMax, 117.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3757 SDtfs, 20216 SDslu, 5394 SDs, 0 SdLazy, 33541 SolverSat, 6138 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 47.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11709 GetRequests, 11410 SyntacticMatches, 29 SemanticMatches, 270 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1885 ImplicationChecksByTransitivity, 13.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=427932occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 54.1s AutomataMinimizationTime, 16 MinimizatonAttempts, 46491 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.1s SsaConstructionTime, 4.9s SatisfiabilityAnalysisTime, 22.2s InterpolantComputationTime, 10904 NumberOfCodeBlocks, 10904 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 16561 ConstructedInterpolants, 0 QuantifiedInterpolants, 23046036 SizeOfPredicates, 58 NumberOfNonLiveVariables, 20872 ConjunctsInSsa, 165 ConjunctsInUnsatCore, 51 InterpolantComputations, 16 PerfectInterpolantSequences, 8649/9482 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem03_label00_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_16-03-28-464.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem03_label00_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_16-03-28-464.csv Completed graceful shutdown