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/Problem04_label08_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 10:19:32,494 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 10:19:32,496 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 10:19:32,512 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 10:19:32,513 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 10:19:32,514 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 10:19:32,515 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 10:19:32,517 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 10:19:32,519 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 10:19:32,519 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 10:19:32,520 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 10:19:32,521 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 10:19:32,521 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 10:19:32,522 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 10:19:32,524 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 10:19:32,524 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 10:19:32,525 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 10:19:32,527 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 10:19:32,529 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 10:19:32,531 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 10:19:32,532 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 10:19:32,533 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 10:19:32,535 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 10:19:32,536 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 10:19:32,536 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 10:19:32,537 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 10:19:32,538 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 10:19:32,539 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 10:19:32,540 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 10:19:32,541 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 10:19:32,541 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 10:19:32,542 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 10:19:32,542 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 10:19:32,542 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 10:19:32,543 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 10:19:32,544 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 10:19:32,544 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 [2018-09-18 10:19:32,571 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 10:19:32,572 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 10:19:32,573 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 10:19:32,573 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 10:19:32,573 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 10:19:32,573 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 10:19:32,573 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 10:19:32,574 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 10:19:32,574 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 10:19:32,574 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 10:19:32,574 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 10:19:32,574 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 10:19:32,575 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 10:19:32,575 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 10:19:32,575 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 10:19:32,576 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 10:19:32,576 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 10:19:32,576 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 10:19:32,576 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 10:19:32,576 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 10:19:32,577 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 10:19:32,577 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 10:19:32,577 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 10:19:32,577 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 10:19:32,578 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 10:19:32,578 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 10:19:32,578 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 10:19:32,578 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 10:19:32,578 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 10:19:32,579 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 10:19:32,579 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 10:19:32,579 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 10:19:32,579 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 10:19:32,579 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 10:19:32,624 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 10:19:32,639 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 10:19:32,645 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 10:19:32,647 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 10:19:32,648 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 10:19:32,648 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label08_true-unreach-call.c [2018-09-18 10:19:33,034 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93f1dac90/d42e9f9b23ac4ec7be527f95dae95d20/FLAGcfdc5b313 [2018-09-18 10:19:33,544 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 10:19:33,546 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label08_true-unreach-call.c [2018-09-18 10:19:33,582 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93f1dac90/d42e9f9b23ac4ec7be527f95dae95d20/FLAGcfdc5b313 [2018-09-18 10:19:33,606 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/93f1dac90/d42e9f9b23ac4ec7be527f95dae95d20 [2018-09-18 10:19:33,619 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 10:19:33,622 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 10:19:33,624 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 10:19:33,624 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 10:19:33,631 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 10:19:33,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 10:19:33" (1/1) ... [2018-09-18 10:19:33,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17c1f22a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:33, skipping insertion in model container [2018-09-18 10:19:33,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 10:19:33" (1/1) ... [2018-09-18 10:19:33,650 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 10:19:34,990 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 10:19:35,010 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 10:19:35,746 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 10:19:35,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:35 WrapperNode [2018-09-18 10:19:35,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 10:19:35,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 10:19:35,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 10:19:35,909 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 10:19:35,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:35" (1/1) ... [2018-09-18 10:19:35,982 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:35" (1/1) ... [2018-09-18 10:19:36,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 10:19:36,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 10:19:36,059 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 10:19:36,060 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 10:19:36,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:35" (1/1) ... [2018-09-18 10:19:36,489 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:35" (1/1) ... [2018-09-18 10:19:36,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:35" (1/1) ... [2018-09-18 10:19:36,508 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:35" (1/1) ... [2018-09-18 10:19:36,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:35" (1/1) ... [2018-09-18 10:19:36,627 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:35" (1/1) ... [2018-09-18 10:19:36,649 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:35" (1/1) ... [2018-09-18 10:19:36,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 10:19:36,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 10:19:36,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 10:19:36,674 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 10:19:36,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:35" (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 [2018-09-18 10:19:36,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 10:19:36,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 10:19:36,749 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 10:19:36,749 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 10:19:36,750 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 10:19:36,750 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 10:19:36,750 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 10:19:36,750 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 10:19:36,750 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 10:19:36,751 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 10:19:36,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 10:19:36,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 10:19:36,751 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 10:19:36,751 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 10:19:47,691 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 10:19:47,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 10:19:47 BoogieIcfgContainer [2018-09-18 10:19:47,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 10:19:47,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 10:19:47,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 10:19:47,696 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 10:19:47,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 10:19:33" (1/3) ... [2018-09-18 10:19:47,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ca05e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 10:19:47, skipping insertion in model container [2018-09-18 10:19:47,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:35" (2/3) ... [2018-09-18 10:19:47,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ca05e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 10:19:47, skipping insertion in model container [2018-09-18 10:19:47,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 10:19:47" (3/3) ... [2018-09-18 10:19:47,700 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label08_true-unreach-call.c [2018-09-18 10:19:47,711 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 10:19:47,724 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 10:19:47,795 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 10:19:47,796 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 10:19:47,796 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 10:19:47,796 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 10:19:47,796 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 10:19:47,796 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 10:19:47,796 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 10:19:47,796 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 10:19:47,797 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 10:19:47,837 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states. [2018-09-18 10:19:47,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 821 [2018-09-18 10:19:47,902 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:19:47,904 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 10:19:47,906 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:19:47,912 INFO L82 PathProgramCache]: Analyzing trace with hash 325113534, now seen corresponding path program 1 times [2018-09-18 10:19:47,915 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:19:47,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:19:47,971 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:19:47,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:19:47,972 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:19:48,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:19:49,696 WARN L178 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 10:19:50,896 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:19:50,898 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 10:19:50,898 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 10:19:50,899 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 10:19:50,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 10:19:50,918 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 10:19:50,919 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 10:19:50,921 INFO L87 Difference]: Start difference. First operand 907 states. Second operand 3 states. [2018-09-18 10:19:57,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:19:57,628 INFO L93 Difference]: Finished difference Result 2647 states and 5102 transitions. [2018-09-18 10:19:57,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 10:19:57,631 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 820 [2018-09-18 10:19:57,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:19:57,679 INFO L225 Difference]: With dead ends: 2647 [2018-09-18 10:19:57,679 INFO L226 Difference]: Without dead ends: 1738 [2018-09-18 10:19:57,693 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 10:19:57,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2018-09-18 10:19:57,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1738. [2018-09-18 10:19:57,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1738 states. [2018-09-18 10:19:57,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 3145 transitions. [2018-09-18 10:19:57,852 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 3145 transitions. Word has length 820 [2018-09-18 10:19:57,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:19:57,855 INFO L480 AbstractCegarLoop]: Abstraction has 1738 states and 3145 transitions. [2018-09-18 10:19:57,855 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 10:19:57,856 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 3145 transitions. [2018-09-18 10:19:57,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 830 [2018-09-18 10:19:57,896 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:19:57,896 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 10:19:57,897 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:19:57,898 INFO L82 PathProgramCache]: Analyzing trace with hash 141011869, now seen corresponding path program 1 times [2018-09-18 10:19:57,898 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:19:57,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:19:57,900 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:19:57,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:19:57,901 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:19:58,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:19:59,575 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:19:59,576 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 10:19:59,576 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 10:19:59,576 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 10:19:59,579 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 10:19:59,579 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 10:19:59,579 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 10:19:59,580 INFO L87 Difference]: Start difference. First operand 1738 states and 3145 transitions. Second operand 3 states. [2018-09-18 10:20:07,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:20:07,858 INFO L93 Difference]: Finished difference Result 5140 states and 9422 transitions. [2018-09-18 10:20:07,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 10:20:07,861 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 829 [2018-09-18 10:20:07,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:20:07,884 INFO L225 Difference]: With dead ends: 5140 [2018-09-18 10:20:07,885 INFO L226 Difference]: Without dead ends: 3408 [2018-09-18 10:20:07,891 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 10:20:07,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3408 states. [2018-09-18 10:20:07,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3408 to 3408. [2018-09-18 10:20:07,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3408 states. [2018-09-18 10:20:07,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3408 states to 3408 states and 5832 transitions. [2018-09-18 10:20:07,991 INFO L78 Accepts]: Start accepts. Automaton has 3408 states and 5832 transitions. Word has length 829 [2018-09-18 10:20:07,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:20:07,993 INFO L480 AbstractCegarLoop]: Abstraction has 3408 states and 5832 transitions. [2018-09-18 10:20:07,993 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 10:20:07,993 INFO L276 IsEmpty]: Start isEmpty. Operand 3408 states and 5832 transitions. [2018-09-18 10:20:08,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 842 [2018-09-18 10:20:08,011 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:20:08,012 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 10:20:08,012 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:20:08,013 INFO L82 PathProgramCache]: Analyzing trace with hash -904388475, now seen corresponding path program 1 times [2018-09-18 10:20:08,013 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:20:08,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:20:08,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:20:08,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:20:08,016 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:20:08,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:20:08,855 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:20:08,855 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 10:20:08,855 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-18 10:20:08,856 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 10:20:08,858 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-18 10:20:08,858 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-18 10:20:08,859 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-09-18 10:20:08,859 INFO L87 Difference]: Start difference. First operand 3408 states and 5832 transitions. Second operand 7 states. [2018-09-18 10:20:19,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:20:19,938 INFO L93 Difference]: Finished difference Result 8748 states and 15062 transitions. [2018-09-18 10:20:19,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-18 10:20:19,939 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 841 [2018-09-18 10:20:19,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:20:19,972 INFO L225 Difference]: With dead ends: 8748 [2018-09-18 10:20:19,972 INFO L226 Difference]: Without dead ends: 5346 [2018-09-18 10:20:19,981 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2018-09-18 10:20:19,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5346 states. [2018-09-18 10:20:20,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5346 to 5210. [2018-09-18 10:20:20,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5210 states. [2018-09-18 10:20:20,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5210 states to 5210 states and 8533 transitions. [2018-09-18 10:20:20,128 INFO L78 Accepts]: Start accepts. Automaton has 5210 states and 8533 transitions. Word has length 841 [2018-09-18 10:20:20,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:20:20,128 INFO L480 AbstractCegarLoop]: Abstraction has 5210 states and 8533 transitions. [2018-09-18 10:20:20,128 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-18 10:20:20,129 INFO L276 IsEmpty]: Start isEmpty. Operand 5210 states and 8533 transitions. [2018-09-18 10:20:20,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 859 [2018-09-18 10:20:20,152 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:20:20,153 INFO L376 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 10:20:20,153 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:20:20,154 INFO L82 PathProgramCache]: Analyzing trace with hash -688694794, now seen corresponding path program 1 times [2018-09-18 10:20:20,154 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:20:20,155 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:20:20,155 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:20:20,156 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:20:20,156 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:20:20,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:20:21,126 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:20:21,127 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:20:21,127 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 [2018-09-18 10:20:21,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:20:21,146 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:20:21,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:20:21,557 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:20:22,709 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:20:22,709 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:20:23,501 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:20:23,532 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:20:23,533 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 3 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 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 10:20:23,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:20:23,553 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:20:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:20:24,178 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:20:25,201 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:20:25,201 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:20:25,651 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:20:25,654 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 10:20:25,656 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-09-18 10:20:25,656 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 10:20:25,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 10:20:25,658 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 10:20:25,659 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2018-09-18 10:20:25,659 INFO L87 Difference]: Start difference. First operand 5210 states and 8533 transitions. Second operand 9 states. [2018-09-18 10:20:40,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:20:40,756 INFO L93 Difference]: Finished difference Result 26595 states and 46225 transitions. [2018-09-18 10:20:40,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-09-18 10:20:40,757 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 858 [2018-09-18 10:20:40,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:20:40,862 INFO L225 Difference]: With dead ends: 26595 [2018-09-18 10:20:40,862 INFO L226 Difference]: Without dead ends: 21391 [2018-09-18 10:20:40,891 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3469 GetRequests, 3430 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=276, Invalid=1206, Unknown=0, NotChecked=0, Total=1482 [2018-09-18 10:20:40,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21391 states. [2018-09-18 10:20:41,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21391 to 21177. [2018-09-18 10:20:41,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21177 states. [2018-09-18 10:20:41,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21177 states to 21177 states and 29894 transitions. [2018-09-18 10:20:41,485 INFO L78 Accepts]: Start accepts. Automaton has 21177 states and 29894 transitions. Word has length 858 [2018-09-18 10:20:41,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:20:41,485 INFO L480 AbstractCegarLoop]: Abstraction has 21177 states and 29894 transitions. [2018-09-18 10:20:41,485 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 10:20:41,485 INFO L276 IsEmpty]: Start isEmpty. Operand 21177 states and 29894 transitions. [2018-09-18 10:20:41,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 953 [2018-09-18 10:20:41,563 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:20:41,564 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 10:20:41,564 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:20:41,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1275626082, now seen corresponding path program 1 times [2018-09-18 10:20:41,565 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:20:41,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:20:41,566 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:20:41,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:20:41,566 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:20:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:20:41,936 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 10:20:43,112 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 126 proven. 46 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 10:20:43,112 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:20:43,114 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 [2018-09-18 10:20:43,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:20:43,130 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:20:43,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:20:43,434 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:20:44,323 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2018-09-18 10:20:44,323 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:20:45,687 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 126 proven. 46 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 10:20:45,721 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 10:20:45,722 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-18 10:20:45,722 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 10:20:45,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 10:20:45,723 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 10:20:45,723 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-18 10:20:45,724 INFO L87 Difference]: Start difference. First operand 21177 states and 29894 transitions. Second operand 5 states. [2018-09-18 10:20:53,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:20:53,137 INFO L93 Difference]: Finished difference Result 55260 states and 80335 transitions. [2018-09-18 10:20:53,137 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 10:20:53,137 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 952 [2018-09-18 10:20:53,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:20:53,288 INFO L225 Difference]: With dead ends: 55260 [2018-09-18 10:20:53,288 INFO L226 Difference]: Without dead ends: 34089 [2018-09-18 10:20:53,358 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1913 GetRequests, 1898 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-09-18 10:20:53,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34089 states. [2018-09-18 10:20:54,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34089 to 33979. [2018-09-18 10:20:54,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33979 states. [2018-09-18 10:20:54,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33979 states to 33979 states and 45284 transitions. [2018-09-18 10:20:54,180 INFO L78 Accepts]: Start accepts. Automaton has 33979 states and 45284 transitions. Word has length 952 [2018-09-18 10:20:54,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:20:54,181 INFO L480 AbstractCegarLoop]: Abstraction has 33979 states and 45284 transitions. [2018-09-18 10:20:54,181 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 10:20:54,181 INFO L276 IsEmpty]: Start isEmpty. Operand 33979 states and 45284 transitions. [2018-09-18 10:20:54,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1059 [2018-09-18 10:20:54,285 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:20:54,286 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 10:20:54,286 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:20:54,287 INFO L82 PathProgramCache]: Analyzing trace with hash -1076267612, now seen corresponding path program 1 times [2018-09-18 10:20:54,287 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:20:54,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:20:54,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:20:54,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:20:54,288 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:20:54,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:20:54,684 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 10:20:55,921 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 226 proven. 142 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2018-09-18 10:20:55,921 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:20:55,921 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 [2018-09-18 10:20:55,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:20:55,933 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:20:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:20:56,269 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:20:57,261 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 225 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2018-09-18 10:20:57,262 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:20:58,115 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 226 proven. 142 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2018-09-18 10:20:58,138 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 10:20:58,139 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-18 10:20:58,139 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 10:20:58,140 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 10:20:58,140 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 10:20:58,140 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-18 10:20:58,140 INFO L87 Difference]: Start difference. First operand 33979 states and 45284 transitions. Second operand 5 states. [2018-09-18 10:21:05,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:21:05,887 INFO L93 Difference]: Finished difference Result 97089 states and 134411 transitions. [2018-09-18 10:21:05,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 10:21:05,887 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1058 [2018-09-18 10:21:05,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:21:06,125 INFO L225 Difference]: With dead ends: 97089 [2018-09-18 10:21:06,125 INFO L226 Difference]: Without dead ends: 63116 [2018-09-18 10:21:06,203 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2125 GetRequests, 2110 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-09-18 10:21:06,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63116 states. [2018-09-18 10:21:07,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63116 to 62951. [2018-09-18 10:21:07,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62951 states. [2018-09-18 10:21:07,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62951 states to 62951 states and 84074 transitions. [2018-09-18 10:21:07,736 INFO L78 Accepts]: Start accepts. Automaton has 62951 states and 84074 transitions. Word has length 1058 [2018-09-18 10:21:07,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:21:07,737 INFO L480 AbstractCegarLoop]: Abstraction has 62951 states and 84074 transitions. [2018-09-18 10:21:07,737 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 10:21:07,737 INFO L276 IsEmpty]: Start isEmpty. Operand 62951 states and 84074 transitions. [2018-09-18 10:21:07,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1185 [2018-09-18 10:21:07,846 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:21:07,847 INFO L376 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 10:21:07,847 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:21:07,848 INFO L82 PathProgramCache]: Analyzing trace with hash 1804185652, now seen corresponding path program 1 times [2018-09-18 10:21:07,849 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:21:07,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:21:07,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:21:07,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:21:07,850 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:21:07,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:21:08,273 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-09-18 10:21:09,074 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 367 proven. 262 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2018-09-18 10:21:09,074 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:21:09,074 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 [2018-09-18 10:21:09,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:21:09,082 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:21:09,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:21:09,458 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:21:10,713 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 385 proven. 2 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2018-09-18 10:21:10,714 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:21:11,657 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 384 proven. 193 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2018-09-18 10:21:11,679 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:21:11,679 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 [2018-09-18 10:21:11,696 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:21:11,697 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:21:12,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:21:12,550 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:21:13,300 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 385 proven. 2 refuted. 0 times theorem prover too weak. 498 trivial. 0 not checked. [2018-09-18 10:21:13,301 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:21:14,201 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 384 proven. 193 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2018-09-18 10:21:14,204 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 10:21:14,206 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5, 5, 5] total 18 [2018-09-18 10:21:14,206 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 10:21:14,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-18 10:21:14,207 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-18 10:21:14,207 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-09-18 10:21:14,208 INFO L87 Difference]: Start difference. First operand 62951 states and 84074 transitions. Second operand 14 states. [2018-09-18 10:21:58,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:21:58,775 INFO L93 Difference]: Finished difference Result 261445 states and 392524 transitions. [2018-09-18 10:21:58,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2018-09-18 10:21:58,775 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 1184 [2018-09-18 10:21:58,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:21:59,913 INFO L225 Difference]: With dead ends: 261445 [2018-09-18 10:21:59,913 INFO L226 Difference]: Without dead ends: 198500 [2018-09-18 10:22:00,105 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4848 GetRequests, 4774 SyntacticMatches, 8 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1583 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=876, Invalid=3680, Unknown=0, NotChecked=0, Total=4556 [2018-09-18 10:22:00,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198500 states. [2018-09-18 10:22:04,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198500 to 194188. [2018-09-18 10:22:04,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194188 states. [2018-09-18 10:22:04,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194188 states to 194188 states and 252822 transitions. [2018-09-18 10:22:04,760 INFO L78 Accepts]: Start accepts. Automaton has 194188 states and 252822 transitions. Word has length 1184 [2018-09-18 10:22:04,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:22:04,760 INFO L480 AbstractCegarLoop]: Abstraction has 194188 states and 252822 transitions. [2018-09-18 10:22:04,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-18 10:22:04,760 INFO L276 IsEmpty]: Start isEmpty. Operand 194188 states and 252822 transitions. [2018-09-18 10:22:05,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1225 [2018-09-18 10:22:05,030 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:22:05,031 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 10:22:05,031 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:22:05,032 INFO L82 PathProgramCache]: Analyzing trace with hash -1269443708, now seen corresponding path program 1 times [2018-09-18 10:22:05,032 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:22:05,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:22:05,033 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:22:05,033 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:22:05,033 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:22:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:22:06,905 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 462 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:22:06,905 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:22:06,905 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 [2018-09-18 10:22:06,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:22:06,913 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:22:07,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:22:07,287 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:22:08,293 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 462 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:22:08,293 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:22:09,410 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 462 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:22:09,433 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:22:09,434 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 [2018-09-18 10:22:09,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:22:09,450 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:22:10,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:22:10,309 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:22:11,252 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 462 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:22:11,253 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:22:11,902 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 462 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:22:11,905 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 10:22:11,907 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-09-18 10:22:11,907 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 10:22:11,908 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 10:22:11,909 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 10:22:11,909 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2018-09-18 10:22:11,909 INFO L87 Difference]: Start difference. First operand 194188 states and 252822 transitions. Second operand 9 states. [2018-09-18 10:22:40,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:22:40,529 INFO L93 Difference]: Finished difference Result 398809 states and 552914 transitions. [2018-09-18 10:22:40,529 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2018-09-18 10:22:40,529 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1224 [2018-09-18 10:22:40,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:22:42,414 INFO L225 Difference]: With dead ends: 398809 [2018-09-18 10:22:42,414 INFO L226 Difference]: Without dead ends: 204632 [2018-09-18 10:22:42,633 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4960 GetRequests, 4908 SyntacticMatches, 2 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 682 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=525, Invalid=2127, Unknown=0, NotChecked=0, Total=2652 [2018-09-18 10:22:42,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204632 states. [2018-09-18 10:22:46,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204632 to 199512. [2018-09-18 10:22:46,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 199512 states. [2018-09-18 10:22:46,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199512 states to 199512 states and 256551 transitions. [2018-09-18 10:22:46,499 INFO L78 Accepts]: Start accepts. Automaton has 199512 states and 256551 transitions. Word has length 1224 [2018-09-18 10:22:46,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:22:46,500 INFO L480 AbstractCegarLoop]: Abstraction has 199512 states and 256551 transitions. [2018-09-18 10:22:46,500 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 10:22:46,500 INFO L276 IsEmpty]: Start isEmpty. Operand 199512 states and 256551 transitions. [2018-09-18 10:22:46,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1390 [2018-09-18 10:22:46,742 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:22:46,743 INFO L376 BasicCegarLoop]: trace histogram [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, 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, 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, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 10:22:46,744 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:22:46,744 INFO L82 PathProgramCache]: Analyzing trace with hash 716515704, now seen corresponding path program 1 times [2018-09-18 10:22:46,744 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:22:46,745 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:22:46,745 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:22:46,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:22:46,746 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:22:46,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:22:47,364 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 10:22:53,133 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 673 proven. 161 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2018-09-18 10:22:53,134 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:22:53,134 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 [2018-09-18 10:22:53,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:22:53,148 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:22:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:22:53,596 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:22:54,527 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 630 proven. 2 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2018-09-18 10:22:54,528 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:22:55,374 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 694 proven. 108 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2018-09-18 10:22:55,397 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:22:55,398 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 11 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 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 10:22:55,414 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:22:55,414 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:22:56,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:22:56,399 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:22:57,271 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 630 proven. 2 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2018-09-18 10:22:57,271 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:22:58,238 INFO L134 CoverageAnalysis]: Checked inductivity of 958 backedges. 694 proven. 108 refuted. 0 times theorem prover too weak. 156 trivial. 0 not checked. [2018-09-18 10:22:58,241 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 10:22:58,243 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5, 5, 5] total 21 [2018-09-18 10:22:58,243 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 10:22:58,245 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-18 10:22:58,245 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-18 10:22:58,246 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=355, Unknown=0, NotChecked=0, Total=420 [2018-09-18 10:22:58,246 INFO L87 Difference]: Start difference. First operand 199512 states and 256551 transitions. Second operand 14 states. Received shutdown request... [2018-09-18 10:23:06,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-09-18 10:23:06,756 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 10:23:06,761 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 10:23:06,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 10:23:06 BoogieIcfgContainer [2018-09-18 10:23:06,761 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 10:23:06,762 INFO L168 Benchmark]: Toolchain (without parser) took 213142.79 ms. Allocated memory was 1.5 GB in the beginning and 5.0 GB in the end (delta: 3.5 GB). Free memory was 1.4 GB in the beginning and 4.0 GB in the end (delta: -2.6 GB). Peak memory consumption was 924.0 MB. Max. memory is 7.1 GB. [2018-09-18 10:23:06,763 INFO L168 Benchmark]: CDTParser took 0.20 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. [2018-09-18 10:23:06,764 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2283.93 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 211.4 MB). Peak memory consumption was 211.4 MB. Max. memory is 7.1 GB. [2018-09-18 10:23:06,764 INFO L168 Benchmark]: Boogie Procedure Inliner took 150.40 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-18 10:23:06,765 INFO L168 Benchmark]: Boogie Preprocessor took 613.90 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 849.9 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. [2018-09-18 10:23:06,766 INFO L168 Benchmark]: RCFGBuilder took 11018.03 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 180.9 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -160.5 MB). Peak memory consumption was 723.9 MB. Max. memory is 7.1 GB. [2018-09-18 10:23:06,767 INFO L168 Benchmark]: TraceAbstraction took 199069.00 ms. Allocated memory was 2.6 GB in the beginning and 5.0 GB in the end (delta: 2.5 GB). Free memory was 2.4 GB in the beginning and 4.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 926.5 MB. Max. memory is 7.1 GB. [2018-09-18 10:23:06,772 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 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 2283.93 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 211.4 MB). Peak memory consumption was 211.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 150.40 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 613.90 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 849.9 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11018.03 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 180.9 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -160.5 MB). Peak memory consumption was 723.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 199069.00 ms. Allocated memory was 2.6 GB in the beginning and 5.0 GB in the end (delta: 2.5 GB). Free memory was 2.4 GB in the beginning and 4.0 GB in the end (delta: -1.6 GB). Peak memory consumption was 926.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 4778]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 4778). Cancelled while BasicCegarLoop was constructing difference of abstraction (199512states) and FLOYD_HOARE automaton (currently 36 states, 14 states before enhancement), while ReachableStatesComputation was computing reachable states (14727 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 907 locations, 1 error locations. TIMEOUT Result, 198.9s OverallTime, 9 OverallIterations, 7 TraceHistogramMax, 142.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1784 SDtfs, 52695 SDslu, 3050 SDs, 0 SdLazy, 94536 SolverSat, 32566 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 104.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22964 GetRequests, 22697 SyntacticMatches, 29 SemanticMatches, 238 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3228 ImplicationChecksByTransitivity, 9.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=199512occurred in iteration=8, 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: 11.8s AutomataMinimizationTime, 8 MinimizatonAttempts, 10057 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.1s SsaConstructionTime, 5.4s SatisfiabilityAnalysisTime, 24.8s InterpolantComputationTime, 20475 NumberOfCodeBlocks, 20475 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 31766 ConstructedInterpolants, 0 QuantifiedInterpolants, 49650261 SizeOfPredicates, 5 NumberOfNonLiveVariables, 16027 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 29 InterpolantComputations, 5 PerfectInterpolantSequences, 12360/13789 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/Problem04_label08_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_10-23-06-791.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem04_label08_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_10-23-06-791.csv Completed graceful shutdown