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_label23_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 10:21:20,737 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 10:21:20,740 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 10:21:20,759 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 10:21:20,759 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 10:21:20,761 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 10:21:20,762 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 10:21:20,774 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 10:21:20,776 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 10:21:20,777 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 10:21:20,780 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 10:21:20,780 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 10:21:20,781 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 10:21:20,782 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 10:21:20,783 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 10:21:20,786 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 10:21:20,787 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 10:21:20,791 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 10:21:20,795 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 10:21:20,802 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 10:21:20,804 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 10:21:20,808 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 10:21:20,813 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 10:21:20,813 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 10:21:20,813 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 10:21:20,817 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 10:21:20,818 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 10:21:20,819 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 10:21:20,820 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 10:21:20,821 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 10:21:20,821 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 10:21:20,825 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 10:21:20,825 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 10:21:20,825 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 10:21:20,828 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 10:21:20,829 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 10:21:20,830 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 10:21:20,861 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 10:21:20,862 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 10:21:20,862 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 10:21:20,864 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 10:21:20,865 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 10:21:20,865 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 10:21:20,865 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 10:21:20,865 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 10:21:20,865 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 10:21:20,866 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 10:21:20,866 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 10:21:20,866 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 10:21:20,867 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 10:21:20,867 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 10:21:20,867 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 10:21:20,867 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 10:21:20,868 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 10:21:20,868 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 10:21:20,868 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 10:21:20,869 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 10:21:20,869 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 10:21:20,869 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 10:21:20,869 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 10:21:20,870 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 10:21:20,870 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 10:21:20,870 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 10:21:20,870 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 10:21:20,870 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 10:21:20,871 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 10:21:20,871 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 10:21:20,871 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 10:21:20,871 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 10:21:20,871 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 10:21:20,872 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 10:21:20,931 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 10:21:20,944 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 10:21:20,951 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 10:21:20,953 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 10:21:20,953 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 10:21:20,954 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label23_true-unreach-call_false-termination.c [2018-09-18 10:21:21,293 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/848092327/f7c642e8b3e746bc91c76c0e56c514d6/FLAG2869d9778 [2018-09-18 10:21:21,854 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 10:21:21,856 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label23_true-unreach-call_false-termination.c [2018-09-18 10:21:21,893 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/848092327/f7c642e8b3e746bc91c76c0e56c514d6/FLAG2869d9778 [2018-09-18 10:21:21,915 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/848092327/f7c642e8b3e746bc91c76c0e56c514d6 [2018-09-18 10:21:21,930 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 10:21:21,935 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 10:21:21,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 10:21:21,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 10:21:21,946 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 10:21:21,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 10:21:21" (1/1) ... [2018-09-18 10:21:21,951 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 10:21:21, skipping insertion in model container [2018-09-18 10:21:21,952 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 10:21:21" (1/1) ... [2018-09-18 10:21:21,966 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 10:21:23,420 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 10:21:23,440 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 10:21:24,038 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 10:21:24,188 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:21:24 WrapperNode [2018-09-18 10:21:24,189 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 10:21:24,190 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 10:21:24,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 10:21:24,190 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 10:21:24,201 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:21:24" (1/1) ... [2018-09-18 10:21:24,262 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:21:24" (1/1) ... [2018-09-18 10:21:24,322 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 10:21:24,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 10:21:24,323 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 10:21:24,323 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 10:21:24,795 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:21:24" (1/1) ... [2018-09-18 10:21:24,795 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:21:24" (1/1) ... [2018-09-18 10:21:24,810 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:21:24" (1/1) ... [2018-09-18 10:21:24,810 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:21:24" (1/1) ... [2018-09-18 10:21:24,906 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:21:24" (1/1) ... [2018-09-18 10:21:24,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:21:24" (1/1) ... [2018-09-18 10:21:24,970 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:21:24" (1/1) ... [2018-09-18 10:21:24,996 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 10:21:24,997 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 10:21:24,997 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 10:21:24,997 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 10:21:25,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:21:24" (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 10:21:25,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 10:21:25,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 10:21:25,078 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 10:21:25,078 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 10:21:25,078 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 10:21:25,079 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 10:21:25,079 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 10:21:25,079 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 10:21:25,079 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 10:21:25,080 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 10:21:25,081 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 10:21:25,081 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 10:21:25,081 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 10:21:25,081 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 10:21:35,518 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 10:21:35,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 10:21:35 BoogieIcfgContainer [2018-09-18 10:21:35,519 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 10:21:35,520 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 10:21:35,520 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 10:21:35,524 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 10:21:35,524 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 10:21:21" (1/3) ... [2018-09-18 10:21:35,525 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 10:21:35, skipping insertion in model container [2018-09-18 10:21:35,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:21:24" (2/3) ... [2018-09-18 10:21:35,525 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 10:21:35, skipping insertion in model container [2018-09-18 10:21:35,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 10:21:35" (3/3) ... [2018-09-18 10:21:35,528 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label23_true-unreach-call_false-termination.c [2018-09-18 10:21:35,538 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 10:21:35,548 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 10:21:35,615 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 10:21:35,616 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 10:21:35,616 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 10:21:35,616 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 10:21:35,616 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 10:21:35,617 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 10:21:35,617 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 10:21:35,617 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 10:21:35,617 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 10:21:35,666 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states. [2018-09-18 10:21:35,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 819 [2018-09-18 10:21:35,736 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:21:35,738 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] [2018-09-18 10:21:35,741 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:21:35,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1778430826, now seen corresponding path program 1 times [2018-09-18 10:21:35,750 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:21:35,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:21:35,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:21:35,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:21:35,805 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:21:36,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:21:37,488 WARN L178 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 10:21:38,493 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 10:21:38,496 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 10:21:38,496 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 10:21:38,496 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 10:21:38,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 10:21:38,520 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 10:21:38,521 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 10:21:38,524 INFO L87 Difference]: Start difference. First operand 907 states. Second operand 3 states. [2018-09-18 10:21:44,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:21:44,289 INFO L93 Difference]: Finished difference Result 2647 states and 5102 transitions. [2018-09-18 10:21:44,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 10:21:44,291 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 818 [2018-09-18 10:21:44,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:21:44,340 INFO L225 Difference]: With dead ends: 2647 [2018-09-18 10:21:44,340 INFO L226 Difference]: Without dead ends: 1738 [2018-09-18 10:21:44,353 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 10:21:44,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2018-09-18 10:21:44,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1738. [2018-09-18 10:21:44,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1738 states. [2018-09-18 10:21:44,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 3286 transitions. [2018-09-18 10:21:44,523 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 3286 transitions. Word has length 818 [2018-09-18 10:21:44,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:21:44,527 INFO L480 AbstractCegarLoop]: Abstraction has 1738 states and 3286 transitions. [2018-09-18 10:21:44,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 10:21:44,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 3286 transitions. [2018-09-18 10:21:44,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 828 [2018-09-18 10:21:44,557 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:21:44,560 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] [2018-09-18 10:21:44,560 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:21:44,561 INFO L82 PathProgramCache]: Analyzing trace with hash 35900725, now seen corresponding path program 1 times [2018-09-18 10:21:44,561 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:21:44,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:21:44,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:21:44,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:21:44,563 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:21:44,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:21:46,812 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 10:21:46,813 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 10:21:46,813 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 10:21:46,813 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 10:21:46,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 10:21:46,817 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 10:21:46,818 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 10:21:46,818 INFO L87 Difference]: Start difference. First operand 1738 states and 3286 transitions. Second operand 4 states. [2018-09-18 10:21:56,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:21:56,937 INFO L93 Difference]: Finished difference Result 6810 states and 13141 transitions. [2018-09-18 10:21:56,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 10:21:56,937 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 827 [2018-09-18 10:21:56,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:21:56,974 INFO L225 Difference]: With dead ends: 6810 [2018-09-18 10:21:56,975 INFO L226 Difference]: Without dead ends: 5078 [2018-09-18 10:21:56,984 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 10:21:56,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5078 states. [2018-09-18 10:21:57,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5078 to 5078. [2018-09-18 10:21:57,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5078 states. [2018-09-18 10:21:57,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5078 states to 5078 states and 8407 transitions. [2018-09-18 10:21:57,140 INFO L78 Accepts]: Start accepts. Automaton has 5078 states and 8407 transitions. Word has length 827 [2018-09-18 10:21:57,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:21:57,142 INFO L480 AbstractCegarLoop]: Abstraction has 5078 states and 8407 transitions. [2018-09-18 10:21:57,142 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 10:21:57,142 INFO L276 IsEmpty]: Start isEmpty. Operand 5078 states and 8407 transitions. [2018-09-18 10:21:57,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 971 [2018-09-18 10:21:57,185 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:21:57,186 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:21:57,187 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:21:57,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1823971009, now seen corresponding path program 1 times [2018-09-18 10:21:57,188 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:21:57,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:21:57,189 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:21:57,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:21:57,190 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:21:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:21:58,250 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 155 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-09-18 10:21:58,250 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:21:58,250 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 10:21:58,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:21:58,261 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:21:58,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:21:58,669 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:21:59,573 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2018-09-18 10:21:59,574 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:21:59,807 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-18 10:22:01,250 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 155 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-09-18 10:22:01,275 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:22:01,275 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 10:22:01,294 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:22:01,294 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:22:01,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:22:01,995 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:22:02,586 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 50 proven. 2 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2018-09-18 10:22:02,586 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:22:03,765 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 155 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-09-18 10:22:03,769 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 10:22:03,769 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-09-18 10:22:03,770 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 10:22:03,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 10:22:03,773 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 10:22:03,773 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-09-18 10:22:03,773 INFO L87 Difference]: Start difference. First operand 5078 states and 8407 transitions. Second operand 9 states. [2018-09-18 10:22:04,833 WARN L178 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 12 [2018-09-18 10:22:25,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:22:25,059 INFO L93 Difference]: Finished difference Result 28107 states and 53737 transitions. [2018-09-18 10:22:25,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-09-18 10:22:25,059 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 970 [2018-09-18 10:22:25,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:22:25,315 INFO L225 Difference]: With dead ends: 28107 [2018-09-18 10:22:25,315 INFO L226 Difference]: Without dead ends: 23035 [2018-09-18 10:22:25,356 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3942 GetRequests, 3898 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 472 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=405, Invalid=1575, Unknown=0, NotChecked=0, Total=1980 [2018-09-18 10:22:25,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23035 states. [2018-09-18 10:22:26,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23035 to 22380. [2018-09-18 10:22:26,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22380 states. [2018-09-18 10:22:26,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22380 states to 22380 states and 33181 transitions. [2018-09-18 10:22:26,170 INFO L78 Accepts]: Start accepts. Automaton has 22380 states and 33181 transitions. Word has length 970 [2018-09-18 10:22:26,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:22:26,171 INFO L480 AbstractCegarLoop]: Abstraction has 22380 states and 33181 transitions. [2018-09-18 10:22:26,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 10:22:26,171 INFO L276 IsEmpty]: Start isEmpty. Operand 22380 states and 33181 transitions. [2018-09-18 10:22:26,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 976 [2018-09-18 10:22:26,272 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:22:26,273 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 10:22:26,273 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:22:26,274 INFO L82 PathProgramCache]: Analyzing trace with hash -1759263475, now seen corresponding path program 1 times [2018-09-18 10:22:26,274 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:22:26,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:22:26,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:22:26,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:22:26,275 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:22:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:22:26,742 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 10:22:28,022 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:22:28,022 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 10:22:28,023 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 10:22:28,023 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 10:22:28,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 10:22:28,025 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 10:22:28,025 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 10:22:28,025 INFO L87 Difference]: Start difference. First operand 22380 states and 33181 transitions. Second operand 6 states. [2018-09-18 10:22:35,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:22:35,478 INFO L93 Difference]: Finished difference Result 54941 states and 87570 transitions. [2018-09-18 10:22:35,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 10:22:35,482 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 975 [2018-09-18 10:22:35,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:22:35,659 INFO L225 Difference]: With dead ends: 54941 [2018-09-18 10:22:35,659 INFO L226 Difference]: Without dead ends: 32567 [2018-09-18 10:22:35,760 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 10:22:35,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32567 states. [2018-09-18 10:22:36,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32567 to 32440. [2018-09-18 10:22:36,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32440 states. [2018-09-18 10:22:36,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32440 states to 32440 states and 50299 transitions. [2018-09-18 10:22:36,626 INFO L78 Accepts]: Start accepts. Automaton has 32440 states and 50299 transitions. Word has length 975 [2018-09-18 10:22:36,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:22:36,627 INFO L480 AbstractCegarLoop]: Abstraction has 32440 states and 50299 transitions. [2018-09-18 10:22:36,627 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 10:22:36,627 INFO L276 IsEmpty]: Start isEmpty. Operand 32440 states and 50299 transitions. [2018-09-18 10:22:36,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 996 [2018-09-18 10:22:36,756 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:22:36,757 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 10:22:36,757 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:22:36,759 INFO L82 PathProgramCache]: Analyzing trace with hash -1224320694, now seen corresponding path program 1 times [2018-09-18 10:22:36,759 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:22:36,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:22:36,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:22:36,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:22:36,761 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:22:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:22:37,549 WARN L178 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-09-18 10:22:37,886 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2018-09-18 10:22:41,192 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 189 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:22:41,193 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:22:41,193 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 10:22:41,201 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:22:41,201 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:22:41,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:22:41,507 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:22:42,126 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-09-18 10:22:42,127 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:22:43,216 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2018-09-18 10:22:43,238 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 10:22:43,238 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [10] total 11 [2018-09-18 10:22:43,238 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 10:22:43,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 10:22:43,240 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 10:22:43,240 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-09-18 10:22:43,240 INFO L87 Difference]: Start difference. First operand 32440 states and 50299 transitions. Second operand 3 states. [2018-09-18 10:22:48,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:22:48,010 INFO L93 Difference]: Finished difference Result 64874 states and 100811 transitions. [2018-09-18 10:22:48,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 10:22:48,010 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 995 [2018-09-18 10:22:48,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:22:48,151 INFO L225 Difference]: With dead ends: 64874 [2018-09-18 10:22:48,151 INFO L226 Difference]: Without dead ends: 32440 [2018-09-18 10:22:48,217 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1999 GetRequests, 1985 SyntacticMatches, 5 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-09-18 10:22:48,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32440 states. [2018-09-18 10:22:48,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32440 to 32373. [2018-09-18 10:22:48,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32373 states. [2018-09-18 10:22:48,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32373 states to 32373 states and 46973 transitions. [2018-09-18 10:22:48,970 INFO L78 Accepts]: Start accepts. Automaton has 32373 states and 46973 transitions. Word has length 995 [2018-09-18 10:22:48,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:22:48,971 INFO L480 AbstractCegarLoop]: Abstraction has 32373 states and 46973 transitions. [2018-09-18 10:22:48,971 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 10:22:48,972 INFO L276 IsEmpty]: Start isEmpty. Operand 32373 states and 46973 transitions. [2018-09-18 10:22:49,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1094 [2018-09-18 10:22:49,052 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:22:49,053 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:22:49,054 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:22:49,054 INFO L82 PathProgramCache]: Analyzing trace with hash -669115988, now seen corresponding path program 1 times [2018-09-18 10:22:49,055 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:22:49,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:22:49,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:22:49,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:22:49,056 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:22:49,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:22:49,513 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 10:22:50,827 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 269 proven. 129 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 10:22:50,827 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:22:50,828 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 10:22:50,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:22:50,837 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:22:51,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:22:51,195 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:22:51,823 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2018-09-18 10:22:51,824 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:22:52,750 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 269 proven. 129 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 10:22:52,772 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 10:22:52,772 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-18 10:22:52,773 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 10:22:52,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 10:22:52,774 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 10:22:52,774 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-18 10:22:52,775 INFO L87 Difference]: Start difference. First operand 32373 states and 46973 transitions. Second operand 5 states. [2018-09-18 10:23:00,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:23:00,176 INFO L93 Difference]: Finished difference Result 81394 states and 123132 transitions. [2018-09-18 10:23:00,177 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 10:23:00,177 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1093 [2018-09-18 10:23:00,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:23:00,371 INFO L225 Difference]: With dead ends: 81394 [2018-09-18 10:23:00,372 INFO L226 Difference]: Without dead ends: 49027 [2018-09-18 10:23:00,441 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2195 GetRequests, 2180 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-09-18 10:23:00,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49027 states. [2018-09-18 10:23:01,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49027 to 48768. [2018-09-18 10:23:01,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48768 states. [2018-09-18 10:23:01,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48768 states to 48768 states and 71071 transitions. [2018-09-18 10:23:01,797 INFO L78 Accepts]: Start accepts. Automaton has 48768 states and 71071 transitions. Word has length 1093 [2018-09-18 10:23:01,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:23:01,797 INFO L480 AbstractCegarLoop]: Abstraction has 48768 states and 71071 transitions. [2018-09-18 10:23:01,797 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 10:23:01,798 INFO L276 IsEmpty]: Start isEmpty. Operand 48768 states and 71071 transitions. [2018-09-18 10:23:01,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1099 [2018-09-18 10:23:01,909 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:23:01,910 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:23:01,910 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:23:01,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1210353988, now seen corresponding path program 1 times [2018-09-18 10:23:01,911 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:23:01,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:23:01,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:23:01,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:23:01,912 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:23:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:23:02,987 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 406 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:23:02,988 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:23:02,988 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 10:23:02,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:23:02,997 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:23:03,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:23:03,315 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:23:04,630 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 406 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:23:04,630 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:23:05,278 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 406 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:23:05,300 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:23:05,300 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 10:23:05,317 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:23:05,318 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:23:06,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:23:06,286 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:23:07,225 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2018-09-18 10:23:07,226 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:23:08,288 INFO L134 CoverageAnalysis]: Checked inductivity of 408 backedges. 277 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2018-09-18 10:23:08,291 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 3 imperfect interpolant sequences. [2018-09-18 10:23:08,292 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 5, 5] total 17 [2018-09-18 10:23:08,292 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 10:23:08,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 10:23:08,294 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 10:23:08,294 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2018-09-18 10:23:08,295 INFO L87 Difference]: Start difference. First operand 48768 states and 71071 transitions. Second operand 5 states. [2018-09-18 10:23:14,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:23:14,924 INFO L93 Difference]: Finished difference Result 135107 states and 204098 transitions. [2018-09-18 10:23:14,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 10:23:14,924 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1098 [2018-09-18 10:23:14,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:23:15,273 INFO L225 Difference]: With dead ends: 135107 [2018-09-18 10:23:15,274 INFO L226 Difference]: Without dead ends: 86345 [2018-09-18 10:23:15,402 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4397 GetRequests, 4380 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2018-09-18 10:23:15,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86345 states. [2018-09-18 10:23:17,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86345 to 86089. [2018-09-18 10:23:17,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86089 states. [2018-09-18 10:23:17,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86089 states to 86089 states and 117988 transitions. [2018-09-18 10:23:17,465 INFO L78 Accepts]: Start accepts. Automaton has 86089 states and 117988 transitions. Word has length 1098 [2018-09-18 10:23:17,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:23:17,466 INFO L480 AbstractCegarLoop]: Abstraction has 86089 states and 117988 transitions. [2018-09-18 10:23:17,466 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 10:23:17,466 INFO L276 IsEmpty]: Start isEmpty. Operand 86089 states and 117988 transitions. [2018-09-18 10:23:17,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1190 [2018-09-18 10:23:17,626 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:23:17,627 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, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-18 10:23:17,627 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:23:17,628 INFO L82 PathProgramCache]: Analyzing trace with hash -2094044450, now seen corresponding path program 1 times [2018-09-18 10:23:17,628 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:23:17,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:23:17,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:23:17,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:23:17,630 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:23:17,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:23:19,095 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 399 proven. 60 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2018-09-18 10:23:19,095 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:23:19,096 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 10:23:19,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:23:19,103 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:23:19,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:23:19,467 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:23:20,277 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 457 proven. 2 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2018-09-18 10:23:20,278 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:23:21,190 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 399 proven. 60 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2018-09-18 10:23:21,213 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:23:21,213 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 10:23:21,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:23:21,230 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:23:21,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:23:22,032 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:23:22,943 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 457 proven. 2 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2018-09-18 10:23:22,943 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:23:23,698 INFO L134 CoverageAnalysis]: Checked inductivity of 707 backedges. 399 proven. 60 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2018-09-18 10:23:23,700 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 10:23:23,701 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 17 [2018-09-18 10:23:23,701 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 10:23:23,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 10:23:23,704 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 10:23:23,704 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2018-09-18 10:23:23,705 INFO L87 Difference]: Start difference. First operand 86089 states and 117988 transitions. Second operand 9 states. [2018-09-18 10:23:45,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:23:45,342 INFO L93 Difference]: Finished difference Result 279386 states and 403677 transitions. [2018-09-18 10:23:45,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-18 10:23:45,342 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1189 [2018-09-18 10:23:45,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:23:46,068 INFO L225 Difference]: With dead ends: 279386 [2018-09-18 10:23:46,068 INFO L226 Difference]: Without dead ends: 194138 [2018-09-18 10:23:46,258 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4800 GetRequests, 4764 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=266, Invalid=1066, Unknown=0, NotChecked=0, Total=1332 [2018-09-18 10:23:46,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194138 states. [2018-09-18 10:23:49,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194138 to 182575. [2018-09-18 10:23:49,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182575 states. [2018-09-18 10:23:49,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182575 states to 182575 states and 228969 transitions. [2018-09-18 10:23:49,726 INFO L78 Accepts]: Start accepts. Automaton has 182575 states and 228969 transitions. Word has length 1189 [2018-09-18 10:23:49,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:23:49,727 INFO L480 AbstractCegarLoop]: Abstraction has 182575 states and 228969 transitions. [2018-09-18 10:23:49,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 10:23:49,727 INFO L276 IsEmpty]: Start isEmpty. Operand 182575 states and 228969 transitions. [2018-09-18 10:23:50,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1200 [2018-09-18 10:23:50,053 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:23:50,054 INFO L376 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-18 10:23:50,054 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:23:50,055 INFO L82 PathProgramCache]: Analyzing trace with hash -1129885522, now seen corresponding path program 1 times [2018-09-18 10:23:50,055 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:23:50,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:23:50,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:23:50,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:23:50,056 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:23:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:23:51,323 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 390 proven. 159 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-09-18 10:23:51,324 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:23:51,324 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 10:23:51,333 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:23:51,333 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:23:51,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:23:51,708 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:23:52,814 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 262 proven. 2 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2018-09-18 10:23:52,814 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:23:53,411 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 390 proven. 159 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-09-18 10:23:53,433 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:23:53,433 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 10:23:53,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:23:53,449 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:23:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:23:54,293 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:23:54,862 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 262 proven. 2 refuted. 0 times theorem prover too weak. 591 trivial. 0 not checked. [2018-09-18 10:23:54,862 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:23:55,453 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 390 proven. 159 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2018-09-18 10:23:55,456 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 10:23:55,457 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-18 10:23:55,457 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 10:23:55,459 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 10:23:55,459 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 10:23:55,459 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-18 10:23:55,459 INFO L87 Difference]: Start difference. First operand 182575 states and 228969 transitions. Second operand 9 states. [2018-09-18 10:24:08,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:24:08,889 INFO L93 Difference]: Finished difference Result 436818 states and 557335 transitions. [2018-09-18 10:24:08,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-18 10:24:08,890 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1199 [2018-09-18 10:24:08,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:24:10,273 INFO L225 Difference]: With dead ends: 436818 [2018-09-18 10:24:10,273 INFO L226 Difference]: Without dead ends: 227926 [2018-09-18 10:24:10,526 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4812 GetRequests, 4793 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2018-09-18 10:24:10,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227926 states. [2018-09-18 10:24:14,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227926 to 226772. [2018-09-18 10:24:14,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 226772 states. [2018-09-18 10:24:14,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226772 states to 226772 states and 269890 transitions. [2018-09-18 10:24:14,754 INFO L78 Accepts]: Start accepts. Automaton has 226772 states and 269890 transitions. Word has length 1199 [2018-09-18 10:24:14,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:24:14,755 INFO L480 AbstractCegarLoop]: Abstraction has 226772 states and 269890 transitions. [2018-09-18 10:24:14,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 10:24:14,755 INFO L276 IsEmpty]: Start isEmpty. Operand 226772 states and 269890 transitions. [2018-09-18 10:24:15,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1512 [2018-09-18 10:24:15,002 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:24:15,003 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:24:15,004 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:24:15,004 INFO L82 PathProgramCache]: Analyzing trace with hash 113841988, now seen corresponding path program 1 times [2018-09-18 10:24:15,004 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:24:15,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:24:15,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:24:15,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:24:15,005 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:24:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:24:22,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1016 backedges. 687 proven. 0 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2018-09-18 10:24:22,209 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 10:24:22,209 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 10:24:22,209 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 10:24:22,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 10:24:22,210 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 10:24:22,210 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 10:24:22,211 INFO L87 Difference]: Start difference. First operand 226772 states and 269890 transitions. Second operand 4 states. [2018-09-18 10:24:30,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:24:30,608 INFO L93 Difference]: Finished difference Result 451810 states and 538164 transitions. [2018-09-18 10:24:30,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 10:24:30,609 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1511 [2018-09-18 10:24:30,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:24:31,261 INFO L225 Difference]: With dead ends: 451810 [2018-09-18 10:24:31,261 INFO L226 Difference]: Without dead ends: 225067 [2018-09-18 10:24:31,560 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 10:24:32,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225067 states. [2018-09-18 10:24:34,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225067 to 220039. [2018-09-18 10:24:34,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220039 states. [2018-09-18 10:24:35,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220039 states to 220039 states and 253103 transitions. [2018-09-18 10:24:35,788 INFO L78 Accepts]: Start accepts. Automaton has 220039 states and 253103 transitions. Word has length 1511 [2018-09-18 10:24:35,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:24:35,789 INFO L480 AbstractCegarLoop]: Abstraction has 220039 states and 253103 transitions. [2018-09-18 10:24:35,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 10:24:35,789 INFO L276 IsEmpty]: Start isEmpty. Operand 220039 states and 253103 transitions. [2018-09-18 10:24:36,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1759 [2018-09-18 10:24:36,021 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:24:36,022 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2018-09-18 10:24:36,023 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:24:36,023 INFO L82 PathProgramCache]: Analyzing trace with hash -694283032, now seen corresponding path program 1 times [2018-09-18 10:24:36,024 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:24:36,024 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:24:36,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:24:36,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:24:36,025 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:24:36,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:24:39,273 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 1255 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:24:39,273 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:24:39,273 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 10:24:39,280 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:24:39,281 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:24:39,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:24:39,769 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:24:41,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 1255 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:24:41,079 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:24:43,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 1255 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:24:43,257 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:24:43,257 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 13 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 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 10:24:43,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:24:43,275 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:24:44,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:24:44,409 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:24:45,780 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 1255 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:24:45,780 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:24:48,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1260 backedges. 1255 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:24:48,042 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 10:24:48,043 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-18 10:24:48,043 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 10:24:48,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 10:24:48,045 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 10:24:48,045 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-18 10:24:48,045 INFO L87 Difference]: Start difference. First operand 220039 states and 253103 transitions. Second operand 9 states. Received shutdown request... [2018-09-18 10:24:53,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-18 10:24:53,003 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 10:24:53,009 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 10:24:53,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 10:24:53 BoogieIcfgContainer [2018-09-18 10:24:53,009 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 10:24:53,010 INFO L168 Benchmark]: Toolchain (without parser) took 211079.88 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 1.7 GB in the end (delta: -247.4 MB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2018-09-18 10:24:53,012 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 10:24:53,012 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2252.50 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: 214.0 MB). Peak memory consumption was 214.0 MB. Max. memory is 7.1 GB. [2018-09-18 10:24:53,013 INFO L168 Benchmark]: Boogie Procedure Inliner took 132.37 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 10:24:53,014 INFO L168 Benchmark]: Boogie Preprocessor took 674.20 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 842.5 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 85.0 MB. Max. memory is 7.1 GB. [2018-09-18 10:24:53,015 INFO L168 Benchmark]: RCFGBuilder took 10522.08 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 192.4 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -172.0 MB). Peak memory consumption was 728.1 MB. Max. memory is 7.1 GB. [2018-09-18 10:24:53,016 INFO L168 Benchmark]: TraceAbstraction took 197489.29 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 1.7 GB in the end (delta: 775.9 MB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. [2018-09-18 10:24:53,021 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 2252.50 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: 214.0 MB). Peak memory consumption was 214.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 132.37 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 674.20 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 842.5 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 85.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10522.08 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 192.4 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -172.0 MB). Peak memory consumption was 728.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 197489.29 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 1.7 GB in the end (delta: 775.9 MB). Peak memory consumption was 3.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 4772]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 4772). Cancelled while BasicCegarLoop was constructing difference of abstraction (220039states) and FLOYD_HOARE automaton (currently 12 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (11414 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 907 locations, 1 error locations. TIMEOUT Result, 197.4s OverallTime, 11 OverallIterations, 7 TraceHistogramMax, 117.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4212 SDtfs, 44156 SDslu, 2375 SDs, 0 SdLazy, 71750 SolverSat, 23518 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 82.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29231 GetRequests, 29039 SyntacticMatches, 34 SemanticMatches, 158 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1074 ImplicationChecksByTransitivity, 10.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226772occurred in iteration=9, 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: 18.0s AutomataMinimizationTime, 10 MinimizatonAttempts, 19109 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.5s SsaConstructionTime, 6.7s SatisfiabilityAnalysisTime, 34.5s InterpolantComputationTime, 26949 NumberOfCodeBlocks, 26949 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 41430 ConstructedInterpolants, 0 QuantifiedInterpolants, 104962698 SizeOfPredicates, 11 NumberOfNonLiveVariables, 20036 ConjunctsInSsa, 96 ConjunctsInUnsatCore, 35 InterpolantComputations, 9 PerfectInterpolantSequences, 18988/19993 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_label23_true-unreach-call_false-termination.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_10-24-53-036.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem04_label23_true-unreach-call_false-termination.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_10-24-53-036.csv Completed graceful shutdown