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_label05_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 10:19:18,749 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 10:19:18,751 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 10:19:18,765 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 10:19:18,765 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 10:19:18,766 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 10:19:18,770 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 10:19:18,773 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 10:19:18,776 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 10:19:18,777 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 10:19:18,785 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 10:19:18,786 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 10:19:18,787 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 10:19:18,788 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 10:19:18,792 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 10:19:18,793 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 10:19:18,794 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 10:19:18,797 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 10:19:18,802 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 10:19:18,804 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 10:19:18,805 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 10:19:18,809 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 10:19:18,813 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 10:19:18,814 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 10:19:18,815 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 10:19:18,815 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 10:19:18,816 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 10:19:18,817 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 10:19:18,818 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 10:19:18,820 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 10:19:18,821 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 10:19:18,821 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 10:19:18,822 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 10:19:18,822 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 10:19:18,823 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 10:19:18,823 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 10:19:18,825 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-18 10:19:18,846 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 10:19:18,846 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 10:19:18,848 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 10:19:18,848 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 10:19:18,848 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 10:19:18,848 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 10:19:18,848 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 10:19:18,849 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 10:19:18,849 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 10:19:18,849 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 10:19:18,849 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 10:19:18,849 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 10:19:18,850 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 10:19:18,850 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 10:19:18,850 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 10:19:18,851 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 10:19:18,852 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 10:19:18,852 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 10:19:18,852 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 10:19:18,852 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 10:19:18,852 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 10:19:18,853 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 10:19:18,853 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 10:19:18,853 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 10:19:18,853 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 10:19:18,853 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 10:19:18,855 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 10:19:18,855 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 10:19:18,855 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 10:19:18,855 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 10:19:18,855 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 10:19:18,856 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 10:19:18,856 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 10:19:18,856 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 10:19:18,916 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 10:19:18,930 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 10:19:18,937 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 10:19:18,939 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 10:19:18,940 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 10:19:18,941 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label05_true-unreach-call.c [2018-09-18 10:19:19,323 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efe38b558/dc53bc04611e43aabf67b407548b1a06/FLAGf6fb14c9b [2018-09-18 10:19:19,764 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 10:19:19,765 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label05_true-unreach-call.c [2018-09-18 10:19:19,803 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efe38b558/dc53bc04611e43aabf67b407548b1a06/FLAGf6fb14c9b [2018-09-18 10:19:19,819 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/efe38b558/dc53bc04611e43aabf67b407548b1a06 [2018-09-18 10:19:19,831 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 10:19:19,835 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 10:19:19,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 10:19:19,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 10:19:19,844 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 10:19:19,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 10:19:19" (1/1) ... [2018-09-18 10:19:19,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@409c9948 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:19, skipping insertion in model container [2018-09-18 10:19:19,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 10:19:19" (1/1) ... [2018-09-18 10:19:19,863 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 10:19:21,156 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 10:19:21,175 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 10:19:21,833 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 10:19:21,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:21 WrapperNode [2018-09-18 10:19:21,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 10:19:21,971 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 10:19:21,971 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 10:19:21,972 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 10:19:21,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:21" (1/1) ... [2018-09-18 10:19:22,040 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:21" (1/1) ... [2018-09-18 10:19:22,118 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 10:19:22,119 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 10:19:22,119 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 10:19:22,119 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 10:19:22,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:21" (1/1) ... [2018-09-18 10:19:22,550 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:21" (1/1) ... [2018-09-18 10:19:22,570 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:21" (1/1) ... [2018-09-18 10:19:22,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:21" (1/1) ... [2018-09-18 10:19:22,676 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:21" (1/1) ... [2018-09-18 10:19:22,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:21" (1/1) ... [2018-09-18 10:19:22,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:21" (1/1) ... [2018-09-18 10:19:22,763 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 10:19:22,763 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 10:19:22,763 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 10:19:22,764 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 10:19:22,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 10:19:22,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 10:19:22,844 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 10:19:22,844 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 10:19:22,844 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 10:19:22,845 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 10:19:22,845 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 10:19:22,845 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 10:19:22,845 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 10:19:22,845 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 10:19:22,845 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 10:19:22,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 10:19:22,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 10:19:22,846 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 10:19:22,846 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 10:19:33,114 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 10:19:33,114 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 10:19:33 BoogieIcfgContainer [2018-09-18 10:19:33,115 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 10:19:33,116 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 10:19:33,116 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 10:19:33,119 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 10:19:33,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 10:19:19" (1/3) ... [2018-09-18 10:19:33,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37f048c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 10:19:33, skipping insertion in model container [2018-09-18 10:19:33,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 10:19:21" (2/3) ... [2018-09-18 10:19:33,121 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37f048c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 10:19:33, skipping insertion in model container [2018-09-18 10:19:33,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 10:19:33" (3/3) ... [2018-09-18 10:19:33,124 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label05_true-unreach-call.c [2018-09-18 10:19:33,134 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 10:19:33,145 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 10:19:33,217 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 10:19:33,218 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 10:19:33,218 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 10:19:33,218 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 10:19:33,218 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 10:19:33,218 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 10:19:33,218 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 10:19:33,218 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 10:19:33,219 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 10:19:33,268 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states. [2018-09-18 10:19:33,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 797 [2018-09-18 10:19:33,333 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:19:33,335 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] [2018-09-18 10:19:33,336 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:19:33,343 INFO L82 PathProgramCache]: Analyzing trace with hash -975926050, now seen corresponding path program 1 times [2018-09-18 10:19:33,346 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:19:33,405 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:19:33,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:19:33,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:19:33,406 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:19:33,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:19:35,521 WARN L178 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 10:19:36,409 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:19:36,411 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 10:19:36,412 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 10:19:36,412 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 10:19:36,419 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 10:19:36,432 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 10:19:36,433 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 10:19:36,436 INFO L87 Difference]: Start difference. First operand 907 states. Second operand 3 states. [2018-09-18 10:19:43,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:19:43,034 INFO L93 Difference]: Finished difference Result 2647 states and 5102 transitions. [2018-09-18 10:19:43,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 10:19:43,036 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 796 [2018-09-18 10:19:43,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:19:43,078 INFO L225 Difference]: With dead ends: 2647 [2018-09-18 10:19:43,078 INFO L226 Difference]: Without dead ends: 1738 [2018-09-18 10:19:43,089 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 10:19:43,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2018-09-18 10:19:43,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1738. [2018-09-18 10:19:43,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1738 states. [2018-09-18 10:19:43,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 3286 transitions. [2018-09-18 10:19:43,244 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 3286 transitions. Word has length 796 [2018-09-18 10:19:43,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:19:43,250 INFO L480 AbstractCegarLoop]: Abstraction has 1738 states and 3286 transitions. [2018-09-18 10:19:43,251 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 10:19:43,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 3286 transitions. [2018-09-18 10:19:43,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 806 [2018-09-18 10:19:43,281 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:19:43,283 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] [2018-09-18 10:19:43,284 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:19:43,285 INFO L82 PathProgramCache]: Analyzing trace with hash -54833475, now seen corresponding path program 1 times [2018-09-18 10:19:43,285 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:19:43,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:19:43,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:19:43,287 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:19:43,287 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:19:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:19:44,953 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:19:44,954 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 10:19:44,954 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 10:19:44,954 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 10:19:44,957 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 10:19:44,957 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 10:19:44,957 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 10:19:44,958 INFO L87 Difference]: Start difference. First operand 1738 states and 3286 transitions. Second operand 4 states. [2018-09-18 10:19:54,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:19:54,526 INFO L93 Difference]: Finished difference Result 6810 states and 13144 transitions. [2018-09-18 10:19:54,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 10:19:54,526 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 805 [2018-09-18 10:19:54,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:19:54,558 INFO L225 Difference]: With dead ends: 6810 [2018-09-18 10:19:54,559 INFO L226 Difference]: Without dead ends: 5078 [2018-09-18 10:19:54,567 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 10:19:54,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5078 states. [2018-09-18 10:19:54,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5078 to 5078. [2018-09-18 10:19:54,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5078 states. [2018-09-18 10:19:54,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5078 states to 5078 states and 8456 transitions. [2018-09-18 10:19:54,720 INFO L78 Accepts]: Start accepts. Automaton has 5078 states and 8456 transitions. Word has length 805 [2018-09-18 10:19:54,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:19:54,723 INFO L480 AbstractCegarLoop]: Abstraction has 5078 states and 8456 transitions. [2018-09-18 10:19:54,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 10:19:54,724 INFO L276 IsEmpty]: Start isEmpty. Operand 5078 states and 8456 transitions. [2018-09-18 10:19:54,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 824 [2018-09-18 10:19:54,747 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:19:54,748 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 10:19:54,748 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:19:54,749 INFO L82 PathProgramCache]: Analyzing trace with hash -793552359, now seen corresponding path program 1 times [2018-09-18 10:19:54,749 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:19:54,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:19:54,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:19:54,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:19:54,751 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:19:54,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:19:55,661 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 10:19:56,684 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-09-18 10:19:56,685 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:19:56,685 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 10:19:56,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:19:56,698 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:19:56,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:19:57,071 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:19:57,809 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:19:57,809 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:19:59,035 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:19:59,059 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 10:19:59,059 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 5 [2018-09-18 10:19:59,059 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 10:19:59,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 10:19:59,063 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 10:19:59,063 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 10:19:59,063 INFO L87 Difference]: Start difference. First operand 5078 states and 8456 transitions. Second operand 3 states. [2018-09-18 10:20:05,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:20:05,219 INFO L93 Difference]: Finished difference Result 15190 states and 25723 transitions. [2018-09-18 10:20:05,220 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 10:20:05,220 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 823 [2018-09-18 10:20:05,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:20:05,274 INFO L225 Difference]: With dead ends: 15190 [2018-09-18 10:20:05,275 INFO L226 Difference]: Without dead ends: 10118 [2018-09-18 10:20:05,292 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1656 GetRequests, 1642 SyntacticMatches, 11 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 10:20:05,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10118 states. [2018-09-18 10:20:05,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10118 to 10118. [2018-09-18 10:20:05,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10118 states. [2018-09-18 10:20:05,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10118 states to 10118 states and 16263 transitions. [2018-09-18 10:20:05,564 INFO L78 Accepts]: Start accepts. Automaton has 10118 states and 16263 transitions. Word has length 823 [2018-09-18 10:20:05,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:20:05,566 INFO L480 AbstractCegarLoop]: Abstraction has 10118 states and 16263 transitions. [2018-09-18 10:20:05,566 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 10:20:05,567 INFO L276 IsEmpty]: Start isEmpty. Operand 10118 states and 16263 transitions. [2018-09-18 10:20:05,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 848 [2018-09-18 10:20:05,603 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:20:05,604 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 10:20:05,604 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:20:05,605 INFO L82 PathProgramCache]: Analyzing trace with hash 183743465, now seen corresponding path program 1 times [2018-09-18 10:20:05,605 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:20:05,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:20:05,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:20:05,607 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:20:05,607 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:20:05,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:20:05,962 WARN L178 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 10:20:06,980 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:20:06,980 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 10:20:06,980 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 10:20:06,981 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 10:20:06,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 10:20:06,982 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 10:20:06,982 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 10:20:06,983 INFO L87 Difference]: Start difference. First operand 10118 states and 16263 transitions. Second operand 6 states. [2018-09-18 10:20:14,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:20:14,384 INFO L93 Difference]: Finished difference Result 30686 states and 51550 transitions. [2018-09-18 10:20:14,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 10:20:14,387 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 847 [2018-09-18 10:20:14,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:20:14,514 INFO L225 Difference]: With dead ends: 30686 [2018-09-18 10:20:14,514 INFO L226 Difference]: Without dead ends: 20574 [2018-09-18 10:20:14,544 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 10:20:14,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20574 states. [2018-09-18 10:20:15,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20574 to 20490. [2018-09-18 10:20:15,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20490 states. [2018-09-18 10:20:15,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20490 states to 20490 states and 31961 transitions. [2018-09-18 10:20:15,113 INFO L78 Accepts]: Start accepts. Automaton has 20490 states and 31961 transitions. Word has length 847 [2018-09-18 10:20:15,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:20:15,113 INFO L480 AbstractCegarLoop]: Abstraction has 20490 states and 31961 transitions. [2018-09-18 10:20:15,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 10:20:15,114 INFO L276 IsEmpty]: Start isEmpty. Operand 20490 states and 31961 transitions. [2018-09-18 10:20:15,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 880 [2018-09-18 10:20:15,179 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:20:15,180 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 10:20:15,180 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:20:15,181 INFO L82 PathProgramCache]: Analyzing trace with hash 260438334, now seen corresponding path program 1 times [2018-09-18 10:20:15,181 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:20:15,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:20:15,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:20:15,185 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:20:15,185 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:20:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:20:15,519 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-09-18 10:20:16,719 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 77 proven. 27 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 10:20:16,720 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:20:16,720 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 10:20:16,732 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:20:16,732 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:20:17,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:20:17,036 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:20:17,772 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2018-09-18 10:20:17,772 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:20:18,466 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 77 proven. 27 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 10:20:18,488 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 10:20:18,488 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 12 [2018-09-18 10:20:18,488 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 10:20:18,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 10:20:18,490 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 10:20:18,490 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2018-09-18 10:20:18,491 INFO L87 Difference]: Start difference. First operand 20490 states and 31961 transitions. Second operand 5 states. [2018-09-18 10:20:26,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:20:26,717 INFO L93 Difference]: Finished difference Result 62175 states and 101388 transitions. [2018-09-18 10:20:26,718 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 10:20:26,719 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 879 [2018-09-18 10:20:26,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:20:26,911 INFO L225 Difference]: With dead ends: 62175 [2018-09-18 10:20:26,911 INFO L226 Difference]: Without dead ends: 41691 [2018-09-18 10:20:26,983 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1765 GetRequests, 1753 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-09-18 10:20:27,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41691 states. [2018-09-18 10:20:27,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41691 to 41455. [2018-09-18 10:20:27,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41455 states. [2018-09-18 10:20:27,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41455 states to 41455 states and 59364 transitions. [2018-09-18 10:20:27,968 INFO L78 Accepts]: Start accepts. Automaton has 41455 states and 59364 transitions. Word has length 879 [2018-09-18 10:20:27,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:20:27,969 INFO L480 AbstractCegarLoop]: Abstraction has 41455 states and 59364 transitions. [2018-09-18 10:20:27,969 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 10:20:27,969 INFO L276 IsEmpty]: Start isEmpty. Operand 41455 states and 59364 transitions. [2018-09-18 10:20:28,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 916 [2018-09-18 10:20:28,067 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:20:28,068 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 10:20:28,068 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:20:28,069 INFO L82 PathProgramCache]: Analyzing trace with hash -520907600, now seen corresponding path program 1 times [2018-09-18 10:20:28,069 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:20:28,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:20:28,070 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:20:28,070 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:20:28,070 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:20:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:20:29,528 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 131 proven. 28 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-09-18 10:20:29,528 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:20:29,528 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 10:20:29,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:20:29,549 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:20:29,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:20:29,868 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:20:30,461 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 163 proven. 2 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-09-18 10:20:30,462 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:20:31,219 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 154 proven. 31 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-09-18 10:20:31,242 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:20:31,242 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 5 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 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 10:20:31,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:20:31,258 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:20:31,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:20:31,889 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:20:33,330 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 163 proven. 2 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2018-09-18 10:20:33,331 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:20:33,538 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-18 10:20:34,335 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 154 proven. 31 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-09-18 10:20:34,338 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 10:20:34,339 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-09-18 10:20:34,339 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 10:20:34,341 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 10:20:34,341 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 10:20:34,342 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-09-18 10:20:34,343 INFO L87 Difference]: Start difference. First operand 41455 states and 59364 transitions. Second operand 9 states. [2018-09-18 10:20:48,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:20:48,975 INFO L93 Difference]: Finished difference Result 85141 states and 127290 transitions. [2018-09-18 10:20:48,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-09-18 10:20:48,977 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 915 [2018-09-18 10:20:48,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:20:49,132 INFO L225 Difference]: With dead ends: 85141 [2018-09-18 10:20:49,132 INFO L226 Difference]: Without dead ends: 43692 [2018-09-18 10:20:49,205 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3716 GetRequests, 3675 SyntacticMatches, 2 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 347 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=346, Invalid=1294, Unknown=0, NotChecked=0, Total=1640 [2018-09-18 10:20:49,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43692 states. [2018-09-18 10:20:50,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43692 to 43180. [2018-09-18 10:20:50,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43180 states. [2018-09-18 10:20:50,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43180 states to 43180 states and 57720 transitions. [2018-09-18 10:20:50,157 INFO L78 Accepts]: Start accepts. Automaton has 43180 states and 57720 transitions. Word has length 915 [2018-09-18 10:20:50,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:20:50,158 INFO L480 AbstractCegarLoop]: Abstraction has 43180 states and 57720 transitions. [2018-09-18 10:20:50,158 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 10:20:50,158 INFO L276 IsEmpty]: Start isEmpty. Operand 43180 states and 57720 transitions. [2018-09-18 10:20:50,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 999 [2018-09-18 10:20:50,226 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:20:50,227 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 10:20:50,227 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:20:50,228 INFO L82 PathProgramCache]: Analyzing trace with hash -524042810, now seen corresponding path program 1 times [2018-09-18 10:20:50,228 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:20:50,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:20:50,229 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:20:50,229 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:20:50,229 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:20:50,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:20:50,951 WARN L178 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-18 10:20:51,242 WARN L178 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-18 10:20:52,130 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 245 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 10:20:52,130 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:20:52,131 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 10:20:52,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:20:52,140 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:20:52,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:20:52,441 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:20:53,125 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 199 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-09-18 10:20:53,125 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:20:54,121 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 199 proven. 0 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2018-09-18 10:20:54,144 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 10:20:54,144 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-09-18 10:20:54,145 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 10:20:54,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 10:20:54,146 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 10:20:54,146 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-09-18 10:20:54,146 INFO L87 Difference]: Start difference. First operand 43180 states and 57720 transitions. Second operand 3 states. [2018-09-18 10:20:59,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:20:59,686 INFO L93 Difference]: Finished difference Result 120512 states and 162444 transitions. [2018-09-18 10:20:59,686 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 10:20:59,686 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 998 [2018-09-18 10:20:59,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:20:59,982 INFO L225 Difference]: With dead ends: 120512 [2018-09-18 10:20:59,982 INFO L226 Difference]: Without dead ends: 77338 [2018-09-18 10:21:00,088 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2002 GetRequests, 1991 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-09-18 10:21:00,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77338 states. [2018-09-18 10:21:01,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77338 to 71462. [2018-09-18 10:21:01,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71462 states. [2018-09-18 10:21:01,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71462 states to 71462 states and 92323 transitions. [2018-09-18 10:21:01,917 INFO L78 Accepts]: Start accepts. Automaton has 71462 states and 92323 transitions. Word has length 998 [2018-09-18 10:21:01,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:21:01,919 INFO L480 AbstractCegarLoop]: Abstraction has 71462 states and 92323 transitions. [2018-09-18 10:21:01,919 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 10:21:01,919 INFO L276 IsEmpty]: Start isEmpty. Operand 71462 states and 92323 transitions. [2018-09-18 10:21:02,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1001 [2018-09-18 10:21:02,019 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:21:02,020 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 10:21:02,020 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:21:02,021 INFO L82 PathProgramCache]: Analyzing trace with hash -753522851, now seen corresponding path program 1 times [2018-09-18 10:21:02,021 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:21:02,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:21:02,022 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:21:02,022 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:21:02,022 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:21:02,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:21:02,387 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 10:21:03,278 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 201 proven. 83 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-09-18 10:21:03,279 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:21:03,279 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 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 10:21:03,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:21:03,288 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:21:03,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:21:03,593 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:21:04,440 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 198 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-09-18 10:21:04,441 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:21:04,975 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 225 proven. 62 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2018-09-18 10:21:04,996 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:21:04,996 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 8 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 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 10:21:05,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:21:05,013 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:21:05,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:21:05,707 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:21:07,027 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2018-09-18 10:21:07,028 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:21:07,561 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 203 proven. 80 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2018-09-18 10:21:07,565 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2018-09-18 10:21:07,566 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5, 5, 5] total 13 [2018-09-18 10:21:07,566 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 10:21:07,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 10:21:07,568 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 10:21:07,568 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-18 10:21:07,568 INFO L87 Difference]: Start difference. First operand 71462 states and 92323 transitions. Second operand 5 states. [2018-09-18 10:21:14,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:21:14,752 INFO L93 Difference]: Finished difference Result 175383 states and 228298 transitions. [2018-09-18 10:21:14,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 10:21:14,752 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1000 [2018-09-18 10:21:14,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:21:15,104 INFO L225 Difference]: With dead ends: 175383 [2018-09-18 10:21:15,104 INFO L226 Difference]: Without dead ends: 103927 [2018-09-18 10:21:15,227 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4008 GetRequests, 3987 SyntacticMatches, 9 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-09-18 10:21:15,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103927 states. [2018-09-18 10:21:16,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103927 to 102117. [2018-09-18 10:21:16,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102117 states. [2018-09-18 10:21:16,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102117 states to 102117 states and 128783 transitions. [2018-09-18 10:21:16,893 INFO L78 Accepts]: Start accepts. Automaton has 102117 states and 128783 transitions. Word has length 1000 [2018-09-18 10:21:16,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:21:16,894 INFO L480 AbstractCegarLoop]: Abstraction has 102117 states and 128783 transitions. [2018-09-18 10:21:16,894 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 10:21:16,894 INFO L276 IsEmpty]: Start isEmpty. Operand 102117 states and 128783 transitions. [2018-09-18 10:21:16,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1005 [2018-09-18 10:21:16,976 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:21:16,976 INFO L376 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 10:21:16,977 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:21:16,977 INFO L82 PathProgramCache]: Analyzing trace with hash -892411873, now seen corresponding path program 1 times [2018-09-18 10:21:16,977 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:21:16,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:21:16,978 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:21:16,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:21:16,978 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:21:17,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:21:18,397 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 205 proven. 103 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 10:21:18,397 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:21:18,397 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 10:21:18,405 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:21:18,405 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:21:18,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:21:18,707 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:21:19,455 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 199 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-09-18 10:21:19,455 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:21:20,595 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 222 proven. 73 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-09-18 10:21:20,617 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:21:20,617 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 10 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 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 10:21:20,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:21:20,637 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:21:21,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:21:21,322 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:21:22,368 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 199 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-09-18 10:21:22,368 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:21:22,824 INFO L134 CoverageAnalysis]: Checked inductivity of 313 backedges. 222 proven. 73 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2018-09-18 10:21:22,827 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 10:21:22,828 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5, 5, 5] total 18 [2018-09-18 10:21:22,828 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 10:21:22,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-18 10:21:22,830 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-18 10:21:22,830 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-09-18 10:21:22,830 INFO L87 Difference]: Start difference. First operand 102117 states and 128783 transitions. Second operand 14 states. [2018-09-18 10:22:07,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:22:07,808 INFO L93 Difference]: Finished difference Result 393222 states and 543800 transitions. [2018-09-18 10:22:07,808 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2018-09-18 10:22:07,808 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 1004 [2018-09-18 10:22:07,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:22:09,287 INFO L225 Difference]: With dead ends: 393222 [2018-09-18 10:22:09,287 INFO L226 Difference]: Without dead ends: 291111 [2018-09-18 10:22:09,494 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4124 GetRequests, 4052 SyntacticMatches, 8 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1464 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=843, Invalid=3447, Unknown=0, NotChecked=0, Total=4290 [2018-09-18 10:22:09,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291111 states. [2018-09-18 10:22:14,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291111 to 287162. [2018-09-18 10:22:14,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 287162 states. [2018-09-18 10:22:15,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287162 states to 287162 states and 356150 transitions. [2018-09-18 10:22:15,156 INFO L78 Accepts]: Start accepts. Automaton has 287162 states and 356150 transitions. Word has length 1004 [2018-09-18 10:22:15,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:22:15,157 INFO L480 AbstractCegarLoop]: Abstraction has 287162 states and 356150 transitions. [2018-09-18 10:22:15,157 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-18 10:22:15,157 INFO L276 IsEmpty]: Start isEmpty. Operand 287162 states and 356150 transitions. [2018-09-18 10:22:15,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1057 [2018-09-18 10:22:15,470 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 10:22:15,471 INFO L376 BasicCegarLoop]: trace histogram [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, 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] [2018-09-18 10:22:15,471 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 10:22:15,471 INFO L82 PathProgramCache]: Analyzing trace with hash 1612777527, now seen corresponding path program 1 times [2018-09-18 10:22:15,472 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 10:22:15,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:22:15,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:22:15,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 10:22:15,473 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 10:22:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:22:18,246 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 238 proven. 55 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2018-09-18 10:22:18,246 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 10:22:18,246 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 10:22:18,254 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 10:22:18,254 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 10:22:23,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 10:22:23,285 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 10:22:24,095 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2018-09-18 10:22:24,096 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 10:22:24,758 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 257 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2018-09-18 10:22:24,780 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 10:22:24,781 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 10 [2018-09-18 10:22:24,781 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 10:22:24,784 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 10:22:24,784 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 10:22:24,784 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-18 10:22:24,784 INFO L87 Difference]: Start difference. First operand 287162 states and 356150 transitions. Second operand 3 states. [2018-09-18 10:22:32,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 10:22:32,875 INFO L93 Difference]: Finished difference Result 572567 states and 710701 transitions. [2018-09-18 10:22:32,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 10:22:32,875 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1056 [2018-09-18 10:22:32,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 10:22:32,877 INFO L225 Difference]: With dead ends: 572567 [2018-09-18 10:22:32,877 INFO L226 Difference]: Without dead ends: 0 [2018-09-18 10:22:33,359 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2126 GetRequests, 2116 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-09-18 10:22:33,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-18 10:22:33,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-18 10:22:33,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-18 10:22:33,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-18 10:22:33,363 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1056 [2018-09-18 10:22:33,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 10:22:33,363 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-18 10:22:33,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 10:22:33,363 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-18 10:22:33,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-18 10:22:33,367 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-18 10:22:36,019 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:36,020 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:36,021 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:36,041 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:36,042 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:36,042 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:37,662 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:37,668 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:37,728 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:37,734 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:37,739 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:37,742 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:37,750 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:37,752 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:37,755 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:37,814 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:37,828 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:37,847 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:37,851 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:37,861 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:37,895 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:37,919 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:37,927 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:37,941 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:37,947 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:37,949 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:37,960 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:37,999 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,045 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,047 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,052 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,058 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,072 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,132 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,168 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,193 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,210 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,237 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,240 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,242 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,279 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,327 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,375 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,420 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,482 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,490 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,572 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,581 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,616 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,625 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,642 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,694 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,704 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,714 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,734 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,740 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,751 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,766 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,795 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,801 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,807 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,821 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,836 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,857 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,868 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,949 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,951 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,952 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:38,999 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:39,000 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:39,037 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:39,102 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:39,139 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:39,170 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:39,178 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:39,186 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:39,253 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:39,314 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:39,331 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:39,423 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:39,431 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:39,489 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:39,503 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:39,564 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:39,638 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:39,699 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:39,714 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:39,764 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:39,825 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:40,168 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:40,201 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:40,248 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:40,490 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:40,524 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:40,571 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:40,607 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:40,637 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:40,695 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:40,724 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:40,726 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:40,727 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:40,795 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:40,806 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:40,807 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:40,808 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:40,809 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:40,912 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:40,932 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:40,953 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:41,034 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:41,050 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:41,131 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:41,205 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:41,340 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:41,350 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:41,437 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:41,461 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:41,519 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:41,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:41,586 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:41,598 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:41,656 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:41,801 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:41,813 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:41,838 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:41,852 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:41,854 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:41,854 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:41,929 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:42,081 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:42,106 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:42,131 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:42,216 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:42,276 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:42,312 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:42,362 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:42,400 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:42,413 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:42,425 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:42,475 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:42,489 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:42,608 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:42,620 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:42,633 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:42,645 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:42,861 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:42,886 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:42,911 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:42,941 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:42,982 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:43,023 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:43,060 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:43,074 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:43,074 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:43,160 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:43,173 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:43,414 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:43,426 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:43,542 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:43,605 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:43,644 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:43,712 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:43,725 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:43,726 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:43,726 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:43,833 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:43,848 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:43,849 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:43,875 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:44,073 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:44,158 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:44,213 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:44,226 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:44,241 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:44,254 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:44,294 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:44,349 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:44,857 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:44,902 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:45,006 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:45,007 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:45,008 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:45,009 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:45,009 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:45,084 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:45,130 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:45,228 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:45,468 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:45,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:45,694 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:45,741 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:45,757 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:45,853 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:45,963 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:45,994 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:46,304 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:46,321 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:46,338 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:46,339 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:46,388 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:46,487 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:46,504 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:46,620 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:46,662 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:46,695 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:46,801 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:46,949 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:46,965 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:47,015 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:47,110 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:47,227 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:47,344 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:47,345 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:47,346 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:47,347 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:47,347 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:47,518 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:47,672 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:47,755 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:47,756 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:47,757 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:47,758 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:47,793 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 10:22:47,867 WARN L250 erpolLogProxyWrapper]: Already inconsistent. Received shutdown request... [2018-09-18 10:22:47,891 INFO L256 ToolchainWalker]: Toolchain cancelled while executing plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction. Reason: Timeout or Toolchain cancelled by user [2018-09-18 10:22:47,892 INFO L168 Benchmark]: Toolchain (without parser) took 208060.67 ms. Allocated memory was 1.5 GB in the beginning and 4.7 GB in the end (delta: 3.2 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -710.7 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2018-09-18 10:22:47,894 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 10:22:47,894 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2134.94 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: 222.0 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. [2018-09-18 10:22:47,895 INFO L168 Benchmark]: Boogie Procedure Inliner took 147.20 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 10:22:47,896 INFO L168 Benchmark]: Boogie Preprocessor took 644.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 823.7 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. [2018-09-18 10:22:47,897 INFO L168 Benchmark]: RCFGBuilder took 10351.50 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 195.6 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -191.6 MB). Peak memory consumption was 735.5 MB. Max. memory is 7.1 GB. [2018-09-18 10:22:47,898 INFO L168 Benchmark]: TraceAbstraction took 194776.12 ms. Allocated memory was 2.5 GB in the beginning and 4.7 GB in the end (delta: 2.2 GB). Free memory was 2.4 GB in the beginning and 2.1 GB in the end (delta: 316.1 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. [2018-09-18 10:22:47,903 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2134.94 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: 222.0 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 147.20 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 644.25 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 823.7 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10351.50 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 195.6 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -191.6 MB). Peak memory consumption was 735.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 194776.12 ms. Allocated memory was 2.5 GB in the beginning and 4.7 GB in the end (delta: 2.2 GB). Free memory was 2.4 GB in the beginning and 2.1 GB in the end (delta: 316.1 MB). Peak memory consumption was 2.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4706]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - TimeoutResult: Timeout (de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction) Toolchain cancelled while SimplifyDDAWithTimeout was simplifying term of DAG size 1900. RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem04_label05_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_10-22-47-922.csv Completed graceful shutdown