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_label34_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 16:12:40,729 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 16:12:40,731 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 16:12:40,743 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 16:12:40,743 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 16:12:40,744 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 16:12:40,746 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 16:12:40,747 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 16:12:40,749 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 16:12:40,750 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 16:12:40,751 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 16:12:40,751 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 16:12:40,752 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 16:12:40,753 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 16:12:40,754 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 16:12:40,755 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 16:12:40,756 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 16:12:40,758 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 16:12:40,760 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 16:12:40,761 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 16:12:40,762 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 16:12:40,766 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 16:12:40,773 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 16:12:40,773 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 16:12:40,774 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 16:12:40,775 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 16:12:40,778 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 16:12:40,779 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 16:12:40,784 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 16:12:40,785 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 16:12:40,785 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 16:12:40,786 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 16:12:40,786 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 16:12:40,786 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 16:12:40,789 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 16:12:40,790 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 16:12:40,790 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-14 16:12:40,816 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 16:12:40,816 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 16:12:40,817 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 16:12:40,817 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 16:12:40,817 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 16:12:40,818 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 16:12:40,818 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 16:12:40,818 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 16:12:40,818 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 16:12:40,818 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 16:12:40,819 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 16:12:40,819 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 16:12:40,820 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 16:12:40,820 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 16:12:40,820 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 16:12:40,820 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 16:12:40,820 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 16:12:40,820 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 16:12:40,821 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 16:12:40,821 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 16:12:40,821 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 16:12:40,821 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 16:12:40,821 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 16:12:40,822 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 16:12:40,822 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 16:12:40,822 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 16:12:40,822 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 16:12:40,822 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 16:12:40,823 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 16:12:40,823 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 16:12:40,823 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 16:12:40,823 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 16:12:40,823 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 16:12:40,867 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 16:12:40,882 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 16:12:40,887 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 16:12:40,889 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 16:12:40,890 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 16:12:40,890 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label34_true-unreach-call.c [2018-09-14 16:12:41,267 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d467be773/b4e7d07546024ff3a3d8af06b6457184/FLAG659556455 [2018-09-14 16:12:41,733 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 16:12:41,734 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label34_true-unreach-call.c [2018-09-14 16:12:41,770 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d467be773/b4e7d07546024ff3a3d8af06b6457184/FLAG659556455 [2018-09-14 16:12:41,792 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d467be773/b4e7d07546024ff3a3d8af06b6457184 [2018-09-14 16:12:41,807 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 16:12:41,810 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 16:12:41,811 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 16:12:41,811 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 16:12:41,818 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 16:12:41,819 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 04:12:41" (1/1) ... [2018-09-14 16:12:41,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@600f763c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:12:41, skipping insertion in model container [2018-09-14 16:12:41,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 04:12:41" (1/1) ... [2018-09-14 16:12:41,838 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 16:12:43,247 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 16:12:43,271 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 16:12:43,902 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 16:12:44,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:12:44 WrapperNode [2018-09-14 16:12:44,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 16:12:44,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 16:12:44,049 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 16:12:44,049 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 16:12:44,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:12:44" (1/1) ... [2018-09-14 16:12:44,133 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:12:44" (1/1) ... [2018-09-14 16:12:44,209 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 16:12:44,210 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 16:12:44,210 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 16:12:44,210 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 16:12:44,614 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:12:44" (1/1) ... [2018-09-14 16:12:44,614 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:12:44" (1/1) ... [2018-09-14 16:12:44,642 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:12:44" (1/1) ... [2018-09-14 16:12:44,643 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:12:44" (1/1) ... [2018-09-14 16:12:44,730 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:12:44" (1/1) ... [2018-09-14 16:12:44,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:12:44" (1/1) ... [2018-09-14 16:12:44,796 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:12:44" (1/1) ... [2018-09-14 16:12:44,823 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 16:12:44,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 16:12:44,824 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 16:12:44,824 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 16:12:44,825 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:12:44" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 16:12:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 16:12:44,898 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 16:12:44,898 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-14 16:12:44,898 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-14 16:12:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-14 16:12:44,899 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-14 16:12:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-14 16:12:44,899 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-14 16:12:44,899 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 16:12:44,900 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 16:12:44,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 16:12:44,900 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 16:12:44,900 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 16:12:44,900 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 16:12:54,881 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 16:12:54,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 04:12:54 BoogieIcfgContainer [2018-09-14 16:12:54,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 16:12:54,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 16:12:54,883 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 16:12:54,886 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 16:12:54,886 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 04:12:41" (1/3) ... [2018-09-14 16:12:54,887 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17484761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 04:12:54, skipping insertion in model container [2018-09-14 16:12:54,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:12:44" (2/3) ... [2018-09-14 16:12:54,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17484761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 04:12:54, skipping insertion in model container [2018-09-14 16:12:54,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 04:12:54" (3/3) ... [2018-09-14 16:12:54,889 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label34_true-unreach-call.c [2018-09-14 16:12:54,898 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 16:12:54,909 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 16:12:54,976 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 16:12:54,977 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 16:12:54,977 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 16:12:54,977 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 16:12:54,977 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 16:12:54,977 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 16:12:54,977 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 16:12:54,978 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 16:12:54,978 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 16:12:55,022 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states. [2018-09-14 16:12:55,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 802 [2018-09-14 16:12:55,088 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:12:55,090 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:12:55,092 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:12:55,099 INFO L82 PathProgramCache]: Analyzing trace with hash 651398847, now seen corresponding path program 1 times [2018-09-14 16:12:55,102 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:12:55,159 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:12:55,159 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:12:55,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:12:55,160 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:12:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:12:56,569 WARN L178 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 16:12:57,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:12:57,322 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 16:12:57,322 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 16:12:57,322 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:12:57,329 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 16:12:57,341 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 16:12:57,341 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 16:12:57,344 INFO L87 Difference]: Start difference. First operand 907 states. Second operand 3 states. [2018-09-14 16:13:04,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:13:04,275 INFO L93 Difference]: Finished difference Result 2647 states and 5102 transitions. [2018-09-14 16:13:04,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 16:13:04,278 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 801 [2018-09-14 16:13:04,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:13:04,317 INFO L225 Difference]: With dead ends: 2647 [2018-09-14 16:13:04,318 INFO L226 Difference]: Without dead ends: 1738 [2018-09-14 16:13:04,328 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 5 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 16:13:04,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2018-09-14 16:13:04,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1738. [2018-09-14 16:13:04,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1738 states. [2018-09-14 16:13:04,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 3121 transitions. [2018-09-14 16:13:04,495 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 3121 transitions. Word has length 801 [2018-09-14 16:13:04,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:13:04,497 INFO L480 AbstractCegarLoop]: Abstraction has 1738 states and 3121 transitions. [2018-09-14 16:13:04,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 16:13:04,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 3121 transitions. [2018-09-14 16:13:04,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 861 [2018-09-14 16:13:04,548 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:13:04,548 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:13:04,549 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:13:04,550 INFO L82 PathProgramCache]: Analyzing trace with hash -1807143260, now seen corresponding path program 1 times [2018-09-14 16:13:04,550 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:13:04,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:13:04,552 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:13:04,552 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:13:04,553 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:13:04,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:13:05,038 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 16:13:05,498 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:13:05,498 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 16:13:05,498 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 16:13:05,499 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:13:05,503 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 16:13:05,504 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 16:13:05,504 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 16:13:05,505 INFO L87 Difference]: Start difference. First operand 1738 states and 3121 transitions. Second operand 6 states. [2018-09-14 16:13:14,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:13:14,876 INFO L93 Difference]: Finished difference Result 5353 states and 9715 transitions. [2018-09-14 16:13:14,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 16:13:14,878 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 860 [2018-09-14 16:13:14,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:13:14,902 INFO L225 Difference]: With dead ends: 5353 [2018-09-14 16:13:14,902 INFO L226 Difference]: Without dead ends: 3621 [2018-09-14 16:13:14,909 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 16:13:14,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3621 states. [2018-09-14 16:13:14,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3621 to 3589. [2018-09-14 16:13:14,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3589 states. [2018-09-14 16:13:15,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3589 states to 3589 states and 6080 transitions. [2018-09-14 16:13:15,010 INFO L78 Accepts]: Start accepts. Automaton has 3589 states and 6080 transitions. Word has length 860 [2018-09-14 16:13:15,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:13:15,011 INFO L480 AbstractCegarLoop]: Abstraction has 3589 states and 6080 transitions. [2018-09-14 16:13:15,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 16:13:15,011 INFO L276 IsEmpty]: Start isEmpty. Operand 3589 states and 6080 transitions. [2018-09-14 16:13:15,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 870 [2018-09-14 16:13:15,043 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:13:15,044 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 16:13:15,044 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:13:15,045 INFO L82 PathProgramCache]: Analyzing trace with hash -1368295293, now seen corresponding path program 1 times [2018-09-14 16:13:15,045 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:13:15,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:13:15,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:13:15,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:13:15,046 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:13:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:13:15,764 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:13:15,765 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:13:15,765 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:13:15,780 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:13:15,780 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:13:16,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:13:16,182 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:13:16,938 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:13:16,938 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:13:18,003 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:13:18,025 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:13:18,025 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 16:13:18,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:13:18,052 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:13:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:13:18,634 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:13:19,723 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:13:19,723 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:13:20,137 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 69 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:13:20,140 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 16:13:20,141 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-09-14 16:13:20,141 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 16:13:20,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 16:13:20,144 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 16:13:20,145 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2018-09-14 16:13:20,145 INFO L87 Difference]: Start difference. First operand 3589 states and 6080 transitions. Second operand 9 states. [2018-09-14 16:13:35,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:13:35,779 INFO L93 Difference]: Finished difference Result 14737 states and 25721 transitions. [2018-09-14 16:13:35,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-09-14 16:13:35,781 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 869 [2018-09-14 16:13:35,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:13:35,854 INFO L225 Difference]: With dead ends: 14737 [2018-09-14 16:13:35,854 INFO L226 Difference]: Without dead ends: 11154 [2018-09-14 16:13:35,873 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3514 GetRequests, 3474 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=352, Invalid=1288, Unknown=0, NotChecked=0, Total=1640 [2018-09-14 16:13:35,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11154 states. [2018-09-14 16:13:36,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11154 to 11024. [2018-09-14 16:13:36,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11024 states. [2018-09-14 16:13:36,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11024 states to 11024 states and 16890 transitions. [2018-09-14 16:13:36,287 INFO L78 Accepts]: Start accepts. Automaton has 11024 states and 16890 transitions. Word has length 869 [2018-09-14 16:13:36,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:13:36,287 INFO L480 AbstractCegarLoop]: Abstraction has 11024 states and 16890 transitions. [2018-09-14 16:13:36,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-14 16:13:36,288 INFO L276 IsEmpty]: Start isEmpty. Operand 11024 states and 16890 transitions. [2018-09-14 16:13:36,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 909 [2018-09-14 16:13:36,353 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:13:36,354 INFO L376 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 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] [2018-09-14 16:13:36,354 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:13:36,356 INFO L82 PathProgramCache]: Analyzing trace with hash -456829862, now seen corresponding path program 1 times [2018-09-14 16:13:36,356 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:13:36,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:13:36,358 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:13:36,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:13:36,358 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:13:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:13:36,923 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-09-14 16:13:37,733 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 98 proven. 22 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-09-14 16:13:37,734 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:13:37,734 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:13:37,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:13:37,743 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:13:38,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:13:38,025 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:13:38,680 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2018-09-14 16:13:38,681 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:13:39,804 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 98 proven. 22 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-09-14 16:13:39,825 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 16:13:39,826 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-14 16:13:39,826 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:13:39,827 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 16:13:39,827 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 16:13:39,828 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2018-09-14 16:13:39,828 INFO L87 Difference]: Start difference. First operand 11024 states and 16890 transitions. Second operand 5 states. [2018-09-14 16:13:47,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:13:47,270 INFO L93 Difference]: Finished difference Result 33474 states and 54793 transitions. [2018-09-14 16:13:47,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 16:13:47,273 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 908 [2018-09-14 16:13:47,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:13:47,401 INFO L225 Difference]: With dead ends: 33474 [2018-09-14 16:13:47,402 INFO L226 Difference]: Without dead ends: 22456 [2018-09-14 16:13:47,449 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1825 GetRequests, 1810 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-09-14 16:13:47,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22456 states. [2018-09-14 16:13:48,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22456 to 22257. [2018-09-14 16:13:48,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22257 states. [2018-09-14 16:13:48,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22257 states to 22257 states and 35192 transitions. [2018-09-14 16:13:48,121 INFO L78 Accepts]: Start accepts. Automaton has 22257 states and 35192 transitions. Word has length 908 [2018-09-14 16:13:48,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:13:48,122 INFO L480 AbstractCegarLoop]: Abstraction has 22257 states and 35192 transitions. [2018-09-14 16:13:48,122 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 16:13:48,122 INFO L276 IsEmpty]: Start isEmpty. Operand 22257 states and 35192 transitions. [2018-09-14 16:13:48,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 927 [2018-09-14 16:13:48,222 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:13:48,223 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 16:13:48,223 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:13:48,223 INFO L82 PathProgramCache]: Analyzing trace with hash 34822209, now seen corresponding path program 1 times [2018-09-14 16:13:48,223 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:13:48,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:13:48,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:13:48,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:13:48,225 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:13:48,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:13:49,509 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 137 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-09-14 16:13:49,511 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:13:49,511 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-09-14 16:13:49,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:13:49,527 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:13:49,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:13:49,825 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:13:50,549 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2018-09-14 16:13:50,549 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:13:51,247 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 137 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-09-14 16:13:51,270 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:13:51,270 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 6 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 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 16:13:51,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:13:51,287 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:13:51,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:13:51,945 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:13:52,463 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2018-09-14 16:13:52,464 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:13:52,736 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-14 16:13:53,217 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 137 proven. 28 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-09-14 16:13:53,220 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 16:13:53,221 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 16 [2018-09-14 16:13:53,221 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 16:13:53,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 16:13:53,224 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 16:13:53,224 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=188, Unknown=0, NotChecked=0, Total=240 [2018-09-14 16:13:53,224 INFO L87 Difference]: Start difference. First operand 22257 states and 35192 transitions. Second operand 9 states. [2018-09-14 16:14:10,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:14:10,905 INFO L93 Difference]: Finished difference Result 67514 states and 127020 transitions. [2018-09-14 16:14:10,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2018-09-14 16:14:10,905 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 926 [2018-09-14 16:14:10,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:14:11,160 INFO L225 Difference]: With dead ends: 67514 [2018-09-14 16:14:11,161 INFO L226 Difference]: Without dead ends: 45263 [2018-09-14 16:14:11,259 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3766 GetRequests, 3722 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 464 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=405, Invalid=1575, Unknown=0, NotChecked=0, Total=1980 [2018-09-14 16:14:11,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45263 states. [2018-09-14 16:14:12,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45263 to 43352. [2018-09-14 16:14:12,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43352 states. [2018-09-14 16:14:12,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43352 states to 43352 states and 60220 transitions. [2018-09-14 16:14:12,835 INFO L78 Accepts]: Start accepts. Automaton has 43352 states and 60220 transitions. Word has length 926 [2018-09-14 16:14:12,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:14:12,835 INFO L480 AbstractCegarLoop]: Abstraction has 43352 states and 60220 transitions. [2018-09-14 16:14:12,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-14 16:14:12,835 INFO L276 IsEmpty]: Start isEmpty. Operand 43352 states and 60220 transitions. [2018-09-14 16:14:12,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 959 [2018-09-14 16:14:12,955 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:14:12,956 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:14:12,956 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:14:12,957 INFO L82 PathProgramCache]: Analyzing trace with hash 1380654440, now seen corresponding path program 1 times [2018-09-14 16:14:12,958 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:14:12,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:14:12,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:14:12,964 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:14:12,965 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:14:13,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:14:13,348 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 16:14:14,329 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:14:14,329 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 16:14:14,329 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 16:14:14,329 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:14:14,330 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 16:14:14,330 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 16:14:14,331 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 16:14:14,331 INFO L87 Difference]: Start difference. First operand 43352 states and 60220 transitions. Second operand 6 states. [2018-09-14 16:14:22,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:14:22,039 INFO L93 Difference]: Finished difference Result 105314 states and 153723 transitions. [2018-09-14 16:14:22,039 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 16:14:22,040 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 958 [2018-09-14 16:14:22,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:14:22,288 INFO L225 Difference]: With dead ends: 105314 [2018-09-14 16:14:22,288 INFO L226 Difference]: Without dead ends: 61968 [2018-09-14 16:14:22,385 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 16:14:22,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61968 states. [2018-09-14 16:14:23,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61968 to 61786. [2018-09-14 16:14:23,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61786 states. [2018-09-14 16:14:23,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61786 states to 61786 states and 86589 transitions. [2018-09-14 16:14:23,750 INFO L78 Accepts]: Start accepts. Automaton has 61786 states and 86589 transitions. Word has length 958 [2018-09-14 16:14:23,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:14:23,752 INFO L480 AbstractCegarLoop]: Abstraction has 61786 states and 86589 transitions. [2018-09-14 16:14:23,752 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 16:14:23,752 INFO L276 IsEmpty]: Start isEmpty. Operand 61786 states and 86589 transitions. [2018-09-14 16:14:23,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1107 [2018-09-14 16:14:23,884 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:14:23,886 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:14:23,886 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:14:23,886 INFO L82 PathProgramCache]: Analyzing trace with hash 262168542, now seen corresponding path program 1 times [2018-09-14 16:14:23,887 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:14:23,887 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:14:23,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:14:23,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:14:23,888 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:14:23,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:14:25,025 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 331 proven. 31 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2018-09-14 16:14:25,026 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:14:25,026 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 [2018-09-14 16:14:25,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:14:25,034 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:14:25,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:14:25,354 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:14:25,946 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 360 proven. 2 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2018-09-14 16:14:25,946 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:14:26,725 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 331 proven. 31 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2018-09-14 16:14:26,747 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:14:26,747 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 [2018-09-14 16:14:26,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:14:26,763 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:14:27,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:14:27,506 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:14:28,237 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 360 proven. 2 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2018-09-14 16:14:28,237 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:14:29,036 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 331 proven. 31 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2018-09-14 16:14:29,038 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 16:14:29,040 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 17 [2018-09-14 16:14:29,040 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 16:14:29,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 16:14:29,042 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 16:14:29,042 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2018-09-14 16:14:29,042 INFO L87 Difference]: Start difference. First operand 61786 states and 86589 transitions. Second operand 9 states. [2018-09-14 16:14:49,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:14:49,865 INFO L93 Difference]: Finished difference Result 216937 states and 320062 transitions. [2018-09-14 16:14:49,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-14 16:14:49,866 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1106 [2018-09-14 16:14:49,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:14:50,911 INFO L225 Difference]: With dead ends: 216937 [2018-09-14 16:14:50,912 INFO L226 Difference]: Without dead ends: 155157 [2018-09-14 16:14:51,059 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4468 GetRequests, 4432 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 298 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=266, Invalid=1066, Unknown=0, NotChecked=0, Total=1332 [2018-09-14 16:14:51,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155157 states. [2018-09-14 16:14:53,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155157 to 146259. [2018-09-14 16:14:53,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146259 states. [2018-09-14 16:14:53,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146259 states to 146259 states and 186927 transitions. [2018-09-14 16:14:53,621 INFO L78 Accepts]: Start accepts. Automaton has 146259 states and 186927 transitions. Word has length 1106 [2018-09-14 16:14:53,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:14:53,621 INFO L480 AbstractCegarLoop]: Abstraction has 146259 states and 186927 transitions. [2018-09-14 16:14:53,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-14 16:14:53,622 INFO L276 IsEmpty]: Start isEmpty. Operand 146259 states and 186927 transitions. [2018-09-14 16:14:53,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1550 [2018-09-14 16:14:53,985 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:14:53,986 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 16:14:53,986 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:14:53,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1259730717, now seen corresponding path program 1 times [2018-09-14 16:14:53,987 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:14:53,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:14:53,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:14:53,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:14:53,989 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:14:54,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:14:55,075 WARN L178 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-09-14 16:14:55,437 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-09-14 16:14:57,687 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 734 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:14:57,687 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:14:57,687 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 [2018-09-14 16:14:57,695 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:14:57,695 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:14:58,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:14:58,139 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:15:00,002 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 751 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:15:00,002 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:15:02,951 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 751 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:15:02,972 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:15:02,972 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 [2018-09-14 16:15:02,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:15:02,991 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:15:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:15:04,003 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:15:05,492 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 751 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:15:05,492 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:15:07,769 INFO L134 CoverageAnalysis]: Checked inductivity of 753 backedges. 751 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:15:07,772 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 16:15:07,773 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5, 5, 5] total 18 [2018-09-14 16:15:07,773 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 16:15:07,776 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2018-09-14 16:15:07,776 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2018-09-14 16:15:07,776 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=233, Unknown=0, NotChecked=0, Total=306 [2018-09-14 16:15:07,776 INFO L87 Difference]: Start difference. First operand 146259 states and 186927 transitions. Second operand 14 states. [2018-09-14 16:15:50,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:15:50,226 INFO L93 Difference]: Finished difference Result 494913 states and 669784 transitions. [2018-09-14 16:15:50,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-09-14 16:15:50,227 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 1549 [2018-09-14 16:15:50,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:15:51,733 INFO L225 Difference]: With dead ends: 494913 [2018-09-14 16:15:51,734 INFO L226 Difference]: Without dead ends: 301931 [2018-09-14 16:15:52,197 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6304 GetRequests, 6221 SyntacticMatches, 20 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1550 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=827, Invalid=3333, Unknown=0, NotChecked=0, Total=4160 [2018-09-14 16:15:52,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301931 states. [2018-09-14 16:15:58,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301931 to 298093. [2018-09-14 16:15:58,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298093 states. [2018-09-14 16:15:59,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298093 states to 298093 states and 352696 transitions. [2018-09-14 16:15:59,041 INFO L78 Accepts]: Start accepts. Automaton has 298093 states and 352696 transitions. Word has length 1549 [2018-09-14 16:15:59,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:15:59,041 INFO L480 AbstractCegarLoop]: Abstraction has 298093 states and 352696 transitions. [2018-09-14 16:15:59,041 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2018-09-14 16:15:59,042 INFO L276 IsEmpty]: Start isEmpty. Operand 298093 states and 352696 transitions. [2018-09-14 16:15:59,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1840 [2018-09-14 16:15:59,546 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:15:59,547 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 16:15:59,548 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:15:59,548 INFO L82 PathProgramCache]: Analyzing trace with hash -169487260, now seen corresponding path program 1 times [2018-09-14 16:15:59,548 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:15:59,549 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:15:59,549 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:15:59,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:15:59,550 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:15:59,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:16:08,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1402 backedges. 1328 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-14 16:16:08,897 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:16:08,897 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:16:08,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:16:08,906 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:16:09,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:16:09,447 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:16:11,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1402 backedges. 1328 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-14 16:16:11,042 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:16:13,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1402 backedges. 1328 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-14 16:16:13,603 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:16:13,603 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 12 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 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 16:16:13,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:16:13,620 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:16:14,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:16:14,887 INFO L273 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2018-09-14 16:16:16,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1402 backedges. 1328 proven. 2 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-14 16:16:16,314 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:16:16,327 WARN L186 SmtUtils]: Removed 1 from assertion stack [2018-09-14 16:16:16,327 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-09-14 16:16:16,529 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 16:16:16,529 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 16:16:16,535 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 16:16:16,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 04:16:16 BoogieIcfgContainer [2018-09-14 16:16:16,535 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 16:16:16,536 INFO L168 Benchmark]: Toolchain (without parser) took 214728.93 ms. Allocated memory was 1.5 GB in the beginning and 5.0 GB in the end (delta: 3.5 GB). Free memory was 1.4 GB in the beginning and 3.1 GB in the end (delta: -1.7 GB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-09-14 16:16:16,537 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-14 16:16:16,538 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2237.01 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. [2018-09-14 16:16:16,541 INFO L168 Benchmark]: Boogie Procedure Inliner took 160.75 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. [2018-09-14 16:16:16,543 INFO L168 Benchmark]: Boogie Preprocessor took 613.59 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 871.9 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. [2018-09-14 16:16:16,544 INFO L168 Benchmark]: RCFGBuilder took 10057.93 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 157.8 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -122.3 MB). Peak memory consumption was 702.8 MB. Max. memory is 7.1 GB. [2018-09-14 16:16:16,545 INFO L168 Benchmark]: TraceAbstraction took 201652.95 ms. Allocated memory was 2.6 GB in the beginning and 5.0 GB in the end (delta: 2.5 GB). Free memory was 2.4 GB in the beginning and 3.1 GB in the end (delta: -690.4 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. [2018-09-14 16:16:16,557 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2237.01 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 160.75 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 613.59 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 871.9 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 85.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10057.93 ms. Allocated memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: 157.8 MB). Free memory was 2.3 GB in the beginning and 2.4 GB in the end (delta: -122.3 MB). Peak memory consumption was 702.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 201652.95 ms. Allocated memory was 2.6 GB in the beginning and 5.0 GB in the end (delta: 2.5 GB). Free memory was 2.4 GB in the beginning and 3.1 GB in the end (delta: -690.4 MB). Peak memory consumption was 1.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 4721]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 4721). Cancelled while BasicCegarLoop was analyzing trace of length 1840 with TraceHistMax 4, while TraceCheckSpWp was constructing backward predicates, while PartialQuantifierElimination was doing sequential composition of 47 TransFormulas, while SimplifyDDAWithTimeout was simplifying term of DAG size 3. - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 907 locations, 1 error locations. TIMEOUT Result, 201.5s OverallTime, 9 OverallIterations, 5 TraceHistogramMax, 132.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1506 SDtfs, 56092 SDslu, 2892 SDs, 0 SdLazy, 87057 SolverSat, 33755 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 96.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19905 GetRequests, 19665 SyntacticMatches, 34 SemanticMatches, 206 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2699 ImplicationChecksByTransitivity, 9.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298093occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 13.6s AutomataMinimizationTime, 8 MinimizatonAttempts, 15190 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.9s SsaConstructionTime, 4.5s SatisfiabilityAnalysisTime, 25.1s InterpolantComputationTime, 17785 NumberOfCodeBlocks, 17785 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 27567 ConstructedInterpolants, 0 QuantifiedInterpolants, 58616684 SizeOfPredicates, 5 NumberOfNonLiveVariables, 13816 ConjunctsInSsa, 72 ConjunctsInUnsatCore, 26 InterpolantComputations, 4 PerfectInterpolantSequences, 8130/8396 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem04_label34_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_16-16-16-575.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem04_label34_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_16-16-16-575.csv Completed graceful shutdown