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/Problem05_label22_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 16:21:13,127 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 16:21:13,129 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 16:21:13,145 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 16:21:13,145 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 16:21:13,147 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 16:21:13,149 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 16:21:13,151 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 16:21:13,154 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 16:21:13,161 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 16:21:13,164 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 16:21:13,164 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 16:21:13,165 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 16:21:13,166 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 16:21:13,168 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 16:21:13,171 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 16:21:13,172 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 16:21:13,177 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 16:21:13,180 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 16:21:13,185 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 16:21:13,187 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 16:21:13,188 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 16:21:13,191 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 16:21:13,191 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 16:21:13,191 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 16:21:13,194 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 16:21:13,195 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 16:21:13,196 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 16:21:13,196 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 16:21:13,200 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 16:21:13,200 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 16:21:13,201 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 16:21:13,201 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 16:21:13,201 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 16:21:13,204 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 16:21:13,205 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 16:21:13,205 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 16:21:13,232 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 16:21:13,232 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 16:21:13,233 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 16:21:13,233 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 16:21:13,234 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 16:21:13,234 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 16:21:13,234 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 16:21:13,234 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 16:21:13,234 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 16:21:13,235 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 16:21:13,235 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 16:21:13,236 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 16:21:13,236 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 16:21:13,236 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 16:21:13,237 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 16:21:13,237 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 16:21:13,237 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 16:21:13,237 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 16:21:13,237 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 16:21:13,238 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 16:21:13,238 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 16:21:13,238 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 16:21:13,238 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 16:21:13,240 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 16:21:13,240 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 16:21:13,240 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 16:21:13,240 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 16:21:13,241 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 16:21:13,241 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 16:21:13,241 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 16:21:13,241 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 16:21:13,241 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 16:21:13,242 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 16:21:13,295 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 16:21:13,312 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 16:21:13,318 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 16:21:13,320 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 16:21:13,320 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 16:21:13,321 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem05_label22_true-unreach-call.c [2018-09-14 16:21:13,683 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebb78ca02/242a0d07cb7647b2ab9134adcb84e5ea/FLAGd47550d15 [2018-09-14 16:21:14,330 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 16:21:14,331 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem05_label22_true-unreach-call.c [2018-09-14 16:21:14,382 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebb78ca02/242a0d07cb7647b2ab9134adcb84e5ea/FLAGd47550d15 [2018-09-14 16:21:14,403 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ebb78ca02/242a0d07cb7647b2ab9134adcb84e5ea [2018-09-14 16:21:14,417 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 16:21:14,424 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 16:21:14,425 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 16:21:14,425 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 16:21:14,435 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 16:21:14,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 04:21:14" (1/1) ... [2018-09-14 16:21:14,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74b987bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:21:14, skipping insertion in model container [2018-09-14 16:21:14,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 04:21:14" (1/1) ... [2018-09-14 16:21:14,452 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 16:21:16,564 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 16:21:16,583 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 16:21:17,927 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 16:21:18,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:21:18 WrapperNode [2018-09-14 16:21:18,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 16:21:18,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 16:21:18,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 16:21:18,425 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 16:21:18,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:21:18" (1/1) ... [2018-09-14 16:21:18,513 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:21:18" (1/1) ... [2018-09-14 16:21:18,596 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 16:21:18,597 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 16:21:18,597 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 16:21:18,597 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 16:21:19,257 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:21:18" (1/1) ... [2018-09-14 16:21:19,258 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:21:18" (1/1) ... [2018-09-14 16:21:19,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:21:18" (1/1) ... [2018-09-14 16:21:19,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:21:18" (1/1) ... [2018-09-14 16:21:19,484 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:21:18" (1/1) ... [2018-09-14 16:21:19,551 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:21:18" (1/1) ... [2018-09-14 16:21:19,635 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:21:18" (1/1) ... [2018-09-14 16:21:19,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 16:21:19,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 16:21:19,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 16:21:19,712 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 16:21:19,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:21:18" (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 16:21:19,785 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 16:21:19,786 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 16:21:19,786 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output8 [2018-09-14 16:21:19,786 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output8 [2018-09-14 16:21:19,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 16:21:19,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 16:21:19,786 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output7 [2018-09-14 16:21:19,786 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output7 [2018-09-14 16:21:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-09-14 16:21:19,787 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-09-14 16:21:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-09-14 16:21:19,787 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-09-14 16:21:19,787 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-14 16:21:19,787 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-14 16:21:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-14 16:21:19,788 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-14 16:21:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-14 16:21:19,788 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-14 16:21:19,788 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 16:21:19,788 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 16:21:19,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 16:21:19,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 16:21:33,723 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 16:21:33,724 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 04:21:33 BoogieIcfgContainer [2018-09-14 16:21:33,724 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 16:21:33,725 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 16:21:33,725 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 16:21:33,728 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 16:21:33,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 04:21:14" (1/3) ... [2018-09-14 16:21:33,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539fabb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 04:21:33, skipping insertion in model container [2018-09-14 16:21:33,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:21:18" (2/3) ... [2018-09-14 16:21:33,730 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@539fabb4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 04:21:33, skipping insertion in model container [2018-09-14 16:21:33,730 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 04:21:33" (3/3) ... [2018-09-14 16:21:33,732 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label22_true-unreach-call.c [2018-09-14 16:21:33,742 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 16:21:33,752 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 16:21:33,825 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 16:21:33,826 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 16:21:33,826 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 16:21:33,826 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 16:21:33,827 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 16:21:33,827 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 16:21:33,827 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 16:21:33,827 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 16:21:33,827 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 16:21:33,883 INFO L276 IsEmpty]: Start isEmpty. Operand 2223 states. [2018-09-14 16:21:33,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1682 [2018-09-14 16:21:33,983 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:21:33,986 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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:21:33,987 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:21:33,993 INFO L82 PathProgramCache]: Analyzing trace with hash 1162059026, now seen corresponding path program 1 times [2018-09-14 16:21:33,995 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:21:34,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:21:34,055 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:21:34,055 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:21:34,055 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:21:34,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:21:36,892 WARN L178 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 16:21:41,491 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 16:21:41,493 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 16:21:41,493 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 16:21:41,494 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:21:41,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 16:21:41,520 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 16:21:41,520 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 16:21:41,523 INFO L87 Difference]: Start difference. First operand 2223 states. Second operand 3 states. [2018-09-14 16:21:54,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:21:54,152 INFO L93 Difference]: Finished difference Result 6282 states and 11807 transitions. [2018-09-14 16:21:54,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 16:21:54,154 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1681 [2018-09-14 16:21:54,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:21:54,223 INFO L225 Difference]: With dead ends: 6282 [2018-09-14 16:21:54,224 INFO L226 Difference]: Without dead ends: 4057 [2018-09-14 16:21:54,243 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 9 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 16:21:54,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4057 states. [2018-09-14 16:21:54,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4057 to 4051. [2018-09-14 16:21:54,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4051 states. [2018-09-14 16:21:54,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4051 states to 4051 states and 7097 transitions. [2018-09-14 16:21:54,487 INFO L78 Accepts]: Start accepts. Automaton has 4051 states and 7097 transitions. Word has length 1681 [2018-09-14 16:21:54,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:21:54,495 INFO L480 AbstractCegarLoop]: Abstraction has 4051 states and 7097 transitions. [2018-09-14 16:21:54,495 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 16:21:54,495 INFO L276 IsEmpty]: Start isEmpty. Operand 4051 states and 7097 transitions. [2018-09-14 16:21:54,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1692 [2018-09-14 16:21:54,777 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:21:54,779 INFO L376 BasicCegarLoop]: trace histogram [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, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:21:54,779 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:21:54,780 INFO L82 PathProgramCache]: Analyzing trace with hash 570726288, now seen corresponding path program 1 times [2018-09-14 16:21:54,780 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:21:54,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:21:54,783 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:21:54,783 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:21:54,783 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:21:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:21:55,265 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 16:21:56,843 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:21:56,843 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 16:21:56,844 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-14 16:21:56,844 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:21:56,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 16:21:56,849 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 16:21:56,849 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-14 16:21:56,850 INFO L87 Difference]: Start difference. First operand 4051 states and 7097 transitions. Second operand 5 states. [2018-09-14 16:22:11,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:22:11,775 INFO L93 Difference]: Finished difference Result 11785 states and 20940 transitions. [2018-09-14 16:22:11,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 16:22:11,784 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1691 [2018-09-14 16:22:11,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:22:11,846 INFO L225 Difference]: With dead ends: 11785 [2018-09-14 16:22:11,846 INFO L226 Difference]: Without dead ends: 7740 [2018-09-14 16:22:11,859 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-14 16:22:11,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7740 states. [2018-09-14 16:22:12,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7740 to 7667. [2018-09-14 16:22:12,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7667 states. [2018-09-14 16:22:12,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7667 states to 7667 states and 12840 transitions. [2018-09-14 16:22:12,107 INFO L78 Accepts]: Start accepts. Automaton has 7667 states and 12840 transitions. Word has length 1691 [2018-09-14 16:22:12,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:22:12,108 INFO L480 AbstractCegarLoop]: Abstraction has 7667 states and 12840 transitions. [2018-09-14 16:22:12,108 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 16:22:12,108 INFO L276 IsEmpty]: Start isEmpty. Operand 7667 states and 12840 transitions. [2018-09-14 16:22:12,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1694 [2018-09-14 16:22:12,244 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:22:12,247 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:22:12,247 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:22:12,248 INFO L82 PathProgramCache]: Analyzing trace with hash -702264908, now seen corresponding path program 1 times [2018-09-14 16:22:12,248 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:22:12,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:22:12,250 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:22:12,250 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:22:12,250 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:22:12,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:22:17,271 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:22:17,272 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 16:22:17,272 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 16:22:17,272 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:22:17,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 16:22:17,275 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 16:22:17,275 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 16:22:17,276 INFO L87 Difference]: Start difference. First operand 7667 states and 12840 transitions. Second operand 4 states. [2018-09-14 16:22:32,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:22:32,261 INFO L93 Difference]: Finished difference Result 29447 states and 51084 transitions. [2018-09-14 16:22:32,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 16:22:32,262 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1693 [2018-09-14 16:22:32,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:22:32,385 INFO L225 Difference]: With dead ends: 29447 [2018-09-14 16:22:32,385 INFO L226 Difference]: Without dead ends: 21786 [2018-09-14 16:22:32,420 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 16:22:32,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21786 states. [2018-09-14 16:22:32,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21786 to 21761. [2018-09-14 16:22:32,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21761 states. [2018-09-14 16:22:32,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21761 states to 21761 states and 33383 transitions. [2018-09-14 16:22:32,999 INFO L78 Accepts]: Start accepts. Automaton has 21761 states and 33383 transitions. Word has length 1693 [2018-09-14 16:22:33,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:22:33,002 INFO L480 AbstractCegarLoop]: Abstraction has 21761 states and 33383 transitions. [2018-09-14 16:22:33,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 16:22:33,003 INFO L276 IsEmpty]: Start isEmpty. Operand 21761 states and 33383 transitions. [2018-09-14 16:22:33,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1754 [2018-09-14 16:22:33,100 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:22:33,101 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:22:33,101 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:22:33,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1539280408, now seen corresponding path program 1 times [2018-09-14 16:22:33,103 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:22:33,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:22:33,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:22:33,104 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:22:33,104 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:22:33,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:22:33,529 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 16:22:35,492 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:22:35,493 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 16:22:35,493 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 16:22:35,493 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:22:35,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 16:22:35,495 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 16:22:35,495 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 16:22:35,496 INFO L87 Difference]: Start difference. First operand 21761 states and 33383 transitions. Second operand 6 states. [2018-09-14 16:22:48,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:22:48,758 INFO L93 Difference]: Finished difference Result 55274 states and 87335 transitions. [2018-09-14 16:22:48,758 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 16:22:48,759 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1753 [2018-09-14 16:22:48,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:22:48,904 INFO L225 Difference]: With dead ends: 55274 [2018-09-14 16:22:48,904 INFO L226 Difference]: Without dead ends: 33519 [2018-09-14 16:22:48,986 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 16:22:49,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33519 states. [2018-09-14 16:22:49,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33519 to 33364. [2018-09-14 16:22:49,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33364 states. [2018-09-14 16:22:49,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33364 states to 33364 states and 47714 transitions. [2018-09-14 16:22:49,954 INFO L78 Accepts]: Start accepts. Automaton has 33364 states and 47714 transitions. Word has length 1753 [2018-09-14 16:22:49,954 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:22:49,954 INFO L480 AbstractCegarLoop]: Abstraction has 33364 states and 47714 transitions. [2018-09-14 16:22:49,954 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 16:22:49,955 INFO L276 IsEmpty]: Start isEmpty. Operand 33364 states and 47714 transitions. [2018-09-14 16:22:50,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1760 [2018-09-14 16:22:50,068 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:22:50,069 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:22:50,069 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:22:50,070 INFO L82 PathProgramCache]: Analyzing trace with hash -215103333, now seen corresponding path program 1 times [2018-09-14 16:22:50,070 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:22:50,071 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:22:50,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:22:50,072 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:22:50,072 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:22:50,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:22:51,427 WARN L178 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 8 [2018-09-14 16:22:52,073 WARN L178 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 13 [2018-09-14 16:22:55,022 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:22:55,023 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 16:22:55,023 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 16:22:55,024 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:22:55,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 16:22:55,026 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 16:22:55,026 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-14 16:22:55,027 INFO L87 Difference]: Start difference. First operand 33364 states and 47714 transitions. Second operand 6 states. [2018-09-14 16:23:11,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:23:11,243 INFO L93 Difference]: Finished difference Result 68717 states and 100932 transitions. [2018-09-14 16:23:11,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 16:23:11,244 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1759 [2018-09-14 16:23:11,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:23:11,366 INFO L225 Difference]: With dead ends: 68717 [2018-09-14 16:23:11,367 INFO L226 Difference]: Without dead ends: 35359 [2018-09-14 16:23:11,419 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-14 16:23:11,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35359 states. [2018-09-14 16:23:11,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35359 to 35086. [2018-09-14 16:23:11,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35086 states. [2018-09-14 16:23:12,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35086 states to 35086 states and 49650 transitions. [2018-09-14 16:23:12,073 INFO L78 Accepts]: Start accepts. Automaton has 35086 states and 49650 transitions. Word has length 1759 [2018-09-14 16:23:12,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:23:12,074 INFO L480 AbstractCegarLoop]: Abstraction has 35086 states and 49650 transitions. [2018-09-14 16:23:12,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 16:23:12,074 INFO L276 IsEmpty]: Start isEmpty. Operand 35086 states and 49650 transitions. [2018-09-14 16:23:12,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1768 [2018-09-14 16:23:12,182 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:23:12,184 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:23:12,184 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:23:12,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1595665047, now seen corresponding path program 1 times [2018-09-14 16:23:12,186 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:23:12,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:23:12,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:23:12,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:23:12,187 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:23:12,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:23:12,616 WARN L178 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 16:23:14,616 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:23:14,616 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 16:23:14,617 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 16:23:14,617 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:23:14,618 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 16:23:14,618 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 16:23:14,618 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 16:23:14,619 INFO L87 Difference]: Start difference. First operand 35086 states and 49650 transitions. Second operand 6 states. [2018-09-14 16:23:28,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:23:28,347 INFO L93 Difference]: Finished difference Result 82693 states and 122438 transitions. [2018-09-14 16:23:28,348 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 16:23:28,348 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 1767 [2018-09-14 16:23:28,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:23:28,543 INFO L225 Difference]: With dead ends: 82693 [2018-09-14 16:23:28,544 INFO L226 Difference]: Without dead ends: 47613 [2018-09-14 16:23:28,610 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 16:23:28,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47613 states. [2018-09-14 16:23:29,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47613 to 47250. [2018-09-14 16:23:29,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47250 states. [2018-09-14 16:23:29,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47250 states to 47250 states and 67150 transitions. [2018-09-14 16:23:29,656 INFO L78 Accepts]: Start accepts. Automaton has 47250 states and 67150 transitions. Word has length 1767 [2018-09-14 16:23:29,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:23:29,657 INFO L480 AbstractCegarLoop]: Abstraction has 47250 states and 67150 transitions. [2018-09-14 16:23:29,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 16:23:29,657 INFO L276 IsEmpty]: Start isEmpty. Operand 47250 states and 67150 transitions. [2018-09-14 16:23:29,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1779 [2018-09-14 16:23:29,795 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:23:29,797 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:23:29,801 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:23:29,802 INFO L82 PathProgramCache]: Analyzing trace with hash 1153400825, now seen corresponding path program 1 times [2018-09-14 16:23:29,802 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:23:29,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:23:29,804 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:23:29,804 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:23:29,805 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:23:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:23:30,222 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-09-14 16:23:31,612 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 91 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 16:23:31,613 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:23:31,613 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 16:23:31,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:23:31,623 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:23:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:23:32,189 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:23:34,117 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-09-14 16:23:34,117 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:23:35,877 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 91 proven. 14 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 16:23:35,901 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 16:23:35,902 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-14 16:23:35,902 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:23:35,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 16:23:35,905 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 16:23:35,905 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-14 16:23:35,906 INFO L87 Difference]: Start difference. First operand 47250 states and 67150 transitions. Second operand 5 states. [2018-09-14 16:23:52,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:23:52,226 INFO L93 Difference]: Finished difference Result 107908 states and 160545 transitions. [2018-09-14 16:23:52,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 16:23:52,233 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1778 [2018-09-14 16:23:52,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:23:52,533 INFO L225 Difference]: With dead ends: 107908 [2018-09-14 16:23:52,533 INFO L226 Difference]: Without dead ends: 60664 [2018-09-14 16:23:52,661 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3565 GetRequests, 3550 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-09-14 16:23:52,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60664 states. [2018-09-14 16:23:54,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60664 to 60212. [2018-09-14 16:23:54,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60212 states. [2018-09-14 16:23:54,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60212 states to 60212 states and 85566 transitions. [2018-09-14 16:23:54,245 INFO L78 Accepts]: Start accepts. Automaton has 60212 states and 85566 transitions. Word has length 1778 [2018-09-14 16:23:54,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:23:54,246 INFO L480 AbstractCegarLoop]: Abstraction has 60212 states and 85566 transitions. [2018-09-14 16:23:54,246 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 16:23:54,246 INFO L276 IsEmpty]: Start isEmpty. Operand 60212 states and 85566 transitions. [2018-09-14 16:23:54,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1791 [2018-09-14 16:23:54,594 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:23:54,596 INFO L376 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:23:54,596 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:23:54,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1925144177, now seen corresponding path program 1 times [2018-09-14 16:23:54,597 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:23:54,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:23:54,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:23:54,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:23:54,599 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:23:54,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:23:56,878 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 122 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:23:56,879 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:23:56,879 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:23:56,887 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:23:56,887 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:23:57,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:23:57,379 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:23:59,190 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-09-14 16:23:59,190 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:24:00,396 INFO L134 CoverageAnalysis]: Checked inductivity of 124 backedges. 104 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-09-14 16:24:00,417 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 16:24:00,418 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [6] total 8 [2018-09-14 16:24:00,418 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:24:00,420 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 16:24:00,421 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 16:24:00,421 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-09-14 16:24:00,421 INFO L87 Difference]: Start difference. First operand 60212 states and 85566 transitions. Second operand 3 states. [2018-09-14 16:24:06,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:24:06,250 INFO L93 Difference]: Finished difference Result 120349 states and 171579 transitions. [2018-09-14 16:24:06,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 16:24:06,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1790 [2018-09-14 16:24:06,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:24:06,472 INFO L225 Difference]: With dead ends: 120349 [2018-09-14 16:24:06,473 INFO L226 Difference]: Without dead ends: 60143 [2018-09-14 16:24:06,557 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3585 GetRequests, 3579 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-09-14 16:24:06,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60143 states. [2018-09-14 16:24:07,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60143 to 60143. [2018-09-14 16:24:07,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60143 states. [2018-09-14 16:24:07,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60143 states to 60143 states and 85331 transitions. [2018-09-14 16:24:07,706 INFO L78 Accepts]: Start accepts. Automaton has 60143 states and 85331 transitions. Word has length 1790 [2018-09-14 16:24:07,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:24:07,707 INFO L480 AbstractCegarLoop]: Abstraction has 60143 states and 85331 transitions. [2018-09-14 16:24:07,707 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 16:24:07,707 INFO L276 IsEmpty]: Start isEmpty. Operand 60143 states and 85331 transitions. [2018-09-14 16:24:07,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1794 [2018-09-14 16:24:07,890 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:24:07,892 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:24:07,892 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:24:07,893 INFO L82 PathProgramCache]: Analyzing trace with hash -565532868, now seen corresponding path program 1 times [2018-09-14 16:24:07,893 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:24:07,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:24:07,895 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:24:07,895 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:24:07,895 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:24:08,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:24:08,353 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 16:24:10,121 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 109 proven. 26 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-09-14 16:24:10,122 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:24:10,122 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 16:24:10,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:24:10,294 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:24:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:24:10,842 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:24:12,537 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 70 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-09-14 16:24:12,538 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:24:14,089 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 117 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-09-14 16:24:14,112 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:24:14,112 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 16:24:14,130 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:24:14,131 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:24:15,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:24:15,262 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:24:16,307 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 70 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-09-14 16:24:16,308 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:24:17,634 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 117 proven. 10 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2018-09-14 16:24:17,637 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 16:24:17,638 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5, 5, 5] total 14 [2018-09-14 16:24:17,639 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 16:24:17,642 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-14 16:24:17,642 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-14 16:24:17,642 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-09-14 16:24:17,642 INFO L87 Difference]: Start difference. First operand 60143 states and 85331 transitions. Second operand 8 states. [2018-09-14 16:24:35,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:24:35,372 INFO L93 Difference]: Finished difference Result 149149 states and 222128 transitions. [2018-09-14 16:24:35,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-14 16:24:35,373 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1793 [2018-09-14 16:24:35,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:24:35,710 INFO L225 Difference]: With dead ends: 149149 [2018-09-14 16:24:35,710 INFO L226 Difference]: Without dead ends: 89012 [2018-09-14 16:24:35,820 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7197 GetRequests, 7171 SyntacticMatches, 4 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2018-09-14 16:24:35,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89012 states. [2018-09-14 16:24:37,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89012 to 88742. [2018-09-14 16:24:37,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88742 states. [2018-09-14 16:24:37,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88742 states to 88742 states and 124543 transitions. [2018-09-14 16:24:37,374 INFO L78 Accepts]: Start accepts. Automaton has 88742 states and 124543 transitions. Word has length 1793 [2018-09-14 16:24:37,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:24:37,374 INFO L480 AbstractCegarLoop]: Abstraction has 88742 states and 124543 transitions. [2018-09-14 16:24:37,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-14 16:24:37,374 INFO L276 IsEmpty]: Start isEmpty. Operand 88742 states and 124543 transitions. [2018-09-14 16:24:37,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1796 [2018-09-14 16:24:37,571 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:24:37,572 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:24:37,573 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_output8Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:24:37,573 INFO L82 PathProgramCache]: Analyzing trace with hash -657254764, now seen corresponding path program 1 times [2018-09-14 16:24:37,574 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:24:37,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:24:37,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:24:37,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:24:37,575 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:24:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:24:39,618 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 146 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:24:39,619 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:24:39,619 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:24:39,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:24:39,627 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:24:40,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:24:40,091 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:24:41,713 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-09-14 16:24:41,713 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:24:42,906 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2018-09-14 16:24:42,928 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 16:24:42,929 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 8 [2018-09-14 16:24:42,929 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:24:42,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 16:24:42,931 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 16:24:42,931 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2018-09-14 16:24:42,931 INFO L87 Difference]: Start difference. First operand 88742 states and 124543 transitions. Second operand 3 states. Received shutdown request... [2018-09-14 16:24:44,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 16:24:44,460 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 16:24:44,466 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 16:24:44,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 04:24:44 BoogieIcfgContainer [2018-09-14 16:24:44,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 16:24:44,467 INFO L168 Benchmark]: Toolchain (without parser) took 210049.55 ms. Allocated memory was 1.5 GB in the beginning and 3.4 GB in the end (delta: 1.9 GB). Free memory was 1.4 GB in the beginning and 705.5 MB in the end (delta: 664.2 MB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-09-14 16:24:44,470 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-14 16:24:44,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3999.57 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 213.9 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -228.0 MB). Peak memory consumption was 478.5 MB. Max. memory is 7.1 GB. [2018-09-14 16:24:44,472 INFO L168 Benchmark]: Boogie Procedure Inliner took 171.82 ms. Allocated memory is still 1.7 GB. Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2018-09-14 16:24:44,475 INFO L168 Benchmark]: Boogie Preprocessor took 1114.69 ms. Allocated memory was 1.7 GB in the beginning and 2.4 GB in the end (delta: 647.5 MB). Free memory was 1.6 GB in the beginning and 2.2 GB in the end (delta: -633.4 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. [2018-09-14 16:24:44,478 INFO L168 Benchmark]: RCFGBuilder took 14012.19 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 317.7 MB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 231.5 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-09-14 16:24:44,479 INFO L168 Benchmark]: TraceAbstraction took 190741.61 ms. Allocated memory was 2.7 GB in the beginning and 3.4 GB in the end (delta: 690.0 MB). Free memory was 2.0 GB in the beginning and 705.5 MB in the end (delta: 1.3 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-09-14 16:24:44,488 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3999.57 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 213.9 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -228.0 MB). Peak memory consumption was 478.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 171.82 ms. Allocated memory is still 1.7 GB. Free memory was 1.6 GB in the beginning and 1.6 GB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1114.69 ms. Allocated memory was 1.7 GB in the beginning and 2.4 GB in the end (delta: 647.5 MB). Free memory was 1.6 GB in the beginning and 2.2 GB in the end (delta: -633.4 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 14012.19 ms. Allocated memory was 2.4 GB in the beginning and 2.7 GB in the end (delta: 317.7 MB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 231.5 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * TraceAbstraction took 190741.61 ms. Allocated memory was 2.7 GB in the beginning and 3.4 GB in the end (delta: 690.0 MB). Free memory was 2.0 GB in the beginning and 705.5 MB in the end (delta: 1.3 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 11024]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 11024). Cancelled while BasicCegarLoop was constructing difference of abstraction (88742states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement), while ReachableStatesComputation was computing reachable states (20371 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 2223 locations, 1 error locations. TIMEOUT Result, 190.6s OverallTime, 10 OverallIterations, 4 TraceHistogramMax, 129.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8290 SDtfs, 73025 SDslu, 6795 SDs, 0 SdLazy, 82421 SolverSat, 27257 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 99.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18006 GetRequests, 17909 SyntacticMatches, 22 SemanticMatches, 75 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 6.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=88742occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 8.0s AutomataMinimizationTime, 9 MinimizatonAttempts, 1617 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.3s SsaConstructionTime, 3.5s SatisfiabilityAnalysisTime, 25.3s InterpolantComputationTime, 26449 NumberOfCodeBlocks, 26449 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 35378 ConstructedInterpolants, 0 QuantifiedInterpolants, 83709185 SizeOfPredicates, 2 NumberOfNonLiveVariables, 11311 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 20 InterpolantComputations, 11 PerfectInterpolantSequences, 2043/2125 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/Problem05_label22_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_16-24-44-505.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem05_label22_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_16-24-44-505.csv Completed graceful shutdown