java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem04_label24_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-dace188-m [2018-09-14 16:11:13,162 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-14 16:11:13,164 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-14 16:11:13,183 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-14 16:11:13,184 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-14 16:11:13,185 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-14 16:11:13,186 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-14 16:11:13,188 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-14 16:11:13,191 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-14 16:11:13,194 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-14 16:11:13,196 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-14 16:11:13,197 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-14 16:11:13,198 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-14 16:11:13,199 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-14 16:11:13,201 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-14 16:11:13,202 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-14 16:11:13,203 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-14 16:11:13,205 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-14 16:11:13,213 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-14 16:11:13,219 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-14 16:11:13,220 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-14 16:11:13,221 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-14 16:11:13,225 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-14 16:11:13,226 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-14 16:11:13,226 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-14 16:11:13,229 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-14 16:11:13,230 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-14 16:11:13,231 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-14 16:11:13,234 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-14 16:11:13,235 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-14 16:11:13,235 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-14 16:11:13,236 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-14 16:11:13,236 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-14 16:11:13,238 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-14 16:11:13,239 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-14 16:11:13,240 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-14 16:11:13,241 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 16:11:13,268 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-14 16:11:13,269 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-14 16:11:13,270 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-14 16:11:13,270 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-14 16:11:13,270 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-14 16:11:13,270 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-14 16:11:13,270 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-14 16:11:13,271 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-14 16:11:13,271 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-14 16:11:13,271 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-14 16:11:13,271 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-14 16:11:13,272 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-14 16:11:13,273 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-14 16:11:13,273 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-14 16:11:13,273 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-14 16:11:13,273 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-14 16:11:13,273 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-14 16:11:13,274 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-14 16:11:13,274 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-14 16:11:13,274 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-14 16:11:13,274 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-14 16:11:13,274 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-14 16:11:13,275 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-14 16:11:13,275 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-14 16:11:13,275 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-14 16:11:13,275 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-14 16:11:13,278 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-14 16:11:13,278 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-14 16:11:13,279 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-14 16:11:13,279 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-14 16:11:13,279 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-14 16:11:13,279 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-14 16:11:13,279 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-14 16:11:13,349 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-14 16:11:13,364 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-14 16:11:13,371 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-14 16:11:13,373 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-14 16:11:13,374 INFO L276 PluginConnector]: CDTParser initialized [2018-09-14 16:11:13,375 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem04_label24_true-unreach-call_false-termination.c [2018-09-14 16:11:13,725 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d47c9ce36/b0aa4b5ba7eb40989c3906b7530a31b7/FLAG6958a713a [2018-09-14 16:11:14,209 INFO L277 CDTParser]: Found 1 translation units. [2018-09-14 16:11:14,209 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem04_label24_true-unreach-call_false-termination.c [2018-09-14 16:11:14,245 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d47c9ce36/b0aa4b5ba7eb40989c3906b7530a31b7/FLAG6958a713a [2018-09-14 16:11:14,267 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d47c9ce36/b0aa4b5ba7eb40989c3906b7530a31b7 [2018-09-14 16:11:14,279 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-14 16:11:14,285 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-14 16:11:14,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-14 16:11:14,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-14 16:11:14,295 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-14 16:11:14,296 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 04:11:14" (1/1) ... [2018-09-14 16:11:14,299 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1119bd7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:11:14, skipping insertion in model container [2018-09-14 16:11:14,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 04:11:14" (1/1) ... [2018-09-14 16:11:14,314 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-14 16:11:15,687 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 16:11:15,709 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-14 16:11:16,434 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-14 16:11:16,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:11:16 WrapperNode [2018-09-14 16:11:16,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-14 16:11:16,576 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-14 16:11:16,577 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-14 16:11:16,577 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-14 16:11:16,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:11:16" (1/1) ... [2018-09-14 16:11:16,653 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:11:16" (1/1) ... [2018-09-14 16:11:16,728 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-14 16:11:16,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-14 16:11:16,729 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-14 16:11:16,729 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-14 16:11:17,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:11:16" (1/1) ... [2018-09-14 16:11:17,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:11:16" (1/1) ... [2018-09-14 16:11:17,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:11:16" (1/1) ... [2018-09-14 16:11:17,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:11:16" (1/1) ... [2018-09-14 16:11:17,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:11:16" (1/1) ... [2018-09-14 16:11:17,246 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:11:16" (1/1) ... [2018-09-14 16:11:17,269 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:11:16" (1/1) ... [2018-09-14 16:11:17,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-14 16:11:17,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-14 16:11:17,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-14 16:11:17,294 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-14 16:11:17,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:11:16" (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 16:11:17,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-14 16:11:17,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-14 16:11:17,373 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-14 16:11:17,373 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-14 16:11:17,373 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-14 16:11:17,373 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-14 16:11:17,373 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-14 16:11:17,373 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-14 16:11:17,374 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-14 16:11:17,374 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-14 16:11:17,374 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-14 16:11:17,374 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-14 16:11:17,375 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-14 16:11:17,375 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-14 16:11:27,530 INFO L353 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-14 16:11:27,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 04:11:27 BoogieIcfgContainer [2018-09-14 16:11:27,532 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-14 16:11:27,533 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-14 16:11:27,533 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-14 16:11:27,536 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-14 16:11:27,536 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 04:11:14" (1/3) ... [2018-09-14 16:11:27,537 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66bc4ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 04:11:27, skipping insertion in model container [2018-09-14 16:11:27,537 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 04:11:16" (2/3) ... [2018-09-14 16:11:27,538 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66bc4ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 04:11:27, skipping insertion in model container [2018-09-14 16:11:27,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 04:11:27" (3/3) ... [2018-09-14 16:11:27,540 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem04_label24_true-unreach-call_false-termination.c [2018-09-14 16:11:27,549 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-14 16:11:27,558 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-14 16:11:27,624 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-14 16:11:27,625 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-14 16:11:27,625 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-14 16:11:27,625 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-14 16:11:27,626 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-14 16:11:27,626 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-14 16:11:27,626 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-14 16:11:27,626 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-14 16:11:27,626 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-14 16:11:27,683 INFO L276 IsEmpty]: Start isEmpty. Operand 907 states. [2018-09-14 16:11:27,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2018-09-14 16:11:27,740 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:11:27,742 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:11:27,743 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:11:27,749 INFO L82 PathProgramCache]: Analyzing trace with hash -1324754322, now seen corresponding path program 1 times [2018-09-14 16:11:27,752 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:11:27,808 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:11:27,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:11:27,809 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:11:27,809 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:11:28,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:11:29,266 WARN L178 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 16:11:30,337 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 16:11:30,339 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 16:11:30,339 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-14 16:11:30,339 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:11:30,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 16:11:30,360 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 16:11:30,360 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 16:11:30,363 INFO L87 Difference]: Start difference. First operand 907 states. Second operand 3 states. [2018-09-14 16:11:36,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:11:36,339 INFO L93 Difference]: Finished difference Result 2647 states and 5102 transitions. [2018-09-14 16:11:36,340 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 16:11:36,341 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 816 [2018-09-14 16:11:36,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:11:36,386 INFO L225 Difference]: With dead ends: 2647 [2018-09-14 16:11:36,386 INFO L226 Difference]: Without dead ends: 1738 [2018-09-14 16:11:36,399 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 5 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-14 16:11:36,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2018-09-14 16:11:36,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1738. [2018-09-14 16:11:36,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1738 states. [2018-09-14 16:11:36,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 3145 transitions. [2018-09-14 16:11:36,576 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 3145 transitions. Word has length 816 [2018-09-14 16:11:36,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:11:36,582 INFO L480 AbstractCegarLoop]: Abstraction has 1738 states and 3145 transitions. [2018-09-14 16:11:36,583 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 16:11:36,583 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 3145 transitions. [2018-09-14 16:11:36,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 826 [2018-09-14 16:11:36,625 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:11:36,626 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:11:36,626 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:11:36,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1018956083, now seen corresponding path program 1 times [2018-09-14 16:11:36,628 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:11:36,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:11:36,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:11:36,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:11:36,630 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:11:36,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:11:38,544 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:11:38,545 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 16:11:38,545 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-14 16:11:38,545 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:11:38,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-14 16:11:38,548 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-14 16:11:38,548 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 16:11:38,548 INFO L87 Difference]: Start difference. First operand 1738 states and 3145 transitions. Second operand 4 states. [2018-09-14 16:11:48,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:11:48,787 INFO L93 Difference]: Finished difference Result 6810 states and 12580 transitions. [2018-09-14 16:11:48,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-14 16:11:48,790 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 825 [2018-09-14 16:11:48,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:11:48,823 INFO L225 Difference]: With dead ends: 6810 [2018-09-14 16:11:48,824 INFO L226 Difference]: Without dead ends: 5078 [2018-09-14 16:11:48,832 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-14 16:11:48,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5078 states. [2018-09-14 16:11:48,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5078 to 5078. [2018-09-14 16:11:48,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5078 states. [2018-09-14 16:11:48,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5078 states to 5078 states and 8713 transitions. [2018-09-14 16:11:48,985 INFO L78 Accepts]: Start accepts. Automaton has 5078 states and 8713 transitions. Word has length 825 [2018-09-14 16:11:48,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:11:48,987 INFO L480 AbstractCegarLoop]: Abstraction has 5078 states and 8713 transitions. [2018-09-14 16:11:48,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-14 16:11:48,988 INFO L276 IsEmpty]: Start isEmpty. Operand 5078 states and 8713 transitions. [2018-09-14 16:11:49,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 833 [2018-09-14 16:11:49,014 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:11:49,014 INFO L376 BasicCegarLoop]: trace histogram [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] [2018-09-14 16:11:49,015 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:11:49,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1199756249, now seen corresponding path program 1 times [2018-09-14 16:11:49,016 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:11:49,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:11:49,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:11:49,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:11:49,017 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:11:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:11:49,362 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-09-14 16:11:50,248 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:11:50,249 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-14 16:11:50,249 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-14 16:11:50,249 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:11:50,250 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-14 16:11:50,251 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-14 16:11:50,251 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-14 16:11:50,251 INFO L87 Difference]: Start difference. First operand 5078 states and 8713 transitions. Second operand 6 states. [2018-09-14 16:11:57,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:11:57,499 INFO L93 Difference]: Finished difference Result 12027 states and 20665 transitions. [2018-09-14 16:11:57,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 16:11:57,502 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 832 [2018-09-14 16:11:57,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:11:57,542 INFO L225 Difference]: With dead ends: 12027 [2018-09-14 16:11:57,542 INFO L226 Difference]: Without dead ends: 6955 [2018-09-14 16:11:57,557 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-14 16:11:57,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6955 states. [2018-09-14 16:11:57,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6955 to 6913. [2018-09-14 16:11:57,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6913 states. [2018-09-14 16:11:57,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6913 states to 6913 states and 11473 transitions. [2018-09-14 16:11:57,740 INFO L78 Accepts]: Start accepts. Automaton has 6913 states and 11473 transitions. Word has length 832 [2018-09-14 16:11:57,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:11:57,741 INFO L480 AbstractCegarLoop]: Abstraction has 6913 states and 11473 transitions. [2018-09-14 16:11:57,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-14 16:11:57,741 INFO L276 IsEmpty]: Start isEmpty. Operand 6913 states and 11473 transitions. [2018-09-14 16:11:57,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 853 [2018-09-14 16:11:57,786 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:11:57,786 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:57,787 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:11:57,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1202905796, now seen corresponding path program 1 times [2018-09-14 16:11:57,788 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:11:57,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:11:57,789 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:11:57,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:11:57,789 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:11:57,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:11:58,427 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:11:58,428 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:11:58,428 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 16:11:58,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:11:58,439 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:11:58,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:11:58,792 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:11:59,759 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-09-14 16:11:59,760 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:12:01,123 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2018-09-14 16:12:01,145 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 16:12:01,146 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-09-14 16:12:01,146 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:12:01,147 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 16:12:01,147 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 16:12:01,148 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-14 16:12:01,148 INFO L87 Difference]: Start difference. First operand 6913 states and 11473 transitions. Second operand 3 states. [2018-09-14 16:12:06,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:12:06,470 INFO L93 Difference]: Finished difference Result 20595 states and 35037 transitions. [2018-09-14 16:12:06,475 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 16:12:06,476 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 852 [2018-09-14 16:12:06,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:12:06,573 INFO L225 Difference]: With dead ends: 20595 [2018-09-14 16:12:06,573 INFO L226 Difference]: Without dead ends: 13688 [2018-09-14 16:12:06,598 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1709 GetRequests, 1699 SyntacticMatches, 5 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-09-14 16:12:06,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13688 states. [2018-09-14 16:12:06,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13688 to 13688. [2018-09-14 16:12:06,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13688 states. [2018-09-14 16:12:07,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13688 states to 13688 states and 20329 transitions. [2018-09-14 16:12:07,015 INFO L78 Accepts]: Start accepts. Automaton has 13688 states and 20329 transitions. Word has length 852 [2018-09-14 16:12:07,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:12:07,017 INFO L480 AbstractCegarLoop]: Abstraction has 13688 states and 20329 transitions. [2018-09-14 16:12:07,017 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 16:12:07,018 INFO L276 IsEmpty]: Start isEmpty. Operand 13688 states and 20329 transitions. [2018-09-14 16:12:07,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 930 [2018-09-14 16:12:07,074 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:12:07,075 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-14 16:12:07,075 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:12:07,076 INFO L82 PathProgramCache]: Analyzing trace with hash -681731128, now seen corresponding path program 1 times [2018-09-14 16:12:07,076 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:12:07,077 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:12:07,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:12:07,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:12:07,078 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:12:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:12:07,448 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 16:12:08,199 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 107 proven. 49 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 16:12:08,200 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:12:08,200 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 16:12:08,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:12:08,211 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:12:08,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:12:08,709 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:12:09,176 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-09-14 16:12:09,177 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:12:09,813 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 107 proven. 49 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 16:12:09,838 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 16:12:09,839 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-09-14 16:12:09,839 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:12:09,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 16:12:09,841 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 16:12:09,841 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-09-14 16:12:09,841 INFO L87 Difference]: Start difference. First operand 13688 states and 20329 transitions. Second operand 5 states. [2018-09-14 16:12:17,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:12:17,294 INFO L93 Difference]: Finished difference Result 34641 states and 54668 transitions. [2018-09-14 16:12:17,298 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 16:12:17,298 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 929 [2018-09-14 16:12:17,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:12:17,374 INFO L225 Difference]: With dead ends: 34641 [2018-09-14 16:12:17,375 INFO L226 Difference]: Without dead ends: 20959 [2018-09-14 16:12:17,414 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1867 GetRequests, 1853 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2018-09-14 16:12:17,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20959 states. [2018-09-14 16:12:17,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20959 to 20076. [2018-09-14 16:12:17,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20076 states. [2018-09-14 16:12:17,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20076 states to 20076 states and 29602 transitions. [2018-09-14 16:12:17,931 INFO L78 Accepts]: Start accepts. Automaton has 20076 states and 29602 transitions. Word has length 929 [2018-09-14 16:12:17,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:12:17,931 INFO L480 AbstractCegarLoop]: Abstraction has 20076 states and 29602 transitions. [2018-09-14 16:12:17,931 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 16:12:17,932 INFO L276 IsEmpty]: Start isEmpty. Operand 20076 states and 29602 transitions. [2018-09-14 16:12:18,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 983 [2018-09-14 16:12:18,013 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:12:18,014 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 16:12:18,014 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:12:18,015 INFO L82 PathProgramCache]: Analyzing trace with hash -804858676, now seen corresponding path program 1 times [2018-09-14 16:12:18,015 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:12:18,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:12:18,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:12:18,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:12:18,016 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:12:18,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:12:18,969 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 178 proven. 28 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2018-09-14 16:12:18,969 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:12:18,970 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 16:12:18,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:12:18,986 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:12:19,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:12:19,349 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:12:20,451 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 229 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-09-14 16:12:20,451 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:12:21,123 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 201 proven. 20 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-09-14 16:12:21,145 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:12:21,146 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 16:12:21,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:12:21,161 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:12:21,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:12:21,864 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:12:22,847 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 229 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2018-09-14 16:12:22,848 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:12:23,810 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 201 proven. 20 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-09-14 16:12:23,815 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 16:12:23,816 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 15 [2018-09-14 16:12:23,817 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 16:12:23,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 16:12:23,819 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 16:12:23,819 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2018-09-14 16:12:23,819 INFO L87 Difference]: Start difference. First operand 20076 states and 29602 transitions. Second operand 9 states. [2018-09-14 16:12:42,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:12:42,313 INFO L93 Difference]: Finished difference Result 61606 states and 102595 transitions. [2018-09-14 16:12:42,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-09-14 16:12:42,314 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 982 [2018-09-14 16:12:42,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:12:42,518 INFO L225 Difference]: With dead ends: 61606 [2018-09-14 16:12:42,518 INFO L226 Difference]: Without dead ends: 41536 [2018-09-14 16:12:42,603 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3984 GetRequests, 3942 SyntacticMatches, 2 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 394 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=352, Invalid=1370, Unknown=0, NotChecked=0, Total=1722 [2018-09-14 16:12:42,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41536 states. [2018-09-14 16:12:43,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41536 to 39012. [2018-09-14 16:12:43,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39012 states. [2018-09-14 16:12:43,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39012 states to 39012 states and 52069 transitions. [2018-09-14 16:12:43,750 INFO L78 Accepts]: Start accepts. Automaton has 39012 states and 52069 transitions. Word has length 982 [2018-09-14 16:12:43,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:12:43,750 INFO L480 AbstractCegarLoop]: Abstraction has 39012 states and 52069 transitions. [2018-09-14 16:12:43,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-14 16:12:43,751 INFO L276 IsEmpty]: Start isEmpty. Operand 39012 states and 52069 transitions. [2018-09-14 16:12:43,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1021 [2018-09-14 16:12:43,844 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:12:43,845 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 16:12:43,845 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:12:43,845 INFO L82 PathProgramCache]: Analyzing trace with hash 423107509, now seen corresponding path program 1 times [2018-09-14 16:12:43,846 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:12:43,846 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:12:43,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:12:43,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:12:43,847 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:12:43,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:12:44,246 WARN L178 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 16:12:45,116 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 195 proven. 85 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-09-14 16:12:45,116 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:12:45,116 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 16:12:45,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:12:45,125 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:12:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:12:45,431 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:12:46,034 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 164 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2018-09-14 16:12:46,034 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:12:46,746 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 195 proven. 85 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-09-14 16:12:46,769 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 16:12:46,770 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-14 16:12:46,770 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:12:46,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 16:12:46,771 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 16:12:46,772 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-09-14 16:12:46,772 INFO L87 Difference]: Start difference. First operand 39012 states and 52069 transitions. Second operand 5 states. [2018-09-14 16:12:54,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:12:54,016 INFO L93 Difference]: Finished difference Result 112584 states and 155083 transitions. [2018-09-14 16:12:54,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 16:12:54,016 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1020 [2018-09-14 16:12:54,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:12:54,243 INFO L225 Difference]: With dead ends: 112584 [2018-09-14 16:12:54,243 INFO L226 Difference]: Without dead ends: 73578 [2018-09-14 16:12:54,337 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2049 GetRequests, 2034 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2018-09-14 16:12:54,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73578 states. [2018-09-14 16:12:55,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73578 to 72423. [2018-09-14 16:12:55,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72423 states. [2018-09-14 16:12:55,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72423 states to 72423 states and 95369 transitions. [2018-09-14 16:12:55,787 INFO L78 Accepts]: Start accepts. Automaton has 72423 states and 95369 transitions. Word has length 1020 [2018-09-14 16:12:55,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:12:55,788 INFO L480 AbstractCegarLoop]: Abstraction has 72423 states and 95369 transitions. [2018-09-14 16:12:55,788 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 16:12:55,788 INFO L276 IsEmpty]: Start isEmpty. Operand 72423 states and 95369 transitions. [2018-09-14 16:12:55,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1073 [2018-09-14 16:12:55,913 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:12:55,914 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-09-14 16:12:55,914 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:12:55,915 INFO L82 PathProgramCache]: Analyzing trace with hash -764955827, now seen corresponding path program 1 times [2018-09-14 16:12:55,915 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:12:55,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:12:55,916 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:12:55,916 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:12:55,916 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:12:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:12:56,381 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 16:12:57,085 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 253 proven. 140 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-14 16:12:57,085 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:12:57,085 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:12:57,093 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:12:57,093 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:12:57,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:12:57,402 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:12:58,185 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 377 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-09-14 16:12:58,185 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:12:59,066 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 359 proven. 20 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-09-14 16:12:59,089 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:12:59,089 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 16:12:59,104 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:12:59,105 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:12:59,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:12:59,825 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:13:00,309 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 377 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-09-14 16:13:00,309 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:13:01,175 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 359 proven. 20 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-09-14 16:13:01,178 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 16:13:01,179 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5, 5, 5] total 20 [2018-09-14 16:13:01,180 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 16:13:01,181 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-14 16:13:01,182 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-14 16:13:01,182 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=317, Unknown=0, NotChecked=0, Total=380 [2018-09-14 16:13:01,183 INFO L87 Difference]: Start difference. First operand 72423 states and 95369 transitions. Second operand 13 states. [2018-09-14 16:13:16,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:13:16,556 INFO L93 Difference]: Finished difference Result 153688 states and 216455 transitions. [2018-09-14 16:13:16,556 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2018-09-14 16:13:16,556 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 1072 [2018-09-14 16:13:16,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:13:16,857 INFO L225 Difference]: With dead ends: 153688 [2018-09-14 16:13:16,857 INFO L226 Difference]: Without dead ends: 81271 [2018-09-14 16:13:16,977 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4363 GetRequests, 4309 SyntacticMatches, 3 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 645 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=555, Invalid=2201, Unknown=0, NotChecked=0, Total=2756 [2018-09-14 16:13:17,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81271 states. [2018-09-14 16:13:18,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81271 to 78847. [2018-09-14 16:13:18,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78847 states. [2018-09-14 16:13:18,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78847 states to 78847 states and 101981 transitions. [2018-09-14 16:13:18,420 INFO L78 Accepts]: Start accepts. Automaton has 78847 states and 101981 transitions. Word has length 1072 [2018-09-14 16:13:18,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:13:18,421 INFO L480 AbstractCegarLoop]: Abstraction has 78847 states and 101981 transitions. [2018-09-14 16:13:18,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-14 16:13:18,421 INFO L276 IsEmpty]: Start isEmpty. Operand 78847 states and 101981 transitions. [2018-09-14 16:13:18,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1143 [2018-09-14 16:13:18,643 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:13:18,644 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 16:13:18,644 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:13:18,649 INFO L82 PathProgramCache]: Analyzing trace with hash 2057600705, now seen corresponding path program 1 times [2018-09-14 16:13:18,649 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:13:18,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:13:18,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:13:18,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:13:18,650 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:13:18,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:13:19,149 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 16:13:20,670 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 317 proven. 120 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-09-14 16:13:20,671 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:13:20,671 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:13:20,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:13:20,678 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:13:21,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:13:21,019 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:13:22,142 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 321 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2018-09-14 16:13:22,142 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:13:22,889 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 317 proven. 120 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2018-09-14 16:13:22,910 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 16:13:22,911 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 11 [2018-09-14 16:13:22,912 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:13:22,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 16:13:22,913 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 16:13:22,913 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2018-09-14 16:13:22,913 INFO L87 Difference]: Start difference. First operand 78847 states and 101981 transitions. Second operand 5 states. [2018-09-14 16:13:30,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:13:30,747 INFO L93 Difference]: Finished difference Result 194449 states and 260997 transitions. [2018-09-14 16:13:30,747 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-14 16:13:30,748 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1142 [2018-09-14 16:13:30,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:13:31,225 INFO L225 Difference]: With dead ends: 194449 [2018-09-14 16:13:31,226 INFO L226 Difference]: Without dead ends: 115608 [2018-09-14 16:13:31,426 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2291 GetRequests, 2278 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-09-14 16:13:31,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115608 states. [2018-09-14 16:13:34,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115608 to 114776. [2018-09-14 16:13:34,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114776 states. [2018-09-14 16:13:34,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114776 states to 114776 states and 143946 transitions. [2018-09-14 16:13:34,290 INFO L78 Accepts]: Start accepts. Automaton has 114776 states and 143946 transitions. Word has length 1142 [2018-09-14 16:13:34,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:13:34,291 INFO L480 AbstractCegarLoop]: Abstraction has 114776 states and 143946 transitions. [2018-09-14 16:13:34,291 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 16:13:34,291 INFO L276 IsEmpty]: Start isEmpty. Operand 114776 states and 143946 transitions. [2018-09-14 16:13:34,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1191 [2018-09-14 16:13:34,497 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:13:34,498 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:13:34,498 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:13:34,499 INFO L82 PathProgramCache]: Analyzing trace with hash -326040457, now seen corresponding path program 1 times [2018-09-14 16:13:34,499 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:13:34,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:13:34,500 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:13:34,500 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:13:34,500 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:13:34,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:13:36,764 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 478 proven. 91 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2018-09-14 16:13:36,765 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:13:36,765 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-09-14 16:13:36,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:13:36,780 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:13:37,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:13:37,172 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:13:37,970 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 602 proven. 2 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2018-09-14 16:13:37,971 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:13:38,932 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 478 proven. 91 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2018-09-14 16:13:38,955 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:13:38,956 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 16:13:38,972 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:13:38,973 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:13:39,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:13:39,833 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:13:40,805 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 602 proven. 2 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2018-09-14 16:13:40,806 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:13:41,482 INFO L134 CoverageAnalysis]: Checked inductivity of 772 backedges. 478 proven. 91 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2018-09-14 16:13:41,486 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 16:13:41,487 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 13 [2018-09-14 16:13:41,488 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 16:13:41,490 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 16:13:41,490 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 16:13:41,490 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-14 16:13:41,491 INFO L87 Difference]: Start difference. First operand 114776 states and 143946 transitions. Second operand 9 states. [2018-09-14 16:13:55,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:13:55,051 INFO L93 Difference]: Finished difference Result 275130 states and 352491 transitions. [2018-09-14 16:13:55,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-14 16:13:55,051 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1190 [2018-09-14 16:13:55,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:13:55,658 INFO L225 Difference]: With dead ends: 275130 [2018-09-14 16:13:55,658 INFO L226 Difference]: Without dead ends: 161195 [2018-09-14 16:13:55,859 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4770 GetRequests, 4752 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2018-09-14 16:13:55,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161195 states. [2018-09-14 16:13:58,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161195 to 160275. [2018-09-14 16:13:58,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160275 states. [2018-09-14 16:13:59,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160275 states to 160275 states and 203230 transitions. [2018-09-14 16:13:59,173 INFO L78 Accepts]: Start accepts. Automaton has 160275 states and 203230 transitions. Word has length 1190 [2018-09-14 16:13:59,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:13:59,174 INFO L480 AbstractCegarLoop]: Abstraction has 160275 states and 203230 transitions. [2018-09-14 16:13:59,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-14 16:13:59,174 INFO L276 IsEmpty]: Start isEmpty. Operand 160275 states and 203230 transitions. [2018-09-14 16:13:59,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1283 [2018-09-14 16:13:59,556 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:13:59,557 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:13:59,557 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:13:59,557 INFO L82 PathProgramCache]: Analyzing trace with hash 134574861, now seen corresponding path program 1 times [2018-09-14 16:13:59,558 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:13:59,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:13:59,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:13:59,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:13:59,559 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:13:59,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:14:00,194 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-14 16:14:02,066 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 454 proven. 199 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-09-14 16:14:02,067 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:14:02,067 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:14:02,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:14:02,076 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:14:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:14:02,449 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:14:03,511 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 458 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2018-09-14 16:14:03,512 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:14:04,512 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 454 proven. 199 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2018-09-14 16:14:04,534 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-14 16:14:04,535 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 10 [2018-09-14 16:14:04,535 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:14:04,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-14 16:14:04,536 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-14 16:14:04,536 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-09-14 16:14:04,536 INFO L87 Difference]: Start difference. First operand 160275 states and 203230 transitions. Second operand 5 states. [2018-09-14 16:14:13,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:14:13,829 INFO L93 Difference]: Finished difference Result 326491 states and 421397 transitions. [2018-09-14 16:14:13,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-14 16:14:13,830 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1282 [2018-09-14 16:14:13,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:14:14,441 INFO L225 Difference]: With dead ends: 326491 [2018-09-14 16:14:14,442 INFO L226 Difference]: Without dead ends: 167057 [2018-09-14 16:14:14,659 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2575 GetRequests, 2559 SyntacticMatches, 5 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2018-09-14 16:14:14,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167057 states. [2018-09-14 16:14:17,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167057 to 161581. [2018-09-14 16:14:17,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161581 states. [2018-09-14 16:14:18,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161581 states to 161581 states and 203513 transitions. [2018-09-14 16:14:18,028 INFO L78 Accepts]: Start accepts. Automaton has 161581 states and 203513 transitions. Word has length 1282 [2018-09-14 16:14:18,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:14:18,028 INFO L480 AbstractCegarLoop]: Abstraction has 161581 states and 203513 transitions. [2018-09-14 16:14:18,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-14 16:14:18,028 INFO L276 IsEmpty]: Start isEmpty. Operand 161581 states and 203513 transitions. [2018-09-14 16:14:18,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1329 [2018-09-14 16:14:18,327 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:14:18,328 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-14 16:14:18,328 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:14:18,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1395478492, now seen corresponding path program 1 times [2018-09-14 16:14:18,329 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:14:18,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:14:18,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:14:18,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:14:18,330 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:14:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:14:25,784 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 276 proven. 404 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-14 16:14:25,784 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:14:25,784 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:14:25,792 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:14:25,792 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:14:26,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:14:26,161 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:14:27,049 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 506 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2018-09-14 16:14:27,050 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:14:28,165 INFO L134 CoverageAnalysis]: Checked inductivity of 680 backedges. 506 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2018-09-14 16:14:28,187 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-14 16:14:28,188 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-09-14 16:14:28,188 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-14 16:14:28,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-14 16:14:28,190 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-14 16:14:28,190 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-09-14 16:14:28,190 INFO L87 Difference]: Start difference. First operand 161581 states and 203513 transitions. Second operand 3 states. [2018-09-14 16:14:34,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-14 16:14:34,558 INFO L93 Difference]: Finished difference Result 322301 states and 406552 transitions. [2018-09-14 16:14:34,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-14 16:14:34,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1328 [2018-09-14 16:14:34,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-14 16:14:34,962 INFO L225 Difference]: With dead ends: 322301 [2018-09-14 16:14:34,962 INFO L226 Difference]: Without dead ends: 161561 [2018-09-14 16:14:35,151 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2671 GetRequests, 2659 SyntacticMatches, 5 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2018-09-14 16:14:35,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161561 states. [2018-09-14 16:14:37,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161561 to 159788. [2018-09-14 16:14:37,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159788 states. [2018-09-14 16:14:37,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159788 states to 159788 states and 195348 transitions. [2018-09-14 16:14:37,376 INFO L78 Accepts]: Start accepts. Automaton has 159788 states and 195348 transitions. Word has length 1328 [2018-09-14 16:14:37,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-14 16:14:37,377 INFO L480 AbstractCegarLoop]: Abstraction has 159788 states and 195348 transitions. [2018-09-14 16:14:37,377 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-14 16:14:37,377 INFO L276 IsEmpty]: Start isEmpty. Operand 159788 states and 195348 transitions. [2018-09-14 16:14:38,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1859 [2018-09-14 16:14:38,368 INFO L368 BasicCegarLoop]: Found error trace [2018-09-14 16:14:38,370 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-14 16:14:38,370 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_output4Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-14 16:14:38,371 INFO L82 PathProgramCache]: Analyzing trace with hash -492415363, now seen corresponding path program 1 times [2018-09-14 16:14:38,371 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-14 16:14:38,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:14:38,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:14:38,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-14 16:14:38,372 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-14 16:14:38,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:14:41,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1641 backedges. 1310 proven. 2 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2018-09-14 16:14:41,669 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:14:41,669 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 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-14 16:14:41,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:14:41,679 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:14:42,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:14:42,214 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:14:43,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1641 backedges. 1310 proven. 2 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2018-09-14 16:14:43,472 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-14 16:14:44,901 INFO L134 CoverageAnalysis]: Checked inductivity of 1641 backedges. 1310 proven. 2 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2018-09-14 16:14:44,923 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-14 16:14:44,923 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 15 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 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-14 16:14:44,940 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-14 16:14:44,941 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-14 16:14:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-14 16:14:46,172 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-14 16:14:47,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1641 backedges. 1310 proven. 2 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2018-09-14 16:14:47,331 INFO L316 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2018-09-14 16:14:48,921 INFO L134 CoverageAnalysis]: Checked inductivity of 1641 backedges. 1310 proven. 2 refuted. 0 times theorem prover too weak. 329 trivial. 0 not checked. [2018-09-14 16:14:48,926 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-14 16:14:48,927 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-14 16:14:48,928 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-14 16:14:48,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-14 16:14:48,930 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-14 16:14:48,930 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-14 16:14:48,930 INFO L87 Difference]: Start difference. First operand 159788 states and 195348 transitions. Second operand 9 states. [2018-09-14 16:14:48,931 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-09-14 16:14:48,931 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-14 16:14:48,936 WARN L206 ceAbstractionStarter]: Timeout [2018-09-14 16:14:48,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 04:14:48 BoogieIcfgContainer [2018-09-14 16:14:48,937 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-14 16:14:48,937 INFO L168 Benchmark]: Toolchain (without parser) took 214657.86 ms. Allocated memory was 1.5 GB in the beginning and 4.9 GB in the end (delta: 3.4 GB). Free memory was 1.4 GB in the beginning and 2.6 GB in the end (delta: -1.2 GB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-09-14 16:14:48,938 INFO L168 Benchmark]: CDTParser took 0.20 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 16:14:48,939 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2289.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 222.0 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. [2018-09-14 16:14:48,940 INFO L168 Benchmark]: Boogie Procedure Inliner took 151.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-14 16:14:48,941 INFO L168 Benchmark]: Boogie Preprocessor took 564.50 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 833.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. [2018-09-14 16:14:48,942 INFO L168 Benchmark]: RCFGBuilder took 10238.69 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 191.9 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -170.9 MB). Peak memory consumption was 707.8 MB. Max. memory is 7.1 GB. [2018-09-14 16:14:48,943 INFO L168 Benchmark]: TraceAbstraction took 201403.77 ms. Allocated memory was 2.5 GB in the beginning and 4.9 GB in the end (delta: 2.4 GB). Free memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: -160.0 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-09-14 16:14:48,948 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2289.78 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 222.0 MB). Peak memory consumption was 222.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 151.98 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 564.50 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 833.1 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 84.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10238.69 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 191.9 MB). Free memory was 2.2 GB in the beginning and 2.4 GB in the end (delta: -170.9 MB). Peak memory consumption was 707.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 201403.77 ms. Allocated memory was 2.5 GB in the beginning and 4.9 GB in the end (delta: 2.4 GB). Free memory was 2.4 GB in the beginning and 2.6 GB in the end (delta: -160.0 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 4766]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 4766). Cancelled while BasicCegarLoop was constructing difference of abstraction (159788states) and FLOYD_HOARE automaton (currently 2 states, 9 states before enhancement), while ReachableStatesComputation was computing reachable states (1 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 907 locations, 1 error locations. TIMEOUT Result, 201.3s OverallTime, 13 OverallIterations, 6 TraceHistogramMax, 118.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6149 SDtfs, 45877 SDslu, 2326 SDs, 0 SdLazy, 70678 SolverSat, 24034 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 83.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 33742 GetRequests, 33517 SyntacticMatches, 46 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1282 ImplicationChecksByTransitivity, 9.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=161581occurred in iteration=11, 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: 17.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 16029 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.5s SsaConstructionTime, 7.3s SatisfiabilityAnalysisTime, 37.1s InterpolantComputationTime, 30885 NumberOfCodeBlocks, 30885 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 47601 ConstructedInterpolants, 0 QuantifiedInterpolants, 96716140 SizeOfPredicates, 18 NumberOfNonLiveVariables, 23301 ConjunctsInSsa, 94 ConjunctsInUnsatCore, 41 InterpolantComputations, 11 PerfectInterpolantSequences, 20617/22472 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem04_label24_true-unreach-call_false-termination.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-14_16-14-48-962.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem04_label24_true-unreach-call_false-termination.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-14_16-14-48-962.csv Completed graceful shutdown