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/Problem19_label48_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 12:35:57,430 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 12:35:57,432 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 12:35:57,444 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 12:35:57,445 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 12:35:57,446 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 12:35:57,447 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 12:35:57,449 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 12:35:57,450 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 12:35:57,451 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 12:35:57,452 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 12:35:57,452 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 12:35:57,453 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 12:35:57,454 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 12:35:57,455 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 12:35:57,456 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 12:35:57,457 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 12:35:57,460 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 12:35:57,466 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 12:35:57,470 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 12:35:57,472 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 12:35:57,473 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 12:35:57,477 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 12:35:57,480 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 12:35:57,480 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 12:35:57,481 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 12:35:57,482 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 12:35:57,486 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 12:35:57,487 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 12:35:57,488 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 12:35:57,488 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 12:35:57,491 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 12:35:57,491 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 12:35:57,491 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 12:35:57,492 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 12:35:57,493 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 12:35:57,493 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-18 12:35:57,521 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 12:35:57,522 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 12:35:57,523 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 12:35:57,523 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 12:35:57,523 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 12:35:57,524 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 12:35:57,524 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 12:35:57,524 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 12:35:57,524 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 12:35:57,524 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 12:35:57,525 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 12:35:57,525 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 12:35:57,526 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 12:35:57,526 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 12:35:57,526 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 12:35:57,526 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 12:35:57,527 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 12:35:57,528 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 12:35:57,528 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 12:35:57,528 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 12:35:57,528 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 12:35:57,529 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 12:35:57,529 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 12:35:57,529 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 12:35:57,529 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 12:35:57,529 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 12:35:57,530 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 12:35:57,530 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 12:35:57,530 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 12:35:57,530 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 12:35:57,530 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 12:35:57,530 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 12:35:57,531 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 12:35:57,531 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 12:35:57,578 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 12:35:57,590 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 12:35:57,594 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 12:35:57,596 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 12:35:57,596 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 12:35:57,597 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label48_true-unreach-call.c [2018-09-18 12:35:57,955 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee8b41410/f9aff083304d4ad7a08c315d1174fedd/FLAGf7f7d1ab8 [2018-09-18 12:35:58,499 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 12:35:58,500 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label48_true-unreach-call.c [2018-09-18 12:35:58,546 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee8b41410/f9aff083304d4ad7a08c315d1174fedd/FLAGf7f7d1ab8 [2018-09-18 12:35:58,566 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee8b41410/f9aff083304d4ad7a08c315d1174fedd [2018-09-18 12:35:58,579 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 12:35:58,584 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 12:35:58,585 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 12:35:58,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 12:35:58,593 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 12:35:58,594 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:35:58" (1/1) ... [2018-09-18 12:35:58,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43a96985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:35:58, skipping insertion in model container [2018-09-18 12:35:58,598 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:35:58" (1/1) ... [2018-09-18 12:35:58,610 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 12:36:00,643 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:36:00,662 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 12:36:01,864 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:36:02,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:36:02 WrapperNode [2018-09-18 12:36:02,441 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 12:36:02,442 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 12:36:02,443 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 12:36:02,443 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 12:36:02,455 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:36:02" (1/1) ... [2018-09-18 12:36:02,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:36:02" (1/1) ... [2018-09-18 12:36:02,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 12:36:02,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 12:36:02,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 12:36:02,794 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 12:36:03,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:36:02" (1/1) ... [2018-09-18 12:36:03,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:36:02" (1/1) ... [2018-09-18 12:36:03,986 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:36:02" (1/1) ... [2018-09-18 12:36:03,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:36:02" (1/1) ... [2018-09-18 12:36:04,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:36:02" (1/1) ... [2018-09-18 12:36:04,334 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:36:02" (1/1) ... [2018-09-18 12:36:04,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:36:02" (1/1) ... [2018-09-18 12:36:04,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 12:36:04,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 12:36:04,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 12:36:04,571 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 12:36:04,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:36:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 12:36:04,647 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 12:36:04,647 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 12:36:04,647 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-09-18 12:36:04,648 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-09-18 12:36:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-09-18 12:36:04,648 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-09-18 12:36:04,648 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 12:36:04,648 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 12:36:04,649 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 12:36:04,649 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 12:36:04,649 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 12:36:04,649 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 12:36:04,649 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 12:36:04,650 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 12:36:04,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 12:36:04,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 12:36:04,651 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 12:36:04,651 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 12:36:24,023 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 12:36:24,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:36:24 BoogieIcfgContainer [2018-09-18 12:36:24,024 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 12:36:24,025 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 12:36:24,025 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 12:36:24,028 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 12:36:24,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 12:35:58" (1/3) ... [2018-09-18 12:36:24,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32c5bf2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:36:24, skipping insertion in model container [2018-09-18 12:36:24,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:36:02" (2/3) ... [2018-09-18 12:36:24,030 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32c5bf2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:36:24, skipping insertion in model container [2018-09-18 12:36:24,030 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:36:24" (3/3) ... [2018-09-18 12:36:24,032 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label48_true-unreach-call.c [2018-09-18 12:36:24,043 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 12:36:24,057 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 12:36:24,144 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 12:36:24,145 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 12:36:24,145 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 12:36:24,146 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 12:36:24,146 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 12:36:24,146 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 12:36:24,146 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 12:36:24,146 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 12:36:24,146 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 12:36:24,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-09-18 12:36:24,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2018-09-18 12:36:24,216 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:36:24,218 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] [2018-09-18 12:36:24,219 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:36:24,225 INFO L82 PathProgramCache]: Analyzing trace with hash 1378870764, now seen corresponding path program 1 times [2018-09-18 12:36:24,228 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:36:24,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:36:24,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:36:24,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:36:24,288 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:36:24,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:36:24,871 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-09-18 12:36:24,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:36:24,907 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:36:24,907 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 12:36:24,907 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:36:24,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 12:36:24,931 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 12:36:24,931 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:36:24,934 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 4 states. [2018-09-18 12:36:48,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:36:48,222 INFO L93 Difference]: Finished difference Result 6465 states and 12332 transitions. [2018-09-18 12:36:48,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 12:36:48,231 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 72 [2018-09-18 12:36:48,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:36:48,291 INFO L225 Difference]: With dead ends: 6465 [2018-09-18 12:36:48,291 INFO L226 Difference]: Without dead ends: 4681 [2018-09-18 12:36:48,307 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:36:48,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4681 states. [2018-09-18 12:36:48,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4681 to 3200. [2018-09-18 12:36:48,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3200 states. [2018-09-18 12:36:48,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3200 states to 3200 states and 5132 transitions. [2018-09-18 12:36:48,553 INFO L78 Accepts]: Start accepts. Automaton has 3200 states and 5132 transitions. Word has length 72 [2018-09-18 12:36:48,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:36:48,554 INFO L480 AbstractCegarLoop]: Abstraction has 3200 states and 5132 transitions. [2018-09-18 12:36:48,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 12:36:48,554 INFO L276 IsEmpty]: Start isEmpty. Operand 3200 states and 5132 transitions. [2018-09-18 12:36:48,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2018-09-18 12:36:48,575 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:36:48,575 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:36:48,575 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:36:48,576 INFO L82 PathProgramCache]: Analyzing trace with hash -1394303167, now seen corresponding path program 1 times [2018-09-18 12:36:48,576 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:36:48,577 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:36:48,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:36:48,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:36:48,580 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:36:48,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:36:49,328 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:36:49,749 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:36:49,749 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:36:49,750 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:36:49,750 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:36:49,753 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:36:49,754 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:36:49,754 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:36:49,755 INFO L87 Difference]: Start difference. First operand 3200 states and 5132 transitions. Second operand 6 states. [2018-09-18 12:37:18,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:37:18,408 INFO L93 Difference]: Finished difference Result 12097 states and 19723 transitions. [2018-09-18 12:37:18,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 12:37:18,411 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 144 [2018-09-18 12:37:18,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:37:18,463 INFO L225 Difference]: With dead ends: 12097 [2018-09-18 12:37:18,463 INFO L226 Difference]: Without dead ends: 8903 [2018-09-18 12:37:18,477 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:37:18,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8903 states. [2018-09-18 12:37:18,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8903 to 8846. [2018-09-18 12:37:18,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8846 states. [2018-09-18 12:37:18,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8846 states to 8846 states and 12708 transitions. [2018-09-18 12:37:18,718 INFO L78 Accepts]: Start accepts. Automaton has 8846 states and 12708 transitions. Word has length 144 [2018-09-18 12:37:18,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:37:18,719 INFO L480 AbstractCegarLoop]: Abstraction has 8846 states and 12708 transitions. [2018-09-18 12:37:18,719 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:37:18,719 INFO L276 IsEmpty]: Start isEmpty. Operand 8846 states and 12708 transitions. [2018-09-18 12:37:18,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2018-09-18 12:37:18,726 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:37:18,726 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:37:18,727 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:37:18,727 INFO L82 PathProgramCache]: Analyzing trace with hash -322669480, now seen corresponding path program 1 times [2018-09-18 12:37:18,727 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:37:18,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:37:18,728 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:37:18,728 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:37:18,729 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:37:18,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:37:18,984 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:37:19,193 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:37:19,193 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:37:19,193 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:37:19,193 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:37:19,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:37:19,194 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:37:19,194 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:37:19,195 INFO L87 Difference]: Start difference. First operand 8846 states and 12708 transitions. Second operand 6 states. [2018-09-18 12:37:44,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:37:44,832 INFO L93 Difference]: Finished difference Result 29443 states and 43443 transitions. [2018-09-18 12:37:44,838 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 12:37:44,839 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 146 [2018-09-18 12:37:44,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:37:44,918 INFO L225 Difference]: With dead ends: 29443 [2018-09-18 12:37:44,919 INFO L226 Difference]: Without dead ends: 20603 [2018-09-18 12:37:44,958 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:37:44,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20603 states. [2018-09-18 12:37:45,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20603 to 20444. [2018-09-18 12:37:45,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20444 states. [2018-09-18 12:37:45,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20444 states to 20444 states and 28690 transitions. [2018-09-18 12:37:45,450 INFO L78 Accepts]: Start accepts. Automaton has 20444 states and 28690 transitions. Word has length 146 [2018-09-18 12:37:45,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:37:45,450 INFO L480 AbstractCegarLoop]: Abstraction has 20444 states and 28690 transitions. [2018-09-18 12:37:45,451 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:37:45,451 INFO L276 IsEmpty]: Start isEmpty. Operand 20444 states and 28690 transitions. [2018-09-18 12:37:45,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2018-09-18 12:37:45,455 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:37:45,455 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:37:45,455 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:37:45,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1699491839, now seen corresponding path program 1 times [2018-09-18 12:37:45,456 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:37:45,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:37:45,457 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:37:45,457 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:37:45,457 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:37:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:37:45,979 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:37:45,979 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:37:45,979 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:37:45,979 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:37:45,982 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:37:45,982 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:37:45,982 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:37:45,982 INFO L87 Difference]: Start difference. First operand 20444 states and 28690 transitions. Second operand 6 states. [2018-09-18 12:38:11,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:38:11,327 INFO L93 Difference]: Finished difference Result 62290 states and 89746 transitions. [2018-09-18 12:38:11,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-18 12:38:11,327 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 154 [2018-09-18 12:38:11,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:38:11,481 INFO L225 Difference]: With dead ends: 62290 [2018-09-18 12:38:11,482 INFO L226 Difference]: Without dead ends: 41852 [2018-09-18 12:38:11,555 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:38:11,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41852 states. [2018-09-18 12:38:12,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41852 to 41499. [2018-09-18 12:38:12,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41499 states. [2018-09-18 12:38:12,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41499 states to 41499 states and 57743 transitions. [2018-09-18 12:38:12,426 INFO L78 Accepts]: Start accepts. Automaton has 41499 states and 57743 transitions. Word has length 154 [2018-09-18 12:38:12,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:38:12,426 INFO L480 AbstractCegarLoop]: Abstraction has 41499 states and 57743 transitions. [2018-09-18 12:38:12,426 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:38:12,427 INFO L276 IsEmpty]: Start isEmpty. Operand 41499 states and 57743 transitions. [2018-09-18 12:38:12,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2018-09-18 12:38:12,431 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:38:12,431 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:38:12,432 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:38:12,432 INFO L82 PathProgramCache]: Analyzing trace with hash -666275863, now seen corresponding path program 1 times [2018-09-18 12:38:12,432 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:38:12,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:38:12,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:38:12,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:38:12,433 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:38:12,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:38:12,751 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:38:12,751 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:38:12,751 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 12:38:12,751 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:38:12,752 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:38:12,752 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:38:12,752 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 12:38:12,753 INFO L87 Difference]: Start difference. First operand 41499 states and 57743 transitions. Second operand 5 states. [2018-09-18 12:38:46,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:38:46,272 INFO L93 Difference]: Finished difference Result 125883 states and 180499 transitions. [2018-09-18 12:38:46,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 12:38:46,278 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 174 [2018-09-18 12:38:46,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:38:46,547 INFO L225 Difference]: With dead ends: 125883 [2018-09-18 12:38:46,547 INFO L226 Difference]: Without dead ends: 84390 [2018-09-18 12:38:46,621 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:38:46,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84390 states. [2018-09-18 12:38:47,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84390 to 83163. [2018-09-18 12:38:47,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83163 states. [2018-09-18 12:38:48,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83163 states to 83163 states and 107229 transitions. [2018-09-18 12:38:48,076 INFO L78 Accepts]: Start accepts. Automaton has 83163 states and 107229 transitions. Word has length 174 [2018-09-18 12:38:48,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:38:48,077 INFO L480 AbstractCegarLoop]: Abstraction has 83163 states and 107229 transitions. [2018-09-18 12:38:48,077 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:38:48,077 INFO L276 IsEmpty]: Start isEmpty. Operand 83163 states and 107229 transitions. [2018-09-18 12:38:48,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2018-09-18 12:38:48,085 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:38:48,085 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:38:48,086 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:38:48,086 INFO L82 PathProgramCache]: Analyzing trace with hash 1062511734, now seen corresponding path program 1 times [2018-09-18 12:38:48,086 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:38:48,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:38:48,087 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:38:48,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:38:48,087 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:38:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:38:48,381 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:38:48,580 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:38:48,580 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:38:48,580 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:38:48,580 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:38:48,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:38:48,581 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:38:48,581 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:38:48,581 INFO L87 Difference]: Start difference. First operand 83163 states and 107229 transitions. Second operand 6 states. [2018-09-18 12:39:06,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:39:06,451 INFO L93 Difference]: Finished difference Result 188123 states and 253174 transitions. [2018-09-18 12:39:06,451 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 12:39:06,452 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 237 [2018-09-18 12:39:06,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:39:06,739 INFO L225 Difference]: With dead ends: 188123 [2018-09-18 12:39:06,739 INFO L226 Difference]: Without dead ends: 104966 [2018-09-18 12:39:06,879 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:39:06,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104966 states. [2018-09-18 12:39:09,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104966 to 104192. [2018-09-18 12:39:09,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 104192 states. [2018-09-18 12:39:09,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104192 states to 104192 states and 134698 transitions. [2018-09-18 12:39:09,582 INFO L78 Accepts]: Start accepts. Automaton has 104192 states and 134698 transitions. Word has length 237 [2018-09-18 12:39:09,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:39:09,583 INFO L480 AbstractCegarLoop]: Abstraction has 104192 states and 134698 transitions. [2018-09-18 12:39:09,583 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:39:09,583 INFO L276 IsEmpty]: Start isEmpty. Operand 104192 states and 134698 transitions. [2018-09-18 12:39:09,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 560 [2018-09-18 12:39:09,598 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:39:09,598 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:39:09,598 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:39:09,599 INFO L82 PathProgramCache]: Analyzing trace with hash 771212805, now seen corresponding path program 1 times [2018-09-18 12:39:09,599 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:39:09,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:39:09,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:39:09,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:39:09,600 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:39:09,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:39:10,140 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:39:10,616 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 61 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-09-18 12:39:10,617 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:39:10,617 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:39:10,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:39:10,637 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:39:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:39:10,879 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:39:11,166 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:39:11,166 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:39:11,533 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:39:11,554 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 12:39:11,555 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 5 [2018-09-18 12:39:11,555 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:39:11,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:39:11,557 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:39:11,557 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-09-18 12:39:11,557 INFO L87 Difference]: Start difference. First operand 104192 states and 134698 transitions. Second operand 3 states. [2018-09-18 12:39:28,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:39:28,151 INFO L93 Difference]: Finished difference Result 236796 states and 310446 transitions. [2018-09-18 12:39:28,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:39:28,152 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 559 [2018-09-18 12:39:28,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:39:28,785 INFO L225 Difference]: With dead ends: 236796 [2018-09-18 12:39:28,785 INFO L226 Difference]: Without dead ends: 132610 [2018-09-18 12:39:29,150 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1126 GetRequests, 1118 SyntacticMatches, 5 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-09-18 12:39:29,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132610 states. [2018-09-18 12:39:32,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132610 to 132559. [2018-09-18 12:39:32,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132559 states. [2018-09-18 12:39:33,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132559 states to 132559 states and 165353 transitions. [2018-09-18 12:39:33,111 INFO L78 Accepts]: Start accepts. Automaton has 132559 states and 165353 transitions. Word has length 559 [2018-09-18 12:39:33,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:39:33,112 INFO L480 AbstractCegarLoop]: Abstraction has 132559 states and 165353 transitions. [2018-09-18 12:39:33,113 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 12:39:33,113 INFO L276 IsEmpty]: Start isEmpty. Operand 132559 states and 165353 transitions. [2018-09-18 12:39:33,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 757 [2018-09-18 12:39:33,157 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:39:33,158 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, 2, 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] [2018-09-18 12:39:33,158 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:39:33,159 INFO L82 PathProgramCache]: Analyzing trace with hash 251105618, now seen corresponding path program 1 times [2018-09-18 12:39:33,159 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:39:33,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:39:33,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:39:33,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:39:33,162 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:39:33,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:39:34,065 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2018-09-18 12:39:34,066 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:39:34,066 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 12:39:34,066 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:39:34,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 12:39:34,068 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 12:39:34,068 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:39:34,068 INFO L87 Difference]: Start difference. First operand 132559 states and 165353 transitions. Second operand 4 states. Received shutdown request... [2018-09-18 12:39:50,060 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 12:39:50,061 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 12:39:50,067 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 12:39:50,067 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 12:39:50 BoogieIcfgContainer [2018-09-18 12:39:50,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 12:39:50,068 INFO L168 Benchmark]: Toolchain (without parser) took 231488.38 ms. Allocated memory was 1.5 GB in the beginning and 3.6 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 928.9 MB in the end (delta: 461.3 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-09-18 12:39:50,069 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 12:39:50,070 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3856.38 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 186.6 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -111.7 MB). Peak memory consumption was 488.3 MB. Max. memory is 7.1 GB. [2018-09-18 12:39:50,071 INFO L168 Benchmark]: Boogie Procedure Inliner took 350.87 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 63.3 MB). Peak memory consumption was 63.3 MB. Max. memory is 7.1 GB. [2018-09-18 12:39:50,071 INFO L168 Benchmark]: Boogie Preprocessor took 1777.17 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 866.1 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -868.4 MB). Peak memory consumption was 127.7 MB. Max. memory is 7.1 GB. [2018-09-18 12:39:50,072 INFO L168 Benchmark]: RCFGBuilder took 19452.96 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 231.2 MB). Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 159.2 MB). Peak memory consumption was 999.9 MB. Max. memory is 7.1 GB. [2018-09-18 12:39:50,073 INFO L168 Benchmark]: TraceAbstraction took 206042.40 ms. Allocated memory was 2.8 GB in the beginning and 3.6 GB in the end (delta: 804.8 MB). Free memory was 2.1 GB in the beginning and 928.9 MB in the end (delta: 1.2 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-09-18 12:39:50,078 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3856.38 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 186.6 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -111.7 MB). Peak memory consumption was 488.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 350.87 ms. Allocated memory is still 1.7 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 63.3 MB). Peak memory consumption was 63.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1777.17 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 866.1 MB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -868.4 MB). Peak memory consumption was 127.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 19452.96 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 231.2 MB). Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 159.2 MB). Peak memory consumption was 999.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 206042.40 ms. Allocated memory was 2.8 GB in the beginning and 3.6 GB in the end (delta: 804.8 MB). Free memory was 2.1 GB in the beginning and 928.9 MB in the end (delta: 1.2 GB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 211]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 211). Cancelled while BasicCegarLoop was constructing difference of abstraction (132559states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement), while ReachableStatesComputation was computing reachable states (242774 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 205.9s OverallTime, 8 OverallIterations, 3 TraceHistogramMax, 189.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6741 SDtfs, 50074 SDslu, 5246 SDs, 0 SdLazy, 72077 SolverSat, 19095 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 161.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1186 GetRequests, 1137 SyntacticMatches, 8 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 3.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132559occurred in iteration=7, 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: 9.9s AutomataMinimizationTime, 7 MinimizatonAttempts, 4102 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 2801 NumberOfCodeBlocks, 2801 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 3350 ConstructedInterpolants, 0 QuantifiedInterpolants, 3097262 SizeOfPredicates, 2 NumberOfNonLiveVariables, 747 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 679/740 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/Problem19_label48_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_12-39-50-094.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label48_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_12-39-50-094.csv Completed graceful shutdown