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_label05_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 12:28:44,423 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 12:28:44,426 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 12:28:44,438 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 12:28:44,438 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 12:28:44,439 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 12:28:44,440 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 12:28:44,442 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 12:28:44,444 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 12:28:44,445 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 12:28:44,446 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 12:28:44,446 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 12:28:44,447 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 12:28:44,448 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 12:28:44,449 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 12:28:44,450 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 12:28:44,451 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 12:28:44,453 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 12:28:44,455 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 12:28:44,457 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 12:28:44,458 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 12:28:44,459 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 12:28:44,462 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 12:28:44,462 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 12:28:44,462 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 12:28:44,463 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 12:28:44,464 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 12:28:44,465 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 12:28:44,466 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 12:28:44,467 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 12:28:44,467 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 12:28:44,468 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 12:28:44,468 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 12:28:44,468 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 12:28:44,469 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 12:28:44,470 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 12:28:44,471 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 12:28:44,492 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 12:28:44,492 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 12:28:44,493 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 12:28:44,493 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 12:28:44,493 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 12:28:44,493 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 12:28:44,494 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 12:28:44,494 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 12:28:44,494 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 12:28:44,494 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 12:28:44,494 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 12:28:44,495 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 12:28:44,495 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 12:28:44,496 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 12:28:44,496 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 12:28:44,496 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 12:28:44,496 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 12:28:44,496 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 12:28:44,497 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 12:28:44,497 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 12:28:44,497 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 12:28:44,497 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 12:28:44,498 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 12:28:44,498 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 12:28:44,498 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 12:28:44,498 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 12:28:44,498 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 12:28:44,499 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 12:28:44,499 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 12:28:44,499 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 12:28:44,499 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 12:28:44,499 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 12:28:44,500 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 12:28:44,500 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 12:28:44,555 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 12:28:44,573 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 12:28:44,580 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 12:28:44,582 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 12:28:44,582 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 12:28:44,583 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label05_true-unreach-call.c [2018-09-18 12:28:44,951 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a88c59bd5/5a89e42bdd254369b1db661dfc86af64/FLAGcb5b36f85 [2018-09-18 12:28:45,581 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 12:28:45,583 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label05_true-unreach-call.c [2018-09-18 12:28:45,631 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a88c59bd5/5a89e42bdd254369b1db661dfc86af64/FLAGcb5b36f85 [2018-09-18 12:28:45,653 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a88c59bd5/5a89e42bdd254369b1db661dfc86af64 [2018-09-18 12:28:45,666 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 12:28:45,669 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 12:28:45,671 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 12:28:45,671 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 12:28:45,682 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 12:28:45,683 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:28:45" (1/1) ... [2018-09-18 12:28:45,687 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@560f8b24 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:45, skipping insertion in model container [2018-09-18 12:28:45,687 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:28:45" (1/1) ... [2018-09-18 12:28:45,701 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 12:28:47,689 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:28:47,710 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 12:28:48,729 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:28:49,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:49 WrapperNode [2018-09-18 12:28:49,563 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 12:28:49,564 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 12:28:49,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 12:28:49,564 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 12:28:49,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:49" (1/1) ... [2018-09-18 12:28:49,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:49" (1/1) ... [2018-09-18 12:28:49,889 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 12:28:49,890 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 12:28:49,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 12:28:49,890 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 12:28:51,022 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:49" (1/1) ... [2018-09-18 12:28:51,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:49" (1/1) ... [2018-09-18 12:28:51,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:49" (1/1) ... [2018-09-18 12:28:51,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:49" (1/1) ... [2018-09-18 12:28:51,433 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:49" (1/1) ... [2018-09-18 12:28:51,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:49" (1/1) ... [2018-09-18 12:28:51,598 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:49" (1/1) ... [2018-09-18 12:28:51,757 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 12:28:51,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 12:28:51,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 12:28:51,758 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 12:28:51,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:49" (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 12:28:51,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 12:28:51,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 12:28:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-09-18 12:28:51,831 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-09-18 12:28:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-09-18 12:28:51,831 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-09-18 12:28:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 12:28:51,831 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 12:28:51,831 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 12:28:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 12:28:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 12:28:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 12:28:51,832 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 12:28:51,832 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 12:28:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 12:28:51,833 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 12:28:51,833 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 12:28:51,833 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 12:29:09,860 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 12:29:09,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:29:09 BoogieIcfgContainer [2018-09-18 12:29:09,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 12:29:09,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 12:29:09,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 12:29:09,866 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 12:29:09,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 12:28:45" (1/3) ... [2018-09-18 12:29:09,867 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406f8165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:29:09, skipping insertion in model container [2018-09-18 12:29:09,867 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:49" (2/3) ... [2018-09-18 12:29:09,868 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406f8165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:29:09, skipping insertion in model container [2018-09-18 12:29:09,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:29:09" (3/3) ... [2018-09-18 12:29:09,870 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label05_true-unreach-call.c [2018-09-18 12:29:09,880 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 12:29:09,890 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 12:29:09,961 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 12:29:09,962 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 12:29:09,962 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 12:29:09,963 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 12:29:09,963 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 12:29:09,963 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 12:29:09,963 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 12:29:09,963 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 12:29:09,963 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 12:29:10,015 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-09-18 12:29:10,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-09-18 12:29:10,025 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:29:10,026 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] [2018-09-18 12:29:10,028 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:29:10,033 INFO L82 PathProgramCache]: Analyzing trace with hash 1860482762, now seen corresponding path program 1 times [2018-09-18 12:29:10,036 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:29:10,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:29:10,089 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:29:10,089 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:29:10,089 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:29:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:29:10,541 WARN L178 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:29:10,654 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 12:29:10,657 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:29:10,657 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 12:29:10,657 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:29:10,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:29:10,682 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:29:10,683 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 12:29:10,686 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-09-18 12:29:26,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:29:26,411 INFO L93 Difference]: Finished difference Result 4995 states and 9413 transitions. [2018-09-18 12:29:26,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:29:26,415 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2018-09-18 12:29:26,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:29:26,466 INFO L225 Difference]: With dead ends: 4995 [2018-09-18 12:29:26,466 INFO L226 Difference]: Without dead ends: 3215 [2018-09-18 12:29:26,481 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 12:29:26,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3215 states. [2018-09-18 12:29:26,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3215 to 3213. [2018-09-18 12:29:26,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3213 states. [2018-09-18 12:29:26,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3213 states to 3213 states and 5833 transitions. [2018-09-18 12:29:26,695 INFO L78 Accepts]: Start accepts. Automaton has 3213 states and 5833 transitions. Word has length 67 [2018-09-18 12:29:26,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:29:26,696 INFO L480 AbstractCegarLoop]: Abstraction has 3213 states and 5833 transitions. [2018-09-18 12:29:26,696 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 12:29:26,696 INFO L276 IsEmpty]: Start isEmpty. Operand 3213 states and 5833 transitions. [2018-09-18 12:29:26,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2018-09-18 12:29:26,708 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:29:26,710 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, 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 12:29:26,710 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:29:26,712 INFO L82 PathProgramCache]: Analyzing trace with hash 1310005478, now seen corresponding path program 1 times [2018-09-18 12:29:26,712 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:29:26,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:29:26,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:29:26,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:29:26,716 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:29:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:29:27,187 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:29:27,187 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:29:27,188 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 12:29:27,189 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:29:27,191 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:29:27,191 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:29:27,191 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 12:29:27,192 INFO L87 Difference]: Start difference. First operand 3213 states and 5833 transitions. Second operand 5 states. [2018-09-18 12:30:09,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:30:09,953 INFO L93 Difference]: Finished difference Result 12253 states and 22711 transitions. [2018-09-18 12:30:09,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 12:30:09,954 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2018-09-18 12:30:09,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:30:10,010 INFO L225 Difference]: With dead ends: 12253 [2018-09-18 12:30:10,010 INFO L226 Difference]: Without dead ends: 9046 [2018-09-18 12:30:10,026 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:30:10,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9046 states. [2018-09-18 12:30:10,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9046 to 8968. [2018-09-18 12:30:10,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8968 states. [2018-09-18 12:30:10,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8968 states to 8968 states and 13250 transitions. [2018-09-18 12:30:10,299 INFO L78 Accepts]: Start accepts. Automaton has 8968 states and 13250 transitions. Word has length 141 [2018-09-18 12:30:10,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:30:10,300 INFO L480 AbstractCegarLoop]: Abstraction has 8968 states and 13250 transitions. [2018-09-18 12:30:10,300 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:30:10,300 INFO L276 IsEmpty]: Start isEmpty. Operand 8968 states and 13250 transitions. [2018-09-18 12:30:10,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2018-09-18 12:30:10,312 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:30:10,312 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, 1, 1, 1, 1, 1, 1, 1, 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 12:30:10,313 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:30:10,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1307216630, now seen corresponding path program 1 times [2018-09-18 12:30:10,313 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:30:10,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:30:10,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:30:10,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:30:10,317 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:30:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:30:10,703 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:30:10,703 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:30:10,703 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:30:10,703 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:30:10,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:30:10,704 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:30:10,705 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:30:10,705 INFO L87 Difference]: Start difference. First operand 8968 states and 13250 transitions. Second operand 6 states. [2018-09-18 12:30:32,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:30:32,002 INFO L93 Difference]: Finished difference Result 27246 states and 40835 transitions. [2018-09-18 12:30:32,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-18 12:30:32,003 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 149 [2018-09-18 12:30:32,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:30:32,088 INFO L225 Difference]: With dead ends: 27246 [2018-09-18 12:30:32,089 INFO L226 Difference]: Without dead ends: 18284 [2018-09-18 12:30:32,118 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:30:32,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18284 states. [2018-09-18 12:30:32,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18284 to 18016. [2018-09-18 12:30:32,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18016 states. [2018-09-18 12:30:32,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18016 states to 18016 states and 26094 transitions. [2018-09-18 12:30:32,576 INFO L78 Accepts]: Start accepts. Automaton has 18016 states and 26094 transitions. Word has length 149 [2018-09-18 12:30:32,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:30:32,577 INFO L480 AbstractCegarLoop]: Abstraction has 18016 states and 26094 transitions. [2018-09-18 12:30:32,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:30:32,577 INFO L276 IsEmpty]: Start isEmpty. Operand 18016 states and 26094 transitions. [2018-09-18 12:30:32,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2018-09-18 12:30:32,582 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:30:32,583 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:32,583 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:30:32,589 INFO L82 PathProgramCache]: Analyzing trace with hash 899038028, now seen corresponding path program 1 times [2018-09-18 12:30:32,589 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:30:32,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:30:32,591 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:30:32,591 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:30:32,591 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:30:32,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:30:32,937 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:30:32,938 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:30:32,938 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 12:30:32,938 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:30:32,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:30:32,939 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:30:32,939 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 12:30:32,940 INFO L87 Difference]: Start difference. First operand 18016 states and 26094 transitions. Second operand 5 states. [2018-09-18 12:31:01,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:31:01,622 INFO L93 Difference]: Finished difference Result 55400 states and 81898 transitions. [2018-09-18 12:31:01,624 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 12:31:01,624 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 169 [2018-09-18 12:31:01,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:31:01,759 INFO L225 Difference]: With dead ends: 55400 [2018-09-18 12:31:01,759 INFO L226 Difference]: Without dead ends: 37390 [2018-09-18 12:31:01,818 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:31:01,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37390 states. [2018-09-18 12:31:02,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37390 to 36477. [2018-09-18 12:31:02,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36477 states. [2018-09-18 12:31:02,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36477 states to 36477 states and 48125 transitions. [2018-09-18 12:31:02,631 INFO L78 Accepts]: Start accepts. Automaton has 36477 states and 48125 transitions. Word has length 169 [2018-09-18 12:31:02,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:31:02,632 INFO L480 AbstractCegarLoop]: Abstraction has 36477 states and 48125 transitions. [2018-09-18 12:31:02,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:31:02,632 INFO L276 IsEmpty]: Start isEmpty. Operand 36477 states and 48125 transitions. [2018-09-18 12:31:02,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-09-18 12:31:02,638 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:31:02,639 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:02,639 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:31:02,639 INFO L82 PathProgramCache]: Analyzing trace with hash -1152657023, now seen corresponding path program 1 times [2018-09-18 12:31:02,639 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:31:02,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:31:02,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:31:02,641 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:31:02,641 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:31:02,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:31:02,973 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:31:03,411 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:31:03,411 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:31:03,411 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:31:03,412 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:31:03,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:31:03,412 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:31:03,413 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:31:03,413 INFO L87 Difference]: Start difference. First operand 36477 states and 48125 transitions. Second operand 6 states. [2018-09-18 12:31:23,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:31:23,150 INFO L93 Difference]: Finished difference Result 86847 states and 118170 transitions. [2018-09-18 12:31:23,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 12:31:23,152 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 232 [2018-09-18 12:31:23,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:31:23,291 INFO L225 Difference]: With dead ends: 86847 [2018-09-18 12:31:23,292 INFO L226 Difference]: Without dead ends: 50376 [2018-09-18 12:31:23,381 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:31:23,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50376 states. [2018-09-18 12:31:24,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50376 to 49337. [2018-09-18 12:31:24,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49337 states. [2018-09-18 12:31:24,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49337 states to 49337 states and 63971 transitions. [2018-09-18 12:31:24,253 INFO L78 Accepts]: Start accepts. Automaton has 49337 states and 63971 transitions. Word has length 232 [2018-09-18 12:31:24,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:31:24,254 INFO L480 AbstractCegarLoop]: Abstraction has 49337 states and 63971 transitions. [2018-09-18 12:31:24,254 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:31:24,255 INFO L276 IsEmpty]: Start isEmpty. Operand 49337 states and 63971 transitions. [2018-09-18 12:31:24,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 741 [2018-09-18 12:31:24,279 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:31:24,280 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, 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] [2018-09-18 12:31:24,281 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:31:24,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1073685916, now seen corresponding path program 1 times [2018-09-18 12:31:24,281 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:31:24,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:31:24,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:31:24,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:31:24,283 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:31:24,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:31:25,511 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 197 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:31:25,511 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:31:25,512 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 12:31:25,531 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:31:25,531 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:31:25,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:31:25,813 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:31:26,782 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 197 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:31:26,782 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:31:27,509 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 197 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:31:27,530 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:31:27,531 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:31:27,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:31:27,559 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:31:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:31:28,006 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:31:28,427 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 197 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:31:28,427 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:31:29,361 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 197 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:31:29,364 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:31:29,365 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-18 12:31:29,365 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:31:29,368 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 12:31:29,369 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 12:31:29,369 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-18 12:31:29,369 INFO L87 Difference]: Start difference. First operand 49337 states and 63971 transitions. Second operand 9 states. [2018-09-18 12:32:16,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:32:16,394 INFO L93 Difference]: Finished difference Result 256449 states and 388154 transitions. [2018-09-18 12:32:16,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-18 12:32:16,395 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 740 [2018-09-18 12:32:16,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:32:17,528 INFO L225 Difference]: With dead ends: 256449 [2018-09-18 12:32:17,528 INFO L226 Difference]: Without dead ends: 207118 [2018-09-18 12:32:18,051 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2985 GetRequests, 2957 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2018-09-18 12:32:18,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207118 states. [2018-09-18 12:32:22,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207118 to 205408. [2018-09-18 12:32:22,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205408 states. [2018-09-18 12:32:23,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205408 states to 205408 states and 276745 transitions. [2018-09-18 12:32:23,052 INFO L78 Accepts]: Start accepts. Automaton has 205408 states and 276745 transitions. Word has length 740 [2018-09-18 12:32:23,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:32:23,053 INFO L480 AbstractCegarLoop]: Abstraction has 205408 states and 276745 transitions. [2018-09-18 12:32:23,053 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 12:32:23,053 INFO L276 IsEmpty]: Start isEmpty. Operand 205408 states and 276745 transitions. [2018-09-18 12:32:23,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 776 [2018-09-18 12:32:23,089 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:32:23,090 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 12:32:23,090 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:32:23,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1776548438, now seen corresponding path program 1 times [2018-09-18 12:32:23,091 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:32:23,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:32:23,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:32:23,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:32:23,092 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:32:23,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:32:24,141 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 61 proven. 271 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:32:24,141 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:32:24,141 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:32:24,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:32:24,149 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:32:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:32:24,364 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:32:25,993 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2018-09-18 12:32:25,994 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:32:26,501 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2018-09-18 12:32:26,523 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 12:32:26,523 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-09-18 12:32:26,523 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:32:26,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:32:26,526 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:32:26,526 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:32:26,526 INFO L87 Difference]: Start difference. First operand 205408 states and 276745 transitions. Second operand 3 states. Received shutdown request... [2018-09-18 12:32:37,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:32:37,639 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 12:32:37,643 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 12:32:37,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 12:32:37 BoogieIcfgContainer [2018-09-18 12:32:37,644 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 12:32:37,645 INFO L168 Benchmark]: Toolchain (without parser) took 231978.46 ms. Allocated memory was 1.5 GB in the beginning and 3.5 GB in the end (delta: 2.0 GB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -659.7 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-18 12:32:37,646 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 12:32:37,647 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3892.48 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 245.9 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -164.7 MB). Peak memory consumption was 485.7 MB. Max. memory is 7.1 GB. [2018-09-18 12:32:37,648 INFO L168 Benchmark]: Boogie Procedure Inliner took 325.94 ms. Allocated memory is still 1.8 GB. Free memory was 1.6 GB in the beginning and 1.5 GB in the end (delta: 66.4 MB). Peak memory consumption was 66.4 MB. Max. memory is 7.1 GB. [2018-09-18 12:32:37,648 INFO L168 Benchmark]: Boogie Preprocessor took 1867.55 ms. Allocated memory was 1.8 GB in the beginning and 2.6 GB in the end (delta: 790.1 MB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -802.9 MB). Peak memory consumption was 127.6 MB. Max. memory is 7.1 GB. [2018-09-18 12:32:37,649 INFO L168 Benchmark]: RCFGBuilder took 18103.57 ms. Allocated memory was 2.6 GB in the beginning and 2.9 GB in the end (delta: 360.7 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 20.0 MB). Peak memory consumption was 998.7 MB. Max. memory is 7.1 GB. [2018-09-18 12:32:37,650 INFO L168 Benchmark]: TraceAbstraction took 207781.80 ms. Allocated memory was 2.9 GB in the beginning and 3.5 GB in the end (delta: 589.3 MB). Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 221.5 MB). Peak memory consumption was 810.8 MB. Max. memory is 7.1 GB. [2018-09-18 12:32:37,656 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 3892.48 ms. Allocated memory was 1.5 GB in the beginning and 1.8 GB in the end (delta: 245.9 MB). Free memory was 1.4 GB in the beginning and 1.6 GB in the end (delta: -164.7 MB). Peak memory consumption was 485.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 325.94 ms. Allocated memory is still 1.8 GB. Free memory was 1.6 GB in the beginning and 1.5 GB in the end (delta: 66.4 MB). Peak memory consumption was 66.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 1867.55 ms. Allocated memory was 1.8 GB in the beginning and 2.6 GB in the end (delta: 790.1 MB). Free memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: -802.9 MB). Peak memory consumption was 127.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 18103.57 ms. Allocated memory was 2.6 GB in the beginning and 2.9 GB in the end (delta: 360.7 MB). Free memory was 2.3 GB in the beginning and 2.3 GB in the end (delta: 20.0 MB). Peak memory consumption was 998.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 207781.80 ms. Allocated memory was 2.9 GB in the beginning and 3.5 GB in the end (delta: 589.3 MB). Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 221.5 MB). Peak memory consumption was 810.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 196]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 196). Cancelled while BasicCegarLoop was constructing difference of abstraction (205408states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement), while ReachableStatesComputation was computing reachable states (261237 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 207.6s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 188.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6303 SDtfs, 46840 SDslu, 5522 SDs, 0 SdLazy, 73525 SolverSat, 18409 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 161.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4590 GetRequests, 4522 SyntacticMatches, 12 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=205408occurred in iteration=6, 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: 7.6s AutomataMinimizationTime, 6 MinimizatonAttempts, 4010 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 4528 NumberOfCodeBlocks, 4528 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 6770 ConstructedInterpolants, 0 QuantifiedInterpolants, 8294384 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2995 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 1950/2231 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_label05_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_12-32-37-672.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label05_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_12-32-37-672.csv Completed graceful shutdown