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_label06_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 12:28:52,581 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 12:28:52,583 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 12:28:52,596 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 12:28:52,596 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 12:28:52,597 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 12:28:52,599 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 12:28:52,600 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 12:28:52,602 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 12:28:52,603 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 12:28:52,604 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 12:28:52,604 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 12:28:52,605 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 12:28:52,606 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 12:28:52,610 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 12:28:52,611 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 12:28:52,612 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 12:28:52,616 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 12:28:52,621 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 12:28:52,623 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 12:28:52,624 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 12:28:52,627 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 12:28:52,630 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 12:28:52,630 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 12:28:52,631 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 12:28:52,632 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 12:28:52,633 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 12:28:52,634 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 12:28:52,636 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 12:28:52,639 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 12:28:52,639 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 12:28:52,640 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 12:28:52,640 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 12:28:52,642 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 12:28:52,643 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 12:28:52,645 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 12:28:52,645 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 12:28:52,668 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 12:28:52,668 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 12:28:52,669 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 12:28:52,669 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 12:28:52,669 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 12:28:52,670 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 12:28:52,670 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 12:28:52,670 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 12:28:52,670 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 12:28:52,670 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 12:28:52,671 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 12:28:52,671 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 12:28:52,671 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 12:28:52,672 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 12:28:52,672 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 12:28:52,672 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 12:28:52,672 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 12:28:52,672 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 12:28:52,673 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 12:28:52,673 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 12:28:52,673 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 12:28:52,673 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 12:28:52,673 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 12:28:52,673 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 12:28:52,674 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 12:28:52,674 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 12:28:52,674 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 12:28:52,674 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 12:28:52,674 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 12:28:52,675 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 12:28:52,675 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 12:28:52,675 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 12:28:52,675 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 12:28:52,675 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 12:28:52,734 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 12:28:52,749 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 12:28:52,757 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 12:28:52,758 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 12:28:52,759 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 12:28:52,760 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem19_label06_true-unreach-call.c [2018-09-18 12:28:53,119 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20e34b014/3f29ba11f40b4a8f9d997deb3b8380d7/FLAGb3b5f0fc8 [2018-09-18 12:28:53,683 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 12:28:53,684 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem19_label06_true-unreach-call.c [2018-09-18 12:28:53,733 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20e34b014/3f29ba11f40b4a8f9d997deb3b8380d7/FLAGb3b5f0fc8 [2018-09-18 12:28:53,755 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20e34b014/3f29ba11f40b4a8f9d997deb3b8380d7 [2018-09-18 12:28:53,768 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 12:28:53,771 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 12:28:53,772 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 12:28:53,772 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 12:28:53,779 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 12:28:53,781 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:28:53" (1/1) ... [2018-09-18 12:28:53,784 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@428e54a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:53, skipping insertion in model container [2018-09-18 12:28:53,785 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:28:53" (1/1) ... [2018-09-18 12:28:53,798 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 12:28:55,766 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:28:55,786 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 12:28:56,901 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:28:57,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:57 WrapperNode [2018-09-18 12:28:57,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 12:28:57,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 12:28:57,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 12:28:57,563 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 12:28:57,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:57" (1/1) ... [2018-09-18 12:28:57,739 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:57" (1/1) ... [2018-09-18 12:28:59,008 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 12:28:59,009 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 12:28:59,009 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 12:28:59,009 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 12:28:59,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:57" (1/1) ... [2018-09-18 12:28:59,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:57" (1/1) ... [2018-09-18 12:28:59,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:57" (1/1) ... [2018-09-18 12:28:59,134 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:57" (1/1) ... [2018-09-18 12:28:59,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:57" (1/1) ... [2018-09-18 12:28:59,467 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:57" (1/1) ... [2018-09-18 12:28:59,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:57" (1/1) ... [2018-09-18 12:28:59,710 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 12:28:59,710 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 12:28:59,711 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 12:28:59,711 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 12:28:59,712 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:57" (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 12:28:59,768 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 12:28:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 12:28:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output6 [2018-09-18 12:28:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output6 [2018-09-18 12:28:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output5 [2018-09-18 12:28:59,769 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output5 [2018-09-18 12:28:59,769 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-09-18 12:28:59,770 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-09-18 12:28:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-09-18 12:28:59,770 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-09-18 12:28:59,770 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 12:28:59,770 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 12:28:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 12:28:59,771 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 12:28:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 12:28:59,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 12:28:59,771 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 12:28:59,771 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 12:29:16,981 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 12:29:16,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:29:16 BoogieIcfgContainer [2018-09-18 12:29:16,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 12:29:16,983 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 12:29:16,983 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 12:29:16,986 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 12:29:16,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 12:28:53" (1/3) ... [2018-09-18 12:29:16,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344888f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:29:16, skipping insertion in model container [2018-09-18 12:29:16,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:28:57" (2/3) ... [2018-09-18 12:29:16,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@344888f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:29:16, skipping insertion in model container [2018-09-18 12:29:16,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:29:16" (3/3) ... [2018-09-18 12:29:16,990 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem19_label06_true-unreach-call.c [2018-09-18 12:29:17,000 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 12:29:17,011 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 12:29:17,086 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 12:29:17,087 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 12:29:17,087 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 12:29:17,087 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 12:29:17,088 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 12:29:17,088 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 12:29:17,088 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 12:29:17,088 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 12:29:17,088 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 12:29:17,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states. [2018-09-18 12:29:17,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-09-18 12:29:17,170 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:29:17,171 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] [2018-09-18 12:29:17,172 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:29:17,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1394704370, now seen corresponding path program 1 times [2018-09-18 12:29:17,180 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:29:17,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:29:17,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:29:17,227 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:29:17,228 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:29:17,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:29:17,655 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:29:17,777 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 12:29:17,780 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:29:17,780 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 12:29:17,780 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:29:17,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:29:17,806 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:29:17,807 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 12:29:17,810 INFO L87 Difference]: Start difference. First operand 1778 states. Second operand 3 states. [2018-09-18 12:29:35,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:29:35,823 INFO L93 Difference]: Finished difference Result 5042 states and 9509 transitions. [2018-09-18 12:29:35,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:29:35,825 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2018-09-18 12:29:35,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:29:35,877 INFO L225 Difference]: With dead ends: 5042 [2018-09-18 12:29:35,877 INFO L226 Difference]: Without dead ends: 3262 [2018-09-18 12:29:35,889 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 12:29:35,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3262 states. [2018-09-18 12:29:36,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3262 to 3214. [2018-09-18 12:29:36,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3214 states. [2018-09-18 12:29:36,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3214 states to 3214 states and 5986 transitions. [2018-09-18 12:29:36,123 INFO L78 Accepts]: Start accepts. Automaton has 3214 states and 5986 transitions. Word has length 61 [2018-09-18 12:29:36,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:29:36,124 INFO L480 AbstractCegarLoop]: Abstraction has 3214 states and 5986 transitions. [2018-09-18 12:29:36,124 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 12:29:36,124 INFO L276 IsEmpty]: Start isEmpty. Operand 3214 states and 5986 transitions. [2018-09-18 12:29:36,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2018-09-18 12:29:36,139 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:29:36,140 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:29:36,140 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:29:36,140 INFO L82 PathProgramCache]: Analyzing trace with hash 236400336, now seen corresponding path program 1 times [2018-09-18 12:29:36,141 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:29:36,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:29:36,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:29:36,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:29:36,146 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:29:36,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:29:36,676 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:29:36,677 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:29:36,677 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 12:29:36,677 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:29:36,679 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:29:36,679 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:29:36,680 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-09-18 12:29:36,680 INFO L87 Difference]: Start difference. First operand 3214 states and 5986 transitions. Second operand 5 states. [2018-09-18 12:30:13,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:30:13,333 INFO L93 Difference]: Finished difference Result 9615 states and 17996 transitions. [2018-09-18 12:30:13,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 12:30:13,334 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2018-09-18 12:30:13,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:30:13,377 INFO L225 Difference]: With dead ends: 9615 [2018-09-18 12:30:13,377 INFO L226 Difference]: Without dead ends: 6407 [2018-09-18 12:30:13,388 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:30:13,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6407 states. [2018-09-18 12:30:13,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6407 to 6344. [2018-09-18 12:30:13,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6344 states. [2018-09-18 12:30:13,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6344 states to 6344 states and 10095 transitions. [2018-09-18 12:30:13,603 INFO L78 Accepts]: Start accepts. Automaton has 6344 states and 10095 transitions. Word has length 161 [2018-09-18 12:30:13,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:30:13,604 INFO L480 AbstractCegarLoop]: Abstraction has 6344 states and 10095 transitions. [2018-09-18 12:30:13,605 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:30:13,605 INFO L276 IsEmpty]: Start isEmpty. Operand 6344 states and 10095 transitions. [2018-09-18 12:30:13,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2018-09-18 12:30:13,618 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:30:13,619 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:13,619 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:30:13,619 INFO L82 PathProgramCache]: Analyzing trace with hash 2101705828, now seen corresponding path program 1 times [2018-09-18 12:30:13,620 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:30:13,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:30:13,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:30:13,625 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:30:13,625 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:30:13,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:30:13,942 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:30:13,942 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:30:13,942 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:30:13,943 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:30:13,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:30:13,943 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:30:13,944 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:30:13,944 INFO L87 Difference]: Start difference. First operand 6344 states and 10095 transitions. Second operand 6 states. [2018-09-18 12:30:43,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:30:43,582 INFO L93 Difference]: Finished difference Result 19061 states and 30642 transitions. [2018-09-18 12:30:43,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-18 12:30:43,584 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2018-09-18 12:30:43,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:30:43,644 INFO L225 Difference]: With dead ends: 19061 [2018-09-18 12:30:43,644 INFO L226 Difference]: Without dead ends: 12723 [2018-09-18 12:30:43,664 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:30:43,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12723 states. [2018-09-18 12:30:43,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12723 to 12474. [2018-09-18 12:30:43,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12474 states. [2018-09-18 12:30:44,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12474 states to 12474 states and 19002 transitions. [2018-09-18 12:30:44,001 INFO L78 Accepts]: Start accepts. Automaton has 12474 states and 19002 transitions. Word has length 171 [2018-09-18 12:30:44,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:30:44,002 INFO L480 AbstractCegarLoop]: Abstraction has 12474 states and 19002 transitions. [2018-09-18 12:30:44,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:30:44,002 INFO L276 IsEmpty]: Start isEmpty. Operand 12474 states and 19002 transitions. [2018-09-18 12:30:44,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2018-09-18 12:30:44,005 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:30:44,006 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:30:44,006 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:30:44,006 INFO L82 PathProgramCache]: Analyzing trace with hash 1371790217, now seen corresponding path program 1 times [2018-09-18 12:30:44,007 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:30:44,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:30:44,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:30:44,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:30:44,008 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:30:44,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:30:44,340 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:30:44,563 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:30:44,564 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:30:44,564 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:30:44,564 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:30:44,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:30:44,565 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:30:44,566 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:30:44,566 INFO L87 Difference]: Start difference. First operand 12474 states and 19002 transitions. Second operand 6 states. [2018-09-18 12:31:02,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:31:02,958 INFO L93 Difference]: Finished difference Result 37153 states and 58176 transitions. [2018-09-18 12:31:02,967 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 12:31:02,968 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 226 [2018-09-18 12:31:02,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:31:03,059 INFO L225 Difference]: With dead ends: 37153 [2018-09-18 12:31:03,059 INFO L226 Difference]: Without dead ends: 24685 [2018-09-18 12:31:03,094 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 12:31:03,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24685 states. [2018-09-18 12:31:03,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24685 to 24277. [2018-09-18 12:31:03,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24277 states. [2018-09-18 12:31:03,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24277 states to 24277 states and 36544 transitions. [2018-09-18 12:31:03,659 INFO L78 Accepts]: Start accepts. Automaton has 24277 states and 36544 transitions. Word has length 226 [2018-09-18 12:31:03,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:31:03,660 INFO L480 AbstractCegarLoop]: Abstraction has 24277 states and 36544 transitions. [2018-09-18 12:31:03,660 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:31:03,660 INFO L276 IsEmpty]: Start isEmpty. Operand 24277 states and 36544 transitions. [2018-09-18 12:31:03,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2018-09-18 12:31:03,666 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:31:03,667 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:31:03,667 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:31:03,668 INFO L82 PathProgramCache]: Analyzing trace with hash 1971346795, now seen corresponding path program 1 times [2018-09-18 12:31:03,668 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:31:03,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:31:03,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:31:03,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:31:03,669 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:31:03,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:31:04,472 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:31:04,472 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:31:04,473 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-18 12:31:04,473 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:31:04,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-18 12:31:04,474 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-18 12:31:04,474 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2018-09-18 12:31:04,474 INFO L87 Difference]: Start difference. First operand 24277 states and 36544 transitions. Second operand 7 states. [2018-09-18 12:31:54,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:31:54,302 INFO L93 Difference]: Finished difference Result 91987 states and 154255 transitions. [2018-09-18 12:31:54,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-09-18 12:31:54,302 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 278 [2018-09-18 12:31:54,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:31:54,566 INFO L225 Difference]: With dead ends: 91987 [2018-09-18 12:31:54,566 INFO L226 Difference]: Without dead ends: 67716 [2018-09-18 12:31:54,701 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2018-09-18 12:31:54,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67716 states. [2018-09-18 12:31:56,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67716 to 67028. [2018-09-18 12:31:56,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67028 states. [2018-09-18 12:31:56,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67028 states to 67028 states and 97077 transitions. [2018-09-18 12:31:56,858 INFO L78 Accepts]: Start accepts. Automaton has 67028 states and 97077 transitions. Word has length 278 [2018-09-18 12:31:56,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:31:56,859 INFO L480 AbstractCegarLoop]: Abstraction has 67028 states and 97077 transitions. [2018-09-18 12:31:56,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-18 12:31:56,859 INFO L276 IsEmpty]: Start isEmpty. Operand 67028 states and 97077 transitions. [2018-09-18 12:31:56,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 766 [2018-09-18 12:31:56,886 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:31:56,887 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 12:31:56,887 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:31:56,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1100069187, now seen corresponding path program 1 times [2018-09-18 12:31:56,888 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:31:56,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:31:56,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:31:56,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:31:56,889 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:31:57,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:31:58,225 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 321 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:31:58,227 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:31:58,227 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 12:31:58,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:31:58,243 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:31:58,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:31:58,516 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:31:59,009 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 321 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:31:59,010 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:32:00,696 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 321 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:32:00,733 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:32:00,734 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 12:32:00,764 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:32:00,764 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:32:01,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:32:01,257 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:32:01,624 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 321 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:32:01,624 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:32:02,212 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 321 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:32:02,215 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:32:02,216 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-18 12:32:02,217 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:32:02,220 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 12:32:02,220 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 12:32:02,220 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-18 12:32:02,221 INFO L87 Difference]: Start difference. First operand 67028 states and 97077 transitions. Second operand 9 states. [2018-09-18 12:32:36,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:32:36,319 INFO L93 Difference]: Finished difference Result 200647 states and 369595 transitions. [2018-09-18 12:32:36,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-09-18 12:32:36,320 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 765 [2018-09-18 12:32:36,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:32:37,270 INFO L225 Difference]: With dead ends: 200647 [2018-09-18 12:32:37,270 INFO L226 Difference]: Without dead ends: 133625 [2018-09-18 12:32:37,604 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3076 GetRequests, 3055 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2018-09-18 12:32:37,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133625 states. [2018-09-18 12:32:42,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133625 to 132111. [2018-09-18 12:32:42,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132111 states. [2018-09-18 12:32:42,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132111 states to 132111 states and 217131 transitions. [2018-09-18 12:32:42,664 INFO L78 Accepts]: Start accepts. Automaton has 132111 states and 217131 transitions. Word has length 765 [2018-09-18 12:32:42,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:32:42,666 INFO L480 AbstractCegarLoop]: Abstraction has 132111 states and 217131 transitions. [2018-09-18 12:32:42,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 12:32:42,666 INFO L276 IsEmpty]: Start isEmpty. Operand 132111 states and 217131 transitions. [2018-09-18 12:32:42,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 775 [2018-09-18 12:32:42,712 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:32:42,713 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 12:32:42,713 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:32:42,714 INFO L82 PathProgramCache]: Analyzing trace with hash -1048759961, now seen corresponding path program 1 times [2018-09-18 12:32:42,714 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:32:42,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:32:42,715 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:32:42,715 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:32:42,715 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:32:42,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:32:43,691 INFO L134 CoverageAnalysis]: Checked inductivity of 323 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2018-09-18 12:32:43,691 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:32:43,691 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 12:32:43,691 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:32:43,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 12:32:43,693 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 12:32:43,693 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:32:43,693 INFO L87 Difference]: Start difference. First operand 132111 states and 217131 transitions. Second operand 4 states. Received shutdown request... [2018-09-18 12:32:49,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 12:32:49,784 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 12:32:49,789 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 12:32:49,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 12:32:49 BoogieIcfgContainer [2018-09-18 12:32:49,789 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 12:32:49,790 INFO L168 Benchmark]: Toolchain (without parser) took 236021.62 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -821.4 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-09-18 12:32:49,791 INFO L168 Benchmark]: CDTParser took 0.24 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 12:32:49,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 3790.32 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 192.4 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -116.4 MB). Peak memory consumption was 488.4 MB. Max. memory is 7.1 GB. [2018-09-18 12:32:49,793 INFO L168 Benchmark]: Boogie Procedure Inliner took 1445.52 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 832.6 MB). Free memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: -852.0 MB). Peak memory consumption was 159.8 MB. Max. memory is 7.1 GB. [2018-09-18 12:32:49,794 INFO L168 Benchmark]: Boogie Preprocessor took 701.46 ms. Allocated memory is still 2.6 GB. Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 96.5 MB). Peak memory consumption was 96.5 MB. Max. memory is 7.1 GB. [2018-09-18 12:32:49,794 INFO L168 Benchmark]: RCFGBuilder took 17271.75 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 274.7 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 86.9 MB). Peak memory consumption was 954.9 MB. Max. memory is 7.1 GB. [2018-09-18 12:32:49,795 INFO L168 Benchmark]: TraceAbstraction took 212806.28 ms. Allocated memory was 2.8 GB in the beginning and 3.7 GB in the end (delta: 896.0 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -36.3 MB). Peak memory consumption was 859.7 MB. Max. memory is 7.1 GB. [2018-09-18 12:32:49,801 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 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 3790.32 ms. Allocated memory was 1.5 GB in the beginning and 1.7 GB in the end (delta: 192.4 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -116.4 MB). Peak memory consumption was 488.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 1445.52 ms. Allocated memory was 1.7 GB in the beginning and 2.6 GB in the end (delta: 832.6 MB). Free memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: -852.0 MB). Peak memory consumption was 159.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 701.46 ms. Allocated memory is still 2.6 GB. Free memory was 2.4 GB in the beginning and 2.3 GB in the end (delta: 96.5 MB). Peak memory consumption was 96.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 17271.75 ms. Allocated memory was 2.6 GB in the beginning and 2.8 GB in the end (delta: 274.7 MB). Free memory was 2.3 GB in the beginning and 2.2 GB in the end (delta: 86.9 MB). Peak memory consumption was 954.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 212806.28 ms. Allocated memory was 2.8 GB in the beginning and 3.7 GB in the end (delta: 896.0 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -36.3 MB). Peak memory consumption was 859.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 178]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 178). Cancelled while BasicCegarLoop was constructing difference of abstraction (132111states) and FLOYD_HOARE automaton (currently 4 states, 4 states before enhancement), while ReachableStatesComputation was computing reachable states (37466 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 1778 locations, 1 error locations. TIMEOUT Result, 212.7s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 194.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3605 SDtfs, 43924 SDslu, 4950 SDs, 0 SdLazy, 69078 SolverSat, 17941 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 168.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3125 GetRequests, 3072 SyntacticMatches, 8 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=132111occurred 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: 8.5s AutomataMinimizationTime, 6 MinimizatonAttempts, 2970 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 6.3s InterpolantComputationTime, 3966 NumberOfCodeBlocks, 3966 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 5485 ConstructedInterpolants, 0 QuantifiedInterpolants, 8564856 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1996 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 11 InterpolantComputations, 6 PerfectInterpolantSequences, 2144/2154 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_label06_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_12-32-49-816.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem19_label06_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_12-32-49-816.csv Completed graceful shutdown