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/Problem17_label02_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 12:08:47,704 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 12:08:47,706 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 12:08:47,718 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 12:08:47,718 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 12:08:47,719 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 12:08:47,721 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 12:08:47,723 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 12:08:47,724 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 12:08:47,725 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 12:08:47,726 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 12:08:47,726 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 12:08:47,727 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 12:08:47,728 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 12:08:47,729 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 12:08:47,730 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 12:08:47,731 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 12:08:47,733 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 12:08:47,735 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 12:08:47,737 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 12:08:47,738 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 12:08:47,739 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 12:08:47,742 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 12:08:47,742 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 12:08:47,742 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 12:08:47,746 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 12:08:47,748 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 12:08:47,749 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 12:08:47,750 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 12:08:47,751 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 12:08:47,751 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 12:08:47,753 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 12:08:47,753 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 12:08:47,753 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 12:08:47,756 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 12:08:47,757 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 12:08:47,759 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 12:08:47,789 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 12:08:47,790 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 12:08:47,794 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 12:08:47,794 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 12:08:47,794 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 12:08:47,795 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 12:08:47,795 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 12:08:47,795 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 12:08:47,795 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 12:08:47,795 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 12:08:47,796 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 12:08:47,796 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 12:08:47,797 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 12:08:47,797 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 12:08:47,797 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 12:08:47,797 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 12:08:47,797 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 12:08:47,798 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 12:08:47,798 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 12:08:47,798 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 12:08:47,800 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 12:08:47,800 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 12:08:47,800 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 12:08:47,800 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 12:08:47,800 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 12:08:47,801 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 12:08:47,801 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 12:08:47,801 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 12:08:47,801 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 12:08:47,803 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 12:08:47,803 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 12:08:47,803 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 12:08:47,803 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 12:08:47,803 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 12:08:47,863 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 12:08:47,875 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 12:08:47,879 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 12:08:47,881 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 12:08:47,881 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 12:08:47,882 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label02_true-unreach-call.c [2018-09-18 12:08:48,221 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be294a43a/51ab72608b14401fbee6bba7d864fbd7/FLAGe1512bf7e [2018-09-18 12:08:48,664 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 12:08:48,665 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label02_true-unreach-call.c [2018-09-18 12:08:48,695 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be294a43a/51ab72608b14401fbee6bba7d864fbd7/FLAGe1512bf7e [2018-09-18 12:08:48,716 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be294a43a/51ab72608b14401fbee6bba7d864fbd7 [2018-09-18 12:08:48,729 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 12:08:48,736 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 12:08:48,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 12:08:48,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 12:08:48,746 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 12:08:48,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:08:48" (1/1) ... [2018-09-18 12:08:48,750 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35e1fe5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:48, skipping insertion in model container [2018-09-18 12:08:48,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 12:08:48" (1/1) ... [2018-09-18 12:08:48,765 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 12:08:49,884 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:08:49,905 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 12:08:50,415 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 12:08:50,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:50 WrapperNode [2018-09-18 12:08:50,651 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 12:08:50,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 12:08:50,653 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 12:08:50,653 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 12:08:50,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:50" (1/1) ... [2018-09-18 12:08:50,765 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:50" (1/1) ... [2018-09-18 12:08:50,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 12:08:50,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 12:08:50,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 12:08:50,999 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 12:08:51,608 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:50" (1/1) ... [2018-09-18 12:08:51,608 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:50" (1/1) ... [2018-09-18 12:08:51,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:50" (1/1) ... [2018-09-18 12:08:51,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:50" (1/1) ... [2018-09-18 12:08:51,782 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:50" (1/1) ... [2018-09-18 12:08:51,806 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:50" (1/1) ... [2018-09-18 12:08:51,872 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:50" (1/1) ... [2018-09-18 12:08:51,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 12:08:51,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 12:08:51,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 12:08:51,953 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 12:08:51,954 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:50" (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 12:08:52,032 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 12:08:52,033 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 12:08:52,033 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 12:08:52,033 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 12:08:52,033 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 12:08:52,033 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 12:08:52,033 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 12:08:52,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 12:08:52,034 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 12:08:52,034 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 12:09:06,318 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 12:09:06,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:09:06 BoogieIcfgContainer [2018-09-18 12:09:06,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 12:09:06,320 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 12:09:06,322 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 12:09:06,325 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 12:09:06,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 12:08:48" (1/3) ... [2018-09-18 12:09:06,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2436cc37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:09:06, skipping insertion in model container [2018-09-18 12:09:06,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 12:08:50" (2/3) ... [2018-09-18 12:09:06,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2436cc37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 12:09:06, skipping insertion in model container [2018-09-18 12:09:06,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 12:09:06" (3/3) ... [2018-09-18 12:09:06,329 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label02_true-unreach-call.c [2018-09-18 12:09:06,338 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 12:09:06,347 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 12:09:06,416 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 12:09:06,417 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 12:09:06,417 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 12:09:06,417 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 12:09:06,417 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 12:09:06,418 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 12:09:06,418 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 12:09:06,418 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 12:09:06,418 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 12:09:06,457 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states. [2018-09-18 12:09:06,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2018-09-18 12:09:06,467 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:09:06,468 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] [2018-09-18 12:09:06,469 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:09:06,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1150781316, now seen corresponding path program 1 times [2018-09-18 12:09:06,478 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:09:06,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:09:06,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:09:06,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:09:06,528 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:09:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:09:07,091 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 12:09:07,094 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:09:07,094 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 12:09:07,094 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:09:07,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 12:09:07,118 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 12:09:07,119 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:09:07,122 INFO L87 Difference]: Start difference. First operand 604 states. Second operand 4 states. [2018-09-18 12:09:24,053 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:09:24,053 INFO L93 Difference]: Finished difference Result 2162 states and 4007 transitions. [2018-09-18 12:09:24,054 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 12:09:24,055 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 60 [2018-09-18 12:09:24,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:09:24,086 INFO L225 Difference]: With dead ends: 2162 [2018-09-18 12:09:24,086 INFO L226 Difference]: Without dead ends: 1552 [2018-09-18 12:09:24,099 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 12:09:24,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1552 states. [2018-09-18 12:09:24,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1552 to 1525. [2018-09-18 12:09:24,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1525 states. [2018-09-18 12:09:24,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1525 states to 1525 states and 2696 transitions. [2018-09-18 12:09:24,283 INFO L78 Accepts]: Start accepts. Automaton has 1525 states and 2696 transitions. Word has length 60 [2018-09-18 12:09:24,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:09:24,284 INFO L480 AbstractCegarLoop]: Abstraction has 1525 states and 2696 transitions. [2018-09-18 12:09:24,285 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 12:09:24,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1525 states and 2696 transitions. [2018-09-18 12:09:24,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-09-18 12:09:24,305 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:09:24,308 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:09:24,309 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:09:24,309 INFO L82 PathProgramCache]: Analyzing trace with hash -1301087830, now seen corresponding path program 1 times [2018-09-18 12:09:24,309 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:09:24,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:09:24,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:09:24,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:09:24,312 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:09:24,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:09:24,678 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:09:24,679 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:09:24,679 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:09:24,679 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:09:24,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:09:24,682 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:09:24,682 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:09:24,683 INFO L87 Difference]: Start difference. First operand 1525 states and 2696 transitions. Second operand 6 states. [2018-09-18 12:09:39,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:09:39,106 INFO L93 Difference]: Finished difference Result 5786 states and 10682 transitions. [2018-09-18 12:09:39,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 12:09:39,107 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 139 [2018-09-18 12:09:39,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:09:39,144 INFO L225 Difference]: With dead ends: 5786 [2018-09-18 12:09:39,145 INFO L226 Difference]: Without dead ends: 4267 [2018-09-18 12:09:39,166 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-09-18 12:09:39,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4267 states. [2018-09-18 12:09:39,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4267 to 4243. [2018-09-18 12:09:39,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4243 states. [2018-09-18 12:09:39,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4243 states to 4243 states and 6361 transitions. [2018-09-18 12:09:39,331 INFO L78 Accepts]: Start accepts. Automaton has 4243 states and 6361 transitions. Word has length 139 [2018-09-18 12:09:39,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:09:39,333 INFO L480 AbstractCegarLoop]: Abstraction has 4243 states and 6361 transitions. [2018-09-18 12:09:39,333 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:09:39,333 INFO L276 IsEmpty]: Start isEmpty. Operand 4243 states and 6361 transitions. [2018-09-18 12:09:39,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-09-18 12:09:39,343 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:09:39,344 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:09:39,344 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:09:39,344 INFO L82 PathProgramCache]: Analyzing trace with hash 587930970, now seen corresponding path program 1 times [2018-09-18 12:09:39,344 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:09:39,345 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:09:39,346 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:09:39,346 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:09:39,346 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:09:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:09:39,695 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:09:40,068 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:09:40,069 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 12:09:40,069 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 12:09:40,069 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:09:40,070 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 12:09:40,073 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 12:09:40,073 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 12:09:40,074 INFO L87 Difference]: Start difference. First operand 4243 states and 6361 transitions. Second operand 6 states. [2018-09-18 12:09:46,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:09:46,069 INFO L93 Difference]: Finished difference Result 12712 states and 20728 transitions. [2018-09-18 12:09:46,071 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 12:09:46,072 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 140 [2018-09-18 12:09:46,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:09:46,127 INFO L225 Difference]: With dead ends: 12712 [2018-09-18 12:09:46,128 INFO L226 Difference]: Without dead ends: 8475 [2018-09-18 12:09:46,150 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 12:09:46,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8475 states. [2018-09-18 12:09:46,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8475 to 8387. [2018-09-18 12:09:46,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8387 states. [2018-09-18 12:09:46,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8387 states to 8387 states and 12580 transitions. [2018-09-18 12:09:46,411 INFO L78 Accepts]: Start accepts. Automaton has 8387 states and 12580 transitions. Word has length 140 [2018-09-18 12:09:46,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:09:46,411 INFO L480 AbstractCegarLoop]: Abstraction has 8387 states and 12580 transitions. [2018-09-18 12:09:46,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 12:09:46,412 INFO L276 IsEmpty]: Start isEmpty. Operand 8387 states and 12580 transitions. [2018-09-18 12:09:46,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2018-09-18 12:09:46,419 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:09:46,419 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, 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] [2018-09-18 12:09:46,424 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:09:46,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1560360268, now seen corresponding path program 1 times [2018-09-18 12:09:46,424 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:09:46,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:09:46,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:09:46,425 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:09:46,425 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:09:46,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:09:46,807 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:09:47,116 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 107 proven. 5 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2018-09-18 12:09:47,117 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:09:47,117 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 12:09:47,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:09:47,129 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:09:47,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:09:47,249 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:09:47,502 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:09:47,502 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:09:48,214 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 12:09:48,250 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:09:48,250 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 12:09:48,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:09:48,285 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:09:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:09:48,472 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:09:48,794 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-18 12:09:48,795 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:09:49,227 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-18 12:09:49,234 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 3 imperfect interpolant sequences. [2018-09-18 12:09:49,234 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [6, 5, 5] total 13 [2018-09-18 12:09:49,234 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:09:49,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 12:09:49,236 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 12:09:49,236 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-09-18 12:09:49,236 INFO L87 Difference]: Start difference. First operand 8387 states and 12580 transitions. Second operand 5 states. [2018-09-18 12:09:57,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:09:57,464 INFO L93 Difference]: Finished difference Result 20854 states and 31951 transitions. [2018-09-18 12:09:57,465 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 12:09:57,465 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 214 [2018-09-18 12:09:57,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:09:57,581 INFO L225 Difference]: With dead ends: 20854 [2018-09-18 12:09:57,582 INFO L226 Difference]: Without dead ends: 12448 [2018-09-18 12:09:57,648 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 864 GetRequests, 845 SyntacticMatches, 7 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2018-09-18 12:09:57,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12448 states. [2018-09-18 12:09:57,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12448 to 12438. [2018-09-18 12:09:57,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12438 states. [2018-09-18 12:09:58,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12438 states to 12438 states and 17307 transitions. [2018-09-18 12:09:58,042 INFO L78 Accepts]: Start accepts. Automaton has 12438 states and 17307 transitions. Word has length 214 [2018-09-18 12:09:58,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:09:58,043 INFO L480 AbstractCegarLoop]: Abstraction has 12438 states and 17307 transitions. [2018-09-18 12:09:58,043 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 12:09:58,043 INFO L276 IsEmpty]: Start isEmpty. Operand 12438 states and 17307 transitions. [2018-09-18 12:09:58,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2018-09-18 12:09:58,051 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:09:58,051 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, 2, 2, 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] [2018-09-18 12:09:58,051 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:09:58,055 INFO L82 PathProgramCache]: Analyzing trace with hash 331270812, now seen corresponding path program 1 times [2018-09-18 12:09:58,055 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:09:58,056 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:09:58,056 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:09:58,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:09:58,057 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:09:58,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:09:58,426 WARN L178 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 12:09:59,218 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 117 proven. 61 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-09-18 12:09:59,218 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:09:59,218 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 12:09:59,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:09:59,227 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:09:59,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:09:59,311 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:09:59,522 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-09-18 12:09:59,523 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:09:59,634 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-09-18 12:09:59,657 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 12:09:59,657 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 8 [2018-09-18 12:09:59,657 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 12:09:59,658 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 12:09:59,658 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 12:09:59,659 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:09:59,659 INFO L87 Difference]: Start difference. First operand 12438 states and 17307 transitions. Second operand 3 states. [2018-09-18 12:10:04,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:10:04,557 INFO L93 Difference]: Finished difference Result 24870 states and 34641 transitions. [2018-09-18 12:10:04,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 12:10:04,558 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 227 [2018-09-18 12:10:04,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:10:04,619 INFO L225 Difference]: With dead ends: 24870 [2018-09-18 12:10:04,619 INFO L226 Difference]: Without dead ends: 12438 [2018-09-18 12:10:04,662 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 465 GetRequests, 454 SyntacticMatches, 5 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2018-09-18 12:10:04,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12438 states. [2018-09-18 12:10:04,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12438 to 12438. [2018-09-18 12:10:04,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12438 states. [2018-09-18 12:10:04,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12438 states to 12438 states and 16714 transitions. [2018-09-18 12:10:04,959 INFO L78 Accepts]: Start accepts. Automaton has 12438 states and 16714 transitions. Word has length 227 [2018-09-18 12:10:04,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:10:04,961 INFO L480 AbstractCegarLoop]: Abstraction has 12438 states and 16714 transitions. [2018-09-18 12:10:04,961 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 12:10:04,961 INFO L276 IsEmpty]: Start isEmpty. Operand 12438 states and 16714 transitions. [2018-09-18 12:10:04,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 305 [2018-09-18 12:10:04,972 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:10:04,973 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 12:10:04,973 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:10:04,973 INFO L82 PathProgramCache]: Analyzing trace with hash -1376012018, now seen corresponding path program 1 times [2018-09-18 12:10:04,973 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:10:04,974 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:10:04,974 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:10:04,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:10:04,976 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:10:05,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:10:05,846 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-09-18 12:10:05,846 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:10:05,846 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 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:10:05,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:10:05,860 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:10:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:10:05,965 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:10:06,166 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-09-18 12:10:06,166 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:10:06,504 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-09-18 12:10:06,526 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:10:06,526 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 6 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 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:10:06,541 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:10:06,542 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:10:06,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:10:06,785 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:10:06,846 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2018-09-18 12:10:06,846 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:10:07,094 INFO L134 CoverageAnalysis]: Checked inductivity of 392 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [MP cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (6)] Exception during sending of exit command (exit): Broken pipe [2018-09-18 12:10:07,097 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:10:07,097 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 9 [2018-09-18 12:10:07,097 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:10:07,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-18 12:10:07,098 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-18 12:10:07,098 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-18 12:10:07,098 INFO L87 Difference]: Start difference. First operand 12438 states and 16714 transitions. Second operand 7 states. [2018-09-18 12:10:23,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 12:10:23,899 INFO L93 Difference]: Finished difference Result 37404 states and 50538 transitions. [2018-09-18 12:10:23,899 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-18 12:10:23,899 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 304 [2018-09-18 12:10:23,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 12:10:23,996 INFO L225 Difference]: With dead ends: 37404 [2018-09-18 12:10:23,997 INFO L226 Difference]: Without dead ends: 24928 [2018-09-18 12:10:24,035 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1230 GetRequests, 1216 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2018-09-18 12:10:24,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24928 states. [2018-09-18 12:10:24,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24928 to 22764. [2018-09-18 12:10:24,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22764 states. [2018-09-18 12:10:24,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22764 states to 22764 states and 29093 transitions. [2018-09-18 12:10:24,610 INFO L78 Accepts]: Start accepts. Automaton has 22764 states and 29093 transitions. Word has length 304 [2018-09-18 12:10:24,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 12:10:24,611 INFO L480 AbstractCegarLoop]: Abstraction has 22764 states and 29093 transitions. [2018-09-18 12:10:24,611 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-18 12:10:24,611 INFO L276 IsEmpty]: Start isEmpty. Operand 22764 states and 29093 transitions. [2018-09-18 12:10:24,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2018-09-18 12:10:24,632 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 12:10:24,633 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:10:24,633 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 12:10:24,634 INFO L82 PathProgramCache]: Analyzing trace with hash -1730216867, now seen corresponding path program 1 times [2018-09-18 12:10:24,634 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 12:10:24,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:10:24,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:10:24,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 12:10:24,635 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 12:10:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:10:25,577 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 169 proven. 146 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2018-09-18 12:10:25,577 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:10:25,577 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 12:10:25,594 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:10:25,594 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:10:25,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:10:25,709 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:10:28,262 WARN L178 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 42 DAG size of output: 17 [2018-09-18 12:10:28,363 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 264 proven. 2 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2018-09-18 12:10:28,363 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:10:29,198 WARN L178 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 24 [2018-09-18 12:10:29,964 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 169 proven. 227 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:10:29,984 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 12:10:29,984 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 12:10:30,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 12:10:30,001 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 12:10:30,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 12:10:30,252 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 12:10:30,420 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 264 proven. 2 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2018-09-18 12:10:30,420 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 12:10:31,408 INFO L134 CoverageAnalysis]: Checked inductivity of 401 backedges. 169 proven. 227 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 12:10:31,410 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 12:10:31,411 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8, 7, 8] total 15 [2018-09-18 12:10:31,411 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 12:10:31,413 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-18 12:10:31,413 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-18 12:10:31,413 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2018-09-18 12:10:31,414 INFO L87 Difference]: Start difference. First operand 22764 states and 29093 transitions. Second operand 10 states. Received shutdown request... [2018-09-18 12:13:00,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-18 12:13:00,757 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 12:13:00,762 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 12:13:00,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 12:13:00 BoogieIcfgContainer [2018-09-18 12:13:00,763 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 12:13:00,763 INFO L168 Benchmark]: Toolchain (without parser) took 252033.18 ms. Allocated memory was 1.5 GB in the beginning and 3.1 GB in the end (delta: 1.6 GB). Free memory was 1.4 GB in the beginning and 2.3 GB in the end (delta: -929.9 MB). Peak memory consumption was 672.9 MB. Max. memory is 7.1 GB. [2018-09-18 12:13:00,765 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 12:13:00,765 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1915.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. [2018-09-18 12:13:00,766 INFO L168 Benchmark]: Boogie Procedure Inliner took 345.93 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-09-18 12:13:00,767 INFO L168 Benchmark]: Boogie Preprocessor took 953.74 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 891.3 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB. [2018-09-18 12:13:00,768 INFO L168 Benchmark]: RCFGBuilder took 14366.43 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 458.4 MB). Peak memory consumption was 458.4 MB. Max. memory is 7.1 GB. [2018-09-18 12:13:00,768 INFO L168 Benchmark]: TraceAbstraction took 234442.11 ms. Allocated memory was 2.4 GB in the beginning and 3.1 GB in the end (delta: 711.5 MB). Free memory was 1.8 GB in the beginning and 2.3 GB in the end (delta: -505.3 MB). Peak memory consumption was 206.2 MB. Max. memory is 7.1 GB. [2018-09-18 12:13:00,773 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1915.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 179.7 MB). Peak memory consumption was 179.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 345.93 ms. Allocated memory is still 1.5 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 953.74 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 891.3 MB). Free memory was 1.1 GB in the beginning and 2.3 GB in the end (delta: -1.1 GB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 14366.43 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 1.8 GB in the end (delta: 458.4 MB). Peak memory consumption was 458.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 234442.11 ms. Allocated memory was 2.4 GB in the beginning and 3.1 GB in the end (delta: 711.5 MB). Free memory was 1.8 GB in the beginning and 2.3 GB in the end (delta: -505.3 MB). Peak memory consumption was 206.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 167]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 167). Cancelled while BasicCegarLoop was constructing difference of abstraction (22764states) and FLOYD_HOARE automaton (currently 18 states, 10 states before enhancement), while ReachableStatesComputation was computing reachable states (44446 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 604 locations, 1 error locations. TIMEOUT Result, 234.3s OverallTime, 7 OverallIterations, 4 TraceHistogramMax, 217.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2005 SDtfs, 14327 SDslu, 2194 SDs, 0 SdLazy, 25737 SolverSat, 6259 SolverUnsat, 67 SolverUnknown, 0 SolverNotchecked, 207.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4012 GetRequests, 3922 SyntacticMatches, 22 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 301 ImplicationChecksByTransitivity, 8.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22764occurred 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: 1.8s AutomataMinimizationTime, 6 MinimizatonAttempts, 2313 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 12.5s InterpolantComputationTime, 3397 NumberOfCodeBlocks, 3397 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 5339 ConstructedInterpolants, 186 QuantifiedInterpolants, 5808132 SizeOfPredicates, 11 NumberOfNonLiveVariables, 3464 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 21 InterpolantComputations, 7 PerfectInterpolantSequences, 4847/5531 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/Problem17_label02_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_12-13-00-787.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem17_label02_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_12-13-00-787.csv Completed graceful shutdown