java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label51_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 00:17:52,769 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 00:17:52,771 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 00:17:52,784 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 00:17:52,784 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 00:17:52,785 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 00:17:52,787 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 00:17:52,788 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 00:17:52,790 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 00:17:52,791 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 00:17:52,792 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 00:17:52,792 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 00:17:52,793 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 00:17:52,794 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 00:17:52,798 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 00:17:52,799 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 00:17:52,803 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 00:17:52,808 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 00:17:52,810 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 00:17:52,811 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 00:17:52,812 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 00:17:52,814 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 00:17:52,816 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-25 00:17:52,824 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-25 00:17:52,839 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 00:17:52,840 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 00:17:52,841 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 00:17:52,841 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 00:17:52,841 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 00:17:52,841 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 00:17:52,841 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 00:17:52,842 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 00:17:52,842 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 00:17:52,842 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 00:17:52,842 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 00:17:52,842 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 00:17:52,843 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 00:17:52,843 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 00:17:52,844 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 00:17:52,844 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 00:17:52,844 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 00:17:52,844 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 00:17:52,844 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 00:17:52,844 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 00:17:52,845 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 00:17:52,845 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 00:17:52,845 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 00:17:52,845 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 00:17:52,845 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 00:17:52,846 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 00:17:52,846 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 00:17:52,846 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 00:17:52,846 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 00:17:52,846 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 00:17:52,847 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 00:17:52,847 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 00:17:52,847 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 00:17:52,847 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 00:17:52,847 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 00:17:52,847 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 00:17:52,891 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 00:17:52,903 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 00:17:52,907 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 00:17:52,909 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 00:17:52,909 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 00:17:52,910 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label51_true-unreach-call.c [2018-10-25 00:17:52,968 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bf5ab4f95/01ba1161cf424415932f4760b73744a4/FLAGd69acccce [2018-10-25 00:17:53,615 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 00:17:53,616 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label51_true-unreach-call.c [2018-10-25 00:17:53,633 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bf5ab4f95/01ba1161cf424415932f4760b73744a4/FLAGd69acccce [2018-10-25 00:17:53,649 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/bf5ab4f95/01ba1161cf424415932f4760b73744a4 [2018-10-25 00:17:53,661 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 00:17:53,663 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 00:17:53,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 00:17:53,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 00:17:53,668 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 00:17:53,669 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 12:17:53" (1/1) ... [2018-10-25 00:17:53,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5de7335f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:53, skipping insertion in model container [2018-10-25 00:17:53,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 12:17:53" (1/1) ... [2018-10-25 00:17:53,683 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 00:17:53,770 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 00:17:54,538 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 00:17:54,544 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 00:17:54,837 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 00:17:54,860 INFO L193 MainTranslator]: Completed translation [2018-10-25 00:17:54,861 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:54 WrapperNode [2018-10-25 00:17:54,861 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 00:17:54,862 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 00:17:54,863 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 00:17:54,863 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 00:17:54,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:54" (1/1) ... [2018-10-25 00:17:54,927 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:54" (1/1) ... [2018-10-25 00:17:55,181 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 00:17:55,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 00:17:55,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 00:17:55,182 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 00:17:55,193 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:54" (1/1) ... [2018-10-25 00:17:55,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:54" (1/1) ... [2018-10-25 00:17:55,203 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:54" (1/1) ... [2018-10-25 00:17:55,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:54" (1/1) ... [2018-10-25 00:17:55,273 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:54" (1/1) ... [2018-10-25 00:17:55,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:54" (1/1) ... [2018-10-25 00:17:55,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:54" (1/1) ... [2018-10-25 00:17:55,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 00:17:55,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 00:17:55,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 00:17:55,317 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 00:17:55,321 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-25 00:17:55,393 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 00:17:55,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 00:17:55,394 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 00:17:55,394 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 00:17:55,394 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 00:17:55,394 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 00:17:55,395 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 00:17:55,395 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 00:18:00,504 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 00:18:00,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:18:00 BoogieIcfgContainer [2018-10-25 00:18:00,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 00:18:00,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 00:18:00,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 00:18:00,511 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 00:18:00,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 12:17:53" (1/3) ... [2018-10-25 00:18:00,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32841bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 12:18:00, skipping insertion in model container [2018-10-25 00:18:00,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 12:17:54" (2/3) ... [2018-10-25 00:18:00,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32841bf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 12:18:00, skipping insertion in model container [2018-10-25 00:18:00,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 12:18:00" (3/3) ... [2018-10-25 00:18:00,517 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem03_label51_true-unreach-call.c [2018-10-25 00:18:00,529 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 00:18:00,548 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 00:18:00,568 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 00:18:00,633 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 00:18:00,633 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 00:18:00,634 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 00:18:00,634 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 00:18:00,634 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 00:18:00,634 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 00:18:00,634 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 00:18:00,634 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 00:18:00,679 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states. [2018-10-25 00:18:00,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2018-10-25 00:18:00,709 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:18:00,710 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:18:00,717 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:18:00,726 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:18:00,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1377037548, now seen corresponding path program 1 times [2018-10-25 00:18:00,730 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:18:00,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:18:00,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:18:00,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:18:00,796 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:18:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:18:01,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:18:01,984 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:18:01,984 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-25 00:18:01,985 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:18:01,991 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-25 00:18:02,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-25 00:18:02,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-25 00:18:02,013 INFO L87 Difference]: Start difference. First operand 312 states. Second operand 4 states. [2018-10-25 00:18:05,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:18:05,137 INFO L93 Difference]: Finished difference Result 1077 states and 1927 transitions. [2018-10-25 00:18:05,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-25 00:18:05,140 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 195 [2018-10-25 00:18:05,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:18:05,166 INFO L225 Difference]: With dead ends: 1077 [2018-10-25 00:18:05,166 INFO L226 Difference]: Without dead ends: 759 [2018-10-25 00:18:05,175 INFO L605 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 [2018-10-25 00:18:05,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2018-10-25 00:18:05,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 519. [2018-10-25 00:18:05,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 519 states. [2018-10-25 00:18:05,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 918 transitions. [2018-10-25 00:18:05,273 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 918 transitions. Word has length 195 [2018-10-25 00:18:05,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:18:05,274 INFO L481 AbstractCegarLoop]: Abstraction has 519 states and 918 transitions. [2018-10-25 00:18:05,274 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-25 00:18:05,275 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 918 transitions. [2018-10-25 00:18:05,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2018-10-25 00:18:05,283 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:18:05,283 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:18:05,283 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:18:05,284 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:18:05,284 INFO L82 PathProgramCache]: Analyzing trace with hash 233310665, now seen corresponding path program 1 times [2018-10-25 00:18:05,284 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:18:05,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:18:05,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:18:05,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:18:05,286 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:18:05,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:18:05,590 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:18:05,590 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:18:05,591 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 00:18:05,591 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:18:05,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 00:18:05,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 00:18:05,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 00:18:05,594 INFO L87 Difference]: Start difference. First operand 519 states and 918 transitions. Second operand 6 states. [2018-10-25 00:18:09,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:18:09,156 INFO L93 Difference]: Finished difference Result 1480 states and 2698 transitions. [2018-10-25 00:18:09,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 00:18:09,163 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 223 [2018-10-25 00:18:09,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:18:09,175 INFO L225 Difference]: With dead ends: 1480 [2018-10-25 00:18:09,175 INFO L226 Difference]: Without dead ends: 967 [2018-10-25 00:18:09,184 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 00:18:09,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2018-10-25 00:18:09,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 949. [2018-10-25 00:18:09,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 949 states. [2018-10-25 00:18:09,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1579 transitions. [2018-10-25 00:18:09,260 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1579 transitions. Word has length 223 [2018-10-25 00:18:09,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:18:09,261 INFO L481 AbstractCegarLoop]: Abstraction has 949 states and 1579 transitions. [2018-10-25 00:18:09,261 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 00:18:09,261 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1579 transitions. [2018-10-25 00:18:09,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2018-10-25 00:18:09,270 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:18:09,272 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:18:09,273 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:18:09,273 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:18:09,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1168787131, now seen corresponding path program 1 times [2018-10-25 00:18:09,273 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:18:09,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:18:09,275 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:18:09,275 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:18:09,275 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:18:09,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:18:09,620 WARN L179 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 4 [2018-10-25 00:18:09,788 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:18:09,788 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:18:09,788 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 00:18:09,789 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:18:09,789 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 00:18:09,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 00:18:09,790 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 00:18:09,790 INFO L87 Difference]: Start difference. First operand 949 states and 1579 transitions. Second operand 6 states. [2018-10-25 00:18:12,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:18:12,768 INFO L93 Difference]: Finished difference Result 2923 states and 5085 transitions. [2018-10-25 00:18:12,770 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-25 00:18:12,770 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 230 [2018-10-25 00:18:12,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:18:12,788 INFO L225 Difference]: With dead ends: 2923 [2018-10-25 00:18:12,789 INFO L226 Difference]: Without dead ends: 1980 [2018-10-25 00:18:12,796 INFO L605 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 [2018-10-25 00:18:12,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1980 states. [2018-10-25 00:18:12,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1980 to 1937. [2018-10-25 00:18:12,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1937 states. [2018-10-25 00:18:12,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1937 states to 1937 states and 3132 transitions. [2018-10-25 00:18:12,901 INFO L78 Accepts]: Start accepts. Automaton has 1937 states and 3132 transitions. Word has length 230 [2018-10-25 00:18:12,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:18:12,903 INFO L481 AbstractCegarLoop]: Abstraction has 1937 states and 3132 transitions. [2018-10-25 00:18:12,903 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 00:18:12,903 INFO L276 IsEmpty]: Start isEmpty. Operand 1937 states and 3132 transitions. [2018-10-25 00:18:12,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2018-10-25 00:18:12,916 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:18:12,916 INFO L375 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:18:12,917 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:18:12,917 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:18:12,917 INFO L82 PathProgramCache]: Analyzing trace with hash 735234804, now seen corresponding path program 1 times [2018-10-25 00:18:12,917 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:18:12,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:18:12,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:18:12,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:18:12,919 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:18:13,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:18:13,386 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 00:18:13,386 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 00:18:13,387 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 00:18:13,387 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:18:13,388 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 00:18:13,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 00:18:13,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 00:18:13,388 INFO L87 Difference]: Start difference. First operand 1937 states and 3132 transitions. Second operand 3 states. [2018-10-25 00:18:15,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:18:15,442 INFO L93 Difference]: Finished difference Result 5678 states and 9481 transitions. [2018-10-25 00:18:15,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 00:18:15,450 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 241 [2018-10-25 00:18:15,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:18:15,479 INFO L225 Difference]: With dead ends: 5678 [2018-10-25 00:18:15,480 INFO L226 Difference]: Without dead ends: 3747 [2018-10-25 00:18:15,490 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 00:18:15,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3747 states. [2018-10-25 00:18:15,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3747 to 3742. [2018-10-25 00:18:15,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3742 states. [2018-10-25 00:18:15,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 5849 transitions. [2018-10-25 00:18:15,612 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 5849 transitions. Word has length 241 [2018-10-25 00:18:15,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:18:15,613 INFO L481 AbstractCegarLoop]: Abstraction has 3742 states and 5849 transitions. [2018-10-25 00:18:15,614 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 00:18:15,615 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 5849 transitions. [2018-10-25 00:18:15,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2018-10-25 00:18:15,633 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:18:15,634 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 00:18:15,634 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:18:15,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:18:15,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1160092379, now seen corresponding path program 1 times [2018-10-25 00:18:15,635 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:18:15,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:18:15,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:18:15,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:18:15,636 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:18:15,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:18:15,913 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 00:18:16,302 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 45 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-25 00:18:16,303 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:18:16,303 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:18:16,304 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 249 with the following transitions: [2018-10-25 00:18:16,307 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [68], [73], [75], [76], [80], [84], [88], [92], [95], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1021], [1023], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:18:16,406 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:18:16,406 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:18:17,760 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 00:18:17,763 INFO L272 AbstractInterpreter]: Visited 196 different actions 196 times. Never merged. Never widened. Never found a fixpoint. Largest state had 88 variables. [2018-10-25 00:18:17,803 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:18:17,803 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 00:18:19,167 INFO L232 lantSequenceWeakener]: Weakened 237 states. On average, predicates are now at 73.54% of their original sizes. [2018-10-25 00:18:19,167 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 00:18:19,831 INFO L413 sIntCurrentIteration]: We have 247 unified AI predicates [2018-10-25 00:18:19,831 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 00:18:19,832 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 00:18:19,833 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [6] total 17 [2018-10-25 00:18:19,833 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:18:19,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-10-25 00:18:19,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-10-25 00:18:19,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2018-10-25 00:18:19,834 INFO L87 Difference]: Start difference. First operand 3742 states and 5849 transitions. Second operand 13 states. [2018-10-25 00:19:32,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:19:32,863 INFO L93 Difference]: Finished difference Result 7688 states and 11993 transitions. [2018-10-25 00:19:32,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 00:19:32,863 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 248 [2018-10-25 00:19:32,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:19:32,883 INFO L225 Difference]: With dead ends: 7688 [2018-10-25 00:19:32,883 INFO L226 Difference]: Without dead ends: 3952 [2018-10-25 00:19:32,896 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 248 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2018-10-25 00:19:32,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states. [2018-10-25 00:19:32,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3950. [2018-10-25 00:19:32,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3950 states. [2018-10-25 00:19:33,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3950 states to 3950 states and 6066 transitions. [2018-10-25 00:19:33,010 INFO L78 Accepts]: Start accepts. Automaton has 3950 states and 6066 transitions. Word has length 248 [2018-10-25 00:19:33,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:19:33,010 INFO L481 AbstractCegarLoop]: Abstraction has 3950 states and 6066 transitions. [2018-10-25 00:19:33,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-10-25 00:19:33,011 INFO L276 IsEmpty]: Start isEmpty. Operand 3950 states and 6066 transitions. [2018-10-25 00:19:33,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2018-10-25 00:19:33,029 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:19:33,029 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-25 00:19:33,030 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:19:33,030 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:19:33,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1018040286, now seen corresponding path program 1 times [2018-10-25 00:19:33,030 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:19:33,031 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:19:33,031 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:19:33,032 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:19:33,032 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:19:33,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:19:33,330 WARN L179 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 00:19:33,380 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 60 proven. 27 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-10-25 00:19:33,381 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:19:33,381 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:19:33,381 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 261 with the following transitions: [2018-10-25 00:19:33,382 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [24], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [65], [68], [73], [75], [76], [80], [84], [88], [92], [95], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1021], [1023], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:19:33,392 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:19:33,393 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:19:34,537 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 00:19:34,537 INFO L272 AbstractInterpreter]: Visited 200 different actions 394 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 88 variables. [2018-10-25 00:19:34,549 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:19:34,549 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 00:19:36,265 INFO L232 lantSequenceWeakener]: Weakened 255 states. On average, predicates are now at 73.39% of their original sizes. [2018-10-25 00:19:36,266 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 00:19:37,457 INFO L413 sIntCurrentIteration]: We have 259 unified AI predicates [2018-10-25 00:19:37,457 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 00:19:37,458 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 00:19:37,458 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [6] total 24 [2018-10-25 00:19:37,458 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 00:19:37,459 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-25 00:19:37,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-25 00:19:37,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=303, Unknown=0, NotChecked=0, Total=380 [2018-10-25 00:19:37,460 INFO L87 Difference]: Start difference. First operand 3950 states and 6066 transitions. Second operand 20 states. [2018-10-25 00:21:27,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:21:27,484 INFO L93 Difference]: Finished difference Result 7900 states and 12217 transitions. [2018-10-25 00:21:27,484 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-25 00:21:27,484 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 260 [2018-10-25 00:21:27,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:21:27,505 INFO L225 Difference]: With dead ends: 7900 [2018-10-25 00:21:27,505 INFO L226 Difference]: Without dead ends: 4164 [2018-10-25 00:21:27,517 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 268 GetRequests, 241 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=180, Invalid=632, Unknown=0, NotChecked=0, Total=812 [2018-10-25 00:21:27,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4164 states. [2018-10-25 00:21:27,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4164 to 4161. [2018-10-25 00:21:27,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4161 states. [2018-10-25 00:21:27,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4161 states to 4161 states and 6294 transitions. [2018-10-25 00:21:27,633 INFO L78 Accepts]: Start accepts. Automaton has 4161 states and 6294 transitions. Word has length 260 [2018-10-25 00:21:27,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:21:27,633 INFO L481 AbstractCegarLoop]: Abstraction has 4161 states and 6294 transitions. [2018-10-25 00:21:27,634 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-10-25 00:21:27,634 INFO L276 IsEmpty]: Start isEmpty. Operand 4161 states and 6294 transitions. [2018-10-25 00:21:27,654 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2018-10-25 00:21:27,654 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:21:27,655 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2018-10-25 00:21:27,655 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:21:27,655 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:21:27,656 INFO L82 PathProgramCache]: Analyzing trace with hash -287623958, now seen corresponding path program 1 times [2018-10-25 00:21:27,656 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:21:27,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:21:27,657 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:21:27,657 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:21:27,657 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:21:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:21:28,126 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 89 proven. 22 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-10-25 00:21:28,126 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:21:28,127 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:21:28,127 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 271 with the following transitions: [2018-10-25 00:21:28,127 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [68], [73], [75], [76], [80], [84], [88], [92], [95], [96], [100], [104], [108], [112], [116], [120], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1021], [1023], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:21:28,148 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:21:28,149 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:21:35,648 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 00:21:35,649 INFO L272 AbstractInterpreter]: Visited 201 different actions 593 times. Merged at 7 different actions 13 times. Never widened. Found 3 fixpoints after 1 different actions. Largest state had 88 variables. [2018-10-25 00:21:35,658 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:21:35,659 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 00:21:35,659 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:21:35,659 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-25 00:21:35,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:21:35,668 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 00:21:35,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:21:35,937 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 00:21:36,522 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 110 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-10-25 00:21:36,522 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 00:21:37,233 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 110 proven. 2 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2018-10-25 00:21:37,256 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 00:21:37,257 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 10 [2018-10-25 00:21:37,257 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 00:21:37,258 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-25 00:21:37,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-25 00:21:37,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-10-25 00:21:37,258 INFO L87 Difference]: Start difference. First operand 4161 states and 6294 transitions. Second operand 9 states. [2018-10-25 00:21:41,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:21:41,892 INFO L93 Difference]: Finished difference Result 12077 states and 21270 transitions. [2018-10-25 00:21:41,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-10-25 00:21:41,893 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 270 [2018-10-25 00:21:41,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:21:41,975 INFO L225 Difference]: With dead ends: 12077 [2018-10-25 00:21:41,975 INFO L226 Difference]: Without dead ends: 8130 [2018-10-25 00:21:42,016 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 559 GetRequests, 541 SyntacticMatches, 2 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=98, Invalid=208, Unknown=0, NotChecked=0, Total=306 [2018-10-25 00:21:42,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8130 states. [2018-10-25 00:21:42,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8130 to 7406. [2018-10-25 00:21:42,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7406 states. [2018-10-25 00:21:42,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7406 states to 7406 states and 10880 transitions. [2018-10-25 00:21:42,354 INFO L78 Accepts]: Start accepts. Automaton has 7406 states and 10880 transitions. Word has length 270 [2018-10-25 00:21:42,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 00:21:42,354 INFO L481 AbstractCegarLoop]: Abstraction has 7406 states and 10880 transitions. [2018-10-25 00:21:42,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-25 00:21:42,355 INFO L276 IsEmpty]: Start isEmpty. Operand 7406 states and 10880 transitions. [2018-10-25 00:21:42,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2018-10-25 00:21:42,388 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 00:21:42,388 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-25 00:21:42,389 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 00:21:42,389 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:21:42,389 INFO L82 PathProgramCache]: Analyzing trace with hash -1836466746, now seen corresponding path program 1 times [2018-10-25 00:21:42,389 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 00:21:42,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:21:42,390 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:21:42,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 00:21:42,391 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 00:21:42,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:21:43,003 WARN L179 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-10-25 00:21:43,087 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 132 proven. 34 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2018-10-25 00:21:43,087 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:21:43,087 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 00:21:43,087 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 312 with the following transitions: [2018-10-25 00:21:43,088 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [13], [17], [21], [25], [29], [33], [37], [41], [45], [49], [53], [57], [61], [64], [65], [76], [80], [84], [88], [92], [96], [100], [104], [108], [112], [116], [120], [123], [124], [128], [132], [136], [140], [144], [148], [159], [163], [167], [171], [175], [179], [183], [187], [191], [202], [206], [210], [221], [225], [229], [233], [237], [240], [241], [245], [249], [253], [257], [261], [265], [269], [273], [277], [281], [285], [289], [293], [297], [308], [312], [323], [327], [331], [335], [339], [343], [347], [351], [355], [359], [363], [367], [371], [375], [379], [383], [394], [398], [402], [406], [417], [421], [425], [429], [433], [437], [441], [445], [449], [453], [457], [461], [472], [476], [480], [484], [488], [492], [496], [500], [504], [508], [512], [516], [520], [524], [528], [532], [536], [540], [551], [555], [559], [570], [574], [585], [589], [593], [597], [601], [605], [609], [613], [624], [635], [646], [650], [654], [658], [662], [666], [673], [681], [689], [697], [705], [713], [721], [729], [737], [745], [753], [761], [769], [777], [785], [793], [801], [809], [817], [825], [833], [841], [849], [857], [865], [873], [881], [889], [897], [905], [913], [921], [929], [937], [945], [953], [961], [969], [977], [985], [993], [1001], [1009], [1017], [1021], [1023], [1157], [1161], [1165], [1171], [1175], [1177], [1182], [1183], [1184], [1186], [1187] [2018-10-25 00:21:43,094 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 00:21:43,094 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 00:21:48,441 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-25 00:21:48,441 INFO L272 AbstractInterpreter]: Visited 201 different actions 606 times. Merged at 8 different actions 26 times. Never widened. Found 5 fixpoints after 3 different actions. Largest state had 88 variables. [2018-10-25 00:21:48,477 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 00:21:48,477 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-25 00:21:48,477 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 00:21:48,478 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-25 00:21:48,492 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 00:21:48,492 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-25 00:21:48,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 00:21:48,717 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-25 00:21:48,886 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 132 proven. 30 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-10-25 00:21:48,887 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-25 00:21:49,398 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 160 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2018-10-25 00:21:49,420 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-25 00:21:49,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2018-10-25 00:21:49,421 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-25 00:21:49,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-25 00:21:49,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-25 00:21:49,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2018-10-25 00:21:49,422 INFO L87 Difference]: Start difference. First operand 7406 states and 10880 transitions. Second operand 8 states. [2018-10-25 00:21:50,412 WARN L179 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-10-25 00:21:56,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 00:21:56,484 INFO L93 Difference]: Finished difference Result 24292 states and 38480 transitions. [2018-10-25 00:21:56,486 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2018-10-25 00:21:56,487 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 311 [2018-10-25 00:21:56,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 00:21:56,581 INFO L225 Difference]: With dead ends: 24292 [2018-10-25 00:21:56,581 INFO L226 Difference]: Without dead ends: 17311 [2018-10-25 00:21:56,633 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 679 GetRequests, 642 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 341 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=288, Invalid=972, Unknown=0, NotChecked=0, Total=1260 [2018-10-25 00:21:56,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17311 states. Received shutdown request... [2018-10-25 00:21:57,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17311 to 15929. [2018-10-25 00:21:57,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15929 states. [2018-10-25 00:21:57,192 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-25 00:21:57,200 WARN L205 ceAbstractionStarter]: Timeout [2018-10-25 00:21:57,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 12:21:57 BoogieIcfgContainer [2018-10-25 00:21:57,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-25 00:21:57,202 INFO L168 Benchmark]: Toolchain (without parser) took 243540.57 ms. Allocated memory was 1.5 GB in the beginning and 4.0 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 1.0 GB in the end (delta: 409.8 MB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2018-10-25 00:21:57,203 INFO L168 Benchmark]: CDTParser took 0.19 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. [2018-10-25 00:21:57,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1197.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. [2018-10-25 00:21:57,207 INFO L168 Benchmark]: Boogie Procedure Inliner took 319.29 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -874.0 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. [2018-10-25 00:21:57,208 INFO L168 Benchmark]: Boogie Preprocessor took 133.89 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2018-10-25 00:21:57,209 INFO L168 Benchmark]: RCFGBuilder took 5189.07 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 249.9 MB). Peak memory consumption was 249.9 MB. Max. memory is 7.1 GB. [2018-10-25 00:21:57,209 INFO L168 Benchmark]: TraceAbstraction took 236694.83 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.9 GB in the beginning and 1.0 GB in the end (delta: 932.7 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. [2018-10-25 00:21:57,216 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 1197.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 87.2 MB). Peak memory consumption was 87.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 319.29 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -874.0 MB). Peak memory consumption was 40.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.89 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 5189.07 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 249.9 MB). Peak memory consumption was 249.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 236694.83 ms. Allocated memory was 2.3 GB in the beginning and 4.0 GB in the end (delta: 1.7 GB). Free memory was 1.9 GB in the beginning and 1.0 GB in the end (delta: 932.7 MB). Peak memory consumption was 2.6 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1599]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1599). Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 312 locations, 1 error locations. TIMEOUT Result, 236.5s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 206.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1859 SDtfs, 9728 SDslu, 3399 SDs, 0 SdLazy, 20990 SolverSat, 3058 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 165.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 1784 GetRequests, 1671 SyntacticMatches, 7 SemanticMatches, 106 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 543 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7406occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 15.5s AbstIntTime, 4 AbstIntIterations, 2 AbstIntStrong, 0.9991464436204452 AbsIntWeakeningRatio, 0.27865612648221344 AbsIntAvgWeakeningVarsNumRemoved, 29.75296442687747 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 1035 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 2559 NumberOfCodeBlocks, 2559 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 3128 ConstructedInterpolants, 0 QuantifiedInterpolants, 2024575 SizeOfPredicates, 2 NumberOfNonLiveVariables, 2525 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 12 InterpolantComputations, 4 PerfectInterpolantSequences, 1083/1220 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown