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/Problem11_label55_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:26:23,825 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:26:23,828 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:26:23,843 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:26:23,843 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:26:23,844 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:26:23,845 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:26:23,847 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:26:23,849 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:26:23,850 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:26:23,851 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:26:23,851 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:26:23,852 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:26:23,853 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:26:23,854 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:26:23,855 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:26:23,856 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:26:23,859 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:26:23,864 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:26:23,866 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:26:23,870 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:26:23,875 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:26:23,878 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 11:26:23,878 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 11:26:23,879 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 11:26:23,882 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 11:26:23,884 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 11:26:23,884 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 11:26:23,887 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 11:26:23,891 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 11:26:23,891 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 11:26:23,892 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-18 11:26:23,895 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 11:26:23,921 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:26:23,924 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:26:23,925 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:26:23,925 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:26:23,925 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:26:23,925 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:26:23,926 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:26:23,926 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:26:23,926 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:26:23,926 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:26:23,927 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:26:23,927 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:26:23,928 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:26:23,928 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:26:23,928 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:26:23,929 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:26:23,929 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:26:23,930 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:26:23,930 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:26:23,930 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:26:23,930 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:26:23,930 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:26:23,931 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:26:23,931 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:26:23,931 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:26:23,931 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:26:23,933 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:26:23,933 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:26:23,933 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:26:23,934 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:26:23,934 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:26:23,934 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:26:23,934 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:26:23,934 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:26:23,995 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:26:24,012 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:26:24,018 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:26:24,020 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:26:24,021 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:26:24,021 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label55_true-unreach-call.c [2018-09-18 11:26:24,397 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86d29ddf7/40b1a69ece114cb68b7833b5f802da03/FLAGb0598c922 [2018-09-18 11:26:24,775 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:26:24,778 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label55_true-unreach-call.c [2018-09-18 11:26:24,795 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86d29ddf7/40b1a69ece114cb68b7833b5f802da03/FLAGb0598c922 [2018-09-18 11:26:24,815 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86d29ddf7/40b1a69ece114cb68b7833b5f802da03 [2018-09-18 11:26:24,829 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:26:24,832 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:26:24,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:26:24,835 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:26:24,842 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:26:24,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:26:24" (1/1) ... [2018-09-18 11:26:24,847 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6efa186f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:26:24, skipping insertion in model container [2018-09-18 11:26:24,847 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:26:24" (1/1) ... [2018-09-18 11:26:24,859 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:26:25,547 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:26:25,566 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:26:25,760 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:26:25,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:26:25 WrapperNode [2018-09-18 11:26:25,838 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:26:25,839 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:26:25,839 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:26:25,839 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:26:25,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:26:25" (1/1) ... [2018-09-18 11:26:25,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:26:25" (1/1) ... [2018-09-18 11:26:26,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:26:26,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:26:26,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:26:26,006 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:26:26,262 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:26:25" (1/1) ... [2018-09-18 11:26:26,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:26:25" (1/1) ... [2018-09-18 11:26:26,277 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:26:25" (1/1) ... [2018-09-18 11:26:26,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:26:25" (1/1) ... [2018-09-18 11:26:26,340 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:26:25" (1/1) ... [2018-09-18 11:26:26,365 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:26:25" (1/1) ... [2018-09-18 11:26:26,393 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:26:25" (1/1) ... [2018-09-18 11:26:26,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:26:26,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:26:26,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:26:26,416 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:26:26,418 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:26:25" (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 11:26:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:26:26,493 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:26:26,493 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:26:26,494 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:26:26,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:26:26,495 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:26:26,495 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:26:26,495 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:26:30,937 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:26:30,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:26:30 BoogieIcfgContainer [2018-09-18 11:26:30,938 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:26:30,939 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:26:30,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:26:30,943 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:26:30,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:26:24" (1/3) ... [2018-09-18 11:26:30,944 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be52dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:26:30, skipping insertion in model container [2018-09-18 11:26:30,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:26:25" (2/3) ... [2018-09-18 11:26:30,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7be52dd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:26:30, skipping insertion in model container [2018-09-18 11:26:30,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:26:30" (3/3) ... [2018-09-18 11:26:30,947 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label55_true-unreach-call.c [2018-09-18 11:26:30,958 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:26:30,969 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:26:31,027 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:26:31,028 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:26:31,028 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:26:31,028 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:26:31,029 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:26:31,029 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:26:31,029 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:26:31,029 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:26:31,029 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:26:31,060 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-09-18 11:26:31,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-18 11:26:31,070 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:26:31,071 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] [2018-09-18 11:26:31,072 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:26:31,078 INFO L82 PathProgramCache]: Analyzing trace with hash 2008695804, now seen corresponding path program 1 times [2018-09-18 11:26:31,081 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:26:31,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:31,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:31,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:31,140 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:26:31,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:31,622 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 11:26:31,624 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:26:31,625 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:26:31,625 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:26:31,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:26:31,650 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:26:31,651 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:26:31,654 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-09-18 11:26:35,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:26:35,165 INFO L93 Difference]: Finished difference Result 979 states and 1754 transitions. [2018-09-18 11:26:35,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:26:35,172 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 52 [2018-09-18 11:26:35,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:26:35,194 INFO L225 Difference]: With dead ends: 979 [2018-09-18 11:26:35,194 INFO L226 Difference]: Without dead ends: 680 [2018-09-18 11:26:35,204 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:26:35,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2018-09-18 11:26:35,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 484. [2018-09-18 11:26:35,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 484 states. [2018-09-18 11:26:35,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 730 transitions. [2018-09-18 11:26:35,303 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 730 transitions. Word has length 52 [2018-09-18 11:26:35,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:26:35,304 INFO L480 AbstractCegarLoop]: Abstraction has 484 states and 730 transitions. [2018-09-18 11:26:35,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:26:35,305 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 730 transitions. [2018-09-18 11:26:35,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2018-09-18 11:26:35,312 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:26:35,312 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:26:35,312 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:26:35,313 INFO L82 PathProgramCache]: Analyzing trace with hash -1306963893, now seen corresponding path program 1 times [2018-09-18 11:26:35,313 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:26:35,314 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:35,314 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:35,315 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:35,315 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:26:35,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:35,643 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:26:35,643 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:26:35,643 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:26:35,644 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:26:35,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:26:35,647 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:26:35,647 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:26:35,647 INFO L87 Difference]: Start difference. First operand 484 states and 730 transitions. Second operand 6 states. [2018-09-18 11:26:39,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:26:39,478 INFO L93 Difference]: Finished difference Result 1555 states and 2493 transitions. [2018-09-18 11:26:39,482 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:26:39,482 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 125 [2018-09-18 11:26:39,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:26:39,491 INFO L225 Difference]: With dead ends: 1555 [2018-09-18 11:26:39,491 INFO L226 Difference]: Without dead ends: 1077 [2018-09-18 11:26:39,494 INFO L604 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 [2018-09-18 11:26:39,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2018-09-18 11:26:39,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 1063. [2018-09-18 11:26:39,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1063 states. [2018-09-18 11:26:39,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1063 states to 1063 states and 1592 transitions. [2018-09-18 11:26:39,561 INFO L78 Accepts]: Start accepts. Automaton has 1063 states and 1592 transitions. Word has length 125 [2018-09-18 11:26:39,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:26:39,562 INFO L480 AbstractCegarLoop]: Abstraction has 1063 states and 1592 transitions. [2018-09-18 11:26:39,562 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:26:39,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1063 states and 1592 transitions. [2018-09-18 11:26:39,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-09-18 11:26:39,566 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:26:39,567 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:26:39,567 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:26:39,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1349379296, now seen corresponding path program 1 times [2018-09-18 11:26:39,567 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:26:39,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:39,568 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:39,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:39,569 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:26:39,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:39,816 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:26:39,816 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:26:39,818 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:26:39,819 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:26:39,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:26:39,820 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:26:39,820 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:26:39,820 INFO L87 Difference]: Start difference. First operand 1063 states and 1592 transitions. Second operand 4 states. [2018-09-18 11:26:42,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:26:42,928 INFO L93 Difference]: Finished difference Result 2907 states and 4465 transitions. [2018-09-18 11:26:42,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:26:42,930 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 126 [2018-09-18 11:26:42,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:26:42,946 INFO L225 Difference]: With dead ends: 2907 [2018-09-18 11:26:42,946 INFO L226 Difference]: Without dead ends: 1850 [2018-09-18 11:26:42,953 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:26:42,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1850 states. [2018-09-18 11:26:43,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1850 to 1646. [2018-09-18 11:26:43,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1646 states. [2018-09-18 11:26:43,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1646 states to 1646 states and 2436 transitions. [2018-09-18 11:26:43,018 INFO L78 Accepts]: Start accepts. Automaton has 1646 states and 2436 transitions. Word has length 126 [2018-09-18 11:26:43,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:26:43,019 INFO L480 AbstractCegarLoop]: Abstraction has 1646 states and 2436 transitions. [2018-09-18 11:26:43,019 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:26:43,019 INFO L276 IsEmpty]: Start isEmpty. Operand 1646 states and 2436 transitions. [2018-09-18 11:26:43,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-09-18 11:26:43,024 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:26:43,025 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:26:43,025 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:26:43,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1663032705, now seen corresponding path program 1 times [2018-09-18 11:26:43,025 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:26:43,026 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:43,026 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:43,027 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:43,027 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:26:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:43,456 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:26:43,456 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:26:43,456 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 11:26:43,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:43,468 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:26:43,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:43,554 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:26:44,282 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:26:44,283 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:26:44,579 WARN L178 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-18 11:26:45,612 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:26:45,634 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 11:26:45,635 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [7] total 12 [2018-09-18 11:26:45,635 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:26:45,635 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:26:45,636 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:26:45,636 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:26:45,636 INFO L87 Difference]: Start difference. First operand 1646 states and 2436 transitions. Second operand 5 states. [2018-09-18 11:26:50,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:26:50,423 INFO L93 Difference]: Finished difference Result 4846 states and 7179 transitions. [2018-09-18 11:26:50,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:26:50,424 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2018-09-18 11:26:50,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:26:50,443 INFO L225 Difference]: With dead ends: 4846 [2018-09-18 11:26:50,444 INFO L226 Difference]: Without dead ends: 3011 [2018-09-18 11:26:50,452 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 291 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2018-09-18 11:26:50,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3011 states. [2018-09-18 11:26:50,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3011 to 2921. [2018-09-18 11:26:50,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2921 states. [2018-09-18 11:26:50,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2921 states to 2921 states and 4233 transitions. [2018-09-18 11:26:50,547 INFO L78 Accepts]: Start accepts. Automaton has 2921 states and 4233 transitions. Word has length 147 [2018-09-18 11:26:50,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:26:50,548 INFO L480 AbstractCegarLoop]: Abstraction has 2921 states and 4233 transitions. [2018-09-18 11:26:50,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:26:50,548 INFO L276 IsEmpty]: Start isEmpty. Operand 2921 states and 4233 transitions. [2018-09-18 11:26:50,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2018-09-18 11:26:50,556 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:26:50,557 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:26:50,557 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:26:50,557 INFO L82 PathProgramCache]: Analyzing trace with hash 639193526, now seen corresponding path program 1 times [2018-09-18 11:26:50,557 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:26:50,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:50,558 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:50,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:26:50,559 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:26:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:51,438 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 8 DAG size of output: 3 [2018-09-18 11:26:51,522 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-18 11:26:51,522 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:26:51,523 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 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 [2018-09-18 11:26:51,539 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:26:51,539 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:26:51,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:26:51,658 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:26:52,438 WARN L178 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 35 [2018-09-18 11:26:52,675 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 93 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-18 11:26:52,675 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:26:53,094 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 6 [2018-09-18 11:26:53,692 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-18 11:26:53,714 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:26:53,715 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 6] total 11 [2018-09-18 11:26:53,715 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:26:53,715 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:26:53,715 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:26:53,716 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:26:53,716 INFO L87 Difference]: Start difference. First operand 2921 states and 4233 transitions. Second operand 6 states. [2018-09-18 11:27:01,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:27:01,873 INFO L93 Difference]: Finished difference Result 8577 states and 13355 transitions. [2018-09-18 11:27:01,873 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 11:27:01,874 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 264 [2018-09-18 11:27:01,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:27:01,918 INFO L225 Difference]: With dead ends: 8577 [2018-09-18 11:27:01,919 INFO L226 Difference]: Without dead ends: 5662 [2018-09-18 11:27:01,948 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 538 GetRequests, 523 SyntacticMatches, 6 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:27:01,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5662 states. [2018-09-18 11:27:02,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5662 to 5437. [2018-09-18 11:27:02,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5437 states. [2018-09-18 11:27:02,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5437 states to 5437 states and 8222 transitions. [2018-09-18 11:27:02,106 INFO L78 Accepts]: Start accepts. Automaton has 5437 states and 8222 transitions. Word has length 264 [2018-09-18 11:27:02,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:27:02,107 INFO L480 AbstractCegarLoop]: Abstraction has 5437 states and 8222 transitions. [2018-09-18 11:27:02,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:27:02,108 INFO L276 IsEmpty]: Start isEmpty. Operand 5437 states and 8222 transitions. [2018-09-18 11:27:02,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2018-09-18 11:27:02,123 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:27:02,123 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:27:02,124 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:27:02,124 INFO L82 PathProgramCache]: Analyzing trace with hash 1866650356, now seen corresponding path program 1 times [2018-09-18 11:27:02,124 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:27:02,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:27:02,125 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:27:02,125 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:27:02,125 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:27:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:27:02,704 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 189 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:27:02,705 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:27:02,705 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 11:27:02,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:27:02,722 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:27:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:27:02,819 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:27:02,961 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-09-18 11:27:02,961 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:27:03,154 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-09-18 11:27:03,176 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 11:27:03,176 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2018-09-18 11:27:03,177 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:27:03,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:27:03,177 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:27:03,178 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-18 11:27:03,178 INFO L87 Difference]: Start difference. First operand 5437 states and 8222 transitions. Second operand 3 states. [2018-09-18 11:27:05,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:27:05,051 INFO L93 Difference]: Finished difference Result 14266 states and 22836 transitions. [2018-09-18 11:27:05,052 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:27:05,052 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 287 [2018-09-18 11:27:05,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:27:05,103 INFO L225 Difference]: With dead ends: 14266 [2018-09-18 11:27:05,103 INFO L226 Difference]: Without dead ends: 8835 [2018-09-18 11:27:05,149 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 579 GetRequests, 574 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-18 11:27:05,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8835 states. [2018-09-18 11:27:05,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8835 to 8694. [2018-09-18 11:27:05,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8694 states. [2018-09-18 11:27:05,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8694 states to 8694 states and 12559 transitions. [2018-09-18 11:27:05,385 INFO L78 Accepts]: Start accepts. Automaton has 8694 states and 12559 transitions. Word has length 287 [2018-09-18 11:27:05,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:27:05,386 INFO L480 AbstractCegarLoop]: Abstraction has 8694 states and 12559 transitions. [2018-09-18 11:27:05,386 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:27:05,386 INFO L276 IsEmpty]: Start isEmpty. Operand 8694 states and 12559 transitions. [2018-09-18 11:27:05,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2018-09-18 11:27:05,434 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:27:05,435 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:27:05,435 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:27:05,435 INFO L82 PathProgramCache]: Analyzing trace with hash 2118604793, now seen corresponding path program 1 times [2018-09-18 11:27:05,436 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:27:05,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:27:05,437 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:27:05,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:27:05,437 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:27:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:27:06,803 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 97 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-09-18 11:27:06,803 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:27:06,803 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 11:27:06,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:27:06,811 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:27:06,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:27:06,920 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:27:10,517 WARN L178 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 42 DAG size of output: 32 [2018-09-18 11:27:10,724 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 11 proven. 86 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-09-18 11:27:10,724 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:27:11,209 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:11,253 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:11,296 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:11,337 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:11,388 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:11,442 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:11,507 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:11,571 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:11,706 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:11,754 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:11,816 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:11,856 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:11,938 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:11,976 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:12,014 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:12,071 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:12,116 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:12,174 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:12,287 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:12,356 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:12,407 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:12,454 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:12,499 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:12,561 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:12,639 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:12,742 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:12,781 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:12,821 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:12,867 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:12,920 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:12,959 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:12,997 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:13,331 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:13,659 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:13,994 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:14,172 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:14,212 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:14,253 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:14,309 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:14,351 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:14,423 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:14,468 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:14,513 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:14,553 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:14,671 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:14,712 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:14,751 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:14,790 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:14,877 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:14,919 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:14,959 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:15,034 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:15,076 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:15,115 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:15,156 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:15,263 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:15,304 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:15,518 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:15,577 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:15,628 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:15,680 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:15,723 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:15,761 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:15,799 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:15,873 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:15,911 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:15,969 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,006 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,042 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,081 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,117 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,157 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,209 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,281 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,320 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,378 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,415 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,452 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,494 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,532 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,581 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,638 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,676 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,729 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,795 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,833 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,880 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,917 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,956 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:16,996 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:17,032 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:17,071 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:17,114 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:17,178 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:17,215 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:17,256 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:17,306 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:17,369 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:17,413 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:17,452 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:17,505 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:17,544 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:17,589 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:17,633 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:17,678 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:17,720 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:17,793 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:17,834 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:17,898 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:18,239 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:18,303 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:18,402 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:18,450 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:18,735 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:18,772 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:18,809 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:18,846 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:18,905 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:18,942 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:18,977 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:19,014 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:19,054 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:19,091 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:19,129 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:19,165 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:19,282 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:19,318 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:19,498 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:19,534 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:19,571 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:19,607 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:19,642 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:19,680 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:19,716 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:19,752 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:19,790 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:19,826 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:19,862 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:19,899 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:19,938 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:19,974 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:20,011 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:20,047 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:20,083 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:20,119 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:20,211 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:20,248 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:20,285 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:20,324 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:20,361 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:20,399 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:20,436 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:20,482 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:20,522 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:20,559 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:20,661 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:20,698 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:20,756 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:20,796 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:20,834 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:20,877 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:20,928 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:20,965 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:21,002 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:21,042 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:21,081 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:21,119 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:27:24,834 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 93 proven. 127 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:27:24,855 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:27:24,855 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 11:27:24,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:27:24,872 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:27:25,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:27:25,105 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:27:25,520 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-09-18 11:27:25,521 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:27:25,690 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 93 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-09-18 11:27:25,692 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 3 imperfect interpolant sequences. [2018-09-18 11:27:25,692 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [10, 9, 9] total 24 [2018-09-18 11:27:25,692 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:27:25,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:27:25,693 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:27:25,693 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=418, Unknown=1, NotChecked=0, Total=552 [2018-09-18 11:27:25,693 INFO L87 Difference]: Start difference. First operand 8694 states and 12559 transitions. Second operand 3 states. [2018-09-18 11:27:29,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:27:29,242 INFO L93 Difference]: Finished difference Result 21153 states and 31925 transitions. [2018-09-18 11:27:29,244 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:27:29,244 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 360 [2018-09-18 11:27:29,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:27:29,313 INFO L225 Difference]: With dead ends: 21153 [2018-09-18 11:27:29,313 INFO L226 Difference]: Without dead ends: 12465 [2018-09-18 11:27:29,369 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1451 GetRequests, 1259 SyntacticMatches, 170 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1845 ImplicationChecksByTransitivity, 16.7s TimeCoverageRelationStatistics Valid=133, Invalid=418, Unknown=1, NotChecked=0, Total=552 [2018-09-18 11:27:29,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12465 states. [2018-09-18 11:27:29,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12465 to 12397. [2018-09-18 11:27:29,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12397 states. [2018-09-18 11:27:29,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12397 states to 12397 states and 18064 transitions. [2018-09-18 11:27:29,734 INFO L78 Accepts]: Start accepts. Automaton has 12397 states and 18064 transitions. Word has length 360 [2018-09-18 11:27:29,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:27:29,735 INFO L480 AbstractCegarLoop]: Abstraction has 12397 states and 18064 transitions. [2018-09-18 11:27:29,735 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:27:29,735 INFO L276 IsEmpty]: Start isEmpty. Operand 12397 states and 18064 transitions. [2018-09-18 11:27:29,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 401 [2018-09-18 11:27:29,828 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:27:29,828 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, 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, 1, 1, 1] [2018-09-18 11:27:29,829 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:27:29,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1328655591, now seen corresponding path program 1 times [2018-09-18 11:27:29,829 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:27:29,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:27:29,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:27:29,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:27:29,830 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:27:29,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:27:31,519 WARN L178 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2018-09-18 11:27:32,230 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 356 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:27:32,231 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:27:32,231 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 11:27:32,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:27:32,238 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:27:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:27:32,362 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:27:32,518 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 398 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-09-18 11:27:32,519 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:27:32,837 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 259 proven. 94 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-09-18 11:27:32,858 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:27:32,858 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 11:27:32,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:27:32,874 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:27:33,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:27:33,153 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:27:33,364 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 398 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-09-18 11:27:33,365 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:27:33,809 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 259 proven. 94 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2018-09-18 11:27:33,811 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:27:33,811 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5, 5, 5, 5] total 24 [2018-09-18 11:27:33,811 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:27:33,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-18 11:27:33,812 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-18 11:27:33,813 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=454, Unknown=0, NotChecked=0, Total=552 [2018-09-18 11:27:33,813 INFO L87 Difference]: Start difference. First operand 12397 states and 18064 transitions. Second operand 20 states. [2018-09-18 11:27:37,895 WARN L178 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2018-09-18 11:27:41,857 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2018-09-18 11:27:42,677 WARN L178 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 29 [2018-09-18 11:27:43,067 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2018-09-18 11:27:45,701 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 23 [2018-09-18 11:27:46,628 WARN L178 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 19 [2018-09-18 11:27:50,730 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2018-09-18 11:27:52,384 WARN L178 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2018-09-18 11:27:56,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:27:56,143 INFO L93 Difference]: Finished difference Result 37448 states and 62743 transitions. [2018-09-18 11:27:56,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2018-09-18 11:27:56,144 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 400 [2018-09-18 11:27:56,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:27:56,236 INFO L225 Difference]: With dead ends: 37448 [2018-09-18 11:27:56,236 INFO L226 Difference]: Without dead ends: 18354 [2018-09-18 11:27:56,362 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1738 GetRequests, 1620 SyntacticMatches, 2 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4931 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=2041, Invalid=11765, Unknown=0, NotChecked=0, Total=13806 [2018-09-18 11:27:56,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18354 states. [2018-09-18 11:27:56,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18354 to 16856. [2018-09-18 11:27:56,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16856 states. [2018-09-18 11:27:56,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16856 states to 16856 states and 22935 transitions. [2018-09-18 11:27:56,928 INFO L78 Accepts]: Start accepts. Automaton has 16856 states and 22935 transitions. Word has length 400 [2018-09-18 11:27:56,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:27:56,929 INFO L480 AbstractCegarLoop]: Abstraction has 16856 states and 22935 transitions. [2018-09-18 11:27:56,929 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-09-18 11:27:56,929 INFO L276 IsEmpty]: Start isEmpty. Operand 16856 states and 22935 transitions. [2018-09-18 11:27:56,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2018-09-18 11:27:56,975 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:27:56,976 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:27:56,976 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:27:56,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1320224044, now seen corresponding path program 1 times [2018-09-18 11:27:56,977 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:27:56,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:27:56,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:27:56,978 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:27:56,978 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:27:57,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:27:57,860 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 360 proven. 99 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-09-18 11:27:57,860 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:27:57,860 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 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:27:57,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:27:57,877 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:27:57,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:27:58,005 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:27:58,245 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 365 proven. 2 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-09-18 11:27:58,245 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:27:58,591 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 365 proven. 2 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2018-09-18 11:27:58,612 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:27:58,612 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 10 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 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:27:58,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:27:58,631 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:27:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:27:58,935 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:27:59,416 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 137 proven. 229 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-09-18 11:27:59,416 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:28:00,081 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 362 proven. 4 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2018-09-18 11:28:00,084 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:28:00,084 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 7, 8] total 12 [2018-09-18 11:28:00,085 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:28:00,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:28:00,086 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:28:00,086 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:28:00,086 INFO L87 Difference]: Start difference. First operand 16856 states and 22935 transitions. Second operand 6 states. [2018-09-18 11:28:01,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:28:01,807 INFO L93 Difference]: Finished difference Result 35599 states and 51522 transitions. [2018-09-18 11:28:01,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:28:01,807 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 429 [2018-09-18 11:28:01,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:28:01,885 INFO L225 Difference]: With dead ends: 35599 [2018-09-18 11:28:01,885 INFO L226 Difference]: Without dead ends: 18754 [2018-09-18 11:28:01,936 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1728 GetRequests, 1705 SyntacticMatches, 10 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2018-09-18 11:28:01,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18754 states. [2018-09-18 11:28:02,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18754 to 17905. [2018-09-18 11:28:02,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17905 states. [2018-09-18 11:28:02,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17905 states to 17905 states and 22594 transitions. [2018-09-18 11:28:02,355 INFO L78 Accepts]: Start accepts. Automaton has 17905 states and 22594 transitions. Word has length 429 [2018-09-18 11:28:02,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:28:02,355 INFO L480 AbstractCegarLoop]: Abstraction has 17905 states and 22594 transitions. [2018-09-18 11:28:02,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:28:02,356 INFO L276 IsEmpty]: Start isEmpty. Operand 17905 states and 22594 transitions. [2018-09-18 11:28:02,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 441 [2018-09-18 11:28:02,391 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:28:02,392 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 11:28:02,392 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:28:02,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1633679686, now seen corresponding path program 1 times [2018-09-18 11:28:02,392 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:28:02,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:28:02,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:28:02,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:28:02,393 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:28:02,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:28:03,211 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 141 proven. 234 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-09-18 11:28:03,211 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:28:03,211 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 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:28:03,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:28:03,225 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:28:03,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:28:03,349 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:28:07,242 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 328 proven. 107 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-09-18 11:28:07,242 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:28:08,511 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 374 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:28:08,532 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:28:08,532 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 12 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 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:28:08,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:28:08,550 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:28:08,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:28:08,827 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:28:10,537 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 328 proven. 107 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2018-09-18 11:28:10,537 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:28:11,312 INFO L134 CoverageAnalysis]: Checked inductivity of 481 backedges. 374 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:28:11,314 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:28:11,314 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8, 8, 8] total 19 [2018-09-18 11:28:11,314 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:28:11,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-09-18 11:28:11,315 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-09-18 11:28:11,316 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=245, Unknown=4, NotChecked=0, Total=342 [2018-09-18 11:28:11,316 INFO L87 Difference]: Start difference. First operand 17905 states and 22594 transitions. Second operand 11 states. [2018-09-18 11:30:06,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:30:06,150 INFO L93 Difference]: Finished difference Result 46660 states and 65495 transitions. [2018-09-18 11:30:06,150 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-09-18 11:30:06,150 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 440 [2018-09-18 11:30:06,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:30:06,317 INFO L225 Difference]: With dead ends: 46660 [2018-09-18 11:30:06,317 INFO L226 Difference]: Without dead ends: 28766 [2018-09-18 11:30:06,394 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1801 GetRequests, 1755 SyntacticMatches, 12 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 18.9s TimeCoverageRelationStatistics Valid=309, Invalid=936, Unknown=15, NotChecked=0, Total=1260 [2018-09-18 11:30:06,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28766 states. [2018-09-18 11:30:07,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28766 to 27593. [2018-09-18 11:30:07,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27593 states. [2018-09-18 11:30:07,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27593 states to 27593 states and 35310 transitions. [2018-09-18 11:30:07,100 INFO L78 Accepts]: Start accepts. Automaton has 27593 states and 35310 transitions. Word has length 440 [2018-09-18 11:30:07,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:30:07,101 INFO L480 AbstractCegarLoop]: Abstraction has 27593 states and 35310 transitions. [2018-09-18 11:30:07,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-09-18 11:30:07,101 INFO L276 IsEmpty]: Start isEmpty. Operand 27593 states and 35310 transitions. [2018-09-18 11:30:07,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 473 [2018-09-18 11:30:07,158 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:30:07,158 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:30:07,158 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:30:07,159 INFO L82 PathProgramCache]: Analyzing trace with hash -1575379774, now seen corresponding path program 1 times [2018-09-18 11:30:07,159 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:30:07,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:30:07,160 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:30:07,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:30:07,160 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:30:07,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:30:07,774 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 145 proven. 320 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2018-09-18 11:30:07,775 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:30:07,775 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 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:30:07,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:30:07,783 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:30:07,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:30:07,918 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:30:08,124 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 326 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-09-18 11:30:08,124 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:30:08,412 WARN L178 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 37 [2018-09-18 11:30:09,191 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 326 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-09-18 11:30:09,211 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:30:09,211 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 14 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 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:30:09,226 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:30:09,226 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:30:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:30:09,543 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:30:09,670 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 326 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-09-18 11:30:09,671 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:30:10,336 INFO L134 CoverageAnalysis]: Checked inductivity of 473 backedges. 326 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2018-09-18 11:30:10,338 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:30:10,338 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5, 5, 5] total 14 [2018-09-18 11:30:10,339 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:30:10,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-18 11:30:10,340 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-18 11:30:10,340 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=145, Unknown=0, NotChecked=0, Total=182 [2018-09-18 11:30:10,341 INFO L87 Difference]: Start difference. First operand 27593 states and 35310 transitions. Second operand 12 states. [2018-09-18 11:30:23,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:30:23,524 INFO L93 Difference]: Finished difference Result 65705 states and 86777 transitions. [2018-09-18 11:30:23,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2018-09-18 11:30:23,525 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 472 [2018-09-18 11:30:23,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:30:23,683 INFO L225 Difference]: With dead ends: 65705 [2018-09-18 11:30:23,683 INFO L226 Difference]: Without dead ends: 38309 [2018-09-18 11:30:23,785 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1987 GetRequests, 1924 SyntacticMatches, 3 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1162 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=622, Invalid=3160, Unknown=0, NotChecked=0, Total=3782 [2018-09-18 11:30:23,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38309 states. [2018-09-18 11:30:24,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38309 to 36481. [2018-09-18 11:30:24,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36481 states. [2018-09-18 11:30:24,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36481 states to 36481 states and 47015 transitions. [2018-09-18 11:30:24,684 INFO L78 Accepts]: Start accepts. Automaton has 36481 states and 47015 transitions. Word has length 472 [2018-09-18 11:30:24,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:30:24,685 INFO L480 AbstractCegarLoop]: Abstraction has 36481 states and 47015 transitions. [2018-09-18 11:30:24,685 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-18 11:30:24,685 INFO L276 IsEmpty]: Start isEmpty. Operand 36481 states and 47015 transitions. [2018-09-18 11:30:24,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2018-09-18 11:30:24,829 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:30:24,830 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2018-09-18 11:30:24,830 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:30:24,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1842472452, now seen corresponding path program 1 times [2018-09-18 11:30:24,830 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:30:24,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:30:24,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:30:24,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:30:24,832 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:30:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:30:25,446 INFO L134 CoverageAnalysis]: Checked inductivity of 1364 backedges. 243 proven. 6 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2018-09-18 11:30:25,447 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:30:25,447 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 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:30:25,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:30:25,462 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:30:25,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:30:25,675 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:30:26,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1364 backedges. 782 proven. 0 refuted. 0 times theorem prover too weak. 582 trivial. 0 not checked. [2018-09-18 11:30:26,260 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:30:26,482 INFO L134 CoverageAnalysis]: Checked inductivity of 1364 backedges. 243 proven. 6 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2018-09-18 11:30:26,502 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:30:26,503 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 3 [2018-09-18 11:30:26,503 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:30:26,504 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:30:26,504 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:30:26,504 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:30:26,504 INFO L87 Difference]: Start difference. First operand 36481 states and 47015 transitions. Second operand 3 states. [2018-09-18 11:30:28,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:30:28,203 INFO L93 Difference]: Finished difference Result 78883 states and 102214 transitions. [2018-09-18 11:30:28,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:30:28,204 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 698 [2018-09-18 11:30:28,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:30:28,338 INFO L225 Difference]: With dead ends: 78883 [2018-09-18 11:30:28,339 INFO L226 Difference]: Without dead ends: 35670 [2018-09-18 11:30:28,489 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1398 GetRequests, 1397 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:30:28,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35670 states. [2018-09-18 11:30:29,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35670 to 35477. [2018-09-18 11:30:29,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35477 states. [2018-09-18 11:30:29,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35477 states to 35477 states and 43744 transitions. [2018-09-18 11:30:29,209 INFO L78 Accepts]: Start accepts. Automaton has 35477 states and 43744 transitions. Word has length 698 [2018-09-18 11:30:29,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:30:29,209 INFO L480 AbstractCegarLoop]: Abstraction has 35477 states and 43744 transitions. [2018-09-18 11:30:29,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:30:29,210 INFO L276 IsEmpty]: Start isEmpty. Operand 35477 states and 43744 transitions. [2018-09-18 11:30:29,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 700 [2018-09-18 11:30:29,326 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:30:29,326 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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 11:30:29,327 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:30:29,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1860436743, now seen corresponding path program 1 times [2018-09-18 11:30:29,327 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:30:29,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:30:29,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:30:29,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:30:29,328 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:30:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-09-18 11:30:30,258 INFO L134 CoverageAnalysis]: Checked inductivity of 1367 backedges. 634 proven. 94 refuted. 0 times theorem prover too weak. 639 trivial. 0 not checked. [2018-09-18 11:30:30,258 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:30:30,258 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 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:30:30,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:30:30,268 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:30:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:30:30,462 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:30:30,486 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-09-18 11:30:30,687 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:30:30,688 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 11:30:30,693 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 11:30:30,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 11:30:30 BoogieIcfgContainer [2018-09-18 11:30:30,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 11:30:30,694 INFO L168 Benchmark]: Toolchain (without parser) took 245864.70 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 3.3 GB in the end (delta: -1.9 GB). Peak memory consumption was 489.1 MB. Max. memory is 7.1 GB. [2018-09-18 11:30:30,695 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 11:30:30,696 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1004.27 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-09-18 11:30:30,697 INFO L168 Benchmark]: Boogie Procedure Inliner took 166.33 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-18 11:30:30,697 INFO L168 Benchmark]: Boogie Preprocessor took 409.45 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 815.3 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -939.9 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. [2018-09-18 11:30:30,698 INFO L168 Benchmark]: RCFGBuilder took 4523.00 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 183.1 MB). Peak memory consumption was 183.1 MB. Max. memory is 7.1 GB. [2018-09-18 11:30:30,699 INFO L168 Benchmark]: TraceAbstraction took 239754.00 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 2.1 GB in the beginning and 3.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 335.5 MB. Max. memory is 7.1 GB. [2018-09-18 11:30:30,703 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1004.27 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 166.33 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 409.45 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 815.3 MB). Free memory was 1.3 GB in the beginning and 2.3 GB in the end (delta: -939.9 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4523.00 ms. Allocated memory is still 2.3 GB. Free memory was 2.3 GB in the beginning and 2.1 GB in the end (delta: 183.1 MB). Peak memory consumption was 183.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 239754.00 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 2.1 GB in the beginning and 3.3 GB in the end (delta: -1.2 GB). Peak memory consumption was 335.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 141]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 141). Cancelled while BasicCegarLoop was analyzing trace of length 700 with TraceHistMax 6, while TraceCheckSpWp was constructing forward predicates, while PredicateComparison was comparing new predicate (quantifier-free) to 5 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 239.6s OverallTime, 13 OverallIterations, 6 TraceHistogramMax, 184.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2554 SDtfs, 16689 SDslu, 3034 SDs, 0 SdLazy, 31565 SolverSat, 8039 SolverUnsat, 60 SolverUnknown, 0 SolverNotchecked, 150.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11546 GetRequests, 11057 SyntacticMatches, 205 SemanticMatches, 284 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8343 ImplicationChecksByTransitivity, 50.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36481occurred in iteration=11, 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: 4.3s AutomataMinimizationTime, 12 MinimizatonAttempts, 6479 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.4s SsaConstructionTime, 2.7s SatisfiabilityAnalysisTime, 43.8s InterpolantComputationTime, 9398 NumberOfCodeBlocks, 9398 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 14956 ConstructedInterpolants, 592 QuantifiedInterpolants, 32937077 SizeOfPredicates, 23 NumberOfNonLiveVariables, 8925 ConjunctsInSsa, 150 ConjunctsInUnsatCore, 40 InterpolantComputations, 11 PerfectInterpolantSequences, 13712/15875 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/Problem11_label55_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_11-30-30-720.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem11_label55_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_11-30-30-720.csv Completed graceful shutdown