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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label19_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-df4b876 [2018-11-07 15:19:34,858 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-07 15:19:34,860 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-07 15:19:34,872 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-07 15:19:34,873 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-07 15:19:34,874 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-07 15:19:34,875 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-07 15:19:34,877 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-07 15:19:34,879 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-07 15:19:34,880 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-07 15:19:34,881 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-07 15:19:34,881 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-07 15:19:34,882 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-07 15:19:34,883 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-07 15:19:34,884 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-07 15:19:34,885 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-07 15:19:34,886 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-07 15:19:34,888 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-07 15:19:34,890 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-07 15:19:34,891 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-07 15:19:34,893 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-07 15:19:34,894 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-07 15:19:34,896 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-07 15:19:34,897 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-07 15:19:34,897 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-07 15:19:34,898 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-07 15:19:34,899 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-07 15:19:34,900 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-07 15:19:34,901 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-07 15:19:34,902 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-07 15:19:34,902 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-07 15:19:34,903 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-11-07 15:19:34,906 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf [2018-11-07 15:19:34,922 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-07 15:19:34,922 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-07 15:19:34,923 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-07 15:19:34,923 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-07 15:19:34,923 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-07 15:19:34,924 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-07 15:19:34,924 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-07 15:19:34,924 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-07 15:19:34,924 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-07 15:19:34,924 INFO L133 SettingsManager]: * Log string format=TERM [2018-11-07 15:19:34,925 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-07 15:19:34,925 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-07 15:19:34,926 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-07 15:19:34,926 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-07 15:19:34,926 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-07 15:19:34,926 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-07 15:19:34,926 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-07 15:19:34,927 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-07 15:19:34,927 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-07 15:19:34,927 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-07 15:19:34,927 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-07 15:19:34,927 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-07 15:19:34,928 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-07 15:19:34,928 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-07 15:19:34,928 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-07 15:19:34,928 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-07 15:19:34,928 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-07 15:19:34,929 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-07 15:19:34,930 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-07 15:19:34,930 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-07 15:19:34,930 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-07 15:19:34,930 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-07 15:19:34,931 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-11-07 15:19:34,931 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-11-07 15:19:34,997 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-07 15:19:35,017 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-07 15:19:35,022 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-07 15:19:35,024 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-07 15:19:35,024 INFO L276 PluginConnector]: CDTParser initialized [2018-11-07 15:19:35,025 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label19_true-unreach-call.c [2018-11-07 15:19:35,090 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24a64fabb/d26e4307ff984c41b215f611961bc39e/FLAG07e017f61 [2018-11-07 15:19:35,827 INFO L298 CDTParser]: Found 1 translation units. [2018-11-07 15:19:35,828 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label19_true-unreach-call.c [2018-11-07 15:19:35,854 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24a64fabb/d26e4307ff984c41b215f611961bc39e/FLAG07e017f61 [2018-11-07 15:19:35,872 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/24a64fabb/d26e4307ff984c41b215f611961bc39e [2018-11-07 15:19:35,883 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-07 15:19:35,885 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-07 15:19:35,887 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-07 15:19:35,887 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-07 15:19:35,893 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-07 15:19:35,894 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:19:35" (1/1) ... [2018-11-07 15:19:35,897 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@517b094a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:35, skipping insertion in model container [2018-11-07 15:19:35,897 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 03:19:35" (1/1) ... [2018-11-07 15:19:35,907 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-07 15:19:36,001 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-07 15:19:36,723 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 15:19:36,731 INFO L189 MainTranslator]: Completed pre-run [2018-11-07 15:19:37,012 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-07 15:19:37,036 INFO L193 MainTranslator]: Completed translation [2018-11-07 15:19:37,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:37 WrapperNode [2018-11-07 15:19:37,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-07 15:19:37,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-07 15:19:37,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-07 15:19:37,038 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-07 15:19:37,049 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:37" (1/1) ... [2018-11-07 15:19:37,257 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:37" (1/1) ... [2018-11-07 15:19:37,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-07 15:19:37,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-07 15:19:37,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-07 15:19:37,272 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-07 15:19:37,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:37" (1/1) ... [2018-11-07 15:19:37,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:37" (1/1) ... [2018-11-07 15:19:37,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:37" (1/1) ... [2018-11-07 15:19:37,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:37" (1/1) ... [2018-11-07 15:19:37,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:37" (1/1) ... [2018-11-07 15:19:37,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:37" (1/1) ... [2018-11-07 15:19:37,422 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:37" (1/1) ... [2018-11-07 15:19:37,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-07 15:19:37,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-07 15:19:37,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-07 15:19:37,439 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-07 15:19:37,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:37" (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 [2018-11-07 15:19:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2018-11-07 15:19:37,512 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-07 15:19:37,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-07 15:19:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-11-07 15:19:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-11-07 15:19:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-11-07 15:19:37,513 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-11-07 15:19:37,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-07 15:19:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-07 15:19:37,514 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-07 15:19:37,514 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-07 15:19:43,553 INFO L276 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-07 15:19:43,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:19:43 BoogieIcfgContainer [2018-11-07 15:19:43,554 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-07 15:19:43,556 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-07 15:19:43,556 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-07 15:19:43,560 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-07 15:19:43,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 03:19:35" (1/3) ... [2018-11-07 15:19:43,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20266442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:19:43, skipping insertion in model container [2018-11-07 15:19:43,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 03:19:37" (2/3) ... [2018-11-07 15:19:43,561 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20266442 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 03:19:43, skipping insertion in model container [2018-11-07 15:19:43,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 03:19:43" (3/3) ... [2018-11-07 15:19:43,563 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label19_true-unreach-call.c [2018-11-07 15:19:43,574 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-07 15:19:43,583 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-07 15:19:43,599 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-07 15:19:43,642 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-07 15:19:43,643 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-07 15:19:43,643 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-07 15:19:43,643 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-07 15:19:43,643 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-07 15:19:43,644 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-07 15:19:43,644 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-07 15:19:43,644 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-07 15:19:43,677 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-11-07 15:19:43,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2018-11-07 15:19:43,687 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 15:19:43,688 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 15:19:43,691 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 15:19:43,697 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 15:19:43,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1096400812, now seen corresponding path program 1 times [2018-11-07 15:19:43,701 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 15:19:43,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:19:43,760 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 15:19:43,760 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:19:43,760 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 15:19:43,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 15:19:44,230 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 15:19:44,233 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 15:19:44,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 15:19:44,234 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 15:19:44,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 15:19:44,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 15:19:44,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 15:19:44,260 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 4 states. [2018-11-07 15:19:49,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 15:19:49,512 INFO L93 Difference]: Finished difference Result 1513 states and 2838 transitions. [2018-11-07 15:19:49,512 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 15:19:49,514 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 50 [2018-11-07 15:19:49,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 15:19:49,544 INFO L225 Difference]: With dead ends: 1513 [2018-11-07 15:19:49,545 INFO L226 Difference]: Without dead ends: 1097 [2018-11-07 15:19:49,557 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 [2018-11-07 15:19:49,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2018-11-07 15:19:49,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 744. [2018-11-07 15:19:49,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-11-07 15:19:49,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1357 transitions. [2018-11-07 15:19:49,729 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1357 transitions. Word has length 50 [2018-11-07 15:19:49,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 15:19:49,730 INFO L480 AbstractCegarLoop]: Abstraction has 744 states and 1357 transitions. [2018-11-07 15:19:49,731 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 15:19:49,732 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1357 transitions. [2018-11-07 15:19:49,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2018-11-07 15:19:49,744 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 15:19:49,745 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 15:19:49,745 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 15:19:49,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 15:19:49,746 INFO L82 PathProgramCache]: Analyzing trace with hash -214706174, now seen corresponding path program 1 times [2018-11-07 15:19:49,746 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 15:19:49,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:19:49,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 15:19:49,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:19:49,750 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 15:19:49,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 15:19:50,133 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 15:19:50,493 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 15:19:50,494 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 15:19:50,494 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-07 15:19:50,494 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 15:19:50,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-07 15:19:50,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-07 15:19:50,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-11-07 15:19:50,499 INFO L87 Difference]: Start difference. First operand 744 states and 1357 transitions. Second operand 5 states. [2018-11-07 15:19:55,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 15:19:55,698 INFO L93 Difference]: Finished difference Result 2196 states and 4092 transitions. [2018-11-07 15:19:55,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 15:19:55,708 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 120 [2018-11-07 15:19:55,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 15:19:55,724 INFO L225 Difference]: With dead ends: 2196 [2018-11-07 15:19:55,724 INFO L226 Difference]: Without dead ends: 1458 [2018-11-07 15:19:55,728 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-11-07 15:19:55,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2018-11-07 15:19:55,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1438. [2018-11-07 15:19:55,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1438 states. [2018-11-07 15:19:55,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1438 states to 1438 states and 2551 transitions. [2018-11-07 15:19:55,801 INFO L78 Accepts]: Start accepts. Automaton has 1438 states and 2551 transitions. Word has length 120 [2018-11-07 15:19:55,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 15:19:55,801 INFO L480 AbstractCegarLoop]: Abstraction has 1438 states and 2551 transitions. [2018-11-07 15:19:55,802 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-07 15:19:55,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1438 states and 2551 transitions. [2018-11-07 15:19:55,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2018-11-07 15:19:55,809 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 15:19:55,809 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 15:19:55,810 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 15:19:55,810 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 15:19:55,810 INFO L82 PathProgramCache]: Analyzing trace with hash 668921751, now seen corresponding path program 1 times [2018-11-07 15:19:55,811 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 15:19:55,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:19:55,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 15:19:55,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:19:55,812 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 15:19:55,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 15:19:56,092 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 15:19:56,228 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 15:19:56,228 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 15:19:56,228 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 15:19:56,228 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 15:19:56,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 15:19:56,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 15:19:56,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 15:19:56,230 INFO L87 Difference]: Start difference. First operand 1438 states and 2551 transitions. Second operand 6 states. [2018-11-07 15:20:00,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 15:20:00,920 INFO L93 Difference]: Finished difference Result 4237 states and 7540 transitions. [2018-11-07 15:20:00,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 15:20:00,921 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2018-11-07 15:20:00,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 15:20:00,939 INFO L225 Difference]: With dead ends: 4237 [2018-11-07 15:20:00,939 INFO L226 Difference]: Without dead ends: 2805 [2018-11-07 15:20:00,950 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 15:20:00,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2805 states. [2018-11-07 15:20:01,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2805 to 2785. [2018-11-07 15:20:01,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2785 states. [2018-11-07 15:20:01,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2785 states to 2785 states and 4352 transitions. [2018-11-07 15:20:01,032 INFO L78 Accepts]: Start accepts. Automaton has 2785 states and 4352 transitions. Word has length 123 [2018-11-07 15:20:01,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 15:20:01,032 INFO L480 AbstractCegarLoop]: Abstraction has 2785 states and 4352 transitions. [2018-11-07 15:20:01,032 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 15:20:01,034 INFO L276 IsEmpty]: Start isEmpty. Operand 2785 states and 4352 transitions. [2018-11-07 15:20:01,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2018-11-07 15:20:01,036 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 15:20:01,036 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 15:20:01,037 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 15:20:01,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 15:20:01,037 INFO L82 PathProgramCache]: Analyzing trace with hash -575505094, now seen corresponding path program 1 times [2018-11-07 15:20:01,037 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 15:20:01,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:20:01,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 15:20:01,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:20:01,043 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 15:20:01,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 15:20:01,274 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 15:20:01,275 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 15:20:01,275 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 15:20:01,275 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 15:20:01,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 15:20:01,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 15:20:01,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 15:20:01,277 INFO L87 Difference]: Start difference. First operand 2785 states and 4352 transitions. Second operand 6 states. [2018-11-07 15:20:05,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 15:20:05,394 INFO L93 Difference]: Finished difference Result 6952 states and 11048 transitions. [2018-11-07 15:20:05,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 15:20:05,395 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 124 [2018-11-07 15:20:05,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 15:20:05,418 INFO L225 Difference]: With dead ends: 6952 [2018-11-07 15:20:05,418 INFO L226 Difference]: Without dead ends: 4173 [2018-11-07 15:20:05,437 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 [2018-11-07 15:20:05,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4173 states. [2018-11-07 15:20:05,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4173 to 4153. [2018-11-07 15:20:05,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4153 states. [2018-11-07 15:20:05,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4153 states to 4153 states and 5896 transitions. [2018-11-07 15:20:05,554 INFO L78 Accepts]: Start accepts. Automaton has 4153 states and 5896 transitions. Word has length 124 [2018-11-07 15:20:05,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 15:20:05,555 INFO L480 AbstractCegarLoop]: Abstraction has 4153 states and 5896 transitions. [2018-11-07 15:20:05,555 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 15:20:05,555 INFO L276 IsEmpty]: Start isEmpty. Operand 4153 states and 5896 transitions. [2018-11-07 15:20:05,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2018-11-07 15:20:05,556 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 15:20:05,557 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 15:20:05,557 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 15:20:05,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 15:20:05,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1067040591, now seen corresponding path program 1 times [2018-11-07 15:20:05,558 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 15:20:05,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:20:05,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 15:20:05,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:20:05,559 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 15:20:05,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 15:20:05,732 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 15:20:05,733 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 15:20:05,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 15:20:05,733 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 15:20:05,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 15:20:05,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 15:20:05,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 15:20:05,734 INFO L87 Difference]: Start difference. First operand 4153 states and 5896 transitions. Second operand 6 states. [2018-11-07 15:20:10,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 15:20:10,144 INFO L93 Difference]: Finished difference Result 11374 states and 16767 transitions. [2018-11-07 15:20:10,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 15:20:10,145 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 127 [2018-11-07 15:20:10,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 15:20:10,186 INFO L225 Difference]: With dead ends: 11374 [2018-11-07 15:20:10,186 INFO L226 Difference]: Without dead ends: 7227 [2018-11-07 15:20:10,218 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 [2018-11-07 15:20:10,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7227 states. [2018-11-07 15:20:10,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7227 to 7152. [2018-11-07 15:20:10,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7152 states. [2018-11-07 15:20:10,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7152 states to 7152 states and 9826 transitions. [2018-11-07 15:20:10,412 INFO L78 Accepts]: Start accepts. Automaton has 7152 states and 9826 transitions. Word has length 127 [2018-11-07 15:20:10,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 15:20:10,413 INFO L480 AbstractCegarLoop]: Abstraction has 7152 states and 9826 transitions. [2018-11-07 15:20:10,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 15:20:10,413 INFO L276 IsEmpty]: Start isEmpty. Operand 7152 states and 9826 transitions. [2018-11-07 15:20:10,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2018-11-07 15:20:10,419 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 15:20:10,419 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 15:20:10,419 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 15:20:10,420 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 15:20:10,420 INFO L82 PathProgramCache]: Analyzing trace with hash -1217167681, now seen corresponding path program 1 times [2018-11-07 15:20:10,420 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 15:20:10,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:20:10,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 15:20:10,421 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:20:10,421 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 15:20:10,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 15:20:10,698 WARN L179 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-11-07 15:20:10,945 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 15:20:10,945 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 15:20:10,945 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-07 15:20:10,945 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 15:20:10,946 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-07 15:20:10,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-07 15:20:10,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-07 15:20:10,947 INFO L87 Difference]: Start difference. First operand 7152 states and 9826 transitions. Second operand 6 states. [2018-11-07 15:20:13,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 15:20:13,654 INFO L93 Difference]: Finished difference Result 17771 states and 25546 transitions. [2018-11-07 15:20:13,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-07 15:20:13,655 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 135 [2018-11-07 15:20:13,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 15:20:13,718 INFO L225 Difference]: With dead ends: 17771 [2018-11-07 15:20:13,718 INFO L226 Difference]: Without dead ends: 10625 [2018-11-07 15:20:13,748 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-11-07 15:20:13,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10625 states. [2018-11-07 15:20:14,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10625 to 10585. [2018-11-07 15:20:14,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10585 states. [2018-11-07 15:20:14,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10585 states to 10585 states and 13819 transitions. [2018-11-07 15:20:14,074 INFO L78 Accepts]: Start accepts. Automaton has 10585 states and 13819 transitions. Word has length 135 [2018-11-07 15:20:14,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 15:20:14,074 INFO L480 AbstractCegarLoop]: Abstraction has 10585 states and 13819 transitions. [2018-11-07 15:20:14,074 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-07 15:20:14,075 INFO L276 IsEmpty]: Start isEmpty. Operand 10585 states and 13819 transitions. [2018-11-07 15:20:14,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-11-07 15:20:14,078 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 15:20:14,079 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 15:20:14,079 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 15:20:14,079 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 15:20:14,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1713053514, now seen corresponding path program 1 times [2018-11-07 15:20:14,080 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 15:20:14,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:20:14,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 15:20:14,084 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:20:14,084 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 15:20:14,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 15:20:14,317 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 43 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-07 15:20:14,317 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-07 15:20:14,317 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-07 15:20:14,317 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 15:20:14,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-07 15:20:14,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-07 15:20:14,318 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-07 15:20:14,319 INFO L87 Difference]: Start difference. First operand 10585 states and 13819 transitions. Second operand 4 states. [2018-11-07 15:20:17,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-07 15:20:17,477 INFO L93 Difference]: Finished difference Result 22178 states and 28983 transitions. [2018-11-07 15:20:17,477 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-07 15:20:17,478 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2018-11-07 15:20:17,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-07 15:20:17,509 INFO L225 Difference]: With dead ends: 22178 [2018-11-07 15:20:17,509 INFO L226 Difference]: Without dead ends: 8917 [2018-11-07 15:20:17,554 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 [2018-11-07 15:20:17,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8917 states. [2018-11-07 15:20:17,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8917 to 8917. [2018-11-07 15:20:17,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8917 states. [2018-11-07 15:20:17,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8917 states to 8917 states and 9927 transitions. [2018-11-07 15:20:17,744 INFO L78 Accepts]: Start accepts. Automaton has 8917 states and 9927 transitions. Word has length 142 [2018-11-07 15:20:17,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-07 15:20:17,745 INFO L480 AbstractCegarLoop]: Abstraction has 8917 states and 9927 transitions. [2018-11-07 15:20:17,745 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-07 15:20:17,745 INFO L276 IsEmpty]: Start isEmpty. Operand 8917 states and 9927 transitions. [2018-11-07 15:20:17,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2018-11-07 15:20:17,772 INFO L367 BasicCegarLoop]: Found error trace [2018-11-07 15:20:17,773 INFO L375 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-07 15:20:17,774 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-07 15:20:17,774 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 15:20:17,774 INFO L82 PathProgramCache]: Analyzing trace with hash -593629262, now seen corresponding path program 1 times [2018-11-07 15:20:17,774 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-07 15:20:17,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:20:17,775 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-07 15:20:17,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-07 15:20:17,776 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-07 15:20:17,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-07 15:20:18,680 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 248 proven. 115 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2018-11-07 15:20:18,681 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-07 15:20:18,681 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-07 15:20:18,682 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 599 with the following transitions: [2018-11-07 15:20:18,686 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [179], [180], [187], [195], [203], [211], [219], [227], [235], [243], [251], [259], [267], [275], [283], [291], [299], [307], [315], [323], [331], [339], [347], [355], [363], [371], [379], [387], [395], [403], [411], [419], [427], [435], [443], [451], [459], [467], [475], [479], [481], [484], [492], [500], [508], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [673], [677], [681], [685], [689], [693], [697], [701], [705], [709], [713], [717], [721], [725], [729], [733], [737], [741], [745], [749], [753], [757], [761], [765], [769], [773], [777], [781], [785], [789], [793], [797], [801], [805], [809], [813], [817], [821], [825], [829], [833], [837], [841], [845], [849], [853], [856], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [912], [913], [917], [921], [925], [929], [933], [937], [941], [945], [949], [953], [957], [961], [965], [969], [973], [977], [981], [985], [989], [993], [997], [1001], [1005], [1009], [1013], [1017], [1021], [1025], [1029], [1033], [1037], [1041], [1045], [1049], [1053], [1057], [1061], [1065], [1069], [1073], [1077], [1081], [1085], [1089], [1093], [1097], [1101], [1105], [1109], [1113], [1117], [1121], [1125], [1129], [1133], [1137], [1141], [1145], [1149], [1153], [1157], [1161], [1165], [1169], [1173], [1177], [1181], [1185], [1189], [1193], [1197], [1201], [1205], [1209], [1213], [1217], [1221], [1225], [1229], [1233], [1237], [1241], [1245], [1249], [1253], [1257], [1261], [1265], [1269], [1273], [1277], [1281], [1285], [1289], [1293], [1297], [1301], [1305], [1309], [1313], [1317], [1321], [1325], [1329], [1333], [1337], [1341], [1345], [1349], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1393], [1397], [1401], [1405], [1409], [1413], [1417], [1421], [1425], [1429], [1433], [1437], [1441], [1445], [1449], [1453], [1457], [1461], [1465], [1469], [1473], [1477], [1481], [1485], [1489], [1493], [1497], [1501], [1505], [1509], [1513], [1517], [1521], [1525], [1529], [1533], [1537], [1541], [1545], [1549], [1551], [1552], [1556], [1560], [1566], [1570], [1572], [1577], [1578], [1579], [1580], [1581], [1583], [1584] [2018-11-07 15:20:18,747 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-11-07 15:20:18,747 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-07 15:20:20,445 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-07 15:20:20,447 INFO L272 AbstractInterpreter]: Visited 305 different actions 305 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-11-07 15:20:20,491 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-07 15:20:20,492 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-07 15:20:22,386 INFO L227 lantSequenceWeakener]: Weakened 567 states. On average, predicates are now at 77.57% of their original sizes. [2018-11-07 15:20:22,386 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-07 15:20:26,574 INFO L415 sIntCurrentIteration]: We unified 597 AI predicates to 597 [2018-11-07 15:20:26,575 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-07 15:20:26,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-07 15:20:26,576 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [6] total 19 [2018-11-07 15:20:26,577 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-07 15:20:26,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-07 15:20:26,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-07 15:20:26,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2018-11-07 15:20:26,579 INFO L87 Difference]: Start difference. First operand 8917 states and 9927 transitions. Second operand 15 states. [2018-11-07 15:20:33,446 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. Received shutdown request... [2018-11-07 15:23:44,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-07 15:23:44,705 WARN L549 AbstractCegarLoop]: Verification canceled [2018-11-07 15:23:44,712 WARN L205 ceAbstractionStarter]: Timeout [2018-11-07 15:23:44,712 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 03:23:44 BoogieIcfgContainer [2018-11-07 15:23:44,712 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-07 15:23:44,713 INFO L168 Benchmark]: Toolchain (without parser) took 248829.33 ms. Allocated memory was 1.5 GB in the beginning and 4.1 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-11-07 15:23:44,715 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 15:23:44,715 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1150.83 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-11-07 15:23:44,716 INFO L168 Benchmark]: Boogie Procedure Inliner took 232.22 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 710.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -836.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2018-11-07 15:23:44,717 INFO L168 Benchmark]: Boogie Preprocessor took 166.51 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-11-07 15:23:44,718 INFO L168 Benchmark]: RCFGBuilder took 6115.55 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 254.0 MB). Peak memory consumption was 254.0 MB. Max. memory is 7.1 GB. [2018-11-07 15:23:44,718 INFO L168 Benchmark]: TraceAbstraction took 241156.87 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 2.5 GB in the end (delta: -583.0 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-11-07 15:23:44,724 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1150.83 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 232.22 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 710.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -836.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 166.51 ms. Allocated memory is still 2.2 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 6115.55 ms. Allocated memory is still 2.2 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 254.0 MB). Peak memory consumption was 254.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 241156.87 ms. Allocated memory was 2.2 GB in the beginning and 4.1 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 2.5 GB in the end (delta: -583.0 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 136]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 136). Cancelled while BasicCegarLoop was constructing difference of abstraction (8917states) and FLOYD_HOARE automaton (currently 15 states, 15 states before enhancement),while ReachableStatesComputation was computing reachable states (10765 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 241.0s OverallTime, 8 OverallIterations, 4 TraceHistogramMax, 228.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 884 SDtfs, 12345 SDslu, 793 SDs, 0 SdLazy, 14989 SolverSat, 4035 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 205.3s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 666 GetRequests, 418 SyntacticMatches, 188 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10585occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 1.8s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9985892666797189 AbsIntWeakeningRatio, 0.06030150753768844 AbsIntAvgWeakeningVarsNumRemoved, 0.20770519262981574 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 528 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 1419 NumberOfCodeBlocks, 1419 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1411 ConstructedInterpolants, 0 QuantifiedInterpolants, 1169669 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 7 PerfectInterpolantSequences, 634/749 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown