java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label02_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-24 21:54:47,414 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-24 21:54:47,416 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-24 21:54:47,429 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-24 21:54:47,430 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-24 21:54:47,431 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-24 21:54:47,432 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-24 21:54:47,434 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-24 21:54:47,435 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-24 21:54:47,436 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-24 21:54:47,437 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-24 21:54:47,437 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-24 21:54:47,438 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-24 21:54:47,439 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-24 21:54:47,440 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-24 21:54:47,441 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-24 21:54:47,442 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-24 21:54:47,444 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-24 21:54:47,446 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-24 21:54:47,447 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-24 21:54:47,448 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-24 21:54:47,449 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-24 21:54:47,452 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-24 21:54:47,452 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-24 21:54:47,452 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-24 21:54:47,453 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-24 21:54:47,454 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-24 21:54:47,455 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-24 21:54:47,456 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-24 21:54:47,457 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-24 21:54:47,457 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-24 21:54:47,458 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-24 21:54:47,458 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-24 21:54:47,459 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-24 21:54:47,460 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-24 21:54:47,460 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-24 21:54:47,461 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-24 21:54:47,475 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-24 21:54:47,476 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-24 21:54:47,477 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-24 21:54:47,477 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-24 21:54:47,477 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-24 21:54:47,477 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-24 21:54:47,477 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-24 21:54:47,478 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-24 21:54:47,478 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-24 21:54:47,478 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-24 21:54:47,478 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-24 21:54:47,478 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-24 21:54:47,479 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-24 21:54:47,479 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-24 21:54:47,479 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-24 21:54:47,480 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-24 21:54:47,480 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-24 21:54:47,480 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-24 21:54:47,480 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-24 21:54:47,481 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-24 21:54:47,482 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-24 21:54:47,482 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-24 21:54:47,482 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-24 21:54:47,482 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-24 21:54:47,482 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:54:47,483 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-24 21:54:47,483 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-24 21:54:47,483 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-24 21:54:47,483 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-24 21:54:47,483 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-24 21:54:47,483 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-24 21:54:47,484 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-24 21:54:47,485 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-24 21:54:47,485 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-24 21:54:47,542 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-24 21:54:47,555 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-24 21:54:47,558 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-24 21:54:47,560 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-24 21:54:47,560 INFO L276 PluginConnector]: CDTParser initialized [2018-10-24 21:54:47,561 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label02_true-unreach-call.c [2018-10-24 21:54:47,619 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b322cf347/67b060e09a284a8cb8fba66117398335/FLAG701f1d44a [2018-10-24 21:54:48,243 INFO L298 CDTParser]: Found 1 translation units. [2018-10-24 21:54:48,244 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label02_true-unreach-call.c [2018-10-24 21:54:48,268 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b322cf347/67b060e09a284a8cb8fba66117398335/FLAG701f1d44a [2018-10-24 21:54:48,286 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b322cf347/67b060e09a284a8cb8fba66117398335 [2018-10-24 21:54:48,298 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-24 21:54:48,300 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-24 21:54:48,301 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-24 21:54:48,301 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-24 21:54:48,305 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-24 21:54:48,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:54:48" (1/1) ... [2018-10-24 21:54:48,310 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dfcbfb5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:48, skipping insertion in model container [2018-10-24 21:54:48,311 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 09:54:48" (1/1) ... [2018-10-24 21:54:48,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-24 21:54:48,431 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-24 21:54:49,157 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:54:49,162 INFO L189 MainTranslator]: Completed pre-run [2018-10-24 21:54:49,447 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-24 21:54:49,470 INFO L193 MainTranslator]: Completed translation [2018-10-24 21:54:49,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:49 WrapperNode [2018-10-24 21:54:49,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-24 21:54:49,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-24 21:54:49,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-24 21:54:49,472 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-24 21:54:49,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:49" (1/1) ... [2018-10-24 21:54:49,529 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:49" (1/1) ... [2018-10-24 21:54:49,789 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-24 21:54:49,790 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-24 21:54:49,790 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-24 21:54:49,790 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-24 21:54:49,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:49" (1/1) ... [2018-10-24 21:54:49,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:49" (1/1) ... [2018-10-24 21:54:49,812 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:49" (1/1) ... [2018-10-24 21:54:49,813 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:49" (1/1) ... [2018-10-24 21:54:49,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:49" (1/1) ... [2018-10-24 21:54:49,883 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:49" (1/1) ... [2018-10-24 21:54:49,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:49" (1/1) ... [2018-10-24 21:54:49,923 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-24 21:54:49,923 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-24 21:54:49,923 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-24 21:54:49,924 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-24 21:54:49,924 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:49" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-24 21:54:49,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-24 21:54:49,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-24 21:54:49,995 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-24 21:54:49,995 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-24 21:54:49,995 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-24 21:54:49,996 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-24 21:54:49,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-24 21:54:49,996 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-24 21:54:49,996 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-24 21:54:49,997 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-24 21:54:56,496 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-24 21:54:56,497 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:54:56 BoogieIcfgContainer [2018-10-24 21:54:56,498 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-24 21:54:56,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-24 21:54:56,499 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-24 21:54:56,503 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-24 21:54:56,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 09:54:48" (1/3) ... [2018-10-24 21:54:56,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca990a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:54:56, skipping insertion in model container [2018-10-24 21:54:56,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 09:54:49" (2/3) ... [2018-10-24 21:54:56,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca990a8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 09:54:56, skipping insertion in model container [2018-10-24 21:54:56,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 09:54:56" (3/3) ... [2018-10-24 21:54:56,507 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label02_true-unreach-call.c [2018-10-24 21:54:56,518 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-24 21:54:56,528 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-24 21:54:56,549 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-24 21:54:56,612 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-24 21:54:56,612 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-24 21:54:56,612 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-24 21:54:56,612 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-24 21:54:56,613 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-24 21:54:56,613 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-24 21:54:56,613 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-24 21:54:56,613 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-24 21:54:56,665 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-10-24 21:54:56,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-10-24 21:54:56,680 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:54:56,682 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:54:56,685 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:54:56,692 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:54:56,692 INFO L82 PathProgramCache]: Analyzing trace with hash -730804356, now seen corresponding path program 1 times [2018-10-24 21:54:56,695 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:54:56,755 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:54:56,755 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:54:56,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:54:56,756 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:54:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:54:57,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:54:57,204 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:54:57,205 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:54:57,205 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:54:57,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:54:57,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:54:57,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:54:57,234 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 4 states. [2018-10-24 21:55:05,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:55:05,116 INFO L93 Difference]: Finished difference Result 1513 states and 2838 transitions. [2018-10-24 21:55:05,118 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:55:05,119 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 68 [2018-10-24 21:55:05,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:55:05,146 INFO L225 Difference]: With dead ends: 1513 [2018-10-24 21:55:05,146 INFO L226 Difference]: Without dead ends: 1097 [2018-10-24 21:55:05,158 INFO L605 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 [2018-10-24 21:55:05,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1097 states. [2018-10-24 21:55:05,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1097 to 1097. [2018-10-24 21:55:05,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1097 states. [2018-10-24 21:55:05,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1097 states to 1097 states and 1954 transitions. [2018-10-24 21:55:05,285 INFO L78 Accepts]: Start accepts. Automaton has 1097 states and 1954 transitions. Word has length 68 [2018-10-24 21:55:05,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:55:05,286 INFO L481 AbstractCegarLoop]: Abstraction has 1097 states and 1954 transitions. [2018-10-24 21:55:05,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:55:05,287 INFO L276 IsEmpty]: Start isEmpty. Operand 1097 states and 1954 transitions. [2018-10-24 21:55:05,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2018-10-24 21:55:05,298 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:55:05,298 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:55:05,298 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:55:05,299 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:55:05,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1744489539, now seen corresponding path program 1 times [2018-10-24 21:55:05,299 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:55:05,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:55:05,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:55:05,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:55:05,301 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:55:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:55:05,566 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:55:05,567 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:55:05,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:55:05,567 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:55:05,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:55:05,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:55:05,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:55:05,571 INFO L87 Difference]: Start difference. First operand 1097 states and 1954 transitions. Second operand 6 states. [2018-10-24 21:55:10,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:55:10,996 INFO L93 Difference]: Finished difference Result 3259 states and 5952 transitions. [2018-10-24 21:55:11,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:55:11,009 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 139 [2018-10-24 21:55:11,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:55:11,033 INFO L225 Difference]: With dead ends: 3259 [2018-10-24 21:55:11,034 INFO L226 Difference]: Without dead ends: 2168 [2018-10-24 21:55:11,040 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 21:55:11,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2168 states. [2018-10-24 21:55:11,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2168 to 2142. [2018-10-24 21:55:11,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2142 states. [2018-10-24 21:55:11,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2142 states to 2142 states and 3739 transitions. [2018-10-24 21:55:11,163 INFO L78 Accepts]: Start accepts. Automaton has 2142 states and 3739 transitions. Word has length 139 [2018-10-24 21:55:11,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:55:11,163 INFO L481 AbstractCegarLoop]: Abstraction has 2142 states and 3739 transitions. [2018-10-24 21:55:11,164 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:55:11,164 INFO L276 IsEmpty]: Start isEmpty. Operand 2142 states and 3739 transitions. [2018-10-24 21:55:11,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2018-10-24 21:55:11,176 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:55:11,176 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, 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] [2018-10-24 21:55:11,176 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:55:11,177 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:55:11,177 INFO L82 PathProgramCache]: Analyzing trace with hash -990959541, now seen corresponding path program 1 times [2018-10-24 21:55:11,177 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:55:11,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:55:11,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:55:11,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:55:11,179 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:55:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:55:11,624 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:55:11,625 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:55:11,626 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:55:11,626 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:55:11,627 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:55:11,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:55:11,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:55:11,630 INFO L87 Difference]: Start difference. First operand 2142 states and 3739 transitions. Second operand 6 states. [2018-10-24 21:55:17,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:55:17,141 INFO L93 Difference]: Finished difference Result 7053 states and 12688 transitions. [2018-10-24 21:55:17,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:55:17,141 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2018-10-24 21:55:17,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:55:17,181 INFO L225 Difference]: With dead ends: 7053 [2018-10-24 21:55:17,181 INFO L226 Difference]: Without dead ends: 4917 [2018-10-24 21:55:17,203 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 21:55:17,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4917 states. [2018-10-24 21:55:17,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4917 to 4877. [2018-10-24 21:55:17,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4877 states. [2018-10-24 21:55:17,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4877 states to 4877 states and 7891 transitions. [2018-10-24 21:55:17,379 INFO L78 Accepts]: Start accepts. Automaton has 4877 states and 7891 transitions. Word has length 167 [2018-10-24 21:55:17,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:55:17,380 INFO L481 AbstractCegarLoop]: Abstraction has 4877 states and 7891 transitions. [2018-10-24 21:55:17,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:55:17,380 INFO L276 IsEmpty]: Start isEmpty. Operand 4877 states and 7891 transitions. [2018-10-24 21:55:17,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2018-10-24 21:55:17,386 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:55:17,386 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:55:17,387 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:55:17,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:55:17,387 INFO L82 PathProgramCache]: Analyzing trace with hash -964551673, now seen corresponding path program 1 times [2018-10-24 21:55:17,387 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:55:17,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:55:17,388 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:55:17,388 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:55:17,389 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:55:17,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:55:17,729 WARN L179 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:55:18,026 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:55:18,027 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:55:18,027 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:55:18,027 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:55:18,027 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:55:18,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:55:18,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:55:18,028 INFO L87 Difference]: Start difference. First operand 4877 states and 7891 transitions. Second operand 6 states. [2018-10-24 21:55:21,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:55:21,710 INFO L93 Difference]: Finished difference Result 11909 states and 19972 transitions. [2018-10-24 21:55:21,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:55:21,713 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 185 [2018-10-24 21:55:21,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:55:21,764 INFO L225 Difference]: With dead ends: 11909 [2018-10-24 21:55:21,765 INFO L226 Difference]: Without dead ends: 7038 [2018-10-24 21:55:21,793 INFO L605 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 [2018-10-24 21:55:21,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7038 states. [2018-10-24 21:55:22,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7038 to 6977. [2018-10-24 21:55:22,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6977 states. [2018-10-24 21:55:22,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6977 states to 6977 states and 9942 transitions. [2018-10-24 21:55:22,029 INFO L78 Accepts]: Start accepts. Automaton has 6977 states and 9942 transitions. Word has length 185 [2018-10-24 21:55:22,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:55:22,030 INFO L481 AbstractCegarLoop]: Abstraction has 6977 states and 9942 transitions. [2018-10-24 21:55:22,030 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:55:22,030 INFO L276 IsEmpty]: Start isEmpty. Operand 6977 states and 9942 transitions. [2018-10-24 21:55:22,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2018-10-24 21:55:22,037 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:55:22,037 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:55:22,038 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:55:22,038 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:55:22,038 INFO L82 PathProgramCache]: Analyzing trace with hash -1679600594, now seen corresponding path program 1 times [2018-10-24 21:55:22,038 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:55:22,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:55:22,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:55:22,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:55:22,040 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:55:22,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:55:22,488 WARN L179 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-24 21:55:22,561 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-24 21:55:22,561 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:55:22,562 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-24 21:55:22,562 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:55:22,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-24 21:55:22,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-24 21:55:22,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-24 21:55:22,563 INFO L87 Difference]: Start difference. First operand 6977 states and 9942 transitions. Second operand 6 states. [2018-10-24 21:55:26,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:55:26,861 INFO L93 Difference]: Finished difference Result 17709 states and 25496 transitions. [2018-10-24 21:55:26,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-24 21:55:26,872 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 232 [2018-10-24 21:55:26,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:55:26,928 INFO L225 Difference]: With dead ends: 17709 [2018-10-24 21:55:26,928 INFO L226 Difference]: Without dead ends: 10738 [2018-10-24 21:55:26,969 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-24 21:55:26,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10738 states. [2018-10-24 21:55:27,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10738 to 10702. [2018-10-24 21:55:27,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10702 states. [2018-10-24 21:55:27,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10702 states to 10702 states and 14504 transitions. [2018-10-24 21:55:27,202 INFO L78 Accepts]: Start accepts. Automaton has 10702 states and 14504 transitions. Word has length 232 [2018-10-24 21:55:27,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:55:27,203 INFO L481 AbstractCegarLoop]: Abstraction has 10702 states and 14504 transitions. [2018-10-24 21:55:27,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-24 21:55:27,203 INFO L276 IsEmpty]: Start isEmpty. Operand 10702 states and 14504 transitions. [2018-10-24 21:55:27,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2018-10-24 21:55:27,209 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:55:27,209 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2018-10-24 21:55:27,210 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:55:27,210 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:55:27,210 INFO L82 PathProgramCache]: Analyzing trace with hash 1670114349, now seen corresponding path program 1 times [2018-10-24 21:55:27,210 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:55:27,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:55:27,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:55:27,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:55:27,212 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:55:27,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:55:27,521 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2018-10-24 21:55:27,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-24 21:55:27,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-24 21:55:27,523 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:55:27,524 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-24 21:55:27,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-24 21:55:27,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-24 21:55:27,524 INFO L87 Difference]: Start difference. First operand 10702 states and 14504 transitions. Second operand 4 states. [2018-10-24 21:55:31,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-24 21:55:31,440 INFO L93 Difference]: Finished difference Result 27183 states and 37579 transitions. [2018-10-24 21:55:31,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-24 21:55:31,441 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 269 [2018-10-24 21:55:31,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-24 21:55:31,506 INFO L225 Difference]: With dead ends: 27183 [2018-10-24 21:55:31,506 INFO L226 Difference]: Without dead ends: 16487 [2018-10-24 21:55:31,545 INFO L605 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 [2018-10-24 21:55:31,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16487 states. [2018-10-24 21:55:31,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16487 to 16487. [2018-10-24 21:55:31,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16487 states. [2018-10-24 21:55:31,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16487 states to 16487 states and 21165 transitions. [2018-10-24 21:55:31,907 INFO L78 Accepts]: Start accepts. Automaton has 16487 states and 21165 transitions. Word has length 269 [2018-10-24 21:55:31,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-24 21:55:31,908 INFO L481 AbstractCegarLoop]: Abstraction has 16487 states and 21165 transitions. [2018-10-24 21:55:31,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-24 21:55:31,908 INFO L276 IsEmpty]: Start isEmpty. Operand 16487 states and 21165 transitions. [2018-10-24 21:55:31,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 493 [2018-10-24 21:55:31,969 INFO L367 BasicCegarLoop]: Found error trace [2018-10-24 21:55:31,970 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-24 21:55:31,970 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-24 21:55:31,970 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:55:31,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1403080672, now seen corresponding path program 1 times [2018-10-24 21:55:31,975 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-24 21:55:31,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:55:31,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-24 21:55:31,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-24 21:55:31,976 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-24 21:55:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-24 21:55:32,857 WARN L179 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 17 [2018-10-24 21:55:33,442 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 125 refuted. 0 times theorem prover too weak. 181 trivial. 0 not checked. [2018-10-24 21:55:33,443 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-24 21:55:33,443 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-24 21:55:33,444 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 493 with the following transitions: [2018-10-24 21:55:33,448 INFO L202 CegarAbsIntRunner]: [0], [1], [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], [483], [491], [499], [507], [515], [523], [531], [539], [547], [555], [563], [571], [579], [587], [595], [603], [611], [619], [623], [625], [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], [857], [861], [865], [869], [873], [877], [881], [885], [889], [893], [897], [901], [905], [909], [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], [1128], [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], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-24 21:55:33,559 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-24 21:55:33,559 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-24 21:55:38,760 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2018-10-24 21:56:02,815 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-24 21:56:02,817 INFO L272 AbstractInterpreter]: Visited 248 different actions 738 times. Merged at 7 different actions 16 times. Never widened. Found 3 fixpoints after 2 different actions. Largest state had 24 variables. [2018-10-24 21:56:02,861 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-24 21:56:02,861 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-24 21:56:10,060 INFO L232 lantSequenceWeakener]: Weakened 18 states. On average, predicates are now at 82.83% of their original sizes. [2018-10-24 21:56:10,061 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-24 21:57:46,278 INFO L413 sIntCurrentIteration]: We have 491 unified AI predicates [2018-10-24 21:57:46,279 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-24 21:57:46,280 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-24 21:57:46,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [20] imperfect sequences [7] total 25 [2018-10-24 21:57:46,280 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-24 21:57:46,281 INFO L460 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-10-24 21:57:46,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-10-24 21:57:46,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2018-10-24 21:57:46,282 INFO L87 Difference]: Start difference. First operand 16487 states and 21165 transitions. Second operand 20 states. Received shutdown request... [2018-10-24 21:58:38,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-10-24 21:58:38,253 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-24 21:58:38,258 WARN L205 ceAbstractionStarter]: Timeout [2018-10-24 21:58:38,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 09:58:38 BoogieIcfgContainer [2018-10-24 21:58:38,258 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-24 21:58:38,259 INFO L168 Benchmark]: Toolchain (without parser) took 229960.43 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.1 GB). Free memory was 1.4 GB in the beginning and 2.9 GB in the end (delta: -1.4 GB). Peak memory consumption was 696.5 MB. Max. memory is 7.1 GB. [2018-10-24 21:58:38,260 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-24 21:58:38,261 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1170.19 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. [2018-10-24 21:58:38,262 INFO L168 Benchmark]: Boogie Procedure Inliner took 317.93 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 763.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -877.5 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. [2018-10-24 21:58:38,263 INFO L168 Benchmark]: Boogie Preprocessor took 132.94 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. [2018-10-24 21:58:38,263 INFO L168 Benchmark]: RCFGBuilder took 6574.64 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 264.4 MB). Peak memory consumption was 264.4 MB. Max. memory is 7.1 GB. [2018-10-24 21:58:38,264 INFO L168 Benchmark]: TraceAbstraction took 221759.66 ms. Allocated memory was 2.3 GB in the beginning and 3.7 GB in the end (delta: 1.4 GB). Free memory was 1.9 GB in the beginning and 2.9 GB in the end (delta: -913.8 MB). Peak memory consumption was 447.7 MB. Max. memory is 7.1 GB. [2018-10-24 21:58:38,269 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1170.19 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 317.93 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 763.9 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -877.5 MB). Peak memory consumption was 28.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.94 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6574.64 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 1.9 GB in the end (delta: 264.4 MB). Peak memory consumption was 264.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 221759.66 ms. Allocated memory was 2.3 GB in the beginning and 3.7 GB in the end (delta: 1.4 GB). Free memory was 1.9 GB in the beginning and 2.9 GB in the end (delta: -913.8 MB). Peak memory consumption was 447.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 190]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 190). Cancelled while BasicCegarLoop was constructing difference of abstraction (16487states) and FLOYD_HOARE automaton (currently 10 states, 20 states before enhancement),while ReachableStatesComputation was computing reachable states (423 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 221.6s OverallTime, 7 OverallIterations, 3 TraceHistogramMax, 83.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1097 SDtfs, 10060 SDslu, 617 SDs, 0 SdLazy, 12727 SolverSat, 4507 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 38.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 547 GetRequests, 376 SyntacticMatches, 116 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 565 ImplicationChecksByTransitivity, 96.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16487occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 29.4s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9975980696006375 AbsIntWeakeningRatio, 0.05295315682281059 AbsIntAvgWeakeningVarsNumRemoved, 397.43380855397146 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 163 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 1552 NumberOfCodeBlocks, 1552 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1545 ConstructedInterpolants, 0 QuantifiedInterpolants, 1540216 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 618/743 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown