java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem16_label09_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 08:18:42,382 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 08:18:42,384 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 08:18:42,399 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 08:18:42,399 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 08:18:42,401 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 08:18:42,402 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 08:18:42,404 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 08:18:42,406 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 08:18:42,407 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 08:18:42,408 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 08:18:42,408 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 08:18:42,409 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 08:18:42,410 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 08:18:42,411 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 08:18:42,412 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 08:18:42,413 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 08:18:42,415 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 08:18:42,417 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 08:18:42,419 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 08:18:42,420 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 08:18:42,421 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 08:18:42,424 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 08:18:42,425 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 08:18:42,425 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 08:18:42,426 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 08:18:42,427 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 08:18:42,428 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 08:18:42,429 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 08:18:42,430 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 08:18:42,430 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 08:18:42,431 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 08:18:42,431 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 08:18:42,431 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 08:18:42,432 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 08:18:42,433 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 08:18:42,434 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-27 08:18:42,458 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 08:18:42,459 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 08:18:42,460 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 08:18:42,461 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 08:18:42,461 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 08:18:42,461 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 08:18:42,461 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-27 08:18:42,462 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 08:18:42,462 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 08:18:42,462 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 08:18:42,462 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 08:18:42,462 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 08:18:42,463 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 08:18:42,463 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 08:18:42,464 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 08:18:42,464 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 08:18:42,464 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 08:18:42,466 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 08:18:42,466 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 08:18:42,466 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 08:18:42,466 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 08:18:42,466 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 08:18:42,467 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 08:18:42,467 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 08:18:42,467 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 08:18:42,467 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 08:18:42,468 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 08:18:42,468 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 08:18:42,469 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 08:18:42,469 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 08:18:42,469 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 08:18:42,469 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 08:18:42,469 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 08:18:42,469 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 08:18:42,470 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 08:18:42,470 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 08:18:42,536 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 08:18:42,552 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 08:18:42,557 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 08:18:42,559 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 08:18:42,559 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 08:18:42,560 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label09_true-unreach-call.c [2018-10-27 08:18:42,627 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/30d3e9a1a/3459105eada34de29241954c87931112/FLAGe681ad3dd [2018-10-27 08:18:43,310 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 08:18:43,311 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem16_label09_true-unreach-call.c [2018-10-27 08:18:43,335 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/30d3e9a1a/3459105eada34de29241954c87931112/FLAGe681ad3dd [2018-10-27 08:18:43,353 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/30d3e9a1a/3459105eada34de29241954c87931112 [2018-10-27 08:18:43,365 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 08:18:43,368 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 08:18:43,372 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 08:18:43,372 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 08:18:43,376 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 08:18:43,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:18:43" (1/1) ... [2018-10-27 08:18:43,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43ac7e1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:43, skipping insertion in model container [2018-10-27 08:18:43,383 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 08:18:43" (1/1) ... [2018-10-27 08:18:43,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 08:18:43,491 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 08:18:44,391 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 08:18:44,398 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 08:18:44,654 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 08:18:44,689 INFO L193 MainTranslator]: Completed translation [2018-10-27 08:18:44,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:44 WrapperNode [2018-10-27 08:18:44,690 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 08:18:44,691 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 08:18:44,691 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 08:18:44,691 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 08:18:44,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:44" (1/1) ... [2018-10-27 08:18:44,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:44" (1/1) ... [2018-10-27 08:18:45,012 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 08:18:45,013 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 08:18:45,013 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 08:18:45,013 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 08:18:45,024 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:44" (1/1) ... [2018-10-27 08:18:45,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:44" (1/1) ... [2018-10-27 08:18:45,034 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:44" (1/1) ... [2018-10-27 08:18:45,034 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:44" (1/1) ... [2018-10-27 08:18:45,087 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:44" (1/1) ... [2018-10-27 08:18:45,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:44" (1/1) ... [2018-10-27 08:18:45,128 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:44" (1/1) ... [2018-10-27 08:18:45,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 08:18:45,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 08:18:45,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 08:18:45,146 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 08:18:45,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:44" (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 [2018-10-27 08:18:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 08:18:45,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 08:18:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-27 08:18:45,219 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-27 08:18:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 08:18:45,219 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 08:18:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 08:18:45,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 08:18:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 08:18:45,221 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 08:18:51,975 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 08:18:51,975 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:18:51 BoogieIcfgContainer [2018-10-27 08:18:51,976 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 08:18:51,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 08:18:51,978 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 08:18:51,981 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 08:18:51,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 08:18:43" (1/3) ... [2018-10-27 08:18:51,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2645c73e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:18:51, skipping insertion in model container [2018-10-27 08:18:51,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 08:18:44" (2/3) ... [2018-10-27 08:18:51,983 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2645c73e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 08:18:51, skipping insertion in model container [2018-10-27 08:18:51,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 08:18:51" (3/3) ... [2018-10-27 08:18:51,985 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem16_label09_true-unreach-call.c [2018-10-27 08:18:51,997 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 08:18:52,007 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 08:18:52,026 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 08:18:52,070 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 08:18:52,070 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 08:18:52,071 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 08:18:52,071 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 08:18:52,071 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 08:18:52,071 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 08:18:52,071 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 08:18:52,072 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 08:18:52,121 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states. [2018-10-27 08:18:52,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2018-10-27 08:18:52,130 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:18:52,131 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] [2018-10-27 08:18:52,133 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:18:52,140 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:18:52,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1905211356, now seen corresponding path program 1 times [2018-10-27 08:18:52,143 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:18:52,202 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:18:52,202 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:18:52,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:18:52,203 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:18:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:18:52,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:18:52,700 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:18:52,700 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 08:18:52,700 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:18:52,706 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 08:18:52,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 08:18:52,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 08:18:52,726 INFO L87 Difference]: Start difference. First operand 410 states. Second operand 3 states. [2018-10-27 08:18:56,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:18:56,180 INFO L93 Difference]: Finished difference Result 1156 states and 2144 transitions. [2018-10-27 08:18:56,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 08:18:56,182 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2018-10-27 08:18:56,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:18:56,209 INFO L225 Difference]: With dead ends: 1156 [2018-10-27 08:18:56,209 INFO L226 Difference]: Without dead ends: 744 [2018-10-27 08:18:56,220 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 08:18:56,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2018-10-27 08:18:56,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 744. [2018-10-27 08:18:56,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 744 states. [2018-10-27 08:18:56,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 744 states to 744 states and 1355 transitions. [2018-10-27 08:18:56,335 INFO L78 Accepts]: Start accepts. Automaton has 744 states and 1355 transitions. Word has length 54 [2018-10-27 08:18:56,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:18:56,336 INFO L481 AbstractCegarLoop]: Abstraction has 744 states and 1355 transitions. [2018-10-27 08:18:56,336 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 08:18:56,336 INFO L276 IsEmpty]: Start isEmpty. Operand 744 states and 1355 transitions. [2018-10-27 08:18:56,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2018-10-27 08:18:56,344 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:18:56,345 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:18:56,345 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:18:56,346 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:18:56,346 INFO L82 PathProgramCache]: Analyzing trace with hash 1783759150, now seen corresponding path program 1 times [2018-10-27 08:18:56,346 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:18:56,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:18:56,348 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:18:56,348 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:18:56,348 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:18:56,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:18:56,729 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:18:56,729 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:18:56,729 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 08:18:56,730 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:18:56,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 08:18:56,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 08:18:56,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 08:18:56,734 INFO L87 Difference]: Start difference. First operand 744 states and 1355 transitions. Second operand 5 states. [2018-10-27 08:19:04,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:19:04,561 INFO L93 Difference]: Finished difference Result 2189 states and 4061 transitions. [2018-10-27 08:19:04,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 08:19:04,562 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 126 [2018-10-27 08:19:04,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:19:04,574 INFO L225 Difference]: With dead ends: 2189 [2018-10-27 08:19:04,575 INFO L226 Difference]: Without dead ends: 1451 [2018-10-27 08:19:04,579 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 08:19:04,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2018-10-27 08:19:04,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1441. [2018-10-27 08:19:04,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1441 states. [2018-10-27 08:19:04,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1441 states to 1441 states and 2402 transitions. [2018-10-27 08:19:04,635 INFO L78 Accepts]: Start accepts. Automaton has 1441 states and 2402 transitions. Word has length 126 [2018-10-27 08:19:04,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:19:04,636 INFO L481 AbstractCegarLoop]: Abstraction has 1441 states and 2402 transitions. [2018-10-27 08:19:04,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 08:19:04,636 INFO L276 IsEmpty]: Start isEmpty. Operand 1441 states and 2402 transitions. [2018-10-27 08:19:04,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2018-10-27 08:19:04,643 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:19:04,643 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:19:04,644 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:19:04,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:19:04,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1039509551, now seen corresponding path program 1 times [2018-10-27 08:19:04,644 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:19:04,645 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:19:04,645 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:19:04,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:19:04,646 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:19:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:19:05,045 WARN L179 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 08:19:05,286 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 43 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-10-27 08:19:05,286 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:19:05,286 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:19:05,287 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 156 with the following transitions: [2018-10-27 08:19:05,292 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], [511], [513], [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], [796], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-27 08:19:05,365 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:19:05,366 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:19:05,953 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 08:19:05,955 INFO L272 AbstractInterpreter]: Visited 105 different actions 105 times. Never merged. Never widened. Never found a fixpoint. Largest state had 24 variables. [2018-10-27 08:19:05,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:19:05,997 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 08:19:06,436 INFO L227 lantSequenceWeakener]: Weakened 149 states. On average, predicates are now at 78.36% of their original sizes. [2018-10-27 08:19:06,437 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 08:19:06,675 INFO L415 sIntCurrentIteration]: We unified 154 AI predicates to 154 [2018-10-27 08:19:06,675 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 08:19:06,676 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 08:19:06,676 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2018-10-27 08:19:06,677 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:19:06,677 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 08:19:06,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 08:19:06,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 08:19:06,678 INFO L87 Difference]: Start difference. First operand 1441 states and 2402 transitions. Second operand 6 states. [2018-10-27 08:20:48,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:20:48,551 INFO L93 Difference]: Finished difference Result 3216 states and 5295 transitions. [2018-10-27 08:20:48,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-27 08:20:48,551 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 155 [2018-10-27 08:20:48,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:20:48,562 INFO L225 Difference]: With dead ends: 3216 [2018-10-27 08:20:48,562 INFO L226 Difference]: Without dead ends: 1781 [2018-10-27 08:20:48,568 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 155 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-10-27 08:20:48,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1781 states. [2018-10-27 08:20:48,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1781 to 1779. [2018-10-27 08:20:48,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1779 states. [2018-10-27 08:20:48,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1779 states to 1779 states and 2747 transitions. [2018-10-27 08:20:48,622 INFO L78 Accepts]: Start accepts. Automaton has 1779 states and 2747 transitions. Word has length 155 [2018-10-27 08:20:48,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:20:48,622 INFO L481 AbstractCegarLoop]: Abstraction has 1779 states and 2747 transitions. [2018-10-27 08:20:48,622 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 08:20:48,623 INFO L276 IsEmpty]: Start isEmpty. Operand 1779 states and 2747 transitions. [2018-10-27 08:20:48,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2018-10-27 08:20:48,628 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:20:48,628 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-10-27 08:20:48,629 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:20:48,629 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:20:48,629 INFO L82 PathProgramCache]: Analyzing trace with hash 171691597, now seen corresponding path program 1 times [2018-10-27 08:20:48,629 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:20:48,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:20:48,631 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:20:48,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:20:48,631 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:20:48,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:20:49,006 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2018-10-27 08:20:49,144 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 161 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:20:49,145 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:20:49,145 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:20:49,145 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 248 with the following transitions: [2018-10-27 08:20:49,146 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], [511], [513], [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], [760], [761], [765], [769], [773], [777], [781], [785], [789], [793], [796], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-27 08:20:49,152 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:20:49,152 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:20:49,425 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 08:20:49,426 INFO L272 AbstractInterpreter]: Visited 110 different actions 429 times. Merged at 7 different actions 25 times. Never widened. Found 4 fixpoints after 3 different actions. Largest state had 24 variables. [2018-10-27 08:20:49,468 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:20:49,470 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 08:20:49,470 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:20:49,470 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 08:20:49,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:20:49,486 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 08:20:49,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:20:49,650 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 08:20:50,165 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 184 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:20:50,165 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 08:20:50,845 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 184 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 08:20:50,866 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 08:20:50,866 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2018-10-27 08:20:50,867 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 08:20:50,868 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-27 08:20:50,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-27 08:20:50,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2018-10-27 08:20:50,869 INFO L87 Difference]: Start difference. First operand 1779 states and 2747 transitions. Second operand 10 states. [2018-10-27 08:21:00,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:21:00,225 INFO L93 Difference]: Finished difference Result 5661 states and 9161 transitions. [2018-10-27 08:21:00,234 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-27 08:21:00,234 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 247 [2018-10-27 08:21:00,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:21:00,256 INFO L225 Difference]: With dead ends: 5661 [2018-10-27 08:21:00,256 INFO L226 Difference]: Without dead ends: 3500 [2018-10-27 08:21:00,274 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 522 GetRequests, 497 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=183, Invalid=467, Unknown=0, NotChecked=0, Total=650 [2018-10-27 08:21:00,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3500 states. [2018-10-27 08:21:00,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3500 to 3489. [2018-10-27 08:21:00,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3489 states. [2018-10-27 08:21:00,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3489 states to 3489 states and 3971 transitions. [2018-10-27 08:21:00,378 INFO L78 Accepts]: Start accepts. Automaton has 3489 states and 3971 transitions. Word has length 247 [2018-10-27 08:21:00,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:21:00,379 INFO L481 AbstractCegarLoop]: Abstraction has 3489 states and 3971 transitions. [2018-10-27 08:21:00,380 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-27 08:21:00,380 INFO L276 IsEmpty]: Start isEmpty. Operand 3489 states and 3971 transitions. [2018-10-27 08:21:00,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2018-10-27 08:21:00,388 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:21:00,388 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:21:00,389 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:21:00,389 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:21:00,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1802199188, now seen corresponding path program 1 times [2018-10-27 08:21:00,390 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:21:00,390 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:21:00,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:21:00,391 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:21:00,391 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:21:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:21:00,848 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-10-27 08:21:00,848 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 08:21:00,849 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-27 08:21:00,849 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:21:00,850 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-27 08:21:00,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-27 08:21:00,850 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-27 08:21:00,851 INFO L87 Difference]: Start difference. First operand 3489 states and 3971 transitions. Second operand 4 states. [2018-10-27 08:21:03,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:21:03,824 INFO L93 Difference]: Finished difference Result 6969 states and 8181 transitions. [2018-10-27 08:21:03,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-27 08:21:03,827 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 424 [2018-10-27 08:21:03,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:21:03,858 INFO L225 Difference]: With dead ends: 6969 [2018-10-27 08:21:03,858 INFO L226 Difference]: Without dead ends: 4508 [2018-10-27 08:21:03,870 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 [2018-10-27 08:21:03,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4508 states. [2018-10-27 08:21:03,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4508 to 4503. [2018-10-27 08:21:03,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4503 states. [2018-10-27 08:21:03,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4503 states to 4503 states and 5013 transitions. [2018-10-27 08:21:03,977 INFO L78 Accepts]: Start accepts. Automaton has 4503 states and 5013 transitions. Word has length 424 [2018-10-27 08:21:03,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:21:03,978 INFO L481 AbstractCegarLoop]: Abstraction has 4503 states and 5013 transitions. [2018-10-27 08:21:03,979 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-27 08:21:03,979 INFO L276 IsEmpty]: Start isEmpty. Operand 4503 states and 5013 transitions. [2018-10-27 08:21:03,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 541 [2018-10-27 08:21:03,991 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:21:03,992 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, 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, 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] [2018-10-27 08:21:03,992 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:21:03,992 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:21:03,993 INFO L82 PathProgramCache]: Analyzing trace with hash -964356346, now seen corresponding path program 1 times [2018-10-27 08:21:03,993 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:21:03,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:21:03,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:21:03,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:21:03,994 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:21:04,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:21:04,742 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 374 proven. 2 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-10-27 08:21:04,743 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:21:04,743 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:21:04,743 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 541 with the following transitions: [2018-10-27 08:21:04,744 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], [511], [513], [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], [1352], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-27 08:21:04,757 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:21:04,757 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:21:05,744 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 08:21:05,744 INFO L272 AbstractInterpreter]: Visited 250 different actions 994 times. Merged at 8 different actions 29 times. Never widened. Found 6 fixpoints after 3 different actions. Largest state had 24 variables. [2018-10-27 08:21:05,786 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:21:05,786 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 08:21:05,786 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:21:05,787 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-10-27 08:21:05,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:21:05,798 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 08:21:05,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:21:05,954 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 08:21:06,572 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 374 proven. 2 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-10-27 08:21:06,572 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 08:21:07,058 INFO L134 CoverageAnalysis]: Checked inductivity of 503 backedges. 374 proven. 2 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2018-10-27 08:21:07,080 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 08:21:07,081 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2018-10-27 08:21:07,081 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 08:21:07,082 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 08:21:07,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 08:21:07,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-10-27 08:21:07,085 INFO L87 Difference]: Start difference. First operand 4503 states and 5013 transitions. Second operand 9 states. [2018-10-27 08:21:12,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:21:12,194 INFO L93 Difference]: Finished difference Result 11226 states and 13052 transitions. [2018-10-27 08:21:12,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-10-27 08:21:12,195 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 540 [2018-10-27 08:21:12,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:21:12,236 INFO L225 Difference]: With dead ends: 11226 [2018-10-27 08:21:12,236 INFO L226 Difference]: Without dead ends: 7067 [2018-10-27 08:21:12,257 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1101 GetRequests, 1083 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=114, Invalid=228, Unknown=0, NotChecked=0, Total=342 [2018-10-27 08:21:12,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7067 states. [2018-10-27 08:21:12,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7067 to 7018. [2018-10-27 08:21:12,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7018 states. [2018-10-27 08:21:12,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7018 states to 7018 states and 7778 transitions. [2018-10-27 08:21:12,445 INFO L78 Accepts]: Start accepts. Automaton has 7018 states and 7778 transitions. Word has length 540 [2018-10-27 08:21:12,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:21:12,446 INFO L481 AbstractCegarLoop]: Abstraction has 7018 states and 7778 transitions. [2018-10-27 08:21:12,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 08:21:12,446 INFO L276 IsEmpty]: Start isEmpty. Operand 7018 states and 7778 transitions. [2018-10-27 08:21:12,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 731 [2018-10-27 08:21:12,472 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:21:12,473 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:21:12,474 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:21:12,474 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:21:12,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1593308412, now seen corresponding path program 1 times [2018-10-27 08:21:12,474 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:21:12,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:21:12,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:21:12,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:21:12,475 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:21:12,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:21:14,054 WARN L179 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 13 [2018-10-27 08:21:15,565 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 216 proven. 574 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2018-10-27 08:21:15,566 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:21:15,566 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:21:15,566 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 731 with the following transitions: [2018-10-27 08:21:15,567 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], [511], [513], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [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], [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], [1352], [1353], [1357], [1361], [1365], [1369], [1373], [1377], [1381], [1385], [1389], [1392], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-27 08:21:15,575 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:21:15,575 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:21:15,830 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 08:21:15,830 INFO L272 AbstractInterpreter]: Visited 260 different actions 514 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 08:21:15,853 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:21:15,853 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 08:21:16,567 INFO L227 lantSequenceWeakener]: Weakened 727 states. On average, predicates are now at 77.56% of their original sizes. [2018-10-27 08:21:16,569 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 08:21:16,722 INFO L415 sIntCurrentIteration]: We unified 729 AI predicates to 729 [2018-10-27 08:21:16,722 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 08:21:16,722 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 08:21:16,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 22 [2018-10-27 08:21:16,723 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:21:16,724 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-27 08:21:16,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-27 08:21:16,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2018-10-27 08:21:16,725 INFO L87 Difference]: Start difference. First operand 7018 states and 7778 transitions. Second operand 10 states. [2018-10-27 08:22:13,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 08:22:13,829 INFO L93 Difference]: Finished difference Result 14035 states and 15574 transitions. [2018-10-27 08:22:13,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-10-27 08:22:13,829 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 730 [2018-10-27 08:22:13,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 08:22:13,861 INFO L225 Difference]: With dead ends: 14035 [2018-10-27 08:22:13,861 INFO L226 Difference]: Without dead ends: 7361 [2018-10-27 08:22:13,889 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 737 GetRequests, 721 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=84, Invalid=222, Unknown=0, NotChecked=0, Total=306 [2018-10-27 08:22:13,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7361 states. [2018-10-27 08:22:14,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7361 to 7358. [2018-10-27 08:22:14,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7358 states. [2018-10-27 08:22:14,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7358 states to 7358 states and 8125 transitions. [2018-10-27 08:22:14,056 INFO L78 Accepts]: Start accepts. Automaton has 7358 states and 8125 transitions. Word has length 730 [2018-10-27 08:22:14,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 08:22:14,057 INFO L481 AbstractCegarLoop]: Abstraction has 7358 states and 8125 transitions. [2018-10-27 08:22:14,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-27 08:22:14,057 INFO L276 IsEmpty]: Start isEmpty. Operand 7358 states and 8125 transitions. [2018-10-27 08:22:14,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 739 [2018-10-27 08:22:14,079 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 08:22:14,080 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 08:22:14,080 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 08:22:14,081 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:22:14,081 INFO L82 PathProgramCache]: Analyzing trace with hash 1806189940, now seen corresponding path program 1 times [2018-10-27 08:22:14,081 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 08:22:14,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:22:14,082 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 08:22:14,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 08:22:14,082 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 08:22:14,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 08:22:15,231 INFO L134 CoverageAnalysis]: Checked inductivity of 878 backedges. 494 proven. 2 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2018-10-27 08:22:15,232 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 08:22:15,232 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 08:22:15,232 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 739 with the following transitions: [2018-10-27 08:22:15,233 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], [511], [513], [516], [524], [532], [540], [548], [556], [564], [572], [580], [588], [596], [604], [612], [620], [628], [636], [644], [652], [660], [668], [672], [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], [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], [1384], [1385], [1389], [1392], [1552], [1556], [1560], [1566], [1570], [1572], [1579], [1580], [1581], [1583], [1584] [2018-10-27 08:22:15,239 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-27 08:22:15,239 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 08:22:15,578 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 08:22:15,579 INFO L272 AbstractInterpreter]: Visited 260 different actions 767 times. Merged at 5 different actions 9 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 24 variables. [2018-10-27 08:22:15,584 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 08:22:15,584 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 08:22:16,172 INFO L227 lantSequenceWeakener]: Weakened 735 states. On average, predicates are now at 80.25% of their original sizes. [2018-10-27 08:22:16,172 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 08:22:16,260 INFO L415 sIntCurrentIteration]: We unified 737 AI predicates to 737 [2018-10-27 08:22:16,260 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 08:22:16,261 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 08:22:16,261 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2018-10-27 08:22:16,261 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 08:22:16,262 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 08:22:16,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 08:22:16,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-10-27 08:22:16,263 INFO L87 Difference]: Start difference. First operand 7358 states and 8125 transitions. Second operand 9 states. Received shutdown request... [2018-10-27 08:22:38,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-27 08:22:38,315 WARN L550 AbstractCegarLoop]: Verification canceled [2018-10-27 08:22:38,320 WARN L205 ceAbstractionStarter]: Timeout [2018-10-27 08:22:38,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 08:22:38 BoogieIcfgContainer [2018-10-27 08:22:38,321 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 08:22:38,322 INFO L168 Benchmark]: Toolchain (without parser) took 234955.90 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 1.8 GB in the end (delta: -396.8 MB). Peak memory consumption was 2.2 GB. Max. memory is 7.1 GB. [2018-10-27 08:22:38,323 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 08:22:38,324 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1318.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 7.1 GB. [2018-10-27 08:22:38,325 INFO L168 Benchmark]: Boogie Procedure Inliner took 321.74 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 761.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -864.9 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2018-10-27 08:22:38,326 INFO L168 Benchmark]: Boogie Preprocessor took 132.57 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. [2018-10-27 08:22:38,326 INFO L168 Benchmark]: RCFGBuilder took 6830.20 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: 270.2 MB). Peak memory consumption was 270.2 MB. Max. memory is 7.1 GB. [2018-10-27 08:22:38,327 INFO L168 Benchmark]: TraceAbstraction took 226343.81 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 1.8 GB in the end (delta: 107.8 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. [2018-10-27 08:22:38,332 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1318.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 321.74 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 761.8 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -864.9 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 132.57 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 6830.20 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: 270.2 MB). Peak memory consumption was 270.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 226343.81 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 1.9 GB in the beginning and 1.8 GB in the end (delta: 107.8 MB). Peak memory consumption was 2.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 148]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 148). Cancelled while BasicCegarLoop was constructing difference of abstraction (7358states) and FLOYD_HOARE automaton (currently 14 states, 9 states before enhancement),while ReachableStatesComputation was computing reachable states (10059 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 410 locations, 1 error locations. TIMEOUT Result, 226.2s OverallTime, 8 OverallIterations, 5 TraceHistogramMax, 210.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1268 SDtfs, 14079 SDslu, 1332 SDs, 0 SdLazy, 15682 SolverSat, 4110 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 176.7s Time, PredicateUnifierStatistics: 6 DeclaredPredicates, 3278 GetRequests, 3188 SyntacticMatches, 5 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 2.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7358occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 2.7s AbstIntTime, 5 AbstIntIterations, 3 AbstIntStrong, 0.9981481820860166 AbsIntWeakeningRatio, 0.05925925925925926 AbsIntAvgWeakeningVarsNumRemoved, 16.17654320987654 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 7 MinimizatonAttempts, 80 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 7.0s InterpolantComputationTime, 3801 NumberOfCodeBlocks, 3801 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 4576 ConstructedInterpolants, 0 QuantifiedInterpolants, 10204165 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1198 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 3 PerfectInterpolantSequences, 3479/4133 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown