java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem11_label02_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:19:28,443 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:19:28,446 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:19:28,464 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:19:28,464 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:19:28,465 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:19:28,467 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:19:28,469 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:19:28,473 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:19:28,474 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:19:28,476 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:19:28,477 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:19:28,478 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:19:28,479 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:19:28,490 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:19:28,491 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:19:28,491 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:19:28,493 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:19:28,498 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:19:28,502 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:19:28,503 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:19:28,505 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:19:28,507 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 11:19:28,507 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 11:19:28,507 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 11:19:28,508 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 11:19:28,511 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 11:19:28,512 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 11:19:28,513 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 11:19:28,515 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 11:19:28,516 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 11:19:28,517 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 11:19:28,518 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 11:19:28,518 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 11:19:28,519 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 11:19:28,521 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 11:19:28,521 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-18 11:19:28,555 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:19:28,555 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:19:28,556 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:19:28,557 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:19:28,557 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:19:28,558 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:19:28,558 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:19:28,558 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:19:28,558 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:19:28,558 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:19:28,559 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:19:28,559 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:19:28,560 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:19:28,560 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:19:28,560 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:19:28,560 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:19:28,561 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:19:28,561 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:19:28,561 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:19:28,561 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:19:28,561 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:19:28,561 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:19:28,562 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:19:28,562 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:19:28,562 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:19:28,562 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:19:28,562 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:19:28,563 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:19:28,563 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:19:28,563 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:19:28,563 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:19:28,563 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:19:28,564 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:19:28,564 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:19:28,607 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:19:28,620 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:19:28,624 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:19:28,626 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:19:28,627 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:19:28,627 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label02_true-unreach-call.c [2018-09-18 11:19:28,895 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28ec56e95/db9469ec03214a548c8ecedf02061cb0/FLAGf4aad1f8d [2018-09-18 11:19:29,287 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:19:29,287 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label02_true-unreach-call.c [2018-09-18 11:19:29,304 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28ec56e95/db9469ec03214a548c8ecedf02061cb0/FLAGf4aad1f8d [2018-09-18 11:19:29,320 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/28ec56e95/db9469ec03214a548c8ecedf02061cb0 [2018-09-18 11:19:29,331 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:19:29,335 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:19:29,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:19:29,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:19:29,343 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:19:29,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:19:29" (1/1) ... [2018-09-18 11:19:29,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bd0059a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:19:29, skipping insertion in model container [2018-09-18 11:19:29,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:19:29" (1/1) ... [2018-09-18 11:19:29,362 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:19:29,998 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:19:30,020 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:19:30,209 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:19:30,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:19:30 WrapperNode [2018-09-18 11:19:30,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:19:30,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:19:30,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:19:30,299 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:19:30,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:19:30" (1/1) ... [2018-09-18 11:19:30,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:19:30" (1/1) ... [2018-09-18 11:19:30,487 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:19:30,487 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:19:30,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:19:30,488 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:19:30,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:19:30" (1/1) ... [2018-09-18 11:19:30,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:19:30" (1/1) ... [2018-09-18 11:19:30,759 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:19:30" (1/1) ... [2018-09-18 11:19:30,759 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:19:30" (1/1) ... [2018-09-18 11:19:30,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:19:30" (1/1) ... [2018-09-18 11:19:30,839 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:19:30" (1/1) ... [2018-09-18 11:19:30,866 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:19:30" (1/1) ... [2018-09-18 11:19:30,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:19:30,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:19:30,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:19:30,877 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:19:30,878 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:19:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:19:30,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:19:30,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:19:30,957 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:19:30,957 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:19:30,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:19:30,958 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:19:30,958 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:19:30,959 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:19:35,302 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:19:35,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:19:35 BoogieIcfgContainer [2018-09-18 11:19:35,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:19:35,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:19:35,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:19:35,308 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:19:35,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:19:29" (1/3) ... [2018-09-18 11:19:35,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fbb33b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:19:35, skipping insertion in model container [2018-09-18 11:19:35,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:19:30" (2/3) ... [2018-09-18 11:19:35,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fbb33b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:19:35, skipping insertion in model container [2018-09-18 11:19:35,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:19:35" (3/3) ... [2018-09-18 11:19:35,312 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label02_true-unreach-call.c [2018-09-18 11:19:35,321 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:19:35,331 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:19:35,389 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:19:35,390 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:19:35,391 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:19:35,391 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:19:35,391 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:19:35,391 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:19:35,391 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:19:35,392 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:19:35,392 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:19:35,423 INFO L276 IsEmpty]: Start isEmpty. Operand 293 states. [2018-09-18 11:19:35,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-09-18 11:19:35,433 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:19:35,434 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:19:35,436 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:19:35,441 INFO L82 PathProgramCache]: Analyzing trace with hash -1008235991, now seen corresponding path program 1 times [2018-09-18 11:19:35,444 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:19:35,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:19:35,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:19:35,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:19:35,499 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:19:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:19:36,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:19:36,030 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:19:36,030 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:19:36,030 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:19:36,036 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:19:36,052 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:19:36,052 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:19:36,055 INFO L87 Difference]: Start difference. First operand 293 states. Second operand 4 states. [2018-09-18 11:19:39,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:19:39,387 INFO L93 Difference]: Finished difference Result 985 states and 1761 transitions. [2018-09-18 11:19:39,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:19:39,389 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 61 [2018-09-18 11:19:39,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:19:39,413 INFO L225 Difference]: With dead ends: 985 [2018-09-18 11:19:39,413 INFO L226 Difference]: Without dead ends: 686 [2018-09-18 11:19:39,423 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:19:39,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2018-09-18 11:19:39,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 686. [2018-09-18 11:19:39,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 686 states. [2018-09-18 11:19:39,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 686 states to 686 states and 1046 transitions. [2018-09-18 11:19:39,543 INFO L78 Accepts]: Start accepts. Automaton has 686 states and 1046 transitions. Word has length 61 [2018-09-18 11:19:39,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:19:39,544 INFO L480 AbstractCegarLoop]: Abstraction has 686 states and 1046 transitions. [2018-09-18 11:19:39,544 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:19:39,544 INFO L276 IsEmpty]: Start isEmpty. Operand 686 states and 1046 transitions. [2018-09-18 11:19:39,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2018-09-18 11:19:39,563 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:19:39,563 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:19:39,564 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:19:39,564 INFO L82 PathProgramCache]: Analyzing trace with hash 512006507, now seen corresponding path program 1 times [2018-09-18 11:19:39,564 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:19:39,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:19:39,567 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:19:39,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:19:39,568 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:19:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:19:40,002 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:19:40,003 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:19:40,003 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-18 11:19:40,003 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:19:40,005 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-18 11:19:40,006 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-18 11:19:40,006 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-09-18 11:19:40,006 INFO L87 Difference]: Start difference. First operand 686 states and 1046 transitions. Second operand 6 states. [2018-09-18 11:19:45,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:19:45,819 INFO L93 Difference]: Finished difference Result 2340 states and 3736 transitions. [2018-09-18 11:19:45,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:19:45,822 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 142 [2018-09-18 11:19:45,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:19:45,838 INFO L225 Difference]: With dead ends: 2340 [2018-09-18 11:19:45,838 INFO L226 Difference]: Without dead ends: 1660 [2018-09-18 11:19:45,843 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2018-09-18 11:19:45,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1660 states. [2018-09-18 11:19:45,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1660 to 1641. [2018-09-18 11:19:45,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1641 states. [2018-09-18 11:19:45,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1641 states to 1641 states and 2355 transitions. [2018-09-18 11:19:45,942 INFO L78 Accepts]: Start accepts. Automaton has 1641 states and 2355 transitions. Word has length 142 [2018-09-18 11:19:45,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:19:45,943 INFO L480 AbstractCegarLoop]: Abstraction has 1641 states and 2355 transitions. [2018-09-18 11:19:45,943 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-18 11:19:45,943 INFO L276 IsEmpty]: Start isEmpty. Operand 1641 states and 2355 transitions. [2018-09-18 11:19:45,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2018-09-18 11:19:45,958 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:19:45,958 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:19:45,959 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:19:45,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1402056089, now seen corresponding path program 1 times [2018-09-18 11:19:45,959 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:19:45,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:19:45,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:19:45,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:19:45,962 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:19:46,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:19:46,160 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:19:46,161 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:19:46,161 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:19:46,161 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:19:46,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:19:46,162 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:19:46,162 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:19:46,163 INFO L87 Difference]: Start difference. First operand 1641 states and 2355 transitions. Second operand 4 states. [2018-09-18 11:19:48,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:19:48,971 INFO L93 Difference]: Finished difference Result 6235 states and 9307 transitions. [2018-09-18 11:19:48,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:19:48,972 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 156 [2018-09-18 11:19:48,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:19:49,005 INFO L225 Difference]: With dead ends: 6235 [2018-09-18 11:19:49,006 INFO L226 Difference]: Without dead ends: 4600 [2018-09-18 11:19:49,020 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:19:49,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4600 states. [2018-09-18 11:19:49,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4600 to 4575. [2018-09-18 11:19:49,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4575 states. [2018-09-18 11:19:49,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4575 states to 4575 states and 6360 transitions. [2018-09-18 11:19:49,183 INFO L78 Accepts]: Start accepts. Automaton has 4575 states and 6360 transitions. Word has length 156 [2018-09-18 11:19:49,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:19:49,183 INFO L480 AbstractCegarLoop]: Abstraction has 4575 states and 6360 transitions. [2018-09-18 11:19:49,183 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:19:49,184 INFO L276 IsEmpty]: Start isEmpty. Operand 4575 states and 6360 transitions. [2018-09-18 11:19:49,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-09-18 11:19:49,191 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:19:49,192 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2018-09-18 11:19:49,192 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:19:49,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1808581075, now seen corresponding path program 1 times [2018-09-18 11:19:49,193 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:19:49,194 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:19:49,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:19:49,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:19:49,195 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:19:49,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:19:49,767 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:19:49,767 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:19:49,767 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:19:49,777 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:19:49,777 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:19:49,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:19:49,882 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:19:50,039 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:19:50,039 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:19:50,599 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:19:50,632 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 11:19:50,633 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [8] total 9 [2018-09-18 11:19:50,633 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:19:50,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:19:50,634 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:19:50,634 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:19:50,638 INFO L87 Difference]: Start difference. First operand 4575 states and 6360 transitions. Second operand 3 states. [2018-09-18 11:19:53,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:19:53,175 INFO L93 Difference]: Finished difference Result 11273 states and 16210 transitions. [2018-09-18 11:19:53,180 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:19:53,181 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 193 [2018-09-18 11:19:53,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:19:53,222 INFO L225 Difference]: With dead ends: 11273 [2018-09-18 11:19:53,222 INFO L226 Difference]: Without dead ends: 6893 [2018-09-18 11:19:53,253 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 386 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:19:53,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6893 states. [2018-09-18 11:19:53,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6893 to 6699. [2018-09-18 11:19:53,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6699 states. [2018-09-18 11:19:53,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6699 states to 6699 states and 9059 transitions. [2018-09-18 11:19:53,439 INFO L78 Accepts]: Start accepts. Automaton has 6699 states and 9059 transitions. Word has length 193 [2018-09-18 11:19:53,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:19:53,440 INFO L480 AbstractCegarLoop]: Abstraction has 6699 states and 9059 transitions. [2018-09-18 11:19:53,440 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:19:53,440 INFO L276 IsEmpty]: Start isEmpty. Operand 6699 states and 9059 transitions. [2018-09-18 11:19:53,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2018-09-18 11:19:53,453 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:19:53,454 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:19:53,454 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:19:53,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1389847326, now seen corresponding path program 1 times [2018-09-18 11:19:53,455 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:19:53,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:19:53,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:19:53,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:19:53,456 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:19:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:19:54,206 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2018-09-18 11:19:54,653 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 158 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:19:54,653 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:19:54,653 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:19:54,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:19:54,661 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:19:54,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:19:54,767 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:19:54,998 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-09-18 11:19:54,999 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:19:55,831 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 113 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:19:55,853 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:19:55,853 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:19:55,877 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:19:55,878 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:19:56,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:19:56,101 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:19:56,247 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 113 proven. 2 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2018-09-18 11:19:56,248 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:19:56,577 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 113 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:19:56,579 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:19:56,580 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 7, 8, 7, 8] total 24 [2018-09-18 11:19:56,580 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:19:56,581 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-09-18 11:19:56,581 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-09-18 11:19:56,581 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2018-09-18 11:19:56,581 INFO L87 Difference]: Start difference. First operand 6699 states and 9059 transitions. Second operand 19 states. [2018-09-18 11:20:03,579 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2018-09-18 11:20:21,108 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2018-09-18 11:20:25,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:20:25,447 INFO L93 Difference]: Finished difference Result 25193 states and 41301 transitions. [2018-09-18 11:20:25,447 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2018-09-18 11:20:25,447 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 298 [2018-09-18 11:20:25,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:20:25,593 INFO L225 Difference]: With dead ends: 25193 [2018-09-18 11:20:25,593 INFO L226 Difference]: Without dead ends: 17939 [2018-09-18 11:20:25,719 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1336 GetRequests, 1201 SyntacticMatches, 4 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6400 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=2544, Invalid=15012, Unknown=0, NotChecked=0, Total=17556 [2018-09-18 11:20:25,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17939 states. [2018-09-18 11:20:26,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17939 to 16836. [2018-09-18 11:20:26,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16836 states. [2018-09-18 11:20:26,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16836 states to 16836 states and 21723 transitions. [2018-09-18 11:20:26,294 INFO L78 Accepts]: Start accepts. Automaton has 16836 states and 21723 transitions. Word has length 298 [2018-09-18 11:20:26,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:20:26,295 INFO L480 AbstractCegarLoop]: Abstraction has 16836 states and 21723 transitions. [2018-09-18 11:20:26,295 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-09-18 11:20:26,295 INFO L276 IsEmpty]: Start isEmpty. Operand 16836 states and 21723 transitions. [2018-09-18 11:20:26,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 407 [2018-09-18 11:20:26,337 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:20:26,337 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-09-18 11:20:26,338 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:20:26,338 INFO L82 PathProgramCache]: Analyzing trace with hash 391462463, now seen corresponding path program 1 times [2018-09-18 11:20:26,338 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:20:26,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:20:26,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:20:26,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:20:26,339 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:20:26,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:20:27,186 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 168 proven. 206 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-09-18 11:20:27,187 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:20:27,187 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2018-09-18 11:20:27,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:20:27,206 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:20:27,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:20:27,336 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:20:29,212 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 318 proven. 107 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-09-18 11:20:29,213 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:20:29,794 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 273 proven. 104 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2018-09-18 11:20:29,815 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:20:29,815 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:20:29,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:20:29,832 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:20:30,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:20:30,118 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:20:30,961 WARN L178 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 16 [2018-09-18 11:20:33,134 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 318 proven. 107 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2018-09-18 11:20:33,134 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:20:33,430 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-09-18 11:20:33,563 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 273 proven. 104 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2018-09-18 11:20:33,565 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:20:33,566 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 5, 8, 5] total 15 [2018-09-18 11:20:33,566 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:20:33,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-18 11:20:33,569 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-18 11:20:33,569 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=150, Unknown=3, NotChecked=0, Total=210 [2018-09-18 11:20:33,569 INFO L87 Difference]: Start difference. First operand 16836 states and 21723 transitions. Second operand 10 states. [2018-09-18 11:20:36,859 WARN L178 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2018-09-18 11:21:44,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:21:44,126 INFO L93 Difference]: Finished difference Result 49444 states and 72262 transitions. [2018-09-18 11:21:44,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-09-18 11:21:44,127 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 406 [2018-09-18 11:21:44,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:21:44,331 INFO L225 Difference]: With dead ends: 49444 [2018-09-18 11:21:44,331 INFO L226 Difference]: Without dead ends: 32995 [2018-09-18 11:21:44,629 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1665 GetRequests, 1628 SyntacticMatches, 7 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 16.2s TimeCoverageRelationStatistics Valid=235, Invalid=743, Unknown=14, NotChecked=0, Total=992 [2018-09-18 11:21:44,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32995 states. [2018-09-18 11:21:45,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32995 to 32403. [2018-09-18 11:21:45,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32403 states. [2018-09-18 11:21:45,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32403 states to 32403 states and 43808 transitions. [2018-09-18 11:21:45,579 INFO L78 Accepts]: Start accepts. Automaton has 32403 states and 43808 transitions. Word has length 406 [2018-09-18 11:21:45,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:21:45,580 INFO L480 AbstractCegarLoop]: Abstraction has 32403 states and 43808 transitions. [2018-09-18 11:21:45,580 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-18 11:21:45,580 INFO L276 IsEmpty]: Start isEmpty. Operand 32403 states and 43808 transitions. [2018-09-18 11:21:45,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2018-09-18 11:21:45,727 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:21:45,728 INFO L376 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, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:21:45,728 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:21:45,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1251224200, now seen corresponding path program 1 times [2018-09-18 11:21:45,729 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:21:45,729 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:21:45,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:21:45,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:21:45,730 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:21:45,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:21:46,716 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 227 proven. 382 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2018-09-18 11:21:46,717 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:21:46,717 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:21:46,733 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:21:46,734 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:21:46,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:21:46,891 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:21:47,380 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 517 proven. 2 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2018-09-18 11:21:47,381 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:21:48,415 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 517 proven. 2 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2018-09-18 11:21:48,437 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:21:48,437 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:21:48,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:21:48,454 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:21:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:21:48,806 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:21:49,031 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 517 proven. 10 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2018-09-18 11:21:49,031 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:21:49,705 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 517 proven. 2 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2018-09-18 11:21:49,708 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:21:49,708 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5, 6, 5] total 13 [2018-09-18 11:21:49,708 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:21:49,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-18 11:21:49,711 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-18 11:21:49,711 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2018-09-18 11:21:49,711 INFO L87 Difference]: Start difference. First operand 32403 states and 43808 transitions. Second operand 10 states. [2018-09-18 11:21:51,201 WARN L178 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 22 [2018-09-18 11:22:00,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:22:00,434 INFO L93 Difference]: Finished difference Result 73740 states and 103345 transitions. [2018-09-18 11:22:00,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-09-18 11:22:00,435 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 507 [2018-09-18 11:22:00,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:22:00,630 INFO L225 Difference]: With dead ends: 73740 [2018-09-18 11:22:00,631 INFO L226 Difference]: Without dead ends: 41726 [2018-09-18 11:22:00,768 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2102 GetRequests, 2053 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 613 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=404, Invalid=1852, Unknown=0, NotChecked=0, Total=2256 [2018-09-18 11:22:00,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41726 states. [2018-09-18 11:22:01,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41726 to 41506. [2018-09-18 11:22:01,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41506 states. [2018-09-18 11:22:01,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41506 states to 41506 states and 55522 transitions. [2018-09-18 11:22:01,822 INFO L78 Accepts]: Start accepts. Automaton has 41506 states and 55522 transitions. Word has length 507 [2018-09-18 11:22:01,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:22:01,823 INFO L480 AbstractCegarLoop]: Abstraction has 41506 states and 55522 transitions. [2018-09-18 11:22:01,823 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-18 11:22:01,823 INFO L276 IsEmpty]: Start isEmpty. Operand 41506 states and 55522 transitions. [2018-09-18 11:22:01,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2018-09-18 11:22:01,926 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:22:01,926 INFO L376 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, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-09-18 11:22:01,926 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:22:01,927 INFO L82 PathProgramCache]: Analyzing trace with hash -635554679, now seen corresponding path program 1 times [2018-09-18 11:22:01,927 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:22:01,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:22:01,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:22:01,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:22:01,928 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:22:02,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:22:03,222 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 394 proven. 294 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2018-09-18 11:22:03,223 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:22:03,223 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:22:03,230 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:22:03,230 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:22:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:22:03,380 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:22:03,988 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 517 proven. 2 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2018-09-18 11:22:03,988 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:22:04,645 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 517 proven. 2 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2018-09-18 11:22:04,665 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:22:04,666 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:22:04,682 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:22:04,682 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:22:05,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:22:05,033 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:22:05,579 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 517 proven. 2 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2018-09-18 11:22:05,580 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:22:05,920 WARN L178 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2018-09-18 11:22:06,457 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 517 proven. 2 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2018-09-18 11:22:06,459 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:22:06,459 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 6, 6, 6, 6] total 26 [2018-09-18 11:22:06,460 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:22:06,461 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-09-18 11:22:06,461 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-09-18 11:22:06,461 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=532, Unknown=0, NotChecked=0, Total=650 [2018-09-18 11:22:06,462 INFO L87 Difference]: Start difference. First operand 41506 states and 55522 transitions. Second operand 19 states. [2018-09-18 11:22:29,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:22:29,047 INFO L93 Difference]: Finished difference Result 97850 states and 149508 transitions. [2018-09-18 11:22:29,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2018-09-18 11:22:29,047 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 518 [2018-09-18 11:22:29,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:22:29,496 INFO L225 Difference]: With dead ends: 97850 [2018-09-18 11:22:29,496 INFO L226 Difference]: Without dead ends: 56539 [2018-09-18 11:22:29,824 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2227 GetRequests, 2120 SyntacticMatches, 4 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3732 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1811, Invalid=9109, Unknown=0, NotChecked=0, Total=10920 [2018-09-18 11:22:29,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56539 states. [2018-09-18 11:22:31,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56539 to 53578. [2018-09-18 11:22:31,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53578 states. [2018-09-18 11:22:31,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53578 states to 53578 states and 67450 transitions. [2018-09-18 11:22:31,814 INFO L78 Accepts]: Start accepts. Automaton has 53578 states and 67450 transitions. Word has length 518 [2018-09-18 11:22:31,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:22:31,815 INFO L480 AbstractCegarLoop]: Abstraction has 53578 states and 67450 transitions. [2018-09-18 11:22:31,815 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-09-18 11:22:31,815 INFO L276 IsEmpty]: Start isEmpty. Operand 53578 states and 67450 transitions. [2018-09-18 11:22:31,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 519 [2018-09-18 11:22:31,900 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:22:31,901 INFO L376 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, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-09-18 11:22:31,901 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:22:31,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1736162187, now seen corresponding path program 1 times [2018-09-18 11:22:31,902 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:22:31,902 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:22:31,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:22:31,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:22:31,903 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:22:31,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:22:32,327 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 232 proven. 2 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2018-09-18 11:22:32,327 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:22:32,327 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:22:32,345 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:22:32,345 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:22:32,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:22:32,494 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:22:32,642 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 462 proven. 0 refuted. 0 times theorem prover too weak. 352 trivial. 0 not checked. [2018-09-18 11:22:32,642 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:22:33,046 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 232 proven. 2 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2018-09-18 11:22:33,067 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:22:33,067 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 3 [2018-09-18 11:22:33,067 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:22:33,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:22:33,068 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:22:33,068 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:22:33,069 INFO L87 Difference]: Start difference. First operand 53578 states and 67450 transitions. Second operand 3 states. [2018-09-18 11:22:34,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:22:34,990 INFO L93 Difference]: Finished difference Result 117252 states and 150299 transitions. [2018-09-18 11:22:34,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:22:34,990 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 518 [2018-09-18 11:22:34,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:22:35,190 INFO L225 Difference]: With dead ends: 117252 [2018-09-18 11:22:35,191 INFO L226 Difference]: Without dead ends: 53031 [2018-09-18 11:22:35,413 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1038 GetRequests, 1037 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:22:35,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53031 states. [2018-09-18 11:22:37,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53031 to 53029. [2018-09-18 11:22:37,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53029 states. [2018-09-18 11:22:37,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53029 states to 53029 states and 64636 transitions. [2018-09-18 11:22:37,282 INFO L78 Accepts]: Start accepts. Automaton has 53029 states and 64636 transitions. Word has length 518 [2018-09-18 11:22:37,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:22:37,283 INFO L480 AbstractCegarLoop]: Abstraction has 53029 states and 64636 transitions. [2018-09-18 11:22:37,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:22:37,283 INFO L276 IsEmpty]: Start isEmpty. Operand 53029 states and 64636 transitions. [2018-09-18 11:22:37,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2018-09-18 11:22:37,404 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:22:37,405 INFO L376 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, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-09-18 11:22:37,405 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:22:37,405 INFO L82 PathProgramCache]: Analyzing trace with hash 2140308035, now seen corresponding path program 1 times [2018-09-18 11:22:37,406 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:22:37,406 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:22:37,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:22:37,407 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:22:37,407 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:22:37,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:22:38,546 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 431 proven. 123 refuted. 0 times theorem prover too weak. 323 trivial. 0 not checked. [2018-09-18 11:22:38,546 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:22:38,546 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:22:38,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:22:38,554 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:22:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:22:38,704 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:22:38,888 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 693 proven. 2 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2018-09-18 11:22:38,888 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:22:39,311 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 443 proven. 104 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-09-18 11:22:39,332 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:22:39,332 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:22:39,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:22:39,350 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:22:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:22:39,747 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:22:40,121 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 693 proven. 2 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2018-09-18 11:22:40,121 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:22:40,961 INFO L134 CoverageAnalysis]: Checked inductivity of 877 backedges. 443 proven. 104 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-09-18 11:22:40,963 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:22:40,964 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5, 5, 5] total 19 [2018-09-18 11:22:40,964 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:22:40,965 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2018-09-18 11:22:40,965 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2018-09-18 11:22:40,965 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=253, Unknown=0, NotChecked=0, Total=342 [2018-09-18 11:22:40,965 INFO L87 Difference]: Start difference. First operand 53029 states and 64636 transitions. Second operand 16 states. [2018-09-18 11:22:49,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:22:49,826 INFO L93 Difference]: Finished difference Result 99837 states and 124305 transitions. [2018-09-18 11:22:49,826 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2018-09-18 11:22:49,826 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 545 [2018-09-18 11:22:49,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:22:49,931 INFO L225 Difference]: With dead ends: 99837 [2018-09-18 11:22:49,932 INFO L226 Difference]: Without dead ends: 42783 [2018-09-18 11:22:50,031 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2263 GetRequests, 2203 SyntacticMatches, 9 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 833 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=591, Invalid=2165, Unknown=0, NotChecked=0, Total=2756 [2018-09-18 11:22:50,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42783 states. [2018-09-18 11:22:51,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42783 to 42663. [2018-09-18 11:22:51,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42663 states. [2018-09-18 11:22:51,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42663 states to 42663 states and 52648 transitions. [2018-09-18 11:22:51,895 INFO L78 Accepts]: Start accepts. Automaton has 42663 states and 52648 transitions. Word has length 545 [2018-09-18 11:22:51,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:22:51,896 INFO L480 AbstractCegarLoop]: Abstraction has 42663 states and 52648 transitions. [2018-09-18 11:22:51,896 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2018-09-18 11:22:51,896 INFO L276 IsEmpty]: Start isEmpty. Operand 42663 states and 52648 transitions. [2018-09-18 11:22:52,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2018-09-18 11:22:52,016 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:22:52,017 INFO L376 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, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-09-18 11:22:52,017 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:22:52,017 INFO L82 PathProgramCache]: Analyzing trace with hash 186667702, now seen corresponding path program 1 times [2018-09-18 11:22:52,017 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:22:52,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:22:52,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:22:52,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:22:52,020 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:22:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:22:53,048 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 517 proven. 2 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2018-09-18 11:22:53,049 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:22:53,049 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:22:53,065 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:22:53,065 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:22:53,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:22:53,216 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:22:53,549 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 517 proven. 2 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2018-09-18 11:22:53,549 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:22:53,948 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 517 proven. 2 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2018-09-18 11:22:53,968 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:22:53,969 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:22:53,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:22:53,985 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:22:54,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:22:54,337 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:22:54,478 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 517 proven. 2 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2018-09-18 11:22:54,478 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:22:55,304 INFO L134 CoverageAnalysis]: Checked inductivity of 814 backedges. 517 proven. 2 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2018-09-18 11:22:55,306 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:22:55,307 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6, 6, 6] total 11 [2018-09-18 11:22:55,307 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:22:55,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-18 11:22:55,308 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-18 11:22:55,308 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:22:55,309 INFO L87 Difference]: Start difference. First operand 42663 states and 52648 transitions. Second operand 8 states. [2018-09-18 11:23:00,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:23:00,015 INFO L93 Difference]: Finished difference Result 87863 states and 111875 transitions. [2018-09-18 11:23:00,016 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-09-18 11:23:00,016 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 550 [2018-09-18 11:23:00,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:23:00,140 INFO L225 Difference]: With dead ends: 87863 [2018-09-18 11:23:00,141 INFO L226 Difference]: Without dead ends: 40810 [2018-09-18 11:23:00,251 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2223 GetRequests, 2200 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=135, Invalid=285, Unknown=0, NotChecked=0, Total=420 [2018-09-18 11:23:00,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40810 states. [2018-09-18 11:23:01,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40810 to 38071. [2018-09-18 11:23:01,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38071 states. [2018-09-18 11:23:01,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38071 states to 38071 states and 46145 transitions. [2018-09-18 11:23:01,109 INFO L78 Accepts]: Start accepts. Automaton has 38071 states and 46145 transitions. Word has length 550 [2018-09-18 11:23:01,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:23:01,111 INFO L480 AbstractCegarLoop]: Abstraction has 38071 states and 46145 transitions. [2018-09-18 11:23:01,111 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-18 11:23:01,111 INFO L276 IsEmpty]: Start isEmpty. Operand 38071 states and 46145 transitions. [2018-09-18 11:23:01,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2018-09-18 11:23:01,211 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:23:01,211 INFO L376 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, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2018-09-18 11:23:01,212 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:23:01,212 INFO L82 PathProgramCache]: Analyzing trace with hash 721908230, now seen corresponding path program 1 times [2018-09-18 11:23:01,213 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:23:01,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:23:01,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:23:01,214 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:23:01,214 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:23:01,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:23:01,837 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 535 proven. 2 refuted. 0 times theorem prover too weak. 401 trivial. 0 not checked. [2018-09-18 11:23:01,838 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:23:01,838 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:23:01,845 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:23:01,845 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:23:01,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:23:02,005 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:23:02,914 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 239 proven. 8 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2018-09-18 11:23:02,915 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:23:03,065 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-18 11:23:03,672 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 241 proven. 463 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2018-09-18 11:23:03,693 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:23:03,693 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:23:03,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:23:03,709 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:23:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:23:04,088 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:23:04,294 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 239 proven. 8 refuted. 0 times theorem prover too weak. 691 trivial. 0 not checked. [2018-09-18 11:23:04,294 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:23:04,988 INFO L134 CoverageAnalysis]: Checked inductivity of 938 backedges. 241 proven. 463 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2018-09-18 11:23:04,990 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:23:04,991 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 8, 7, 8] total 14 [2018-09-18 11:23:04,991 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:23:04,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-09-18 11:23:04,992 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-09-18 11:23:04,992 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2018-09-18 11:23:04,993 INFO L87 Difference]: Start difference. First operand 38071 states and 46145 transitions. Second operand 10 states. [2018-09-18 11:23:09,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:23:09,577 INFO L93 Difference]: Finished difference Result 79276 states and 98130 transitions. [2018-09-18 11:23:09,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-18 11:23:09,578 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 587 [2018-09-18 11:23:09,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:23:09,698 INFO L225 Difference]: With dead ends: 79276 [2018-09-18 11:23:09,698 INFO L226 Difference]: Without dead ends: 42963 [2018-09-18 11:23:09,770 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2375 GetRequests, 2343 SyntacticMatches, 8 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=196, Invalid=454, Unknown=0, NotChecked=0, Total=650 [2018-09-18 11:23:09,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42963 states. [2018-09-18 11:23:10,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42963 to 41142. [2018-09-18 11:23:10,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41142 states. [2018-09-18 11:23:10,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41142 states to 41142 states and 50235 transitions. [2018-09-18 11:23:10,520 INFO L78 Accepts]: Start accepts. Automaton has 41142 states and 50235 transitions. Word has length 587 [2018-09-18 11:23:10,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:23:10,521 INFO L480 AbstractCegarLoop]: Abstraction has 41142 states and 50235 transitions. [2018-09-18 11:23:10,521 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-09-18 11:23:10,521 INFO L276 IsEmpty]: Start isEmpty. Operand 41142 states and 50235 transitions. [2018-09-18 11:23:10,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2018-09-18 11:23:10,647 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:23:10,647 INFO L376 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:23:10,648 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:23:10,648 INFO L82 PathProgramCache]: Analyzing trace with hash -338754123, now seen corresponding path program 1 times [2018-09-18 11:23:10,648 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:23:10,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:23:10,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:23:10,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:23:10,649 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:23:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:23:11,623 INFO L134 CoverageAnalysis]: Checked inductivity of 2368 backedges. 726 proven. 307 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2018-09-18 11:23:11,623 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:23:11,623 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:23:11,633 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:23:11,633 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:23:11,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:23:11,858 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:23:12,272 INFO L134 CoverageAnalysis]: Checked inductivity of 2368 backedges. 1651 proven. 2 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2018-09-18 11:23:12,272 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:23:12,678 INFO L134 CoverageAnalysis]: Checked inductivity of 2368 backedges. 726 proven. 307 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2018-09-18 11:23:12,698 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:23:12,699 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 19 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:23:12,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:23:12,822 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:23:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:23:13,356 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:23:13,687 INFO L134 CoverageAnalysis]: Checked inductivity of 2368 backedges. 1651 proven. 2 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2018-09-18 11:23:13,688 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:23:14,108 INFO L134 CoverageAnalysis]: Checked inductivity of 2368 backedges. 726 proven. 307 refuted. 0 times theorem prover too weak. 1335 trivial. 0 not checked. [2018-09-18 11:23:14,112 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:23:14,113 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-18 11:23:14,113 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:23:14,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-18 11:23:14,114 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-18 11:23:14,115 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:23:14,115 INFO L87 Difference]: Start difference. First operand 41142 states and 50235 transitions. Second operand 8 states. [2018-09-18 11:23:18,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:23:18,764 INFO L93 Difference]: Finished difference Result 94632 states and 123909 transitions. [2018-09-18 11:23:18,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-18 11:23:18,765 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 816 [2018-09-18 11:23:18,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:23:18,954 INFO L225 Difference]: With dead ends: 94632 [2018-09-18 11:23:18,955 INFO L226 Difference]: Without dead ends: 53876 [2018-09-18 11:23:19,051 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3274 GetRequests, 3260 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2018-09-18 11:23:19,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53876 states. [2018-09-18 11:23:20,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53876 to 53593. [2018-09-18 11:23:20,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53593 states. [2018-09-18 11:23:20,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53593 states to 53593 states and 69186 transitions. [2018-09-18 11:23:20,273 INFO L78 Accepts]: Start accepts. Automaton has 53593 states and 69186 transitions. Word has length 816 [2018-09-18 11:23:20,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:23:20,273 INFO L480 AbstractCegarLoop]: Abstraction has 53593 states and 69186 transitions. [2018-09-18 11:23:20,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-18 11:23:20,273 INFO L276 IsEmpty]: Start isEmpty. Operand 53593 states and 69186 transitions. [2018-09-18 11:23:20,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2018-09-18 11:23:20,454 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:23:20,455 INFO L376 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:23:20,455 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:23:20,455 INFO L82 PathProgramCache]: Analyzing trace with hash -116723281, now seen corresponding path program 1 times [2018-09-18 11:23:20,456 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:23:20,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:23:20,456 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:23:20,456 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:23:20,457 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:23:20,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:23:21,236 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2018-09-18 11:23:22,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2488 backedges. 504 proven. 966 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2018-09-18 11:23:22,314 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:23:22,315 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:23:22,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:23:22,329 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:23:22,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:23:22,556 INFO L273 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2018-09-18 11:23:26,759 WARN L178 SmtUtils]: Spent 4.04 s on a formula simplification that was a NOOP. DAG size: 40 [2018-09-18 11:23:26,760 INFO L177 TraceCheckSpWp]: Timeout while computing interpolants [2018-09-18 11:23:26,961 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:23:26,962 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 11:23:26,967 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 11:23:26,967 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 11:23:26 BoogieIcfgContainer [2018-09-18 11:23:26,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 11:23:26,968 INFO L168 Benchmark]: Toolchain (without parser) took 237636.13 ms. Allocated memory was 1.5 GB in the beginning and 3.9 GB in the end (delta: 2.4 GB). Free memory was 1.4 GB in the beginning and 2.4 GB in the end (delta: -975.8 MB). Peak memory consumption was 1.4 GB. Max. memory is 7.1 GB. [2018-09-18 11:23:26,969 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. [2018-09-18 11:23:26,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 961.94 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: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 7.1 GB. [2018-09-18 11:23:26,970 INFO L168 Benchmark]: Boogie Procedure Inliner took 188.66 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-18 11:23:26,971 INFO L168 Benchmark]: Boogie Preprocessor took 389.36 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 807.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -930.5 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. [2018-09-18 11:23:26,972 INFO L168 Benchmark]: RCFGBuilder took 4426.27 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 172.8 MB). Peak memory consumption was 172.8 MB. Max. memory is 7.1 GB. [2018-09-18 11:23:26,972 INFO L168 Benchmark]: TraceAbstraction took 231663.49 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -315.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-18 11:23:26,977 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 961.94 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: 76.6 MB). Peak memory consumption was 76.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 188.66 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 389.36 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 807.4 MB). Free memory was 1.3 GB in the beginning and 2.2 GB in the end (delta: -930.5 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 4426.27 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 172.8 MB). Peak memory consumption was 172.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 231663.49 ms. Allocated memory was 2.3 GB in the beginning and 3.9 GB in the end (delta: 1.6 GB). Free memory was 2.1 GB in the beginning and 2.4 GB in the end (delta: -315.9 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 168]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 168). Cancelled while BasicCegarLoop was analyzing trace of length 831 with TraceHistMax 8, while TraceCheckSpWp was constructing forward predicates, while XnfDer was eliminating 1 quantified variables from 3 xjuncts. - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 293 locations, 1 error locations. TIMEOUT Result, 231.5s OverallTime, 14 OverallIterations, 8 TraceHistogramMax, 175.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2606 SDtfs, 41540 SDslu, 4836 SDs, 0 SdLazy, 57459 SolverSat, 15421 SolverUnsat, 37 SolverUnknown, 0 SolverNotchecked, 128.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18917 GetRequests, 18441 SyntacticMatches, 42 SemanticMatches, 434 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12053 ImplicationChecksByTransitivity, 34.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53593occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 11.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 10079 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.6s SsaConstructionTime, 4.4s SatisfiabilityAnalysisTime, 28.3s InterpolantComputationTime, 14462 NumberOfCodeBlocks, 14462 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 23578 ConstructedInterpolants, 10 QuantifiedInterpolants, 44809334 SizeOfPredicates, 18 NumberOfNonLiveVariables, 14291 ConjunctsInSsa, 153 ConjunctsInUnsatCore, 49 InterpolantComputations, 6 PerfectInterpolantSequences, 35441/39252 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem11_label02_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_11-23-26-993.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem11_label02_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_11-23-26-993.csv Completed graceful shutdown