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/Problem15_label17_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:54:36,253 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:54:36,255 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:54:36,267 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:54:36,267 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:54:36,268 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:54:36,270 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:54:36,272 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:54:36,273 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:54:36,274 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:54:36,275 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:54:36,275 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:54:36,276 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:54:36,277 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:54:36,278 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:54:36,279 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:54:36,280 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:54:36,282 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:54:36,284 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:54:36,289 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:54:36,290 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:54:36,295 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:54:36,297 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 11:54:36,298 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 11:54:36,298 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 11:54:36,299 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 11:54:36,303 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 11:54:36,304 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 11:54:36,305 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 11:54:36,306 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 11:54:36,306 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 11:54:36,307 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 11:54:36,307 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 11:54:36,307 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 11:54:36,308 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 11:54:36,309 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 11:54:36,309 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 11:54:36,326 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:54:36,326 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:54:36,327 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:54:36,327 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:54:36,328 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:54:36,328 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:54:36,329 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:54:36,329 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:54:36,329 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:54:36,329 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:54:36,329 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:54:36,329 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:54:36,330 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:54:36,331 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:54:36,331 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:54:36,331 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:54:36,332 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:54:36,332 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:54:36,332 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:54:36,332 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:54:36,332 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:54:36,333 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:54:36,333 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:54:36,333 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:54:36,333 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:54:36,334 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:54:36,334 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:54:36,334 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:54:36,334 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:54:36,334 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:54:36,335 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:54:36,335 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:54:36,335 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:54:36,335 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:54:36,389 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:54:36,406 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:54:36,411 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:54:36,413 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:54:36,413 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:54:36,414 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label17_true-unreach-call.c [2018-09-18 11:54:36,826 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba9d6581/50fe8c028aac48bc946d625ab8fd1f18/FLAG35d1bc01a [2018-09-18 11:54:37,195 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:54:37,196 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label17_true-unreach-call.c [2018-09-18 11:54:37,220 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba9d6581/50fe8c028aac48bc946d625ab8fd1f18/FLAG35d1bc01a [2018-09-18 11:54:37,241 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ba9d6581/50fe8c028aac48bc946d625ab8fd1f18 [2018-09-18 11:54:37,254 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:54:37,259 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:54:37,260 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:54:37,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:54:37,270 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:54:37,271 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:54:37" (1/1) ... [2018-09-18 11:54:37,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6652310c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:37, skipping insertion in model container [2018-09-18 11:54:37,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:54:37" (1/1) ... [2018-09-18 11:54:37,289 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:54:38,056 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:54:38,074 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:54:38,327 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:54:38,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:38 WrapperNode [2018-09-18 11:54:38,486 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:54:38,488 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:54:38,488 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:54:38,488 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:54:38,499 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:38" (1/1) ... [2018-09-18 11:54:38,564 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:38" (1/1) ... [2018-09-18 11:54:38,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:54:38,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:54:38,856 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:54:38,856 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:54:39,291 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:38" (1/1) ... [2018-09-18 11:54:39,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:38" (1/1) ... [2018-09-18 11:54:39,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:38" (1/1) ... [2018-09-18 11:54:39,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:38" (1/1) ... [2018-09-18 11:54:39,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:38" (1/1) ... [2018-09-18 11:54:39,418 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:38" (1/1) ... [2018-09-18 11:54:39,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:38" (1/1) ... [2018-09-18 11:54:39,466 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:54:39,467 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:54:39,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:54:39,468 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:54:39,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:38" (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 11:54:39,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:54:39,544 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:54:39,544 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 11:54:39,544 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 11:54:39,545 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:54:39,545 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:54:39,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:54:39,545 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:54:39,545 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:54:39,546 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:54:47,438 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:54:47,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:54:47 BoogieIcfgContainer [2018-09-18 11:54:47,439 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:54:47,440 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:54:47,440 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:54:47,443 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:54:47,443 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:54:37" (1/3) ... [2018-09-18 11:54:47,445 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d479be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:54:47, skipping insertion in model container [2018-09-18 11:54:47,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:38" (2/3) ... [2018-09-18 11:54:47,446 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d479be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:54:47, skipping insertion in model container [2018-09-18 11:54:47,446 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:54:47" (3/3) ... [2018-09-18 11:54:47,448 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label17_true-unreach-call.c [2018-09-18 11:54:47,456 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:54:47,465 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:54:47,523 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:54:47,524 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:54:47,524 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:54:47,524 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:54:47,524 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:54:47,524 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:54:47,524 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:54:47,525 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:54:47,525 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:54:47,556 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-18 11:54:47,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-09-18 11:54:47,571 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:54:47,574 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:54:47,575 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:54:47,580 INFO L82 PathProgramCache]: Analyzing trace with hash -466459612, now seen corresponding path program 1 times [2018-09-18 11:54:47,583 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:54:47,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:54:47,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:54:47,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:54:47,637 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:54:47,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:54:48,169 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 9 DAG size of output: 5 [2018-09-18 11:54:48,232 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 11:54:48,234 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:54:48,235 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:54:48,235 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:54:48,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:54:48,257 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:54:48,258 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:54:48,261 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 4 states. [2018-09-18 11:54:59,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:54:59,574 INFO L93 Difference]: Finished difference Result 1514 states and 2777 transitions. [2018-09-18 11:54:59,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:54:59,577 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 70 [2018-09-18 11:54:59,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:54:59,605 INFO L225 Difference]: With dead ends: 1514 [2018-09-18 11:54:59,608 INFO L226 Difference]: Without dead ends: 1070 [2018-09-18 11:54:59,621 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 11:54:59,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2018-09-18 11:54:59,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1068. [2018-09-18 11:54:59,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1068 states. [2018-09-18 11:54:59,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1675 transitions. [2018-09-18 11:54:59,758 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1675 transitions. Word has length 70 [2018-09-18 11:54:59,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:54:59,759 INFO L480 AbstractCegarLoop]: Abstraction has 1068 states and 1675 transitions. [2018-09-18 11:54:59,759 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:54:59,760 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1675 transitions. [2018-09-18 11:54:59,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2018-09-18 11:54:59,769 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:54:59,769 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, 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] [2018-09-18 11:54:59,770 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:54:59,770 INFO L82 PathProgramCache]: Analyzing trace with hash 608103471, now seen corresponding path program 1 times [2018-09-18 11:54:59,770 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:54:59,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:54:59,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:54:59,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:54:59,772 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:54:59,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:55:00,020 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:55:00,020 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:55:00,021 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:55:00,021 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:55:00,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:55:00,023 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:55:00,024 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:55:00,024 INFO L87 Difference]: Start difference. First operand 1068 states and 1675 transitions. Second operand 4 states. [2018-09-18 11:55:06,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:55:06,501 INFO L93 Difference]: Finished difference Result 3989 states and 6445 transitions. [2018-09-18 11:55:06,511 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:55:06,512 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 140 [2018-09-18 11:55:06,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:55:06,534 INFO L225 Difference]: With dead ends: 3989 [2018-09-18 11:55:06,534 INFO L226 Difference]: Without dead ends: 2927 [2018-09-18 11:55:06,544 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 11:55:06,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2018-09-18 11:55:06,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 2925. [2018-09-18 11:55:06,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2925 states. [2018-09-18 11:55:06,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 4174 transitions. [2018-09-18 11:55:06,651 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 4174 transitions. Word has length 140 [2018-09-18 11:55:06,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:55:06,652 INFO L480 AbstractCegarLoop]: Abstraction has 2925 states and 4174 transitions. [2018-09-18 11:55:06,652 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:55:06,653 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 4174 transitions. [2018-09-18 11:55:06,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-09-18 11:55:06,667 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:55:06,668 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, 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, 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 11:55:06,669 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:55:06,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1294046763, now seen corresponding path program 1 times [2018-09-18 11:55:06,669 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:55:06,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:06,670 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:55:06,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:06,671 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:55:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:55:07,123 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 127 proven. 77 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2018-09-18 11:55:07,124 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:55:07,124 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 11:55:07,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:55:07,133 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:55:07,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:55:07,268 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:55:07,581 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 127 proven. 2 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-09-18 11:55:07,581 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:55:08,695 INFO L134 CoverageAnalysis]: Checked inductivity of 210 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-09-18 11:55:08,716 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:55:08,717 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 5] total 9 [2018-09-18 11:55:08,717 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:55:08,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:55:08,718 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:55:08,719 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:55:08,719 INFO L87 Difference]: Start difference. First operand 2925 states and 4174 transitions. Second operand 5 states. [2018-09-18 11:55:15,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:55:15,289 INFO L93 Difference]: Finished difference Result 8371 states and 12203 transitions. [2018-09-18 11:55:15,289 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-18 11:55:15,289 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 250 [2018-09-18 11:55:15,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:55:15,324 INFO L225 Difference]: With dead ends: 8371 [2018-09-18 11:55:15,324 INFO L226 Difference]: Without dead ends: 5452 [2018-09-18 11:55:15,340 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 498 SyntacticMatches, 3 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2018-09-18 11:55:15,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5452 states. [2018-09-18 11:55:15,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5452 to 5452. [2018-09-18 11:55:15,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5452 states. [2018-09-18 11:55:15,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5452 states to 5452 states and 7305 transitions. [2018-09-18 11:55:15,524 INFO L78 Accepts]: Start accepts. Automaton has 5452 states and 7305 transitions. Word has length 250 [2018-09-18 11:55:15,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:55:15,525 INFO L480 AbstractCegarLoop]: Abstraction has 5452 states and 7305 transitions. [2018-09-18 11:55:15,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:55:15,525 INFO L276 IsEmpty]: Start isEmpty. Operand 5452 states and 7305 transitions. [2018-09-18 11:55:15,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2018-09-18 11:55:15,553 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:55:15,553 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:55:15,554 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:55:15,554 INFO L82 PathProgramCache]: Analyzing trace with hash 1776743063, now seen corresponding path program 1 times [2018-09-18 11:55:15,554 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:55:15,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:15,555 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:55:15,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:15,555 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:55:15,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:55:16,384 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 354 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-09-18 11:55:16,384 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:55:16,384 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 11:55:16,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:55:16,403 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:55:16,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:55:16,550 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:55:17,017 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 354 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-09-18 11:55:17,017 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:55:17,455 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 354 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-09-18 11:55:17,477 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:55:17,477 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 11:55:17,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:55:17,505 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:55:17,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:55:17,789 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:55:18,057 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 354 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-09-18 11:55:18,057 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:55:18,298 INFO L134 CoverageAnalysis]: Checked inductivity of 434 backedges. 354 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-09-18 11:55:18,300 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:55:18,300 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 12 [2018-09-18 11:55:18,300 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:55:18,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:55:18,302 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:55:18,302 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:55:18,302 INFO L87 Difference]: Start difference. First operand 5452 states and 7305 transitions. Second operand 9 states. [2018-09-18 11:55:28,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:55:28,955 INFO L93 Difference]: Finished difference Result 16644 states and 24451 transitions. [2018-09-18 11:55:28,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2018-09-18 11:55:28,955 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 435 [2018-09-18 11:55:28,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:55:29,045 INFO L225 Difference]: With dead ends: 16644 [2018-09-18 11:55:29,046 INFO L226 Difference]: Without dead ends: 11198 [2018-09-18 11:55:29,134 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1774 GetRequests, 1744 SyntacticMatches, 5 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=218, Invalid=484, Unknown=0, NotChecked=0, Total=702 [2018-09-18 11:55:29,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11198 states. [2018-09-18 11:55:29,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11198 to 10476. [2018-09-18 11:55:29,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10476 states. [2018-09-18 11:55:29,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10476 states to 10476 states and 13695 transitions. [2018-09-18 11:55:29,538 INFO L78 Accepts]: Start accepts. Automaton has 10476 states and 13695 transitions. Word has length 435 [2018-09-18 11:55:29,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:55:29,539 INFO L480 AbstractCegarLoop]: Abstraction has 10476 states and 13695 transitions. [2018-09-18 11:55:29,539 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:55:29,539 INFO L276 IsEmpty]: Start isEmpty. Operand 10476 states and 13695 transitions. [2018-09-18 11:55:29,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2018-09-18 11:55:29,572 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:55:29,573 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:55:29,573 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:55:29,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1531863587, now seen corresponding path program 1 times [2018-09-18 11:55:29,573 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:55:29,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:29,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:55:29,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:29,575 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:55:29,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:55:30,498 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 277 proven. 82 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-09-18 11:55:30,498 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:55:30,498 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:55:30,509 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:55:30,509 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:55:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:55:30,632 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:55:30,788 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 15 DAG size of output: 3 [2018-09-18 11:55:30,857 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2018-09-18 11:55:30,857 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:55:30,981 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 197 proven. 2 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2018-09-18 11:55:31,002 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:55:31,003 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 3] total 7 [2018-09-18 11:55:31,003 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:55:31,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:55:31,004 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:55:31,004 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-18 11:55:31,004 INFO L87 Difference]: Start difference. First operand 10476 states and 13695 transitions. Second operand 3 states. [2018-09-18 11:55:34,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:55:34,788 INFO L93 Difference]: Finished difference Result 29437 states and 41366 transitions. [2018-09-18 11:55:34,792 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:55:34,792 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 441 [2018-09-18 11:55:34,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:55:35,190 INFO L225 Difference]: With dead ends: 29437 [2018-09-18 11:55:35,190 INFO L226 Difference]: Without dead ends: 19027 [2018-09-18 11:55:35,308 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 887 GetRequests, 882 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-09-18 11:55:35,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19027 states. [2018-09-18 11:55:35,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19027 to 18702. [2018-09-18 11:55:35,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18702 states. [2018-09-18 11:55:35,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18702 states to 18702 states and 25645 transitions. [2018-09-18 11:55:35,961 INFO L78 Accepts]: Start accepts. Automaton has 18702 states and 25645 transitions. Word has length 441 [2018-09-18 11:55:35,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:55:35,961 INFO L480 AbstractCegarLoop]: Abstraction has 18702 states and 25645 transitions. [2018-09-18 11:55:35,962 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:55:35,962 INFO L276 IsEmpty]: Start isEmpty. Operand 18702 states and 25645 transitions. [2018-09-18 11:55:36,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2018-09-18 11:55:36,014 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:55:36,015 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, 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:55:36,015 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:55:36,015 INFO L82 PathProgramCache]: Analyzing trace with hash -868769823, now seen corresponding path program 1 times [2018-09-18 11:55:36,016 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:55:36,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:36,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:55:36,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:36,018 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:55:36,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:55:36,805 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 277 proven. 82 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-09-18 11:55:36,806 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:55:36,806 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 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:55:36,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:55:36,823 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:55:36,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:55:36,967 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:55:37,447 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 374 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-09-18 11:55:37,447 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:55:38,485 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 277 proven. 82 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-09-18 11:55:38,510 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:55:38,510 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 7 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 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:55:38,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:55:38,526 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:55:38,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:55:38,797 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:55:39,285 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 374 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-09-18 11:55:39,286 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:55:39,508 INFO L134 CoverageAnalysis]: Checked inductivity of 440 backedges. 277 proven. 82 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2018-09-18 11:55:39,509 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:55:39,510 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-18 11:55:39,510 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:55:39,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:55:39,511 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:55:39,511 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:55:39,512 INFO L87 Difference]: Start difference. First operand 18702 states and 25645 transitions. Second operand 9 states. [2018-09-18 11:55:47,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:55:47,975 INFO L93 Difference]: Finished difference Result 41594 states and 58930 transitions. [2018-09-18 11:55:47,976 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-18 11:55:47,976 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 441 [2018-09-18 11:55:47,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:55:48,110 INFO L225 Difference]: With dead ends: 41594 [2018-09-18 11:55:48,110 INFO L226 Difference]: Without dead ends: 22977 [2018-09-18 11:55:48,541 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1790 GetRequests, 1764 SyntacticMatches, 6 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=146, Invalid=316, Unknown=0, NotChecked=0, Total=462 [2018-09-18 11:55:48,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22977 states. [2018-09-18 11:55:49,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22977 to 22781. [2018-09-18 11:55:49,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22781 states. [2018-09-18 11:55:49,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22781 states to 22781 states and 29084 transitions. [2018-09-18 11:55:49,160 INFO L78 Accepts]: Start accepts. Automaton has 22781 states and 29084 transitions. Word has length 441 [2018-09-18 11:55:49,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:55:49,160 INFO L480 AbstractCegarLoop]: Abstraction has 22781 states and 29084 transitions. [2018-09-18 11:55:49,160 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:55:49,161 INFO L276 IsEmpty]: Start isEmpty. Operand 22781 states and 29084 transitions. [2018-09-18 11:55:49,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 513 [2018-09-18 11:55:49,195 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:55:49,196 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, 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, 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 11:55:49,196 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:55:49,197 INFO L82 PathProgramCache]: Analyzing trace with hash -2062599787, now seen corresponding path program 1 times [2018-09-18 11:55:49,197 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:55:49,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:49,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:55:49,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:49,198 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:55:49,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:55:49,626 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2018-09-18 11:55:49,626 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:55:49,626 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 11:55:49,626 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:55:49,627 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:55:49,627 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:55:49,628 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:55:49,628 INFO L87 Difference]: Start difference. First operand 22781 states and 29084 transitions. Second operand 3 states. [2018-09-18 11:55:55,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:55:55,057 INFO L93 Difference]: Finished difference Result 45786 states and 58793 transitions. [2018-09-18 11:55:55,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:55:55,057 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 512 [2018-09-18 11:55:55,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:55:55,160 INFO L225 Difference]: With dead ends: 45786 [2018-09-18 11:55:55,160 INFO L226 Difference]: Without dead ends: 23090 [2018-09-18 11:55:55,246 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 11:55:55,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23090 states. [2018-09-18 11:55:55,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23090 to 22777. [2018-09-18 11:55:55,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22777 states. [2018-09-18 11:55:55,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22777 states to 22777 states and 29063 transitions. [2018-09-18 11:55:55,749 INFO L78 Accepts]: Start accepts. Automaton has 22777 states and 29063 transitions. Word has length 512 [2018-09-18 11:55:55,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:55:55,750 INFO L480 AbstractCegarLoop]: Abstraction has 22777 states and 29063 transitions. [2018-09-18 11:55:55,750 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:55:55,751 INFO L276 IsEmpty]: Start isEmpty. Operand 22777 states and 29063 transitions. [2018-09-18 11:55:55,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2018-09-18 11:55:55,785 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:55:55,786 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:55:55,786 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:55:55,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1791773807, now seen corresponding path program 1 times [2018-09-18 11:55:55,787 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:55:55,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:55,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:55:55,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:55,789 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:55:55,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:55:57,143 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 191 proven. 15 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2018-09-18 11:55:57,144 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:55:57,144 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 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:55:57,152 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:55:57,152 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:55:57,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:55:57,304 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:55:57,740 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 270 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2018-09-18 11:55:57,740 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:55:59,218 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 189 proven. 199 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-09-18 11:55:59,239 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:55:59,240 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [7, 5] total 12 [2018-09-18 11:55:59,240 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:55:59,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:55:59,241 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:55:59,241 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:55:59,241 INFO L87 Difference]: Start difference. First operand 22777 states and 29063 transitions. Second operand 5 states. [2018-09-18 11:56:07,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:56:07,784 INFO L93 Difference]: Finished difference Result 49029 states and 63714 transitions. [2018-09-18 11:56:07,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:56:07,797 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 533 [2018-09-18 11:56:07,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:56:07,918 INFO L225 Difference]: With dead ends: 49029 [2018-09-18 11:56:07,919 INFO L226 Difference]: Without dead ends: 26263 [2018-09-18 11:56:08,034 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1078 GetRequests, 1062 SyntacticMatches, 4 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2018-09-18 11:56:08,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26263 states. [2018-09-18 11:56:08,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26263 to 25606. [2018-09-18 11:56:08,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25606 states. [2018-09-18 11:56:08,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25606 states to 25606 states and 32448 transitions. [2018-09-18 11:56:08,584 INFO L78 Accepts]: Start accepts. Automaton has 25606 states and 32448 transitions. Word has length 533 [2018-09-18 11:56:08,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:56:08,584 INFO L480 AbstractCegarLoop]: Abstraction has 25606 states and 32448 transitions. [2018-09-18 11:56:08,585 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:56:08,585 INFO L276 IsEmpty]: Start isEmpty. Operand 25606 states and 32448 transitions. [2018-09-18 11:56:08,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 569 [2018-09-18 11:56:08,602 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:56:08,602 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:56:08,603 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:56:08,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1298296717, now seen corresponding path program 1 times [2018-09-18 11:56:08,603 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:56:08,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:56:08,604 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:56:08,604 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:56:08,604 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:56:08,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:56:09,094 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 317 proven. 83 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-09-18 11:56:09,095 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:56:09,095 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 11:56:09,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:56:09,102 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:56:09,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:56:09,265 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:56:10,206 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 416 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-09-18 11:56:10,207 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:56:10,414 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-18 11:56:10,627 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 317 proven. 83 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-09-18 11:56:10,649 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:56:10,649 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 11:56:10,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:56:10,668 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:56:10,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:56:10,992 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:56:11,147 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 416 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2018-09-18 11:56:11,147 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:56:11,371 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 317 proven. 83 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-09-18 11:56:11,374 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:56:11,374 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-18 11:56:11,374 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:56:11,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:56:11,377 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:56:11,377 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:56:11,378 INFO L87 Difference]: Start difference. First operand 25606 states and 32448 transitions. Second operand 9 states. [2018-09-18 11:56:18,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:56:18,473 INFO L93 Difference]: Finished difference Result 52412 states and 68288 transitions. [2018-09-18 11:56:18,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-18 11:56:18,473 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 568 [2018-09-18 11:56:18,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:56:18,595 INFO L225 Difference]: With dead ends: 52412 [2018-09-18 11:56:18,595 INFO L226 Difference]: Without dead ends: 27139 [2018-09-18 11:56:18,723 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2302 GetRequests, 2274 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2018-09-18 11:56:18,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27139 states. [2018-09-18 11:56:19,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27139 to 26581. [2018-09-18 11:56:19,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26581 states. [2018-09-18 11:56:19,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26581 states to 26581 states and 32481 transitions. [2018-09-18 11:56:19,293 INFO L78 Accepts]: Start accepts. Automaton has 26581 states and 32481 transitions. Word has length 568 [2018-09-18 11:56:19,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:56:19,294 INFO L480 AbstractCegarLoop]: Abstraction has 26581 states and 32481 transitions. [2018-09-18 11:56:19,294 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:56:19,294 INFO L276 IsEmpty]: Start isEmpty. Operand 26581 states and 32481 transitions. [2018-09-18 11:56:19,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2018-09-18 11:56:19,309 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:56:19,309 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:56:19,310 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:56:19,310 INFO L82 PathProgramCache]: Analyzing trace with hash -359991384, now seen corresponding path program 1 times [2018-09-18 11:56:19,310 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:56:19,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:56:19,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:56:19,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:56:19,311 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:56:19,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:56:20,901 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 356 proven. 371 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-09-18 11:56:20,902 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:56:20,902 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 11:56:20,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:56:20,910 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:56:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:56:21,108 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:56:22,041 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 568 proven. 41 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2018-09-18 11:56:22,041 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:56:23,221 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 267 proven. 460 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-09-18 11:56:23,243 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:56:23,243 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:56:23,258 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:56:23,258 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:56:23,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:56:23,662 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:56:24,621 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 518 proven. 41 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2018-09-18 11:56:24,622 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:56:25,637 INFO L134 CoverageAnalysis]: Checked inductivity of 821 backedges. 267 proven. 460 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-09-18 11:56:25,640 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:56:25,640 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9, 8, 9] total 23 [2018-09-18 11:56:25,640 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:56:25,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-18 11:56:25,643 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-18 11:56:25,643 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=391, Unknown=0, NotChecked=0, Total=506 [2018-09-18 11:56:25,643 INFO L87 Difference]: Start difference. First operand 26581 states and 32481 transitions. Second operand 13 states. [2018-09-18 11:56:45,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:56:45,755 INFO L93 Difference]: Finished difference Result 65450 states and 81033 transitions. [2018-09-18 11:56:45,755 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2018-09-18 11:56:45,755 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 629 [2018-09-18 11:56:45,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:56:45,894 INFO L225 Difference]: With dead ends: 65450 [2018-09-18 11:56:45,895 INFO L226 Difference]: Without dead ends: 37603 [2018-09-18 11:56:46,002 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2571 GetRequests, 2525 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 533 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=490, Invalid=1580, Unknown=0, NotChecked=0, Total=2070 [2018-09-18 11:56:46,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37603 states. [2018-09-18 11:56:46,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37603 to 36990. [2018-09-18 11:56:46,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36990 states. [2018-09-18 11:56:46,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36990 states to 36990 states and 45027 transitions. [2018-09-18 11:56:46,793 INFO L78 Accepts]: Start accepts. Automaton has 36990 states and 45027 transitions. Word has length 629 [2018-09-18 11:56:46,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:56:46,794 INFO L480 AbstractCegarLoop]: Abstraction has 36990 states and 45027 transitions. [2018-09-18 11:56:46,794 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-18 11:56:46,794 INFO L276 IsEmpty]: Start isEmpty. Operand 36990 states and 45027 transitions. [2018-09-18 11:56:46,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 669 [2018-09-18 11:56:46,820 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:56:46,820 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, 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, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:56:46,821 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:56:46,821 INFO L82 PathProgramCache]: Analyzing trace with hash -478597837, now seen corresponding path program 1 times [2018-09-18 11:56:46,821 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:56:46,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:56:46,822 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:56:46,822 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:56:46,822 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:56:46,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:56:47,759 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 273 proven. 462 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2018-09-18 11:56:47,759 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:56:47,759 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:56:47,766 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:56:47,766 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:56:47,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:56:47,951 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:56:48,398 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 508 proven. 2 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2018-09-18 11:56:48,398 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:56:48,756 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 508 proven. 2 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2018-09-18 11:56:48,779 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:56:48,779 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:56:48,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:56:48,794 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:56:49,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:56:49,228 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:56:49,612 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 508 proven. 2 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2018-09-18 11:56:49,612 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:56:49,892 INFO L134 CoverageAnalysis]: Checked inductivity of 853 backedges. 508 proven. 2 refuted. 0 times theorem prover too weak. 343 trivial. 0 not checked. [2018-09-18 11:56:49,894 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:56:49,895 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5, 5, 5, 5] total 13 [2018-09-18 11:56:49,895 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:56:49,896 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-18 11:56:49,896 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-18 11:56:49,896 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-09-18 11:56:49,896 INFO L87 Difference]: Start difference. First operand 36990 states and 45027 transitions. Second operand 12 states. [2018-09-18 11:57:18,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:57:18,373 INFO L93 Difference]: Finished difference Result 128933 states and 164789 transitions. [2018-09-18 11:57:18,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2018-09-18 11:57:18,381 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 668 [2018-09-18 11:57:18,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:57:18,756 INFO L225 Difference]: With dead ends: 128933 [2018-09-18 11:57:18,757 INFO L226 Difference]: Without dead ends: 92367 [2018-09-18 11:57:19,034 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2778 GetRequests, 2712 SyntacticMatches, 5 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1310 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=725, Invalid=3181, Unknown=0, NotChecked=0, Total=3906 [2018-09-18 11:57:19,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92367 states. [2018-09-18 11:57:20,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92367 to 80329. [2018-09-18 11:57:20,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80329 states. [2018-09-18 11:57:21,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80329 states to 80329 states and 95919 transitions. [2018-09-18 11:57:21,170 INFO L78 Accepts]: Start accepts. Automaton has 80329 states and 95919 transitions. Word has length 668 [2018-09-18 11:57:21,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:57:21,170 INFO L480 AbstractCegarLoop]: Abstraction has 80329 states and 95919 transitions. [2018-09-18 11:57:21,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-09-18 11:57:21,171 INFO L276 IsEmpty]: Start isEmpty. Operand 80329 states and 95919 transitions. [2018-09-18 11:57:21,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 711 [2018-09-18 11:57:21,202 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:57:21,202 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 11:57:21,203 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:57:21,203 INFO L82 PathProgramCache]: Analyzing trace with hash -1427960617, now seen corresponding path program 1 times [2018-09-18 11:57:21,203 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:57:21,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:57:21,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:57:21,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:57:21,204 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:57:21,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:57:21,945 INFO L134 CoverageAnalysis]: Checked inductivity of 664 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 469 trivial. 0 not checked. [2018-09-18 11:57:21,946 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:57:21,946 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 11:57:21,946 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:57:21,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:57:21,947 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:57:21,947 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:57:21,947 INFO L87 Difference]: Start difference. First operand 80329 states and 95919 transitions. Second operand 5 states. [2018-09-18 11:57:31,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:57:31,125 INFO L93 Difference]: Finished difference Result 207421 states and 249753 transitions. [2018-09-18 11:57:31,125 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-18 11:57:31,125 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 710 [2018-09-18 11:57:31,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:57:31,583 INFO L225 Difference]: With dead ends: 207421 [2018-09-18 11:57:31,583 INFO L226 Difference]: Without dead ends: 129580 [2018-09-18 11:57:31,880 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:57:31,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129580 states. [2018-09-18 11:57:33,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129580 to 126959. [2018-09-18 11:57:33,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126959 states. [2018-09-18 11:57:34,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126959 states to 126959 states and 148564 transitions. [2018-09-18 11:57:34,346 INFO L78 Accepts]: Start accepts. Automaton has 126959 states and 148564 transitions. Word has length 710 [2018-09-18 11:57:34,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:57:34,346 INFO L480 AbstractCegarLoop]: Abstraction has 126959 states and 148564 transitions. [2018-09-18 11:57:34,346 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:57:34,347 INFO L276 IsEmpty]: Start isEmpty. Operand 126959 states and 148564 transitions. [2018-09-18 11:57:34,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 740 [2018-09-18 11:57:34,381 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:57:34,382 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:57:34,382 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:57:34,382 INFO L82 PathProgramCache]: Analyzing trace with hash -632255730, now seen corresponding path program 1 times [2018-09-18 11:57:34,383 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:57:34,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:57:34,383 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:57:34,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:57:34,384 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:57:34,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:57:36,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1067 backedges. 441 proven. 532 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-09-18 11:57:36,888 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:57:36,888 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:57:36,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:57:36,896 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:57:37,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:57:37,105 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:57:38,877 INFO L134 CoverageAnalysis]: Checked inductivity of 1067 backedges. 729 proven. 126 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2018-09-18 11:57:38,878 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:57:39,981 INFO L134 CoverageAnalysis]: Checked inductivity of 1067 backedges. 267 proven. 706 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-09-18 11:57:40,002 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:57:40,003 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 16 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 16 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:57:40,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:57:40,018 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:57:40,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:57:40,489 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:57:42,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1067 backedges. 679 proven. 126 refuted. 0 times theorem prover too weak. 262 trivial. 0 not checked. [2018-09-18 11:57:42,020 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:57:43,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1067 backedges. 267 proven. 706 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2018-09-18 11:57:43,653 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:57:43,654 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9, 8, 9] total 23 [2018-09-18 11:57:43,654 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:57:43,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-18 11:57:43,656 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-18 11:57:43,656 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=394, Unknown=0, NotChecked=0, Total=506 [2018-09-18 11:57:43,657 INFO L87 Difference]: Start difference. First operand 126959 states and 148564 transitions. Second operand 13 states. [2018-09-18 11:58:03,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:58:03,615 INFO L93 Difference]: Finished difference Result 259378 states and 304103 transitions. [2018-09-18 11:58:03,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2018-09-18 11:58:03,616 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 739 [2018-09-18 11:58:03,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:58:04,101 INFO L225 Difference]: With dead ends: 259378 [2018-09-18 11:58:04,101 INFO L226 Difference]: Without dead ends: 129916 [2018-09-18 11:58:04,488 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3013 GetRequests, 2963 SyntacticMatches, 5 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 569 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=506, Invalid=1656, Unknown=0, NotChecked=0, Total=2162 [2018-09-18 11:58:04,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129916 states. [2018-09-18 11:58:07,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129916 to 127439. [2018-09-18 11:58:07,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 127439 states. [2018-09-18 11:58:07,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127439 states to 127439 states and 148126 transitions. [2018-09-18 11:58:07,492 INFO L78 Accepts]: Start accepts. Automaton has 127439 states and 148126 transitions. Word has length 739 [2018-09-18 11:58:07,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:58:07,493 INFO L480 AbstractCegarLoop]: Abstraction has 127439 states and 148126 transitions. [2018-09-18 11:58:07,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-18 11:58:07,493 INFO L276 IsEmpty]: Start isEmpty. Operand 127439 states and 148126 transitions. [2018-09-18 11:58:07,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2018-09-18 11:58:07,545 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:58:07,545 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:58:07,546 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:58:07,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1469111637, now seen corresponding path program 1 times [2018-09-18 11:58:07,546 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:58:07,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:58:07,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:58:07,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:58:07,547 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:58:07,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:58:08,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 658 proven. 2 refuted. 0 times theorem prover too weak. 684 trivial. 0 not checked. [2018-09-18 11:58:08,693 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:58:08,693 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 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:58:08,708 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:58:08,709 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:58:08,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:58:08,931 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:58:10,021 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 911 proven. 6 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2018-09-18 11:58:10,021 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:58:10,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 913 proven. 4 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2018-09-18 11:58:10,539 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:58:10,539 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 18 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 18 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:58:10,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:58:10,557 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:58:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:58:11,041 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:58:11,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 911 proven. 6 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2018-09-18 11:58:11,566 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:58:12,096 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 913 proven. 4 refuted. 0 times theorem prover too weak. 427 trivial. 0 not checked. [2018-09-18 11:58:12,098 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:58:12,099 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6, 6, 6] total 11 [2018-09-18 11:58:12,099 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:58:12,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:58:12,100 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:58:12,100 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:58:12,101 INFO L87 Difference]: Start difference. First operand 127439 states and 148126 transitions. Second operand 9 states. [2018-09-18 11:58:26,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:58:26,820 INFO L93 Difference]: Finished difference Result 290760 states and 337524 transitions. [2018-09-18 11:58:26,820 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2018-09-18 11:58:26,820 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 785 [2018-09-18 11:58:26,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:58:26,953 INFO L225 Difference]: With dead ends: 290760 [2018-09-18 11:58:26,954 INFO L226 Difference]: Without dead ends: 54565 [2018-09-18 11:58:27,554 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3165 GetRequests, 3137 SyntacticMatches, 8 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=144, Invalid=318, Unknown=0, NotChecked=0, Total=462 [2018-09-18 11:58:27,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54565 states. [2018-09-18 11:58:28,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54565 to 45027. [2018-09-18 11:58:28,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45027 states. [2018-09-18 11:58:28,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45027 states to 45027 states and 48137 transitions. [2018-09-18 11:58:28,815 INFO L78 Accepts]: Start accepts. Automaton has 45027 states and 48137 transitions. Word has length 785 [2018-09-18 11:58:28,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:58:28,816 INFO L480 AbstractCegarLoop]: Abstraction has 45027 states and 48137 transitions. [2018-09-18 11:58:28,816 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:58:28,817 INFO L276 IsEmpty]: Start isEmpty. Operand 45027 states and 48137 transitions. [2018-09-18 11:58:28,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 856 [2018-09-18 11:58:28,833 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:58:28,833 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:58:28,833 INFO L423 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:58:28,834 INFO L82 PathProgramCache]: Analyzing trace with hash 2112222864, now seen corresponding path program 1 times [2018-09-18 11:58:28,834 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:58:28,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:58:28,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:58:28,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:58:28,835 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:58:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2018-09-18 11:58:29,311 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,312 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,312 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,312 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,312 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,313 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,313 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,313 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,314 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,314 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,314 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,314 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,315 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,315 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,315 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,316 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,316 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,316 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,316 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,317 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,317 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,317 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,318 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,318 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,318 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,323 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,323 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,324 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,324 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,325 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,325 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,325 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,326 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,326 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,326 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,327 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,327 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,327 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,328 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,328 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,328 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,328 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,329 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,329 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,329 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,329 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,330 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,330 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,330 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,331 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,331 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,332 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,332 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,333 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,333 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,333 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,337 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,338 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,338 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,338 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,339 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,339 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,339 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,340 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,340 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,340 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,340 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,341 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,341 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,341 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,342 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,342 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,342 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,343 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,343 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,343 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,344 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,344 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,344 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,345 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,345 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,345 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,346 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,346 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,346 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,347 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,347 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,347 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,348 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,348 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,348 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,348 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,349 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,349 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,349 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,350 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,350 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,350 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,357 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,357 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,357 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,358 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,358 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,361 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,362 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,362 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,363 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,363 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,363 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,366 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,367 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,367 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,368 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,368 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,368 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,368 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,369 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,369 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,371 WARN L250 erpolLogProxyWrapper]: Unable to check validity of interpolant: cancelled [2018-09-18 11:58:29,375 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 11:58:29,380 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 11:58:29,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 11:58:29 BoogieIcfgContainer [2018-09-18 11:58:29,381 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 11:58:29,382 INFO L168 Benchmark]: Toolchain (without parser) took 232127.02 ms. Allocated memory was 1.5 GB in the beginning and 3.7 GB in the end (delta: 2.2 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -586.2 MB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-09-18 11:58:29,384 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 11:58:29,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1226.98 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: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-09-18 11:58:29,385 INFO L168 Benchmark]: Boogie Procedure Inliner took 367.90 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. [2018-09-18 11:58:29,386 INFO L168 Benchmark]: Boogie Preprocessor took 611.01 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 864.6 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2018-09-18 11:58:29,387 INFO L168 Benchmark]: RCFGBuilder took 7971.79 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 299.2 MB). Peak memory consumption was 299.2 MB. Max. memory is 7.1 GB. [2018-09-18 11:58:29,387 INFO L168 Benchmark]: TraceAbstraction took 221941.04 ms. Allocated memory was 2.4 GB in the beginning and 3.7 GB in the end (delta: 1.3 GB). Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: -28.5 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-18 11:58:29,398 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1226.98 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: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 367.90 ms. Allocated memory is still 1.5 GB. Free memory was 1.3 GB in the beginning and 1.2 GB in the end (delta: 42.4 MB). Peak memory consumption was 42.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 611.01 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 864.6 MB). Free memory was 1.2 GB in the beginning and 2.3 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 7971.79 ms. Allocated memory is still 2.4 GB. Free memory was 2.3 GB in the beginning and 2.0 GB in the end (delta: 299.2 MB). Peak memory consumption was 299.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 221941.04 ms. Allocated memory was 2.4 GB in the beginning and 3.7 GB in the end (delta: 1.3 GB). Free memory was 2.0 GB in the beginning and 2.0 GB in the end (delta: -28.5 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: 196]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 196). Cancelled while BasicCegarLoop was analyzing trace of length 856 with TraceHistMax 5, while InterpolatingTraceCheckCraig was constructing Craig interpolants, while NestedInterpolantsBuilder was constructing predicates for 854 interpolants. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 221.8s OverallTime, 15 OverallIterations, 6 TraceHistogramMax, 166.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3099 SDtfs, 34659 SDslu, 4487 SDs, 0 SdLazy, 59015 SolverSat, 12067 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 129.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19887 GetRequests, 19573 SyntacticMatches, 44 SemanticMatches, 270 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2907 ImplicationChecksByTransitivity, 11.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127439occurred 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: 13.3s AutomataMinimizationTime, 14 MinimizatonAttempts, 30062 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.6s SsaConstructionTime, 4.5s SatisfiabilityAnalysisTime, 30.2s InterpolantComputationTime, 16675 NumberOfCodeBlocks, 16675 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 26381 ConstructedInterpolants, 2 QuantifiedInterpolants, 69373230 SizeOfPredicates, 42 NumberOfNonLiveVariables, 13871 ConjunctsInSsa, 168 ConjunctsInUnsatCore, 48 InterpolantComputations, 7 PerfectInterpolantSequences, 26917/31868 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/Problem15_label17_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_11-58-29-424.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label17_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_11-58-29-424.csv Completed graceful shutdown