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_label12_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:54:04,258 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:54:04,261 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:54:04,278 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:54:04,278 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:54:04,280 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:54:04,281 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:54:04,284 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:54:04,288 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:54:04,289 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:54:04,290 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:54:04,290 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:54:04,293 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:54:04,294 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:54:04,295 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:54:04,304 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:54:04,305 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:54:04,310 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:54:04,312 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:54:04,313 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:54:04,314 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:54:04,315 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:54:04,318 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 11:54:04,318 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 11:54:04,318 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 11:54:04,319 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 11:54:04,320 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 11:54:04,321 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 11:54:04,321 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 11:54:04,322 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 11:54:04,323 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 11:54:04,323 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 11:54:04,323 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 11:54:04,324 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 11:54:04,325 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 11:54:04,325 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 11:54:04,326 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 11:54:04,341 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:54:04,341 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:54:04,342 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:54:04,342 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:54:04,342 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:54:04,342 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:54:04,343 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:54:04,343 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:54:04,343 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:54:04,343 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:54:04,343 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:54:04,343 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:54:04,344 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:54:04,344 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:54:04,345 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:54:04,345 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:54:04,345 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:54:04,345 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:54:04,345 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:54:04,346 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:54:04,346 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:54:04,346 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:54:04,346 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:54:04,346 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:54:04,347 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:54:04,347 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:54:04,347 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:54:04,347 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:54:04,347 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:54:04,347 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:54:04,348 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:54:04,348 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:54:04,348 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:54:04,348 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:54:04,390 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:54:04,403 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:54:04,406 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:54:04,408 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:54:04,409 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:54:04,409 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem15_label12_true-unreach-call.c [2018-09-18 11:54:04,768 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d5a2b14f/7e0708b6a0ee454c8a6a61a1db3040b3/FLAG1e0692a73 [2018-09-18 11:54:05,200 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:54:05,202 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem15_label12_true-unreach-call.c [2018-09-18 11:54:05,226 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d5a2b14f/7e0708b6a0ee454c8a6a61a1db3040b3/FLAG1e0692a73 [2018-09-18 11:54:05,250 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d5a2b14f/7e0708b6a0ee454c8a6a61a1db3040b3 [2018-09-18 11:54:05,261 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:54:05,266 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:54:05,267 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:54:05,268 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:54:05,276 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:54:05,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:54:05" (1/1) ... [2018-09-18 11:54:05,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43dbb45b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:05, skipping insertion in model container [2018-09-18 11:54:05,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:54:05" (1/1) ... [2018-09-18 11:54:05,293 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:54:06,113 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:54:06,131 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:54:06,395 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:54:06,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:06 WrapperNode [2018-09-18 11:54:06,515 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:54:06,516 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:54:06,516 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:54:06,516 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:54:06,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:06" (1/1) ... [2018-09-18 11:54:06,588 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:06" (1/1) ... [2018-09-18 11:54:06,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:54:06,797 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:54:06,797 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:54:06,798 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:54:07,252 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:06" (1/1) ... [2018-09-18 11:54:07,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:06" (1/1) ... [2018-09-18 11:54:07,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:06" (1/1) ... [2018-09-18 11:54:07,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:06" (1/1) ... [2018-09-18 11:54:07,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:06" (1/1) ... [2018-09-18 11:54:07,382 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:06" (1/1) ... [2018-09-18 11:54:07,430 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:06" (1/1) ... [2018-09-18 11:54:07,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:54:07,487 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:54:07,487 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:54:07,487 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:54:07,488 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:06" (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 11:54:07,563 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:54:07,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:54:07,563 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-09-18 11:54:07,563 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-09-18 11:54:07,564 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:54:07,564 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:54:07,564 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:54:07,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:54:07,564 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:54:07,564 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:54:17,683 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:54:17,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:54:17 BoogieIcfgContainer [2018-09-18 11:54:17,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:54:17,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:54:17,685 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:54:17,688 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:54:17,689 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:54:05" (1/3) ... [2018-09-18 11:54:17,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f437207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:54:17, skipping insertion in model container [2018-09-18 11:54:17,690 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:54:06" (2/3) ... [2018-09-18 11:54:17,690 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f437207 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:54:17, skipping insertion in model container [2018-09-18 11:54:17,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:54:17" (3/3) ... [2018-09-18 11:54:17,692 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label12_true-unreach-call.c [2018-09-18 11:54:17,701 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:54:17,709 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:54:17,764 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:54:17,765 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:54:17,765 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:54:17,765 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:54:17,765 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:54:17,765 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:54:17,766 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:54:17,766 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:54:17,766 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:54:17,805 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states. [2018-09-18 11:54:17,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2018-09-18 11:54:17,816 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:54:17,817 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] [2018-09-18 11:54:17,818 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:54:17,824 INFO L82 PathProgramCache]: Analyzing trace with hash -1945844012, now seen corresponding path program 1 times [2018-09-18 11:54:17,827 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:54:17,872 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:54:17,872 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:54:17,873 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:54:17,873 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:54:18,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:54:18,391 WARN L178 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:54:18,517 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 11:54:18,519 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:54:18,520 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-18 11:54:18,520 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:54:18,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:54:18,543 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:54:18,544 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:54:18,547 INFO L87 Difference]: Start difference. First operand 438 states. Second operand 3 states. [2018-09-18 11:54:26,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:54:26,558 INFO L93 Difference]: Finished difference Result 1192 states and 2147 transitions. [2018-09-18 11:54:26,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:54:26,560 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2018-09-18 11:54:26,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:54:26,584 INFO L225 Difference]: With dead ends: 1192 [2018-09-18 11:54:26,584 INFO L226 Difference]: Without dead ends: 752 [2018-09-18 11:54:26,595 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-18 11:54:26,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 752 states. [2018-09-18 11:54:26,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 752 to 752. [2018-09-18 11:54:26,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 752 states. [2018-09-18 11:54:26,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 752 states to 752 states and 1322 transitions. [2018-09-18 11:54:26,703 INFO L78 Accepts]: Start accepts. Automaton has 752 states and 1322 transitions. Word has length 66 [2018-09-18 11:54:26,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:54:26,703 INFO L480 AbstractCegarLoop]: Abstraction has 752 states and 1322 transitions. [2018-09-18 11:54:26,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:54:26,704 INFO L276 IsEmpty]: Start isEmpty. Operand 752 states and 1322 transitions. [2018-09-18 11:54:26,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-09-18 11:54:26,714 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:54:26,714 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, 1, 1, 1, 1, 1, 1, 1, 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 11:54:26,715 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:54:26,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1570917914, now seen corresponding path program 1 times [2018-09-18 11:54:26,715 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:54:26,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:54:26,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:54:26,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:54:26,717 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:54:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:54:27,242 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:54:27,243 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:54:27,243 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 11:54:27,260 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:54:27,260 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:54:27,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:54:27,347 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:54:28,408 WARN L178 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2018-09-18 11:54:28,461 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:54:28,462 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:54:28,653 WARN L178 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2018-09-18 11:54:28,787 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2018-09-18 11:54:29,040 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 16 DAG size of output: 15 [2018-09-18 11:54:29,775 WARN L178 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 27 [2018-09-18 11:54:29,953 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:54:29,977 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 11:54:29,977 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [7] total 12 [2018-09-18 11:54:29,977 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:54:29,978 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:54:29,979 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:54:29,979 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:54:29,979 INFO L87 Difference]: Start difference. First operand 752 states and 1322 transitions. Second operand 5 states. [2018-09-18 11:54:44,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:54:44,078 INFO L93 Difference]: Finished difference Result 2474 states and 4412 transitions. [2018-09-18 11:54:44,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:54:44,079 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 147 [2018-09-18 11:54:44,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:54:44,092 INFO L225 Difference]: With dead ends: 2474 [2018-09-18 11:54:44,093 INFO L226 Difference]: Without dead ends: 1728 [2018-09-18 11:54:44,099 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 304 GetRequests, 290 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2018-09-18 11:54:44,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1728 states. [2018-09-18 11:54:44,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1728 to 1713. [2018-09-18 11:54:44,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1713 states. [2018-09-18 11:54:44,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1713 states to 1713 states and 2784 transitions. [2018-09-18 11:54:44,170 INFO L78 Accepts]: Start accepts. Automaton has 1713 states and 2784 transitions. Word has length 147 [2018-09-18 11:54:44,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:54:44,171 INFO L480 AbstractCegarLoop]: Abstraction has 1713 states and 2784 transitions. [2018-09-18 11:54:44,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:54:44,172 INFO L276 IsEmpty]: Start isEmpty. Operand 1713 states and 2784 transitions. [2018-09-18 11:54:44,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2018-09-18 11:54:44,178 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:54:44,178 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:54:44,178 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:54:44,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1315892843, now seen corresponding path program 1 times [2018-09-18 11:54:44,179 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:54:44,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:54:44,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:54:44,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:54:44,181 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:54:44,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:54:44,586 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:54:44,587 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:54:44,587 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-18 11:54:44,587 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:54:44,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:54:44,588 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:54:44,588 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-09-18 11:54:44,589 INFO L87 Difference]: Start difference. First operand 1713 states and 2784 transitions. Second operand 5 states. [2018-09-18 11:54:55,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:54:55,864 INFO L93 Difference]: Finished difference Result 4450 states and 7643 transitions. [2018-09-18 11:54:55,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:54:55,867 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 183 [2018-09-18 11:54:55,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:54:55,898 INFO L225 Difference]: With dead ends: 4450 [2018-09-18 11:54:55,898 INFO L226 Difference]: Without dead ends: 3054 [2018-09-18 11:54:55,905 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:54:55,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3054 states. [2018-09-18 11:54:55,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3054 to 2938. [2018-09-18 11:54:55,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2938 states. [2018-09-18 11:54:56,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2938 states to 2938 states and 4358 transitions. [2018-09-18 11:54:56,003 INFO L78 Accepts]: Start accepts. Automaton has 2938 states and 4358 transitions. Word has length 183 [2018-09-18 11:54:56,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:54:56,004 INFO L480 AbstractCegarLoop]: Abstraction has 2938 states and 4358 transitions. [2018-09-18 11:54:56,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:54:56,004 INFO L276 IsEmpty]: Start isEmpty. Operand 2938 states and 4358 transitions. [2018-09-18 11:54:56,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2018-09-18 11:54:56,009 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:54:56,009 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, 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] [2018-09-18 11:54:56,010 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:54:56,010 INFO L82 PathProgramCache]: Analyzing trace with hash -461112399, now seen corresponding path program 1 times [2018-09-18 11:54:56,010 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:54:56,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:54:56,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:54:56,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:54:56,012 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:54:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:54:56,501 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:54:57,600 WARN L178 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 27 [2018-09-18 11:54:58,067 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 56 proven. 136 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-09-18 11:54:58,067 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:54:58,067 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 11:54:58,077 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:54:58,077 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:54:58,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:54:58,166 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:54:58,791 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 173 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:54:58,791 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:54:59,221 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 123 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:54:59,315 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:54:59,315 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 11:54:59,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:54:59,336 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:54:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:54:59,511 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:54:59,860 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 123 proven. 26 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-09-18 11:54:59,860 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:55:00,529 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 123 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:55:00,531 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:55:00,532 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 9, 8, 9] total 30 [2018-09-18 11:55:00,532 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:55:00,534 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-18 11:55:00,534 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-18 11:55:00,534 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=163, Invalid=707, Unknown=0, NotChecked=0, Total=870 [2018-09-18 11:55:00,535 INFO L87 Difference]: Start difference. First operand 2938 states and 4358 transitions. Second operand 20 states. [2018-09-18 11:55:06,469 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 35 [2018-09-18 11:55:11,581 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 33 [2018-09-18 11:55:16,929 WARN L178 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2018-09-18 11:55:17,489 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 23 [2018-09-18 11:55:17,931 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 38 [2018-09-18 11:55:20,926 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2018-09-18 11:55:22,142 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2018-09-18 11:55:27,127 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2018-09-18 11:55:32,284 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2018-09-18 11:55:34,370 WARN L178 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2018-09-18 11:55:48,396 WARN L178 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2018-09-18 11:55:52,295 WARN L178 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 28 [2018-09-18 11:55:57,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:55:57,354 INFO L93 Difference]: Finished difference Result 23587 states and 40697 transitions. [2018-09-18 11:55:57,354 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2018-09-18 11:55:57,355 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 243 [2018-09-18 11:55:57,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:55:57,576 INFO L225 Difference]: With dead ends: 23587 [2018-09-18 11:55:57,576 INFO L226 Difference]: Without dead ends: 19999 [2018-09-18 11:55:57,700 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1113 GetRequests, 955 SyntacticMatches, 6 SemanticMatches, 152 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9620 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=4030, Invalid=19532, Unknown=0, NotChecked=0, Total=23562 [2018-09-18 11:55:57,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19999 states. [2018-09-18 11:55:58,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19999 to 18607. [2018-09-18 11:55:58,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18607 states. [2018-09-18 11:55:58,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18607 states to 18607 states and 27004 transitions. [2018-09-18 11:55:58,667 INFO L78 Accepts]: Start accepts. Automaton has 18607 states and 27004 transitions. Word has length 243 [2018-09-18 11:55:58,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:55:58,668 INFO L480 AbstractCegarLoop]: Abstraction has 18607 states and 27004 transitions. [2018-09-18 11:55:58,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-09-18 11:55:58,668 INFO L276 IsEmpty]: Start isEmpty. Operand 18607 states and 27004 transitions. [2018-09-18 11:55:58,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 590 [2018-09-18 11:55:58,760 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:55:58,761 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:55:58,761 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:55:58,762 INFO L82 PathProgramCache]: Analyzing trace with hash -674497275, now seen corresponding path program 1 times [2018-09-18 11:55:58,762 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:55:58,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:58,763 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:55:58,763 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:55:58,763 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:55:58,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:55:59,721 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 414 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-09-18 11:55:59,721 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:55:59,721 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 11:55:59,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:55:59,735 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:55:59,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:55:59,893 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:56:00,234 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 414 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-09-18 11:56:00,234 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:56:00,756 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 414 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-09-18 11:56:00,777 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:56:00,777 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:56:00,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:56:00,796 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:56:01,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:56:01,166 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:56:01,595 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 414 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-09-18 11:56:01,596 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:56:01,750 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 8 [2018-09-18 11:56:02,261 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 414 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2018-09-18 11:56:02,263 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:56:02,264 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5, 5, 5] total 11 [2018-09-18 11:56:02,264 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:56:02,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-18 11:56:02,265 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-18 11:56:02,265 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:56:02,266 INFO L87 Difference]: Start difference. First operand 18607 states and 27004 transitions. Second operand 9 states. [2018-09-18 11:56:14,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:56:14,442 INFO L93 Difference]: Finished difference Result 41306 states and 71744 transitions. [2018-09-18 11:56:14,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2018-09-18 11:56:14,443 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 589 [2018-09-18 11:56:14,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:56:14,664 INFO L225 Difference]: With dead ends: 41306 [2018-09-18 11:56:14,665 INFO L226 Difference]: Without dead ends: 23015 [2018-09-18 11:56:14,884 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2386 GetRequests, 2358 SyntacticMatches, 6 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=172, Invalid=380, Unknown=0, NotChecked=0, Total=552 [2018-09-18 11:56:14,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23015 states. [2018-09-18 11:56:16,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23015 to 22071. [2018-09-18 11:56:16,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22071 states. [2018-09-18 11:56:16,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22071 states to 22071 states and 32173 transitions. [2018-09-18 11:56:16,210 INFO L78 Accepts]: Start accepts. Automaton has 22071 states and 32173 transitions. Word has length 589 [2018-09-18 11:56:16,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:56:16,212 INFO L480 AbstractCegarLoop]: Abstraction has 22071 states and 32173 transitions. [2018-09-18 11:56:16,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-18 11:56:16,212 INFO L276 IsEmpty]: Start isEmpty. Operand 22071 states and 32173 transitions. [2018-09-18 11:56:16,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2018-09-18 11:56:16,315 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:56:16,316 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:56:16,316 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:56:16,317 INFO L82 PathProgramCache]: Analyzing trace with hash 2013688261, now seen corresponding path program 1 times [2018-09-18 11:56:16,317 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:56:16,317 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:56:16,318 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:56:16,318 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:56:16,318 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:56:16,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:56:17,278 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 390 proven. 57 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2018-09-18 11:56:17,278 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:56:17,279 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:56:17,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:56:17,289 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:56:17,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:56:17,457 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:56:32,494 WARN L178 SmtUtils]: Spent 14.83 s on a formula simplification. DAG size of input: 116 DAG size of output: 50 [2018-09-18 11:56:32,880 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 440 proven. 116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:56:32,880 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:56:33,142 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 31 [2018-09-18 11:56:33,319 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2018-09-18 11:56:34,024 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 440 proven. 116 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:56:34,046 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:56:34,046 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:56:34,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:56:34,062 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:56:34,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:56:34,447 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:56:53,295 WARN L178 SmtUtils]: Spent 18.48 s on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2018-09-18 11:56:53,954 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 385 proven. 111 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2018-09-18 11:56:53,954 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:56:54,132 WARN L178 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 16 [2018-09-18 11:56:59,077 WARN L178 SmtUtils]: Spent 4.12 s on a formula simplification that was a NOOP. DAG size: 48 [2018-09-18 11:56:59,081 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:01,199 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 18 [2018-09-18 11:57:27,903 WARN L178 SmtUtils]: Spent 24.59 s on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2018-09-18 11:57:27,909 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:27,916 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:27,923 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:27,930 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:27,936 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:27,943 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:27,949 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:27,956 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:27,962 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:27,968 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:27,974 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:27,981 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:27,987 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:27,993 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:27,999 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,005 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,011 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,016 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,022 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,027 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,033 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,038 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,044 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,049 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,055 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,061 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,067 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,073 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,079 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,085 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,091 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,096 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,102 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,108 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,113 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,119 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,125 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,130 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,136 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,142 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,148 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,153 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,159 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,165 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,171 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,177 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,183 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,189 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,194 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,199 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,205 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,211 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,216 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,225 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,230 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,236 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,241 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,247 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,252 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,258 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,264 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,269 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,275 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,280 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,285 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,291 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,297 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,303 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,309 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,315 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,320 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,325 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,331 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,336 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,342 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,347 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,352 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,358 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,364 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,369 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,374 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,380 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,385 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,390 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,396 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,401 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,406 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,412 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,417 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,422 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,427 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,432 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,438 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,444 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,449 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,454 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,459 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,465 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,470 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,475 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,480 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,485 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,490 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,495 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,500 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,506 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,511 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,516 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,521 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,527 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,532 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,537 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,542 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,548 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,553 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,559 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,564 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,569 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,575 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,580 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,585 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,591 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,596 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,602 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,607 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,613 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,619 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,624 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,629 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,635 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,640 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,646 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,651 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,657 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,662 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,668 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,673 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,679 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,684 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,690 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,695 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,700 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,705 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,711 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,716 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,721 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,727 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,732 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,737 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,742 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,748 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,753 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,759 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,764 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,769 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,775 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,780 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,785 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,791 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,796 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,801 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,806 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,811 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,817 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,823 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,828 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,834 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,839 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,845 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,850 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,856 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,861 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,866 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,872 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,878 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,883 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,888 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,893 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,898 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,903 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,909 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,914 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,919 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,925 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,930 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,935 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,940 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,944 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,949 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,954 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,959 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,964 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,969 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,975 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,981 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,987 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,992 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:28,998 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,004 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,010 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,015 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,021 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,027 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,032 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,038 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,044 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,052 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,058 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,064 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,070 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,075 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,081 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,087 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,092 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,098 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,104 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,110 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,115 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,121 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,127 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,133 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,138 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,144 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,149 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,155 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,160 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,166 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,171 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,177 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,182 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,188 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,193 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,199 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,206 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,212 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,219 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,225 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,232 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,239 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,245 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,252 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,259 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,266 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,272 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,279 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,285 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,292 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,300 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,306 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,313 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,319 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,326 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,333 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,340 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,347 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,354 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,361 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,367 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,374 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,380 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,387 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,394 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,400 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,407 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,413 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,420 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:29,426 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 12 [2018-09-18 11:57:36,372 WARN L178 SmtUtils]: Spent 2.21 s on a formula simplification that was a NOOP. DAG size: 72 [2018-09-18 11:57:41,578 INFO L134 CoverageAnalysis]: Checked inductivity of 556 backedges. 183 proven. 368 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:57:41,580 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:57:41,581 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8, 9, 10] total 29 [2018-09-18 11:57:41,581 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:57:41,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-09-18 11:57:41,583 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-09-18 11:57:41,583 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=709, Unknown=3, NotChecked=0, Total=812 [2018-09-18 11:57:41,583 INFO L87 Difference]: Start difference. First operand 22071 states and 32173 transitions. Second operand 12 states. Received shutdown request... [2018-09-18 11:58:13,257 WARN L186 SmtUtils]: Removed 4 from assertion stack [2018-09-18 11:58:13,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2018-09-18 11:58:13,258 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-18 11:58:13,263 WARN L206 ceAbstractionStarter]: Timeout [2018-09-18 11:58:13,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 11:58:13 BoogieIcfgContainer [2018-09-18 11:58:13,264 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 11:58:13,264 INFO L168 Benchmark]: Toolchain (without parser) took 248003.32 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 2.3 GB in the end (delta: -869.3 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2018-09-18 11:58:13,265 INFO L168 Benchmark]: CDTParser took 0.19 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 11:58:13,266 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1247.92 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: 129.5 MB). Peak memory consumption was 129.5 MB. Max. memory is 7.1 GB. [2018-09-18 11:58:13,266 INFO L168 Benchmark]: Boogie Procedure Inliner took 281.03 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-09-18 11:58:13,267 INFO L168 Benchmark]: Boogie Preprocessor took 689.26 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 861.4 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. [2018-09-18 11:58:13,268 INFO L168 Benchmark]: RCFGBuilder took 10197.00 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 291.8 MB). Peak memory consumption was 291.8 MB. Max. memory is 7.1 GB. [2018-09-18 11:58:13,269 INFO L168 Benchmark]: TraceAbstraction took 235579.13 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 2.3 GB in the end (delta: -311.7 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-09-18 11:58:13,275 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1247.92 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: 129.5 MB). Peak memory consumption was 129.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 281.03 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 689.26 ms. Allocated memory was 1.5 GB in the beginning and 2.4 GB in the end (delta: 861.4 MB). Free memory was 1.2 GB in the beginning and 2.2 GB in the end (delta: -1.0 GB). Peak memory consumption was 89.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 10197.00 ms. Allocated memory is still 2.4 GB. Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 291.8 MB). Peak memory consumption was 291.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 235579.13 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 2.3 GB in the end (delta: -311.7 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 184]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 184). Cancelled while BasicCegarLoop was constructing difference of abstraction (22071states) and FLOYD_HOARE automaton (currently 32 states, 12 states before enhancement), while PredicateUnifier was unifying predicates, while SimplifyDDAWithTimeout was simplifying term of DAG size 58. - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 438 locations, 1 error locations. TIMEOUT Result, 235.5s OverallTime, 6 OverallIterations, 4 TraceHistogramMax, 134.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1042 SDtfs, 31147 SDslu, 2413 SDs, 0 SdLazy, 33538 SolverSat, 14955 SolverUnsat, 5 SolverUnknown, 0 SolverNotchecked, 91.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6305 GetRequests, 6032 SyntacticMatches, 22 SemanticMatches, 250 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10479 ImplicationChecksByTransitivity, 109.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22071occurred in iteration=5, 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: 2.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 2467 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.2s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 94.6s InterpolantComputationTime, 4863 NumberOfCodeBlocks, 4863 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 7870 ConstructedInterpolants, 292 QuantifiedInterpolants, 43336787 SizeOfPredicates, 19 NumberOfNonLiveVariables, 4418 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 20 InterpolantComputations, 4 PerfectInterpolantSequences, 5304/6481 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_label12_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_11-58-13-291.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem15_label12_true-unreach-call.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_11-58-13-291.csv Completed graceful shutdown