java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/recursive/Addition03-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:51:25,615 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:51:25,617 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:51:25,628 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-10 02:51:25,690 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 02:51:25,713 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:51:25,713 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:51:25,714 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:51:25,714 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:51:25,715 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:51:25,715 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:51:25,715 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:51:25,716 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:51:25,716 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:51:25,716 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:51:25,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:51:25,718 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:51:25,718 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:51:25,718 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:51:25,719 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:51:25,719 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:51:25,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:51:25,719 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:51:25,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:51:25,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:51:25,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:51:25,720 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:51:25,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:51:25,721 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:51:25,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:51:25,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:51:25,721 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:51:25,722 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:51:25,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:51:25,722 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:51:25,769 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:51:25,783 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:51:25,787 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:51:25,789 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:51:25,790 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:51:25,791 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Addition03-1.c [2019-09-10 02:51:25,860 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2de1779b1/9ef35e094c00451dbc962f456366cd2b/FLAG6cb9c3b55 [2019-09-10 02:51:26,261 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:51:26,262 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/Addition03-1.c [2019-09-10 02:51:26,268 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2de1779b1/9ef35e094c00451dbc962f456366cd2b/FLAG6cb9c3b55 [2019-09-10 02:51:26,650 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2de1779b1/9ef35e094c00451dbc962f456366cd2b [2019-09-10 02:51:26,662 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:51:26,663 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:51:26,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:51:26,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:51:26,667 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:51:26,668 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:51:26" (1/1) ... [2019-09-10 02:51:26,671 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28fd976a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:26, skipping insertion in model container [2019-09-10 02:51:26,671 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:51:26" (1/1) ... [2019-09-10 02:51:26,678 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:51:26,693 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:51:26,884 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:51:26,889 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:51:26,906 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:51:26,916 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:51:26,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:26 WrapperNode [2019-09-10 02:51:26,917 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:51:26,918 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:51:26,918 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:51:26,918 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:51:27,012 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:26" (1/1) ... [2019-09-10 02:51:27,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:26" (1/1) ... [2019-09-10 02:51:27,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:26" (1/1) ... [2019-09-10 02:51:27,019 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:26" (1/1) ... [2019-09-10 02:51:27,022 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:26" (1/1) ... [2019-09-10 02:51:27,024 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:26" (1/1) ... [2019-09-10 02:51:27,025 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:26" (1/1) ... [2019-09-10 02:51:27,026 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:51:27,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:51:27,027 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:51:27,027 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:51:27,028 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:26" (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 [2019-09-10 02:51:27,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:51:27,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:51:27,085 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2019-09-10 02:51:27,085 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:51:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:51:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-10 02:51:27,085 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2019-09-10 02:51:27,086 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:51:27,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:51:27,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:51:27,277 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:51:27,277 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 02:51:27,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:51:27 BoogieIcfgContainer [2019-09-10 02:51:27,279 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:51:27,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:51:27,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:51:27,284 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:51:27,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:51:26" (1/3) ... [2019-09-10 02:51:27,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310a9179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:51:27, skipping insertion in model container [2019-09-10 02:51:27,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:51:26" (2/3) ... [2019-09-10 02:51:27,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@310a9179 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:51:27, skipping insertion in model container [2019-09-10 02:51:27,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:51:27" (3/3) ... [2019-09-10 02:51:27,289 INFO L109 eAbstractionObserver]: Analyzing ICFG Addition03-1.c [2019-09-10 02:51:27,304 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:51:27,313 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:51:27,331 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:51:27,360 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:51:27,361 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:51:27,361 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:51:27,361 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:51:27,361 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:51:27,361 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:51:27,362 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:51:27,362 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:51:27,386 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2019-09-10 02:51:27,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-10 02:51:27,396 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:27,397 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:51:27,399 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:27,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:27,405 INFO L82 PathProgramCache]: Analyzing trace with hash 1540493149, now seen corresponding path program 1 times [2019-09-10 02:51:27,408 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:27,454 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:27,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:27,455 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:27,455 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:27,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:27,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 02:51:27,576 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:51:27,576 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 02:51:27,576 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:51:27,579 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 02:51:27,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 02:51:27,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 02:51:27,592 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2019-09-10 02:51:27,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:27,729 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2019-09-10 02:51:27,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 02:51:27,730 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-09-10 02:51:27,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:27,738 INFO L225 Difference]: With dead ends: 30 [2019-09-10 02:51:27,739 INFO L226 Difference]: Without dead ends: 22 [2019-09-10 02:51:27,741 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-10 02:51:27,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-09-10 02:51:27,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-09-10 02:51:27,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-09-10 02:51:27,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 27 transitions. [2019-09-10 02:51:27,780 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 27 transitions. Word has length 13 [2019-09-10 02:51:27,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:27,781 INFO L475 AbstractCegarLoop]: Abstraction has 22 states and 27 transitions. [2019-09-10 02:51:27,781 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 02:51:27,781 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 27 transitions. [2019-09-10 02:51:27,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-10 02:51:27,783 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:27,784 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:51:27,784 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:27,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:27,784 INFO L82 PathProgramCache]: Analyzing trace with hash -35294164, now seen corresponding path program 1 times [2019-09-10 02:51:27,785 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:27,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:27,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:27,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:27,787 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:27,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:27,894 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 02:51:27,895 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:27,895 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:51:27,896 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 21 with the following transitions: [2019-09-10 02:51:27,898 INFO L207 CegarAbsIntRunner]: [0], [4], [6], [10], [12], [15], [18], [19], [22], [24], [32], [33], [34], [35], [37], [38], [39], [40] [2019-09-10 02:51:27,934 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 02:51:27,934 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 02:51:28,123 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 02:51:28,127 INFO L272 AbstractInterpreter]: Visited 18 different actions 102 times. Merged at 5 different actions 38 times. Widened at 1 different actions 3 times. Performed 147 root evaluator evaluations with a maximum evaluation depth of 5. Performed 147 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 7 fixpoints after 3 different actions. Largest state had 6 variables. [2019-09-10 02:51:28,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:28,132 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 02:51:28,132 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:28,132 INFO L193 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 [2019-09-10 02:51:28,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:28,149 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 02:51:28,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:28,180 INFO L256 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-10 02:51:28,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:51:28,221 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 02:51:28,222 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:51:28,391 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:28,431 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-10 02:51:28,435 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:51:28,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 7] total 10 [2019-09-10 02:51:28,436 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:51:28,437 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 02:51:28,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 02:51:28,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-10 02:51:28,438 INFO L87 Difference]: Start difference. First operand 22 states and 27 transitions. Second operand 6 states. [2019-09-10 02:51:28,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:28,553 INFO L93 Difference]: Finished difference Result 27 states and 33 transitions. [2019-09-10 02:51:28,554 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 02:51:28,554 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-09-10 02:51:28,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:28,556 INFO L225 Difference]: With dead ends: 27 [2019-09-10 02:51:28,568 INFO L226 Difference]: Without dead ends: 25 [2019-09-10 02:51:28,569 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2019-09-10 02:51:28,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-09-10 02:51:28,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-09-10 02:51:28,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-09-10 02:51:28,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 31 transitions. [2019-09-10 02:51:28,578 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 31 transitions. Word has length 20 [2019-09-10 02:51:28,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:28,578 INFO L475 AbstractCegarLoop]: Abstraction has 25 states and 31 transitions. [2019-09-10 02:51:28,579 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 02:51:28,579 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 31 transitions. [2019-09-10 02:51:28,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2019-09-10 02:51:28,580 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:28,580 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:51:28,581 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:28,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:28,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1261456781, now seen corresponding path program 2 times [2019-09-10 02:51:28,582 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:28,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:28,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:28,583 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:28,583 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:28,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:28,658 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-10 02:51:28,659 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:28,659 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:51:28,659 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:51:28,659 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:51:28,660 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:28,660 INFO L193 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 [2019-09-10 02:51:28,677 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-10 02:51:28,678 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-09-10 02:51:28,696 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-09-10 02:51:28,697 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 02:51:28,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-10 02:51:28,700 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:51:28,710 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-10 02:51:28,710 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:51:28,956 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:29,003 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:29,040 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-10 02:51:29,044 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:51:29,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 9] total 12 [2019-09-10 02:51:29,044 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:51:29,044 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 02:51:29,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 02:51:29,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2019-09-10 02:51:29,045 INFO L87 Difference]: Start difference. First operand 25 states and 31 transitions. Second operand 7 states. [2019-09-10 02:51:29,143 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:29,143 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2019-09-10 02:51:29,144 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 02:51:29,144 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 27 [2019-09-10 02:51:29,144 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:29,145 INFO L225 Difference]: With dead ends: 30 [2019-09-10 02:51:29,145 INFO L226 Difference]: Without dead ends: 28 [2019-09-10 02:51:29,146 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 47 SyntacticMatches, 5 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2019-09-10 02:51:29,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-09-10 02:51:29,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-09-10 02:51:29,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-09-10 02:51:29,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 35 transitions. [2019-09-10 02:51:29,155 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 35 transitions. Word has length 27 [2019-09-10 02:51:29,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:29,156 INFO L475 AbstractCegarLoop]: Abstraction has 28 states and 35 transitions. [2019-09-10 02:51:29,156 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 02:51:29,156 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 35 transitions. [2019-09-10 02:51:29,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-09-10 02:51:29,158 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:29,158 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:51:29,158 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:29,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:29,159 INFO L82 PathProgramCache]: Analyzing trace with hash 2131329174, now seen corresponding path program 3 times [2019-09-10 02:51:29,159 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:29,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:29,160 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 02:51:29,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:29,160 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:29,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:29,252 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-09-10 02:51:29,252 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:29,253 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:51:29,253 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:51:29,253 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:51:29,253 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:29,253 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:51:29,278 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-09-10 02:51:29,279 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-09-10 02:51:29,300 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-09-10 02:51:29,300 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 02:51:29,301 INFO L256 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-10 02:51:29,305 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:51:29,331 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-09-10 02:51:29,332 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:51:29,723 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:29,803 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:29,836 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:29,867 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-10 02:51:29,871 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:51:29,871 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 11] total 14 [2019-09-10 02:51:29,871 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:51:29,872 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 02:51:29,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 02:51:29,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2019-09-10 02:51:29,874 INFO L87 Difference]: Start difference. First operand 28 states and 35 transitions. Second operand 8 states. [2019-09-10 02:51:29,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:29,976 INFO L93 Difference]: Finished difference Result 33 states and 41 transitions. [2019-09-10 02:51:29,977 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 02:51:29,977 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-09-10 02:51:29,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:29,980 INFO L225 Difference]: With dead ends: 33 [2019-09-10 02:51:29,980 INFO L226 Difference]: Without dead ends: 31 [2019-09-10 02:51:29,981 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 59 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2019-09-10 02:51:29,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-09-10 02:51:29,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-09-10 02:51:29,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-09-10 02:51:29,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 39 transitions. [2019-09-10 02:51:29,991 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 39 transitions. Word has length 34 [2019-09-10 02:51:29,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:29,991 INFO L475 AbstractCegarLoop]: Abstraction has 31 states and 39 transitions. [2019-09-10 02:51:29,992 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 02:51:29,992 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 39 transitions. [2019-09-10 02:51:29,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-09-10 02:51:29,996 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:29,997 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:51:29,997 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:29,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:29,998 INFO L82 PathProgramCache]: Analyzing trace with hash -867295607, now seen corresponding path program 4 times [2019-09-10 02:51:29,998 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:29,999 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:30,000 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 02:51:30,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:30,000 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:30,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:30,099 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 02:51:30,100 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:30,100 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:51:30,100 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:51:30,100 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:51:30,101 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:30,101 INFO L193 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 [2019-09-10 02:51:30,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:30,123 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 02:51:30,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:30,141 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 12 conjunts are in the unsatisfiable core [2019-09-10 02:51:30,143 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:51:30,155 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 02:51:30,155 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:51:30,609 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:30,745 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:30,810 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:30,844 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:30,883 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-10 02:51:30,887 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:51:30,887 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 13] total 16 [2019-09-10 02:51:30,887 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:51:30,888 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 02:51:30,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 02:51:30,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2019-09-10 02:51:30,889 INFO L87 Difference]: Start difference. First operand 31 states and 39 transitions. Second operand 9 states. [2019-09-10 02:51:31,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:31,076 INFO L93 Difference]: Finished difference Result 36 states and 45 transitions. [2019-09-10 02:51:31,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-10 02:51:31,076 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 41 [2019-09-10 02:51:31,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:31,078 INFO L225 Difference]: With dead ends: 36 [2019-09-10 02:51:31,078 INFO L226 Difference]: Without dead ends: 34 [2019-09-10 02:51:31,079 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 71 SyntacticMatches, 9 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2019-09-10 02:51:31,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-09-10 02:51:31,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-09-10 02:51:31,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-09-10 02:51:31,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 43 transitions. [2019-09-10 02:51:31,094 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 43 transitions. Word has length 41 [2019-09-10 02:51:31,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:31,094 INFO L475 AbstractCegarLoop]: Abstraction has 34 states and 43 transitions. [2019-09-10 02:51:31,095 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 02:51:31,095 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2019-09-10 02:51:31,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-09-10 02:51:31,099 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:31,099 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:51:31,099 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:31,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:31,100 INFO L82 PathProgramCache]: Analyzing trace with hash -943688704, now seen corresponding path program 5 times [2019-09-10 02:51:31,100 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:31,102 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:31,102 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:31,103 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:31,103 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:31,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:31,247 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-09-10 02:51:31,248 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:31,248 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:51:31,248 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:51:31,248 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:51:31,248 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:31,248 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:51:31,259 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-10 02:51:31,259 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-09-10 02:51:31,283 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2019-09-10 02:51:31,283 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 02:51:31,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 14 conjunts are in the unsatisfiable core [2019-09-10 02:51:31,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:51:31,299 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2019-09-10 02:51:31,299 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:51:31,975 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:32,169 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:32,304 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:32,383 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:32,424 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:32,458 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-09-10 02:51:32,462 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:51:32,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 15] total 18 [2019-09-10 02:51:32,463 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:51:32,463 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 02:51:32,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 02:51:32,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2019-09-10 02:51:32,465 INFO L87 Difference]: Start difference. First operand 34 states and 43 transitions. Second operand 10 states. [2019-09-10 02:51:32,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:32,629 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2019-09-10 02:51:32,629 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-10 02:51:32,630 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48 [2019-09-10 02:51:32,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:32,631 INFO L225 Difference]: With dead ends: 39 [2019-09-10 02:51:32,631 INFO L226 Difference]: Without dead ends: 37 [2019-09-10 02:51:32,632 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 83 SyntacticMatches, 11 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=373, Unknown=0, NotChecked=0, Total=552 [2019-09-10 02:51:32,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-09-10 02:51:32,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-09-10 02:51:32,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-09-10 02:51:32,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 47 transitions. [2019-09-10 02:51:32,640 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 47 transitions. Word has length 48 [2019-09-10 02:51:32,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:32,640 INFO L475 AbstractCegarLoop]: Abstraction has 37 states and 47 transitions. [2019-09-10 02:51:32,641 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 02:51:32,641 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 47 transitions. [2019-09-10 02:51:32,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-10 02:51:32,642 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:32,642 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:51:32,643 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:32,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:32,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1959654303, now seen corresponding path program 6 times [2019-09-10 02:51:32,643 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:32,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:32,644 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 02:51:32,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:32,644 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:32,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:32,756 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-09-10 02:51:32,757 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:32,757 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:51:32,757 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:51:32,757 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:51:32,758 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:32,758 INFO L193 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 [2019-09-10 02:51:32,768 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-09-10 02:51:32,768 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-09-10 02:51:32,795 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-09-10 02:51:32,796 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 02:51:32,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 16 conjunts are in the unsatisfiable core [2019-09-10 02:51:32,800 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:51:32,820 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 57 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2019-09-10 02:51:32,821 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:51:33,783 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:34,079 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:34,266 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:34,387 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:34,452 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:34,530 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:34,567 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2019-09-10 02:51:34,570 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:51:34,571 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 17] total 20 [2019-09-10 02:51:34,571 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:51:34,577 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-10 02:51:34,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-10 02:51:34,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2019-09-10 02:51:34,578 INFO L87 Difference]: Start difference. First operand 37 states and 47 transitions. Second operand 11 states. [2019-09-10 02:51:34,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:34,742 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2019-09-10 02:51:34,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 02:51:34,742 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 55 [2019-09-10 02:51:34,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:34,744 INFO L225 Difference]: With dead ends: 42 [2019-09-10 02:51:34,744 INFO L226 Difference]: Without dead ends: 40 [2019-09-10 02:51:34,745 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 95 SyntacticMatches, 13 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=228, Invalid=474, Unknown=0, NotChecked=0, Total=702 [2019-09-10 02:51:34,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-09-10 02:51:34,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2019-09-10 02:51:34,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-09-10 02:51:34,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2019-09-10 02:51:34,752 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 55 [2019-09-10 02:51:34,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:34,753 INFO L475 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2019-09-10 02:51:34,753 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-10 02:51:34,753 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2019-09-10 02:51:34,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-10 02:51:34,755 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:34,755 INFO L399 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:51:34,755 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:34,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:34,755 INFO L82 PathProgramCache]: Analyzing trace with hash 75083370, now seen corresponding path program 7 times [2019-09-10 02:51:34,756 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:34,756 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:34,757 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 02:51:34,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:34,757 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:34,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:34,862 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2019-09-10 02:51:34,863 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:34,863 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:51:34,863 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:51:34,863 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:51:34,864 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:34,864 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:51:34,881 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:34,881 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 02:51:34,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:34,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 18 conjunts are in the unsatisfiable core [2019-09-10 02:51:34,935 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:51:34,954 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2019-09-10 02:51:34,955 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:51:36,243 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:36,700 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:36,999 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:37,190 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:37,316 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:37,393 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:37,437 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:37,498 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2019-09-10 02:51:37,503 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:51:37,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 19] total 22 [2019-09-10 02:51:37,504 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:51:37,505 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-10 02:51:37,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-10 02:51:37,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=339, Unknown=0, NotChecked=0, Total=462 [2019-09-10 02:51:37,506 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand 12 states. [2019-09-10 02:51:37,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:37,703 INFO L93 Difference]: Finished difference Result 45 states and 57 transitions. [2019-09-10 02:51:37,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-10 02:51:37,703 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 62 [2019-09-10 02:51:37,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:37,706 INFO L225 Difference]: With dead ends: 45 [2019-09-10 02:51:37,706 INFO L226 Difference]: Without dead ends: 43 [2019-09-10 02:51:37,707 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 107 SyntacticMatches, 15 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=283, Invalid=587, Unknown=0, NotChecked=0, Total=870 [2019-09-10 02:51:37,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2019-09-10 02:51:37,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2019-09-10 02:51:37,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2019-09-10 02:51:37,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 55 transitions. [2019-09-10 02:51:37,718 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 55 transitions. Word has length 62 [2019-09-10 02:51:37,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:37,718 INFO L475 AbstractCegarLoop]: Abstraction has 43 states and 55 transitions. [2019-09-10 02:51:37,718 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-10 02:51:37,718 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 55 transitions. [2019-09-10 02:51:37,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-10 02:51:37,720 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:37,720 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:51:37,720 INFO L418 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:37,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:37,720 INFO L82 PathProgramCache]: Analyzing trace with hash 980406709, now seen corresponding path program 8 times [2019-09-10 02:51:37,721 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:37,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:37,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:37,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:37,722 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:37,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:37,846 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2019-09-10 02:51:37,847 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:37,847 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:51:37,847 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:51:37,847 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:51:37,847 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:37,847 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:51:37,858 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-10 02:51:37,858 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-09-10 02:51:37,895 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2019-09-10 02:51:37,896 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 02:51:37,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 20 conjunts are in the unsatisfiable core [2019-09-10 02:51:37,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:51:37,913 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2019-09-10 02:51:37,914 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:51:39,627 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:40,229 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:40,712 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:40,994 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:41,178 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:41,294 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:41,359 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:41,392 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:41,450 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 192 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2019-09-10 02:51:41,454 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:51:41,454 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 21] total 24 [2019-09-10 02:51:41,454 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:51:41,455 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-10 02:51:41,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-10 02:51:41,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=406, Unknown=0, NotChecked=0, Total=552 [2019-09-10 02:51:41,456 INFO L87 Difference]: Start difference. First operand 43 states and 55 transitions. Second operand 13 states. [2019-09-10 02:51:41,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:41,654 INFO L93 Difference]: Finished difference Result 48 states and 61 transitions. [2019-09-10 02:51:41,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-10 02:51:41,656 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 69 [2019-09-10 02:51:41,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:41,658 INFO L225 Difference]: With dead ends: 48 [2019-09-10 02:51:41,658 INFO L226 Difference]: Without dead ends: 46 [2019-09-10 02:51:41,659 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 119 SyntacticMatches, 17 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=344, Invalid=712, Unknown=0, NotChecked=0, Total=1056 [2019-09-10 02:51:41,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-09-10 02:51:41,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2019-09-10 02:51:41,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-09-10 02:51:41,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 59 transitions. [2019-09-10 02:51:41,667 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 59 transitions. Word has length 69 [2019-09-10 02:51:41,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:41,667 INFO L475 AbstractCegarLoop]: Abstraction has 46 states and 59 transitions. [2019-09-10 02:51:41,667 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-10 02:51:41,667 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 59 transitions. [2019-09-10 02:51:41,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-09-10 02:51:41,669 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:41,669 INFO L399 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:51:41,669 INFO L418 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:41,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:41,669 INFO L82 PathProgramCache]: Analyzing trace with hash -654012460, now seen corresponding path program 9 times [2019-09-10 02:51:41,670 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:41,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:41,670 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 02:51:41,670 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:41,671 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:41,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:41,789 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2019-09-10 02:51:41,790 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:41,790 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:51:41,790 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:51:41,790 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:51:41,790 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:41,790 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:51:41,801 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-09-10 02:51:41,801 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-09-10 02:51:41,832 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-09-10 02:51:41,832 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 02:51:41,833 INFO L256 TraceCheckSpWp]: Trace formula consists of 214 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-10 02:51:41,836 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:51:41,869 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 126 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2019-09-10 02:51:41,869 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:51:43,998 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:44,852 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:45,485 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:45,932 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:46,247 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:46,417 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:46,532 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:46,601 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:46,651 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:46,685 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 243 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2019-09-10 02:51:46,689 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:51:46,689 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 23] total 26 [2019-09-10 02:51:46,689 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:51:46,690 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-10 02:51:46,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-10 02:51:46,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2019-09-10 02:51:46,691 INFO L87 Difference]: Start difference. First operand 46 states and 59 transitions. Second operand 14 states. [2019-09-10 02:51:46,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:46,926 INFO L93 Difference]: Finished difference Result 51 states and 65 transitions. [2019-09-10 02:51:46,927 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-10 02:51:46,927 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 76 [2019-09-10 02:51:46,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:46,929 INFO L225 Difference]: With dead ends: 51 [2019-09-10 02:51:46,930 INFO L226 Difference]: Without dead ends: 49 [2019-09-10 02:51:46,931 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 131 SyntacticMatches, 19 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=411, Invalid=849, Unknown=0, NotChecked=0, Total=1260 [2019-09-10 02:51:46,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2019-09-10 02:51:46,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 49. [2019-09-10 02:51:46,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2019-09-10 02:51:46,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 63 transitions. [2019-09-10 02:51:46,939 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 63 transitions. Word has length 76 [2019-09-10 02:51:46,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:46,939 INFO L475 AbstractCegarLoop]: Abstraction has 49 states and 63 transitions. [2019-09-10 02:51:46,939 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-10 02:51:46,939 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 63 transitions. [2019-09-10 02:51:46,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-10 02:51:46,941 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:46,941 INFO L399 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:51:46,941 INFO L418 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:46,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:46,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1057728309, now seen corresponding path program 10 times [2019-09-10 02:51:46,942 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:46,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:46,943 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 02:51:46,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:46,943 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:46,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:47,088 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2019-09-10 02:51:47,089 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:47,089 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:51:47,089 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:51:47,089 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:51:47,089 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:47,089 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:51:47,103 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:47,104 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 02:51:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:47,133 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 24 conjunts are in the unsatisfiable core [2019-09-10 02:51:47,135 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:51:47,150 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 155 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2019-09-10 02:51:47,150 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:51:49,803 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:50,915 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:51,756 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:52,377 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:52,821 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:53,122 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:53,313 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:53,428 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:53,497 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:53,536 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:53,595 INFO L134 CoverageAnalysis]: Checked inductivity of 355 backedges. 0 proven. 300 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2019-09-10 02:51:53,599 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:51:53,599 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 25] total 28 [2019-09-10 02:51:53,600 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:51:53,600 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-10 02:51:53,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-10 02:51:53,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2019-09-10 02:51:53,601 INFO L87 Difference]: Start difference. First operand 49 states and 63 transitions. Second operand 15 states. [2019-09-10 02:51:53,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:51:53,840 INFO L93 Difference]: Finished difference Result 54 states and 69 transitions. [2019-09-10 02:51:53,840 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 02:51:53,840 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 83 [2019-09-10 02:51:53,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:51:53,841 INFO L225 Difference]: With dead ends: 54 [2019-09-10 02:51:53,842 INFO L226 Difference]: Without dead ends: 52 [2019-09-10 02:51:53,843 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 143 SyntacticMatches, 21 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 372 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=484, Invalid=998, Unknown=0, NotChecked=0, Total=1482 [2019-09-10 02:51:53,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-09-10 02:51:53,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-09-10 02:51:53,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-09-10 02:51:53,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 67 transitions. [2019-09-10 02:51:53,851 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 67 transitions. Word has length 83 [2019-09-10 02:51:53,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:51:53,851 INFO L475 AbstractCegarLoop]: Abstraction has 52 states and 67 transitions. [2019-09-10 02:51:53,851 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-10 02:51:53,852 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 67 transitions. [2019-09-10 02:51:53,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-09-10 02:51:53,853 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:51:53,853 INFO L399 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:51:53,853 INFO L418 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:51:53,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:51:53,854 INFO L82 PathProgramCache]: Analyzing trace with hash -2104461250, now seen corresponding path program 11 times [2019-09-10 02:51:53,854 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:51:53,854 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:53,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:51:53,855 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:51:53,855 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:51:53,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:51:54,005 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2019-09-10 02:51:54,005 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:54,005 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:51:54,005 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:51:54,005 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:51:54,006 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:51:54,006 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:51:54,018 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-10 02:51:54,018 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-09-10 02:51:54,056 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2019-09-10 02:51:54,056 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 02:51:54,058 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 26 conjunts are in the unsatisfiable core [2019-09-10 02:51:54,060 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:51:54,077 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 187 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2019-09-10 02:51:54,077 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:51:57,346 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:58,767 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:51:59,862 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:00,719 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:01,359 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:01,802 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:02,086 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:02,294 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:02,420 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:02,492 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:02,530 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:02,574 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 363 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2019-09-10 02:52:02,584 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:52:02,585 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 27] total 30 [2019-09-10 02:52:02,585 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:52:02,585 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-10 02:52:02,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-10 02:52:02,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=227, Invalid=643, Unknown=0, NotChecked=0, Total=870 [2019-09-10 02:52:02,586 INFO L87 Difference]: Start difference. First operand 52 states and 67 transitions. Second operand 16 states. [2019-09-10 02:52:02,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:52:02,850 INFO L93 Difference]: Finished difference Result 57 states and 73 transitions. [2019-09-10 02:52:02,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-10 02:52:02,851 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 90 [2019-09-10 02:52:02,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:52:02,852 INFO L225 Difference]: With dead ends: 57 [2019-09-10 02:52:02,852 INFO L226 Difference]: Without dead ends: 55 [2019-09-10 02:52:02,853 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 155 SyntacticMatches, 23 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=563, Invalid=1159, Unknown=0, NotChecked=0, Total=1722 [2019-09-10 02:52:02,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2019-09-10 02:52:02,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2019-09-10 02:52:02,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2019-09-10 02:52:02,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 71 transitions. [2019-09-10 02:52:02,867 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 71 transitions. Word has length 90 [2019-09-10 02:52:02,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:52:02,868 INFO L475 AbstractCegarLoop]: Abstraction has 55 states and 71 transitions. [2019-09-10 02:52:02,873 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-10 02:52:02,874 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 71 transitions. [2019-09-10 02:52:02,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2019-09-10 02:52:02,875 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:52:02,877 INFO L399 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:52:02,878 INFO L418 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:52:02,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:52:02,878 INFO L82 PathProgramCache]: Analyzing trace with hash 565979361, now seen corresponding path program 12 times [2019-09-10 02:52:02,878 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:52:02,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:52:02,879 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 02:52:02,879 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:52:02,879 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:52:02,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:52:03,074 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2019-09-10 02:52:03,075 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:52:03,075 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:52:03,075 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:52:03,075 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:52:03,075 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:52:03,075 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:52:03,086 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-09-10 02:52:03,086 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-09-10 02:52:03,120 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-09-10 02:52:03,120 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 02:52:03,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 28 conjunts are in the unsatisfiable core [2019-09-10 02:52:03,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:52:03,136 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 222 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2019-09-10 02:52:03,136 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:52:07,099 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:08,831 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:10,241 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:11,479 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:12,355 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:12,987 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:13,421 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:13,711 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:13,893 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:14,012 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:14,080 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:14,120 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:14,159 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 432 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2019-09-10 02:52:14,162 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:52:14,163 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 29] total 32 [2019-09-10 02:52:14,163 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:52:14,163 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-10 02:52:14,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-10 02:52:14,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=734, Unknown=0, NotChecked=0, Total=992 [2019-09-10 02:52:14,164 INFO L87 Difference]: Start difference. First operand 55 states and 71 transitions. Second operand 17 states. [2019-09-10 02:52:14,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:52:14,481 INFO L93 Difference]: Finished difference Result 60 states and 77 transitions. [2019-09-10 02:52:14,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-10 02:52:14,482 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 97 [2019-09-10 02:52:14,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:52:14,483 INFO L225 Difference]: With dead ends: 60 [2019-09-10 02:52:14,483 INFO L226 Difference]: Without dead ends: 58 [2019-09-10 02:52:14,485 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 235 GetRequests, 167 SyntacticMatches, 25 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 518 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=648, Invalid=1332, Unknown=0, NotChecked=0, Total=1980 [2019-09-10 02:52:14,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2019-09-10 02:52:14,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2019-09-10 02:52:14,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2019-09-10 02:52:14,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 75 transitions. [2019-09-10 02:52:14,493 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 75 transitions. Word has length 97 [2019-09-10 02:52:14,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:52:14,494 INFO L475 AbstractCegarLoop]: Abstraction has 58 states and 75 transitions. [2019-09-10 02:52:14,494 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-10 02:52:14,494 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 75 transitions. [2019-09-10 02:52:14,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-10 02:52:14,495 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:52:14,495 INFO L399 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:52:14,495 INFO L418 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:52:14,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:52:14,496 INFO L82 PathProgramCache]: Analyzing trace with hash -106117208, now seen corresponding path program 13 times [2019-09-10 02:52:14,496 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:52:14,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:52:14,497 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 02:52:14,497 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:52:14,497 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:52:14,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:52:14,669 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2019-09-10 02:52:14,670 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:52:14,670 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:52:14,670 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:52:14,670 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:52:14,670 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:52:14,674 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 02:52:14,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:52:14,702 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:52:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:52:14,737 INFO L256 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 30 conjunts are in the unsatisfiable core [2019-09-10 02:52:14,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:52:14,762 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 0 proven. 260 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2019-09-10 02:52:14,762 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:52:19,421 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:21,551 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:23,327 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:24,735 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:25,848 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:26,699 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:27,349 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:27,798 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:28,098 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:28,280 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:28,398 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:28,467 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:28,508 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:28,550 INFO L134 CoverageAnalysis]: Checked inductivity of 598 backedges. 0 proven. 507 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2019-09-10 02:52:28,553 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:52:28,553 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 31] total 34 [2019-09-10 02:52:28,554 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:52:28,554 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-10 02:52:28,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-10 02:52:28,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=291, Invalid=831, Unknown=0, NotChecked=0, Total=1122 [2019-09-10 02:52:28,555 INFO L87 Difference]: Start difference. First operand 58 states and 75 transitions. Second operand 18 states. [2019-09-10 02:52:28,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:52:28,886 INFO L93 Difference]: Finished difference Result 63 states and 81 transitions. [2019-09-10 02:52:28,887 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-10 02:52:28,887 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 104 [2019-09-10 02:52:28,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:52:28,888 INFO L225 Difference]: With dead ends: 63 [2019-09-10 02:52:28,889 INFO L226 Difference]: Without dead ends: 61 [2019-09-10 02:52:28,892 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 179 SyntacticMatches, 27 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 600 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=739, Invalid=1517, Unknown=0, NotChecked=0, Total=2256 [2019-09-10 02:52:28,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2019-09-10 02:52:28,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2019-09-10 02:52:28,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2019-09-10 02:52:28,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 79 transitions. [2019-09-10 02:52:28,911 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 79 transitions. Word has length 104 [2019-09-10 02:52:28,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:52:28,913 INFO L475 AbstractCegarLoop]: Abstraction has 61 states and 79 transitions. [2019-09-10 02:52:28,913 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-10 02:52:28,914 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 79 transitions. [2019-09-10 02:52:28,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-09-10 02:52:28,919 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:52:28,919 INFO L399 BasicCegarLoop]: trace histogram [15, 15, 14, 14, 14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:52:28,919 INFO L418 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:52:28,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:52:28,920 INFO L82 PathProgramCache]: Analyzing trace with hash 1237836279, now seen corresponding path program 14 times [2019-09-10 02:52:28,920 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:52:28,921 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:52:28,921 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:52:28,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:52:28,922 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:52:28,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:52:29,177 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2019-09-10 02:52:29,178 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:52:29,178 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:52:29,178 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:52:29,178 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:52:29,178 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:52:29,179 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 02:52:29,193 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-10 02:52:29,193 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:52:29,244 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2019-09-10 02:52:29,244 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 02:52:29,246 INFO L256 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 32 conjunts are in the unsatisfiable core [2019-09-10 02:52:29,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:52:29,274 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 301 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2019-09-10 02:52:29,274 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:52:34,813 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:37,359 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:39,480 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:41,202 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:42,576 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:43,664 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:44,520 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:45,137 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:45,584 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:45,926 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:46,101 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:46,219 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:46,296 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:46,333 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:46,374 INFO L134 CoverageAnalysis]: Checked inductivity of 693 backedges. 0 proven. 588 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2019-09-10 02:52:46,378 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:52:46,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 33] total 36 [2019-09-10 02:52:46,378 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:52:46,379 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-10 02:52:46,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-10 02:52:46,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=326, Invalid=934, Unknown=0, NotChecked=0, Total=1260 [2019-09-10 02:52:46,380 INFO L87 Difference]: Start difference. First operand 61 states and 79 transitions. Second operand 19 states. [2019-09-10 02:52:46,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:52:46,712 INFO L93 Difference]: Finished difference Result 66 states and 85 transitions. [2019-09-10 02:52:46,712 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-09-10 02:52:46,712 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 111 [2019-09-10 02:52:46,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:52:46,714 INFO L225 Difference]: With dead ends: 66 [2019-09-10 02:52:46,714 INFO L226 Difference]: Without dead ends: 64 [2019-09-10 02:52:46,716 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 191 SyntacticMatches, 29 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 688 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=836, Invalid=1714, Unknown=0, NotChecked=0, Total=2550 [2019-09-10 02:52:46,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2019-09-10 02:52:46,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2019-09-10 02:52:46,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2019-09-10 02:52:46,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 83 transitions. [2019-09-10 02:52:46,726 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 83 transitions. Word has length 111 [2019-09-10 02:52:46,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:52:46,726 INFO L475 AbstractCegarLoop]: Abstraction has 64 states and 83 transitions. [2019-09-10 02:52:46,727 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-10 02:52:46,727 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 83 transitions. [2019-09-10 02:52:46,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2019-09-10 02:52:46,729 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:52:46,729 INFO L399 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:52:46,734 INFO L418 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:52:46,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:52:46,735 INFO L82 PathProgramCache]: Analyzing trace with hash 340319762, now seen corresponding path program 15 times [2019-09-10 02:52:46,735 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:52:46,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:52:46,736 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 02:52:46,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:52:46,736 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:52:46,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:52:46,918 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2019-09-10 02:52:46,918 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:52:46,919 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:52:46,919 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:52:46,919 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:52:46,919 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:52:46,919 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:52:46,946 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-09-10 02:52:46,946 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-09-10 02:52:46,987 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-09-10 02:52:46,988 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 02:52:46,989 INFO L256 TraceCheckSpWp]: Trace formula consists of 328 conjuncts, 34 conjunts are in the unsatisfiable core [2019-09-10 02:52:46,992 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:52:47,013 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2019-09-10 02:52:47,014 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:52:49,754 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-09-10 02:52:53,435 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:56,463 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:52:59,014 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:01,123 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:02,869 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:04,278 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:05,382 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:06,219 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:06,837 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:07,279 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:07,568 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:07,751 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:07,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:07,948 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:07,987 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:08,034 INFO L134 CoverageAnalysis]: Checked inductivity of 795 backedges. 0 proven. 675 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2019-09-10 02:53:08,037 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:53:08,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 35] total 38 [2019-09-10 02:53:08,038 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:53:08,038 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-10 02:53:08,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-10 02:53:08,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=1043, Unknown=0, NotChecked=0, Total=1406 [2019-09-10 02:53:08,039 INFO L87 Difference]: Start difference. First operand 64 states and 83 transitions. Second operand 20 states. [2019-09-10 02:53:08,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:53:08,385 INFO L93 Difference]: Finished difference Result 69 states and 89 transitions. [2019-09-10 02:53:08,385 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-09-10 02:53:08,385 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 118 [2019-09-10 02:53:08,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:53:08,387 INFO L225 Difference]: With dead ends: 69 [2019-09-10 02:53:08,387 INFO L226 Difference]: Without dead ends: 67 [2019-09-10 02:53:08,388 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 203 SyntacticMatches, 31 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 782 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=939, Invalid=1923, Unknown=0, NotChecked=0, Total=2862 [2019-09-10 02:53:08,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2019-09-10 02:53:08,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2019-09-10 02:53:08,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2019-09-10 02:53:08,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2019-09-10 02:53:08,395 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 118 [2019-09-10 02:53:08,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:53:08,396 INFO L475 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2019-09-10 02:53:08,396 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-10 02:53:08,396 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2019-09-10 02:53:08,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-09-10 02:53:08,398 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:53:08,398 INFO L399 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:53:08,398 INFO L418 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:53:08,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:53:08,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1471685645, now seen corresponding path program 16 times [2019-09-10 02:53:08,398 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:53:08,400 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:53:08,401 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 02:53:08,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:53:08,401 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:53:08,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:53:08,649 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2019-09-10 02:53:08,649 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:53:08,649 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:53:08,649 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:53:08,650 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:53:08,650 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:53:08,650 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:53:08,660 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:53:08,660 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 02:53:08,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:53:08,704 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 36 conjunts are in the unsatisfiable core [2019-09-10 02:53:08,706 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:53:08,728 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 0 proven. 392 refuted. 0 times theorem prover too weak. 512 trivial. 0 not checked. [2019-09-10 02:53:08,728 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:53:11,513 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:53:11,717 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:53:11,818 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:53:11,927 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-10 02:53:12,033 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2019-09-10 02:53:14,813 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:53:16,190 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:19,743 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:22,775 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:25,343 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:27,469 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:29,212 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:30,600 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:31,689 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:32,546 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:33,182 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:33,621 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:33,907 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:34,096 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:34,213 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:34,285 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:34,325 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:34,384 INFO L134 CoverageAnalysis]: Checked inductivity of 904 backedges. 0 proven. 768 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2019-09-10 02:53:34,387 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:53:34,387 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 37] total 40 [2019-09-10 02:53:34,388 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:53:34,388 INFO L454 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-09-10 02:53:34,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-09-10 02:53:34,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=402, Invalid=1158, Unknown=0, NotChecked=0, Total=1560 [2019-09-10 02:53:34,390 INFO L87 Difference]: Start difference. First operand 67 states and 87 transitions. Second operand 21 states. [2019-09-10 02:53:34,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:53:34,801 INFO L93 Difference]: Finished difference Result 72 states and 93 transitions. [2019-09-10 02:53:34,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-09-10 02:53:34,801 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 125 [2019-09-10 02:53:34,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:53:34,803 INFO L225 Difference]: With dead ends: 72 [2019-09-10 02:53:34,803 INFO L226 Difference]: Without dead ends: 70 [2019-09-10 02:53:34,806 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 215 SyntacticMatches, 33 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 882 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1048, Invalid=2144, Unknown=0, NotChecked=0, Total=3192 [2019-09-10 02:53:34,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-09-10 02:53:34,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2019-09-10 02:53:34,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-09-10 02:53:34,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 91 transitions. [2019-09-10 02:53:34,813 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 91 transitions. Word has length 125 [2019-09-10 02:53:34,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:53:34,814 INFO L475 AbstractCegarLoop]: Abstraction has 70 states and 91 transitions. [2019-09-10 02:53:34,814 INFO L476 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-09-10 02:53:34,814 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 91 transitions. [2019-09-10 02:53:34,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-09-10 02:53:34,815 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:53:34,815 INFO L399 BasicCegarLoop]: trace histogram [18, 18, 17, 17, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:53:34,816 INFO L418 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:53:34,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:53:34,816 INFO L82 PathProgramCache]: Analyzing trace with hash -1481368708, now seen corresponding path program 17 times [2019-09-10 02:53:34,816 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:53:34,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:53:34,817 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:53:34,817 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:53:34,817 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:53:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:53:35,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2019-09-10 02:53:35,098 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:53:35,099 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:53:35,099 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:53:35,099 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:53:35,099 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:53:35,099 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 02:53:35,133 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-10 02:53:35,133 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:53:35,209 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2019-09-10 02:53:35,210 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 02:53:35,212 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 38 conjunts are in the unsatisfiable core [2019-09-10 02:53:35,214 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:53:35,243 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 0 proven. 442 refuted. 0 times theorem prover too weak. 578 trivial. 0 not checked. [2019-09-10 02:53:35,243 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:53:38,195 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:53:38,297 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:53:38,411 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:53:38,517 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:53:38,633 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:53:38,748 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:53:38,869 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2019-09-10 02:53:39,006 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2019-09-10 02:53:41,768 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:53:41,977 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:53:42,081 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:53:42,192 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:53:42,298 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:53:42,408 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-10 02:53:42,629 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2019-09-10 02:53:43,817 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:46,377 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-09-10 02:53:46,573 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:53:47,978 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:51,525 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:54,589 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:57,128 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:53:59,251 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:01,001 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:02,408 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:03,524 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:04,368 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:04,990 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:05,428 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:05,734 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:05,921 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:06,042 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:06,120 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:06,163 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:06,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1020 backedges. 0 proven. 867 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2019-09-10 02:54:06,216 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:54:06,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 39] total 42 [2019-09-10 02:54:06,217 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:54:06,217 INFO L454 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-09-10 02:54:06,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-09-10 02:54:06,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=443, Invalid=1279, Unknown=0, NotChecked=0, Total=1722 [2019-09-10 02:54:06,218 INFO L87 Difference]: Start difference. First operand 70 states and 91 transitions. Second operand 22 states. [2019-09-10 02:54:06,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:54:06,631 INFO L93 Difference]: Finished difference Result 75 states and 97 transitions. [2019-09-10 02:54:06,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-09-10 02:54:06,631 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 132 [2019-09-10 02:54:06,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:54:06,632 INFO L225 Difference]: With dead ends: 75 [2019-09-10 02:54:06,632 INFO L226 Difference]: Without dead ends: 73 [2019-09-10 02:54:06,633 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 320 GetRequests, 227 SyntacticMatches, 35 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 988 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1163, Invalid=2377, Unknown=0, NotChecked=0, Total=3540 [2019-09-10 02:54:06,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2019-09-10 02:54:06,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2019-09-10 02:54:06,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2019-09-10 02:54:06,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 95 transitions. [2019-09-10 02:54:06,641 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 95 transitions. Word has length 132 [2019-09-10 02:54:06,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:54:06,641 INFO L475 AbstractCegarLoop]: Abstraction has 73 states and 95 transitions. [2019-09-10 02:54:06,641 INFO L476 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-09-10 02:54:06,641 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 95 transitions. [2019-09-10 02:54:06,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2019-09-10 02:54:06,642 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:54:06,643 INFO L399 BasicCegarLoop]: trace histogram [19, 19, 18, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:54:06,643 INFO L418 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:54:06,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:54:06,643 INFO L82 PathProgramCache]: Analyzing trace with hash -103968989, now seen corresponding path program 18 times [2019-09-10 02:54:06,643 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:54:06,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:54:06,644 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 02:54:06,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:54:06,644 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:54:06,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:54:06,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2019-09-10 02:54:06,880 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:54:06,880 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:54:06,880 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:54:06,880 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:54:06,880 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:54:06,880 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:54:06,891 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-09-10 02:54:06,891 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-09-10 02:54:06,941 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-09-10 02:54:06,941 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 02:54:06,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 40 conjunts are in the unsatisfiable core [2019-09-10 02:54:06,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:54:06,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 0 proven. 495 refuted. 0 times theorem prover too weak. 648 trivial. 0 not checked. [2019-09-10 02:54:06,964 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:54:09,832 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:54:09,937 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:54:10,147 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:54:10,267 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:54:10,384 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:54:10,495 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:54:10,616 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:54:10,735 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:54:10,863 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:54:10,988 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:54:11,114 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2019-09-10 02:54:11,237 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2019-09-10 02:54:14,026 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:54:14,128 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:54:14,235 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:54:14,341 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:54:14,456 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:54:14,566 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:54:14,684 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:54:14,788 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:54:14,921 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:54:15,039 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:54:15,160 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-09-10 02:54:15,269 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-09-10 02:54:15,376 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 02:54:16,771 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:19,345 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-09-10 02:54:19,745 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:54:19,847 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:54:19,957 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:54:20,065 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:54:20,174 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-10 02:54:20,276 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 02:54:21,567 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:25,725 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:29,305 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:32,332 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:34,891 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:37,023 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:38,774 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:40,174 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:41,286 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:42,122 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:42,749 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:43,194 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:43,487 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:43,672 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:43,805 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:43,878 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:43,918 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:43,972 INFO L134 CoverageAnalysis]: Checked inductivity of 1143 backedges. 0 proven. 972 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2019-09-10 02:54:43,976 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:54:43,977 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 41] total 44 [2019-09-10 02:54:43,977 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:54:43,978 INFO L454 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-09-10 02:54:43,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-09-10 02:54:43,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=486, Invalid=1406, Unknown=0, NotChecked=0, Total=1892 [2019-09-10 02:54:43,980 INFO L87 Difference]: Start difference. First operand 73 states and 95 transitions. Second operand 23 states. [2019-09-10 02:54:44,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:54:44,425 INFO L93 Difference]: Finished difference Result 78 states and 101 transitions. [2019-09-10 02:54:44,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-09-10 02:54:44,426 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 139 [2019-09-10 02:54:44,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:54:44,428 INFO L225 Difference]: With dead ends: 78 [2019-09-10 02:54:44,428 INFO L226 Difference]: Without dead ends: 76 [2019-09-10 02:54:44,429 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 239 SyntacticMatches, 37 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1100 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1284, Invalid=2622, Unknown=0, NotChecked=0, Total=3906 [2019-09-10 02:54:44,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2019-09-10 02:54:44,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2019-09-10 02:54:44,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2019-09-10 02:54:44,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 99 transitions. [2019-09-10 02:54:44,437 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 99 transitions. Word has length 139 [2019-09-10 02:54:44,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:54:44,437 INFO L475 AbstractCegarLoop]: Abstraction has 76 states and 99 transitions. [2019-09-10 02:54:44,437 INFO L476 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-09-10 02:54:44,437 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 99 transitions. [2019-09-10 02:54:44,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2019-09-10 02:54:44,438 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:54:44,439 INFO L399 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:54:44,439 INFO L418 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:54:44,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:54:44,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1432494106, now seen corresponding path program 19 times [2019-09-10 02:54:44,439 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:54:44,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:54:44,440 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 02:54:44,440 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:54:44,440 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:54:44,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:54:44,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2019-09-10 02:54:44,708 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:54:44,708 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:54:44,708 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:54:44,708 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:54:44,708 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:54:44,709 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:54:44,719 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:54:44,719 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 02:54:44,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:54:44,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 42 conjunts are in the unsatisfiable core [2019-09-10 02:54:44,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:54:44,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 0 proven. 551 refuted. 0 times theorem prover too weak. 722 trivial. 0 not checked. [2019-09-10 02:54:44,800 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:54:47,768 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:54:47,870 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:54:47,982 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:54:48,095 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:54:48,224 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:54:48,338 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:54:48,461 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:54:48,579 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:54:48,705 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:54:48,829 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:54:48,959 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:54:49,087 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:54:49,224 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:54:49,360 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:54:49,506 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2019-09-10 02:54:49,637 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2019-09-10 02:54:52,438 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:54:52,546 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:54:52,653 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:54:52,755 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:54:52,864 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:54:52,969 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:54:53,086 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:54:53,202 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:54:53,322 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:54:53,439 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:54:53,562 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:54:53,684 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:54:53,814 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:54:53,953 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:54:54,081 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-10 02:54:54,202 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2019-09-10 02:54:54,317 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-10 02:54:54,428 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2019-09-10 02:54:54,536 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2019-09-10 02:54:54,638 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 02:54:55,933 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:54:58,695 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:54:58,901 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:54:59,004 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:54:59,117 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:54:59,226 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:54:59,344 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:54:59,457 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:54:59,577 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:54:59,690 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:54:59,810 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-09-10 02:54:59,922 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-09-10 02:55:00,049 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 02:55:00,157 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2019-09-10 02:55:01,431 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:55:04,318 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:55:04,426 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:55:04,531 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:55:04,638 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:55:04,749 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:55:04,860 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-10 02:55:06,253 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:55:09,027 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:55:10,433 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:55:14,019 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:55:17,061 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:55:19,623 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:55:21,755 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:55:23,498 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:55:24,894 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:55:26,011 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:55:26,856 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:55:27,488 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:55:27,939 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:55:28,227 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:55:28,414 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:55:28,535 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:55:28,609 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:55:28,651 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:55:28,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1273 backedges. 0 proven. 1083 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2019-09-10 02:55:28,723 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:55:28,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 43] total 46 [2019-09-10 02:55:28,723 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:55:28,723 INFO L454 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-09-10 02:55:28,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-09-10 02:55:28,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=531, Invalid=1539, Unknown=0, NotChecked=0, Total=2070 [2019-09-10 02:55:28,725 INFO L87 Difference]: Start difference. First operand 76 states and 99 transitions. Second operand 24 states. [2019-09-10 02:55:29,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:55:29,210 INFO L93 Difference]: Finished difference Result 81 states and 105 transitions. [2019-09-10 02:55:29,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-09-10 02:55:29,211 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 146 [2019-09-10 02:55:29,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:55:29,213 INFO L225 Difference]: With dead ends: 81 [2019-09-10 02:55:29,213 INFO L226 Difference]: Without dead ends: 79 [2019-09-10 02:55:29,214 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 251 SyntacticMatches, 39 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1218 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1411, Invalid=2879, Unknown=0, NotChecked=0, Total=4290 [2019-09-10 02:55:29,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2019-09-10 02:55:29,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2019-09-10 02:55:29,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2019-09-10 02:55:29,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 103 transitions. [2019-09-10 02:55:29,221 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 103 transitions. Word has length 146 [2019-09-10 02:55:29,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:55:29,221 INFO L475 AbstractCegarLoop]: Abstraction has 79 states and 103 transitions. [2019-09-10 02:55:29,222 INFO L476 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-09-10 02:55:29,222 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 103 transitions. [2019-09-10 02:55:29,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-09-10 02:55:29,223 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:55:29,223 INFO L399 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:55:29,223 INFO L418 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:55:29,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:55:29,224 INFO L82 PathProgramCache]: Analyzing trace with hash -873938119, now seen corresponding path program 20 times [2019-09-10 02:55:29,224 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:55:29,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:55:29,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:55:29,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:55:29,225 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:55:29,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:55:29,583 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 0 proven. 610 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2019-09-10 02:55:29,583 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:55:29,583 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:55:29,583 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:55:29,583 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:55:29,584 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:55:29,584 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:55:29,604 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-10 02:55:29,604 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-09-10 02:55:29,682 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 21 check-sat command(s) [2019-09-10 02:55:29,683 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 02:55:29,685 INFO L256 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 44 conjunts are in the unsatisfiable core [2019-09-10 02:55:29,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:55:29,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 0 proven. 610 refuted. 0 times theorem prover too weak. 800 trivial. 0 not checked. [2019-09-10 02:55:29,718 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:55:32,385 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-09-10 02:55:32,688 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:55:32,795 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:55:32,904 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:55:33,011 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:55:33,128 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:55:33,241 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:55:33,365 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:55:33,490 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:55:33,616 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:55:33,735 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:55:33,862 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:55:33,986 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:55:34,121 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:55:34,255 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:55:34,394 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:55:34,541 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:55:34,691 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 02:55:34,831 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 02:55:34,983 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2019-09-10 02:55:35,136 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2019-09-10 02:55:38,040 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:55:38,145 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:55:38,247 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:55:38,361 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:55:38,472 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:55:38,595 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:55:38,708 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:55:38,830 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:55:38,952 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:55:39,088 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:55:39,210 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:55:39,337 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:55:39,468 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:55:39,605 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:55:39,741 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:55:39,883 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:55:40,019 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:55:40,163 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2019-09-10 02:55:40,297 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2019-09-10 02:55:40,423 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-09-10 02:55:40,549 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-09-10 02:55:40,659 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2019-09-10 02:55:40,772 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 02:55:40,879 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-09-10 02:55:40,983 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-09-10 02:55:41,094 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:55:42,325 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:55:45,118 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:55:45,324 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:55:45,429 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:55:45,549 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:55:45,656 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:55:45,774 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:55:45,890 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:55:46,009 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:55:46,129 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:55:46,256 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:55:46,388 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:55:46,518 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:55:46,647 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:55:46,782 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-10 02:55:46,905 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2019-09-10 02:55:47,024 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-10 02:55:47,138 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2019-09-10 02:55:47,241 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2019-09-10 02:55:47,346 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 02:55:48,637 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:55:51,632 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:55:51,733 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:55:51,845 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:55:51,951 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:55:52,076 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:55:52,191 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:55:52,315 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:55:52,434 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:55:52,552 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-09-10 02:55:52,664 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-09-10 02:55:52,771 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 02:55:52,873 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2019-09-10 02:55:52,978 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 02:55:54,192 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:55:57,189 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:55:57,403 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:55:57,518 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:55:57,625 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-10 02:55:59,031 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:56:01,604 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-09-10 02:56:01,902 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:56:03,181 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:56:06,757 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:56:09,779 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:56:12,332 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:56:14,463 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:56:16,220 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:56:17,618 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:56:18,725 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:56:19,580 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:56:20,213 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:56:20,664 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:56:20,958 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:56:21,148 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:56:21,273 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:56:21,349 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:56:21,391 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:56:21,458 INFO L134 CoverageAnalysis]: Checked inductivity of 1410 backedges. 0 proven. 1200 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2019-09-10 02:56:21,461 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:56:21,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 45] total 48 [2019-09-10 02:56:21,462 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:56:21,462 INFO L454 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-09-10 02:56:21,462 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-09-10 02:56:21,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=578, Invalid=1678, Unknown=0, NotChecked=0, Total=2256 [2019-09-10 02:56:21,463 INFO L87 Difference]: Start difference. First operand 79 states and 103 transitions. Second operand 25 states. [2019-09-10 02:56:22,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:56:22,019 INFO L93 Difference]: Finished difference Result 84 states and 109 transitions. [2019-09-10 02:56:22,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-09-10 02:56:22,019 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 153 [2019-09-10 02:56:22,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:56:22,020 INFO L225 Difference]: With dead ends: 84 [2019-09-10 02:56:22,021 INFO L226 Difference]: Without dead ends: 82 [2019-09-10 02:56:22,022 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 263 SyntacticMatches, 41 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1342 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1544, Invalid=3148, Unknown=0, NotChecked=0, Total=4692 [2019-09-10 02:56:22,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2019-09-10 02:56:22,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2019-09-10 02:56:22,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-09-10 02:56:22,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 107 transitions. [2019-09-10 02:56:22,040 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 107 transitions. Word has length 153 [2019-09-10 02:56:22,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:56:22,042 INFO L475 AbstractCegarLoop]: Abstraction has 82 states and 107 transitions. [2019-09-10 02:56:22,042 INFO L476 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-09-10 02:56:22,042 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 107 transitions. [2019-09-10 02:56:22,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-09-10 02:56:22,045 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:56:22,045 INFO L399 BasicCegarLoop]: trace histogram [22, 22, 21, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:56:22,045 INFO L418 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:56:22,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:56:22,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1461029712, now seen corresponding path program 21 times [2019-09-10 02:56:22,046 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:56:22,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:56:22,046 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 02:56:22,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:56:22,047 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:56:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:56:22,426 INFO L134 CoverageAnalysis]: Checked inductivity of 1554 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2019-09-10 02:56:22,426 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:56:22,426 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:56:22,426 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:56:22,426 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:56:22,426 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:56:22,426 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:56:22,437 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-09-10 02:56:22,437 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-09-10 02:56:22,493 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-09-10 02:56:22,493 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 02:56:22,494 INFO L256 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 46 conjunts are in the unsatisfiable core [2019-09-10 02:56:22,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:56:22,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1554 backedges. 0 proven. 672 refuted. 0 times theorem prover too weak. 882 trivial. 0 not checked. [2019-09-10 02:56:22,537 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:56:25,310 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:56:25,513 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:56:25,618 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:56:25,724 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:56:25,827 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:56:25,944 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:56:26,060 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:56:26,181 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:56:26,309 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:56:26,435 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:56:26,560 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:56:26,688 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:56:26,813 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:56:26,945 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:56:27,074 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:56:27,214 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:56:27,351 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:56:27,496 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 02:56:27,640 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 02:56:27,791 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:56:27,943 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:56:28,102 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 02:56:28,259 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 02:56:28,421 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-09-10 02:56:28,587 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-09-10 02:56:31,176 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-09-10 02:56:31,575 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:56:31,682 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:56:31,794 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:56:31,903 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:56:32,025 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:56:32,139 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:56:32,257 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:56:32,379 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:56:32,501 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:56:32,621 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:56:32,748 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:56:32,886 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:56:33,028 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:56:33,164 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:56:33,304 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:56:33,437 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:56:33,593 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 02:56:33,747 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 02:56:33,893 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:56:34,044 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:56:34,198 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-09-10 02:56:34,339 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2019-09-10 02:56:34,481 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2019-09-10 02:56:34,607 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-09-10 02:56:34,738 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-09-10 02:56:34,860 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-09-10 02:56:34,982 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2019-09-10 02:56:35,090 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 02:56:35,197 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-09-10 02:56:35,298 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-09-10 02:56:35,402 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:56:36,607 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:56:39,622 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:56:39,730 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:56:39,846 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:56:39,956 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:56:40,072 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:56:40,186 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:56:40,303 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:56:40,423 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:56:40,549 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:56:40,674 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:56:40,806 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:56:40,929 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:56:41,074 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:56:41,204 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:56:41,344 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:56:41,480 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:56:41,621 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2019-09-10 02:56:41,758 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2019-09-10 02:56:41,882 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-09-10 02:56:42,005 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-09-10 02:56:42,120 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2019-09-10 02:56:42,231 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 02:56:42,341 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-09-10 02:56:42,443 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-09-10 02:56:42,546 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:56:43,766 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:56:46,547 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:56:46,651 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:56:46,763 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:56:46,865 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:56:46,977 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:56:47,081 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:56:47,200 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:56:47,317 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:56:47,437 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:56:47,557 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:56:47,683 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:56:47,809 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:56:47,934 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:56:48,064 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:56:48,197 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-10 02:56:48,318 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2019-09-10 02:56:48,435 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-10 02:56:48,545 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-09-10 02:56:48,654 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 02:56:48,756 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2019-09-10 02:56:50,053 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:56:52,915 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:56:53,024 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:56:53,128 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:56:53,239 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:56:53,351 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:56:53,468 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:56:53,579 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:56:53,695 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:56:53,813 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:56:53,929 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-09-10 02:56:54,043 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-09-10 02:56:54,154 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 02:56:54,255 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2019-09-10 02:56:55,562 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:56:58,342 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:56:58,547 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:56:58,654 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:56:58,767 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:56:58,878 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:56:58,987 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-10 02:57:00,365 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:57:04,567 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:57:08,171 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:57:11,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:57:13,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:57:16,003 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:57:17,755 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:57:19,167 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:57:20,276 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:57:21,131 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:57:21,764 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:57:22,206 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:57:22,502 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:57:22,694 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:57:22,820 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:57:22,897 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:57:22,941 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:57:23,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1554 backedges. 0 proven. 1323 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2019-09-10 02:57:23,014 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:57:23,015 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26, 47] total 50 [2019-09-10 02:57:23,015 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:57:23,015 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-09-10 02:57:23,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-09-10 02:57:23,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=627, Invalid=1823, Unknown=0, NotChecked=0, Total=2450 [2019-09-10 02:57:23,016 INFO L87 Difference]: Start difference. First operand 82 states and 107 transitions. Second operand 26 states. [2019-09-10 02:57:23,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:57:23,548 INFO L93 Difference]: Finished difference Result 87 states and 113 transitions. [2019-09-10 02:57:23,553 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-09-10 02:57:23,553 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 160 [2019-09-10 02:57:23,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:57:23,554 INFO L225 Difference]: With dead ends: 87 [2019-09-10 02:57:23,554 INFO L226 Difference]: Without dead ends: 85 [2019-09-10 02:57:23,556 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 388 GetRequests, 275 SyntacticMatches, 43 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1472 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1683, Invalid=3429, Unknown=0, NotChecked=0, Total=5112 [2019-09-10 02:57:23,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2019-09-10 02:57:23,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2019-09-10 02:57:23,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2019-09-10 02:57:23,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 111 transitions. [2019-09-10 02:57:23,563 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 111 transitions. Word has length 160 [2019-09-10 02:57:23,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:57:23,563 INFO L475 AbstractCegarLoop]: Abstraction has 85 states and 111 transitions. [2019-09-10 02:57:23,564 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-09-10 02:57:23,564 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 111 transitions. [2019-09-10 02:57:23,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2019-09-10 02:57:23,565 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:57:23,565 INFO L399 BasicCegarLoop]: trace histogram [23, 23, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:57:23,565 INFO L418 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:57:23,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:57:23,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1249222577, now seen corresponding path program 22 times [2019-09-10 02:57:23,566 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:57:23,566 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:57:23,567 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 02:57:23,567 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:57:23,567 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:57:23,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:57:24,050 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2019-09-10 02:57:24,050 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:57:24,050 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:57:24,050 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:57:24,051 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:57:24,051 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:57:24,051 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 02:57:24,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:57:24,071 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:57:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:57:24,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 48 conjunts are in the unsatisfiable core [2019-09-10 02:57:24,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:57:24,181 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 737 refuted. 0 times theorem prover too weak. 968 trivial. 0 not checked. [2019-09-10 02:57:24,181 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:57:27,145 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:57:27,247 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:57:27,357 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:57:27,473 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:57:27,590 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:57:27,705 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:57:27,826 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:57:27,945 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:57:28,071 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:57:28,191 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:57:28,319 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:57:28,454 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:57:28,592 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:57:28,723 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:57:28,867 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:57:29,001 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:57:29,148 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 02:57:29,292 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 02:57:29,447 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:57:29,590 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:57:29,747 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 02:57:29,902 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 02:57:30,058 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 02:57:30,212 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 02:57:30,387 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 02:57:30,553 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 02:57:30,730 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2019-09-10 02:57:30,895 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2019-09-10 02:57:33,893 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:57:33,996 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:57:34,113 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:57:34,218 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:57:34,354 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:57:34,574 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:57:34,689 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:57:34,816 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:57:34,948 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:57:35,076 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:57:35,201 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:57:35,337 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:57:35,471 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:57:35,614 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:57:35,759 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:57:35,909 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 02:57:36,050 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 02:57:36,200 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:57:36,347 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:57:36,502 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 02:57:36,658 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 02:57:36,819 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 02:57:36,978 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 02:57:37,138 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2019-09-10 02:57:37,291 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-09-10 02:57:37,438 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-09-10 02:57:37,583 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-09-10 02:57:37,723 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2019-09-10 02:57:37,853 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-09-10 02:57:37,979 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2019-09-10 02:57:38,100 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-09-10 02:57:38,224 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 02:57:38,336 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-10 02:57:38,449 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 02:57:38,553 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-09-10 02:57:39,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:57:42,750 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:57:42,858 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:57:42,966 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:57:43,086 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:57:43,199 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:57:43,317 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:57:43,436 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:57:43,562 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:57:43,675 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:57:43,801 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:57:43,928 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:57:44,060 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:57:44,184 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:57:44,321 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:57:44,454 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:57:44,593 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:57:44,729 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:57:44,875 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 02:57:45,023 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 02:57:45,174 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:57:45,327 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:57:45,483 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-09-10 02:57:45,620 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2019-09-10 02:57:45,760 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2019-09-10 02:57:45,885 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-09-10 02:57:46,009 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-09-10 02:57:46,126 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-09-10 02:57:46,242 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2019-09-10 02:57:46,360 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 02:57:46,464 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-09-10 02:57:46,581 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-09-10 02:57:47,895 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:57:50,294 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2019-09-10 02:57:50,783 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:57:50,890 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:57:50,994 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:57:51,110 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:57:51,216 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:57:51,336 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:57:51,451 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:57:51,573 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:57:51,690 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:57:51,827 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:57:51,948 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:57:52,075 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:57:52,201 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:57:52,341 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:57:52,472 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:57:52,614 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:57:52,752 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:57:52,887 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2019-09-10 02:57:53,016 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2019-09-10 02:57:53,140 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-09-10 02:57:53,260 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-09-10 02:57:53,376 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 02:57:53,496 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-10 02:57:53,603 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 02:57:53,708 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 02:57:55,016 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:57:57,802 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:57:58,010 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:57:58,114 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:57:58,230 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:57:58,339 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:57:58,456 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:57:58,564 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:57:58,687 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:57:58,803 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:57:58,936 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:57:59,059 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:57:59,190 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:57:59,316 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:57:59,447 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-10 02:57:59,571 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2019-09-10 02:57:59,686 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-10 02:57:59,794 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2019-09-10 02:57:59,900 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2019-09-10 02:58:00,004 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2019-09-10 02:58:01,305 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:58:04,077 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:58:04,182 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:58:04,291 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:58:04,396 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:58:04,508 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:58:04,617 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:58:04,736 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:58:04,851 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:58:04,977 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:58:05,096 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:58:05,215 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-09-10 02:58:05,323 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-09-10 02:58:05,428 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 02:58:05,530 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2019-09-10 02:58:05,634 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 02:58:06,827 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:58:09,619 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:58:09,824 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:58:09,929 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:58:10,042 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:58:10,156 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:58:10,268 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-10 02:58:10,371 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 02:58:11,671 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:58:14,444 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:58:14,649 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-09-10 02:58:15,848 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:58:19,437 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:58:22,483 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:58:25,052 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:58:27,219 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:58:28,972 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:58:30,405 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:58:31,533 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:58:32,387 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:58:33,023 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:58:33,473 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:58:33,771 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:58:33,958 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:58:34,095 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:58:34,173 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:58:34,225 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:58:34,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1705 backedges. 0 proven. 1452 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2019-09-10 02:58:34,302 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:58:34,302 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 49] total 52 [2019-09-10 02:58:34,303 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:58:34,303 INFO L454 AbstractCegarLoop]: Interpolant automaton has 27 states [2019-09-10 02:58:34,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2019-09-10 02:58:34,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=678, Invalid=1974, Unknown=0, NotChecked=0, Total=2652 [2019-09-10 02:58:34,305 INFO L87 Difference]: Start difference. First operand 85 states and 111 transitions. Second operand 27 states. [2019-09-10 02:58:34,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:58:34,867 INFO L93 Difference]: Finished difference Result 90 states and 117 transitions. [2019-09-10 02:58:34,868 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-09-10 02:58:34,868 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 167 [2019-09-10 02:58:34,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:58:34,870 INFO L225 Difference]: With dead ends: 90 [2019-09-10 02:58:34,870 INFO L226 Difference]: Without dead ends: 88 [2019-09-10 02:58:34,871 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 287 SyntacticMatches, 45 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1608 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1828, Invalid=3722, Unknown=0, NotChecked=0, Total=5550 [2019-09-10 02:58:34,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2019-09-10 02:58:34,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2019-09-10 02:58:34,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2019-09-10 02:58:34,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 115 transitions. [2019-09-10 02:58:34,879 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 115 transitions. Word has length 167 [2019-09-10 02:58:34,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:58:34,879 INFO L475 AbstractCegarLoop]: Abstraction has 88 states and 115 transitions. [2019-09-10 02:58:34,879 INFO L476 AbstractCegarLoop]: Interpolant automaton has 27 states. [2019-09-10 02:58:34,880 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 115 transitions. [2019-09-10 02:58:34,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-09-10 02:58:34,881 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:58:34,881 INFO L399 BasicCegarLoop]: trace histogram [24, 24, 23, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:58:34,881 INFO L418 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:58:34,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:58:34,882 INFO L82 PathProgramCache]: Analyzing trace with hash 1284144570, now seen corresponding path program 23 times [2019-09-10 02:58:34,882 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:58:34,882 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:58:34,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:58:34,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:58:34,883 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:58:34,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:58:35,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1863 backedges. 0 proven. 805 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2019-09-10 02:58:35,244 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:58:35,245 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:58:35,245 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:58:35,245 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:58:35,245 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:58:35,245 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:58:35,255 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-10 02:58:35,255 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-09-10 02:58:35,339 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2019-09-10 02:58:35,339 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 02:58:35,341 INFO L256 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 50 conjunts are in the unsatisfiable core [2019-09-10 02:58:35,344 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:58:35,390 INFO L134 CoverageAnalysis]: Checked inductivity of 1863 backedges. 0 proven. 805 refuted. 0 times theorem prover too weak. 1058 trivial. 0 not checked. [2019-09-10 02:58:35,390 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:58:35,896 WARN L188 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2019-09-10 02:58:38,554 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:58:38,655 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:58:38,862 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:58:38,971 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:58:39,078 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:58:39,199 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:58:39,318 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:58:39,437 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:58:39,559 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:58:39,680 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:58:39,803 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:58:39,928 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:58:40,055 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:58:40,197 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:58:40,332 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:58:40,482 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:58:40,620 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:58:40,774 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 02:58:40,914 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 02:58:41,062 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:58:41,209 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:58:41,372 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 02:58:41,532 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 02:58:41,693 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 02:58:41,852 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 02:58:42,028 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 02:58:42,190 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 02:58:42,358 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 02:58:42,534 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 02:58:42,712 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 02:58:42,887 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 02:58:43,068 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-09-10 02:58:43,253 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-09-10 02:58:46,156 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:58:46,266 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:58:46,373 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:58:46,486 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:58:46,594 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:58:46,708 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:58:46,822 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:58:46,942 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:58:47,056 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:58:47,185 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:58:47,308 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:58:47,435 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:58:47,560 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:58:47,697 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:58:47,831 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:58:47,975 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:58:48,111 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:58:48,251 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 02:58:48,399 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 02:58:48,550 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:58:48,708 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:58:48,865 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 02:58:49,011 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 02:58:49,171 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 02:58:49,329 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 02:58:49,502 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 02:58:49,670 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 02:58:49,844 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 02:58:50,023 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 02:58:50,195 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-09-10 02:58:50,344 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2019-09-10 02:58:50,498 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-09-10 02:58:50,651 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-09-10 02:58:50,794 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2019-09-10 02:58:50,937 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2019-09-10 02:58:51,073 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2019-09-10 02:58:51,205 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-10 02:58:51,338 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2019-09-10 02:58:51,460 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-10 02:58:51,581 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-09-10 02:58:51,694 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-10 02:58:51,805 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 02:58:51,909 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-09-10 02:58:52,010 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:58:53,236 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:58:55,900 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-09-10 02:58:56,004 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:58:56,208 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:58:56,416 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:58:56,520 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:58:56,635 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:58:56,750 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:58:56,868 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:58:56,989 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:58:57,118 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:58:57,244 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:58:57,376 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:58:57,506 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:58:57,643 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:58:57,779 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:58:57,922 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:58:58,059 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:58:58,207 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 02:58:58,353 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 02:58:58,505 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:58:58,654 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:58:58,813 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 02:58:58,971 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 02:58:59,133 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 02:58:59,292 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 02:58:59,471 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2019-09-10 02:58:59,623 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-09-10 02:58:59,766 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-09-10 02:58:59,904 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-09-10 02:59:00,040 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2019-09-10 02:59:00,172 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-09-10 02:59:00,304 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-09-10 02:59:00,444 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-09-10 02:59:00,568 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2019-09-10 02:59:00,685 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 02:59:00,798 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-09-10 02:59:00,907 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-09-10 02:59:01,011 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:59:02,227 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:59:05,012 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:59:05,114 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:59:05,220 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:59:05,328 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:59:05,451 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:59:05,558 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:59:05,675 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:59:05,788 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:59:05,907 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:59:06,025 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:59:06,154 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:59:06,280 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:59:06,400 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:59:06,528 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:59:06,663 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:59:06,789 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:59:06,929 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:59:07,070 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:59:07,221 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 02:59:07,363 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 02:59:07,515 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:59:07,657 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 02:59:07,808 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-09-10 02:59:07,949 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2019-09-10 02:59:08,081 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2019-09-10 02:59:08,212 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-09-10 02:59:08,338 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-09-10 02:59:08,462 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-09-10 02:59:08,580 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 02:59:08,706 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-10 02:59:08,814 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-09-10 02:59:08,917 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 02:59:09,018 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2019-09-10 02:59:10,242 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:59:13,134 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:59:13,244 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:59:13,351 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:59:13,460 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:59:13,571 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:59:13,691 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:59:13,800 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:59:13,919 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:59:14,048 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:59:14,174 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:59:14,294 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:59:14,425 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:59:14,555 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:59:14,693 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:59:14,824 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 02:59:14,962 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:59:15,101 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 02:59:15,242 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2019-09-10 02:59:15,377 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2019-09-10 02:59:15,502 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-09-10 02:59:15,623 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-09-10 02:59:15,757 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2019-09-10 02:59:15,870 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 02:59:15,980 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-09-10 02:59:16,081 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-09-10 02:59:17,393 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:59:20,269 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:59:20,375 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:59:20,479 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:59:20,588 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:59:20,696 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:59:20,811 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:59:20,924 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:59:21,042 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:59:21,162 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:59:21,288 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:59:21,410 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 02:59:21,548 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:59:21,674 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 02:59:21,801 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-10 02:59:21,920 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2019-09-10 02:59:22,032 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2019-09-10 02:59:22,145 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 02:59:22,250 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-09-10 02:59:23,668 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:59:26,445 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 02:59:26,652 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:59:26,755 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:59:26,867 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:59:26,978 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:59:27,096 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:59:27,213 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 02:59:27,329 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:59:27,465 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 02:59:27,587 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-09-10 02:59:27,697 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-09-10 02:59:27,802 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 02:59:27,904 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2019-09-10 02:59:29,215 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:59:31,618 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2019-09-10 02:59:32,307 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 02:59:32,420 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:59:32,533 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 02:59:32,642 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-10 02:59:32,743 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 02:59:34,046 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:59:38,231 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:59:41,833 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:59:44,912 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:59:47,484 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:59:49,606 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:59:51,366 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:59:52,790 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:59:53,898 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:59:54,778 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:59:55,405 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:59:55,847 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:59:56,147 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:59:56,342 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:59:56,471 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:59:56,548 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:59:56,593 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:59:56,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1863 backedges. 0 proven. 1587 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2019-09-10 02:59:56,679 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 02:59:56,679 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 28, 51] total 54 [2019-09-10 02:59:56,679 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 02:59:56,679 INFO L454 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-09-10 02:59:56,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-09-10 02:59:56,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=731, Invalid=2131, Unknown=0, NotChecked=0, Total=2862 [2019-09-10 02:59:56,680 INFO L87 Difference]: Start difference. First operand 88 states and 115 transitions. Second operand 28 states. [2019-09-10 02:59:57,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:59:57,294 INFO L93 Difference]: Finished difference Result 93 states and 121 transitions. [2019-09-10 02:59:57,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-09-10 02:59:57,295 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 174 [2019-09-10 02:59:57,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:59:57,296 INFO L225 Difference]: With dead ends: 93 [2019-09-10 02:59:57,296 INFO L226 Difference]: Without dead ends: 91 [2019-09-10 02:59:57,297 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 422 GetRequests, 299 SyntacticMatches, 47 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1750 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=1979, Invalid=4027, Unknown=0, NotChecked=0, Total=6006 [2019-09-10 02:59:57,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2019-09-10 02:59:57,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2019-09-10 02:59:57,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2019-09-10 02:59:57,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 119 transitions. [2019-09-10 02:59:57,306 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 119 transitions. Word has length 174 [2019-09-10 02:59:57,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:59:57,307 INFO L475 AbstractCegarLoop]: Abstraction has 91 states and 119 transitions. [2019-09-10 02:59:57,307 INFO L476 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-09-10 02:59:57,307 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 119 transitions. [2019-09-10 02:59:57,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2019-09-10 02:59:57,308 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:59:57,308 INFO L399 BasicCegarLoop]: trace histogram [25, 25, 24, 24, 24, 24, 24, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:59:57,309 INFO L418 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:59:57,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:59:57,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1205012069, now seen corresponding path program 24 times [2019-09-10 02:59:57,309 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:59:57,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:59:57,310 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 02:59:57,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:59:57,310 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:59:57,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:59:57,683 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 0 proven. 876 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2019-09-10 02:59:57,683 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:59:57,683 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 02:59:57,683 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 02:59:57,683 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:59:57,683 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:59:57,683 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 02:59:57,694 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST [2019-09-10 02:59:57,694 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder TERMS_WITH_SMALL_CONSTANTS_FIRST (IT: FPandBP) [2019-09-10 02:59:57,766 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-09-10 02:59:57,766 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 02:59:57,769 INFO L256 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 52 conjunts are in the unsatisfiable core [2019-09-10 02:59:57,771 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:59:57,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 0 proven. 876 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2019-09-10 02:59:57,821 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 03:00:00,694 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:00:00,801 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:00:00,902 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:00:01,026 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:00:01,132 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:00:01,251 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:00:01,367 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:00:01,489 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:00:01,609 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:00:01,740 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:00:01,866 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:00:02,001 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:00:02,129 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:00:02,269 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:00:02,398 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:00:02,536 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:00:02,678 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:00:02,827 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:00:02,972 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:00:03,125 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:00:03,274 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:00:03,447 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:00:03,600 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:00:03,766 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:00:03,923 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:00:04,093 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:00:04,254 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:00:04,433 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:00:04,600 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:00:04,780 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 03:00:04,956 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 03:00:05,141 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:00:05,329 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:00:05,518 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-10 03:00:05,710 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-10 03:00:05,919 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-09-10 03:00:06,112 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-09-10 03:00:08,422 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-09-10 03:00:08,996 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:00:09,103 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:00:09,206 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:00:09,319 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:00:09,430 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:00:09,541 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:00:09,654 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:00:09,775 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:00:09,889 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:00:10,016 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:00:10,141 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:00:10,271 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:00:10,394 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:00:10,534 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:00:10,667 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:00:10,810 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:00:10,965 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:00:11,113 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:00:11,252 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:00:11,402 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:00:11,548 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:00:11,704 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:00:11,858 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:00:12,020 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:00:12,179 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:00:12,351 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:00:12,519 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:00:12,695 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:00:12,865 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:00:13,049 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 03:00:13,223 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 03:00:13,398 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:00:13,596 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:00:13,784 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-09-10 03:00:13,958 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-09-10 03:00:14,119 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-09-10 03:00:14,281 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-09-10 03:00:14,433 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2019-09-10 03:00:14,580 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-09-10 03:00:14,728 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-09-10 03:00:14,868 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2019-09-10 03:00:15,002 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2019-09-10 03:00:15,130 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2019-09-10 03:00:15,256 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-09-10 03:00:15,378 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-09-10 03:00:15,495 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2019-09-10 03:00:15,606 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 03:00:15,713 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-09-10 03:00:15,818 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-09-10 03:00:16,112 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:00:17,133 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:00:20,128 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:00:20,231 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:00:20,340 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:00:20,450 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:00:20,570 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:00:20,680 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:00:20,803 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:00:20,919 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:00:21,046 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:00:21,170 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:00:21,298 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:00:21,427 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:00:21,564 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:00:21,697 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:00:21,849 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:00:21,981 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:00:22,130 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:00:22,274 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:00:22,422 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:00:22,574 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:00:22,733 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:00:22,883 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:00:23,047 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:00:23,205 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:00:23,378 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:00:23,545 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:00:23,722 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:00:23,885 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:00:24,057 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-09-10 03:00:24,222 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2019-09-10 03:00:24,382 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-09-10 03:00:24,545 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-09-10 03:00:24,697 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2019-09-10 03:00:24,835 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2019-09-10 03:00:24,972 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2019-09-10 03:00:25,105 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-10 03:00:25,231 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2019-09-10 03:00:25,356 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-10 03:00:25,473 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-09-10 03:00:25,585 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:00:25,693 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2019-09-10 03:00:25,794 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:00:27,099 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:00:30,100 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:00:30,210 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:00:30,317 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:00:30,447 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:00:30,563 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:00:30,672 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:00:30,796 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:00:30,916 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:00:31,042 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:00:31,167 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:00:31,296 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:00:31,423 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:00:31,558 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:00:31,692 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:00:31,831 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:00:31,967 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:00:32,117 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:00:32,259 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:00:32,402 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:00:32,553 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:00:32,717 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:00:32,868 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:00:33,030 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:00:33,188 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:00:33,370 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2019-09-10 03:00:33,522 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-09-10 03:00:33,671 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-09-10 03:00:33,812 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-09-10 03:00:33,950 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2019-09-10 03:00:34,083 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-09-10 03:00:34,209 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2019-09-10 03:00:34,328 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-09-10 03:00:34,446 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-09-10 03:00:34,558 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:00:34,666 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-09-10 03:00:34,771 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-09-10 03:00:36,059 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:00:38,935 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:00:39,042 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:00:39,252 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:00:39,358 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:00:39,478 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:00:39,610 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:00:39,727 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:00:39,841 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:00:39,965 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:00:40,084 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:00:40,215 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:00:40,337 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:00:40,472 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:00:40,603 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:00:40,748 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:00:40,887 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:00:41,040 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:00:41,182 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:00:41,331 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:00:41,478 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:00:41,629 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-09-10 03:00:41,770 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2019-09-10 03:00:41,904 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2019-09-10 03:00:42,032 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-09-10 03:00:42,155 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-09-10 03:00:42,277 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-09-10 03:00:42,395 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:00:42,504 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-10 03:00:42,616 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:00:42,735 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2019-09-10 03:00:44,047 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:00:46,809 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:00:47,016 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:00:47,118 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:00:47,230 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:00:47,340 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:00:47,458 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:00:47,570 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:00:47,693 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:00:47,811 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:00:47,938 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:00:48,059 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:00:48,189 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:00:48,317 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:00:48,448 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:00:48,583 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:00:48,719 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:00:48,856 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:00:48,992 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2019-09-10 03:00:49,121 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2019-09-10 03:00:49,262 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-09-10 03:00:49,385 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-09-10 03:00:49,503 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2019-09-10 03:00:49,614 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 03:00:49,721 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-09-10 03:00:49,825 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-09-10 03:00:51,119 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:00:53,893 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:00:54,098 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:00:54,202 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:00:54,315 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:00:54,428 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:00:54,543 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:00:54,654 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:00:54,777 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:00:54,896 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:00:55,027 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:00:55,144 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:00:55,303 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:00:55,428 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:00:55,559 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-10 03:00:55,676 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2019-09-10 03:00:55,792 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-10 03:00:55,903 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2019-09-10 03:00:56,025 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2019-09-10 03:00:56,127 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:00:57,425 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:01:00,414 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:01:00,515 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:01:00,625 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:01:00,732 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:01:00,844 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:01:00,958 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:01:01,078 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:01:01,194 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:01:01,316 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-09-10 03:01:01,432 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-09-10 03:01:01,541 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:01:01,644 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2019-09-10 03:01:02,939 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:01:05,716 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:01:05,923 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:01:06,025 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:01:06,137 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:01:06,241 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:01:06,348 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-10 03:01:06,450 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:01:06,655 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2019-09-10 03:01:07,765 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:01:10,348 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-09-10 03:01:10,645 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:01:11,926 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:01:15,525 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:01:18,595 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:01:21,168 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:01:23,331 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:01:25,094 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:01:26,503 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:01:27,614 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:01:28,465 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:01:29,111 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:01:29,569 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:01:29,887 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:01:30,078 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:01:30,205 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:01:30,286 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:01:30,333 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:01:30,460 INFO L134 CoverageAnalysis]: Checked inductivity of 2028 backedges. 0 proven. 1728 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2019-09-10 03:01:30,473 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 03:01:30,473 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 53] total 56 [2019-09-10 03:01:30,474 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 03:01:30,474 INFO L454 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-09-10 03:01:30,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-09-10 03:01:30,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=786, Invalid=2294, Unknown=0, NotChecked=0, Total=3080 [2019-09-10 03:01:30,476 INFO L87 Difference]: Start difference. First operand 91 states and 119 transitions. Second operand 29 states. [2019-09-10 03:01:31,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 03:01:31,094 INFO L93 Difference]: Finished difference Result 96 states and 125 transitions. [2019-09-10 03:01:31,094 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2019-09-10 03:01:31,094 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 181 [2019-09-10 03:01:31,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 03:01:31,096 INFO L225 Difference]: With dead ends: 96 [2019-09-10 03:01:31,096 INFO L226 Difference]: Without dead ends: 94 [2019-09-10 03:01:31,099 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 311 SyntacticMatches, 49 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1898 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=2136, Invalid=4344, Unknown=0, NotChecked=0, Total=6480 [2019-09-10 03:01:31,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2019-09-10 03:01:31,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2019-09-10 03:01:31,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2019-09-10 03:01:31,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 123 transitions. [2019-09-10 03:01:31,108 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 123 transitions. Word has length 181 [2019-09-10 03:01:31,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 03:01:31,109 INFO L475 AbstractCegarLoop]: Abstraction has 94 states and 123 transitions. [2019-09-10 03:01:31,109 INFO L476 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-09-10 03:01:31,109 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 123 transitions. [2019-09-10 03:01:31,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-09-10 03:01:31,110 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 03:01:31,110 INFO L399 BasicCegarLoop]: trace histogram [26, 26, 25, 25, 25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 03:01:31,110 INFO L418 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 03:01:31,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 03:01:31,111 INFO L82 PathProgramCache]: Analyzing trace with hash -1312024796, now seen corresponding path program 25 times [2019-09-10 03:01:31,111 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 03:01:31,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 03:01:31,113 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 03:01:31,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 03:01:31,113 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 03:01:31,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 03:01:31,585 INFO L134 CoverageAnalysis]: Checked inductivity of 2200 backedges. 0 proven. 950 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2019-09-10 03:01:31,585 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 03:01:31,585 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 03:01:31,586 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 03:01:31,586 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 03:01:31,586 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 03:01:31,586 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 03:01:31,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 03:01:31,601 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 03:01:31,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 03:01:31,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 54 conjunts are in the unsatisfiable core [2019-09-10 03:01:31,664 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 03:01:31,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2200 backedges. 0 proven. 950 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2019-09-10 03:01:31,705 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 03:01:34,711 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:01:34,813 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:01:34,922 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:01:35,031 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:01:35,149 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:01:35,261 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:01:35,383 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:01:35,503 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:01:35,628 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:01:35,753 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:01:35,879 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:01:36,007 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:01:36,148 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:01:36,282 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:01:36,422 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:01:36,563 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:01:36,726 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:01:36,872 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:01:37,022 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:01:37,168 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:01:37,325 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:01:37,479 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:01:37,641 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:01:37,801 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:01:37,964 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:01:38,130 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:01:38,302 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:01:38,475 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:01:38,654 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 03:01:38,832 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 03:01:39,024 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:01:39,201 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:01:39,392 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-10 03:01:39,586 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-10 03:01:39,784 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-09-10 03:01:39,978 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-09-10 03:01:40,188 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2019-09-10 03:01:40,391 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2019-09-10 03:01:40,623 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-09-10 03:01:40,830 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-09-10 03:01:43,824 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:01:43,931 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:01:44,042 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:01:44,150 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:01:44,264 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:01:44,376 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:01:44,517 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:01:44,636 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:01:44,766 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:01:44,889 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:01:45,016 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:01:45,146 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:01:45,286 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:01:45,417 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:01:45,560 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:01:45,695 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:01:45,838 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:01:45,981 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:01:46,129 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:01:46,282 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:01:46,442 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:01:46,595 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:01:46,761 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:01:46,919 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:01:47,081 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:01:47,244 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:01:47,416 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:01:47,580 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:01:47,759 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 03:01:47,932 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 03:01:48,116 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:01:48,301 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:01:48,508 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-10 03:01:48,689 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-10 03:01:48,887 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-09-10 03:01:49,078 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-09-10 03:01:49,270 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-09-10 03:01:49,452 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-09-10 03:01:49,628 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-09-10 03:01:49,809 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-09-10 03:01:49,981 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-09-10 03:01:50,138 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-09-10 03:01:50,294 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2019-09-10 03:01:50,442 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-09-10 03:01:50,590 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2019-09-10 03:01:50,727 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2019-09-10 03:01:50,864 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2019-09-10 03:01:50,997 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-10 03:01:51,128 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2019-09-10 03:01:51,249 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-09-10 03:01:51,369 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-09-10 03:01:51,481 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:01:51,590 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2019-09-10 03:01:51,695 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:01:51,797 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2019-09-10 03:01:53,037 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:01:55,911 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:01:56,018 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:01:56,123 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:01:56,233 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:01:56,342 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:01:56,457 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:01:56,572 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:01:56,713 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:01:56,829 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:01:56,957 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:01:57,081 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:01:57,215 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:01:57,343 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:01:57,484 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:01:57,619 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:01:57,758 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:01:57,894 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:01:58,042 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:01:58,185 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:01:58,336 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:01:58,486 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:01:58,642 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:01:58,793 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:01:58,958 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:01:59,120 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:01:59,280 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:01:59,450 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:01:59,622 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:01:59,795 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:01:59,975 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 03:02:00,151 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 03:02:00,334 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:02:00,516 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:02:00,722 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-09-10 03:02:00,891 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-09-10 03:02:01,056 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-09-10 03:02:01,219 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-09-10 03:02:01,379 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2019-09-10 03:02:01,531 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-09-10 03:02:01,679 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2019-09-10 03:02:01,824 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2019-09-10 03:02:01,962 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2019-09-10 03:02:02,095 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2019-09-10 03:02:02,223 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-09-10 03:02:02,344 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-09-10 03:02:02,461 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-09-10 03:02:02,576 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:02:02,687 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2019-09-10 03:02:02,792 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-09-10 03:02:04,107 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:02:07,088 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:02:07,191 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:02:07,301 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:02:07,409 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:02:07,529 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:02:07,642 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:02:07,761 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:02:07,881 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:02:08,008 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:02:08,129 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:02:08,254 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:02:08,383 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:02:08,522 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:02:08,652 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:02:08,797 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:02:08,936 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:02:09,087 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:02:09,230 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:02:09,382 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:02:09,543 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:02:09,705 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:02:09,857 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:02:10,018 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:02:10,172 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:02:10,344 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:02:10,512 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:02:10,686 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:02:10,855 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:02:11,028 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-09-10 03:02:11,189 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2019-09-10 03:02:11,346 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-09-10 03:02:11,498 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-09-10 03:02:11,647 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2019-09-10 03:02:11,786 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2019-09-10 03:02:11,925 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2019-09-10 03:02:12,056 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-09-10 03:02:12,183 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-09-10 03:02:12,307 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-09-10 03:02:12,423 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:02:12,532 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-10 03:02:12,641 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:02:12,742 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2019-09-10 03:02:14,071 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:02:16,858 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:02:17,068 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:02:17,275 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:02:17,382 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:02:17,502 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:02:17,616 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:02:17,737 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:02:17,854 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:02:17,981 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:02:18,105 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:02:18,237 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:02:18,366 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:02:18,522 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:02:18,659 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:02:18,800 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:02:18,938 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:02:19,090 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:02:19,231 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:02:19,379 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:02:19,529 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:02:19,689 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:02:19,844 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:02:20,001 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:02:20,159 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:02:20,317 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2019-09-10 03:02:20,467 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-09-10 03:02:20,610 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-09-10 03:02:20,755 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-09-10 03:02:20,887 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2019-09-10 03:02:21,018 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2019-09-10 03:02:21,144 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2019-09-10 03:02:21,262 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-09-10 03:02:21,379 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:02:21,491 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 03:02:21,599 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-09-10 03:02:21,704 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-09-10 03:02:23,052 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:02:25,637 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-09-10 03:02:25,934 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:02:26,042 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:02:26,147 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:02:26,255 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:02:26,368 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:02:26,485 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:02:26,597 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:02:26,719 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:02:26,840 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:02:26,969 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:02:27,092 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:02:27,220 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:02:27,346 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:02:27,481 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:02:27,612 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:02:27,776 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:02:27,914 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:02:28,066 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:02:28,213 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:02:28,366 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:02:28,519 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:02:28,673 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-09-10 03:02:28,809 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2019-09-10 03:02:28,945 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2019-09-10 03:02:29,077 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-09-10 03:02:29,203 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2019-09-10 03:02:29,328 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-09-10 03:02:29,445 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:02:29,558 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-10 03:02:29,670 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:02:29,775 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2019-09-10 03:02:29,875 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2019-09-10 03:02:31,093 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:02:33,884 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:02:34,086 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:02:34,190 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:02:34,301 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:02:34,410 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:02:34,527 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:02:34,639 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:02:34,760 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:02:34,876 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:02:35,006 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:02:35,130 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:02:35,260 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:02:35,392 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:02:35,527 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:02:35,656 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:02:35,791 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:02:35,927 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:02:36,065 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2019-09-10 03:02:36,200 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2019-09-10 03:02:36,326 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-10 03:02:36,446 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2019-09-10 03:02:36,564 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-09-10 03:02:36,675 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-09-10 03:02:36,784 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-10 03:02:36,889 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:02:37,280 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:02:38,224 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:02:40,992 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:02:41,198 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:02:41,301 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:02:41,414 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:02:41,521 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:02:41,635 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:02:41,749 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:02:41,870 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:02:41,988 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:02:42,114 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:02:42,250 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:02:42,378 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:02:42,504 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:02:42,633 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-10 03:02:42,753 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2019-09-10 03:02:42,867 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-10 03:02:42,976 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2019-09-10 03:02:43,082 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2019-09-10 03:02:43,188 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:02:44,496 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:02:47,280 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:02:47,382 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:02:47,589 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:02:47,703 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:02:47,812 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:02:47,927 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:02:48,041 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:02:48,165 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:02:48,283 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:02:48,401 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-09-10 03:02:48,517 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-09-10 03:02:48,621 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:02:48,723 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2019-09-10 03:02:50,021 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:02:52,437 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2019-09-10 03:02:53,030 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:02:53,135 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:02:53,250 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:02:53,361 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:02:53,468 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-10 03:02:53,571 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:02:54,860 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:02:57,542 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-09-10 03:02:59,044 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:03:02,621 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:03:05,690 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:03:08,261 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:03:10,396 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:03:12,140 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:03:13,583 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:03:14,713 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:03:15,557 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:03:16,187 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:03:16,633 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:03:16,928 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:03:17,123 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:03:17,255 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:03:17,336 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:03:17,382 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:03:17,461 INFO L134 CoverageAnalysis]: Checked inductivity of 2200 backedges. 0 proven. 1875 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2019-09-10 03:03:17,465 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 03:03:17,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30, 55] total 58 [2019-09-10 03:03:17,465 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 03:03:17,466 INFO L454 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-09-10 03:03:17,466 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-09-10 03:03:17,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=843, Invalid=2463, Unknown=0, NotChecked=0, Total=3306 [2019-09-10 03:03:17,467 INFO L87 Difference]: Start difference. First operand 94 states and 123 transitions. Second operand 30 states. [2019-09-10 03:03:18,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 03:03:18,127 INFO L93 Difference]: Finished difference Result 99 states and 129 transitions. [2019-09-10 03:03:18,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-09-10 03:03:18,127 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 188 [2019-09-10 03:03:18,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 03:03:18,129 INFO L225 Difference]: With dead ends: 99 [2019-09-10 03:03:18,129 INFO L226 Difference]: Without dead ends: 97 [2019-09-10 03:03:18,130 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 323 SyntacticMatches, 51 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2052 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=2299, Invalid=4673, Unknown=0, NotChecked=0, Total=6972 [2019-09-10 03:03:18,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2019-09-10 03:03:18,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2019-09-10 03:03:18,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-09-10 03:03:18,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 127 transitions. [2019-09-10 03:03:18,140 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 127 transitions. Word has length 188 [2019-09-10 03:03:18,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 03:03:18,141 INFO L475 AbstractCegarLoop]: Abstraction has 97 states and 127 transitions. [2019-09-10 03:03:18,141 INFO L476 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-09-10 03:03:18,141 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 127 transitions. [2019-09-10 03:03:18,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2019-09-10 03:03:18,142 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 03:03:18,142 INFO L399 BasicCegarLoop]: trace histogram [27, 27, 26, 26, 26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 03:03:18,143 INFO L418 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 03:03:18,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 03:03:18,143 INFO L82 PathProgramCache]: Analyzing trace with hash 461591931, now seen corresponding path program 26 times [2019-09-10 03:03:18,143 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 03:03:18,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 03:03:18,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 03:03:18,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 03:03:18,144 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 03:03:18,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 03:03:18,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2379 backedges. 0 proven. 1027 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked. [2019-09-10 03:03:18,710 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 03:03:18,710 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 03:03:18,710 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 03:03:18,710 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 03:03:18,710 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 03:03:18,711 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 03:03:18,732 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-10 03:03:18,733 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 03:03:18,837 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 27 check-sat command(s) [2019-09-10 03:03:18,837 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 03:03:18,840 INFO L256 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 56 conjunts are in the unsatisfiable core [2019-09-10 03:03:18,843 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 03:03:18,888 INFO L134 CoverageAnalysis]: Checked inductivity of 2379 backedges. 0 proven. 1027 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked. [2019-09-10 03:03:18,889 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 03:03:21,640 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:03:21,741 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:03:21,853 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:03:21,959 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:03:22,070 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:03:22,179 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:03:22,296 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:03:22,409 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:03:22,533 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:03:22,652 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:03:22,779 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:03:22,899 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:03:23,031 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:03:23,158 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:03:23,296 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:03:23,421 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:03:23,589 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:03:23,728 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:03:23,875 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:03:24,022 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:03:24,180 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:03:24,327 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:03:24,488 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:03:24,641 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:03:24,806 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:03:24,962 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:03:25,128 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:03:25,294 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:03:25,468 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:03:25,640 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:03:25,818 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 03:03:25,990 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 03:03:26,177 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:03:26,361 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:03:26,560 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-10 03:03:26,744 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-10 03:03:26,944 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-09-10 03:03:27,138 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-09-10 03:03:27,339 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2019-09-10 03:03:27,546 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2019-09-10 03:03:27,753 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-10 03:03:27,958 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-10 03:03:28,177 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-09-10 03:03:28,395 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-09-10 03:03:28,643 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2019-09-10 03:03:28,861 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2019-09-10 03:03:31,656 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:03:31,758 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:03:31,866 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:03:31,971 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:03:32,082 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:03:32,189 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:03:32,309 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:03:32,427 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:03:32,551 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:03:32,669 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:03:32,798 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:03:32,916 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:03:33,046 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:03:33,171 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:03:33,313 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:03:33,443 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:03:33,586 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:03:33,720 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:03:33,865 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:03:34,005 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:03:34,190 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:03:34,339 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:03:34,496 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:03:34,646 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:03:34,805 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:03:34,968 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:03:35,134 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:03:35,296 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:03:35,472 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:03:35,641 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:03:35,825 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 03:03:36,003 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 03:03:36,183 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:03:36,356 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:03:36,549 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-10 03:03:36,733 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-10 03:03:36,930 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-09-10 03:03:37,120 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-09-10 03:03:37,329 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2019-09-10 03:03:37,535 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2019-09-10 03:03:37,745 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-10 03:03:37,951 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-10 03:03:38,163 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2019-09-10 03:03:38,356 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 180 [2019-09-10 03:03:38,551 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-09-10 03:03:38,737 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-09-10 03:03:38,920 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-09-10 03:03:39,092 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2019-09-10 03:03:39,291 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 160 [2019-09-10 03:03:39,462 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2019-09-10 03:03:39,624 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-09-10 03:03:39,777 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-09-10 03:03:39,929 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 145 [2019-09-10 03:03:40,071 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 142 [2019-09-10 03:03:40,210 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2019-09-10 03:03:40,347 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-10 03:03:40,479 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2019-09-10 03:03:40,605 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2019-09-10 03:03:40,726 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:03:40,844 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-10 03:03:40,957 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:03:41,064 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-09-10 03:03:42,407 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:03:45,131 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2019-09-10 03:03:45,333 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:03:45,441 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:03:45,547 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:03:45,658 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:03:45,768 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:03:45,889 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:03:46,003 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:03:46,122 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:03:46,244 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:03:46,370 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:03:46,494 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:03:46,623 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:03:46,747 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:03:46,884 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:03:47,020 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:03:47,155 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:03:47,295 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:03:47,443 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:03:47,584 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:03:47,733 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:03:47,885 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:03:48,042 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:03:48,196 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:03:48,362 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:03:48,521 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:03:48,692 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:03:48,853 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:03:49,028 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:03:49,193 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:03:49,373 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 03:03:49,555 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 03:03:49,733 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:03:49,919 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:03:50,113 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-10 03:03:50,298 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-10 03:03:50,522 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-09-10 03:03:50,721 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2019-09-10 03:03:50,918 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-09-10 03:03:51,102 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-09-10 03:03:51,281 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-09-10 03:03:51,451 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2019-09-10 03:03:51,619 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-09-10 03:03:51,782 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-09-10 03:03:51,938 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2019-09-10 03:03:52,090 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-09-10 03:03:52,237 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2019-09-10 03:03:52,377 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2019-09-10 03:03:52,510 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2019-09-10 03:03:52,637 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-10 03:03:52,765 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2019-09-10 03:03:52,892 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-10 03:03:53,008 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2019-09-10 03:03:53,123 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:03:53,232 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:03:53,334 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-09-10 03:03:54,653 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:03:57,469 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:03:57,672 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:03:57,780 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:03:57,892 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:03:58,003 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:03:58,117 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:03:58,232 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:03:58,355 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:03:58,469 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:03:58,594 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:03:58,717 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:03:58,841 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:03:58,969 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:03:59,103 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:03:59,234 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:03:59,374 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:03:59,516 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:03:59,665 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:03:59,806 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:03:59,957 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:04:00,107 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:04:00,269 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:04:00,425 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:04:00,584 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:04:00,743 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:04:00,911 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:04:01,074 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:04:01,248 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:04:01,424 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:04:01,602 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 03:04:01,773 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 122 [2019-09-10 03:04:01,984 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:04:02,161 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 125 [2019-09-10 03:04:02,351 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-09-10 03:04:02,529 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-09-10 03:04:02,700 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 162 [2019-09-10 03:04:02,861 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-09-10 03:04:03,020 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2019-09-10 03:04:03,172 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-09-10 03:04:03,329 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 146 [2019-09-10 03:04:03,477 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2019-09-10 03:04:03,610 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2019-09-10 03:04:03,741 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-10 03:04:03,870 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2019-09-10 03:04:03,997 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2019-09-10 03:04:04,114 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 124 [2019-09-10 03:04:04,229 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2019-09-10 03:04:04,335 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2019-09-10 03:04:04,440 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2019-09-10 03:04:04,542 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:04:05,755 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:04:08,082 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-09-10 03:04:08,565 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:04:08,667 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:04:08,776 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:04:08,881 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:04:08,991 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:04:09,099 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:04:09,214 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:04:09,326 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:04:09,444 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:04:09,567 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:04:09,691 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:04:09,815 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:04:09,946 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:04:10,070 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:04:10,203 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:04:10,337 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2019-09-10 03:04:10,477 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:04:10,613 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2019-09-10 03:04:10,760 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:04:10,897 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2019-09-10 03:04:11,047 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:04:11,201 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2019-09-10 03:04:11,358 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:04:11,507 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:04:11,674 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:04:11,828 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:04:12,002 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:04:12,174 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2019-09-10 03:04:12,343 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:04:12,513 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 120 [2019-09-10 03:04:12,688 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-09-10 03:04:12,848 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2019-09-10 03:04:13,005 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-09-10 03:04:13,160 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-09-10 03:04:13,305 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2019-09-10 03:04:13,439 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 143 [2019-09-10 03:04:13,573 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2019-09-10 03:04:13,709 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2019-09-10 03:04:13,860 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2019-09-10 03:04:13,978 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2019-09-10 03:04:14,093 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 123 [2019-09-10 03:04:14,207 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2019-09-10 03:04:14,312 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2019-09-10 03:04:14,416 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-09-10 03:04:15,724 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 03:04:18,478 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:04:18,580 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2019-09-10 03:04:18,689 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:04:18,794 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2019-09-10 03:04:18,909 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:04:19,016 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2019-09-10 03:04:19,135 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:04:19,248 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2019-09-10 03:04:19,365 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:04:19,477 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2019-09-10 03:04:19,607 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:04:19,727 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2019-09-10 03:04:19,860 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:04:19,993 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2019-09-10 03:04:20,156 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 102