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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 11:35:02,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 11:35:02,143 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 11:35:02,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 11:35:02,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 11:35:02,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 11:35:02,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 11:35:02,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 11:35:02,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 11:35:02,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 11:35:02,165 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 11:35:02,166 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 11:35:02,166 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 11:35:02,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 11:35:02,168 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 11:35:02,170 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 11:35:02,171 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 11:35:02,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 11:35:02,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 11:35:02,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 11:35:02,177 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 11:35:02,178 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 11:35:02,179 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 11:35:02,180 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 11:35:02,182 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 11:35:02,182 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 11:35:02,182 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 11:35:02,183 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 11:35:02,183 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 11:35:02,184 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 11:35:02,185 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 11:35:02,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 11:35:02,186 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 11:35:02,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 11:35:02,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 11:35:02,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 11:35:02,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 11:35:02,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 11:35:02,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 11:35:02,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 11:35:02,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 11:35:02,192 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-08 11:35:02,207 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 11:35:02,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 11:35:02,209 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 11:35:02,209 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 11:35:02,209 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 11:35:02,209 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 11:35:02,210 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 11:35:02,210 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 11:35:02,210 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 11:35:02,210 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 11:35:02,210 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 11:35:02,211 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 11:35:02,211 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 11:35:02,211 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 11:35:02,211 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 11:35:02,211 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 11:35:02,212 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 11:35:02,212 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 11:35:02,212 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 11:35:02,212 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 11:35:02,212 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 11:35:02,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 11:35:02,213 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 11:35:02,213 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 11:35:02,213 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 11:35:02,214 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 11:35:02,214 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 11:35:02,214 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 11:35:02,214 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 11:35:02,244 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 11:35:02,258 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 11:35:02,261 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 11:35:02,263 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 11:35:02,263 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 11:35:02,264 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2019-09-08 11:35:02,330 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7773092a1/425b8c4a99db402ba064ff40b127ee6d/FLAGa7446b8d5 [2019-09-08 11:35:02,810 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 11:35:02,811 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2019-09-08 11:35:02,832 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7773092a1/425b8c4a99db402ba064ff40b127ee6d/FLAGa7446b8d5 [2019-09-08 11:35:03,198 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7773092a1/425b8c4a99db402ba064ff40b127ee6d [2019-09-08 11:35:03,209 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 11:35:03,210 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 11:35:03,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 11:35:03,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 11:35:03,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 11:35:03,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 11:35:03" (1/1) ... [2019-09-08 11:35:03,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7afb7844 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:35:03, skipping insertion in model container [2019-09-08 11:35:03,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 11:35:03" (1/1) ... [2019-09-08 11:35:03,227 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 11:35:03,269 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 11:35:03,553 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 11:35:03,565 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 11:35:03,723 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 11:35:03,746 INFO L192 MainTranslator]: Completed translation [2019-09-08 11:35:03,747 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:35:03 WrapperNode [2019-09-08 11:35:03,747 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 11:35:03,748 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 11:35:03,748 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 11:35:03,748 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 11:35:03,762 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:35:03" (1/1) ... [2019-09-08 11:35:03,762 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:35:03" (1/1) ... [2019-09-08 11:35:03,770 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:35:03" (1/1) ... [2019-09-08 11:35:03,770 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:35:03" (1/1) ... [2019-09-08 11:35:03,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:35:03" (1/1) ... [2019-09-08 11:35:03,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:35:03" (1/1) ... [2019-09-08 11:35:03,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:35:03" (1/1) ... [2019-09-08 11:35:03,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 11:35:03,793 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 11:35:03,793 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 11:35:03,793 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 11:35:03,794 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:35:03" (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 [2019-09-08 11:35:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 11:35:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 11:35:03,872 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 11:35:03,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 11:35:03,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-08 11:35:03,872 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-08 11:35:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-08 11:35:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 11:35:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-08 11:35:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-08 11:35:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-08 11:35:03,873 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-08 11:35:03,874 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-08 11:35:03,874 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-08 11:35:03,874 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-08 11:35:03,874 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 11:35:03,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 11:35:03,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 11:35:04,449 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 11:35:04,450 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 11:35:04,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 11:35:04 BoogieIcfgContainer [2019-09-08 11:35:04,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 11:35:04,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 11:35:04,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 11:35:04,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 11:35:04,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 11:35:03" (1/3) ... [2019-09-08 11:35:04,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c5d263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 11:35:04, skipping insertion in model container [2019-09-08 11:35:04,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:35:03" (2/3) ... [2019-09-08 11:35:04,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29c5d263 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 11:35:04, skipping insertion in model container [2019-09-08 11:35:04,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 11:35:04" (3/3) ... [2019-09-08 11:35:04,466 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2019-09-08 11:35:04,479 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 11:35:04,499 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 11:35:04,516 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 11:35:04,549 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 11:35:04,549 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 11:35:04,550 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 11:35:04,550 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 11:35:04,551 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 11:35:04,551 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 11:35:04,551 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 11:35:04,551 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 11:35:04,551 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 11:35:04,572 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states. [2019-09-08 11:35:04,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-09-08 11:35:04,580 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:35:04,581 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:35:04,583 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:35:04,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:35:04,589 INFO L82 PathProgramCache]: Analyzing trace with hash -427904680, now seen corresponding path program 1 times [2019-09-08 11:35:04,591 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:35:04,591 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:35:04,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:04,643 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:35:04,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:04,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:04,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:35:04,926 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:35:04,927 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:35:04,932 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:35:04,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:35:04,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:35:04,950 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 3 states. [2019-09-08 11:35:05,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:35:05,045 INFO L93 Difference]: Finished difference Result 147 states and 231 transitions. [2019-09-08 11:35:05,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:35:05,048 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2019-09-08 11:35:05,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:35:05,065 INFO L225 Difference]: With dead ends: 147 [2019-09-08 11:35:05,066 INFO L226 Difference]: Without dead ends: 95 [2019-09-08 11:35:05,072 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:35:05,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-09-08 11:35:05,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2019-09-08 11:35:05,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-09-08 11:35:05,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 134 transitions. [2019-09-08 11:35:05,120 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 134 transitions. Word has length 40 [2019-09-08 11:35:05,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:35:05,121 INFO L475 AbstractCegarLoop]: Abstraction has 93 states and 134 transitions. [2019-09-08 11:35:05,121 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:35:05,121 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 134 transitions. [2019-09-08 11:35:05,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-09-08 11:35:05,123 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:35:05,123 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:35:05,124 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:35:05,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:35:05,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1893549176, now seen corresponding path program 1 times [2019-09-08 11:35:05,124 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:35:05,125 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:35:05,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:05,127 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:35:05,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:05,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:05,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:35:05,232 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:35:05,232 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:35:05,234 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:35:05,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:35:05,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:35:05,235 INFO L87 Difference]: Start difference. First operand 93 states and 134 transitions. Second operand 3 states. [2019-09-08 11:35:05,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:35:05,296 INFO L93 Difference]: Finished difference Result 217 states and 330 transitions. [2019-09-08 11:35:05,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:35:05,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2019-09-08 11:35:05,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:35:05,299 INFO L225 Difference]: With dead ends: 217 [2019-09-08 11:35:05,300 INFO L226 Difference]: Without dead ends: 147 [2019-09-08 11:35:05,301 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:35:05,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-09-08 11:35:05,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2019-09-08 11:35:05,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-09-08 11:35:05,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 216 transitions. [2019-09-08 11:35:05,331 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 216 transitions. Word has length 41 [2019-09-08 11:35:05,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:35:05,332 INFO L475 AbstractCegarLoop]: Abstraction has 145 states and 216 transitions. [2019-09-08 11:35:05,332 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:35:05,332 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 216 transitions. [2019-09-08 11:35:05,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-09-08 11:35:05,333 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:35:05,334 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:35:05,334 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:35:05,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:35:05,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1082568320, now seen corresponding path program 1 times [2019-09-08 11:35:05,335 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:35:05,335 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:35:05,338 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:05,338 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:35:05,339 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:05,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:35:05,443 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:35:05,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:35:05,445 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:35:05,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:35:05,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:35:05,446 INFO L87 Difference]: Start difference. First operand 145 states and 216 transitions. Second operand 3 states. [2019-09-08 11:35:05,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:35:05,525 INFO L93 Difference]: Finished difference Result 357 states and 550 transitions. [2019-09-08 11:35:05,526 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:35:05,527 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2019-09-08 11:35:05,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:35:05,530 INFO L225 Difference]: With dead ends: 357 [2019-09-08 11:35:05,530 INFO L226 Difference]: Without dead ends: 235 [2019-09-08 11:35:05,532 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:35:05,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2019-09-08 11:35:05,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 233. [2019-09-08 11:35:05,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2019-09-08 11:35:05,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 352 transitions. [2019-09-08 11:35:05,585 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 352 transitions. Word has length 42 [2019-09-08 11:35:05,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:35:05,586 INFO L475 AbstractCegarLoop]: Abstraction has 233 states and 352 transitions. [2019-09-08 11:35:05,586 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:35:05,586 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 352 transitions. [2019-09-08 11:35:05,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-09-08 11:35:05,590 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:35:05,590 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:35:05,591 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:35:05,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:35:05,594 INFO L82 PathProgramCache]: Analyzing trace with hash 304274593, now seen corresponding path program 1 times [2019-09-08 11:35:05,594 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:35:05,594 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:35:05,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:05,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:35:05,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:05,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:05,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:35:05,743 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:35:05,743 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:35:05,744 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:35:05,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:35:05,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:35:05,746 INFO L87 Difference]: Start difference. First operand 233 states and 352 transitions. Second operand 5 states. [2019-09-08 11:35:05,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:35:05,900 INFO L93 Difference]: Finished difference Result 443 states and 681 transitions. [2019-09-08 11:35:05,901 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:35:05,901 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2019-09-08 11:35:05,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:35:05,904 INFO L225 Difference]: With dead ends: 443 [2019-09-08 11:35:05,904 INFO L226 Difference]: Without dead ends: 233 [2019-09-08 11:35:05,906 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-08 11:35:05,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2019-09-08 11:35:05,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2019-09-08 11:35:05,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2019-09-08 11:35:05,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 348 transitions. [2019-09-08 11:35:05,939 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 348 transitions. Word has length 43 [2019-09-08 11:35:05,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:35:05,939 INFO L475 AbstractCegarLoop]: Abstraction has 233 states and 348 transitions. [2019-09-08 11:35:05,939 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:35:05,939 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 348 transitions. [2019-09-08 11:35:05,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-09-08 11:35:05,940 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:35:05,941 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:35:05,941 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:35:05,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:35:05,942 INFO L82 PathProgramCache]: Analyzing trace with hash 1578142598, now seen corresponding path program 1 times [2019-09-08 11:35:05,942 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:35:05,942 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:35:05,944 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:05,944 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:35:05,945 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:05,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:06,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:35:06,046 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:35:06,047 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:35:06,047 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:35:06,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:35:06,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:35:06,048 INFO L87 Difference]: Start difference. First operand 233 states and 348 transitions. Second operand 5 states. [2019-09-08 11:35:06,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:35:06,163 INFO L93 Difference]: Finished difference Result 443 states and 673 transitions. [2019-09-08 11:35:06,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:35:06,166 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2019-09-08 11:35:06,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:35:06,171 INFO L225 Difference]: With dead ends: 443 [2019-09-08 11:35:06,172 INFO L226 Difference]: Without dead ends: 233 [2019-09-08 11:35:06,174 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-08 11:35:06,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2019-09-08 11:35:06,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2019-09-08 11:35:06,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2019-09-08 11:35:06,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 344 transitions. [2019-09-08 11:35:06,225 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 344 transitions. Word has length 43 [2019-09-08 11:35:06,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:35:06,226 INFO L475 AbstractCegarLoop]: Abstraction has 233 states and 344 transitions. [2019-09-08 11:35:06,226 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:35:06,226 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 344 transitions. [2019-09-08 11:35:06,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-09-08 11:35:06,228 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:35:06,228 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:35:06,229 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:35:06,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:35:06,229 INFO L82 PathProgramCache]: Analyzing trace with hash -263887935, now seen corresponding path program 1 times [2019-09-08 11:35:06,229 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:35:06,230 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:35:06,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:06,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:35:06,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:06,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:06,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:35:06,335 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:35:06,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:35:06,336 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:35:06,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:35:06,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:35:06,336 INFO L87 Difference]: Start difference. First operand 233 states and 344 transitions. Second operand 5 states. [2019-09-08 11:35:06,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:35:06,493 INFO L93 Difference]: Finished difference Result 1073 states and 1628 transitions. [2019-09-08 11:35:06,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:35:06,494 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2019-09-08 11:35:06,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:35:06,501 INFO L225 Difference]: With dead ends: 1073 [2019-09-08 11:35:06,501 INFO L226 Difference]: Without dead ends: 863 [2019-09-08 11:35:06,502 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-09-08 11:35:06,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2019-09-08 11:35:06,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 649. [2019-09-08 11:35:06,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2019-09-08 11:35:06,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 968 transitions. [2019-09-08 11:35:06,595 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 968 transitions. Word has length 43 [2019-09-08 11:35:06,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:35:06,596 INFO L475 AbstractCegarLoop]: Abstraction has 649 states and 968 transitions. [2019-09-08 11:35:06,596 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:35:06,596 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 968 transitions. [2019-09-08 11:35:06,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-09-08 11:35:06,597 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:35:06,597 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:35:06,598 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:35:06,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:35:06,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1086429188, now seen corresponding path program 1 times [2019-09-08 11:35:06,598 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:35:06,598 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:35:06,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:06,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:35:06,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:06,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:35:06,660 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:35:06,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:35:06,661 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:35:06,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:35:06,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:35:06,662 INFO L87 Difference]: Start difference. First operand 649 states and 968 transitions. Second operand 3 states. [2019-09-08 11:35:06,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:35:06,751 INFO L93 Difference]: Finished difference Result 1575 states and 2360 transitions. [2019-09-08 11:35:06,751 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:35:06,751 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2019-09-08 11:35:06,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:35:06,760 INFO L225 Difference]: With dead ends: 1575 [2019-09-08 11:35:06,760 INFO L226 Difference]: Without dead ends: 949 [2019-09-08 11:35:06,762 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:35:06,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2019-09-08 11:35:06,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 947. [2019-09-08 11:35:06,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 947 states. [2019-09-08 11:35:06,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1394 transitions. [2019-09-08 11:35:06,835 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1394 transitions. Word has length 45 [2019-09-08 11:35:06,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:35:06,836 INFO L475 AbstractCegarLoop]: Abstraction has 947 states and 1394 transitions. [2019-09-08 11:35:06,836 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:35:06,836 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1394 transitions. [2019-09-08 11:35:06,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-09-08 11:35:06,839 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:35:06,839 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:35:06,840 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:35:06,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:35:06,840 INFO L82 PathProgramCache]: Analyzing trace with hash -1066379845, now seen corresponding path program 1 times [2019-09-08 11:35:06,840 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:35:06,840 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:35:06,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:06,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:35:06,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:07,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:35:07,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:35:07,064 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:35:07,064 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:35:07,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:35:07,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:35:07,065 INFO L87 Difference]: Start difference. First operand 947 states and 1394 transitions. Second operand 5 states. [2019-09-08 11:35:07,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:35:07,253 INFO L93 Difference]: Finished difference Result 2485 states and 3669 transitions. [2019-09-08 11:35:07,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:35:07,254 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2019-09-08 11:35:07,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:35:07,266 INFO L225 Difference]: With dead ends: 2485 [2019-09-08 11:35:07,266 INFO L226 Difference]: Without dead ends: 1563 [2019-09-08 11:35:07,270 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:35:07,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2019-09-08 11:35:07,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1255. [2019-09-08 11:35:07,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2019-09-08 11:35:07,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1826 transitions. [2019-09-08 11:35:07,445 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1826 transitions. Word has length 45 [2019-09-08 11:35:07,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:35:07,445 INFO L475 AbstractCegarLoop]: Abstraction has 1255 states and 1826 transitions. [2019-09-08 11:35:07,445 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:35:07,445 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1826 transitions. [2019-09-08 11:35:07,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-08 11:35:07,446 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:35:07,447 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:35:07,447 INFO L418 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:35:07,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:35:07,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1300053745, now seen corresponding path program 1 times [2019-09-08 11:35:07,447 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:35:07,448 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:35:07,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:07,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:35:07,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:07,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:07,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:35:07,539 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:35:07,539 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:35:07,539 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:35:07,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:35:07,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:35:07,540 INFO L87 Difference]: Start difference. First operand 1255 states and 1826 transitions. Second operand 5 states. [2019-09-08 11:35:07,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:35:07,786 INFO L93 Difference]: Finished difference Result 2403 states and 3473 transitions. [2019-09-08 11:35:07,786 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 11:35:07,787 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2019-09-08 11:35:07,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:35:07,800 INFO L225 Difference]: With dead ends: 2403 [2019-09-08 11:35:07,800 INFO L226 Difference]: Without dead ends: 2401 [2019-09-08 11:35:07,802 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-08 11:35:07,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2401 states. [2019-09-08 11:35:07,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2401 to 1335. [2019-09-08 11:35:07,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1335 states. [2019-09-08 11:35:07,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1902 transitions. [2019-09-08 11:35:07,994 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1902 transitions. Word has length 46 [2019-09-08 11:35:07,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:35:07,995 INFO L475 AbstractCegarLoop]: Abstraction has 1335 states and 1902 transitions. [2019-09-08 11:35:07,995 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:35:07,995 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1902 transitions. [2019-09-08 11:35:08,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-08 11:35:08,000 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:35:08,000 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:35:08,001 INFO L418 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:35:08,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:35:08,001 INFO L82 PathProgramCache]: Analyzing trace with hash 619866378, now seen corresponding path program 1 times [2019-09-08 11:35:08,001 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:35:08,001 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:35:08,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:08,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:35:08,004 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:08,115 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:35:08,115 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:35:08,115 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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 [2019-09-08 11:35:08,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:35:08,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:08,232 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-08 11:35:08,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:35:08,334 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-08 11:35:08,342 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 11:35:08,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2019-09-08 11:35:08,343 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 11:35:08,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 11:35:08,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-09-08 11:35:08,350 INFO L87 Difference]: Start difference. First operand 1335 states and 1902 transitions. Second operand 8 states. [2019-09-08 11:35:08,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:35:08,881 INFO L93 Difference]: Finished difference Result 3659 states and 5314 transitions. [2019-09-08 11:35:08,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-08 11:35:08,882 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2019-09-08 11:35:08,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:35:08,897 INFO L225 Difference]: With dead ends: 3659 [2019-09-08 11:35:08,897 INFO L226 Difference]: Without dead ends: 2673 [2019-09-08 11:35:08,901 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2019-09-08 11:35:08,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2673 states. [2019-09-08 11:35:09,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2673 to 1987. [2019-09-08 11:35:09,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1987 states. [2019-09-08 11:35:09,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1987 states to 1987 states and 2842 transitions. [2019-09-08 11:35:09,155 INFO L78 Accepts]: Start accepts. Automaton has 1987 states and 2842 transitions. Word has length 64 [2019-09-08 11:35:09,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:35:09,156 INFO L475 AbstractCegarLoop]: Abstraction has 1987 states and 2842 transitions. [2019-09-08 11:35:09,156 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 11:35:09,156 INFO L276 IsEmpty]: Start isEmpty. Operand 1987 states and 2842 transitions. [2019-09-08 11:35:09,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-08 11:35:09,158 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:35:09,158 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:35:09,158 INFO L418 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:35:09,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:35:09,159 INFO L82 PathProgramCache]: Analyzing trace with hash 596121156, now seen corresponding path program 1 times [2019-09-08 11:35:09,159 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:35:09,159 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:35:09,160 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:09,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:35:09,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:09,254 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-08 11:35:09,254 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:35:09,255 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:35:09,256 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:35:09,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:35:09,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:35:09,257 INFO L87 Difference]: Start difference. First operand 1987 states and 2842 transitions. Second operand 5 states. [2019-09-08 11:35:09,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:35:09,678 INFO L93 Difference]: Finished difference Result 4303 states and 6250 transitions. [2019-09-08 11:35:09,678 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:35:09,678 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2019-09-08 11:35:09,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:35:09,696 INFO L225 Difference]: With dead ends: 4303 [2019-09-08 11:35:09,696 INFO L226 Difference]: Without dead ends: 3317 [2019-09-08 11:35:09,700 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-09-08 11:35:09,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3317 states. [2019-09-08 11:35:09,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3317 to 2639. [2019-09-08 11:35:09,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2639 states. [2019-09-08 11:35:09,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 3782 transitions. [2019-09-08 11:35:09,993 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 3782 transitions. Word has length 64 [2019-09-08 11:35:09,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:35:09,994 INFO L475 AbstractCegarLoop]: Abstraction has 2639 states and 3782 transitions. [2019-09-08 11:35:09,994 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:35:09,994 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 3782 transitions. [2019-09-08 11:35:09,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-08 11:35:09,995 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:35:09,995 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:35:09,996 INFO L418 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:35:09,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:35:09,996 INFO L82 PathProgramCache]: Analyzing trace with hash 223595262, now seen corresponding path program 1 times [2019-09-08 11:35:09,996 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:35:09,996 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:35:09,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:09,998 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:35:09,998 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:10,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:10,084 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:35:10,085 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:35:10,085 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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) [2019-09-08 11:35:10,105 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:35:10,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:10,185 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-08 11:35:10,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:35:10,236 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 11:35:10,240 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 11:35:10,241 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2019-09-08 11:35:10,241 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 11:35:10,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 11:35:10,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-09-08 11:35:10,242 INFO L87 Difference]: Start difference. First operand 2639 states and 3782 transitions. Second operand 8 states. [2019-09-08 11:35:11,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:35:11,051 INFO L93 Difference]: Finished difference Result 5887 states and 8598 transitions. [2019-09-08 11:35:11,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 11:35:11,052 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2019-09-08 11:35:11,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:35:11,086 INFO L225 Difference]: With dead ends: 5887 [2019-09-08 11:35:11,086 INFO L226 Difference]: Without dead ends: 5213 [2019-09-08 11:35:11,091 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2019-09-08 11:35:11,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5213 states. [2019-09-08 11:35:11,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5213 to 3183. [2019-09-08 11:35:11,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3183 states. [2019-09-08 11:35:11,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3183 states to 3183 states and 4574 transitions. [2019-09-08 11:35:11,453 INFO L78 Accepts]: Start accepts. Automaton has 3183 states and 4574 transitions. Word has length 64 [2019-09-08 11:35:11,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:35:11,454 INFO L475 AbstractCegarLoop]: Abstraction has 3183 states and 4574 transitions. [2019-09-08 11:35:11,454 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 11:35:11,454 INFO L276 IsEmpty]: Start isEmpty. Operand 3183 states and 4574 transitions. [2019-09-08 11:35:11,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-08 11:35:11,455 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:35:11,456 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:35:11,456 INFO L418 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:35:11,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:35:11,456 INFO L82 PathProgramCache]: Analyzing trace with hash 1815695605, now seen corresponding path program 1 times [2019-09-08 11:35:11,457 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:35:11,457 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:35:11,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:11,461 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:35:11,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:11,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:11,536 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 11:35:11,536 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:35:11,536 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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) [2019-09-08 11:35:11,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:35:11,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:11,645 INFO L256 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 21 conjunts are in the unsatisfiable core [2019-09-08 11:35:11,690 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:35:11,744 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:35:11,758 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:35:11,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6] total 7 [2019-09-08 11:35:11,760 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 11:35:11,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 11:35:11,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2019-09-08 11:35:11,760 INFO L87 Difference]: Start difference. First operand 3183 states and 4574 transitions. Second operand 7 states. [2019-09-08 11:35:12,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:35:12,753 INFO L93 Difference]: Finished difference Result 8181 states and 11793 transitions. [2019-09-08 11:35:12,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 11:35:12,754 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-09-08 11:35:12,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:35:12,785 INFO L225 Difference]: With dead ends: 8181 [2019-09-08 11:35:12,786 INFO L226 Difference]: Without dead ends: 5123 [2019-09-08 11:35:12,794 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2019-09-08 11:35:12,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5123 states. [2019-09-08 11:35:13,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5123 to 5099. [2019-09-08 11:35:13,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5099 states. [2019-09-08 11:35:13,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5099 states to 5099 states and 7170 transitions. [2019-09-08 11:35:13,583 INFO L78 Accepts]: Start accepts. Automaton has 5099 states and 7170 transitions. Word has length 65 [2019-09-08 11:35:13,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:35:13,583 INFO L475 AbstractCegarLoop]: Abstraction has 5099 states and 7170 transitions. [2019-09-08 11:35:13,583 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 11:35:13,584 INFO L276 IsEmpty]: Start isEmpty. Operand 5099 states and 7170 transitions. [2019-09-08 11:35:13,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-08 11:35:13,585 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:35:13,585 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:35:13,586 INFO L418 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:35:13,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:35:13,586 INFO L82 PathProgramCache]: Analyzing trace with hash 2112957636, now seen corresponding path program 1 times [2019-09-08 11:35:13,586 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:35:13,586 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:35:13,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:13,588 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:35:13,588 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:13,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:13,787 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:35:13,790 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:35:13,790 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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 [2019-09-08 11:35:13,805 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:35:13,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:13,884 INFO L256 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-08 11:35:13,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:35:14,000 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:35:14,274 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:35:14,287 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:35:14,288 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2019-09-08 11:35:14,288 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-08 11:35:14,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-08 11:35:14,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2019-09-08 11:35:14,289 INFO L87 Difference]: Start difference. First operand 5099 states and 7170 transitions. Second operand 17 states. [2019-09-08 11:35:15,470 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 40 [2019-09-08 11:35:20,337 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 37 [2019-09-08 11:35:25,583 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-09-08 11:35:30,899 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2019-09-08 11:35:31,522 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 30 [2019-09-08 11:35:31,950 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2019-09-08 11:35:40,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:35:40,702 INFO L93 Difference]: Finished difference Result 92686 states and 126981 transitions. [2019-09-08 11:35:40,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2019-09-08 11:35:40,703 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 66 [2019-09-08 11:35:40,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:35:40,959 INFO L225 Difference]: With dead ends: 92686 [2019-09-08 11:35:40,959 INFO L226 Difference]: Without dead ends: 87612 [2019-09-08 11:35:41,019 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 226 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22890 ImplicationChecksByTransitivity, 14.7s TimeCoverageRelationStatistics Valid=6149, Invalid=45607, Unknown=0, NotChecked=0, Total=51756 [2019-09-08 11:35:41,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87612 states. [2019-09-08 11:35:45,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87612 to 24409. [2019-09-08 11:35:45,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24409 states. [2019-09-08 11:35:45,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24409 states to 24409 states and 33558 transitions. [2019-09-08 11:35:45,724 INFO L78 Accepts]: Start accepts. Automaton has 24409 states and 33558 transitions. Word has length 66 [2019-09-08 11:35:45,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:35:45,724 INFO L475 AbstractCegarLoop]: Abstraction has 24409 states and 33558 transitions. [2019-09-08 11:35:45,724 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-08 11:35:45,725 INFO L276 IsEmpty]: Start isEmpty. Operand 24409 states and 33558 transitions. [2019-09-08 11:35:45,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-08 11:35:45,727 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:35:45,727 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:35:45,728 INFO L418 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:35:45,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:35:45,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1295369161, now seen corresponding path program 1 times [2019-09-08 11:35:45,728 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:35:45,728 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:35:45,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:45,730 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:35:45,730 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:45,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:45,941 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:35:45,941 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:35:45,941 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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) [2019-09-08 11:35:45,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:35:46,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:46,044 INFO L256 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-08 11:35:46,048 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:35:46,170 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:35:46,430 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:35:46,447 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:35:46,447 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2019-09-08 11:35:46,448 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-08 11:35:46,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-08 11:35:46,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2019-09-08 11:35:46,449 INFO L87 Difference]: Start difference. First operand 24409 states and 33558 transitions. Second operand 17 states. [2019-09-08 11:36:03,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:36:03,580 INFO L93 Difference]: Finished difference Result 158151 states and 214121 transitions. [2019-09-08 11:36:03,580 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-09-08 11:36:03,580 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 66 [2019-09-08 11:36:03,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:36:03,859 INFO L225 Difference]: With dead ends: 158151 [2019-09-08 11:36:03,859 INFO L226 Difference]: Without dead ends: 133767 [2019-09-08 11:36:03,942 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 694 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=716, Invalid=2146, Unknown=0, NotChecked=0, Total=2862 [2019-09-08 11:36:04,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133767 states. [2019-09-08 11:36:12,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133767 to 60721. [2019-09-08 11:36:12,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60721 states. [2019-09-08 11:36:12,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60721 states to 60721 states and 83011 transitions. [2019-09-08 11:36:12,603 INFO L78 Accepts]: Start accepts. Automaton has 60721 states and 83011 transitions. Word has length 66 [2019-09-08 11:36:12,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:36:12,603 INFO L475 AbstractCegarLoop]: Abstraction has 60721 states and 83011 transitions. [2019-09-08 11:36:12,603 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-08 11:36:12,603 INFO L276 IsEmpty]: Start isEmpty. Operand 60721 states and 83011 transitions. [2019-09-08 11:36:12,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-08 11:36:12,606 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:36:12,607 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:36:12,607 INFO L418 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:36:12,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:36:12,608 INFO L82 PathProgramCache]: Analyzing trace with hash -401806685, now seen corresponding path program 1 times [2019-09-08 11:36:12,608 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:36:12,608 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:36:12,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:36:12,610 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:36:12,610 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:36:12,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:36:13,546 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:36:13,546 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:36:13,546 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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 [2019-09-08 11:36:13,562 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:36:13,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:36:13,640 INFO L256 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 38 conjunts are in the unsatisfiable core [2019-09-08 11:36:13,643 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:36:14,139 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:36:14,514 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:36:14,766 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 38 [2019-09-08 11:36:15,218 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:36:15,568 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:36:15,573 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:36:15,573 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2019-09-08 11:36:15,574 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-09-08 11:36:15,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-09-08 11:36:15,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1154, Unknown=0, NotChecked=0, Total=1260 [2019-09-08 11:36:15,575 INFO L87 Difference]: Start difference. First operand 60721 states and 83011 transitions. Second operand 36 states. [2019-09-08 11:36:16,955 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 46 [2019-09-08 11:36:17,208 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 46 [2019-09-08 11:36:17,560 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 53 [2019-09-08 11:36:17,892 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 56 [2019-09-08 11:36:18,159 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 53 [2019-09-08 11:36:18,488 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 56 [2019-09-08 11:36:18,935 WARN L188 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 67 [2019-09-08 11:36:19,375 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 67 [2019-09-08 11:36:19,702 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2019-09-08 11:36:20,052 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2019-09-08 11:36:20,463 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 60 [2019-09-08 11:36:20,945 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2019-09-08 11:36:21,540 WARN L188 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2019-09-08 11:36:21,905 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2019-09-08 11:36:22,114 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 28 [2019-09-08 11:36:22,341 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 50 [2019-09-08 11:36:22,665 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 60 [2019-09-08 11:36:22,994 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2019-09-08 11:36:23,398 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2019-09-08 11:36:25,433 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 54 [2019-09-08 11:36:25,753 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2019-09-08 11:36:26,168 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2019-09-08 11:36:26,601 WARN L188 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2019-09-08 11:36:26,944 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 57 [2019-09-08 11:36:27,383 WARN L188 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2019-09-08 11:36:27,616 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 54 [2019-09-08 11:36:27,897 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2019-09-08 11:36:28,233 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2019-09-08 11:36:28,529 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2019-09-08 11:36:28,956 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 67 [2019-09-08 11:36:29,394 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 77 [2019-09-08 11:36:29,717 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2019-09-08 11:36:30,038 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2019-09-08 11:36:30,509 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 81 [2019-09-08 11:36:31,055 WARN L188 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 69 [2019-09-08 11:36:31,504 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 67 [2019-09-08 11:36:31,890 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 77 [2019-09-08 11:36:32,318 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 85 [2019-09-08 11:36:32,512 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 37 [2019-09-08 11:36:32,824 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 41 [2019-09-08 11:36:33,274 WARN L188 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2019-09-08 11:36:34,589 WARN L188 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2019-09-08 11:36:35,090 WARN L188 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 69 [2019-09-08 11:36:35,351 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 59 [2019-09-08 11:36:35,663 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 63 [2019-09-08 11:36:36,199 WARN L188 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 89 [2019-09-08 11:36:36,637 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 85 [2019-09-08 11:36:36,922 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 39 [2019-09-08 11:36:37,127 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 37 [2019-09-08 11:36:37,449 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 68 [2019-09-08 11:36:37,648 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2019-09-08 11:36:38,063 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 62 [2019-09-08 11:36:38,300 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2019-09-08 11:36:38,653 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2019-09-08 11:36:38,975 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 55 [2019-09-08 11:36:39,323 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2019-09-08 11:36:39,539 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 51 [2019-09-08 11:36:39,915 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 62 [2019-09-08 11:36:40,177 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 59 [2019-09-08 11:36:40,396 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 38 [2019-09-08 11:36:40,621 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 47 [2019-09-08 11:36:40,980 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2019-09-08 11:36:41,437 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 62 [2019-09-08 11:36:41,629 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 41 [2019-09-08 11:36:41,866 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 51 [2019-09-08 11:36:42,303 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 76 [2019-09-08 11:36:44,683 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2019-09-08 11:36:44,994 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2019-09-08 11:36:45,352 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 68 [2019-09-08 11:36:45,600 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 48 [2019-09-08 11:36:46,079 WARN L188 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 93 [2019-09-08 11:36:46,285 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2019-09-08 11:36:46,891 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 62 [2019-09-08 11:36:47,225 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 58 [2019-09-08 11:36:47,774 WARN L188 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 80 [2019-09-08 11:36:48,010 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2019-09-08 11:36:48,460 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2019-09-08 11:36:48,809 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 72 [2019-09-08 11:36:49,013 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2019-09-08 11:36:49,504 WARN L188 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 97 [2019-09-08 11:36:49,774 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2019-09-08 11:36:50,083 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 55 [2019-09-08 11:36:50,614 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 63 [2019-09-08 11:36:50,886 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 50 [2019-09-08 11:36:51,101 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 42 [2019-09-08 11:36:51,375 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 51 [2019-09-08 11:36:51,779 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 37 [2019-09-08 11:36:52,160 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 47 [2019-09-08 11:36:52,552 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 53 [2019-09-08 11:36:53,052 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 62 [2019-09-08 11:36:53,402 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 54 [2019-09-08 11:36:53,938 WARN L188 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 80 [2019-09-08 11:36:54,159 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 41 [2019-09-08 11:36:54,339 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2019-09-08 11:36:54,605 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 51 [2019-09-08 11:36:55,019 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 71 [2019-09-08 11:36:55,302 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2019-09-08 11:36:55,720 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 75 [2019-09-08 11:36:56,160 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2019-09-08 11:36:56,344 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2019-09-08 11:36:56,992 WARN L188 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 101 [2019-09-08 11:36:57,374 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 63 [2019-09-08 11:36:57,640 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 50 [2019-09-08 11:36:58,020 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 72 [2019-09-08 11:36:58,221 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2019-09-08 11:36:58,685 WARN L188 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 97 [2019-09-08 11:36:58,864 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-08 11:36:59,134 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 48 [2019-09-08 11:36:59,373 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 47 [2019-09-08 11:36:59,590 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2019-09-08 11:36:59,935 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2019-09-08 11:37:00,190 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2019-09-08 11:37:00,482 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 53 [2019-09-08 11:37:00,717 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2019-09-08 11:37:00,937 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 51 [2019-09-08 11:37:01,248 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 65 [2019-09-08 11:37:01,794 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 63 [2019-09-08 11:37:02,116 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-09-08 11:37:02,450 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 69 [2019-09-08 11:37:02,754 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 44 [2019-09-08 11:37:03,027 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 41 [2019-09-08 11:37:03,642 WARN L188 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2019-09-08 11:37:03,847 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 35 [2019-09-08 11:37:04,126 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 53 [2019-09-08 11:37:04,304 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-08 11:37:04,704 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 71 [2019-09-08 11:37:04,876 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 34 [2019-09-08 11:37:05,172 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2019-09-08 11:37:05,656 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 70 [2019-09-08 11:37:05,990 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2019-09-08 11:37:06,329 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2019-09-08 11:37:06,553 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 34 [2019-09-08 11:37:06,763 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2019-09-08 11:37:07,142 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 63 [2019-09-08 11:37:07,403 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 38 [2019-09-08 11:37:07,579 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2019-09-08 11:37:07,895 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 49 [2019-09-08 11:37:08,114 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2019-09-08 11:37:08,331 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 47 [2019-09-08 11:37:08,750 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 68 [2019-09-08 11:37:09,044 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 53 [2019-09-08 11:37:09,360 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 65 [2019-09-08 11:37:09,751 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 70 [2019-09-08 11:37:10,011 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 53 [2019-09-08 11:37:10,392 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2019-09-08 11:37:10,573 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2019-09-08 11:37:10,839 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2019-09-08 11:37:11,220 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 65 [2019-09-08 11:37:11,503 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2019-09-08 11:37:11,968 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2019-09-08 11:37:12,337 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2019-09-08 11:37:12,596 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 53 [2019-09-08 11:37:13,759 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 56 [2019-09-08 11:37:14,103 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2019-09-08 11:37:14,699 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2019-09-08 11:37:15,043 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2019-09-08 11:37:15,398 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 56 [2019-09-08 11:37:15,820 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2019-09-08 11:37:16,342 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2019-09-08 11:37:16,747 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2019-09-08 11:37:17,029 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 11:37:17,579 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 73 [2019-09-08 11:37:17,878 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 64 [2019-09-08 11:37:18,184 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2019-09-08 11:37:18,807 WARN L188 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 82 [2019-09-08 11:37:19,210 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2019-09-08 11:37:19,598 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2019-09-08 11:37:20,207 WARN L188 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 75 [2019-09-08 11:37:20,463 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2019-09-08 11:37:20,832 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2019-09-08 11:37:21,138 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 64 [2019-09-08 11:37:21,567 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 38 [2019-09-08 11:37:22,069 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 73 [2019-09-08 11:37:22,363 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 57 [2019-09-08 11:37:22,723 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 60 [2019-09-08 11:37:23,167 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 70 [2019-09-08 11:37:23,717 WARN L188 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 82 [2019-09-08 11:37:24,080 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2019-09-08 11:37:24,658 WARN L188 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2019-09-08 11:37:25,129 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2019-09-08 11:37:25,538 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2019-09-08 11:37:25,734 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2019-09-08 11:37:26,239 WARN L188 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 83 [2019-09-08 11:37:26,445 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2019-09-08 11:37:26,702 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2019-09-08 11:37:27,236 WARN L188 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 74 [2019-09-08 11:37:27,610 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2019-09-08 11:37:28,079 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2019-09-08 11:37:28,388 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 57 [2019-09-08 11:37:28,703 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 56 [2019-09-08 11:37:29,074 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2019-09-08 11:37:29,458 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2019-09-08 11:37:29,931 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 72 [2019-09-08 11:37:30,465 WARN L188 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 82 [2019-09-08 11:37:30,936 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2019-09-08 11:37:31,237 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2019-09-08 11:37:31,693 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2019-09-08 11:37:32,025 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 60 [2019-09-08 11:37:32,423 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 70 [2019-09-08 11:37:32,748 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2019-09-08 11:37:33,126 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2019-09-08 11:37:33,445 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2019-09-08 11:37:33,806 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2019-09-08 11:37:34,262 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 83 [2019-09-08 11:37:34,467 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 11:37:34,759 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 64 [2019-09-08 11:37:34,968 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2019-09-08 11:37:35,283 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-08 11:37:35,661 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2019-09-08 11:37:35,986 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 70 [2019-09-08 11:37:36,527 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 64 [2019-09-08 11:37:36,710 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2019-09-08 11:37:37,081 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 60 [2019-09-08 11:37:37,424 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 52 [2019-09-08 11:37:37,923 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2019-09-08 11:37:38,314 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 71 [2019-09-08 11:37:38,814 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 72 [2019-09-08 11:37:39,357 WARN L188 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 82 [2019-09-08 11:37:39,695 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 54 [2019-09-08 11:37:39,948 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-09-08 11:37:40,421 WARN L188 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 69 [2019-09-08 11:37:40,873 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 69 [2019-09-08 11:37:41,551 WARN L188 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2019-09-08 11:37:42,108 WARN L188 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 75 [2019-09-08 11:37:42,388 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2019-09-08 11:37:42,699 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 44 [2019-09-08 11:37:43,013 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2019-09-08 11:37:43,269 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2019-09-08 11:37:43,586 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 57 [2019-09-08 11:37:43,890 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2019-09-08 11:37:44,297 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 73 [2019-09-08 11:37:44,772 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 83 [2019-09-08 11:37:45,020 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2019-09-08 11:37:45,491 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2019-09-08 11:37:45,788 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2019-09-08 11:37:46,139 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2019-09-08 11:37:46,412 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2019-09-08 11:37:46,582 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 38 [2019-09-08 11:37:47,058 WARN L188 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 71 [2019-09-08 11:37:47,596 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 71 [2019-09-08 11:37:47,867 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-09-08 11:37:48,243 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 72 [2019-09-08 11:37:48,523 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2019-09-08 11:37:48,905 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2019-09-08 11:37:49,303 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 67 [2019-09-08 11:37:49,638 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 64 [2019-09-08 11:37:50,036 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 60 [2019-09-08 11:37:50,327 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 52 [2019-09-08 11:37:50,912 WARN L188 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 91 [2019-09-08 11:37:51,387 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 67 [2019-09-08 11:37:51,737 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2019-09-08 11:37:52,338 WARN L188 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 73 [2019-09-08 11:37:52,961 WARN L188 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 83 [2019-09-08 11:37:53,258 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2019-09-08 11:37:53,491 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2019-09-08 11:37:53,987 WARN L188 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2019-09-08 11:37:54,508 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 71 [2019-09-08 11:37:54,921 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2019-09-08 11:37:55,656 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2019-09-08 11:37:55,938 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2019-09-08 11:37:56,218 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2019-09-08 11:37:56,622 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2019-09-08 11:37:56,886 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-09-08 11:37:57,264 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 60 [2019-09-08 11:37:57,487 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2019-09-08 11:37:57,888 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2019-09-08 11:37:58,249 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-08 11:37:58,680 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 73 [2019-09-08 11:37:59,172 WARN L188 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 83 [2019-09-08 11:37:59,380 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 11:37:59,736 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2019-09-08 11:38:00,046 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 65 [2019-09-08 11:38:00,321 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 48 [2019-09-08 11:38:00,778 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2019-09-08 11:38:01,265 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 74 [2019-09-08 11:38:01,447 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2019-09-08 11:38:02,063 WARN L188 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2019-09-08 11:38:02,463 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 46 [2019-09-08 11:38:03,172 WARN L188 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 73 [2019-09-08 11:38:05,713 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 71 [2019-09-08 11:38:06,083 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 66 [2019-09-08 11:38:06,569 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 72 [2019-09-08 11:38:06,836 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2019-09-08 11:38:07,177 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2019-09-08 11:38:07,622 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 67 [2019-09-08 11:38:07,861 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 42 [2019-09-08 11:38:08,181 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 47 [2019-09-08 11:38:08,734 WARN L188 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 87 [2019-09-08 11:38:09,434 WARN L188 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 75 [2019-09-08 11:38:10,063 WARN L188 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 73 [2019-09-08 11:38:10,654 WARN L188 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 83 [2019-09-08 11:38:10,888 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 51 [2019-09-08 11:38:11,097 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2019-09-08 11:38:11,301 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2019-09-08 11:38:11,685 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2019-09-08 11:38:12,148 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2019-09-08 11:38:12,855 WARN L188 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 91 [2019-09-08 11:38:13,400 WARN L188 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 76 [2019-09-08 11:38:13,631 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2019-09-08 11:38:13,872 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2019-09-08 11:38:14,207 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2019-09-08 11:38:14,520 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-08 11:38:14,924 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 70 [2019-09-08 11:38:15,144 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-09-08 11:38:15,431 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2019-09-08 11:38:15,651 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2019-09-08 11:38:15,911 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-08 11:38:16,260 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 60 [2019-09-08 11:38:16,485 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2019-09-08 11:38:16,957 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 91 [2019-09-08 11:38:17,314 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2019-09-08 11:38:17,633 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2019-09-08 11:38:18,150 WARN L188 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 74 [2019-09-08 11:38:18,647 WARN L188 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 84 [2019-09-08 11:38:18,818 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-09-08 11:38:21,196 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2019-09-08 11:38:21,544 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-08 11:38:21,818 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-08 11:38:22,057 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 44 [2019-09-08 11:38:22,507 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2019-09-08 11:38:22,686 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-09-08 11:38:23,028 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 44 [2019-09-08 11:38:23,866 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 73 [2019-09-08 11:38:24,214 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 61 [2019-09-08 11:38:24,405 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2019-09-08 11:38:24,740 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2019-09-08 11:38:24,983 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 42 [2019-09-08 11:38:25,704 WARN L188 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 75 [2019-09-08 11:38:25,939 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 47 [2019-09-08 11:38:26,259 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2019-09-08 11:38:26,605 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2019-09-08 11:38:27,005 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2019-09-08 11:38:27,793 WARN L188 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 96 [2019-09-08 11:38:28,080 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 51 [2019-09-08 11:38:28,319 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2019-09-08 11:38:28,635 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2019-09-08 11:38:29,117 WARN L188 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 77 [2019-09-08 11:38:29,612 WARN L188 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 73 [2019-09-08 11:38:30,032 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 70 [2019-09-08 11:38:30,308 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2019-09-08 11:38:30,585 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2019-09-08 11:38:30,788 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2019-09-08 11:38:30,947 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2019-09-08 11:38:31,159 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2019-09-08 11:38:31,600 WARN L188 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 87 [2019-09-08 11:38:32,202 WARN L188 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 76 [2019-09-08 11:38:32,727 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 74 [2019-09-08 11:38:33,224 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 84 [2019-09-08 11:38:33,396 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 11:38:33,546 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2019-09-08 11:38:33,875 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-08 11:38:34,212 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2019-09-08 11:38:34,703 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 91 [2019-09-08 11:38:35,196 WARN L188 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 76 [2019-09-08 11:38:35,366 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-09-08 11:38:35,624 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-08 11:38:35,999 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43 [2019-09-08 11:38:36,387 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2019-09-08 11:38:36,815 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2019-09-08 11:38:37,146 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2019-09-08 11:38:37,401 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2019-09-08 11:38:38,001 WARN L188 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 73 [2019-09-08 11:38:38,264 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-09-08 11:38:39,048 WARN L188 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 76 [2019-09-08 11:38:39,234 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2019-09-08 11:38:39,491 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-08 11:38:39,744 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-08 11:38:40,055 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-08 11:38:40,720 WARN L188 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 95 [2019-09-08 11:38:40,898 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 11:38:41,157 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-08 11:38:41,607 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2019-09-08 11:38:42,126 WARN L188 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 82 [2019-09-08 11:38:42,678 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 60 [2019-09-08 11:38:43,253 WARN L188 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 77 [2019-09-08 11:38:43,752 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2019-09-08 11:38:44,184 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-08 11:38:44,520 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-08 11:38:44,809 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 32 [2019-09-08 11:38:45,244 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 50 [2019-09-08 11:38:45,630 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 60 [2019-09-08 11:38:46,075 WARN L188 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 77 [2019-09-08 11:38:46,906 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 45 [2019-09-08 11:38:47,316 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 50 [2019-09-08 11:38:47,961 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 52 [2019-09-08 11:38:48,341 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2019-09-08 11:38:48,548 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 41 [2019-09-08 11:38:49,028 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2019-09-08 11:38:49,349 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2019-09-08 11:38:49,711 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 31 [2019-09-08 11:38:51,001 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2019-09-08 11:38:51,676 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 41 [2019-09-08 11:38:51,956 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2019-09-08 11:38:52,266 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-09-08 11:38:52,733 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2019-09-08 11:38:53,248 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2019-09-08 11:38:53,886 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 80 [2019-09-08 11:38:54,092 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 31 [2019-09-08 11:38:54,610 WARN L188 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 71 [2019-09-08 11:38:55,020 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 63 [2019-09-08 11:38:55,756 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2019-09-08 11:38:56,124 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2019-09-08 11:38:56,607 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 80 [2019-09-08 11:38:57,097 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2019-09-08 11:38:57,355 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 44 [2019-09-08 11:38:57,917 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-09-08 11:38:58,302 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 41 [2019-09-08 11:38:58,686 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 54 [2019-09-08 11:38:59,007 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2019-09-08 11:38:59,427 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 70 [2019-09-08 11:38:59,952 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 80 [2019-09-08 11:39:00,287 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2019-09-08 11:39:00,619 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2019-09-08 11:39:00,919 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 44 [2019-09-08 11:39:01,436 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-08 11:39:01,635 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2019-09-08 11:39:02,324 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2019-09-08 11:39:02,655 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-08 11:39:03,110 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 70 [2019-09-08 11:39:03,572 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 80 [2019-09-08 11:39:03,904 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 66 [2019-09-08 11:39:04,263 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 57 [2019-09-08 11:39:04,710 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2019-09-08 11:39:05,206 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 71 [2019-09-08 11:39:05,815 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2019-09-08 11:39:06,156 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-08 11:39:06,720 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 88 [2019-09-08 11:39:07,114 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2019-09-08 11:39:07,440 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2019-09-08 11:39:07,984 WARN L188 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 71 [2019-09-08 11:39:08,531 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 81 [2019-09-08 11:39:08,842 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 62 [2019-09-08 11:39:09,174 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 57 [2019-09-08 11:39:09,535 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2019-09-08 11:39:09,885 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 62 [2019-09-08 11:39:10,078 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2019-09-08 11:39:11,014 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2019-09-08 11:39:11,215 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-08 11:39:11,806 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2019-09-08 11:39:12,338 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 84 [2019-09-08 11:39:12,951 WARN L188 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 73 [2019-09-08 11:39:13,546 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 71 [2019-09-08 11:39:14,054 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 81 [2019-09-08 11:39:14,681 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 88 [2019-09-08 11:39:15,171 WARN L188 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 73 [2019-09-08 11:39:15,714 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 58 [2019-09-08 11:39:15,900 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 43 [2019-09-08 11:39:16,182 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 49 [2019-09-08 11:39:17,147 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-09-08 11:39:17,569 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-08 11:39:18,475 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 73 [2019-09-08 11:39:19,149 WARN L188 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 92 [2019-09-08 11:39:19,522 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 58 [2019-09-08 11:39:19,996 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2019-09-08 11:39:21,008 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2019-09-08 11:39:21,305 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2019-09-08 11:39:21,517 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2019-09-08 11:39:21,735 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-09-08 11:39:22,651 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2019-09-08 11:39:22,941 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 49 [2019-09-08 11:39:23,673 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2019-09-08 11:39:23,955 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2019-09-08 11:39:24,170 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2019-09-08 11:39:24,384 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-09-08 11:39:24,955 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 56 [2019-09-08 11:39:25,293 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 54 [2019-09-08 11:39:25,607 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 49 [2019-09-08 11:39:26,197 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-08 11:39:26,805 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2019-09-08 11:39:27,098 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2019-09-08 11:39:27,817 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2019-09-08 11:39:28,035 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-08 11:39:28,695 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2019-09-08 11:39:29,668 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2019-09-08 11:39:33,712 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 53 [2019-09-08 11:39:34,360 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-08 11:39:35,151 WARN L188 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2019-09-08 11:39:35,455 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2019-09-08 11:39:35,712 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2019-09-08 11:39:36,276 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2019-09-08 11:39:36,656 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-08 11:39:36,887 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2019-09-08 11:39:37,517 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 56 [2019-09-08 11:39:38,177 WARN L188 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 69 [2019-09-08 11:39:38,556 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2019-09-08 11:39:38,845 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2019-09-08 11:39:39,506 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2019-09-08 11:39:39,763 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-08 11:39:40,119 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-08 11:39:40,316 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2019-09-08 11:39:40,920 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 53 [2019-09-08 11:39:41,351 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2019-09-08 11:39:41,659 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2019-09-08 11:39:41,957 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2019-09-08 11:39:42,334 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2019-09-08 11:39:42,891 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2019-09-08 11:39:43,262 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-08 11:39:43,512 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-08 11:39:43,886 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-08 11:39:44,484 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-08 11:39:45,130 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 56 [2019-09-08 11:39:45,475 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2019-09-08 11:39:45,767 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2019-09-08 11:39:46,198 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 69 [2019-09-08 11:39:46,523 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2019-09-08 11:39:46,802 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2019-09-08 11:39:47,187 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2019-09-08 11:39:47,487 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2019-09-08 11:39:48,388 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2019-09-08 11:39:48,712 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2019-09-08 11:39:49,091 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2019-09-08 11:39:49,341 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-08 11:39:49,579 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-08 11:39:49,954 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-08 11:39:50,180 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2019-09-08 11:39:50,410 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2019-09-08 11:39:51,099 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 52 [2019-09-08 11:39:51,431 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2019-09-08 11:39:51,688 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2019-09-08 11:39:52,188 WARN L188 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 69 [2019-09-08 11:39:52,651 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2019-09-08 11:39:52,958 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2019-09-08 11:39:53,276 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 56 [2019-09-08 11:39:53,586 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2019-09-08 11:39:53,845 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2019-09-08 11:39:54,243 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2019-09-08 11:39:54,554 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2019-09-08 11:39:55,291 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2019-09-08 11:39:55,490 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2019-09-08 11:39:55,768 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2019-09-08 11:39:56,046 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2019-09-08 11:39:56,274 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2019-09-08 11:39:56,663 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-08 11:39:56,948 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-09-08 11:39:57,384 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-08 11:39:57,792 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-08 11:39:58,086 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-08 11:39:59,383 WARN L188 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2019-09-08 11:39:59,920 WARN L188 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 69 [2019-09-08 11:40:00,402 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 70 [2019-09-08 11:40:00,719 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2019-09-08 11:40:01,036 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 51 [2019-09-08 11:40:01,313 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 54 [2019-09-08 11:40:01,571 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2019-09-08 11:40:02,042 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 70 [2019-09-08 11:40:03,872 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2019-09-08 11:40:04,191 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2019-09-08 11:40:04,990 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2019-09-08 11:40:05,239 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 44 [2019-09-08 11:40:05,418 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2019-09-08 11:40:05,683 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2019-09-08 11:40:06,178 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-08 11:40:06,578 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-08 11:40:06,773 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-08 11:40:06,965 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-08 11:40:07,488 WARN L188 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-08 11:40:07,932 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-08 11:40:08,332 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-08 11:40:08,593 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2019-09-08 11:40:08,796 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-08 11:40:09,027 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 54 [2019-09-08 11:40:10,224 WARN L188 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2019-09-08 11:40:10,790 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2019-09-08 11:40:11,246 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 71 [2019-09-08 11:40:11,974 WARN L188 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2019-09-08 11:40:12,303 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2019-09-08 11:40:13,062 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 44 [2019-09-08 11:40:13,566 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-08 11:40:14,020 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-08 11:40:14,421 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-08 11:40:14,618 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-09-08 11:40:14,819 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2019-09-08 11:40:15,016 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-08 11:40:15,363 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-09-08 11:40:15,844 WARN L188 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-08 11:40:16,046 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2019-09-08 11:40:16,237 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-08 11:40:16,517 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-08 11:40:17,765 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2019-09-08 11:40:18,747 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-08 11:40:18,947 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2019-09-08 11:40:19,231 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-08 11:40:19,529 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-08 11:40:20,237 WARN L188 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-09-08 11:40:20,445 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-09-08 11:40:20,634 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-08 11:40:20,920 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-08 11:40:22,459 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-08 11:40:22,770 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-08 11:40:23,045 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 11:40:36,661 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-08 11:40:40,583 WARN L188 SmtUtils]: Spent 3.41 s on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2019-09-08 11:40:41,170 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2019-09-08 11:40:41,813 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-08 11:40:42,042 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2019-09-08 11:40:42,744 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-08 11:40:45,903 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2019-09-08 11:40:46,291 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2019-09-08 11:40:46,565 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-08 11:40:46,938 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-09-08 11:40:47,686 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2019-09-08 11:40:47,974 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2019-09-08 11:40:48,220 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-08 11:40:48,463 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-09-08 11:40:49,473 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 11:40:50,248 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 11:40:50,477 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 11:40:51,290 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 11:40:54,523 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-09-08 11:40:55,404 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-09-08 11:40:55,736 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:40:55,977 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 54 [2019-09-08 11:40:56,778 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:40:57,025 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2019-09-08 11:40:57,252 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 11:40:57,578 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:40:58,262 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 11:40:58,624 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:40:58,851 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-09-08 11:40:59,175 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:40:59,403 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 11:41:00,096 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-09-08 11:41:00,504 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:41:00,758 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 11:41:01,011 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2019-09-08 11:41:01,244 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 11:41:01,467 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-08 11:41:01,791 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:41:02,044 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 54 [2019-09-08 11:41:02,962 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2019-09-08 11:41:03,289 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 11:41:03,525 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-08 11:41:03,920 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:41:04,174 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2019-09-08 11:41:04,450 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2019-09-08 11:41:04,676 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-08 11:41:05,059 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2019-09-08 11:41:05,391 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-08 11:41:05,620 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 11:41:06,290 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2019-09-08 11:41:06,576 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-08 11:41:07,053 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2019-09-08 11:41:07,517 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-08 11:41:07,821 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 11:41:08,276 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-09-08 11:41:08,682 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2019-09-08 11:41:09,038 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-08 11:41:09,275 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2019-09-08 11:41:10,176 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-09-08 11:41:10,674 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2019-09-08 11:41:11,078 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-08 11:41:11,342 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2019-09-08 11:41:11,787 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-09-08 11:41:15,789 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-09-08 11:41:27,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:41:27,074 INFO L93 Difference]: Finished difference Result 438484 states and 587618 transitions. [2019-09-08 11:41:27,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 763 states. [2019-09-08 11:41:27,075 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 67 [2019-09-08 11:41:27,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:41:28,023 INFO L225 Difference]: With dead ends: 438484 [2019-09-08 11:41:28,023 INFO L226 Difference]: Without dead ends: 396653 [2019-09-08 11:41:28,216 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 833 GetRequests, 49 SyntacticMatches, 3 SemanticMatches, 781 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293227 ImplicationChecksByTransitivity, 228.4s TimeCoverageRelationStatistics Valid=54831, Invalid=557475, Unknown=0, NotChecked=0, Total=612306 [2019-09-08 11:41:28,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396653 states. [2019-09-08 11:41:44,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396653 to 62807. [2019-09-08 11:41:44,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62807 states. [2019-09-08 11:41:44,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62807 states to 62807 states and 85990 transitions. [2019-09-08 11:41:44,934 INFO L78 Accepts]: Start accepts. Automaton has 62807 states and 85990 transitions. Word has length 67 [2019-09-08 11:41:44,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:41:44,935 INFO L475 AbstractCegarLoop]: Abstraction has 62807 states and 85990 transitions. [2019-09-08 11:41:44,935 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-09-08 11:41:44,935 INFO L276 IsEmpty]: Start isEmpty. Operand 62807 states and 85990 transitions. [2019-09-08 11:41:44,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-08 11:41:44,938 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:41:44,938 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:41:44,939 INFO L418 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:41:44,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:41:44,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1602445283, now seen corresponding path program 1 times [2019-09-08 11:41:44,939 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:41:44,939 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:41:44,940 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:41:44,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:41:44,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:41:44,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:41:45,906 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:41:45,907 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:41:45,907 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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 [2019-09-08 11:41:45,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:41:45,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:41:45,993 INFO L256 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 43 conjunts are in the unsatisfiable core [2019-09-08 11:41:45,995 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:41:46,691 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:41:47,071 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-09-08 11:41:47,073 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-08 11:41:47,289 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-09-08 11:41:47,556 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-09-08 11:41:47,870 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2019-09-08 11:41:47,871 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-08 11:41:48,557 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:41:48,607 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:41:48,611 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:41:48,611 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 21] total 38 [2019-09-08 11:41:48,612 INFO L454 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-09-08 11:41:48,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-09-08 11:41:48,612 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1271, Unknown=0, NotChecked=0, Total=1406 [2019-09-08 11:41:48,613 INFO L87 Difference]: Start difference. First operand 62807 states and 85990 transitions. Second operand 38 states. [2019-09-08 11:41:49,627 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 36 [2019-09-08 11:41:49,834 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 38 [2019-09-08 11:41:50,037 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 41 [2019-09-08 11:41:50,269 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 45 [2019-09-08 11:41:50,628 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 57 [2019-09-08 11:41:51,073 WARN L188 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 79 [2019-09-08 11:41:51,258 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 40 [2019-09-08 11:41:51,733 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 79 [2019-09-08 11:41:52,110 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 77 [2019-09-08 11:41:52,910 WARN L188 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 90 [2019-09-08 11:41:53,269 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 70 [2019-09-08 11:41:53,882 WARN L188 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 82 [2019-09-08 11:41:54,375 WARN L188 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 86 [2019-09-08 11:41:54,777 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 51 [2019-09-08 11:41:55,056 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2019-09-08 11:41:55,330 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 46 [2019-09-08 11:41:55,849 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 65 [2019-09-08 11:41:56,463 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2019-09-08 11:41:56,755 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-08 11:41:57,353 WARN L188 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 88 [2019-09-08 11:41:57,662 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 44 [2019-09-08 11:41:58,316 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2019-09-08 11:41:58,649 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2019-09-08 11:41:59,168 WARN L188 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 90 [2019-09-08 11:41:59,379 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 40 [2019-09-08 11:41:59,956 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 53 [2019-09-08 11:42:00,486 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 56 [2019-09-08 11:42:00,897 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-08 11:42:01,544 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2019-09-08 11:42:01,777 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 40 [2019-09-08 11:42:02,251 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-08 11:42:03,207 WARN L188 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 92 [2019-09-08 11:42:03,735 WARN L188 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 90 [2019-09-08 11:42:04,551 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2019-09-08 11:42:04,864 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-08 11:42:05,117 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2019-09-08 11:42:06,026 WARN L188 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 100 [2019-09-08 11:42:06,440 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 72 [2019-09-08 11:42:07,266 WARN L188 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 81 [2019-09-08 11:42:07,499 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2019-09-08 11:42:08,035 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-09-08 11:42:08,238 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 41 [2019-09-08 11:42:09,019 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 72 [2019-09-08 11:42:09,546 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2019-09-08 11:42:09,810 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 43 [2019-09-08 11:42:10,006 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2019-09-08 11:42:11,350 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2019-09-08 11:42:12,121 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 55 [2019-09-08 11:42:12,402 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 65 [2019-09-08 11:42:12,686 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2019-09-08 11:42:13,031 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 54 [2019-09-08 11:42:13,396 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 59 [2019-09-08 11:42:13,612 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2019-09-08 11:42:13,778 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 43 [2019-09-08 11:42:14,426 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2019-09-08 11:42:14,877 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 42 [2019-09-08 11:42:15,286 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 76 [2019-09-08 11:42:15,627 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 77 [2019-09-08 11:42:15,780 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 37 [2019-09-08 11:42:16,224 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 87 [2019-09-08 11:42:16,468 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2019-09-08 11:42:16,711 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 45 [2019-09-08 11:42:17,033 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 56 [2019-09-08 11:42:17,528 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 80 [2019-09-08 11:42:17,974 WARN L188 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 82 [2019-09-08 11:42:18,335 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2019-09-08 11:42:18,803 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2019-09-08 11:42:19,397 WARN L188 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 85 [2019-09-08 11:42:19,788 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2019-09-08 11:42:20,557 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2019-09-08 11:42:21,535 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2019-09-08 11:42:23,742 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2019-09-08 11:42:25,046 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 42 [2019-09-08 11:42:25,904 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 88 [2019-09-08 11:42:26,132 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 63 [2019-09-08 11:42:27,018 WARN L188 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 93 [2019-09-08 11:42:27,263 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 59 [2019-09-08 11:42:28,395 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 73 [2019-09-08 11:42:30,463 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2019-09-08 11:42:39,586 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 79 [2019-09-08 11:42:40,563 WARN L188 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 84 [2019-09-08 11:42:41,380 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2019-09-08 11:42:55,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:42:55,762 INFO L93 Difference]: Finished difference Result 198795 states and 269716 transitions. [2019-09-08 11:42:55,763 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 156 states. [2019-09-08 11:42:55,763 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 67 [2019-09-08 11:42:55,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:42:55,970 INFO L225 Difference]: With dead ends: 198795 [2019-09-08 11:42:55,970 INFO L226 Difference]: Without dead ends: 159410 [2019-09-08 11:42:56,024 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 47 SyntacticMatches, 3 SemanticMatches, 183 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13161 ImplicationChecksByTransitivity, 31.5s TimeCoverageRelationStatistics Valid=5272, Invalid=28768, Unknown=0, NotChecked=0, Total=34040 [2019-09-08 11:42:56,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159410 states. [2019-09-08 11:43:12,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159410 to 69278. [2019-09-08 11:43:12,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69278 states. [2019-09-08 11:43:12,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69278 states to 69278 states and 95370 transitions. [2019-09-08 11:43:12,676 INFO L78 Accepts]: Start accepts. Automaton has 69278 states and 95370 transitions. Word has length 67 [2019-09-08 11:43:12,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:43:12,676 INFO L475 AbstractCegarLoop]: Abstraction has 69278 states and 95370 transitions. [2019-09-08 11:43:12,676 INFO L476 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-09-08 11:43:12,676 INFO L276 IsEmpty]: Start isEmpty. Operand 69278 states and 95370 transitions. [2019-09-08 11:43:12,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-08 11:43:12,679 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:43:12,679 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:43:12,679 INFO L418 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:43:12,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:43:12,680 INFO L82 PathProgramCache]: Analyzing trace with hash 871871289, now seen corresponding path program 1 times [2019-09-08 11:43:12,680 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:43:12,680 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:43:12,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:43:12,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:43:12,681 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:43:12,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:43:12,715 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-08 11:43:12,715 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:43:12,715 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:43:12,716 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:43:12,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:43:12,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:43:12,716 INFO L87 Difference]: Start difference. First operand 69278 states and 95370 transitions. Second operand 3 states. [2019-09-08 11:43:23,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:43:23,374 INFO L93 Difference]: Finished difference Result 126827 states and 174856 transitions. [2019-09-08 11:43:23,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:43:23,375 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2019-09-08 11:43:23,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:43:23,444 INFO L225 Difference]: With dead ends: 126827 [2019-09-08 11:43:23,444 INFO L226 Difference]: Without dead ends: 57574 [2019-09-08 11:43:23,484 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:43:23,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57574 states. [2019-09-08 11:43:36,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57574 to 57574. [2019-09-08 11:43:36,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57574 states. [2019-09-08 11:43:36,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57574 states to 57574 states and 78201 transitions. [2019-09-08 11:43:36,083 INFO L78 Accepts]: Start accepts. Automaton has 57574 states and 78201 transitions. Word has length 67 [2019-09-08 11:43:36,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:43:36,083 INFO L475 AbstractCegarLoop]: Abstraction has 57574 states and 78201 transitions. [2019-09-08 11:43:36,084 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:43:36,084 INFO L276 IsEmpty]: Start isEmpty. Operand 57574 states and 78201 transitions. [2019-09-08 11:43:36,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-08 11:43:36,085 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:43:36,086 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:43:36,086 INFO L418 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:43:36,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:43:36,086 INFO L82 PathProgramCache]: Analyzing trace with hash -217937935, now seen corresponding path program 1 times [2019-09-08 11:43:36,086 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:43:36,087 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:43:36,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:43:36,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:43:36,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:43:36,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:43:36,155 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:43:36,156 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:43:36,156 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:43:36,156 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:43:36,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:43:36,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:43:36,157 INFO L87 Difference]: Start difference. First operand 57574 states and 78201 transitions. Second operand 3 states. [2019-09-08 11:43:46,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:43:46,131 INFO L93 Difference]: Finished difference Result 113007 states and 153765 transitions. [2019-09-08 11:43:46,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:43:46,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-09-08 11:43:46,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:43:46,194 INFO L225 Difference]: With dead ends: 113007 [2019-09-08 11:43:46,195 INFO L226 Difference]: Without dead ends: 55458 [2019-09-08 11:43:46,228 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:43:46,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55458 states. [2019-09-08 11:43:56,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55458 to 53764. [2019-09-08 11:43:56,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53764 states. [2019-09-08 11:43:56,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53764 states to 53764 states and 71909 transitions. [2019-09-08 11:43:56,271 INFO L78 Accepts]: Start accepts. Automaton has 53764 states and 71909 transitions. Word has length 68 [2019-09-08 11:43:56,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:43:56,271 INFO L475 AbstractCegarLoop]: Abstraction has 53764 states and 71909 transitions. [2019-09-08 11:43:56,271 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:43:56,271 INFO L276 IsEmpty]: Start isEmpty. Operand 53764 states and 71909 transitions. [2019-09-08 11:43:56,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-08 11:43:56,273 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:43:56,273 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:43:56,273 INFO L418 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:43:56,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:43:56,273 INFO L82 PathProgramCache]: Analyzing trace with hash 1310845681, now seen corresponding path program 1 times [2019-09-08 11:43:56,273 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:43:56,273 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:43:56,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:43:56,274 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:43:56,274 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:43:56,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:43:56,312 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:43:56,313 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:43:56,313 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:43:56,313 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:43:56,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:43:56,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:43:56,314 INFO L87 Difference]: Start difference. First operand 53764 states and 71909 transitions. Second operand 3 states. [2019-09-08 11:44:01,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:01,034 INFO L93 Difference]: Finished difference Result 77962 states and 104177 transitions. [2019-09-08 11:44:01,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:44:01,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-09-08 11:44:01,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:01,057 INFO L225 Difference]: With dead ends: 77962 [2019-09-08 11:44:01,057 INFO L226 Difference]: Without dead ends: 24223 [2019-09-08 11:44:01,079 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:44:01,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24223 states. [2019-09-08 11:44:05,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24223 to 24221. [2019-09-08 11:44:05,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24221 states. [2019-09-08 11:44:05,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24221 states to 24221 states and 31750 transitions. [2019-09-08 11:44:05,140 INFO L78 Accepts]: Start accepts. Automaton has 24221 states and 31750 transitions. Word has length 68 [2019-09-08 11:44:05,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:05,140 INFO L475 AbstractCegarLoop]: Abstraction has 24221 states and 31750 transitions. [2019-09-08 11:44:05,141 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:44:05,141 INFO L276 IsEmpty]: Start isEmpty. Operand 24221 states and 31750 transitions. [2019-09-08 11:44:05,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-08 11:44:05,142 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:05,142 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:05,142 INFO L418 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:05,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:05,142 INFO L82 PathProgramCache]: Analyzing trace with hash -2039229901, now seen corresponding path program 1 times [2019-09-08 11:44:05,142 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:05,142 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:05,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:05,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:05,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:05,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:05,169 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-08 11:44:05,170 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:44:05,170 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:44:05,170 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:44:05,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:44:05,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:44:05,170 INFO L87 Difference]: Start difference. First operand 24221 states and 31750 transitions. Second operand 3 states. [2019-09-08 11:44:08,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:08,608 INFO L93 Difference]: Finished difference Result 43658 states and 57355 transitions. [2019-09-08 11:44:08,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:44:08,608 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-09-08 11:44:08,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:08,630 INFO L225 Difference]: With dead ends: 43658 [2019-09-08 11:44:08,630 INFO L226 Difference]: Without dead ends: 19462 [2019-09-08 11:44:08,646 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:44:08,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19462 states. [2019-09-08 11:44:11,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19462 to 19462. [2019-09-08 11:44:11,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19462 states. [2019-09-08 11:44:11,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19462 states to 19462 states and 25179 transitions. [2019-09-08 11:44:11,963 INFO L78 Accepts]: Start accepts. Automaton has 19462 states and 25179 transitions. Word has length 68 [2019-09-08 11:44:11,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:11,964 INFO L475 AbstractCegarLoop]: Abstraction has 19462 states and 25179 transitions. [2019-09-08 11:44:11,964 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:44:11,964 INFO L276 IsEmpty]: Start isEmpty. Operand 19462 states and 25179 transitions. [2019-09-08 11:44:11,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-08 11:44:11,965 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:11,965 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:11,965 INFO L418 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:11,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:11,966 INFO L82 PathProgramCache]: Analyzing trace with hash 59080277, now seen corresponding path program 1 times [2019-09-08 11:44:11,966 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:11,966 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:11,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:11,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:11,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:11,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:13,472 WARN L188 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 26 DAG size of output: 18 [2019-09-08 11:44:14,564 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:44:14,565 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:44:14,565 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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 [2019-09-08 11:44:14,577 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:14,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:14,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 31 conjunts are in the unsatisfiable core [2019-09-08 11:44:14,649 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:44:14,916 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:44:15,218 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:44:15,757 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:44:15,977 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:44:15,980 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:44:15,981 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17] total 36 [2019-09-08 11:44:15,981 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-09-08 11:44:15,981 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-09-08 11:44:15,981 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1164, Unknown=0, NotChecked=0, Total=1260 [2019-09-08 11:44:15,982 INFO L87 Difference]: Start difference. First operand 19462 states and 25179 transitions. Second operand 36 states. [2019-09-08 11:44:17,015 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2019-09-08 11:44:17,199 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2019-09-08 11:44:17,417 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2019-09-08 11:44:17,641 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2019-09-08 11:44:17,887 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 59 [2019-09-08 11:44:18,196 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 69 [2019-09-08 11:44:18,502 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2019-09-08 11:44:18,688 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 46 [2019-09-08 11:44:18,996 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2019-09-08 11:44:19,235 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2019-09-08 11:44:19,419 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 39 [2019-09-08 11:44:19,747 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-08 11:44:20,042 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2019-09-08 11:44:20,252 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 40 [2019-09-08 11:44:20,586 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-08 11:44:21,053 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2019-09-08 11:44:21,360 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2019-09-08 11:44:21,516 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 39 [2019-09-08 11:44:21,715 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 36 [2019-09-08 11:44:21,974 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-09-08 11:44:22,285 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2019-09-08 11:44:23,814 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2019-09-08 11:44:23,985 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2019-09-08 11:44:24,796 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2019-09-08 11:44:24,984 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-08 11:44:25,415 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 46 [2019-09-08 11:44:25,569 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 45 [2019-09-08 11:44:25,760 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2019-09-08 11:44:26,078 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2019-09-08 11:44:26,369 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-08 11:44:26,662 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2019-09-08 11:44:26,940 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2019-09-08 11:44:27,243 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-08 11:44:27,574 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2019-09-08 11:44:27,948 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 93 [2019-09-08 11:44:28,145 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-09-08 11:44:28,483 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2019-09-08 11:44:28,667 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-08 11:44:28,868 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-08 11:44:29,068 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-08 11:44:29,221 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-08 11:44:29,391 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2019-09-08 11:44:29,558 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 11:44:29,873 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-08 11:44:30,035 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-08 11:44:30,232 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-08 11:44:30,384 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-09-08 11:44:30,695 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 11:44:30,926 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2019-09-08 11:44:31,091 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2019-09-08 11:44:31,284 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-08 11:44:31,527 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-08 11:44:31,763 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-08 11:44:31,980 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:44:32,179 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 11:44:32,446 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2019-09-08 11:44:32,645 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2019-09-08 11:44:32,844 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-08 11:44:33,034 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2019-09-08 11:44:33,375 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-09-08 11:44:33,563 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-09-08 11:44:33,761 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-08 11:44:34,017 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-09-08 11:44:34,331 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2019-09-08 11:44:34,481 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-09-08 11:44:34,758 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-08 11:44:35,011 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2019-09-08 11:44:35,436 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-09-08 11:44:35,653 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-09-08 11:44:37,336 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-08 11:44:37,599 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-09-08 11:44:38,265 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-08 11:44:38,519 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-08 11:44:42,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:42,346 INFO L93 Difference]: Finished difference Result 42174 states and 55348 transitions. [2019-09-08 11:44:42,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2019-09-08 11:44:42,346 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 69 [2019-09-08 11:44:42,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:42,384 INFO L225 Difference]: With dead ends: 42174 [2019-09-08 11:44:42,384 INFO L226 Difference]: Without dead ends: 36308 [2019-09-08 11:44:42,397 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6742 ImplicationChecksByTransitivity, 20.6s TimeCoverageRelationStatistics Valid=2926, Invalid=16534, Unknown=0, NotChecked=0, Total=19460 [2019-09-08 11:44:42,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36308 states. [2019-09-08 11:44:46,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36308 to 23131. [2019-09-08 11:44:46,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23131 states. [2019-09-08 11:44:46,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23131 states to 23131 states and 30104 transitions. [2019-09-08 11:44:46,831 INFO L78 Accepts]: Start accepts. Automaton has 23131 states and 30104 transitions. Word has length 69 [2019-09-08 11:44:46,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:46,831 INFO L475 AbstractCegarLoop]: Abstraction has 23131 states and 30104 transitions. [2019-09-08 11:44:46,832 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-09-08 11:44:46,832 INFO L276 IsEmpty]: Start isEmpty. Operand 23131 states and 30104 transitions. [2019-09-08 11:44:46,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-08 11:44:46,833 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:46,833 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:46,833 INFO L418 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:46,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:46,833 INFO L82 PathProgramCache]: Analyzing trace with hash -156963844, now seen corresponding path program 1 times [2019-09-08 11:44:46,834 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:46,834 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:46,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:46,835 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:46,835 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:46,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:47,604 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:44:47,605 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:44:47,605 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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 [2019-09-08 11:44:47,615 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:47,686 INFO L256 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 21 conjunts are in the unsatisfiable core [2019-09-08 11:44:47,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:44:47,858 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:44:48,128 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:44:48,137 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:44:48,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 12] total 28 [2019-09-08 11:44:48,138 INFO L454 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-09-08 11:44:48,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-09-08 11:44:48,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2019-09-08 11:44:48,143 INFO L87 Difference]: Start difference. First operand 23131 states and 30104 transitions. Second operand 28 states. [2019-09-08 11:44:49,218 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 35 [2019-09-08 11:44:49,594 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 44 [2019-09-08 11:44:49,873 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 63 [2019-09-08 11:44:50,141 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 59 [2019-09-08 11:44:50,442 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 59 [2019-09-08 11:44:50,723 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2019-09-08 11:44:51,138 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 48 [2019-09-08 11:44:51,360 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 48 [2019-09-08 11:44:51,628 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 37 [2019-09-08 11:44:51,901 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 37 [2019-09-08 11:44:52,081 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 37 [2019-09-08 11:44:52,325 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 48 [2019-09-08 11:44:52,562 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 48 [2019-09-08 11:44:53,769 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 39 [2019-09-08 11:44:54,167 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 36 [2019-09-08 11:44:54,505 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 34 [2019-09-08 11:44:54,695 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 23 [2019-09-08 11:44:54,902 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 31 [2019-09-08 11:44:55,342 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 41 [2019-09-08 11:44:55,523 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 32 [2019-09-08 11:44:55,760 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2019-09-08 11:44:56,040 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 60 [2019-09-08 11:44:56,212 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 43 [2019-09-08 11:44:56,473 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 56 [2019-09-08 11:44:56,780 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 43 [2019-09-08 11:44:57,039 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 56 [2019-09-08 11:44:57,476 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 45 [2019-09-08 11:44:58,014 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 45 [2019-09-08 11:45:04,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:45:04,649 INFO L93 Difference]: Finished difference Result 44657 states and 58127 transitions. [2019-09-08 11:45:04,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2019-09-08 11:45:04,649 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 69 [2019-09-08 11:45:04,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:45:04,683 INFO L225 Difference]: With dead ends: 44657 [2019-09-08 11:45:04,684 INFO L226 Difference]: Without dead ends: 35154 [2019-09-08 11:45:04,694 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1413 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=1123, Invalid=4577, Unknown=0, NotChecked=0, Total=5700 [2019-09-08 11:45:04,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35154 states. [2019-09-08 11:45:08,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35154 to 17620. [2019-09-08 11:45:08,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17620 states. [2019-09-08 11:45:08,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17620 states to 17620 states and 22728 transitions. [2019-09-08 11:45:08,577 INFO L78 Accepts]: Start accepts. Automaton has 17620 states and 22728 transitions. Word has length 69 [2019-09-08 11:45:08,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:45:08,577 INFO L475 AbstractCegarLoop]: Abstraction has 17620 states and 22728 transitions. [2019-09-08 11:45:08,577 INFO L476 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-09-08 11:45:08,577 INFO L276 IsEmpty]: Start isEmpty. Operand 17620 states and 22728 transitions. [2019-09-08 11:45:08,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-08 11:45:08,578 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:45:08,579 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:45:08,579 INFO L418 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:45:08,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:45:08,579 INFO L82 PathProgramCache]: Analyzing trace with hash -723465889, now seen corresponding path program 1 times [2019-09-08 11:45:08,579 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:45:08,579 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:45:08,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:08,580 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:45:08,580 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:08,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:45:08,614 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:45:08,614 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:45:08,615 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:45:08,615 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:45:08,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:45:08,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:45:08,615 INFO L87 Difference]: Start difference. First operand 17620 states and 22728 transitions. Second operand 3 states. [2019-09-08 11:45:09,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:45:09,916 INFO L93 Difference]: Finished difference Result 23510 states and 30479 transitions. [2019-09-08 11:45:09,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:45:09,916 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2019-09-08 11:45:09,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:45:09,922 INFO L225 Difference]: With dead ends: 23510 [2019-09-08 11:45:09,922 INFO L226 Difference]: Without dead ends: 5915 [2019-09-08 11:45:09,934 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:45:09,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5915 states. [2019-09-08 11:45:11,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5915 to 5769. [2019-09-08 11:45:11,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5769 states. [2019-09-08 11:45:11,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5769 states to 5769 states and 7476 transitions. [2019-09-08 11:45:11,089 INFO L78 Accepts]: Start accepts. Automaton has 5769 states and 7476 transitions. Word has length 69 [2019-09-08 11:45:11,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:45:11,089 INFO L475 AbstractCegarLoop]: Abstraction has 5769 states and 7476 transitions. [2019-09-08 11:45:11,089 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:45:11,089 INFO L276 IsEmpty]: Start isEmpty. Operand 5769 states and 7476 transitions. [2019-09-08 11:45:11,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-08 11:45:11,090 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:45:11,091 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:45:11,091 INFO L418 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:45:11,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:45:11,091 INFO L82 PathProgramCache]: Analyzing trace with hash -628683308, now seen corresponding path program 1 times [2019-09-08 11:45:11,091 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:45:11,091 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:45:11,092 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:11,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:45:11,093 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:45:11,126 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-08 11:45:11,126 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:45:11,126 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:45:11,127 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:45:11,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:45:11,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:45:11,128 INFO L87 Difference]: Start difference. First operand 5769 states and 7476 transitions. Second operand 3 states. [2019-09-08 11:45:12,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:45:12,062 INFO L93 Difference]: Finished difference Result 9693 states and 12584 transitions. [2019-09-08 11:45:12,062 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:45:12,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2019-09-08 11:45:12,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:45:12,066 INFO L225 Difference]: With dead ends: 9693 [2019-09-08 11:45:12,066 INFO L226 Difference]: Without dead ends: 3985 [2019-09-08 11:45:12,070 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:45:12,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3985 states. [2019-09-08 11:45:12,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3985 to 3985. [2019-09-08 11:45:12,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3985 states. [2019-09-08 11:45:12,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3985 states to 3985 states and 5101 transitions. [2019-09-08 11:45:12,827 INFO L78 Accepts]: Start accepts. Automaton has 3985 states and 5101 transitions. Word has length 69 [2019-09-08 11:45:12,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:45:12,828 INFO L475 AbstractCegarLoop]: Abstraction has 3985 states and 5101 transitions. [2019-09-08 11:45:12,828 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:45:12,828 INFO L276 IsEmpty]: Start isEmpty. Operand 3985 states and 5101 transitions. [2019-09-08 11:45:12,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-08 11:45:12,828 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:45:12,828 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:45:12,829 INFO L418 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:45:12,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:45:12,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1308029272, now seen corresponding path program 1 times [2019-09-08 11:45:12,829 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:45:12,829 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:45:12,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:12,830 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:45:12,830 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:12,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:45:13,467 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:45:13,467 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:45:13,467 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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 [2019-09-08 11:45:13,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:45:13,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:45:13,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 21 conjunts are in the unsatisfiable core [2019-09-08 11:45:13,546 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:45:13,762 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:45:14,072 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:45:14,075 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:45:14,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 12] total 32 [2019-09-08 11:45:14,076 INFO L454 AbstractCegarLoop]: Interpolant automaton has 32 states [2019-09-08 11:45:14,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2019-09-08 11:45:14,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=915, Unknown=0, NotChecked=0, Total=992 [2019-09-08 11:45:14,077 INFO L87 Difference]: Start difference. First operand 3985 states and 5101 transitions. Second operand 32 states. [2019-09-08 11:45:14,256 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-08 11:45:15,770 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2019-09-08 11:45:16,063 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-08 11:45:16,368 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-08 11:45:16,752 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 83 [2019-09-08 11:45:17,152 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 87 [2019-09-08 11:45:17,338 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2019-09-08 11:45:17,523 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2019-09-08 11:45:17,879 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2019-09-08 11:45:18,352 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 30 [2019-09-08 11:45:18,546 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2019-09-08 11:45:18,949 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40 [2019-09-08 11:45:20,271 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2019-09-08 11:45:21,423 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2019-09-08 11:45:24,087 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 39 [2019-09-08 11:45:24,306 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-09-08 11:45:25,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:45:25,391 INFO L93 Difference]: Finished difference Result 8641 states and 11167 transitions. [2019-09-08 11:45:25,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2019-09-08 11:45:25,392 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 70 [2019-09-08 11:45:25,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:45:25,398 INFO L225 Difference]: With dead ends: 8641 [2019-09-08 11:45:25,398 INFO L226 Difference]: Without dead ends: 5988 [2019-09-08 11:45:25,402 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1961 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=1556, Invalid=7374, Unknown=0, NotChecked=0, Total=8930 [2019-09-08 11:45:25,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5988 states. [2019-09-08 11:45:26,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5988 to 3023. [2019-09-08 11:45:26,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3023 states. [2019-09-08 11:45:26,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3023 states to 3023 states and 3872 transitions. [2019-09-08 11:45:26,016 INFO L78 Accepts]: Start accepts. Automaton has 3023 states and 3872 transitions. Word has length 70 [2019-09-08 11:45:26,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:45:26,016 INFO L475 AbstractCegarLoop]: Abstraction has 3023 states and 3872 transitions. [2019-09-08 11:45:26,016 INFO L476 AbstractCegarLoop]: Interpolant automaton has 32 states. [2019-09-08 11:45:26,016 INFO L276 IsEmpty]: Start isEmpty. Operand 3023 states and 3872 transitions. [2019-09-08 11:45:26,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-09-08 11:45:26,018 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:45:26,019 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:45:26,019 INFO L418 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:45:26,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:45:26,019 INFO L82 PathProgramCache]: Analyzing trace with hash -1671026668, now seen corresponding path program 1 times [2019-09-08 11:45:26,019 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:45:26,019 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:45:26,020 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:26,020 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:45:26,021 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:26,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:45:26,347 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 28 proven. 63 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:45:26,347 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:45:26,348 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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 [2019-09-08 11:45:26,411 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:45:26,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:45:26,525 INFO L256 TraceCheckSpWp]: Trace formula consists of 642 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-08 11:45:26,528 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:45:26,644 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:45:26,702 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:45:26,748 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:45:26,856 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:45:27,088 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 36 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (12)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 11:45:27,104 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:45:27,104 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2019-09-08 11:45:27,104 INFO L454 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-09-08 11:45:27,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-09-08 11:45:27,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2019-09-08 11:45:27,105 INFO L87 Difference]: Start difference. First operand 3023 states and 3872 transitions. Second operand 22 states. [2019-09-08 11:45:29,324 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-08 11:45:29,541 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-09-08 11:45:29,724 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2019-09-08 11:45:29,907 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2019-09-08 11:45:30,189 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 61 [2019-09-08 11:45:30,484 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2019-09-08 11:45:30,685 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 64 [2019-09-08 11:45:31,000 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 58 [2019-09-08 11:45:31,194 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 61 [2019-09-08 11:45:31,496 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2019-09-08 11:45:31,672 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2019-09-08 11:45:31,832 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2019-09-08 11:45:31,981 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2019-09-08 11:45:32,252 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 46 [2019-09-08 11:45:32,735 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 64 [2019-09-08 11:45:32,899 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2019-09-08 11:45:33,086 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2019-09-08 11:45:33,274 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2019-09-08 11:45:33,436 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2019-09-08 11:45:33,588 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2019-09-08 11:45:33,733 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2019-09-08 11:45:33,987 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2019-09-08 11:45:34,143 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2019-09-08 11:45:34,307 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 48 [2019-09-08 11:45:34,666 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 53 [2019-09-08 11:45:34,893 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2019-09-08 11:45:35,090 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2019-09-08 11:45:35,274 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2019-09-08 11:45:35,448 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2019-09-08 11:45:35,792 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2019-09-08 11:45:36,133 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2019-09-08 11:45:36,374 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2019-09-08 11:45:36,759 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2019-09-08 11:45:37,164 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 57 [2019-09-08 11:45:37,394 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2019-09-08 11:45:38,048 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 56 [2019-09-08 11:45:38,300 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2019-09-08 11:45:38,462 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2019-09-08 11:45:38,689 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2019-09-08 11:45:38,827 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2019-09-08 11:45:39,155 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2019-09-08 11:45:39,335 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2019-09-08 11:45:39,607 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2019-09-08 11:45:39,762 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2019-09-08 11:45:39,972 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2019-09-08 11:45:40,322 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2019-09-08 11:45:40,701 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2019-09-08 11:45:40,886 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2019-09-08 11:45:41,069 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 48 [2019-09-08 11:45:42,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:45:42,206 INFO L93 Difference]: Finished difference Result 9162 states and 11881 transitions. [2019-09-08 11:45:42,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2019-09-08 11:45:42,206 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 111 [2019-09-08 11:45:42,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:45:42,213 INFO L225 Difference]: With dead ends: 9162 [2019-09-08 11:45:42,214 INFO L226 Difference]: Without dead ends: 6620 [2019-09-08 11:45:42,217 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2811 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=1980, Invalid=8120, Unknown=0, NotChecked=0, Total=10100 [2019-09-08 11:45:42,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6620 states. [2019-09-08 11:45:43,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6620 to 3411. [2019-09-08 11:45:43,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3411 states. [2019-09-08 11:45:43,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3411 states to 3411 states and 4298 transitions. [2019-09-08 11:45:43,032 INFO L78 Accepts]: Start accepts. Automaton has 3411 states and 4298 transitions. Word has length 111 [2019-09-08 11:45:43,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:45:43,032 INFO L475 AbstractCegarLoop]: Abstraction has 3411 states and 4298 transitions. [2019-09-08 11:45:43,032 INFO L476 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-09-08 11:45:43,032 INFO L276 IsEmpty]: Start isEmpty. Operand 3411 states and 4298 transitions. [2019-09-08 11:45:43,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-09-08 11:45:43,034 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:45:43,034 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:45:43,034 INFO L418 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:45:43,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:45:43,035 INFO L82 PathProgramCache]: Analyzing trace with hash 1805752035, now seen corresponding path program 1 times [2019-09-08 11:45:43,035 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:45:43,035 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:45:43,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:43,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:45:43,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:43,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:45:43,194 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 9 proven. 67 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-09-08 11:45:43,195 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:45:43,195 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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) [2019-09-08 11:45:43,219 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:45:43,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:45:43,316 INFO L256 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 26 conjunts are in the unsatisfiable core [2019-09-08 11:45:43,319 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:45:43,405 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 11 proven. 67 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-08 11:45:43,414 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:45:43,415 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7] total 9 [2019-09-08 11:45:43,415 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 11:45:43,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 11:45:43,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-09-08 11:45:43,418 INFO L87 Difference]: Start difference. First operand 3411 states and 4298 transitions. Second operand 9 states. [2019-09-08 11:45:44,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:45:44,907 INFO L93 Difference]: Finished difference Result 8557 states and 10643 transitions. [2019-09-08 11:45:44,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 11:45:44,907 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 111 [2019-09-08 11:45:44,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:45:44,912 INFO L225 Difference]: With dead ends: 8557 [2019-09-08 11:45:44,912 INFO L226 Difference]: Without dead ends: 5428 [2019-09-08 11:45:44,915 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2019-09-08 11:45:44,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5428 states. [2019-09-08 11:45:46,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5428 to 4934. [2019-09-08 11:45:46,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4934 states. [2019-09-08 11:45:46,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4934 states to 4934 states and 5942 transitions. [2019-09-08 11:45:46,127 INFO L78 Accepts]: Start accepts. Automaton has 4934 states and 5942 transitions. Word has length 111 [2019-09-08 11:45:46,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:45:46,127 INFO L475 AbstractCegarLoop]: Abstraction has 4934 states and 5942 transitions. [2019-09-08 11:45:46,127 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 11:45:46,127 INFO L276 IsEmpty]: Start isEmpty. Operand 4934 states and 5942 transitions. [2019-09-08 11:45:46,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-09-08 11:45:46,129 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:45:46,129 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:45:46,130 INFO L418 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:45:46,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:45:46,130 INFO L82 PathProgramCache]: Analyzing trace with hash -975130260, now seen corresponding path program 1 times [2019-09-08 11:45:46,130 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:45:46,130 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:45:46,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:46,131 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:45:46,131 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:46,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:45:46,477 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 38 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:45:46,478 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:45:46,478 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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) [2019-09-08 11:45:46,497 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:45:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:45:46,584 INFO L256 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 29 conjunts are in the unsatisfiable core [2019-09-08 11:45:46,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:45:46,859 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:45:46,860 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:45:46,860 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:45:47,175 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:45:47,175 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:45:47,176 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:45:47,292 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:45:47,655 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 34 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:45:47,659 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:45:47,659 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 30 [2019-09-08 11:45:47,660 INFO L454 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-09-08 11:45:47,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-09-08 11:45:47,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=778, Unknown=0, NotChecked=0, Total=870 [2019-09-08 11:45:47,660 INFO L87 Difference]: Start difference. First operand 4934 states and 5942 transitions. Second operand 30 states. [2019-09-08 11:45:47,838 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 39 [2019-09-08 11:45:48,313 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-08 11:45:48,571 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-08 11:45:48,941 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-08 11:45:49,172 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2019-09-08 11:45:49,414 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 64 [2019-09-08 11:45:49,661 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2019-09-08 11:45:49,888 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2019-09-08 11:45:50,262 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-08 11:45:50,506 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-08 11:45:50,699 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2019-09-08 11:45:51,053 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2019-09-08 11:45:51,257 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-08 11:45:51,626 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 75 [2019-09-08 11:45:51,810 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-08 11:45:52,014 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2019-09-08 11:45:52,206 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-08 11:45:52,545 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 72 [2019-09-08 11:45:52,721 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-08 11:45:52,909 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2019-09-08 11:45:53,107 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2019-09-08 11:45:53,501 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 70 [2019-09-08 11:45:53,660 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-08 11:45:53,834 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2019-09-08 11:45:54,022 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-08 11:45:54,267 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-08 11:45:54,466 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-09-08 11:45:54,729 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 59 [2019-09-08 11:45:54,898 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2019-09-08 11:45:55,195 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 64 [2019-09-08 11:45:55,355 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 47 [2019-09-08 11:45:55,616 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 65 [2019-09-08 11:45:55,787 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2019-09-08 11:45:55,979 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2019-09-08 11:45:56,147 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2019-09-08 11:45:56,487 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 70 [2019-09-08 11:45:56,721 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-09-08 11:45:57,090 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 74 [2019-09-08 11:45:57,460 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2019-09-08 11:45:57,979 WARN L188 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 85 [2019-09-08 11:45:58,138 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2019-09-08 11:45:58,348 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2019-09-08 11:45:58,870 WARN L188 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 86 [2019-09-08 11:45:59,089 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2019-09-08 11:45:59,265 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-08 11:46:00,109 WARN L188 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 87 [2019-09-08 11:46:00,419 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-08 11:46:00,917 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 82 [2019-09-08 11:46:01,263 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-08 11:46:01,802 WARN L188 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 93 [2019-09-08 11:46:01,987 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-08 11:46:02,348 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2019-09-08 11:46:02,566 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 67 [2019-09-08 11:46:02,896 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2019-09-08 11:46:03,126 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2019-09-08 11:46:03,285 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-08 11:46:03,527 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 70 [2019-09-08 11:46:03,795 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2019-09-08 11:46:04,008 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2019-09-08 11:46:04,264 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 68 [2019-09-08 11:46:04,557 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 75 [2019-09-08 11:46:04,811 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2019-09-08 11:46:05,101 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2019-09-08 11:46:05,291 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2019-09-08 11:46:05,676 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 75 [2019-09-08 11:46:05,964 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-08 11:46:06,532 WARN L188 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 81 [2019-09-08 11:46:06,822 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 69 [2019-09-08 11:46:06,993 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-08 11:46:07,315 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 76 [2019-09-08 11:46:07,524 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2019-09-08 11:46:07,808 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-08 11:46:08,307 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 78 [2019-09-08 11:46:08,528 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-08 11:46:08,793 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2019-09-08 11:46:08,976 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2019-09-08 11:46:09,225 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2019-09-08 11:46:09,461 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-08 11:46:09,717 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2019-09-08 11:46:10,031 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 66 [2019-09-08 11:46:10,390 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 72 [2019-09-08 11:46:10,651 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-08 11:46:11,100 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 73 [2019-09-08 11:46:11,768 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2019-09-08 11:46:11,969 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-08 11:46:12,209 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2019-09-08 11:46:12,536 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2019-09-08 11:46:12,874 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 71 [2019-09-08 11:46:13,151 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-08 11:46:13,403 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2019-09-08 11:46:13,710 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 72 [2019-09-08 11:46:13,992 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2019-09-08 11:46:14,241 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-08 11:46:14,518 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 65 [2019-09-08 11:46:14,699 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2019-09-08 11:46:14,922 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2019-09-08 11:46:15,195 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-08 11:46:15,512 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 71 [2019-09-08 11:46:15,719 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 53 [2019-09-08 11:46:16,013 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 62 [2019-09-08 11:46:16,264 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-08 11:46:16,497 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 59 [2019-09-08 11:46:16,726 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 59 [2019-09-08 11:46:17,073 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 65 [2019-09-08 11:46:17,371 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 64 [2019-09-08 11:46:17,732 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 68 [2019-09-08 11:46:18,111 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 80 [2019-09-08 11:46:18,600 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 81 [2019-09-08 11:46:19,124 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2019-09-08 11:46:19,549 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 80 [2019-09-08 11:46:20,003 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 88 [2019-09-08 11:46:20,307 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-08 11:46:22,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:46:22,928 INFO L93 Difference]: Finished difference Result 13994 states and 16595 transitions. [2019-09-08 11:46:22,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2019-09-08 11:46:22,929 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 112 [2019-09-08 11:46:22,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:46:22,943 INFO L225 Difference]: With dead ends: 13994 [2019-09-08 11:46:22,943 INFO L226 Difference]: Without dead ends: 10944 [2019-09-08 11:46:22,949 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 246 GetRequests, 95 SyntacticMatches, 4 SemanticMatches, 147 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7216 ImplicationChecksByTransitivity, 28.3s TimeCoverageRelationStatistics Valid=2507, Invalid=19545, Unknown=0, NotChecked=0, Total=22052 [2019-09-08 11:46:22,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10944 states. [2019-09-08 11:46:24,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10944 to 4934. [2019-09-08 11:46:24,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4934 states. [2019-09-08 11:46:24,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4934 states to 4934 states and 5903 transitions. [2019-09-08 11:46:24,544 INFO L78 Accepts]: Start accepts. Automaton has 4934 states and 5903 transitions. Word has length 112 [2019-09-08 11:46:24,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:46:24,544 INFO L475 AbstractCegarLoop]: Abstraction has 4934 states and 5903 transitions. [2019-09-08 11:46:24,544 INFO L476 AbstractCegarLoop]: Interpolant automaton has 30 states. [2019-09-08 11:46:24,544 INFO L276 IsEmpty]: Start isEmpty. Operand 4934 states and 5903 transitions. [2019-09-08 11:46:24,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-09-08 11:46:24,546 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:46:24,546 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:46:24,546 INFO L418 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:46:24,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:46:24,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1353125581, now seen corresponding path program 1 times [2019-09-08 11:46:24,546 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:46:24,547 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:46:24,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:46:24,548 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:46:24,548 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:46:24,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:46:24,908 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 32 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:46:24,910 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:46:24,910 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:46:24,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:46:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:46:25,027 INFO L256 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 41 conjunts are in the unsatisfiable core [2019-09-08 11:46:25,029 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:46:25,272 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:46:25,367 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:46:25,427 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:46:25,706 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:46:25,807 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:46:26,052 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 32 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:46:26,056 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:46:26,056 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 22] total 36 [2019-09-08 11:46:26,057 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-09-08 11:46:26,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-09-08 11:46:26,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1087, Unknown=0, NotChecked=0, Total=1260 [2019-09-08 11:46:26,057 INFO L87 Difference]: Start difference. First operand 4934 states and 5903 transitions. Second operand 36 states. [2019-09-08 11:46:33,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:46:33,851 INFO L93 Difference]: Finished difference Result 12351 states and 14838 transitions. [2019-09-08 11:46:33,851 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-09-08 11:46:33,852 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 112 [2019-09-08 11:46:33,852 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:46:33,862 INFO L225 Difference]: With dead ends: 12351 [2019-09-08 11:46:33,863 INFO L226 Difference]: Without dead ends: 10684 [2019-09-08 11:46:33,867 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 93 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1547 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=663, Invalid=4739, Unknown=0, NotChecked=0, Total=5402 [2019-09-08 11:46:33,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10684 states. [2019-09-08 11:46:36,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10684 to 7165. [2019-09-08 11:46:36,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7165 states. [2019-09-08 11:46:36,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7165 states to 7165 states and 8601 transitions. [2019-09-08 11:46:36,186 INFO L78 Accepts]: Start accepts. Automaton has 7165 states and 8601 transitions. Word has length 112 [2019-09-08 11:46:36,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:46:36,186 INFO L475 AbstractCegarLoop]: Abstraction has 7165 states and 8601 transitions. [2019-09-08 11:46:36,186 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-09-08 11:46:36,186 INFO L276 IsEmpty]: Start isEmpty. Operand 7165 states and 8601 transitions. [2019-09-08 11:46:36,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-09-08 11:46:36,187 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:46:36,188 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:46:36,188 INFO L418 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:46:36,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:46:36,188 INFO L82 PathProgramCache]: Analyzing trace with hash -360306566, now seen corresponding path program 1 times [2019-09-08 11:46:36,188 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:46:36,189 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:46:36,189 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:46:36,190 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:46:36,190 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:46:36,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:46:37,023 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 13 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:46:37,023 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:46:37,023 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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 [2019-09-08 11:46:37,034 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:46:37,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:46:37,130 INFO L256 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 39 conjunts are in the unsatisfiable core [2019-09-08 11:46:37,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:46:37,413 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:46:37,927 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:46:38,358 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 23 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:46:38,362 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:46:38,363 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 22] total 41 [2019-09-08 11:46:38,363 INFO L454 AbstractCegarLoop]: Interpolant automaton has 41 states [2019-09-08 11:46:38,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2019-09-08 11:46:38,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1519, Unknown=0, NotChecked=0, Total=1640 [2019-09-08 11:46:38,364 INFO L87 Difference]: Start difference. First operand 7165 states and 8601 transitions. Second operand 41 states. [2019-09-08 11:46:38,706 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 77 [2019-09-08 11:46:39,940 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43 [2019-09-08 11:46:40,309 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 41 [2019-09-08 11:46:41,838 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2019-09-08 11:46:42,173 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2019-09-08 11:46:42,370 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2019-09-08 11:46:42,706 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2019-09-08 11:46:43,141 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 53 [2019-09-08 11:46:43,301 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2019-09-08 11:46:43,675 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-09-08 11:46:43,918 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2019-09-08 11:46:44,134 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 51 [2019-09-08 11:46:44,383 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 56 [2019-09-08 11:46:44,718 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2019-09-08 11:46:45,115 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 69 [2019-09-08 11:46:45,373 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 58 [2019-09-08 11:46:45,704 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-08 11:46:46,019 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 68 [2019-09-08 11:46:46,385 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 70 [2019-09-08 11:46:46,687 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-08 11:46:47,102 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 70 [2019-09-08 11:46:47,379 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2019-09-08 11:46:47,831 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 55 [2019-09-08 11:46:48,236 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2019-09-08 11:46:48,651 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2019-09-08 11:46:48,904 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 68 [2019-09-08 11:46:49,186 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2019-09-08 11:46:49,526 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 68 [2019-09-08 11:46:49,918 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2019-09-08 11:46:50,211 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 70 [2019-09-08 11:46:50,590 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2019-09-08 11:46:51,006 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-08 11:46:51,241 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 58 [2019-09-08 11:46:51,830 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2019-09-08 11:46:52,107 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2019-09-08 11:46:52,429 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-08 11:46:52,707 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2019-09-08 11:46:53,071 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 52 [2019-09-08 11:46:53,951 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2019-09-08 11:46:54,178 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-08 11:46:54,577 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-08 11:46:54,816 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2019-09-08 11:46:55,093 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2019-09-08 11:46:55,334 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2019-09-08 11:46:55,603 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 11:46:56,130 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-08 11:46:56,319 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-09-08 11:46:56,637 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2019-09-08 11:46:57,317 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-08 11:46:57,536 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-08 11:46:57,806 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2019-09-08 11:46:58,140 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-08 11:46:58,664 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-08 11:46:59,355 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-09-08 11:47:00,285 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-09-08 11:47:01,014 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2019-09-08 11:47:01,816 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 11:47:02,237 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:47:03,242 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2019-09-08 11:47:09,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:47:09,558 INFO L93 Difference]: Finished difference Result 18657 states and 22453 transitions. [2019-09-08 11:47:09,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 147 states. [2019-09-08 11:47:09,558 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 112 [2019-09-08 11:47:09,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:47:09,573 INFO L225 Difference]: With dead ends: 18657 [2019-09-08 11:47:09,573 INFO L226 Difference]: Without dead ends: 14132 [2019-09-08 11:47:09,580 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 179 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10563 ImplicationChecksByTransitivity, 21.7s TimeCoverageRelationStatistics Valid=2763, Invalid=29817, Unknown=0, NotChecked=0, Total=32580 [2019-09-08 11:47:09,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14132 states. [2019-09-08 11:47:12,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14132 to 9119. [2019-09-08 11:47:12,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9119 states. [2019-09-08 11:47:12,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9119 states to 9119 states and 10953 transitions. [2019-09-08 11:47:12,585 INFO L78 Accepts]: Start accepts. Automaton has 9119 states and 10953 transitions. Word has length 112 [2019-09-08 11:47:12,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:47:12,586 INFO L475 AbstractCegarLoop]: Abstraction has 9119 states and 10953 transitions. [2019-09-08 11:47:12,586 INFO L476 AbstractCegarLoop]: Interpolant automaton has 41 states. [2019-09-08 11:47:12,586 INFO L276 IsEmpty]: Start isEmpty. Operand 9119 states and 10953 transitions. [2019-09-08 11:47:12,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-09-08 11:47:12,587 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:47:12,587 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:47:12,588 INFO L418 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:47:12,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:47:12,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1966694071, now seen corresponding path program 1 times [2019-09-08 11:47:12,588 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:47:12,588 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:47:12,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:47:12,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:47:12,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:47:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:47:12,940 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 13 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:47:12,940 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:47:12,940 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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 [2019-09-08 11:47:12,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:47:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:47:13,050 INFO L256 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 36 conjunts are in the unsatisfiable core [2019-09-08 11:47:13,052 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:47:13,596 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:47:14,110 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 15 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (17)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 11:47:14,125 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:47:14,126 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 20] total 36 [2019-09-08 11:47:14,126 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-09-08 11:47:14,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-09-08 11:47:14,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1157, Unknown=0, NotChecked=0, Total=1260 [2019-09-08 11:47:14,128 INFO L87 Difference]: Start difference. First operand 9119 states and 10953 transitions. Second operand 36 states. [2019-09-08 11:47:18,730 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2019-09-08 11:47:19,244 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2019-09-08 11:47:19,563 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2019-09-08 11:47:19,742 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2019-09-08 11:47:20,195 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2019-09-08 11:47:21,086 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2019-09-08 11:47:21,836 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-09-08 11:47:22,145 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2019-09-08 11:47:22,850 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2019-09-08 11:47:23,219 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2019-09-08 11:47:23,867 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-09-08 11:47:24,224 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 38 [2019-09-08 11:47:24,689 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 39 [2019-09-08 11:47:25,293 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 40 [2019-09-08 11:47:25,571 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38 [2019-09-08 11:47:26,052 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2019-09-08 11:47:26,275 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2019-09-08 11:47:26,656 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 37 [2019-09-08 11:47:26,846 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2019-09-08 11:47:27,061 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2019-09-08 11:47:27,302 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 45 [2019-09-08 11:47:27,749 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2019-09-08 11:47:27,961 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2019-09-08 11:47:28,309 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2019-09-08 11:47:28,607 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2019-09-08 11:47:28,832 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2019-09-08 11:47:29,211 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2019-09-08 11:47:29,369 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2019-09-08 11:47:29,737 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 42 [2019-09-08 11:47:30,051 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 39 [2019-09-08 11:47:30,485 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2019-09-08 11:47:30,869 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 40 [2019-09-08 11:47:31,341 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2019-09-08 11:47:31,612 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2019-09-08 11:47:32,073 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 45 [2019-09-08 11:47:32,347 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2019-09-08 11:47:32,701 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 38 [2019-09-08 11:47:33,086 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2019-09-08 11:47:33,424 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 54 [2019-09-08 11:47:33,979 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 39 [2019-09-08 11:47:34,172 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2019-09-08 11:47:34,345 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2019-09-08 11:47:34,566 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 41 [2019-09-08 11:47:34,789 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 46 [2019-09-08 11:47:35,089 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2019-09-08 11:47:35,436 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2019-09-08 11:47:35,663 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 46 [2019-09-08 11:47:35,968 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2019-09-08 11:47:36,326 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2019-09-08 11:47:36,522 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 40 [2019-09-08 11:47:36,709 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2019-09-08 11:47:37,020 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2019-09-08 11:47:37,379 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2019-09-08 11:47:37,571 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 39 [2019-09-08 11:47:37,862 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-09-08 11:47:38,358 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-09-08 11:47:38,637 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2019-09-08 11:47:39,076 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 41 [2019-09-08 11:47:39,367 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 39 [2019-09-08 11:47:45,201 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2019-09-08 11:47:46,064 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2019-09-08 11:47:46,736 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2019-09-08 11:47:46,916 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2019-09-08 11:47:47,857 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2019-09-08 11:47:48,229 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2019-09-08 11:47:49,119 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2019-09-08 11:47:56,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:47:56,281 INFO L93 Difference]: Finished difference Result 36241 states and 43224 transitions. [2019-09-08 11:47:56,281 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2019-09-08 11:47:56,282 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 112 [2019-09-08 11:47:56,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:47:56,307 INFO L225 Difference]: With dead ends: 36241 [2019-09-08 11:47:56,308 INFO L226 Difference]: Without dead ends: 28161 [2019-09-08 11:47:56,317 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 345 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 250 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24731 ImplicationChecksByTransitivity, 26.7s TimeCoverageRelationStatistics Valid=6996, Invalid=56256, Unknown=0, NotChecked=0, Total=63252 [2019-09-08 11:47:56,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28161 states. [2019-09-08 11:48:00,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28161 to 11857. [2019-09-08 11:48:00,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11857 states. [2019-09-08 11:48:00,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11857 states to 11857 states and 14199 transitions. [2019-09-08 11:48:00,581 INFO L78 Accepts]: Start accepts. Automaton has 11857 states and 14199 transitions. Word has length 112 [2019-09-08 11:48:00,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:48:00,581 INFO L475 AbstractCegarLoop]: Abstraction has 11857 states and 14199 transitions. [2019-09-08 11:48:00,581 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-09-08 11:48:00,581 INFO L276 IsEmpty]: Start isEmpty. Operand 11857 states and 14199 transitions. [2019-09-08 11:48:00,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-09-08 11:48:00,583 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:48:00,583 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:48:00,583 INFO L418 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:48:00,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:48:00,583 INFO L82 PathProgramCache]: Analyzing trace with hash -98883104, now seen corresponding path program 1 times [2019-09-08 11:48:00,583 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:48:00,583 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:48:00,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:48:00,585 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:48:00,585 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:48:00,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:48:01,157 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 19 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:48:01,158 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:48:01,158 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:48:01,194 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:48:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:48:01,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-08 11:48:01,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:48:01,612 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:48:01,731 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:48:01,947 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 21 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:48:01,951 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:48:01,951 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 25 [2019-09-08 11:48:01,952 INFO L454 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-09-08 11:48:01,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-09-08 11:48:01,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=533, Unknown=0, NotChecked=0, Total=600 [2019-09-08 11:48:01,953 INFO L87 Difference]: Start difference. First operand 11857 states and 14199 transitions. Second operand 25 states. [2019-09-08 11:48:02,192 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2019-09-08 11:48:02,765 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-08 11:48:03,271 WARN L188 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-09-08 11:48:03,574 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2019-09-08 11:48:03,951 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2019-09-08 11:48:04,347 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2019-09-08 11:48:04,737 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2019-09-08 11:48:05,246 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2019-09-08 11:48:05,539 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2019-09-08 11:48:06,199 WARN L188 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 96 [2019-09-08 11:48:06,561 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 85 [2019-09-08 11:48:06,993 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-08 11:48:07,323 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2019-09-08 11:48:07,931 WARN L188 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 94 [2019-09-08 11:48:08,309 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-08 11:48:08,612 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71