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-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 10:24:17,864 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 10:24:17,866 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 10:24:17,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 10:24:17,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 10:24:17,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 10:24:17,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 10:24:17,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 10:24:17,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 10:24:17,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 10:24:17,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 10:24:17,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 10:24:17,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 10:24:17,890 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 10:24:17,890 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 10:24:17,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 10:24:17,892 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 10:24:17,893 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 10:24:17,895 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 10:24:17,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 10:24:17,899 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 10:24:17,904 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 10:24:17,907 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 10:24:17,908 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 10:24:17,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-08 10:24:17,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-08 10:24:17,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-08 10:24:17,913 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-08 10:24:17,914 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-08 10:24:17,915 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-08 10:24:17,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 10:24:17,918 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 10:24:17,920 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 10:24:17,920 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 10:24:17,922 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 10:24:17,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 10:24:17,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 10:24:17,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 10:24:17,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 10:24:17,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 10:24:17,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 10:24:17,929 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 10:24:17,953 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 10:24:17,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 10:24:17,956 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 10:24:17,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 10:24:17,957 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 10:24:17,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 10:24:17,957 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 10:24:17,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 10:24:17,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 10:24:17,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 10:24:17,959 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 10:24:17,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 10:24:17,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 10:24:17,960 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 10:24:17,960 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 10:24:17,960 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 10:24:17,960 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 10:24:17,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 10:24:17,961 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 10:24:17,961 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 10:24:17,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 10:24:17,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 10:24:17,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 10:24:17,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 10:24:17,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 10:24:17,963 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 10:24:17,963 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 10:24:17,963 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 10:24:17,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 10:24:18,019 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 10:24:18,030 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 10:24:18,034 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 10:24:18,036 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 10:24:18,036 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 10:24:18,037 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2019-09-08 10:24:18,117 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6bb1cbc1/6162d28d63364648a41ad5c4ac8553e0/FLAGd31644880 [2019-09-08 10:24:18,603 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 10:24:18,603 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2019-09-08 10:24:18,612 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6bb1cbc1/6162d28d63364648a41ad5c4ac8553e0/FLAGd31644880 [2019-09-08 10:24:19,003 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c6bb1cbc1/6162d28d63364648a41ad5c4ac8553e0 [2019-09-08 10:24:19,014 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 10:24:19,015 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 10:24:19,016 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 10:24:19,016 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 10:24:19,020 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 10:24:19,021 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 10:24:19" (1/1) ... [2019-09-08 10:24:19,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51733a05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 10:24:19, skipping insertion in model container [2019-09-08 10:24:19,024 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 10:24:19" (1/1) ... [2019-09-08 10:24:19,030 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 10:24:19,080 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 10:24:19,279 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 10:24:19,292 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 10:24:19,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 10:24:19,456 INFO L192 MainTranslator]: Completed translation [2019-09-08 10:24:19,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 10:24:19 WrapperNode [2019-09-08 10:24:19,457 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 10:24:19,458 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 10:24:19,458 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 10:24:19,458 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 10:24:19,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 10:24:19" (1/1) ... [2019-09-08 10:24:19,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 10:24:19" (1/1) ... [2019-09-08 10:24:19,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 10:24:19" (1/1) ... [2019-09-08 10:24:19,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 10:24:19" (1/1) ... [2019-09-08 10:24:19,487 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 10:24:19" (1/1) ... [2019-09-08 10:24:19,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 10:24:19" (1/1) ... [2019-09-08 10:24:19,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 10:24:19" (1/1) ... [2019-09-08 10:24:19,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 10:24:19,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 10:24:19,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 10:24:19,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 10:24:19,503 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 10:24:19" (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 10:24:19,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 10:24:19,563 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 10:24:19,563 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 10:24:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 10:24:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-08 10:24:19,563 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-08 10:24:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-09-08 10:24:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-08 10:24:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 10:24:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-08 10:24:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-08 10:24:19,564 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-08 10:24:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-08 10:24:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-08 10:24:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-08 10:24:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-08 10:24:19,565 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 10:24:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 10:24:19,566 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 10:24:20,161 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 10:24:20,162 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 10:24:20,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 10:24:20 BoogieIcfgContainer [2019-09-08 10:24:20,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 10:24:20,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 10:24:20,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 10:24:20,167 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 10:24:20,168 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 10:24:19" (1/3) ... [2019-09-08 10:24:20,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@417faf33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 10:24:20, skipping insertion in model container [2019-09-08 10:24:20,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 10:24:19" (2/3) ... [2019-09-08 10:24:20,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@417faf33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 10:24:20, skipping insertion in model container [2019-09-08 10:24:20,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 10:24:20" (3/3) ... [2019-09-08 10:24:20,177 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.2.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2019-09-08 10:24:20,188 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 10:24:20,209 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 10:24:20,227 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 10:24:20,261 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 10:24:20,262 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 10:24:20,262 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 10:24:20,262 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 10:24:20,263 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 10:24:20,263 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 10:24:20,263 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 10:24:20,263 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 10:24:20,263 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 10:24:20,284 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2019-09-08 10:24:20,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-09-08 10:24:20,293 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:24:20,294 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 10:24:20,296 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:24:20,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:24:20,302 INFO L82 PathProgramCache]: Analyzing trace with hash -1555775493, now seen corresponding path program 1 times [2019-09-08 10:24:20,304 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:24:20,305 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:24:20,357 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:20,357 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:24:20,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:20,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:24:20,629 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 10:24:20,631 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 10:24:20,632 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 10:24:20,637 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 10:24:20,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 10:24:20,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 10:24:20,654 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 3 states. [2019-09-08 10:24:20,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:24:20,768 INFO L93 Difference]: Finished difference Result 197 states and 307 transitions. [2019-09-08 10:24:20,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 10:24:20,771 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2019-09-08 10:24:20,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:24:20,792 INFO L225 Difference]: With dead ends: 197 [2019-09-08 10:24:20,792 INFO L226 Difference]: Without dead ends: 126 [2019-09-08 10:24:20,801 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 10:24:20,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2019-09-08 10:24:20,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 124. [2019-09-08 10:24:20,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-09-08 10:24:20,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 182 transitions. [2019-09-08 10:24:20,902 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 182 transitions. Word has length 41 [2019-09-08 10:24:20,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:24:20,903 INFO L475 AbstractCegarLoop]: Abstraction has 124 states and 182 transitions. [2019-09-08 10:24:20,903 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 10:24:20,903 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 182 transitions. [2019-09-08 10:24:20,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-09-08 10:24:20,905 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:24:20,905 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 10:24:20,907 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:24:20,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:24:20,909 INFO L82 PathProgramCache]: Analyzing trace with hash 477079428, now seen corresponding path program 1 times [2019-09-08 10:24:20,909 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:24:20,909 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:24:20,917 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:20,918 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:24:20,918 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:20,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:24:21,068 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 10:24:21,068 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 10:24:21,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 10:24:21,070 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 10:24:21,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 10:24:21,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 10:24:21,072 INFO L87 Difference]: Start difference. First operand 124 states and 182 transitions. Second operand 3 states. [2019-09-08 10:24:21,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:24:21,144 INFO L93 Difference]: Finished difference Result 292 states and 446 transitions. [2019-09-08 10:24:21,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 10:24:21,145 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2019-09-08 10:24:21,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:24:21,148 INFO L225 Difference]: With dead ends: 292 [2019-09-08 10:24:21,148 INFO L226 Difference]: Without dead ends: 192 [2019-09-08 10:24:21,150 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 10:24:21,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2019-09-08 10:24:21,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 190. [2019-09-08 10:24:21,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2019-09-08 10:24:21,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 285 transitions. [2019-09-08 10:24:21,177 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 285 transitions. Word has length 42 [2019-09-08 10:24:21,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:24:21,178 INFO L475 AbstractCegarLoop]: Abstraction has 190 states and 285 transitions. [2019-09-08 10:24:21,178 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 10:24:21,178 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 285 transitions. [2019-09-08 10:24:21,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-09-08 10:24:21,180 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:24:21,180 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 10:24:21,181 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:24:21,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:24:21,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1738555772, now seen corresponding path program 1 times [2019-09-08 10:24:21,181 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:24:21,182 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:24:21,183 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:21,183 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:24:21,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:21,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:24:21,345 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 10:24:21,345 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 10:24:21,345 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 10:24:21,346 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 10:24:21,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 10:24:21,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 10:24:21,347 INFO L87 Difference]: Start difference. First operand 190 states and 285 transitions. Second operand 5 states. [2019-09-08 10:24:21,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:24:21,506 INFO L93 Difference]: Finished difference Result 854 states and 1329 transitions. [2019-09-08 10:24:21,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 10:24:21,507 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2019-09-08 10:24:21,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:24:21,513 INFO L225 Difference]: With dead ends: 854 [2019-09-08 10:24:21,513 INFO L226 Difference]: Without dead ends: 688 [2019-09-08 10:24:21,515 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 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 10:24:21,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2019-09-08 10:24:21,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 354. [2019-09-08 10:24:21,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 354 states. [2019-09-08 10:24:21,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 537 transitions. [2019-09-08 10:24:21,586 INFO L78 Accepts]: Start accepts. Automaton has 354 states and 537 transitions. Word has length 43 [2019-09-08 10:24:21,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:24:21,588 INFO L475 AbstractCegarLoop]: Abstraction has 354 states and 537 transitions. [2019-09-08 10:24:21,588 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 10:24:21,588 INFO L276 IsEmpty]: Start isEmpty. Operand 354 states and 537 transitions. [2019-09-08 10:24:21,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-09-08 10:24:21,592 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:24:21,592 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] [2019-09-08 10:24:21,595 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:24:21,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:24:21,595 INFO L82 PathProgramCache]: Analyzing trace with hash 1920813121, now seen corresponding path program 1 times [2019-09-08 10:24:21,596 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:24:21,596 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:24:21,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:21,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:24:21,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:21,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:24:21,730 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 10:24:21,731 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 10:24:21,731 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 10:24:21,732 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 10:24:21,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 10:24:21,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-08 10:24:21,732 INFO L87 Difference]: Start difference. First operand 354 states and 537 transitions. Second operand 5 states. [2019-09-08 10:24:21,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:24:21,864 INFO L93 Difference]: Finished difference Result 1232 states and 1892 transitions. [2019-09-08 10:24:21,864 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 10:24:21,864 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2019-09-08 10:24:21,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:24:21,873 INFO L225 Difference]: With dead ends: 1232 [2019-09-08 10:24:21,873 INFO L226 Difference]: Without dead ends: 902 [2019-09-08 10:24:21,877 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 10:24:21,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2019-09-08 10:24:21,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 898. [2019-09-08 10:24:21,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2019-09-08 10:24:21,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1369 transitions. [2019-09-08 10:24:21,957 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1369 transitions. Word has length 44 [2019-09-08 10:24:21,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:24:21,958 INFO L475 AbstractCegarLoop]: Abstraction has 898 states and 1369 transitions. [2019-09-08 10:24:21,958 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 10:24:21,958 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1369 transitions. [2019-09-08 10:24:21,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-08 10:24:21,965 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:24:21,966 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 10:24:21,966 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:24:21,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:24:21,966 INFO L82 PathProgramCache]: Analyzing trace with hash -1112409250, now seen corresponding path program 1 times [2019-09-08 10:24:21,966 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:24:21,967 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:24:21,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:21,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:24:21,971 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:21,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:24:22,029 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 10:24:22,030 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 10:24:22,030 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 10:24:22,030 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 10:24:22,031 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 10:24:22,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 10:24:22,031 INFO L87 Difference]: Start difference. First operand 898 states and 1369 transitions. Second operand 3 states. [2019-09-08 10:24:22,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:24:22,157 INFO L93 Difference]: Finished difference Result 2334 states and 3555 transitions. [2019-09-08 10:24:22,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 10:24:22,158 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2019-09-08 10:24:22,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:24:22,170 INFO L225 Difference]: With dead ends: 2334 [2019-09-08 10:24:22,170 INFO L226 Difference]: Without dead ends: 1460 [2019-09-08 10:24:22,173 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 10:24:22,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1460 states. [2019-09-08 10:24:22,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1460 to 1458. [2019-09-08 10:24:22,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1458 states. [2019-09-08 10:24:22,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 2185 transitions. [2019-09-08 10:24:22,284 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 2185 transitions. Word has length 46 [2019-09-08 10:24:22,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:24:22,285 INFO L475 AbstractCegarLoop]: Abstraction has 1458 states and 2185 transitions. [2019-09-08 10:24:22,285 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 10:24:22,285 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 2185 transitions. [2019-09-08 10:24:22,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-08 10:24:22,286 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:24:22,286 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 10:24:22,286 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:24:22,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:24:22,287 INFO L82 PathProgramCache]: Analyzing trace with hash 1926406488, now seen corresponding path program 1 times [2019-09-08 10:24:22,287 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:24:22,287 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:24:22,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:22,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:24:22,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:24:22,370 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 10:24:22,370 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 10:24:22,370 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 10:24:22,371 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 10:24:22,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 10:24:22,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-09-08 10:24:22,371 INFO L87 Difference]: Start difference. First operand 1458 states and 2185 transitions. Second operand 6 states. [2019-09-08 10:24:22,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:24:22,845 INFO L93 Difference]: Finished difference Result 5648 states and 8476 transitions. [2019-09-08 10:24:22,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 10:24:22,846 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 46 [2019-09-08 10:24:22,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:24:22,868 INFO L225 Difference]: With dead ends: 5648 [2019-09-08 10:24:22,868 INFO L226 Difference]: Without dead ends: 4214 [2019-09-08 10:24:22,872 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2019-09-08 10:24:22,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4214 states. [2019-09-08 10:24:23,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4214 to 4210. [2019-09-08 10:24:23,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4210 states. [2019-09-08 10:24:23,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4210 states to 4210 states and 6281 transitions. [2019-09-08 10:24:23,148 INFO L78 Accepts]: Start accepts. Automaton has 4210 states and 6281 transitions. Word has length 46 [2019-09-08 10:24:23,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:24:23,149 INFO L475 AbstractCegarLoop]: Abstraction has 4210 states and 6281 transitions. [2019-09-08 10:24:23,149 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 10:24:23,149 INFO L276 IsEmpty]: Start isEmpty. Operand 4210 states and 6281 transitions. [2019-09-08 10:24:23,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-08 10:24:23,150 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:24:23,150 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 10:24:23,150 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:24:23,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:24:23,151 INFO L82 PathProgramCache]: Analyzing trace with hash -742396141, now seen corresponding path program 1 times [2019-09-08 10:24:23,151 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:24:23,151 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:24:23,152 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:23,153 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:24:23,153 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:24:23,229 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 10:24:23,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 10:24:23,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 10:24:23,233 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 10:24:23,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 10:24:23,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 10:24:23,234 INFO L87 Difference]: Start difference. First operand 4210 states and 6281 transitions. Second operand 5 states. [2019-09-08 10:24:23,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:24:23,829 INFO L93 Difference]: Finished difference Result 8684 states and 12826 transitions. [2019-09-08 10:24:23,830 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 10:24:23,831 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2019-09-08 10:24:23,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:24:23,882 INFO L225 Difference]: With dead ends: 8684 [2019-09-08 10:24:23,883 INFO L226 Difference]: Without dead ends: 8682 [2019-09-08 10:24:23,888 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 10:24:23,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8682 states. [2019-09-08 10:24:24,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8682 to 4498. [2019-09-08 10:24:24,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4498 states. [2019-09-08 10:24:24,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4498 states to 4498 states and 6569 transitions. [2019-09-08 10:24:24,434 INFO L78 Accepts]: Start accepts. Automaton has 4498 states and 6569 transitions. Word has length 46 [2019-09-08 10:24:24,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:24:24,434 INFO L475 AbstractCegarLoop]: Abstraction has 4498 states and 6569 transitions. [2019-09-08 10:24:24,434 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 10:24:24,434 INFO L276 IsEmpty]: Start isEmpty. Operand 4498 states and 6569 transitions. [2019-09-08 10:24:24,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-08 10:24:24,435 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:24:24,435 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, 1] [2019-09-08 10:24:24,436 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:24:24,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:24:24,436 INFO L82 PathProgramCache]: Analyzing trace with hash -1529824191, now seen corresponding path program 1 times [2019-09-08 10:24:24,436 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:24:24,436 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:24:24,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:24,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:24:24,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:24,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:24:24,516 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 10:24:24,517 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 10:24:24,517 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 10:24:24,518 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 10:24:24,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 10:24:24,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 10:24:24,518 INFO L87 Difference]: Start difference. First operand 4498 states and 6569 transitions. Second operand 3 states. [2019-09-08 10:24:24,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:24:24,961 INFO L93 Difference]: Finished difference Result 10814 states and 15783 transitions. [2019-09-08 10:24:24,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 10:24:24,961 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-08 10:24:24,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:24:24,996 INFO L225 Difference]: With dead ends: 10814 [2019-09-08 10:24:24,996 INFO L226 Difference]: Without dead ends: 6340 [2019-09-08 10:24:25,006 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 10:24:25,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6340 states. [2019-09-08 10:24:25,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6340 to 6278. [2019-09-08 10:24:25,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6278 states. [2019-09-08 10:24:25,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6278 states to 6278 states and 9057 transitions. [2019-09-08 10:24:25,462 INFO L78 Accepts]: Start accepts. Automaton has 6278 states and 9057 transitions. Word has length 47 [2019-09-08 10:24:25,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:24:25,464 INFO L475 AbstractCegarLoop]: Abstraction has 6278 states and 9057 transitions. [2019-09-08 10:24:25,464 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 10:24:25,464 INFO L276 IsEmpty]: Start isEmpty. Operand 6278 states and 9057 transitions. [2019-09-08 10:24:25,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-08 10:24:25,467 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:24:25,468 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 10:24:25,468 INFO L418 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:24:25,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:24:25,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1418257868, now seen corresponding path program 1 times [2019-09-08 10:24:25,469 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:24:25,469 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:24:25,470 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:25,471 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:24:25,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:24:25,633 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 10:24:25,634 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 10:24:25,634 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) [2019-09-08 10:24:25,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 10:24:25,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:24:25,749 INFO L256 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 10:24:25,759 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 10:24:25,875 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 10:24:25,881 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 10:24:25,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2019-09-08 10:24:25,883 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-08 10:24:25,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-08 10:24:25,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-09-08 10:24:25,885 INFO L87 Difference]: Start difference. First operand 6278 states and 9057 transitions. Second operand 11 states. [2019-09-08 10:24:27,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:24:27,836 INFO L93 Difference]: Finished difference Result 20769 states and 29803 transitions. [2019-09-08 10:24:27,837 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 10:24:27,837 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 65 [2019-09-08 10:24:27,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:24:27,898 INFO L225 Difference]: With dead ends: 20769 [2019-09-08 10:24:27,899 INFO L226 Difference]: Without dead ends: 16623 [2019-09-08 10:24:27,916 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2019-09-08 10:24:27,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16623 states. [2019-09-08 10:24:28,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16623 to 8858. [2019-09-08 10:24:28,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8858 states. [2019-09-08 10:24:28,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8858 states to 8858 states and 12721 transitions. [2019-09-08 10:24:28,824 INFO L78 Accepts]: Start accepts. Automaton has 8858 states and 12721 transitions. Word has length 65 [2019-09-08 10:24:28,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:24:28,824 INFO L475 AbstractCegarLoop]: Abstraction has 8858 states and 12721 transitions. [2019-09-08 10:24:28,824 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-08 10:24:28,824 INFO L276 IsEmpty]: Start isEmpty. Operand 8858 states and 12721 transitions. [2019-09-08 10:24:28,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-08 10:24:28,827 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:24:28,828 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 10:24:28,828 INFO L418 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:24:28,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:24:28,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1905093699, now seen corresponding path program 1 times [2019-09-08 10:24:28,828 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:24:28,829 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:24:28,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:28,831 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:24:28,831 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:28,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:24:28,909 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 10:24:28,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 10:24:28,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 10:24:28,910 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 10:24:28,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 10:24:28,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 10:24:28,912 INFO L87 Difference]: Start difference. First operand 8858 states and 12721 transitions. Second operand 3 states. [2019-09-08 10:24:29,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:24:29,541 INFO L93 Difference]: Finished difference Result 14166 states and 20229 transitions. [2019-09-08 10:24:29,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 10:24:29,541 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 65 [2019-09-08 10:24:29,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:24:29,563 INFO L225 Difference]: With dead ends: 14166 [2019-09-08 10:24:29,564 INFO L226 Difference]: Without dead ends: 9283 [2019-09-08 10:24:29,576 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 10:24:29,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9283 states. [2019-09-08 10:24:30,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9283 to 7819. [2019-09-08 10:24:30,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7819 states. [2019-09-08 10:24:30,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7819 states to 7819 states and 11025 transitions. [2019-09-08 10:24:30,263 INFO L78 Accepts]: Start accepts. Automaton has 7819 states and 11025 transitions. Word has length 65 [2019-09-08 10:24:30,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:24:30,263 INFO L475 AbstractCegarLoop]: Abstraction has 7819 states and 11025 transitions. [2019-09-08 10:24:30,263 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 10:24:30,264 INFO L276 IsEmpty]: Start isEmpty. Operand 7819 states and 11025 transitions. [2019-09-08 10:24:30,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-08 10:24:30,269 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:24:30,269 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 10:24:30,270 INFO L418 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:24:30,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:24:30,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1174779130, now seen corresponding path program 1 times [2019-09-08 10:24:30,271 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:24:30,271 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:24:30,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:30,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:24:30,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:30,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:24:30,391 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-08 10:24:30,392 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 10:24:30,392 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 10:24:30,392 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 10:24:30,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 10:24:30,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-09-08 10:24:30,394 INFO L87 Difference]: Start difference. First operand 7819 states and 11025 transitions. Second operand 6 states. [2019-09-08 10:24:32,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:24:32,023 INFO L93 Difference]: Finished difference Result 27122 states and 38148 transitions. [2019-09-08 10:24:32,023 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 10:24:32,024 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 65 [2019-09-08 10:24:32,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:24:32,067 INFO L225 Difference]: With dead ends: 27122 [2019-09-08 10:24:32,067 INFO L226 Difference]: Without dead ends: 19367 [2019-09-08 10:24:32,087 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2019-09-08 10:24:32,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19367 states. [2019-09-08 10:24:33,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19367 to 19141. [2019-09-08 10:24:33,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19141 states. [2019-09-08 10:24:33,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19141 states to 19141 states and 26839 transitions. [2019-09-08 10:24:33,231 INFO L78 Accepts]: Start accepts. Automaton has 19141 states and 26839 transitions. Word has length 65 [2019-09-08 10:24:33,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:24:33,231 INFO L475 AbstractCegarLoop]: Abstraction has 19141 states and 26839 transitions. [2019-09-08 10:24:33,231 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 10:24:33,232 INFO L276 IsEmpty]: Start isEmpty. Operand 19141 states and 26839 transitions. [2019-09-08 10:24:33,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-08 10:24:33,235 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:24:33,235 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 10:24:33,235 INFO L418 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:24:33,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:24:33,236 INFO L82 PathProgramCache]: Analyzing trace with hash 442725761, now seen corresponding path program 1 times [2019-09-08 10:24:33,236 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:24:33,236 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:24:33,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:33,237 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:24:33,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:33,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:24:33,313 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 10:24:33,313 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 10:24:33,314 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) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 10:24:33,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:24:33,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:24:33,420 INFO L256 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 10:24:33,425 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 10:24:33,523 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 10:24:33,536 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 10:24:33,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2019-09-08 10:24:33,537 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-08 10:24:33,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-08 10:24:33,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-09-08 10:24:33,538 INFO L87 Difference]: Start difference. First operand 19141 states and 26839 transitions. Second operand 11 states. [2019-09-08 10:24:36,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:24:36,254 INFO L93 Difference]: Finished difference Result 44178 states and 61683 transitions. [2019-09-08 10:24:36,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 10:24:36,254 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 65 [2019-09-08 10:24:36,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:24:36,338 INFO L225 Difference]: With dead ends: 44178 [2019-09-08 10:24:36,338 INFO L226 Difference]: Without dead ends: 37016 [2019-09-08 10:24:36,363 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2019-09-08 10:24:36,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37016 states. [2019-09-08 10:24:38,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37016 to 21929. [2019-09-08 10:24:38,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21929 states. [2019-09-08 10:24:38,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21929 states to 21929 states and 30680 transitions. [2019-09-08 10:24:38,395 INFO L78 Accepts]: Start accepts. Automaton has 21929 states and 30680 transitions. Word has length 65 [2019-09-08 10:24:38,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:24:38,395 INFO L475 AbstractCegarLoop]: Abstraction has 21929 states and 30680 transitions. [2019-09-08 10:24:38,395 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-08 10:24:38,395 INFO L276 IsEmpty]: Start isEmpty. Operand 21929 states and 30680 transitions. [2019-09-08 10:24:38,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-08 10:24:38,400 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:24:38,400 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 10:24:38,401 INFO L418 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:24:38,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:24:38,401 INFO L82 PathProgramCache]: Analyzing trace with hash 1883912516, now seen corresponding path program 1 times [2019-09-08 10:24:38,401 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:24:38,401 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:24:38,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:38,403 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:24:38,403 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:24:38,461 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 10:24:38,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 10:24:38,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 10:24:38,462 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 10:24:38,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 10:24:38,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 10:24:38,463 INFO L87 Difference]: Start difference. First operand 21929 states and 30680 transitions. Second operand 3 states. [2019-09-08 10:24:40,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:24:40,056 INFO L93 Difference]: Finished difference Result 40493 states and 56467 transitions. [2019-09-08 10:24:40,057 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 10:24:40,058 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2019-09-08 10:24:40,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:24:40,109 INFO L225 Difference]: With dead ends: 40493 [2019-09-08 10:24:40,109 INFO L226 Difference]: Without dead ends: 23990 [2019-09-08 10:24:40,145 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 10:24:40,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23990 states. [2019-09-08 10:24:41,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23990 to 23971. [2019-09-08 10:24:41,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23971 states. [2019-09-08 10:24:41,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23971 states to 23971 states and 32860 transitions. [2019-09-08 10:24:41,680 INFO L78 Accepts]: Start accepts. Automaton has 23971 states and 32860 transitions. Word has length 66 [2019-09-08 10:24:41,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:24:41,680 INFO L475 AbstractCegarLoop]: Abstraction has 23971 states and 32860 transitions. [2019-09-08 10:24:41,680 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 10:24:41,680 INFO L276 IsEmpty]: Start isEmpty. Operand 23971 states and 32860 transitions. [2019-09-08 10:24:41,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-08 10:24:41,685 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:24:41,685 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, 1] [2019-09-08 10:24:41,685 INFO L418 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:24:41,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:24:41,686 INFO L82 PathProgramCache]: Analyzing trace with hash -2075170094, now seen corresponding path program 1 times [2019-09-08 10:24:41,686 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:24:41,686 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:24:41,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:41,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:24:41,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:24:41,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:24:41,920 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 10:24:41,921 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 10:24:41,921 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 10:24:41,941 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 10:24:42,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:24:42,046 INFO L256 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-08 10:24:42,053 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 10:24:42,193 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 10:24:42,199 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 10:24:42,200 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4] total 12 [2019-09-08 10:24:42,200 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-08 10:24:42,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-08 10:24:42,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2019-09-08 10:24:42,202 INFO L87 Difference]: Start difference. First operand 23971 states and 32860 transitions. Second operand 12 states. [2019-09-08 10:25:06,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:25:06,384 INFO L93 Difference]: Finished difference Result 229685 states and 313446 transitions. [2019-09-08 10:25:06,384 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2019-09-08 10:25:06,384 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 66 [2019-09-08 10:25:06,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:25:06,722 INFO L225 Difference]: With dead ends: 229685 [2019-09-08 10:25:06,722 INFO L226 Difference]: Without dead ends: 206544 [2019-09-08 10:25:06,824 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7260 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=2413, Invalid=14617, Unknown=0, NotChecked=0, Total=17030 [2019-09-08 10:25:07,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206544 states. [2019-09-08 10:25:16,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206544 to 94939. [2019-09-08 10:25:16,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94939 states. [2019-09-08 10:25:16,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94939 states to 94939 states and 128597 transitions. [2019-09-08 10:25:16,946 INFO L78 Accepts]: Start accepts. Automaton has 94939 states and 128597 transitions. Word has length 66 [2019-09-08 10:25:16,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:25:16,946 INFO L475 AbstractCegarLoop]: Abstraction has 94939 states and 128597 transitions. [2019-09-08 10:25:16,946 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-08 10:25:16,947 INFO L276 IsEmpty]: Start isEmpty. Operand 94939 states and 128597 transitions. [2019-09-08 10:25:16,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-08 10:25:16,953 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:25:16,953 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 10:25:16,953 INFO L418 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:25:16,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:25:16,954 INFO L82 PathProgramCache]: Analyzing trace with hash -2028493329, now seen corresponding path program 1 times [2019-09-08 10:25:16,954 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:25:16,954 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:25:16,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:25:16,955 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:25:16,955 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:25:16,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:25:17,025 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-08 10:25:17,026 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 10:25:17,026 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 10:25:17,026 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 10:25:17,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 10:25:17,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-08 10:25:17,027 INFO L87 Difference]: Start difference. First operand 94939 states and 128597 transitions. Second operand 5 states. [2019-09-08 10:25:25,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:25:25,766 INFO L93 Difference]: Finished difference Result 156743 states and 214122 transitions. [2019-09-08 10:25:25,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 10:25:25,766 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2019-09-08 10:25:25,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:25:25,932 INFO L225 Difference]: With dead ends: 156743 [2019-09-08 10:25:25,933 INFO L226 Difference]: Without dead ends: 127474 [2019-09-08 10:25:25,982 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 10:25:26,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127474 states. [2019-09-08 10:25:35,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127474 to 110083. [2019-09-08 10:25:35,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110083 states. [2019-09-08 10:25:36,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110083 states to 110083 states and 148817 transitions. [2019-09-08 10:25:36,137 INFO L78 Accepts]: Start accepts. Automaton has 110083 states and 148817 transitions. Word has length 67 [2019-09-08 10:25:36,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:25:36,137 INFO L475 AbstractCegarLoop]: Abstraction has 110083 states and 148817 transitions. [2019-09-08 10:25:36,137 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 10:25:36,137 INFO L276 IsEmpty]: Start isEmpty. Operand 110083 states and 148817 transitions. [2019-09-08 10:25:36,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-08 10:25:36,144 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:25:36,144 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 10:25:36,145 INFO L418 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:25:36,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:25:36,145 INFO L82 PathProgramCache]: Analyzing trace with hash 464290294, now seen corresponding path program 1 times [2019-09-08 10:25:36,145 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:25:36,145 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:25:36,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:25:36,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:25:36,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:25:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:25:36,462 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 10:25:36,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 10:25:36,463 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 10:25:36,464 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 10:25:36,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 10:25:36,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 10:25:36,465 INFO L87 Difference]: Start difference. First operand 110083 states and 148817 transitions. Second operand 3 states. [2019-09-08 10:25:44,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:25:44,036 INFO L93 Difference]: Finished difference Result 168525 states and 228337 transitions. [2019-09-08 10:25:44,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 10:25:44,041 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2019-09-08 10:25:44,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:25:44,185 INFO L225 Difference]: With dead ends: 168525 [2019-09-08 10:25:44,185 INFO L226 Difference]: Without dead ends: 106691 [2019-09-08 10:25:44,254 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 10:25:44,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106691 states. [2019-09-08 10:25:54,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106691 to 106672. [2019-09-08 10:25:54,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106672 states. [2019-09-08 10:25:54,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106672 states to 106672 states and 142926 transitions. [2019-09-08 10:25:54,905 INFO L78 Accepts]: Start accepts. Automaton has 106672 states and 142926 transitions. Word has length 67 [2019-09-08 10:25:54,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:25:54,905 INFO L475 AbstractCegarLoop]: Abstraction has 106672 states and 142926 transitions. [2019-09-08 10:25:54,905 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 10:25:54,905 INFO L276 IsEmpty]: Start isEmpty. Operand 106672 states and 142926 transitions. [2019-09-08 10:25:54,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-08 10:25:54,911 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:25:54,911 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, 1] [2019-09-08 10:25:54,911 INFO L418 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:25:54,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:25:54,911 INFO L82 PathProgramCache]: Analyzing trace with hash -1527473086, now seen corresponding path program 1 times [2019-09-08 10:25:54,912 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:25:54,912 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:25:54,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:25:54,913 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:25:54,913 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:25:54,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:25:54,969 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-08 10:25:54,970 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 10:25:54,970 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 10:25:54,970 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 10:25:54,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 10:25:54,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 10:25:54,971 INFO L87 Difference]: Start difference. First operand 106672 states and 142926 transitions. Second operand 5 states. [2019-09-08 10:26:05,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:26:05,041 INFO L93 Difference]: Finished difference Result 207795 states and 278817 transitions. [2019-09-08 10:26:05,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 10:26:05,042 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2019-09-08 10:26:05,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:26:05,194 INFO L225 Difference]: With dead ends: 207795 [2019-09-08 10:26:05,194 INFO L226 Difference]: Without dead ends: 127638 [2019-09-08 10:26:05,256 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 10:26:05,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127638 states. [2019-09-08 10:26:17,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127638 to 106672. [2019-09-08 10:26:17,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106672 states. [2019-09-08 10:26:17,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106672 states to 106672 states and 141065 transitions. [2019-09-08 10:26:17,366 INFO L78 Accepts]: Start accepts. Automaton has 106672 states and 141065 transitions. Word has length 68 [2019-09-08 10:26:17,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:26:17,367 INFO L475 AbstractCegarLoop]: Abstraction has 106672 states and 141065 transitions. [2019-09-08 10:26:17,367 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 10:26:17,367 INFO L276 IsEmpty]: Start isEmpty. Operand 106672 states and 141065 transitions. [2019-09-08 10:26:17,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-08 10:26:17,371 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:26:17,372 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, 1] [2019-09-08 10:26:17,372 INFO L418 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:26:17,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:26:17,372 INFO L82 PathProgramCache]: Analyzing trace with hash -941431235, now seen corresponding path program 1 times [2019-09-08 10:26:17,372 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:26:17,372 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:26:17,373 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:26:17,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:26:17,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:26:17,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:26:17,454 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 10:26:17,455 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 10:26:17,455 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 10:26:17,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:26:17,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:26:17,548 INFO L256 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 10:26:17,560 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 10:26:17,634 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 10:26:17,643 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 10:26:17,644 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2019-09-08 10:26:17,644 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-08 10:26:17,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-08 10:26:17,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2019-09-08 10:26:17,645 INFO L87 Difference]: Start difference. First operand 106672 states and 141065 transitions. Second operand 11 states. [2019-09-08 10:26:30,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:26:30,019 INFO L93 Difference]: Finished difference Result 202837 states and 267632 transitions. [2019-09-08 10:26:30,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 10:26:30,020 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 68 [2019-09-08 10:26:30,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:26:30,202 INFO L225 Difference]: With dead ends: 202837 [2019-09-08 10:26:30,202 INFO L226 Difference]: Without dead ends: 143132 [2019-09-08 10:26:30,262 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2019-09-08 10:26:30,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143132 states. [2019-09-08 10:26:40,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143132 to 107460. [2019-09-08 10:26:40,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107460 states. [2019-09-08 10:26:40,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107460 states to 107460 states and 141077 transitions. [2019-09-08 10:26:40,363 INFO L78 Accepts]: Start accepts. Automaton has 107460 states and 141077 transitions. Word has length 68 [2019-09-08 10:26:40,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:26:40,363 INFO L475 AbstractCegarLoop]: Abstraction has 107460 states and 141077 transitions. [2019-09-08 10:26:40,363 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-08 10:26:40,364 INFO L276 IsEmpty]: Start isEmpty. Operand 107460 states and 141077 transitions. [2019-09-08 10:26:40,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-08 10:26:40,368 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:26:40,368 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, 1] [2019-09-08 10:26:40,368 INFO L418 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:26:40,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:26:40,368 INFO L82 PathProgramCache]: Analyzing trace with hash 1875085212, now seen corresponding path program 1 times [2019-09-08 10:26:40,369 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:26:40,369 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:26:40,369 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:26:40,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:26:40,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:26:40,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:26:40,417 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 10:26:40,417 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 10:26:40,417 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 10:26:40,418 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 10:26:40,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 10:26:40,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 10:26:40,418 INFO L87 Difference]: Start difference. First operand 107460 states and 141077 transitions. Second operand 3 states. [2019-09-08 10:26:51,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:26:51,673 INFO L93 Difference]: Finished difference Result 193155 states and 253520 transitions. [2019-09-08 10:26:51,673 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 10:26:51,674 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-09-08 10:26:51,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:26:51,813 INFO L225 Difference]: With dead ends: 193155 [2019-09-08 10:26:51,813 INFO L226 Difference]: Without dead ends: 109870 [2019-09-08 10:26:51,877 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 10:26:51,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109870 states. [2019-09-08 10:26:58,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109870 to 62932. [2019-09-08 10:26:58,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62932 states. [2019-09-08 10:26:58,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62932 states to 62932 states and 81201 transitions. [2019-09-08 10:26:58,645 INFO L78 Accepts]: Start accepts. Automaton has 62932 states and 81201 transitions. Word has length 68 [2019-09-08 10:26:58,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:26:58,646 INFO L475 AbstractCegarLoop]: Abstraction has 62932 states and 81201 transitions. [2019-09-08 10:26:58,646 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 10:26:58,646 INFO L276 IsEmpty]: Start isEmpty. Operand 62932 states and 81201 transitions. [2019-09-08 10:26:58,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-08 10:26:58,651 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:26:58,651 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, 1, 1, 1] [2019-09-08 10:26:58,651 INFO L418 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:26:58,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:26:58,652 INFO L82 PathProgramCache]: Analyzing trace with hash 631708975, now seen corresponding path program 1 times [2019-09-08 10:26:58,652 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:26:58,652 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:26:58,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:26:58,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:26:58,653 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:26:58,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:26:58,710 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 10:26:58,711 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 10:26:58,711 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 10:26:58,711 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 10:26:58,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 10:26:58,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-08 10:26:58,712 INFO L87 Difference]: Start difference. First operand 62932 states and 81201 transitions. Second operand 5 states. [2019-09-08 10:27:06,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:27:06,906 INFO L93 Difference]: Finished difference Result 95286 states and 124439 transitions. [2019-09-08 10:27:06,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 10:27:06,907 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2019-09-08 10:27:06,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:27:06,995 INFO L225 Difference]: With dead ends: 95286 [2019-09-08 10:27:06,995 INFO L226 Difference]: Without dead ends: 81463 [2019-09-08 10:27:07,017 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 10:27:07,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81463 states. [2019-09-08 10:27:16,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81463 to 74394. [2019-09-08 10:27:16,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74394 states. [2019-09-08 10:27:16,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74394 states to 74394 states and 95908 transitions. [2019-09-08 10:27:16,416 INFO L78 Accepts]: Start accepts. Automaton has 74394 states and 95908 transitions. Word has length 70 [2019-09-08 10:27:16,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:27:16,416 INFO L475 AbstractCegarLoop]: Abstraction has 74394 states and 95908 transitions. [2019-09-08 10:27:16,416 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 10:27:16,416 INFO L276 IsEmpty]: Start isEmpty. Operand 74394 states and 95908 transitions. [2019-09-08 10:27:16,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-09-08 10:27:16,421 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:27:16,421 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, 1, 1, 1, 1] [2019-09-08 10:27:16,421 INFO L418 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:27:16,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:27:16,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1917277063, now seen corresponding path program 1 times [2019-09-08 10:27:16,422 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:27:16,422 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:27:16,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:27:16,423 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:27:16,423 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:27:16,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:27:16,462 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 10:27:16,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 10:27:16,463 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 10:27:16,463 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 10:27:16,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 10:27:16,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 10:27:16,464 INFO L87 Difference]: Start difference. First operand 74394 states and 95908 transitions. Second operand 3 states. [2019-09-08 10:27:23,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:27:23,990 INFO L93 Difference]: Finished difference Result 142372 states and 183676 transitions. [2019-09-08 10:27:23,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 10:27:23,990 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2019-09-08 10:27:23,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:27:24,062 INFO L225 Difference]: With dead ends: 142372 [2019-09-08 10:27:24,062 INFO L226 Difference]: Without dead ends: 68038 [2019-09-08 10:27:24,110 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 10:27:24,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68038 states. [2019-09-08 10:27:31,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68038 to 66966. [2019-09-08 10:27:31,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66966 states. [2019-09-08 10:27:31,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66966 states to 66966 states and 85623 transitions. [2019-09-08 10:27:31,261 INFO L78 Accepts]: Start accepts. Automaton has 66966 states and 85623 transitions. Word has length 71 [2019-09-08 10:27:31,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:27:31,262 INFO L475 AbstractCegarLoop]: Abstraction has 66966 states and 85623 transitions. [2019-09-08 10:27:31,262 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 10:27:31,262 INFO L276 IsEmpty]: Start isEmpty. Operand 66966 states and 85623 transitions. [2019-09-08 10:27:31,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-09-08 10:27:31,265 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:27:31,266 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, 1, 1, 1, 1] [2019-09-08 10:27:31,266 INFO L418 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:27:31,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:27:31,266 INFO L82 PathProgramCache]: Analyzing trace with hash -168256361, now seen corresponding path program 1 times [2019-09-08 10:27:31,267 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:27:31,267 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:27:31,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:27:31,268 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:27:31,268 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:27:31,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:27:31,323 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 10:27:31,323 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 10:27:31,324 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 10:27:31,324 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 10:27:31,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 10:27:31,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-08 10:27:31,325 INFO L87 Difference]: Start difference. First operand 66966 states and 85623 transitions. Second operand 5 states. [2019-09-08 10:27:41,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:27:41,934 INFO L93 Difference]: Finished difference Result 100322 states and 129687 transitions. [2019-09-08 10:27:41,934 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 10:27:41,934 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 71 [2019-09-08 10:27:41,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:27:42,024 INFO L225 Difference]: With dead ends: 100322 [2019-09-08 10:27:42,024 INFO L226 Difference]: Without dead ends: 85792 [2019-09-08 10:27:42,045 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-09-08 10:27:42,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85792 states. [2019-09-08 10:27:49,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85792 to 79264. [2019-09-08 10:27:49,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79264 states. [2019-09-08 10:27:49,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79264 states to 79264 states and 101333 transitions. [2019-09-08 10:27:49,989 INFO L78 Accepts]: Start accepts. Automaton has 79264 states and 101333 transitions. Word has length 71 [2019-09-08 10:27:49,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:27:49,989 INFO L475 AbstractCegarLoop]: Abstraction has 79264 states and 101333 transitions. [2019-09-08 10:27:49,989 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 10:27:49,989 INFO L276 IsEmpty]: Start isEmpty. Operand 79264 states and 101333 transitions. [2019-09-08 10:27:49,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-09-08 10:27:49,994 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:27:49,994 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 10:27:49,994 INFO L418 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:27:49,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:27:49,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1264889280, now seen corresponding path program 1 times [2019-09-08 10:27:49,995 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:27:49,995 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:27:49,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:27:49,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:27:49,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:27:50,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:27:50,164 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 10:27:50,164 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 10:27:50,165 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 10:27:50,179 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 10:27:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:27:50,250 INFO L256 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-08 10:27:50,254 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 10:27:50,365 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 10:27:50,552 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 10:27:50,555 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 10:27:50,555 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2019-09-08 10:27:50,556 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-08 10:27:50,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-08 10:27:50,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2019-09-08 10:27:50,556 INFO L87 Difference]: Start difference. First operand 79264 states and 101333 transitions. Second operand 17 states. [2019-09-08 10:28:36,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:28:36,467 INFO L93 Difference]: Finished difference Result 396607 states and 503533 transitions. [2019-09-08 10:28:36,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-09-08 10:28:36,467 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 75 [2019-09-08 10:28:36,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:28:36,865 INFO L225 Difference]: With dead ends: 396607 [2019-09-08 10:28:36,865 INFO L226 Difference]: Without dead ends: 328662 [2019-09-08 10:28:36,952 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 68 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 703 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=716, Invalid=2146, Unknown=0, NotChecked=0, Total=2862 [2019-09-08 10:28:37,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328662 states. [2019-09-08 10:29:02,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328662 to 161057. [2019-09-08 10:29:02,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 161057 states. [2019-09-08 10:29:02,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161057 states to 161057 states and 205880 transitions. [2019-09-08 10:29:02,459 INFO L78 Accepts]: Start accepts. Automaton has 161057 states and 205880 transitions. Word has length 75 [2019-09-08 10:29:02,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:29:02,459 INFO L475 AbstractCegarLoop]: Abstraction has 161057 states and 205880 transitions. [2019-09-08 10:29:02,460 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-08 10:29:02,460 INFO L276 IsEmpty]: Start isEmpty. Operand 161057 states and 205880 transitions. [2019-09-08 10:29:02,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-09-08 10:29:02,466 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:29:02,466 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 10:29:02,466 INFO L418 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:29:02,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:29:02,466 INFO L82 PathProgramCache]: Analyzing trace with hash -904511359, now seen corresponding path program 1 times [2019-09-08 10:29:02,466 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:29:02,466 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:29:02,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:29:02,467 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:29:02,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:29:02,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:29:02,656 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 10:29:02,657 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 10:29:02,657 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 10:29:02,671 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:29:02,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:29:02,738 INFO L256 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-08 10:29:02,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 10:29:02,861 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 10:29:03,741 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 10:29:03,745 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 10:29:03,745 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2019-09-08 10:29:03,746 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-08 10:29:03,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-08 10:29:03,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=297, Unknown=0, NotChecked=0, Total=342 [2019-09-08 10:29:03,747 INFO L87 Difference]: Start difference. First operand 161057 states and 205880 transitions. Second operand 19 states. [2019-09-08 10:29:04,571 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2019-09-08 10:29:05,279 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2019-09-08 10:29:05,461 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-09-08 10:29:05,837 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-09-08 10:29:06,007 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-08 10:29:06,239 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 10:29:06,813 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 10:29:06,972 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-08 10:29:07,363 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 10:29:07,595 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-08 10:29:08,068 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-08 10:29:08,238 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-08 10:29:08,393 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2019-09-08 10:29:08,644 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-08 10:29:08,889 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-08 10:29:09,083 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-09-08 10:29:09,330 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-08 10:29:09,565 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-08 10:29:10,171 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-08 10:29:10,339 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-08 10:29:10,805 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-08 10:29:11,046 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 10:29:11,417 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-09-08 10:29:11,586 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-08 10:29:11,788 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 10:29:12,736 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-08 10:29:13,573 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-08 10:29:13,731 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-08 10:29:14,375 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-08 10:29:14,569 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-09-08 10:29:14,965 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-08 10:29:15,210 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-08 10:29:15,432 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2019-09-08 10:29:15,872 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2019-09-08 10:29:16,078 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-08 10:29:16,447 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-08 10:29:16,694 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-08 10:29:16,907 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-08 10:29:17,141 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-08 10:29:17,366 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-08 10:29:17,705 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-08 10:29:18,029 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2019-09-08 10:29:18,325 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-09-08 10:29:18,554 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-08 10:29:18,896 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-08 10:29:19,039 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-08 10:29:19,191 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-08 10:29:19,357 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-08 10:29:19,621 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2019-09-08 10:29:19,851 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-08 10:29:20,102 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-08 10:29:20,594 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2019-09-08 10:29:20,845 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-09-08 10:29:21,050 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-09-08 10:29:21,427 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-08 10:29:21,694 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 10:29:21,960 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 10:29:22,283 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-08 10:29:22,417 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-08 10:29:22,649 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-09-08 10:29:22,978 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-08 10:29:23,221 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 10:29:23,417 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 10:29:23,691 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-08 10:29:23,972 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-08 10:29:24,193 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-08 10:29:24,455 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-08 10:29:24,789 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-08 10:29:25,116 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-08 10:29:25,282 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-09-08 10:29:25,425 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-08 10:29:25,592 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-08 10:29:26,058 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-08 10:29:26,308 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-08 10:29:26,599 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-08 10:29:26,943 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-08 10:29:27,105 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-08 10:29:27,413 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2019-09-08 10:29:27,676 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-08 10:29:27,964 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2019-09-08 10:29:28,408 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-09-08 10:29:28,985 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-08 10:29:29,290 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-08 10:29:29,444 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-09-08 10:29:29,839 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-08 10:29:30,030 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-08 10:29:30,228 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-08 10:29:30,407 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-08 10:29:30,675 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-08 10:29:31,093 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-08 10:29:31,326 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-08 10:29:31,522 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2019-09-08 10:29:31,718 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2019-09-08 10:29:31,908 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-08 10:29:32,051 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-09-08 10:29:32,229 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-08 10:29:32,370 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-09-08 10:29:32,625 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-08 10:29:32,892 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-08 10:29:33,147 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-08 10:29:33,361 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 10:29:33,539 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 10:29:33,694 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 10:29:33,926 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-08 10:29:34,144 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-08 10:29:34,455 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-08 10:29:34,763 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2019-09-08 10:29:35,100 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-08 10:29:35,242 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-08 10:29:35,403 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-08 10:29:35,607 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-08 10:29:35,855 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-08 10:29:35,990 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-08 10:29:36,209 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-08 10:29:36,419 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-08 10:29:36,726 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-08 10:29:37,029 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-08 10:29:37,306 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-08 10:29:37,527 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2019-09-08 10:29:37,714 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-09-08 10:29:37,919 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-08 10:29:38,529 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-08 10:29:38,703 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-08 10:29:38,928 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-08 10:29:39,188 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-08 10:29:39,444 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 10:29:39,752 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-08 10:29:39,968 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2019-09-08 10:29:40,114 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-09-08 10:29:40,605 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-08 10:29:40,799 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2019-09-08 10:29:40,980 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-08 10:29:41,125 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-08 10:29:41,467 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-08 10:29:41,737 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-08 10:29:42,110 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-08 10:29:42,638 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-08 10:29:43,080 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-08 10:29:43,231 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-08 10:29:43,390 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-08 10:29:43,878 WARN L188 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-08 10:29:44,253 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 10:29:44,563 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-08 10:29:44,786 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-08 10:29:45,009 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2019-09-08 10:29:45,332 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2019-09-08 10:29:45,701 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-08 10:29:46,032 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-08 10:29:46,330 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-08 10:29:46,506 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-08 10:29:46,763 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-08 10:29:47,103 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-08 10:29:47,421 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-08 10:29:47,648 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-08 10:29:47,845 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2019-09-08 10:29:48,310 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-08 10:29:48,581 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-08 10:29:49,009 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 10:29:49,232 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2019-09-08 10:29:49,718 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-08 10:29:50,044 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-08 10:29:50,199 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-08 10:29:50,596 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-08 10:29:50,955 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-08 10:29:51,376 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-08 10:29:51,755 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2019-09-08 10:29:52,270 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-08 10:29:52,661 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-08 10:29:52,865 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-08 10:29:53,307 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-09-08 10:29:53,577 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-08 10:29:53,738 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 10:29:54,257 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-08 10:29:54,593 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2019-09-08 10:29:55,025 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-08 10:29:55,234 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2019-09-08 10:29:55,556 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-08 10:29:56,042 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-08 10:29:56,228 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-08 10:29:56,710 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-08 10:29:57,017 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-09-08 10:29:57,302 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-08 10:29:57,634 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-08 10:29:58,315 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-08 10:29:58,553 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-08 10:29:58,714 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2019-09-08 10:29:58,904 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2019-09-08 10:29:59,217 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-08 10:29:59,506 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-08 10:29:59,906 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-08 10:30:00,290 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-08 10:30:00,563 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-09-08 10:30:01,054 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-08 10:30:01,361 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-08 10:30:01,807 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-08 10:30:02,060 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-08 10:30:02,254 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-08 10:30:02,680 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2019-09-08 10:30:02,922 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-08 10:30:03,230 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-08 10:30:03,518 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-08 10:30:03,702 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-08 10:30:04,376 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-08 10:30:05,384 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-08 10:30:05,543 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-08 10:30:05,698 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2019-09-08 10:30:05,844 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2019-09-08 10:30:06,237 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2019-09-08 10:30:06,619 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-08 10:30:06,948 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-08 10:30:07,175 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-08 10:30:07,507 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-08 10:30:08,275 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-08 10:30:08,860 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-08 10:30:09,133 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-08 10:30:09,329 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-08 10:30:10,458 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-08 10:30:10,625 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-08 10:30:11,168 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-08 10:30:11,709 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-08 10:30:12,090 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-08 10:30:12,382 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-08 10:30:13,209 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2019-09-08 10:30:14,304 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2019-09-08 10:30:14,636 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-09-08 10:30:15,385 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-08 10:30:15,581 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-08 10:30:16,418 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-08 10:30:16,703 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-08 10:30:17,560 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-08 10:30:17,761 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-08 10:30:18,402 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-08 10:30:18,604 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-08 10:30:20,189 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-08 10:30:21,315 WARN L188 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-09-08 10:30:21,960 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-08 10:30:22,651 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-08 10:30:26,211 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-08 10:30:31,126 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-08 10:30:36,401 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-08 10:30:37,645 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-08 10:30:49,272 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-08 10:32:11,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:32:11,779 INFO L93 Difference]: Finished difference Result 728940 states and 922026 transitions. [2019-09-08 10:32:11,780 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 337 states. [2019-09-08 10:32:11,780 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 75 [2019-09-08 10:32:11,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:32:12,672 INFO L225 Difference]: With dead ends: 728940 [2019-09-08 10:32:12,672 INFO L226 Difference]: Without dead ends: 629291 [2019-09-08 10:32:12,824 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 53 SyntacticMatches, 15 SemanticMatches, 352 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57681 ImplicationChecksByTransitivity, 59.9s TimeCoverageRelationStatistics Valid=14194, Invalid=110768, Unknown=0, NotChecked=0, Total=124962 [2019-09-08 10:32:13,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629291 states. [2019-09-08 10:32:51,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629291 to 218805. [2019-09-08 10:32:51,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218805 states. [2019-09-08 10:32:51,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218805 states to 218805 states and 280471 transitions. [2019-09-08 10:32:51,856 INFO L78 Accepts]: Start accepts. Automaton has 218805 states and 280471 transitions. Word has length 75 [2019-09-08 10:32:51,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:32:51,857 INFO L475 AbstractCegarLoop]: Abstraction has 218805 states and 280471 transitions. [2019-09-08 10:32:51,857 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-08 10:32:51,857 INFO L276 IsEmpty]: Start isEmpty. Operand 218805 states and 280471 transitions. [2019-09-08 10:32:51,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-09-08 10:32:51,864 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:32:51,864 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 10:32:51,864 INFO L418 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:32:51,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:32:51,864 INFO L82 PathProgramCache]: Analyzing trace with hash -206681859, now seen corresponding path program 1 times [2019-09-08 10:32:51,864 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:32:51,864 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:32:51,865 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:32:51,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:32:51,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:32:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:32:51,907 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 10:32:51,907 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 10:32:51,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 10:32:51,908 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 10:32:51,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 10:32:51,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 10:32:51,908 INFO L87 Difference]: Start difference. First operand 218805 states and 280471 transitions. Second operand 3 states. [2019-09-08 10:33:27,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:33:27,944 INFO L93 Difference]: Finished difference Result 278661 states and 356544 transitions. [2019-09-08 10:33:27,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 10:33:27,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2019-09-08 10:33:27,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:33:28,187 INFO L225 Difference]: With dead ends: 278661 [2019-09-08 10:33:28,188 INFO L226 Difference]: Without dead ends: 196369 [2019-09-08 10:33:28,263 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 10:33:28,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196369 states. [2019-09-08 10:34:00,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196369 to 196367. [2019-09-08 10:34:00,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196367 states. [2019-09-08 10:34:00,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196367 states to 196367 states and 248420 transitions. [2019-09-08 10:34:00,521 INFO L78 Accepts]: Start accepts. Automaton has 196367 states and 248420 transitions. Word has length 76 [2019-09-08 10:34:00,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:34:00,521 INFO L475 AbstractCegarLoop]: Abstraction has 196367 states and 248420 transitions. [2019-09-08 10:34:00,521 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 10:34:00,521 INFO L276 IsEmpty]: Start isEmpty. Operand 196367 states and 248420 transitions. [2019-09-08 10:34:00,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-09-08 10:34:00,528 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:34:00,528 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 10:34:00,529 INFO L418 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:34:00,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:34:00,529 INFO L82 PathProgramCache]: Analyzing trace with hash 1710892072, now seen corresponding path program 1 times [2019-09-08 10:34:00,529 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:34:00,529 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:34:00,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:34:00,530 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:34:00,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:34:00,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:34:00,557 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-08 10:34:00,557 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 10:34:00,558 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 10:34:00,558 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 10:34:00,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 10:34:00,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 10:34:00,558 INFO L87 Difference]: Start difference. First operand 196367 states and 248420 transitions. Second operand 3 states. [2019-09-08 10:34:25,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 10:34:25,215 INFO L93 Difference]: Finished difference Result 307992 states and 390521 transitions. [2019-09-08 10:34:25,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 10:34:25,215 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2019-09-08 10:34:25,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 10:34:25,376 INFO L225 Difference]: With dead ends: 307992 [2019-09-08 10:34:25,376 INFO L226 Difference]: Without dead ends: 128121 [2019-09-08 10:34:25,482 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 10:34:25,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128121 states. [2019-09-08 10:34:45,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128121 to 128121. [2019-09-08 10:34:45,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128121 states. [2019-09-08 10:34:45,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128121 states to 128121 states and 159857 transitions. [2019-09-08 10:34:45,475 INFO L78 Accepts]: Start accepts. Automaton has 128121 states and 159857 transitions. Word has length 76 [2019-09-08 10:34:45,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 10:34:45,476 INFO L475 AbstractCegarLoop]: Abstraction has 128121 states and 159857 transitions. [2019-09-08 10:34:45,476 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 10:34:45,476 INFO L276 IsEmpty]: Start isEmpty. Operand 128121 states and 159857 transitions. [2019-09-08 10:34:45,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-09-08 10:34:45,481 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 10:34:45,481 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 10:34:45,481 INFO L418 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 10:34:45,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 10:34:45,482 INFO L82 PathProgramCache]: Analyzing trace with hash -1270117650, now seen corresponding path program 1 times [2019-09-08 10:34:45,482 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 10:34:45,482 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 10:34:45,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:34:45,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:34:45,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 10:34:45,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:34:46,331 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 10:34:46,331 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 10:34:46,332 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 10:34:46,352 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 10:34:46,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 10:34:46,455 INFO L256 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 23 conjunts are in the unsatisfiable core [2019-09-08 10:34:46,458 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 10:34:46,757 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 10:34:47,135 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 10:34:47,148 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 10:34:47,149 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13] total 28 [2019-09-08 10:34:47,151 INFO L454 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-09-08 10:34:47,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-09-08 10:34:47,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=687, Unknown=0, NotChecked=0, Total=756 [2019-09-08 10:34:47,152 INFO L87 Difference]: Start difference. First operand 128121 states and 159857 transitions. Second operand 28 states. [2019-09-08 10:34:49,917 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2019-09-08 10:34:51,730 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2019-09-08 10:34:51,907 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-08 10:34:52,136 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2019-09-08 10:34:52,369 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-09-08 10:34:54,155 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2019-09-08 10:34:54,416 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2019-09-08 10:34:54,670 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2019-09-08 10:34:54,905 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2019-09-08 10:34:55,161 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-08 10:34:55,434 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-08 10:34:55,593 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-09-08 10:34:55,868 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2019-09-08 10:34:56,186 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2019-09-08 10:34:56,685 WARN L188 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-08 10:34:56,979 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2019-09-08 10:34:57,228 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-09-08 10:34:57,428 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2019-09-08 10:34:57,951 WARN L188 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2019-09-08 10:34:58,148 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-09-08 10:34:58,686 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-08 10:34:58,824 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-08 10:34:59,199 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2019-09-08 10:34:59,665 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-08 10:35:00,596 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-08 10:35:01,480 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2019-09-08 10:35:02,092 WARN L188 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-08 10:35:02,387 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2019-09-08 10:35:02,571 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2019-09-08 10:35:02,907 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-08 10:35:03,096 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-08 10:35:03,330 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2019-09-08 10:35:03,484 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 37 [2019-09-08 10:35:03,881 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2019-09-08 10:35:04,092 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2019-09-08 10:35:04,286 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-09-08 10:35:04,472 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-08 10:35:04,683 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-08 10:35:05,304 WARN L188 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2019-09-08 10:35:05,611 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2019-09-08 10:35:05,967 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-08 10:35:06,125 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-08 10:35:06,341 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-08 10:35:06,714 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2019-09-08 10:35:06,931 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2019-09-08 10:35:07,211 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2019-09-08 10:35:08,728 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2019-09-08 10:35:08,910 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 51 [2019-09-08 10:35:09,126 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2019-09-08 10:35:09,343 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2019-09-08 10:35:09,600 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2019-09-08 10:35:09,963 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-09-08 10:35:10,137 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-09-08 10:35:10,772 WARN L188 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2019-09-08 10:35:10,969 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2019-09-08 10:35:11,181 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-08 10:35:11,452 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2019-09-08 10:35:11,655 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2019-09-08 10:35:11,995 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2019-09-08 10:35:12,241 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2019-09-08 10:35:12,409 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2019-09-08 10:35:12,598 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 40 [2019-09-08 10:35:12,944 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-08 10:35:13,136 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-08 10:35:13,372 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2019-09-08 10:35:13,640 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2019-09-08 10:35:13,853 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2019-09-08 10:35:14,096 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2019-09-08 10:35:14,425 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2019-09-08 10:35:14,745 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-09-08 10:35:14,964 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-09-08 10:35:15,262 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2019-09-08 10:35:15,579 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-08 10:35:15,862 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-08 10:35:16,116 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-09-08 10:35:16,388 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2019-09-08 10:35:16,585 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-09-08 10:35:16,777 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-08 10:35:17,026 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-09-08 10:35:17,212 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-09-08 10:35:17,441 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-08 10:35:17,655 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-08 10:35:17,933 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-08 10:35:18,415 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-08 10:35:18,650 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-08 10:35:18,916 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2019-09-08 10:35:19,462 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-08 10:35:19,622 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2019-09-08 10:35:19,852 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-09-08 10:35:20,065 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-08 10:35:20,417 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2019-09-08 10:35:20,856 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2019-09-08 10:35:21,135 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-09-08 10:35:21,437 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2019-09-08 10:35:21,765 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2019-09-08 10:35:22,062 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-08 10:35:22,248 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2019-09-08 10:35:22,698 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2019-09-08 10:35:22,993 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-08 10:35:23,300 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-08 10:35:23,505 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2019-09-08 10:35:23,755 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 56 [2019-09-08 10:35:23,958 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 47 [2019-09-08 10:35:24,183 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2019-09-08 10:35:24,488 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2019-09-08 10:35:24,980 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2019-09-08 10:35:25,141 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-09-08 10:35:25,403 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-09-08 10:35:25,601 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-08 10:35:25,853 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 51 [2019-09-08 10:35:26,101 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2019-09-08 10:35:26,430 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2019-09-08 10:35:26,691 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2019-09-08 10:35:26,967 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2019-09-08 10:35:27,141 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2019-09-08 10:35:27,426 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2019-09-08 10:35:27,669 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-08 10:35:27,923 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-08 10:35:28,265 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2019-09-08 10:35:28,496 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2019-09-08 10:35:28,879 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2019-09-08 10:35:29,162 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2019-09-08 10:35:29,470 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2019-09-08 10:35:29,767 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-09-08 10:35:29,993 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-08 10:35:30,275 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2019-09-08 10:35:30,440 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-09-08 10:35:30,678 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2019-09-08 10:35:30,975 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2019-09-08 10:35:31,239 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2019-09-08 10:35:31,520 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-08 10:35:31,873 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2019-09-08 10:35:32,151 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2019-09-08 10:35:32,442 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2019-09-08 10:35:32,735 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2019-09-08 10:35:33,071 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2019-09-08 10:35:35,346 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 47 [2019-09-08 10:35:35,601 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2019-09-08 10:35:35,950 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2019-09-08 10:35:36,324 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2019-09-08 10:35:36,860 WARN L188 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2019-09-08 10:35:37,181 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2019-09-08 10:35:37,925 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2019-09-08 10:35:38,309 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 77 [2019-09-08 10:35:38,581 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2019-09-08 10:35:38,778 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 51 [2019-09-08 10:35:39,001 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2019-09-08 10:35:39,289 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2019-09-08 10:35:39,604 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 77 [2019-09-08 10:35:40,045 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 85 [2019-09-08 10:35:40,364 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2019-09-08 10:35:40,888 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-08 10:35:41,168 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2019-09-08 10:35:41,331 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2019-09-08 10:35:41,627 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2019-09-08 10:35:41,959 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2019-09-08 10:35:42,154 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2019-09-08 10:35:42,553 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2019-09-08 10:35:42,867 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2019-09-08 10:35:43,062 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-09-08 10:35:43,436 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 78 [2019-09-08 10:35:43,694 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 70 [2019-09-08 10:35:44,060 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 82 [2019-09-08 10:35:44,231 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 41 [2019-09-08 10:35:44,467 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-09-08 10:35:44,948 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2019-09-08 10:35:45,142 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-08 10:35:45,500 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2019-09-08 10:35:45,741 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2019-09-08 10:35:46,010 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2019-09-08 10:35:46,361 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2019-09-08 10:35:46,828 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2019-09-08 10:35:47,276 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 84 [2019-09-08 10:35:47,446 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 50 [2019-09-08 10:35:47,656 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2019-09-08 10:35:48,305 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 85 [2019-09-08 10:35:48,552 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2019-09-08 10:35:48,791 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 55 [2019-09-08 10:35:49,015 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2019-09-08 10:35:51,724 WARN L188 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2019-09-08 10:35:51,883 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-08 10:35:52,388 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2019-09-08 10:35:52,762 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-09-08 10:35:53,256 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2019-09-08 10:35:54,319 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-09-08 10:35:55,606 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2019-09-08 10:35:56,854 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-08 10:35:57,426 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-08 10:35:57,620 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2019-09-08 10:35:58,018 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2019-09-08 10:35:58,439 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-08 10:35:58,614 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-08 10:35:58,836 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-09-08 10:35:59,095 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-09-08 10:35:59,265 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2019-09-08 10:35:59,789 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2019-09-08 10:36:00,257 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2019-09-08 10:36:00,440 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2019-09-08 10:36:01,147 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-08 10:36:01,539 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2019-09-08 10:36:01,865 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2019-09-08 10:36:02,483 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-08 10:36:02,650 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-08 10:36:02,899 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2019-09-08 10:36:03,295 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-09-08 10:36:03,467 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-08 10:36:03,645 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 40 [2019-09-08 10:36:03,855 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2019-09-08 10:36:04,493 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-08 10:36:04,662 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-08 10:36:04,895 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-08 10:36:05,423 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2019-09-08 10:36:05,974 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2019-09-08 10:36:06,164 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2019-09-08 10:36:06,572 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 50 [2019-09-08 10:36:06,873 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2019-09-08 10:36:07,260 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2019-09-08 10:36:12,862 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2019-09-08 10:36:13,748 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2019-09-08 10:36:13,961 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2019-09-08 10:36:14,253 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2019-09-08 10:36:15,850 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2019-09-08 10:36:16,167 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-09-08 10:36:16,409 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-08 10:36:16,640 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2019-09-08 10:36:16,864 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-08 10:36:17,395 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2019-09-08 10:36:17,589 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2019-09-08 10:36:18,320 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-08 10:36:18,552 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-08 10:36:18,752 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-08 10:36:18,901 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-08 10:36:19,133 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2019-09-08 10:36:19,447 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-09-08 10:36:19,672 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2019-09-08 10:36:20,051 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2019-09-08 10:36:20,503 WARN L188 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-09-08 10:36:20,644 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-08 10:36:21,018 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2019-09-08 10:36:21,247 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-08 10:36:21,428 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2019-09-08 10:36:21,732 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2019-09-08 10:36:21,975 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2019-09-08 10:36:22,402 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2019-09-08 10:36:22,587 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2019-09-08 10:36:22,760 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-09-08 10:36:23,988 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 58 [2019-09-08 10:36:24,329 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-09-08 10:36:24,524 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-08 10:36:24,753 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-08 10:36:25,175 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-09-08 10:36:25,652 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-08 10:36:25,907 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2019-09-08 10:36:26,100 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-08 10:36:26,403 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2019-09-08 10:36:26,602 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-08 10:36:26,960 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-08 10:36:27,208 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2019-09-08 10:36:27,399 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-08 10:36:27,727 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-09-08 10:36:28,035 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2019-09-08 10:36:28,369 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2019-09-08 10:36:28,873 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2019-09-08 10:36:29,397 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2019-09-08 10:36:29,970 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-09-08 10:36:30,198 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2019-09-08 10:36:30,373 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-08 10:36:30,615 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2019-09-08 10:36:30,895 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2019-09-08 10:36:31,224 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2019-09-08 10:36:31,578 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2019-09-08 10:36:31,974 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2019-09-08 10:36:32,190 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2019-09-08 10:36:32,723 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2019-09-08 10:36:32,994 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2019-09-08 10:36:33,402 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-09-08 10:36:33,736 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2019-09-08 10:36:33,985 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2019-09-08 10:36:34,208 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2019-09-08 10:36:34,442 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2019-09-08 10:36:34,989 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-08 10:36:35,210 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-08 10:36:35,464 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2019-09-08 10:36:35,706 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2019-09-08 10:36:35,974 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2019-09-08 10:36:36,258 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2019-09-08 10:36:36,524 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2019-09-08 10:36:37,055 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2019-09-08 10:36:37,264 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2019-09-08 10:36:37,880 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2019-09-08 10:36:38,097 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2019-09-08 10:36:38,302 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2019-09-08 10:36:38,826 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2019-09-08 10:36:39,644 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2019-09-08 10:36:39,889 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2019-09-08 10:36:40,368 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 81 [2019-09-08 10:36:40,709 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2019-09-08 10:36:41,921 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2019-09-08 10:36:42,277 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2019-09-08 10:36:42,628 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2019-09-08 10:36:42,958 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 78 [2019-09-08 10:36:43,565 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 81 [2019-09-08 10:36:44,012 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2019-09-08 10:36:44,413 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2019-09-08 10:36:46,461 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2019-09-08 10:36:47,036 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-09-08 10:36:47,985 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2019-09-08 10:36:49,079 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2019-09-08 10:36:49,379 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2019-09-08 10:36:50,140 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-09-08 10:36:51,190 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-09-08 10:36:51,583 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2019-09-08 10:36:52,366 WARN L188 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-08 10:36:54,847 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2019-09-08 10:36:55,926 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-09-08 10:36:58,368 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2019-09-08 10:36:58,792 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-08 10:37:01,415 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49