java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 07:39:02,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 07:39:02,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 07:39:02,615 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 07:39:02,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 07:39:02,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 07:39:02,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 07:39:02,624 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 07:39:02,628 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 07:39:02,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 07:39:02,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 07:39:02,634 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 07:39:02,635 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 07:39:02,636 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 07:39:02,638 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 07:39:02,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 07:39:02,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 07:39:02,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 07:39:02,651 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 07:39:02,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 07:39:02,659 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 07:39:02,660 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 07:39:02,661 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 07:39:02,662 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 07:39:02,664 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-10 07:39:02,664 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-10 07:39:02,664 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-10 07:39:02,665 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-10 07:39:02,666 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-10 07:39:02,667 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-10 07:39:02,667 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 07:39:02,670 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 07:39:02,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 07:39:02,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 07:39:02,673 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 07:39:02,674 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 07:39:02,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 07:39:02,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 07:39:02,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 07:39:02,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 07:39:02,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 07:39:02,681 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 07:39:02,709 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 07:39:02,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 07:39:02,711 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 07:39:02,711 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 07:39:02,712 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 07:39:02,712 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 07:39:02,713 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 07:39:02,713 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 07:39:02,713 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 07:39:02,713 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 07:39:02,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 07:39:02,716 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 07:39:02,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 07:39:02,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 07:39:02,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 07:39:02,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 07:39:02,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 07:39:02,717 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 07:39:02,717 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 07:39:02,718 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 07:39:02,718 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 07:39:02,718 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 07:39:02,718 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 07:39:02,719 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 07:39:02,719 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 07:39:02,719 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 07:39:02,719 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 07:39:02,719 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 07:39:02,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 07:39:02,720 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 07:39:02,771 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 07:39:02,789 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 07:39:02,793 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 07:39:02,795 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 07:39:02,795 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 07:39:02,796 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2019-09-10 07:39:02,860 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1c379451/6a827c58a12d40b8931ec63495fd8817/FLAG4d7c6ca44 [2019-09-10 07:39:03,348 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 07:39:03,349 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2019-09-10 07:39:03,357 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1c379451/6a827c58a12d40b8931ec63495fd8817/FLAG4d7c6ca44 [2019-09-10 07:39:03,636 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e1c379451/6a827c58a12d40b8931ec63495fd8817 [2019-09-10 07:39:03,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 07:39:03,648 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 07:39:03,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 07:39:03,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 07:39:03,653 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 07:39:03,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 07:39:03" (1/1) ... [2019-09-10 07:39:03,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fba9d4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:39:03, skipping insertion in model container [2019-09-10 07:39:03,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 07:39:03" (1/1) ... [2019-09-10 07:39:03,664 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 07:39:03,717 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 07:39:04,041 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 07:39:04,054 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 07:39:04,225 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 07:39:04,246 INFO L192 MainTranslator]: Completed translation [2019-09-10 07:39:04,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:39:04 WrapperNode [2019-09-10 07:39:04,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 07:39:04,248 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 07:39:04,248 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 07:39:04,248 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 07:39:04,260 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:39:04" (1/1) ... [2019-09-10 07:39:04,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:39:04" (1/1) ... [2019-09-10 07:39:04,269 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:39:04" (1/1) ... [2019-09-10 07:39:04,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:39:04" (1/1) ... [2019-09-10 07:39:04,281 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:39:04" (1/1) ... [2019-09-10 07:39:04,289 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:39:04" (1/1) ... [2019-09-10 07:39:04,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:39:04" (1/1) ... [2019-09-10 07:39:04,295 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 07:39:04,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 07:39:04,296 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 07:39:04,296 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 07:39:04,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:39:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 07:39:04,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 07:39:04,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 07:39:04,354 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 07:39:04,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 07:39:04,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-10 07:39:04,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-10 07:39:04,354 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-10 07:39:04,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 07:39:04,355 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-10 07:39:04,355 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-10 07:39:04,355 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-10 07:39:04,356 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-10 07:39:04,356 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-10 07:39:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2019-09-10 07:39:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-10 07:39:04,357 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-10 07:39:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 07:39:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 07:39:04,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 07:39:05,000 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 07:39:05,001 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 07:39:05,002 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 07:39:05 BoogieIcfgContainer [2019-09-10 07:39:05,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 07:39:05,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 07:39:05,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 07:39:05,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 07:39:05,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 07:39:03" (1/3) ... [2019-09-10 07:39:05,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@249d6e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 07:39:05, skipping insertion in model container [2019-09-10 07:39:05,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:39:04" (2/3) ... [2019-09-10 07:39:05,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@249d6e72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 07:39:05, skipping insertion in model container [2019-09-10 07:39:05,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 07:39:05" (3/3) ... [2019-09-10 07:39:05,019 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2019-09-10 07:39:05,032 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 07:39:05,054 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 07:39:05,072 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 07:39:05,108 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 07:39:05,108 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 07:39:05,109 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 07:39:05,109 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 07:39:05,109 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 07:39:05,110 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 07:39:05,110 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 07:39:05,110 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 07:39:05,134 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2019-09-10 07:39:05,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 07:39:05,147 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:39:05,148 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, 1, 1, 1, 1] [2019-09-10 07:39:05,150 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:39:05,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:05,156 INFO L82 PathProgramCache]: Analyzing trace with hash -808091589, now seen corresponding path program 1 times [2019-09-10 07:39:05,159 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:39:05,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:05,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:05,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:05,212 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:39:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:05,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:05,582 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:39:05,583 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:39:05,583 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:39:05,588 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:39:05,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:39:05,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:39:05,605 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2019-09-10 07:39:05,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:39:05,671 INFO L93 Difference]: Finished difference Result 130 states and 206 transitions. [2019-09-10 07:39:05,671 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:39:05,673 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-09-10 07:39:05,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:39:05,686 INFO L225 Difference]: With dead ends: 130 [2019-09-10 07:39:05,687 INFO L226 Difference]: Without dead ends: 122 [2019-09-10 07:39:05,689 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 [2019-09-10 07:39:05,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-09-10 07:39:05,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2019-09-10 07:39:05,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-09-10 07:39:05,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 173 transitions. [2019-09-10 07:39:05,742 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 173 transitions. Word has length 51 [2019-09-10 07:39:05,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:39:05,743 INFO L475 AbstractCegarLoop]: Abstraction has 120 states and 173 transitions. [2019-09-10 07:39:05,743 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:39:05,744 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 173 transitions. [2019-09-10 07:39:05,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 07:39:05,746 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:39:05,746 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, 1, 1, 1, 1, 1] [2019-09-10 07:39:05,746 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:39:05,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:05,747 INFO L82 PathProgramCache]: Analyzing trace with hash 611188033, now seen corresponding path program 1 times [2019-09-10 07:39:05,747 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:39:05,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:05,750 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:05,750 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:05,750 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:39:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:05,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:05,904 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:39:05,905 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:39:05,905 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:39:05,908 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:39:05,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:39:05,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:39:05,909 INFO L87 Difference]: Start difference. First operand 120 states and 173 transitions. Second operand 3 states. [2019-09-10 07:39:05,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:39:05,953 INFO L93 Difference]: Finished difference Result 194 states and 288 transitions. [2019-09-10 07:39:05,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:39:05,954 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-10 07:39:05,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:39:05,956 INFO L225 Difference]: With dead ends: 194 [2019-09-10 07:39:05,957 INFO L226 Difference]: Without dead ends: 194 [2019-09-10 07:39:05,957 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 [2019-09-10 07:39:05,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2019-09-10 07:39:05,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 192. [2019-09-10 07:39:05,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2019-09-10 07:39:05,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 287 transitions. [2019-09-10 07:39:05,985 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 287 transitions. Word has length 52 [2019-09-10 07:39:05,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:39:05,985 INFO L475 AbstractCegarLoop]: Abstraction has 192 states and 287 transitions. [2019-09-10 07:39:05,985 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:39:05,986 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 287 transitions. [2019-09-10 07:39:05,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-09-10 07:39:05,987 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:39:05,988 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, 1, 1, 1, 1, 1, 1] [2019-09-10 07:39:05,988 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:39:05,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:05,989 INFO L82 PathProgramCache]: Analyzing trace with hash 253553889, now seen corresponding path program 1 times [2019-09-10 07:39:05,989 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:39:05,990 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:05,991 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:05,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:06,006 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:39:06,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:06,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:06,124 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:39:06,124 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:39:06,124 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:39:06,125 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:39:06,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:39:06,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:39:06,126 INFO L87 Difference]: Start difference. First operand 192 states and 287 transitions. Second operand 3 states. [2019-09-10 07:39:06,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:39:06,173 INFO L93 Difference]: Finished difference Result 322 states and 488 transitions. [2019-09-10 07:39:06,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:39:06,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-09-10 07:39:06,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:39:06,182 INFO L225 Difference]: With dead ends: 322 [2019-09-10 07:39:06,182 INFO L226 Difference]: Without dead ends: 322 [2019-09-10 07:39:06,183 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 [2019-09-10 07:39:06,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2019-09-10 07:39:06,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 320. [2019-09-10 07:39:06,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2019-09-10 07:39:06,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 487 transitions. [2019-09-10 07:39:06,223 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 487 transitions. Word has length 53 [2019-09-10 07:39:06,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:39:06,224 INFO L475 AbstractCegarLoop]: Abstraction has 320 states and 487 transitions. [2019-09-10 07:39:06,224 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:39:06,224 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 487 transitions. [2019-09-10 07:39:06,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-09-10 07:39:06,230 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:39:06,230 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, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:39:06,230 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:39:06,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:06,231 INFO L82 PathProgramCache]: Analyzing trace with hash 1053117289, now seen corresponding path program 1 times [2019-09-10 07:39:06,231 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:39:06,233 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:06,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:06,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:06,234 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:39:06,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:06,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:06,301 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:39:06,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:39:06,301 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:39:06,302 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:39:06,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:39:06,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:39:06,302 INFO L87 Difference]: Start difference. First operand 320 states and 487 transitions. Second operand 3 states. [2019-09-10 07:39:06,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:39:06,327 INFO L93 Difference]: Finished difference Result 546 states and 832 transitions. [2019-09-10 07:39:06,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:39:06,328 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2019-09-10 07:39:06,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:39:06,331 INFO L225 Difference]: With dead ends: 546 [2019-09-10 07:39:06,332 INFO L226 Difference]: Without dead ends: 546 [2019-09-10 07:39:06,332 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 [2019-09-10 07:39:06,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2019-09-10 07:39:06,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 544. [2019-09-10 07:39:06,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2019-09-10 07:39:06,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 831 transitions. [2019-09-10 07:39:06,354 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 831 transitions. Word has length 54 [2019-09-10 07:39:06,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:39:06,354 INFO L475 AbstractCegarLoop]: Abstraction has 544 states and 831 transitions. [2019-09-10 07:39:06,354 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:39:06,354 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 831 transitions. [2019-09-10 07:39:06,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-10 07:39:06,356 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:39:06,356 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:39:06,356 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:39:06,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:06,357 INFO L82 PathProgramCache]: Analyzing trace with hash -935080225, now seen corresponding path program 1 times [2019-09-10 07:39:06,357 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:39:06,358 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:06,358 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:06,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:06,359 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:39:06,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:06,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:06,464 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:39:06,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:39:06,464 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:39:06,465 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:39:06,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:39:06,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:39:06,465 INFO L87 Difference]: Start difference. First operand 544 states and 831 transitions. Second operand 5 states. [2019-09-10 07:39:06,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:39:06,704 INFO L93 Difference]: Finished difference Result 1058 states and 1624 transitions. [2019-09-10 07:39:06,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:39:06,705 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2019-09-10 07:39:06,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:39:06,717 INFO L225 Difference]: With dead ends: 1058 [2019-09-10 07:39:06,717 INFO L226 Difference]: Without dead ends: 1058 [2019-09-10 07:39:06,718 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 [2019-09-10 07:39:06,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2019-09-10 07:39:06,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1056. [2019-09-10 07:39:06,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2019-09-10 07:39:06,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1623 transitions. [2019-09-10 07:39:06,758 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1623 transitions. Word has length 55 [2019-09-10 07:39:06,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:39:06,758 INFO L475 AbstractCegarLoop]: Abstraction has 1056 states and 1623 transitions. [2019-09-10 07:39:06,758 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:39:06,758 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1623 transitions. [2019-09-10 07:39:06,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-10 07:39:06,768 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:39:06,768 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:39:06,768 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:39:06,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:06,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1895815514, now seen corresponding path program 1 times [2019-09-10 07:39:06,769 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:39:06,770 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:06,771 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:06,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:06,771 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:39:06,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:06,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:06,890 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:39:06,891 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:39:06,891 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:39:06,892 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:39:06,892 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:39:06,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:39:06,893 INFO L87 Difference]: Start difference. First operand 1056 states and 1623 transitions. Second operand 5 states. [2019-09-10 07:39:07,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:39:07,008 INFO L93 Difference]: Finished difference Result 1056 states and 1607 transitions. [2019-09-10 07:39:07,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:39:07,009 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2019-09-10 07:39:07,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:39:07,015 INFO L225 Difference]: With dead ends: 1056 [2019-09-10 07:39:07,016 INFO L226 Difference]: Without dead ends: 1056 [2019-09-10 07:39:07,016 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 [2019-09-10 07:39:07,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2019-09-10 07:39:07,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1056. [2019-09-10 07:39:07,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2019-09-10 07:39:07,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1607 transitions. [2019-09-10 07:39:07,060 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1607 transitions. Word has length 55 [2019-09-10 07:39:07,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:39:07,062 INFO L475 AbstractCegarLoop]: Abstraction has 1056 states and 1607 transitions. [2019-09-10 07:39:07,062 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:39:07,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1607 transitions. [2019-09-10 07:39:07,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-10 07:39:07,063 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:39:07,064 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, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:39:07,064 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:39:07,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:07,065 INFO L82 PathProgramCache]: Analyzing trace with hash 53784981, now seen corresponding path program 1 times [2019-09-10 07:39:07,066 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:39:07,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:07,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:07,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:07,067 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:39:07,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:07,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:07,179 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:39:07,179 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 07:39:07,180 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:39:07,180 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 07:39:07,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 07:39:07,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-10 07:39:07,181 INFO L87 Difference]: Start difference. First operand 1056 states and 1607 transitions. Second operand 6 states. [2019-09-10 07:39:07,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:39:07,371 INFO L93 Difference]: Finished difference Result 5160 states and 7851 transitions. [2019-09-10 07:39:07,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 07:39:07,372 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2019-09-10 07:39:07,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:39:07,403 INFO L225 Difference]: With dead ends: 5160 [2019-09-10 07:39:07,403 INFO L226 Difference]: Without dead ends: 5160 [2019-09-10 07:39:07,404 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-09-10 07:39:07,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5160 states. [2019-09-10 07:39:07,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5160 to 2080. [2019-09-10 07:39:07,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2080 states. [2019-09-10 07:39:07,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 3119 transitions. [2019-09-10 07:39:07,506 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 3119 transitions. Word has length 55 [2019-09-10 07:39:07,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:39:07,506 INFO L475 AbstractCegarLoop]: Abstraction has 2080 states and 3119 transitions. [2019-09-10 07:39:07,507 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 07:39:07,507 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 3119 transitions. [2019-09-10 07:39:07,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 07:39:07,507 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:39:07,510 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:39:07,511 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:39:07,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:07,511 INFO L82 PathProgramCache]: Analyzing trace with hash -745433840, now seen corresponding path program 1 times [2019-09-10 07:39:07,511 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:39:07,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:07,513 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:07,513 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:07,513 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:39:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:07,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:07,589 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:39:07,589 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:39:07,589 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:39:07,590 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:39:07,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:39:07,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:39:07,591 INFO L87 Difference]: Start difference. First operand 2080 states and 3119 transitions. Second operand 3 states. [2019-09-10 07:39:07,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:39:07,632 INFO L93 Difference]: Finished difference Result 2580 states and 3826 transitions. [2019-09-10 07:39:07,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:39:07,633 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2019-09-10 07:39:07,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:39:07,646 INFO L225 Difference]: With dead ends: 2580 [2019-09-10 07:39:07,647 INFO L226 Difference]: Without dead ends: 2580 [2019-09-10 07:39:07,647 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:39:07,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2019-09-10 07:39:07,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2578. [2019-09-10 07:39:07,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2578 states. [2019-09-10 07:39:07,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 3825 transitions. [2019-09-10 07:39:07,727 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 3825 transitions. Word has length 57 [2019-09-10 07:39:07,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:39:07,728 INFO L475 AbstractCegarLoop]: Abstraction has 2578 states and 3825 transitions. [2019-09-10 07:39:07,728 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:39:07,728 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 3825 transitions. [2019-09-10 07:39:07,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 07:39:07,729 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:39:07,729 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:39:07,729 INFO L418 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:39:07,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:07,730 INFO L82 PathProgramCache]: Analyzing trace with hash -725384497, now seen corresponding path program 1 times [2019-09-10 07:39:07,730 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:39:07,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:07,731 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:07,731 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:07,732 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:39:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:08,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:08,116 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:39:08,116 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 07:39:08,116 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:39:08,117 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 07:39:08,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 07:39:08,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-09-10 07:39:08,117 INFO L87 Difference]: Start difference. First operand 2578 states and 3825 transitions. Second operand 6 states. [2019-09-10 07:39:08,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:39:08,273 INFO L93 Difference]: Finished difference Result 5120 states and 7644 transitions. [2019-09-10 07:39:08,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 07:39:08,274 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2019-09-10 07:39:08,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:39:08,302 INFO L225 Difference]: With dead ends: 5120 [2019-09-10 07:39:08,302 INFO L226 Difference]: Without dead ends: 5120 [2019-09-10 07:39:08,303 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-09-10 07:39:08,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5120 states. [2019-09-10 07:39:08,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5120 to 2578. [2019-09-10 07:39:08,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2578 states. [2019-09-10 07:39:08,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 3785 transitions. [2019-09-10 07:39:08,407 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 3785 transitions. Word has length 57 [2019-09-10 07:39:08,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:39:08,408 INFO L475 AbstractCegarLoop]: Abstraction has 2578 states and 3785 transitions. [2019-09-10 07:39:08,408 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 07:39:08,408 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 3785 transitions. [2019-09-10 07:39:08,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-09-10 07:39:08,408 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:39:08,409 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:39:08,409 INFO L418 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:39:08,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:08,409 INFO L82 PathProgramCache]: Analyzing trace with hash -1013992321, now seen corresponding path program 1 times [2019-09-10 07:39:08,409 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:39:08,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:08,412 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:08,412 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:08,412 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:39:08,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:08,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:08,501 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:39:08,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:39:08,501 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:39:08,502 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:39:08,502 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:39:08,502 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:39:08,502 INFO L87 Difference]: Start difference. First operand 2578 states and 3785 transitions. Second operand 5 states. [2019-09-10 07:39:08,572 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:39:08,572 INFO L93 Difference]: Finished difference Result 5046 states and 7295 transitions. [2019-09-10 07:39:08,573 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 07:39:08,573 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-09-10 07:39:08,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:39:08,597 INFO L225 Difference]: With dead ends: 5046 [2019-09-10 07:39:08,598 INFO L226 Difference]: Without dead ends: 5046 [2019-09-10 07:39:08,598 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 [2019-09-10 07:39:08,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5046 states. [2019-09-10 07:39:08,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5046 to 2722. [2019-09-10 07:39:08,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2722 states. [2019-09-10 07:39:08,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2722 states to 2722 states and 3921 transitions. [2019-09-10 07:39:08,721 INFO L78 Accepts]: Start accepts. Automaton has 2722 states and 3921 transitions. Word has length 58 [2019-09-10 07:39:08,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:39:08,721 INFO L475 AbstractCegarLoop]: Abstraction has 2722 states and 3921 transitions. [2019-09-10 07:39:08,721 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:39:08,721 INFO L276 IsEmpty]: Start isEmpty. Operand 2722 states and 3921 transitions. [2019-09-10 07:39:08,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-09-10 07:39:08,723 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:39:08,724 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:39:08,725 INFO L418 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:39:08,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:08,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1387581406, now seen corresponding path program 1 times [2019-09-10 07:39:08,725 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:39:08,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:08,727 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:08,727 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:08,727 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:39:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:08,886 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 07:39:08,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:39:08,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 07:39:08,887 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:39:08,887 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 07:39:08,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 07:39:08,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-10 07:39:08,888 INFO L87 Difference]: Start difference. First operand 2722 states and 3921 transitions. Second operand 6 states. [2019-09-10 07:39:09,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:39:09,063 INFO L93 Difference]: Finished difference Result 6522 states and 9557 transitions. [2019-09-10 07:39:09,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 07:39:09,064 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2019-09-10 07:39:09,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:39:09,106 INFO L225 Difference]: With dead ends: 6522 [2019-09-10 07:39:09,106 INFO L226 Difference]: Without dead ends: 6522 [2019-09-10 07:39:09,106 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-09-10 07:39:09,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6522 states. [2019-09-10 07:39:09,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6522 to 3810. [2019-09-10 07:39:09,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3810 states. [2019-09-10 07:39:09,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3810 states to 3810 states and 5529 transitions. [2019-09-10 07:39:09,219 INFO L78 Accepts]: Start accepts. Automaton has 3810 states and 5529 transitions. Word has length 80 [2019-09-10 07:39:09,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:39:09,220 INFO L475 AbstractCegarLoop]: Abstraction has 3810 states and 5529 transitions. [2019-09-10 07:39:09,220 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 07:39:09,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3810 states and 5529 transitions. [2019-09-10 07:39:09,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-09-10 07:39:09,222 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:39:09,223 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:39:09,223 INFO L418 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:39:09,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:09,223 INFO L82 PathProgramCache]: Analyzing trace with hash 921047540, now seen corresponding path program 1 times [2019-09-10 07:39:09,224 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:39:09,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:09,225 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:09,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:09,225 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:39:09,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:09,340 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-10 07:39:09,340 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:39:09,341 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 07:39:09,341 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:39:09,341 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 07:39:09,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 07:39:09,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-10 07:39:09,342 INFO L87 Difference]: Start difference. First operand 3810 states and 5529 transitions. Second operand 6 states. [2019-09-10 07:39:09,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:39:09,483 INFO L93 Difference]: Finished difference Result 7610 states and 11157 transitions. [2019-09-10 07:39:09,483 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 07:39:09,483 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2019-09-10 07:39:09,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:39:09,500 INFO L225 Difference]: With dead ends: 7610 [2019-09-10 07:39:09,500 INFO L226 Difference]: Without dead ends: 7610 [2019-09-10 07:39:09,500 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-09-10 07:39:09,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7610 states. [2019-09-10 07:39:09,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7610 to 5162. [2019-09-10 07:39:09,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5162 states. [2019-09-10 07:39:09,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5162 states to 5162 states and 7501 transitions. [2019-09-10 07:39:09,662 INFO L78 Accepts]: Start accepts. Automaton has 5162 states and 7501 transitions. Word has length 80 [2019-09-10 07:39:09,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:39:09,662 INFO L475 AbstractCegarLoop]: Abstraction has 5162 states and 7501 transitions. [2019-09-10 07:39:09,662 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 07:39:09,662 INFO L276 IsEmpty]: Start isEmpty. Operand 5162 states and 7501 transitions. [2019-09-10 07:39:09,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-09-10 07:39:09,665 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:39:09,665 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:39:09,665 INFO L418 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:39:09,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:09,666 INFO L82 PathProgramCache]: Analyzing trace with hash 897302318, now seen corresponding path program 1 times [2019-09-10 07:39:09,666 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:39:09,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:09,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:09,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:09,668 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:39:09,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:09,802 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-10 07:39:09,802 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:39:09,803 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 07:39:09,803 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:39:09,803 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 07:39:09,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 07:39:09,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-09-10 07:39:09,804 INFO L87 Difference]: Start difference. First operand 5162 states and 7501 transitions. Second operand 6 states. [2019-09-10 07:39:09,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:39:09,914 INFO L93 Difference]: Finished difference Result 8962 states and 13129 transitions. [2019-09-10 07:39:09,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 07:39:09,915 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2019-09-10 07:39:09,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:39:09,933 INFO L225 Difference]: With dead ends: 8962 [2019-09-10 07:39:09,933 INFO L226 Difference]: Without dead ends: 8962 [2019-09-10 07:39:09,933 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-09-10 07:39:09,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8962 states. [2019-09-10 07:39:10,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8962 to 6514. [2019-09-10 07:39:10,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6514 states. [2019-09-10 07:39:10,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6514 states to 6514 states and 9473 transitions. [2019-09-10 07:39:10,052 INFO L78 Accepts]: Start accepts. Automaton has 6514 states and 9473 transitions. Word has length 80 [2019-09-10 07:39:10,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:39:10,053 INFO L475 AbstractCegarLoop]: Abstraction has 6514 states and 9473 transitions. [2019-09-10 07:39:10,053 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 07:39:10,053 INFO L276 IsEmpty]: Start isEmpty. Operand 6514 states and 9473 transitions. [2019-09-10 07:39:10,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-09-10 07:39:10,057 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:39:10,059 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:39:10,060 INFO L418 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:39:10,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:10,060 INFO L82 PathProgramCache]: Analyzing trace with hash 524776424, now seen corresponding path program 1 times [2019-09-10 07:39:10,060 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:39:10,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:10,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:10,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:10,062 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:39:10,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:10,172 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:10,173 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:39:10,173 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:39:10,174 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 81 with the following transitions: [2019-09-10 07:39:10,178 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [57], [60], [63], [66], [69], [72], [76], [79], [87], [89], [92], [95], [100], [102], [105], [113], [115], [118], [126], [128], [131], [138], [140], [143], [144], [146], [155], [158], [162], [171], [173], [176], [179], [181], [196], [198], [201], [204], [206], [214], [217], [223], [226], [229], [231], [246], [248], [251], [254], [256], [290], [291], [295], [296], [297] [2019-09-10 07:39:10,233 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:39:10,233 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:39:10,405 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:39:11,134 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:39:11,137 INFO L272 AbstractInterpreter]: Visited 74 different actions 601 times. Merged at 44 different actions 459 times. Widened at 16 different actions 63 times. Performed 2201 root evaluator evaluations with a maximum evaluation depth of 5. Performed 2201 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 59 fixpoints after 16 different actions. Largest state had 112 variables. [2019-09-10 07:39:11,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:11,143 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:39:11,143 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:39:11,143 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:39:11,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:11,164 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:39:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:11,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 5 conjunts are in the unsatisfiable core [2019-09-10 07:39:11,281 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:39:11,369 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-10 07:39:11,369 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:39:11,436 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-10 07:39:11,449 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2019-09-10 07:39:11,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5, 6] total 11 [2019-09-10 07:39:11,450 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:39:11,450 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 07:39:11,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 07:39:11,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-09-10 07:39:11,451 INFO L87 Difference]: Start difference. First operand 6514 states and 9473 transitions. Second operand 6 states. [2019-09-10 07:39:11,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:39:11,636 INFO L93 Difference]: Finished difference Result 10314 states and 15101 transitions. [2019-09-10 07:39:11,637 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 07:39:11,637 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2019-09-10 07:39:11,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:39:11,664 INFO L225 Difference]: With dead ends: 10314 [2019-09-10 07:39:11,664 INFO L226 Difference]: Without dead ends: 10314 [2019-09-10 07:39:11,665 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 153 SyntacticMatches, 3 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2019-09-10 07:39:11,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10314 states. [2019-09-10 07:39:11,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10314 to 7866. [2019-09-10 07:39:11,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7866 states. [2019-09-10 07:39:11,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7866 states to 7866 states and 11445 transitions. [2019-09-10 07:39:11,903 INFO L78 Accepts]: Start accepts. Automaton has 7866 states and 11445 transitions. Word has length 80 [2019-09-10 07:39:11,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:39:11,904 INFO L475 AbstractCegarLoop]: Abstraction has 7866 states and 11445 transitions. [2019-09-10 07:39:11,904 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 07:39:11,904 INFO L276 IsEmpty]: Start isEmpty. Operand 7866 states and 11445 transitions. [2019-09-10 07:39:11,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-09-10 07:39:11,909 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:39:11,909 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:39:11,910 INFO L418 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:39:11,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:11,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1732590227, now seen corresponding path program 1 times [2019-09-10 07:39:11,910 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:39:11,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:11,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:11,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:11,912 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:39:11,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:12,077 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 07:39:12,077 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:39:12,078 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:39:12,078 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 82 with the following transitions: [2019-09-10 07:39:12,078 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [57], [60], [63], [66], [69], [72], [76], [79], [87], [89], [92], [100], [102], [105], [113], [115], [118], [126], [128], [131], [134], [138], [140], [143], [144], [146], [148], [153], [155], [158], [171], [173], [176], [179], [181], [196], [198], [201], [204], [206], [221], [223], [226], [229], [231], [246], [248], [251], [254], [256], [290], [291], [295], [296], [297] [2019-09-10 07:39:12,086 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:39:12,087 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:39:12,129 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:39:12,642 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:39:12,642 INFO L272 AbstractInterpreter]: Visited 74 different actions 679 times. Merged at 44 different actions 506 times. Widened at 20 different actions 86 times. Performed 2540 root evaluator evaluations with a maximum evaluation depth of 6. Performed 2540 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 84 fixpoints after 22 different actions. Largest state had 112 variables. [2019-09-10 07:39:12,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:12,643 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:39:12,643 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:39:12,643 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:39:12,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:12,662 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:39:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:12,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 21 conjunts are in the unsatisfiable core [2019-09-10 07:39:12,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:39:12,826 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:12,826 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:39:12,857 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:39:12,934 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (3)] Exception during sending of exit command (exit): Stream closed [2019-09-10 07:39:12,947 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:39:12,947 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 12 [2019-09-10 07:39:12,948 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:39:12,948 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 07:39:12,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 07:39:12,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2019-09-10 07:39:12,949 INFO L87 Difference]: Start difference. First operand 7866 states and 11445 transitions. Second operand 8 states. [2019-09-10 07:39:13,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:39:13,165 INFO L93 Difference]: Finished difference Result 18120 states and 25619 transitions. [2019-09-10 07:39:13,166 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-10 07:39:13,166 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2019-09-10 07:39:13,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:39:13,214 INFO L225 Difference]: With dead ends: 18120 [2019-09-10 07:39:13,214 INFO L226 Difference]: Without dead ends: 18120 [2019-09-10 07:39:13,215 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 155 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=81, Unknown=0, NotChecked=0, Total=132 [2019-09-10 07:39:13,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18120 states. [2019-09-10 07:39:13,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18120 to 18090. [2019-09-10 07:39:13,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18090 states. [2019-09-10 07:39:13,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18090 states to 18090 states and 25585 transitions. [2019-09-10 07:39:13,670 INFO L78 Accepts]: Start accepts. Automaton has 18090 states and 25585 transitions. Word has length 81 [2019-09-10 07:39:13,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:39:13,671 INFO L475 AbstractCegarLoop]: Abstraction has 18090 states and 25585 transitions. [2019-09-10 07:39:13,671 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 07:39:13,671 INFO L276 IsEmpty]: Start isEmpty. Operand 18090 states and 25585 transitions. [2019-09-10 07:39:13,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-09-10 07:39:13,674 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:39:13,674 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:39:13,674 INFO L418 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:39:13,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:13,675 INFO L82 PathProgramCache]: Analyzing trace with hash -833435917, now seen corresponding path program 1 times [2019-09-10 07:39:13,675 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:39:13,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:13,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:13,677 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:13,677 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:39:13,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:13,934 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:13,934 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:39:13,934 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:39:13,935 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 83 with the following transitions: [2019-09-10 07:39:13,935 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [57], [60], [63], [66], [69], [72], [76], [79], [82], [87], [89], [92], [100], [102], [105], [113], [115], [118], [121], [126], [128], [131], [138], [140], [143], [144], [146], [155], [158], [162], [164], [167], [173], [176], [179], [181], [196], [198], [201], [204], [206], [221], [223], [226], [229], [231], [239], [242], [248], [251], [254], [256], [290], [291], [295], [296], [297] [2019-09-10 07:39:13,938 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:39:13,938 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:39:13,953 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:39:14,250 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:39:14,250 INFO L272 AbstractInterpreter]: Visited 76 different actions 606 times. Merged at 46 different actions 464 times. Widened at 15 different actions 66 times. Performed 2211 root evaluator evaluations with a maximum evaluation depth of 5. Performed 2211 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 55 fixpoints after 16 different actions. Largest state had 112 variables. [2019-09-10 07:39:14,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:14,251 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:39:14,251 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:39:14,251 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:39:14,266 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:14,266 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:39:14,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:14,370 INFO L256 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-10 07:39:14,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:39:14,523 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:39:14,910 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:14,911 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:39:15,069 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:39:15,191 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (4)] Exception during sending of exit command (exit): Stream closed [2019-09-10 07:39:15,198 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:39:15,199 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2019-09-10 07:39:15,199 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:39:15,200 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-10 07:39:15,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-10 07:39:15,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2019-09-10 07:39:15,201 INFO L87 Difference]: Start difference. First operand 18090 states and 25585 transitions. Second operand 17 states. [2019-09-10 07:39:15,368 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2019-09-10 07:39:16,313 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 27 [2019-09-10 07:39:18,576 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 31 [2019-09-10 07:39:19,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:39:19,662 INFO L93 Difference]: Finished difference Result 80132 states and 110776 transitions. [2019-09-10 07:39:19,662 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-09-10 07:39:19,662 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 82 [2019-09-10 07:39:19,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:39:19,840 INFO L225 Difference]: With dead ends: 80132 [2019-09-10 07:39:19,841 INFO L226 Difference]: Without dead ends: 80132 [2019-09-10 07:39:19,842 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 215 GetRequests, 152 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 995 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1016, Invalid=2890, Unknown=0, NotChecked=0, Total=3906 [2019-09-10 07:39:19,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80132 states. [2019-09-10 07:39:21,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80132 to 30754. [2019-09-10 07:39:21,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30754 states. [2019-09-10 07:39:21,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30754 states to 30754 states and 43141 transitions. [2019-09-10 07:39:21,510 INFO L78 Accepts]: Start accepts. Automaton has 30754 states and 43141 transitions. Word has length 82 [2019-09-10 07:39:21,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:39:21,510 INFO L475 AbstractCegarLoop]: Abstraction has 30754 states and 43141 transitions. [2019-09-10 07:39:21,510 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-10 07:39:21,510 INFO L276 IsEmpty]: Start isEmpty. Operand 30754 states and 43141 transitions. [2019-09-10 07:39:21,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-09-10 07:39:21,516 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:39:21,516 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:39:21,516 INFO L418 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:39:21,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:21,517 INFO L82 PathProgramCache]: Analyzing trace with hash -1229707033, now seen corresponding path program 1 times [2019-09-10 07:39:21,517 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:39:21,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:21,518 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:21,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:21,519 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:39:21,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:21,769 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:21,770 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:39:21,770 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:39:21,770 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 83 with the following transitions: [2019-09-10 07:39:21,772 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [57], [60], [63], [66], [69], [72], [76], [79], [82], [87], [89], [92], [95], [100], [102], [105], [113], [115], [118], [126], [128], [131], [138], [140], [143], [144], [146], [155], [158], [162], [171], [173], [176], [179], [181], [196], [198], [201], [204], [206], [214], [217], [223], [226], [229], [231], [239], [242], [248], [251], [254], [256], [290], [291], [295], [296], [297] [2019-09-10 07:39:21,780 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:39:21,780 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:39:21,813 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:39:22,101 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:39:22,103 INFO L272 AbstractInterpreter]: Visited 76 different actions 515 times. Merged at 46 different actions 383 times. Widened at 13 different actions 47 times. Performed 1951 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1951 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 47 fixpoints after 11 different actions. Largest state had 112 variables. [2019-09-10 07:39:22,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:22,103 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:39:22,103 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:39:22,103 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:39:22,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:22,122 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:39:22,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:22,211 INFO L256 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-10 07:39:22,217 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:39:22,380 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:39:23,545 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:23,545 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:39:24,069 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:24,073 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:39:24,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 28 [2019-09-10 07:39:24,073 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:39:24,074 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-10 07:39:24,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-10 07:39:24,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=679, Unknown=0, NotChecked=0, Total=756 [2019-09-10 07:39:24,075 INFO L87 Difference]: Start difference. First operand 30754 states and 43141 transitions. Second operand 19 states. [2019-09-10 07:39:24,739 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-09-10 07:39:25,030 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-09-10 07:39:25,404 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2019-09-10 07:39:25,781 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2019-09-10 07:39:26,128 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:39:26,558 WARN L188 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-10 07:39:27,128 WARN L188 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-10 07:39:27,481 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-10 07:39:27,814 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2019-09-10 07:39:28,228 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-10 07:39:28,659 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2019-09-10 07:39:29,096 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2019-09-10 07:39:29,434 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:39:29,860 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-10 07:39:30,218 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-10 07:39:30,688 WARN L188 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2019-09-10 07:39:31,118 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:39:31,470 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-10 07:39:31,934 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:39:32,425 WARN L188 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2019-09-10 07:39:32,840 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 07:39:33,221 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2019-09-10 07:39:33,533 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-10 07:39:33,954 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-10 07:39:34,345 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2019-09-10 07:39:34,764 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2019-09-10 07:39:35,116 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-10 07:39:35,525 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-10 07:39:35,941 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-10 07:39:36,322 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 07:39:36,684 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:39:37,110 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-10 07:39:37,516 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2019-09-10 07:39:37,985 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 07:39:39,028 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 77 [2019-09-10 07:39:39,440 WARN L188 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2019-09-10 07:39:39,923 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-10 07:39:40,317 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 07:39:40,739 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-10 07:39:41,084 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2019-09-10 07:39:41,440 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2019-09-10 07:39:41,772 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2019-09-10 07:39:42,108 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 77 [2019-09-10 07:39:42,396 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2019-09-10 07:39:42,752 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2019-09-10 07:39:43,063 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-10 07:39:43,391 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2019-09-10 07:39:43,694 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:39:44,080 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-10 07:39:44,442 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-10 07:39:44,763 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-10 07:39:45,123 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 07:39:45,447 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-10 07:39:45,799 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2019-09-10 07:39:46,188 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-10 07:39:46,599 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 07:39:47,044 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 07:39:47,440 WARN L188 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-10 07:39:47,747 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:39:48,265 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2019-09-10 07:39:48,652 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2019-09-10 07:39:49,043 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-10 07:39:49,443 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 86 [2019-09-10 07:39:49,778 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2019-09-10 07:39:50,082 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2019-09-10 07:39:50,326 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-10 07:39:50,720 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 07:39:51,162 WARN L188 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-10 07:39:51,391 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:39:51,735 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:39:52,087 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-10 07:39:52,409 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2019-09-10 07:39:52,668 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2019-09-10 07:39:53,001 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-10 07:39:53,249 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 07:39:53,654 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2019-09-10 07:39:54,056 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2019-09-10 07:39:54,437 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-10 07:39:54,881 WARN L188 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 86 [2019-09-10 07:39:55,140 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-10 07:39:55,479 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2019-09-10 07:39:55,805 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-10 07:39:56,145 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:39:56,520 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-10 07:39:56,975 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2019-09-10 07:39:57,322 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:39:57,868 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-10 07:39:58,301 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-10 07:39:58,686 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2019-09-10 07:39:59,031 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:39:59,313 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2019-09-10 07:39:59,523 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:39:59,783 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2019-09-10 07:39:59,983 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-10 07:40:00,375 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:40:00,807 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2019-09-10 07:40:01,279 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2019-09-10 07:40:01,636 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-10 07:40:02,116 WARN L188 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2019-09-10 07:40:02,518 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2019-09-10 07:40:02,853 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:40:03,081 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:40:03,315 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-10 07:40:03,729 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-10 07:40:04,262 WARN L188 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 87 [2019-09-10 07:40:04,516 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-10 07:40:04,762 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-10 07:40:05,072 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-10 07:40:05,326 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 07:40:05,688 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-10 07:40:06,057 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2019-09-10 07:40:06,465 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-10 07:40:06,760 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 07:40:07,057 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2019-09-10 07:40:07,473 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2019-09-10 07:40:07,904 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83 [2019-09-10 07:40:08,319 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-10 07:40:08,774 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 86 [2019-09-10 07:40:09,261 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 86 [2019-09-10 07:40:09,791 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2019-09-10 07:40:10,830 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2019-09-10 07:40:11,102 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-09-10 07:40:11,352 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2019-09-10 07:40:11,569 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-10 07:40:11,826 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-10 07:40:12,132 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2019-09-10 07:40:12,410 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-10 07:40:12,686 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 07:40:12,938 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-10 07:40:13,218 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-10 07:40:13,737 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-10 07:40:14,073 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-10 07:40:14,381 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-09-10 07:40:14,562 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2019-09-10 07:40:14,938 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-10 07:40:15,231 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 07:40:15,486 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 07:40:15,789 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2019-09-10 07:40:15,961 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2019-09-10 07:40:16,329 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-10 07:40:16,724 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2019-09-10 07:40:16,935 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2019-09-10 07:40:17,191 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-10 07:40:17,971 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-10 07:40:18,291 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 07:40:18,547 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 07:40:18,826 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-10 07:40:19,258 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-10 07:40:19,503 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 07:40:19,814 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2019-09-10 07:40:20,107 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2019-09-10 07:40:20,274 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2019-09-10 07:40:20,651 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-10 07:40:21,348 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-10 07:40:21,646 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2019-09-10 07:40:21,915 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-10 07:40:22,239 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-10 07:40:22,556 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-10 07:40:22,788 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-10 07:40:23,001 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2019-09-10 07:40:23,401 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-10 07:40:23,763 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2019-09-10 07:40:24,577 WARN L188 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-10 07:40:24,785 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2019-09-10 07:40:25,027 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 07:40:25,284 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 07:40:25,799 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2019-09-10 07:40:26,082 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-10 07:40:26,368 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-10 07:40:26,684 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 07:40:26,913 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 07:40:27,165 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-10 07:40:27,413 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 07:40:27,667 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 07:40:27,909 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 07:40:28,385 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2019-09-10 07:40:28,662 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-10 07:40:29,078 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2019-09-10 07:40:29,344 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-10 07:40:29,867 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-10 07:40:30,053 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2019-09-10 07:40:30,472 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-10 07:40:31,056 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-10 07:40:31,313 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-10 07:40:31,528 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 07:40:31,807 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-10 07:40:32,114 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 07:40:32,367 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 07:40:32,525 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2019-09-10 07:40:32,829 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-10 07:40:33,128 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 07:40:33,384 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 07:40:33,624 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 07:40:33,870 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-10 07:40:34,314 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 07:40:34,575 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 07:40:34,747 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-10 07:40:35,234 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2019-09-10 07:40:35,543 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-09-10 07:40:35,827 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 07:40:36,133 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-09-10 07:40:36,537 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-10 07:40:36,800 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2019-09-10 07:40:37,127 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-10 07:40:37,744 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-10 07:40:37,991 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-10 07:40:38,223 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:40:38,536 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-10 07:40:38,798 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 07:40:39,013 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 07:40:39,290 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-10 07:40:39,647 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2019-09-10 07:40:39,937 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:40:40,193 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 07:40:40,359 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-10 07:40:40,708 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-09-10 07:40:40,985 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 07:40:41,314 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-10 07:40:41,577 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-10 07:40:42,243 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-10 07:40:42,569 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 07:40:42,909 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-09-10 07:40:43,232 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-10 07:40:43,645 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2019-09-10 07:40:44,055 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-10 07:40:44,317 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:40:44,583 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 07:40:44,785 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2019-09-10 07:40:45,318 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2019-09-10 07:40:45,586 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:40:45,876 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 07:40:46,292 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-10 07:40:46,716 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2019-09-10 07:40:48,369 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-09-10 07:40:49,080 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2019-09-10 07:40:49,398 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2019-09-10 07:40:49,954 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-09-10 07:40:50,195 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-09-10 07:40:50,387 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2019-09-10 07:40:51,026 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 07:40:51,489 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2019-09-10 07:40:52,002 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 07:40:52,629 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 07:40:52,906 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 07:40:53,165 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:40:53,851 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 07:40:54,138 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2019-09-10 07:40:54,347 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-10 07:40:54,532 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 07:40:54,858 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:40:55,084 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-10 07:40:55,504 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2019-09-10 07:40:55,869 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-10 07:40:56,062 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2019-09-10 07:40:56,418 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 07:40:56,692 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-10 07:40:56,944 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-10 07:40:57,150 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2019-09-10 07:40:57,590 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 07:40:57,805 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-10 07:40:58,150 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-10 07:40:58,353 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 07:40:58,557 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-10 07:40:58,757 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-09-10 07:40:59,047 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-10 07:40:59,225 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2019-09-10 07:40:59,602 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-10 07:40:59,999 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-09-10 07:41:00,430 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-09-10 07:41:00,689 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 07:41:01,038 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-09-10 07:41:01,374 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2019-09-10 07:41:01,698 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 07:41:02,012 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-10 07:41:02,435 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2019-09-10 07:41:02,954 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-10 07:41:03,412 WARN L188 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2019-09-10 07:41:03,685 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-10 07:41:03,933 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-09-10 07:41:04,283 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-10 07:41:04,489 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2019-09-10 07:41:04,688 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-10 07:41:04,893 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-10 07:41:05,229 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-10 07:41:05,497 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-10 07:41:05,728 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-10 07:41:05,986 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 07:41:06,236 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-10 07:41:06,475 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 07:41:06,715 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:41:06,947 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 07:41:07,148 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2019-09-10 07:41:07,652 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 07:41:07,941 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 07:41:08,241 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 07:41:08,492 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:41:08,717 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-10 07:41:09,065 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-10 07:41:09,437 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 07:41:09,724 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 07:41:09,972 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 07:41:10,317 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:41:10,517 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 07:41:10,887 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-10 07:41:11,291 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2019-09-10 07:41:11,735 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-10 07:41:12,013 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:41:12,330 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-10 07:41:12,720 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-10 07:41:12,958 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-10 07:41:13,270 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-10 07:41:13,713 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 07:41:14,151 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:41:14,440 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-10 07:41:14,748 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-10 07:41:15,007 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 07:41:15,260 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:41:15,566 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:41:15,849 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:41:17,385 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 07:41:17,688 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-10 07:41:18,126 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-10 07:41:18,469 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2019-09-10 07:41:19,099 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-10 07:41:19,439 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2019-09-10 07:41:19,984 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 07:41:20,368 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-10 07:41:20,650 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:41:20,891 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-10 07:41:21,945 WARN L188 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:41:22,223 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-10 07:41:22,785 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-10 07:41:23,343 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-10 07:41:23,587 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2019-09-10 07:41:23,942 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2019-09-10 07:41:24,322 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2019-09-10 07:41:24,821 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-10 07:41:25,244 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2019-09-10 07:41:25,676 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 07:41:25,981 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:41:26,263 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-10 07:41:26,697 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2019-09-10 07:41:27,101 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-10 07:41:27,366 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-10 07:41:27,583 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-10 07:41:28,200 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-10 07:41:28,650 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-10 07:41:28,913 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-10 07:41:29,229 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:41:29,648 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 07:41:30,232 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-10 07:41:30,481 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-10 07:41:30,931 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-10 07:41:31,264 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-10 07:41:31,593 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:41:32,046 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2019-09-10 07:41:32,439 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-10 07:41:34,601 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2019-09-10 07:41:34,876 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-10 07:41:35,222 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-10 07:41:35,592 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2019-09-10 07:41:36,385 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-10 07:41:36,685 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-10 07:41:37,070 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2019-09-10 07:41:37,379 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2019-09-10 07:41:37,597 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-09-10 07:41:37,807 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2019-09-10 07:41:38,161 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-09-10 07:41:38,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:41:38,275 INFO L93 Difference]: Finished difference Result 406905 states and 560170 transitions. [2019-09-10 07:41:38,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 431 states. [2019-09-10 07:41:38,275 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 82 [2019-09-10 07:41:38,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:41:38,951 INFO L225 Difference]: With dead ends: 406905 [2019-09-10 07:41:38,951 INFO L226 Difference]: Without dead ends: 406905 [2019-09-10 07:41:38,989 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 603 GetRequests, 133 SyntacticMatches, 15 SemanticMatches, 455 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103334 ImplicationChecksByTransitivity, 117.2s TimeCoverageRelationStatistics Valid=28440, Invalid=179952, Unknown=0, NotChecked=0, Total=208392 [2019-09-10 07:41:39,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406905 states. [2019-09-10 07:41:42,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406905 to 115734. [2019-09-10 07:41:42,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115734 states. [2019-09-10 07:41:42,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115734 states to 115734 states and 163635 transitions. [2019-09-10 07:41:42,293 INFO L78 Accepts]: Start accepts. Automaton has 115734 states and 163635 transitions. Word has length 82 [2019-09-10 07:41:42,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:41:42,293 INFO L475 AbstractCegarLoop]: Abstraction has 115734 states and 163635 transitions. [2019-09-10 07:41:42,294 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-10 07:41:42,294 INFO L276 IsEmpty]: Start isEmpty. Operand 115734 states and 163635 transitions. [2019-09-10 07:41:42,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-10 07:41:42,299 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:41:42,300 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:41:42,300 INFO L418 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:41:42,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:41:42,300 INFO L82 PathProgramCache]: Analyzing trace with hash -678407881, now seen corresponding path program 1 times [2019-09-10 07:41:42,301 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:41:42,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:41:42,302 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:41:42,302 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:41:42,302 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:41:42,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:41:42,341 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-10 07:41:42,342 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:41:42,342 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:41:42,342 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:41:42,342 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:41:42,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:41:42,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:41:42,343 INFO L87 Difference]: Start difference. First operand 115734 states and 163635 transitions. Second operand 3 states. [2019-09-10 07:41:42,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:41:42,598 INFO L93 Difference]: Finished difference Result 81180 states and 113719 transitions. [2019-09-10 07:41:42,598 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:41:42,598 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2019-09-10 07:41:42,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:41:42,700 INFO L225 Difference]: With dead ends: 81180 [2019-09-10 07:41:42,700 INFO L226 Difference]: Without dead ends: 81180 [2019-09-10 07:41:42,700 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 [2019-09-10 07:41:42,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81180 states. [2019-09-10 07:41:43,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81180 to 81000. [2019-09-10 07:41:43,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81000 states. [2019-09-10 07:41:43,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81000 states to 81000 states and 113539 transitions. [2019-09-10 07:41:43,428 INFO L78 Accepts]: Start accepts. Automaton has 81000 states and 113539 transitions. Word has length 83 [2019-09-10 07:41:43,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:41:43,428 INFO L475 AbstractCegarLoop]: Abstraction has 81000 states and 113539 transitions. [2019-09-10 07:41:43,428 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:41:43,428 INFO L276 IsEmpty]: Start isEmpty. Operand 81000 states and 113539 transitions. [2019-09-10 07:41:43,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-10 07:41:43,431 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:41:43,431 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:41:43,432 INFO L418 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:41:43,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:41:43,432 INFO L82 PathProgramCache]: Analyzing trace with hash 2096755563, now seen corresponding path program 1 times [2019-09-10 07:41:43,432 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:41:43,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:41:43,433 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:41:43,433 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:41:43,433 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:41:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:41:43,631 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:41:43,631 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:41:43,632 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:41:43,632 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 84 with the following transitions: [2019-09-10 07:41:43,633 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [57], [60], [63], [66], [69], [72], [76], [79], [82], [87], [89], [92], [95], [98], [100], [102], [105], [108], [113], [115], [118], [126], [128], [131], [138], [140], [143], [144], [146], [155], [158], [162], [171], [173], [176], [179], [181], [189], [192], [198], [201], [204], [206], [223], [226], [229], [231], [239], [242], [248], [251], [254], [256], [290], [291], [295], [296], [297] [2019-09-10 07:41:43,635 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:41:43,635 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:41:43,653 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:41:44,065 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:41:44,066 INFO L272 AbstractInterpreter]: Visited 77 different actions 607 times. Merged at 47 different actions 468 times. Widened at 15 different actions 63 times. Performed 2228 root evaluator evaluations with a maximum evaluation depth of 5. Performed 2228 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 57 fixpoints after 15 different actions. Largest state had 112 variables. [2019-09-10 07:41:44,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:41:44,066 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:41:44,066 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:41:44,067 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:41:44,098 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:41:44,098 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:41:44,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:41:44,239 INFO L256 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 16 conjunts are in the unsatisfiable core [2019-09-10 07:41:44,246 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:41:44,390 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:41:44,671 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:41:44,671 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:41:47,109 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:41:47,222 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:41:47,237 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:41:47,237 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2019-09-10 07:41:47,237 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:41:47,239 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-10 07:41:47,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-10 07:41:47,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2019-09-10 07:41:47,240 INFO L87 Difference]: Start difference. First operand 81000 states and 113539 transitions. Second operand 17 states. [2019-09-10 07:41:50,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:41:50,360 INFO L93 Difference]: Finished difference Result 447123 states and 613641 transitions. [2019-09-10 07:41:50,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-09-10 07:41:50,361 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 83 [2019-09-10 07:41:50,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:41:50,930 INFO L225 Difference]: With dead ends: 447123 [2019-09-10 07:41:50,930 INFO L226 Difference]: Without dead ends: 447123 [2019-09-10 07:41:50,931 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 154 SyntacticMatches, 2 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=808, Invalid=2272, Unknown=0, NotChecked=0, Total=3080 [2019-09-10 07:41:51,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447123 states. [2019-09-10 07:41:58,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447123 to 196862. [2019-09-10 07:41:58,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 196862 states. [2019-09-10 07:41:58,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196862 states to 196862 states and 274693 transitions. [2019-09-10 07:41:58,536 INFO L78 Accepts]: Start accepts. Automaton has 196862 states and 274693 transitions. Word has length 83 [2019-09-10 07:41:58,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:41:58,536 INFO L475 AbstractCegarLoop]: Abstraction has 196862 states and 274693 transitions. [2019-09-10 07:41:58,536 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-10 07:41:58,536 INFO L276 IsEmpty]: Start isEmpty. Operand 196862 states and 274693 transitions. [2019-09-10 07:41:58,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-10 07:41:58,540 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:41:58,541 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:41:58,541 INFO L418 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:41:58,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:41:58,541 INFO L82 PathProgramCache]: Analyzing trace with hash -100457125, now seen corresponding path program 1 times [2019-09-10 07:41:58,541 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:41:58,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:41:58,542 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:41:58,542 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:41:58,543 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:41:58,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:41:58,739 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:41:58,740 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:41:58,740 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:41:58,740 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 84 with the following transitions: [2019-09-10 07:41:58,740 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [57], [60], [63], [66], [69], [72], [76], [79], [87], [89], [92], [95], [98], [100], [102], [105], [108], [113], [115], [118], [121], [126], [128], [131], [138], [140], [143], [144], [146], [155], [158], [162], [164], [167], [173], [176], [179], [181], [189], [192], [198], [201], [204], [206], [223], [226], [229], [231], [246], [248], [251], [254], [256], [290], [291], [295], [296], [297] [2019-09-10 07:41:58,742 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:41:58,742 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:41:58,756 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:41:59,063 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:41:59,064 INFO L272 AbstractInterpreter]: Visited 77 different actions 645 times. Merged at 47 different actions 502 times. Widened at 17 different actions 73 times. Performed 2268 root evaluator evaluations with a maximum evaluation depth of 5. Performed 2268 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 56 fixpoints after 16 different actions. Largest state had 112 variables. [2019-09-10 07:41:59,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:41:59,065 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:41:59,065 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:41:59,065 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:41:59,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:41:59,084 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:41:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:41:59,180 INFO L256 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-10 07:41:59,183 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:41:59,276 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:41:59,454 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:41:59,455 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:41:59,581 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:41:59,678 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:41:59,693 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:41:59,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2019-09-10 07:41:59,693 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:41:59,694 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-10 07:41:59,694 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-10 07:41:59,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2019-09-10 07:41:59,695 INFO L87 Difference]: Start difference. First operand 196862 states and 274693 transitions. Second operand 17 states. [2019-09-10 07:42:04,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:42:04,970 INFO L93 Difference]: Finished difference Result 1024906 states and 1412878 transitions. [2019-09-10 07:42:04,970 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-09-10 07:42:04,971 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 83 [2019-09-10 07:42:04,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:42:06,385 INFO L225 Difference]: With dead ends: 1024906 [2019-09-10 07:42:06,385 INFO L226 Difference]: Without dead ends: 1024906 [2019-09-10 07:42:06,386 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 154 SyntacticMatches, 2 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 683 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=716, Invalid=2040, Unknown=0, NotChecked=0, Total=2756 [2019-09-10 07:42:07,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1024906 states. [2019-09-10 07:42:20,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1024906 to 415110. [2019-09-10 07:42:20,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415110 states. [2019-09-10 07:42:20,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415110 states to 415110 states and 574770 transitions. [2019-09-10 07:42:20,788 INFO L78 Accepts]: Start accepts. Automaton has 415110 states and 574770 transitions. Word has length 83 [2019-09-10 07:42:20,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:42:20,789 INFO L475 AbstractCegarLoop]: Abstraction has 415110 states and 574770 transitions. [2019-09-10 07:42:20,789 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-10 07:42:20,789 INFO L276 IsEmpty]: Start isEmpty. Operand 415110 states and 574770 transitions. [2019-09-10 07:42:20,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-10 07:42:20,796 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:42:20,797 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:42:20,797 INFO L418 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:42:20,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:42:20,797 INFO L82 PathProgramCache]: Analyzing trace with hash -91525643, now seen corresponding path program 1 times [2019-09-10 07:42:20,797 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:42:20,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:42:20,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:42:20,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:42:20,799 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:42:20,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:42:20,843 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-10 07:42:20,844 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:42:20,844 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:42:20,844 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:42:20,844 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:42:20,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:42:20,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:42:20,845 INFO L87 Difference]: Start difference. First operand 415110 states and 574770 transitions. Second operand 3 states. [2019-09-10 07:42:26,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:42:26,856 INFO L93 Difference]: Finished difference Result 347374 states and 476925 transitions. [2019-09-10 07:42:26,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:42:26,856 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2019-09-10 07:42:26,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:42:27,259 INFO L225 Difference]: With dead ends: 347374 [2019-09-10 07:42:27,259 INFO L226 Difference]: Without dead ends: 347374 [2019-09-10 07:42:27,260 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 [2019-09-10 07:42:27,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347374 states. [2019-09-10 07:42:30,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347374 to 347374. [2019-09-10 07:42:30,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347374 states. [2019-09-10 07:42:31,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347374 states to 347374 states and 476925 transitions. [2019-09-10 07:42:31,924 INFO L78 Accepts]: Start accepts. Automaton has 347374 states and 476925 transitions. Word has length 84 [2019-09-10 07:42:31,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:42:31,924 INFO L475 AbstractCegarLoop]: Abstraction has 347374 states and 476925 transitions. [2019-09-10 07:42:31,924 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:42:31,924 INFO L276 IsEmpty]: Start isEmpty. Operand 347374 states and 476925 transitions. [2019-09-10 07:42:31,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-10 07:42:31,928 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:42:31,929 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:42:31,929 INFO L418 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:42:31,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:42:31,929 INFO L82 PathProgramCache]: Analyzing trace with hash -474576096, now seen corresponding path program 1 times [2019-09-10 07:42:31,929 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:42:31,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:42:31,931 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:42:31,931 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:42:31,931 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:42:31,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:42:31,978 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:42:31,979 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:42:31,979 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:42:31,979 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:42:31,979 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:42:31,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:42:31,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:42:31,980 INFO L87 Difference]: Start difference. First operand 347374 states and 476925 transitions. Second operand 3 states. [2019-09-10 07:42:32,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:42:32,369 INFO L93 Difference]: Finished difference Result 178648 states and 245648 transitions. [2019-09-10 07:42:32,369 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:42:32,370 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2019-09-10 07:42:32,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:42:32,552 INFO L225 Difference]: With dead ends: 178648 [2019-09-10 07:42:32,552 INFO L226 Difference]: Without dead ends: 178648 [2019-09-10 07:42:32,552 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 [2019-09-10 07:42:32,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178648 states. [2019-09-10 07:42:38,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178648 to 132190. [2019-09-10 07:42:38,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132190 states. [2019-09-10 07:42:38,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132190 states to 132190 states and 181196 transitions. [2019-09-10 07:42:38,277 INFO L78 Accepts]: Start accepts. Automaton has 132190 states and 181196 transitions. Word has length 84 [2019-09-10 07:42:38,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:42:38,277 INFO L475 AbstractCegarLoop]: Abstraction has 132190 states and 181196 transitions. [2019-09-10 07:42:38,277 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:42:38,277 INFO L276 IsEmpty]: Start isEmpty. Operand 132190 states and 181196 transitions. [2019-09-10 07:42:38,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-10 07:42:38,280 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:42:38,281 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:42:38,281 INFO L418 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:42:38,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:42:38,281 INFO L82 PathProgramCache]: Analyzing trace with hash 261511392, now seen corresponding path program 1 times [2019-09-10 07:42:38,281 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:42:38,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:42:38,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:42:38,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:42:38,282 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:42:38,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:42:40,090 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:42:40,090 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:42:40,090 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:42:40,091 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 85 with the following transitions: [2019-09-10 07:42:40,091 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [57], [60], [63], [66], [69], [72], [76], [79], [82], [85], [87], [89], [92], [95], [98], [100], [102], [105], [108], [113], [115], [118], [121], [126], [128], [131], [138], [140], [143], [144], [146], [155], [158], [162], [164], [167], [173], [176], [179], [181], [189], [192], [198], [201], [204], [206], [223], [226], [229], [231], [248], [251], [254], [256], [290], [291], [295], [296], [297] [2019-09-10 07:42:40,094 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:42:40,094 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:42:40,109 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:42:40,396 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:42:40,397 INFO L272 AbstractInterpreter]: Visited 78 different actions 602 times. Merged at 48 different actions 465 times. Widened at 14 different actions 57 times. Performed 2184 root evaluator evaluations with a maximum evaluation depth of 5. Performed 2184 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 53 fixpoints after 16 different actions. Largest state had 112 variables. [2019-09-10 07:42:40,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:42:40,397 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:42:40,397 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:42:40,397 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:42:40,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:42:40,418 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:42:40,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:42:40,503 INFO L256 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 24 conjunts are in the unsatisfiable core [2019-09-10 07:42:40,505 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:42:40,764 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:42,256 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:42:42,257 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:42:42,944 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:42:42,954 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:42:42,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 12, 12] total 45 [2019-09-10 07:42:42,955 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:42:42,955 INFO L454 AbstractCegarLoop]: Interpolant automaton has 35 states [2019-09-10 07:42:42,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2019-09-10 07:42:42,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=141, Invalid=1839, Unknown=0, NotChecked=0, Total=1980 [2019-09-10 07:42:42,956 INFO L87 Difference]: Start difference. First operand 132190 states and 181196 transitions. Second operand 35 states. [2019-09-10 07:42:43,156 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2019-09-10 07:42:44,226 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2019-09-10 07:42:44,424 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2019-09-10 07:42:44,748 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2019-09-10 07:42:44,996 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2019-09-10 07:42:45,312 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2019-09-10 07:42:45,627 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 73 [2019-09-10 07:42:45,996 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 79 [2019-09-10 07:42:46,458 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 93 [2019-09-10 07:42:47,103 WARN L188 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 109 [2019-09-10 07:42:47,810 WARN L188 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 127 [2019-09-10 07:42:48,237 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 89 [2019-09-10 07:42:48,775 WARN L188 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 107 [2019-09-10 07:42:49,878 WARN L188 SmtUtils]: Spent 918.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 145 [2019-09-10 07:42:50,920 WARN L188 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 150 [2019-09-10 07:42:51,544 WARN L188 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 125 [2019-09-10 07:42:51,972 WARN L188 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 99 [2019-09-10 07:42:52,646 WARN L188 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 130 [2019-09-10 07:42:53,006 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2019-09-10 07:42:53,302 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2019-09-10 07:42:53,735 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 99 [2019-09-10 07:42:54,060 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2019-09-10 07:42:54,386 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:42:54,852 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 96 [2019-09-10 07:42:55,199 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:42:55,460 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 07:42:55,661 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-10 07:42:55,982 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2019-09-10 07:42:56,187 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-09-10 07:42:56,348 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2019-09-10 07:42:56,666 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:42:56,939 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:42:57,270 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2019-09-10 07:42:57,784 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 96 [2019-09-10 07:42:58,216 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 96 [2019-09-10 07:42:58,494 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:42:58,731 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 07:42:58,958 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-10 07:42:59,263 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:42:59,759 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2019-09-10 07:43:00,156 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2019-09-10 07:43:00,616 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 07:43:01,016 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 89 [2019-09-10 07:43:01,326 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2019-09-10 07:43:01,819 WARN L188 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 96 [2019-09-10 07:43:01,986 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2019-09-10 07:43:02,232 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-10 07:43:02,480 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2019-09-10 07:43:02,749 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2019-09-10 07:43:03,356 WARN L188 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 108 [2019-09-10 07:43:03,762 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2019-09-10 07:43:04,151 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:43:06,604 WARN L188 SmtUtils]: Spent 2.37 s on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-10 07:43:06,850 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2019-09-10 07:43:07,187 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 77 [2019-09-10 07:43:07,562 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-10 07:43:07,764 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-09-10 07:43:08,137 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2019-09-10 07:43:08,528 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:43:09,021 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 07:43:09,442 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2019-09-10 07:43:09,971 WARN L188 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 96 [2019-09-10 07:43:10,405 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 91 [2019-09-10 07:43:10,716 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2019-09-10 07:43:11,022 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-10 07:43:11,469 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:43:11,838 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:43:12,270 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 89 [2019-09-10 07:43:12,879 WARN L188 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 108 [2019-09-10 07:43:13,126 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2019-09-10 07:43:13,698 WARN L188 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2019-09-10 07:43:14,098 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:43:14,551 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2019-09-10 07:43:14,976 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2019-09-10 07:43:15,357 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2019-09-10 07:43:15,560 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2019-09-10 07:43:16,131 WARN L188 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 98 [2019-09-10 07:43:16,439 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-10 07:43:16,964 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 96 [2019-09-10 07:43:17,430 WARN L188 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 96 [2019-09-10 07:43:17,882 WARN L188 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 07:43:18,183 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:43:18,452 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 07:43:18,886 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-10 07:43:19,108 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-10 07:43:19,630 WARN L188 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 98 [2019-09-10 07:43:19,951 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 07:43:20,433 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2019-09-10 07:43:20,669 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-10 07:43:21,021 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2019-09-10 07:43:21,200 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-10 07:43:21,644 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 92 [2019-09-10 07:43:21,883 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2019-09-10 07:43:22,563 WARN L188 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 110 [2019-09-10 07:43:22,939 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2019-09-10 07:43:23,223 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-10 07:43:23,820 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 101 [2019-09-10 07:43:24,122 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2019-09-10 07:43:24,493 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 86 [2019-09-10 07:43:24,745 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-10 07:43:25,141 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2019-09-10 07:43:25,340 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-10 07:43:25,700 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2019-09-10 07:43:25,884 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2019-09-10 07:43:26,107 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-09-10 07:43:26,981 WARN L188 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 99 [2019-09-10 07:43:27,240 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2019-09-10 07:43:27,706 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 99 [2019-09-10 07:43:27,921 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2019-09-10 07:43:28,210 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 07:43:28,389 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-09-10 07:43:28,686 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2019-09-10 07:43:28,879 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2019-09-10 07:43:29,145 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 07:43:29,879 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-10 07:43:30,341 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2019-09-10 07:43:30,541 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-10 07:43:31,576 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-10 07:43:32,243 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 86 [2019-09-10 07:43:32,476 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2019-09-10 07:43:33,038 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 59 [2019-09-10 07:43:33,368 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2019-09-10 07:43:33,685 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-10 07:43:34,286 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-10 07:43:34,879 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 92 [2019-09-10 07:43:35,435 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 92 [2019-09-10 07:43:35,922 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2019-09-10 07:43:37,047 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2019-09-10 07:43:37,403 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2019-09-10 07:43:37,801 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:43:38,128 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 07:43:38,523 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2019-09-10 07:43:38,906 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2019-09-10 07:43:39,352 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 07:43:39,865 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 94 [2019-09-10 07:43:40,198 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 07:43:40,512 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2019-09-10 07:43:40,809 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2019-09-10 07:43:41,172 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2019-09-10 07:43:41,495 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2019-09-10 07:43:42,699 WARN L188 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 102 [2019-09-10 07:43:43,144 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 07:43:43,348 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-09-10 07:43:43,584 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2019-09-10 07:43:43,889 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 07:43:44,190 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2019-09-10 07:43:44,405 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2019-09-10 07:43:44,835 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 85 [2019-09-10 07:43:45,048 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 56 [2019-09-10 07:43:45,264 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2019-09-10 07:43:45,618 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-09-10 07:43:45,956 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-10 07:43:46,167 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-10 07:43:46,720 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2019-09-10 07:43:47,187 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 89 [2019-09-10 07:43:47,438 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-09-10 07:43:47,689 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-09-10 07:43:47,996 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-10 07:43:48,157 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-10 07:43:48,596 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-10 07:43:49,169 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2019-09-10 07:43:49,617 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2019-09-10 07:43:49,849 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-10 07:43:50,474 WARN L188 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 104 [2019-09-10 07:43:50,779 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-10 07:43:51,112 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2019-09-10 07:43:51,313 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-10 07:43:51,484 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-09-10 07:43:51,695 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2019-09-10 07:43:51,870 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2019-09-10 07:43:52,156 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2019-09-10 07:43:52,350 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2019-09-10 07:43:52,641 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60 [2019-09-10 07:43:52,987 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 07:43:53,519 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 92 [2019-09-10 07:43:53,919 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:43:54,172 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-10 07:43:54,441 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 07:43:54,963 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2019-09-10 07:43:55,417 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 93 [2019-09-10 07:43:55,937 WARN L188 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 96 [2019-09-10 07:43:56,256 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-10 07:43:56,651 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 93 [2019-09-10 07:43:57,048 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2019-09-10 07:43:57,419 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-10 07:43:57,907 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 07:43:58,201 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2019-09-10 07:43:58,522 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2019-09-10 07:43:58,856 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2019-09-10 07:43:59,425 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 102 [2019-09-10 07:43:59,585 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-09-10 07:44:00,009 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-10 07:44:00,278 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-09-10 07:44:00,499 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 07:44:00,720 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2019-09-10 07:44:01,161 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 88 [2019-09-10 07:44:01,364 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2019-09-10 07:44:01,955 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-10 07:44:02,225 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-10 07:44:02,594 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 07:44:02,923 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 07:44:03,274 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2019-09-10 07:44:03,650 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2019-09-10 07:44:04,019 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2019-09-10 07:44:04,255 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-10 07:44:04,471 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2019-09-10 07:44:04,672 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2019-09-10 07:44:05,239 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2019-09-10 07:44:05,602 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 07:44:06,345 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 07:44:06,655 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2019-09-10 07:44:07,104 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 98 [2019-09-10 07:44:07,647 WARN L188 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 94 [2019-09-10 07:44:07,898 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2019-09-10 07:44:08,486 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 07:44:08,836 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-10 07:44:09,473 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 75 [2019-09-10 07:44:09,913 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 85 [2019-09-10 07:44:10,520 WARN L188 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 110 [2019-09-10 07:44:10,873 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 85 [2019-09-10 07:44:11,081 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2019-09-10 07:44:11,568 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 67 [2019-09-10 07:44:12,068 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 78 [2019-09-10 07:44:12,515 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 97 [2019-09-10 07:44:12,959 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 101 [2019-09-10 07:44:13,347 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 98 [2019-09-10 07:44:13,811 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 104 [2019-09-10 07:44:14,077 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-10 07:44:14,495 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 101 [2019-09-10 07:44:14,938 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 81 [2019-09-10 07:44:15,249 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 70 [2019-09-10 07:44:15,545 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 73 [2019-09-10 07:44:15,849 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-09-10 07:44:16,344 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2019-09-10 07:44:16,738 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 89 [2019-09-10 07:44:17,259 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 100 [2019-09-10 07:44:17,445 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-10 07:44:17,829 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 85 [2019-09-10 07:44:18,410 WARN L188 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 110 [2019-09-10 07:44:19,146 WARN L188 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 116 [2019-09-10 07:44:19,530 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 79 [2019-09-10 07:44:20,005 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 103 [2019-09-10 07:44:20,458 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 07:44:20,835 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-10 07:44:21,100 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-10 07:44:21,560 WARN L188 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 92 [2019-09-10 07:44:21,793 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-10 07:44:22,258 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 97 [2019-09-10 07:44:22,434 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2019-09-10 07:44:22,957 WARN L188 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 107 [2019-09-10 07:44:23,388 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 94 [2019-09-10 07:44:23,920 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 104 [2019-09-10 07:44:24,293 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 07:44:24,660 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-10 07:44:25,186 WARN L188 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 107 [2019-09-10 07:44:25,375 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2019-09-10 07:44:25,660 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2019-09-10 07:44:26,333 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 07:44:26,594 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-10 07:44:27,041 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2019-09-10 07:44:27,554 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 100 [2019-09-10 07:44:28,201 WARN L188 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 110 [2019-09-10 07:44:28,850 WARN L188 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 106 [2019-09-10 07:44:29,533 WARN L188 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 116 [2019-09-10 07:44:29,742 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-10 07:44:30,179 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-10 07:44:30,741 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 103 [2019-09-10 07:44:31,341 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-10 07:44:31,509 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-10 07:44:31,848 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-09-10 07:44:32,348 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2019-09-10 07:44:32,769 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2019-09-10 07:44:33,039 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-10 07:44:33,674 WARN L188 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 101 [2019-09-10 07:44:34,283 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 98 [2019-09-10 07:44:34,793 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 100 [2019-09-10 07:44:35,706 WARN L188 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 121 [2019-09-10 07:44:35,958 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-10 07:44:36,243 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 07:44:36,604 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 07:44:37,190 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2019-09-10 07:44:37,523 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-10 07:44:37,756 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2019-09-10 07:44:38,053 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 07:44:38,497 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-10 07:44:38,772 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-10 07:44:39,444 WARN L188 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 103 [2019-09-10 07:44:39,852 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:44:40,562 WARN L188 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 112 [2019-09-10 07:44:40,780 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2019-09-10 07:44:42,649 WARN L188 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 119 DAG size of output: 94 [2019-09-10 07:44:43,285 WARN L188 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 110 [2019-09-10 07:44:44,002 WARN L188 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 116 [2019-09-10 07:44:44,747 WARN L188 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 112 [2019-09-10 07:44:45,047 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2019-09-10 07:44:45,279 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-10 07:44:45,745 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 07:44:46,000 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-10 07:44:46,561 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 93 [2019-09-10 07:44:46,783 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2019-09-10 07:44:47,016 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:44:47,537 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:44:48,198 WARN L188 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 99 [2019-09-10 07:44:48,758 WARN L188 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 114 [2019-09-10 07:44:49,360 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 98 [2019-09-10 07:44:49,888 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 104 [2019-09-10 07:44:50,852 WARN L188 SmtUtils]: Spent 617.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 127 [2019-09-10 07:44:51,088 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2019-09-10 07:44:51,402 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 07:44:52,034 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-10 07:44:52,365 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:44:53,449 WARN L188 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 118 [2019-09-10 07:44:53,668 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2019-09-10 07:44:54,342 WARN L188 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 132 [2019-09-10 07:44:54,924 WARN L188 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 110 [2019-09-10 07:44:55,670 WARN L188 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 126 [2019-09-10 07:44:56,337 WARN L188 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 100 [2019-09-10 07:44:57,065 WARN L188 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 116 [2019-09-10 07:44:57,329 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-10 07:44:58,109 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 83 [2019-09-10 07:44:58,817 WARN L188 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 128 [2019-09-10 07:44:59,776 WARN L188 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 144 [2019-09-10 07:45:00,340 WARN L188 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 114 [2019-09-10 07:45:00,951 WARN L188 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 120 [2019-09-10 07:45:01,544 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 104 [2019-09-10 07:45:01,889 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2019-09-10 07:45:02,300 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2019-09-10 07:45:02,570 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2019-09-10 07:45:03,018 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 86 [2019-09-10 07:45:03,547 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 101 [2019-09-10 07:45:04,328 WARN L188 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 132 [2019-09-10 07:45:05,097 WARN L188 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 138 [2019-09-10 07:45:05,715 WARN L188 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 116 [2019-09-10 07:45:06,583 WARN L188 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 132 [2019-09-10 07:45:07,118 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 95 [2019-09-10 07:45:07,535 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 89 [2019-09-10 07:45:07,933 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2019-09-10 07:45:08,300 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-10 07:45:08,583 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-09-10 07:45:09,004 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 86 [2019-09-10 07:45:09,671 WARN L188 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 104 [2019-09-10 07:45:10,396 WARN L188 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 115 [2019-09-10 07:45:11,253 WARN L188 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 134 [2019-09-10 07:45:12,240 WARN L188 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 150 [2019-09-10 07:45:12,838 WARN L188 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 120 [2019-09-10 07:45:13,451 WARN L188 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 113 [2019-09-10 07:45:14,015 WARN L188 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 107 [2019-09-10 07:45:14,319 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2019-09-10 07:45:14,730 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 07:45:15,136 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2019-09-10 07:45:15,419 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2019-09-10 07:45:16,200 WARN L188 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 133 [2019-09-10 07:45:17,144 WARN L188 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 150 [2019-09-10 07:45:17,998 WARN L188 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 138 [2019-09-10 07:45:18,244 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2019-09-10 07:45:18,522 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 07:45:18,918 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 87 [2019-09-10 07:45:19,130 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2019-09-10 07:45:19,620 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-10 07:45:20,601 WARN L188 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 155 [2019-09-10 07:45:21,488 WARN L188 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 146 [2019-09-10 07:45:22,604 WARN L188 SmtUtils]: Spent 875.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 162 [2019-09-10 07:45:23,083 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2019-09-10 07:45:23,381 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2019-09-10 07:45:24,115 WARN L188 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 119 [2019-09-10 07:45:24,600 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2019-09-10 07:45:25,444 WARN L188 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 151 [2019-09-10 07:45:26,626 WARN L188 SmtUtils]: Spent 958.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 167 [2019-09-10 07:45:27,420 WARN L188 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 150 [2019-09-10 07:45:28,112 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2019-09-10 07:45:28,833 WARN L188 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 124 [2019-09-10 07:45:29,327 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-10 07:45:30,157 WARN L188 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 155 [2019-09-10 07:45:30,826 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2019-09-10 07:45:31,091 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 68 [2019-09-10 07:45:31,890 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2019-09-10 07:45:32,312 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 86 [2019-09-10 07:45:32,823 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2019-09-10 07:45:33,115 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-10 07:45:33,568 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2019-09-10 07:45:33,916 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-10 07:45:34,299 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 68 [2019-09-10 07:45:34,682 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-10 07:45:35,291 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-09-10 07:45:35,516 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2019-09-10 07:45:35,887 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2019-09-10 07:45:36,627 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2019-09-10 07:45:36,817 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2019-09-10 07:45:37,796 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-10 07:45:38,118 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-10 07:45:38,466 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:45:38,913 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 96 [2019-09-10 07:45:39,430 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2019-09-10 07:45:40,072 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2019-09-10 07:45:40,530 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2019-09-10 07:45:41,056 WARN L188 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 92 [2019-09-10 07:45:41,340 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 07:45:41,743 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 86 [2019-09-10 07:45:42,505 WARN L188 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2019-09-10 07:45:43,174 WARN L188 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 107 [2019-09-10 07:45:43,644 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2019-09-10 07:45:44,139 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 102 [2019-09-10 07:45:44,736 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2019-09-10 07:45:45,013 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-10 07:45:45,402 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 07:45:45,727 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-09-10 07:45:46,118 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 86 [2019-09-10 07:45:46,868 WARN L188 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 97 [2019-09-10 07:45:47,478 WARN L188 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2019-09-10 07:45:47,832 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2019-09-10 07:45:48,130 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2019-09-10 07:45:48,547 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 86 [2019-09-10 07:45:49,107 WARN L188 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 102 [2019-09-10 07:45:49,472 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-10 07:45:50,056 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:45:50,836 WARN L188 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 113 [2019-09-10 07:45:51,043 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-10 07:45:51,322 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 07:45:51,798 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2019-09-10 07:45:52,216 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 07:45:52,670 WARN L188 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2019-09-10 07:45:53,067 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2019-09-10 07:45:53,908 WARN L188 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 101 [2019-09-10 07:45:54,129 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2019-09-10 07:45:54,461 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2019-09-10 07:45:54,794 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2019-09-10 07:45:55,112 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2019-09-10 07:45:55,517 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-09-10 07:45:56,015 WARN L188 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-09-10 07:45:56,458 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 07:45:56,744 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 07:45:57,139 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 87 [2019-09-10 07:45:57,418 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2019-09-10 07:45:57,832 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 93 [2019-09-10 07:45:58,036 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-09-10 07:45:58,804 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2019-09-10 07:45:59,190 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-10 07:45:59,482 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2019-09-10 07:45:59,718 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-09-10 07:46:00,045 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2019-09-10 07:46:00,368 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2019-09-10 07:46:00,681 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 84 [2019-09-10 07:46:01,017 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2019-09-10 07:46:01,563 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 07:46:02,004 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 07:46:02,188 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2019-09-10 07:46:02,621 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2019-09-10 07:46:02,881 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-10 07:46:03,087 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-10 07:46:03,283 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-09-10 07:46:03,610 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2019-09-10 07:46:04,043 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:46:04,334 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 84 [2019-09-10 07:46:05,266 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 07:46:05,583 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-10 07:46:05,971 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 07:46:06,426 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 93 [2019-09-10 07:46:06,790 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-10 07:46:07,188 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 87 [2019-09-10 07:46:07,729 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-10 07:46:08,007 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 07:46:08,358 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2019-09-10 07:46:08,566 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-10 07:46:08,773 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-09-10 07:46:09,077 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 07:46:09,375 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-10 07:46:09,694 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 07:46:10,195 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 93 [2019-09-10 07:46:10,665 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:46:11,039 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-10 07:46:11,256 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-09-10 07:46:11,607 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2019-09-10 07:46:12,023 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 07:46:12,576 WARN L188 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-10 07:46:13,298 WARN L188 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:46:13,557 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-09-10 07:46:14,123 WARN L188 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 104 [2019-09-10 07:46:14,407 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2019-09-10 07:46:14,842 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 87 [2019-09-10 07:46:15,630 WARN L188 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-10 07:46:16,202 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-10 07:46:16,781 WARN L188 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 98 [2019-09-10 07:46:18,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:46:18,504 INFO L93 Difference]: Finished difference Result 1215993 states and 1646278 transitions. [2019-09-10 07:46:18,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 566 states. [2019-09-10 07:46:18,504 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 84 [2019-09-10 07:46:18,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:46:27,165 INFO L225 Difference]: With dead ends: 1215993 [2019-09-10 07:46:27,165 INFO L226 Difference]: Without dead ends: 1215993 [2019-09-10 07:46:27,175 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 746 GetRequests, 140 SyntacticMatches, 10 SemanticMatches, 596 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160799 ImplicationChecksByTransitivity, 187.6s TimeCoverageRelationStatistics Valid=33626, Invalid=323380, Unknown=0, NotChecked=0, Total=357006 [2019-09-10 07:46:27,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1215993 states. [2019-09-10 07:46:33,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1215993 to 223362. [2019-09-10 07:46:33,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223362 states. [2019-09-10 07:46:33,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223362 states to 223362 states and 304845 transitions. [2019-09-10 07:46:33,753 INFO L78 Accepts]: Start accepts. Automaton has 223362 states and 304845 transitions. Word has length 84 [2019-09-10 07:46:33,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:46:33,753 INFO L475 AbstractCegarLoop]: Abstraction has 223362 states and 304845 transitions. [2019-09-10 07:46:33,753 INFO L476 AbstractCegarLoop]: Interpolant automaton has 35 states. [2019-09-10 07:46:33,753 INFO L276 IsEmpty]: Start isEmpty. Operand 223362 states and 304845 transitions. [2019-09-10 07:46:33,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-10 07:46:33,756 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:46:33,756 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:46:33,756 INFO L418 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:46:33,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:46:33,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1030764032, now seen corresponding path program 1 times [2019-09-10 07:46:33,757 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:46:33,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:46:33,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:46:33,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:46:33,758 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:46:33,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:46:33,804 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:46:33,804 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:46:33,804 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:46:33,804 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:46:33,805 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:46:33,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:46:33,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:46:33,805 INFO L87 Difference]: Start difference. First operand 223362 states and 304845 transitions. Second operand 3 states. [2019-09-10 07:46:34,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:46:34,165 INFO L93 Difference]: Finished difference Result 115752 states and 154835 transitions. [2019-09-10 07:46:34,165 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:46:34,166 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2019-09-10 07:46:34,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:46:34,314 INFO L225 Difference]: With dead ends: 115752 [2019-09-10 07:46:34,315 INFO L226 Difference]: Without dead ends: 115752 [2019-09-10 07:46:34,315 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 [2019-09-10 07:46:34,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115752 states. [2019-09-10 07:46:35,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115752 to 113518. [2019-09-10 07:46:35,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113518 states. [2019-09-10 07:46:35,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113518 states to 113518 states and 152602 transitions. [2019-09-10 07:46:35,933 INFO L78 Accepts]: Start accepts. Automaton has 113518 states and 152602 transitions. Word has length 84 [2019-09-10 07:46:35,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:46:35,933 INFO L475 AbstractCegarLoop]: Abstraction has 113518 states and 152602 transitions. [2019-09-10 07:46:35,933 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:46:35,933 INFO L276 IsEmpty]: Start isEmpty. Operand 113518 states and 152602 transitions. [2019-09-10 07:46:35,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-10 07:46:35,935 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:46:35,935 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:46:35,936 INFO L418 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:46:35,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:46:35,936 INFO L82 PathProgramCache]: Analyzing trace with hash 436596032, now seen corresponding path program 1 times [2019-09-10 07:46:35,936 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:46:35,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:46:35,937 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:46:35,937 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:46:35,937 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:46:35,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:46:35,989 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:46:35,989 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:46:35,989 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:46:35,990 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:46:35,990 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:46:35,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:46:35,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:46:35,990 INFO L87 Difference]: Start difference. First operand 113518 states and 152602 transitions. Second operand 3 states. [2019-09-10 07:46:36,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:46:36,157 INFO L93 Difference]: Finished difference Result 68994 states and 90923 transitions. [2019-09-10 07:46:36,157 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:46:36,157 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 84 [2019-09-10 07:46:36,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:46:36,242 INFO L225 Difference]: With dead ends: 68994 [2019-09-10 07:46:36,242 INFO L226 Difference]: Without dead ends: 68994 [2019-09-10 07:46:36,242 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 [2019-09-10 07:46:36,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68994 states. [2019-09-10 07:46:36,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68994 to 68992. [2019-09-10 07:46:36,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68992 states. [2019-09-10 07:46:37,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68992 states to 68992 states and 90922 transitions. [2019-09-10 07:46:37,106 INFO L78 Accepts]: Start accepts. Automaton has 68992 states and 90922 transitions. Word has length 84 [2019-09-10 07:46:37,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:46:37,107 INFO L475 AbstractCegarLoop]: Abstraction has 68992 states and 90922 transitions. [2019-09-10 07:46:37,107 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:46:37,107 INFO L276 IsEmpty]: Start isEmpty. Operand 68992 states and 90922 transitions. [2019-09-10 07:46:37,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-09-10 07:46:37,109 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:46:37,110 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:46:37,110 INFO L418 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:46:37,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:46:37,110 INFO L82 PathProgramCache]: Analyzing trace with hash -124089325, now seen corresponding path program 1 times [2019-09-10 07:46:37,110 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:46:37,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:46:37,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:46:37,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:46:37,113 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:46:37,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:46:37,867 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:46:37,868 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:46:37,868 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:46:37,868 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 86 with the following transitions: [2019-09-10 07:46:37,868 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [57], [60], [63], [66], [69], [72], [76], [79], [82], [87], [89], [92], [95], [98], [100], [102], [105], [108], [111], [113], [115], [118], [121], [124], [126], [128], [131], [138], [140], [143], [144], [146], [155], [158], [160], [173], [176], [179], [181], [198], [201], [204], [206], [223], [226], [229], [231], [239], [242], [248], [251], [254], [256], [290], [291], [295], [296], [297] [2019-09-10 07:46:37,871 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:46:37,871 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:46:37,885 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:46:38,250 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:46:38,251 INFO L272 AbstractInterpreter]: Visited 77 different actions 731 times. Merged at 47 different actions 579 times. Widened at 17 different actions 101 times. Performed 2746 root evaluator evaluations with a maximum evaluation depth of 6. Performed 2746 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 69 fixpoints after 18 different actions. Largest state had 112 variables. [2019-09-10 07:46:38,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:46:38,252 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:46:38,252 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:46:38,252 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:46:38,278 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:46:38,279 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:46:38,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:46:38,398 INFO L256 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-10 07:46:38,401 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:46:38,608 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:39,612 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:46:39,612 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:46:40,047 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 12 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:46:40,051 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:46:40,052 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 11, 11] total 35 [2019-09-10 07:46:40,052 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:46:40,052 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-09-10 07:46:40,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-09-10 07:46:40,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1083, Unknown=0, NotChecked=0, Total=1190 [2019-09-10 07:46:40,053 INFO L87 Difference]: Start difference. First operand 68992 states and 90922 transitions. Second operand 26 states. [2019-09-10 07:46:41,067 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 54 [2019-09-10 07:46:41,335 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 70 [2019-09-10 07:46:41,602 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 74 [2019-09-10 07:46:41,888 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2019-09-10 07:46:42,144 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2019-09-10 07:46:42,414 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 75 [2019-09-10 07:46:42,660 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 69 [2019-09-10 07:46:43,119 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2019-09-10 07:46:43,279 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2019-09-10 07:46:43,551 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 71 [2019-09-10 07:46:43,785 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 51 [2019-09-10 07:46:44,127 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 78 [2019-09-10 07:46:44,400 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 72 [2019-09-10 07:46:44,561 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 41 [2019-09-10 07:46:44,835 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2019-09-10 07:46:45,161 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 77 [2019-09-10 07:46:45,566 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 79 [2019-09-10 07:46:45,797 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 57 [2019-09-10 07:46:46,166 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 79 [2019-09-10 07:46:46,388 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2019-09-10 07:46:46,571 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 48 [2019-09-10 07:46:46,801 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2019-09-10 07:46:46,958 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 46 [2019-09-10 07:46:47,159 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 60 [2019-09-10 07:46:47,477 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2019-09-10 07:46:47,901 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 56 [2019-09-10 07:46:48,277 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 77 [2019-09-10 07:46:48,604 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 65 [2019-09-10 07:46:49,037 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 71 [2019-09-10 07:46:49,394 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 70 [2019-09-10 07:46:49,931 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 87 [2019-09-10 07:46:50,144 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 52 [2019-09-10 07:46:50,563 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2019-09-10 07:46:50,820 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2019-09-10 07:46:51,105 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 60 [2019-09-10 07:46:51,293 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 56 [2019-09-10 07:46:51,475 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 49 [2019-09-10 07:46:51,689 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2019-09-10 07:46:51,880 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2019-09-10 07:46:53,246 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 70 [2019-09-10 07:46:53,550 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 69 [2019-09-10 07:46:53,869 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2019-09-10 07:46:54,186 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 71 [2019-09-10 07:46:54,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:46:54,380 INFO L93 Difference]: Finished difference Result 180138 states and 238136 transitions. [2019-09-10 07:46:54,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2019-09-10 07:46:54,383 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 85 [2019-09-10 07:46:54,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:46:54,565 INFO L225 Difference]: With dead ends: 180138 [2019-09-10 07:46:54,565 INFO L226 Difference]: Without dead ends: 180138 [2019-09-10 07:46:54,566 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3109 ImplicationChecksByTransitivity, 14.2s TimeCoverageRelationStatistics Valid=2060, Invalid=8242, Unknown=0, NotChecked=0, Total=10302 [2019-09-10 07:46:54,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180138 states. [2019-09-10 07:46:55,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180138 to 68072. [2019-09-10 07:46:55,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68072 states. [2019-09-10 07:46:55,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68072 states to 68072 states and 89774 transitions. [2019-09-10 07:46:55,453 INFO L78 Accepts]: Start accepts. Automaton has 68072 states and 89774 transitions. Word has length 85 [2019-09-10 07:46:55,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:46:55,454 INFO L475 AbstractCegarLoop]: Abstraction has 68072 states and 89774 transitions. [2019-09-10 07:46:55,454 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-09-10 07:46:55,454 INFO L276 IsEmpty]: Start isEmpty. Operand 68072 states and 89774 transitions. [2019-09-10 07:46:55,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-09-10 07:46:55,456 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:46:55,456 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:46:55,456 INFO L418 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:46:55,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:46:55,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1419219145, now seen corresponding path program 1 times [2019-09-10 07:46:55,457 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:46:55,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:46:55,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:46:55,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:46:55,458 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:46:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:46:55,497 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-10 07:46:55,498 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:46:55,498 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:46:55,498 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:46:55,498 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:46:55,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:46:55,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:46:55,499 INFO L87 Difference]: Start difference. First operand 68072 states and 89774 transitions. Second operand 3 states. [2019-09-10 07:46:55,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:46:55,625 INFO L93 Difference]: Finished difference Result 47090 states and 62120 transitions. [2019-09-10 07:46:55,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:46:55,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 85 [2019-09-10 07:46:55,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:46:55,666 INFO L225 Difference]: With dead ends: 47090 [2019-09-10 07:46:55,666 INFO L226 Difference]: Without dead ends: 47090 [2019-09-10 07:46:55,667 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 [2019-09-10 07:46:55,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47090 states. [2019-09-10 07:46:56,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47090 to 45860. [2019-09-10 07:46:56,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45860 states. [2019-09-10 07:46:56,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45860 states to 45860 states and 60828 transitions. [2019-09-10 07:46:56,254 INFO L78 Accepts]: Start accepts. Automaton has 45860 states and 60828 transitions. Word has length 85 [2019-09-10 07:46:56,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:46:56,254 INFO L475 AbstractCegarLoop]: Abstraction has 45860 states and 60828 transitions. [2019-09-10 07:46:56,255 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:46:56,255 INFO L276 IsEmpty]: Start isEmpty. Operand 45860 states and 60828 transitions. [2019-09-10 07:46:56,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-09-10 07:46:56,256 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:46:56,256 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:46:56,256 INFO L418 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:46:56,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:46:56,256 INFO L82 PathProgramCache]: Analyzing trace with hash 138842613, now seen corresponding path program 1 times [2019-09-10 07:46:56,256 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:46:56,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:46:56,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:46:56,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:46:56,258 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:46:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:46:57,232 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:46:57,232 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:46:57,232 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:46:57,233 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 87 with the following transitions: [2019-09-10 07:46:57,233 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [57], [60], [63], [66], [69], [72], [76], [79], [82], [85], [87], [89], [92], [95], [100], [102], [105], [108], [111], [113], [115], [118], [121], [126], [128], [131], [138], [140], [143], [144], [146], [155], [158], [160], [164], [167], [173], [176], [179], [181], [198], [201], [204], [206], [214], [219], [223], [226], [229], [231], [248], [251], [254], [256], [290], [291], [295], [296], [297] [2019-09-10 07:46:57,235 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:46:57,235 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:46:57,246 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:46:57,475 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:46:57,475 INFO L272 AbstractInterpreter]: Visited 78 different actions 581 times. Merged at 48 different actions 446 times. Widened at 13 different actions 48 times. Performed 2009 root evaluator evaluations with a maximum evaluation depth of 6. Performed 2009 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 52 fixpoints after 15 different actions. Largest state had 112 variables. [2019-09-10 07:46:57,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:46:57,475 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:46:57,476 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:46:57,476 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:46:57,496 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:46:57,496 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:46:57,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:46:57,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 33 conjunts are in the unsatisfiable core [2019-09-10 07:46:57,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:46:57,847 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:58,530 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:58,674 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:58,808 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:47:01,264 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:47:01,264 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:47:01,607 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:47:02,172 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:47:02,176 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:47:02,176 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 15] total 43 [2019-09-10 07:47:02,176 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:47:02,177 INFO L454 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-09-10 07:47:02,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-09-10 07:47:02,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=1646, Unknown=1, NotChecked=0, Total=1806 [2019-09-10 07:47:02,178 INFO L87 Difference]: Start difference. First operand 45860 states and 60828 transitions. Second operand 33 states. [2019-09-10 07:47:05,614 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2019-09-10 07:47:05,990 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50 [2019-09-10 07:47:06,343 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 62 [2019-09-10 07:47:06,504 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50 [2019-09-10 07:47:07,317 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 62 [2019-09-10 07:47:07,826 WARN L188 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 73 [2019-09-10 07:47:08,387 WARN L188 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 80 [2019-09-10 07:47:09,042 WARN L188 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 73 [2019-09-10 07:47:11,406 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 86 [2019-09-10 07:47:12,016 WARN L188 SmtUtils]: Spent 519.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 80 [2019-09-10 07:47:12,335 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 86 [2019-09-10 07:47:13,856 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 86 [2019-09-10 07:47:14,218 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 86 [2019-09-10 07:47:16,662 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 88 [2019-09-10 07:47:17,507 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 88 [2019-09-10 07:47:18,032 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 84 [2019-09-10 07:47:18,499 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 82 [2019-09-10 07:47:18,887 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 91 [2019-09-10 07:47:19,264 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 89 [2019-09-10 07:47:19,696 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 84 [2019-09-10 07:47:20,259 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 88 [2019-09-10 07:47:20,610 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 82 [2019-09-10 07:47:20,999 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 91 [2019-09-10 07:47:22,759 WARN L188 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 114 DAG size of output: 77 [2019-09-10 07:47:23,279 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 86 [2019-09-10 07:47:25,316 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 88 [2019-09-10 07:47:25,658 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 89 [2019-09-10 07:47:26,201 WARN L188 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 87 [2019-09-10 07:47:26,625 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 86 [2019-09-10 07:47:27,880 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 95 [2019-09-10 07:47:28,169 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-10 07:47:28,442 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2019-09-10 07:47:28,965 WARN L188 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 98 [2019-09-10 07:47:31,212 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2019-09-10 07:47:31,542 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-10 07:47:31,868 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2019-09-10 07:47:32,095 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-09-10 07:47:32,775 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-10 07:47:33,156 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-09-10 07:47:33,790 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2019-09-10 07:47:34,088 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2019-09-10 07:47:34,297 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-10 07:47:34,609 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2019-09-10 07:47:34,997 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2019-09-10 07:47:35,319 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2019-09-10 07:47:37,026 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-10 07:47:37,352 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-09-10 07:47:37,606 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2019-09-10 07:47:38,692 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2019-09-10 07:47:39,943 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2019-09-10 07:47:41,770 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2019-09-10 07:47:46,879 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2019-09-10 07:47:47,131 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2019-09-10 07:47:47,459 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2019-09-10 07:47:47,772 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2019-09-10 07:47:47,942 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2019-09-10 07:47:48,147 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2019-09-10 07:47:48,492 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2019-09-10 07:47:48,796 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2019-09-10 07:47:49,057 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2019-09-10 07:47:49,520 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2019-09-10 07:47:49,704 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2019-09-10 07:47:49,947 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2019-09-10 07:47:50,467 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:47:50,667 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2019-09-10 07:47:50,862 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2019-09-10 07:47:52,221 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2019-09-10 07:47:52,749 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:47:55,130 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2019-09-10 07:47:55,430 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2019-09-10 07:47:55,594 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2019-09-10 07:47:55,800 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55 [2019-09-10 07:47:56,395 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 66 [2019-09-10 07:47:56,606 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2019-09-10 07:47:56,840 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2019-09-10 07:47:57,101 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2019-09-10 07:47:57,401 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:47:57,634 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2019-09-10 07:47:58,056 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 66 [2019-09-10 07:47:58,281 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2019-09-10 07:47:58,676 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 69 [2019-09-10 07:47:59,045 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2019-09-10 07:47:59,537 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2019-09-10 07:47:59,988 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 69 [2019-09-10 07:48:00,273 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2019-09-10 07:48:00,810 WARN L188 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 108 [2019-09-10 07:48:01,312 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2019-09-10 07:48:01,677 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2019-09-10 07:48:01,974 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2019-09-10 07:48:02,358 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2019-09-10 07:48:02,655 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2019-09-10 07:48:02,882 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2019-09-10 07:48:03,260 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 85 [2019-09-10 07:48:03,498 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2019-09-10 07:48:03,818 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 85 [2019-09-10 07:48:04,134 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2019-09-10 07:48:04,689 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-10 07:48:05,995 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2019-09-10 07:48:06,450 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2019-09-10 07:48:06,720 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2019-09-10 07:48:08,438 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2019-09-10 07:48:08,914 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2019-09-10 07:48:09,282 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 81 [2019-09-10 07:48:11,426 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2019-09-10 07:48:11,789 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:48:12,219 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2019-09-10 07:48:14,079 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2019-09-10 07:48:14,384 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2019-09-10 07:48:14,750 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:48:15,082 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2019-09-10 07:48:15,509 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2019-09-10 07:48:15,744 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2019-09-10 07:48:16,151 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 85 [2019-09-10 07:48:18,429 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2019-09-10 07:48:18,711 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2019-09-10 07:48:19,027 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2019-09-10 07:48:19,795 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-10 07:48:20,181 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 66 [2019-09-10 07:48:20,439 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2019-09-10 07:48:20,802 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 81 [2019-09-10 07:48:22,805 WARN L188 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 114 DAG size of output: 72 [2019-09-10 07:48:23,167 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 85 [2019-09-10 07:48:23,453 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:48:23,787 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2019-09-10 07:48:24,272 WARN L188 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 62 [2019-09-10 07:48:24,891 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 93 [2019-09-10 07:48:26,519 WARN L188 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 110 DAG size of output: 68 [2019-09-10 07:48:26,920 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:48:27,359 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 76 [2019-09-10 07:48:28,063 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 83 [2019-09-10 07:48:29,015 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 82 [2019-09-10 07:48:30,375 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 83 [2019-09-10 07:48:31,628 WARN L188 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 104 [2019-09-10 07:48:32,122 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 89 [2019-09-10 07:48:35,484 WARN L188 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 101 [2019-09-10 07:48:37,060 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2019-09-10 07:48:37,313 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 46 [2019-09-10 07:48:38,173 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 48 [2019-09-10 07:48:38,458 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 58 [2019-09-10 07:48:38,609 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 48 [2019-09-10 07:48:38,849 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 58 [2019-09-10 07:48:39,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:48:39,179 INFO L93 Difference]: Finished difference Result 153616 states and 204315 transitions. [2019-09-10 07:48:39,179 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 186 states. [2019-09-10 07:48:39,179 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 86 [2019-09-10 07:48:39,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:48:39,338 INFO L225 Difference]: With dead ends: 153616 [2019-09-10 07:48:39,339 INFO L226 Difference]: Without dead ends: 153616 [2019-09-10 07:48:39,341 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 144 SyntacticMatches, 8 SemanticMatches, 223 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18265 ImplicationChecksByTransitivity, 62.4s TimeCoverageRelationStatistics Valid=7156, Invalid=43239, Unknown=5, NotChecked=0, Total=50400 [2019-09-10 07:48:39,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153616 states. [2019-09-10 07:48:40,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153616 to 45860. [2019-09-10 07:48:40,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45860 states. [2019-09-10 07:48:40,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45860 states to 45860 states and 61034 transitions. [2019-09-10 07:48:40,394 INFO L78 Accepts]: Start accepts. Automaton has 45860 states and 61034 transitions. Word has length 86 [2019-09-10 07:48:40,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:48:40,395 INFO L475 AbstractCegarLoop]: Abstraction has 45860 states and 61034 transitions. [2019-09-10 07:48:40,395 INFO L476 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-09-10 07:48:40,395 INFO L276 IsEmpty]: Start isEmpty. Operand 45860 states and 61034 transitions. [2019-09-10 07:48:40,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-09-10 07:48:40,396 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:48:40,396 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:48:40,396 INFO L418 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:48:40,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:48:40,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1597746910, now seen corresponding path program 1 times [2019-09-10 07:48:40,397 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:48:40,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:48:40,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:48:40,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:48:40,398 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:48:40,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:48:40,436 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-10 07:48:40,437 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:48:40,437 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:48:40,437 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:48:40,438 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:48:40,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:48:40,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:48:40,438 INFO L87 Difference]: Start difference. First operand 45860 states and 61034 transitions. Second operand 3 states. [2019-09-10 07:48:40,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:48:40,551 INFO L93 Difference]: Finished difference Result 30186 states and 39716 transitions. [2019-09-10 07:48:40,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:48:40,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 86 [2019-09-10 07:48:40,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:48:40,584 INFO L225 Difference]: With dead ends: 30186 [2019-09-10 07:48:40,584 INFO L226 Difference]: Without dead ends: 30186 [2019-09-10 07:48:40,584 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 [2019-09-10 07:48:40,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30186 states. [2019-09-10 07:48:40,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30186 to 30186. [2019-09-10 07:48:40,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30186 states. [2019-09-10 07:48:40,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30186 states to 30186 states and 39716 transitions. [2019-09-10 07:48:40,795 INFO L78 Accepts]: Start accepts. Automaton has 30186 states and 39716 transitions. Word has length 86 [2019-09-10 07:48:40,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:48:40,795 INFO L475 AbstractCegarLoop]: Abstraction has 30186 states and 39716 transitions. [2019-09-10 07:48:40,795 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:48:40,795 INFO L276 IsEmpty]: Start isEmpty. Operand 30186 states and 39716 transitions. [2019-09-10 07:48:40,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-10 07:48:40,796 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:48:40,796 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:48:40,796 INFO L418 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:48:40,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:48:40,796 INFO L82 PathProgramCache]: Analyzing trace with hash 280308278, now seen corresponding path program 1 times [2019-09-10 07:48:40,796 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:48:40,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:48:40,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:48:40,797 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:48:40,798 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:48:40,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:48:41,287 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2019-09-10 07:48:41,507 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:48:41,508 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:48:41,508 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:48:41,508 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 88 with the following transitions: [2019-09-10 07:48:41,508 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [57], [60], [63], [66], [69], [72], [76], [79], [82], [87], [89], [92], [95], [98], [100], [102], [105], [108], [113], [115], [118], [121], [126], [128], [131], [138], [140], [143], [144], [146], [155], [158], [160], [164], [167], [173], [176], [179], [181], [189], [194], [198], [201], [204], [206], [223], [226], [229], [231], [239], [244], [248], [251], [254], [256], [290], [291], [295], [296], [297] [2019-09-10 07:48:41,509 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:48:41,509 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:48:41,522 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:48:41,908 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:48:41,908 INFO L272 AbstractInterpreter]: Visited 79 different actions 756 times. Merged at 49 different actions 606 times. Widened at 15 different actions 85 times. Performed 2627 root evaluator evaluations with a maximum evaluation depth of 6. Performed 2627 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 70 fixpoints after 15 different actions. Largest state had 112 variables. [2019-09-10 07:48:41,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:48:41,908 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:48:41,909 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:48:41,909 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:48:41,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:48:41,925 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:48:42,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:48:42,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 21 conjunts are in the unsatisfiable core [2019-09-10 07:48:42,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:48:42,174 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:42,423 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:48:42,423 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:48:42,855 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:48:42,864 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:48:42,864 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12, 12] total 31 [2019-09-10 07:48:42,865 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:48:42,865 INFO L454 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-09-10 07:48:42,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-09-10 07:48:42,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=801, Unknown=0, NotChecked=0, Total=930 [2019-09-10 07:48:42,866 INFO L87 Difference]: Start difference. First operand 30186 states and 39716 transitions. Second operand 24 states. [2019-09-10 07:48:43,346 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 38 [2019-09-10 07:48:43,508 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 38 [2019-09-10 07:48:43,678 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 36 [2019-09-10 07:48:44,345 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 41 [2019-09-10 07:48:44,480 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 32 [2019-09-10 07:48:45,304 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 42 [2019-09-10 07:48:45,620 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 42 [2019-09-10 07:48:45,817 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2019-09-10 07:48:46,000 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 44 [2019-09-10 07:48:46,271 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 44 [2019-09-10 07:48:46,554 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 42 [2019-09-10 07:48:46,910 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 31 [2019-09-10 07:48:47,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:48:47,286 INFO L93 Difference]: Finished difference Result 91392 states and 120069 transitions. [2019-09-10 07:48:47,286 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-09-10 07:48:47,286 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 87 [2019-09-10 07:48:47,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:48:47,374 INFO L225 Difference]: With dead ends: 91392 [2019-09-10 07:48:47,374 INFO L226 Difference]: Without dead ends: 91392 [2019-09-10 07:48:47,375 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 156 SyntacticMatches, 2 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 708 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=702, Invalid=2490, Unknown=0, NotChecked=0, Total=3192 [2019-09-10 07:48:47,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91392 states. [2019-09-10 07:48:47,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91392 to 29868. [2019-09-10 07:48:47,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29868 states. [2019-09-10 07:48:47,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29868 states to 29868 states and 39294 transitions. [2019-09-10 07:48:47,806 INFO L78 Accepts]: Start accepts. Automaton has 29868 states and 39294 transitions. Word has length 87 [2019-09-10 07:48:47,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:48:47,806 INFO L475 AbstractCegarLoop]: Abstraction has 29868 states and 39294 transitions. [2019-09-10 07:48:47,807 INFO L476 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-09-10 07:48:47,807 INFO L276 IsEmpty]: Start isEmpty. Operand 29868 states and 39294 transitions. [2019-09-10 07:48:47,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-09-10 07:48:47,808 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:48:47,809 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:48:47,809 INFO L418 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:48:47,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:48:47,809 INFO L82 PathProgramCache]: Analyzing trace with hash 2099993150, now seen corresponding path program 1 times [2019-09-10 07:48:47,809 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:48:47,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:48:47,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:48:47,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:48:47,810 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:48:47,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:48:47,898 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 41 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:48:47,899 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:48:47,899 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:48:47,899 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 113 with the following transitions: [2019-09-10 07:48:47,900 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [57], [60], [63], [66], [69], [72], [76], [79], [82], [85], [87], [89], [92], [95], [98], [100], [102], [105], [108], [111], [113], [115], [118], [121], [126], [128], [131], [138], [140], [143], [144], [146], [155], [158], [160], [164], [167], [173], [176], [179], [181], [198], [201], [204], [206], [223], [226], [229], [231], [248], [251], [254], [256], [290], [291], [295], [296], [297] [2019-09-10 07:48:47,902 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:48:47,902 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:48:47,915 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:48:48,155 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:48:48,156 INFO L272 AbstractInterpreter]: Visited 77 different actions 566 times. Merged at 47 different actions 433 times. Widened at 14 different actions 51 times. Performed 1999 root evaluator evaluations with a maximum evaluation depth of 6. Performed 1999 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 51 fixpoints after 15 different actions. Largest state had 112 variables. [2019-09-10 07:48:48,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:48:48,156 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:48:48,156 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:48:48,156 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:48:48,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:48:48,172 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:48:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:48:48,269 INFO L256 TraceCheckSpWp]: Trace formula consists of 718 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-10 07:48:48,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:48:48,337 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 12 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:48:48,338 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:48:48,401 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 12 proven. 43 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:48:48,404 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:48:48,404 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 14 [2019-09-10 07:48:48,405 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:48:48,405 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 07:48:48,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 07:48:48,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-09-10 07:48:48,406 INFO L87 Difference]: Start difference. First operand 29868 states and 39294 transitions. Second operand 10 states. [2019-09-10 07:48:48,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:48:48,776 INFO L93 Difference]: Finished difference Result 29100 states and 37576 transitions. [2019-09-10 07:48:48,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-10 07:48:48,777 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 112 [2019-09-10 07:48:48,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:48:48,801 INFO L225 Difference]: With dead ends: 29100 [2019-09-10 07:48:48,801 INFO L226 Difference]: Without dead ends: 29100 [2019-09-10 07:48:48,802 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 219 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2019-09-10 07:48:48,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29100 states. [2019-09-10 07:48:48,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29100 to 26754. [2019-09-10 07:48:48,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26754 states. [2019-09-10 07:48:49,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26754 states to 26754 states and 34741 transitions. [2019-09-10 07:48:49,006 INFO L78 Accepts]: Start accepts. Automaton has 26754 states and 34741 transitions. Word has length 112 [2019-09-10 07:48:49,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:48:49,006 INFO L475 AbstractCegarLoop]: Abstraction has 26754 states and 34741 transitions. [2019-09-10 07:48:49,006 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 07:48:49,006 INFO L276 IsEmpty]: Start isEmpty. Operand 26754 states and 34741 transitions. [2019-09-10 07:48:49,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-09-10 07:48:49,014 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:48:49,014 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-10 07:48:49,015 INFO L418 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:48:49,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:48:49,015 INFO L82 PathProgramCache]: Analyzing trace with hash 300681773, now seen corresponding path program 1 times [2019-09-10 07:48:49,015 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:48:49,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:48:49,016 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:48:49,016 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:48:49,016 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:48:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:48:49,318 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 13 proven. 90 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:48:49,319 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:48:49,319 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:48:49,319 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 137 with the following transitions: [2019-09-10 07:48:49,319 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [57], [60], [63], [66], [69], [72], [76], [79], [82], [85], [87], [89], [92], [95], [98], [100], [102], [105], [108], [111], [113], [115], [118], [121], [124], [126], [128], [131], [138], [140], [143], [144], [146], [155], [158], [162], [171], [173], [176], [179], [181], [189], [192], [198], [201], [204], [206], [221], [223], [226], [229], [231], [239], [242], [248], [251], [254], [256], [290], [291], [295], [296], [297] [2019-09-10 07:48:49,321 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:48:49,321 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:48:49,334 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:48:49,866 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:48:49,866 INFO L272 AbstractInterpreter]: Visited 82 different actions 1118 times. Merged at 52 different actions 851 times. Widened at 22 different actions 174 times. Performed 3720 root evaluator evaluations with a maximum evaluation depth of 5. Performed 3720 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 166 fixpoints after 21 different actions. Largest state had 112 variables. [2019-09-10 07:48:49,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:48:49,867 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:48:49,867 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:48:49,867 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:48:49,887 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:48:49,887 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:48:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:48:49,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 805 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-10 07:48:50,003 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:48:50,189 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:50,307 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:50,685 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 32 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:48:50,685 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:48:51,140 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:51,142 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:51,143 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:51,143 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:51,144 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:51,145 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:51,147 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:51,147 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:51,148 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:51,149 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:51,149 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:51,150 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:51,151 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:51,152 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:51,153 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:51,154 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:51,155 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:51,155 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:51,157 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:51,157 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:51,158 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:51,159 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:53,759 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:48:53,914 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 30 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:48:53,917 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:48:53,918 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 31 [2019-09-10 07:48:53,918 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:48:53,918 INFO L454 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-09-10 07:48:53,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-09-10 07:48:53,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=831, Unknown=0, NotChecked=0, Total=930 [2019-09-10 07:48:53,919 INFO L87 Difference]: Start difference. First operand 26754 states and 34741 transitions. Second operand 21 states. [2019-09-10 07:48:54,104 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 07:48:54,600 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-10 07:48:54,818 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:48:55,149 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:48:55,613 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:48:56,120 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:48:56,507 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:48:57,101 WARN L188 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:48:57,421 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:48:57,873 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:48:58,235 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:48:58,681 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:48:59,315 WARN L188 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:48:59,759 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:49:00,175 WARN L188 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:49:00,825 WARN L188 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:49:01,263 WARN L188 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:49:01,688 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:49:02,043 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:49:02,614 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 07:49:02,998 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 07:49:03,429 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2019-09-10 07:49:03,998 WARN L188 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 07:49:04,436 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 07:49:04,846 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 07:49:05,468 WARN L188 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 07:49:06,373 WARN L188 SmtUtils]: Spent 834.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 07:49:07,077 WARN L188 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 07:49:07,430 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:49:07,855 WARN L188 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 07:49:08,578 WARN L188 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:49:09,038 WARN L188 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 07:49:09,348 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:49:09,880 WARN L188 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 07:49:10,285 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:49:10,677 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:49:11,042 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:49:11,879 WARN L188 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:49:12,320 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:49:12,805 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 07:49:13,287 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 07:49:13,688 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:49:14,778 WARN L188 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:49:15,475 WARN L188 SmtUtils]: Spent 526.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:49:16,095 WARN L188 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 07:49:16,479 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:49:16,906 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 07:49:17,211 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:49:17,583 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:49:18,058 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:49:18,365 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:49:18,658 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:49:19,055 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:49:19,662 WARN L188 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:49:19,989 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:49:20,493 WARN L188 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 07:49:20,848 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:49:21,142 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:49:22,551 WARN L188 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 07:49:23,066 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2019-09-10 07:49:23,509 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:49:24,010 WARN L188 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:49:24,337 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:49:24,708 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 07:49:25,061 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:49:25,538 WARN L188 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 07:49:25,995 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:49:26,388 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-10 07:49:26,753 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 07:49:27,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:49:27,211 INFO L93 Difference]: Finished difference Result 44619 states and 57129 transitions. [2019-09-10 07:49:27,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2019-09-10 07:49:27,211 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 136 [2019-09-10 07:49:27,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:49:27,250 INFO L225 Difference]: With dead ends: 44619 [2019-09-10 07:49:27,250 INFO L226 Difference]: Without dead ends: 44619 [2019-09-10 07:49:27,251 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 212 SyntacticMatches, 42 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3090 ImplicationChecksByTransitivity, 32.7s TimeCoverageRelationStatistics Valid=2428, Invalid=8078, Unknown=0, NotChecked=0, Total=10506 [2019-09-10 07:49:27,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44619 states. [2019-09-10 07:49:27,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44619 to 28837. [2019-09-10 07:49:27,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28837 states. [2019-09-10 07:49:27,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28837 states to 28837 states and 36930 transitions. [2019-09-10 07:49:27,517 INFO L78 Accepts]: Start accepts. Automaton has 28837 states and 36930 transitions. Word has length 136 [2019-09-10 07:49:27,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:49:27,518 INFO L475 AbstractCegarLoop]: Abstraction has 28837 states and 36930 transitions. [2019-09-10 07:49:27,518 INFO L476 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-09-10 07:49:27,518 INFO L276 IsEmpty]: Start isEmpty. Operand 28837 states and 36930 transitions. [2019-09-10 07:49:27,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2019-09-10 07:49:27,525 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:49:27,525 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:49:27,525 INFO L418 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:49:27,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:49:27,525 INFO L82 PathProgramCache]: Analyzing trace with hash -878103373, now seen corresponding path program 1 times [2019-09-10 07:49:27,526 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:49:27,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:49:27,527 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:49:27,527 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:49:27,527 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:49:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:49:27,606 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-09-10 07:49:27,607 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:49:27,607 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:49:27,607 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:49:27,607 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:49:27,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:49:27,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:49:27,608 INFO L87 Difference]: Start difference. First operand 28837 states and 36930 transitions. Second operand 3 states. [2019-09-10 07:49:27,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:49:27,649 INFO L93 Difference]: Finished difference Result 13092 states and 16482 transitions. [2019-09-10 07:49:27,649 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:49:27,649 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 136 [2019-09-10 07:49:27,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:49:27,664 INFO L225 Difference]: With dead ends: 13092 [2019-09-10 07:49:27,664 INFO L226 Difference]: Without dead ends: 13092 [2019-09-10 07:49:27,665 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 [2019-09-10 07:49:27,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13092 states. [2019-09-10 07:49:27,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13092 to 13090. [2019-09-10 07:49:27,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13090 states. [2019-09-10 07:49:27,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13090 states to 13090 states and 16481 transitions. [2019-09-10 07:49:27,792 INFO L78 Accepts]: Start accepts. Automaton has 13090 states and 16481 transitions. Word has length 136 [2019-09-10 07:49:27,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:49:27,792 INFO L475 AbstractCegarLoop]: Abstraction has 13090 states and 16481 transitions. [2019-09-10 07:49:27,793 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:49:27,793 INFO L276 IsEmpty]: Start isEmpty. Operand 13090 states and 16481 transitions. [2019-09-10 07:49:27,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2019-09-10 07:49:27,799 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:49:27,799 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-10 07:49:27,800 INFO L418 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:49:27,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:49:27,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1433554779, now seen corresponding path program 1 times [2019-09-10 07:49:27,800 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:49:27,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:49:27,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:49:27,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:49:27,801 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:49:27,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:49:28,130 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 40 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:49:28,130 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:49:28,131 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:49:28,131 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 138 with the following transitions: [2019-09-10 07:49:28,131 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [57], [60], [63], [66], [69], [72], [76], [79], [82], [85], [87], [89], [92], [95], [98], [100], [102], [105], [108], [111], [113], [115], [118], [121], [124], [126], [128], [131], [138], [140], [143], [144], [146], [155], [158], [162], [164], [167], [173], [176], [179], [181], [189], [192], [198], [201], [204], [206], [223], [226], [229], [231], [246], [248], [251], [254], [256], [290], [291], [295], [296], [297] [2019-09-10 07:49:28,137 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:49:28,137 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:49:28,153 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:49:28,566 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:49:28,566 INFO L272 AbstractInterpreter]: Visited 81 different actions 1098 times. Merged at 51 different actions 852 times. Widened at 21 different actions 160 times. Performed 3823 root evaluator evaluations with a maximum evaluation depth of 5. Performed 3823 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 155 fixpoints after 27 different actions. Largest state had 112 variables. [2019-09-10 07:49:28,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:49:28,567 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:49:28,567 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:49:28,567 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:49:28,578 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:49:28,578 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:49:28,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:49:28,692 INFO L256 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-10 07:49:28,694 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:49:28,895 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,021 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,392 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 46 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:49:29,392 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:49:29,602 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,602 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,603 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,603 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,604 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,604 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,606 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,608 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,608 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,609 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,609 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,610 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,611 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,611 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,612 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,612 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,613 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,613 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,614 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,614 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,614 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,615 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,616 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,616 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,617 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,618 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,619 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,619 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,620 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,621 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,621 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,622 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,623 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:29,623 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:31,518 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:31,775 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 40 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:49:31,779 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:49:31,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2019-09-10 07:49:31,780 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:49:31,780 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-10 07:49:31,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-10 07:49:31,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=558, Unknown=0, NotChecked=0, Total=650 [2019-09-10 07:49:31,781 INFO L87 Difference]: Start difference. First operand 13090 states and 16481 transitions. Second operand 20 states. [2019-09-10 07:49:31,996 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2019-09-10 07:49:32,521 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2019-09-10 07:49:32,751 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-09-10 07:49:33,196 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 07:49:33,414 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:49:33,774 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:49:34,012 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:49:34,380 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:49:34,679 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:49:35,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:49:35,046 INFO L93 Difference]: Finished difference Result 13967 states and 17203 transitions. [2019-09-10 07:49:35,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-10 07:49:35,047 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 137 [2019-09-10 07:49:35,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:49:35,059 INFO L225 Difference]: With dead ends: 13967 [2019-09-10 07:49:35,059 INFO L226 Difference]: Without dead ends: 13967 [2019-09-10 07:49:35,060 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 235 SyntacticMatches, 26 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=316, Invalid=1090, Unknown=0, NotChecked=0, Total=1406 [2019-09-10 07:49:35,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13967 states. [2019-09-10 07:49:35,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13967 to 12252. [2019-09-10 07:49:35,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12252 states. [2019-09-10 07:49:35,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12252 states to 12252 states and 15215 transitions. [2019-09-10 07:49:35,139 INFO L78 Accepts]: Start accepts. Automaton has 12252 states and 15215 transitions. Word has length 137 [2019-09-10 07:49:35,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:49:35,140 INFO L475 AbstractCegarLoop]: Abstraction has 12252 states and 15215 transitions. [2019-09-10 07:49:35,140 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-10 07:49:35,140 INFO L276 IsEmpty]: Start isEmpty. Operand 12252 states and 15215 transitions. [2019-09-10 07:49:35,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-09-10 07:49:35,145 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:49:35,145 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-10 07:49:35,145 INFO L418 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:49:35,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:49:35,146 INFO L82 PathProgramCache]: Analyzing trace with hash 571240160, now seen corresponding path program 1 times [2019-09-10 07:49:35,146 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:49:35,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:49:35,147 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:49:35,147 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:49:35,147 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:49:35,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:49:36,188 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 22 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:49:36,188 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:49:36,188 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:49:36,188 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2019-09-10 07:49:36,189 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [57], [60], [63], [66], [69], [72], [76], [79], [82], [85], [87], [89], [92], [95], [98], [100], [102], [105], [108], [111], [113], [115], [118], [121], [124], [126], [128], [131], [138], [140], [143], [144], [146], [155], [158], [162], [164], [167], [173], [176], [179], [181], [189], [192], [198], [201], [204], [206], [223], [226], [229], [231], [248], [251], [254], [256], [290], [291], [295], [296], [297] [2019-09-10 07:49:36,192 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:49:36,192 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:49:36,200 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:49:36,503 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:49:36,504 INFO L272 AbstractInterpreter]: Visited 80 different actions 996 times. Merged at 50 different actions 775 times. Widened at 18 different actions 144 times. Performed 3424 root evaluator evaluations with a maximum evaluation depth of 5. Performed 3424 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 134 fixpoints after 22 different actions. Largest state had 112 variables. [2019-09-10 07:49:36,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:49:36,504 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:49:36,504 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:49:36,504 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:49:36,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:49:36,516 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:49:36,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:49:36,654 INFO L256 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 47 conjunts are in the unsatisfiable core [2019-09-10 07:49:36,657 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:49:37,361 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:37,448 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:37,538 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:37,539 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:37,539 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:38,209 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:40,189 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 22 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:49:40,190 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:49:41,195 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:41,476 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:41,760 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2019-09-10 07:49:42,165 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 47 [2019-09-10 07:49:42,480 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:42,480 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:42,481 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:49:42,838 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2019-09-10 07:49:43,726 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 22 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:49:43,733 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:49:43,734 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 27, 27] total 66 [2019-09-10 07:49:43,734 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:49:43,734 INFO L454 AbstractCegarLoop]: Interpolant automaton has 44 states [2019-09-10 07:49:43,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2019-09-10 07:49:43,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=265, Invalid=4023, Unknown=2, NotChecked=0, Total=4290 [2019-09-10 07:49:43,735 INFO L87 Difference]: Start difference. First operand 12252 states and 15215 transitions. Second operand 44 states. [2019-09-10 07:49:43,971 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 44 [2019-09-10 07:49:46,386 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 42 [2019-09-10 07:49:46,638 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 38 [2019-09-10 07:49:46,887 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 38 [2019-09-10 07:49:47,184 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 45 [2019-09-10 07:49:47,493 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 49 [2019-09-10 07:49:47,807 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2019-09-10 07:49:48,029 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2019-09-10 07:49:48,439 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2019-09-10 07:49:48,727 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2019-09-10 07:49:49,278 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-09-10 07:49:49,719 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 65 [2019-09-10 07:49:50,007 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-10 07:49:50,258 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 07:49:50,528 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2019-09-10 07:49:50,767 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2019-09-10 07:49:50,978 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-10 07:49:51,364 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2019-09-10 07:49:51,572 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-10 07:49:52,004 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-09-10 07:49:54,431 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2019-09-10 07:49:55,071 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2019-09-10 07:49:57,437 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2019-09-10 07:49:57,692 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-10 07:49:58,210 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2019-09-10 07:49:58,673 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 51 [2019-09-10 07:49:58,908 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 07:49:59,208 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2019-09-10 07:49:59,474 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2019-09-10 07:49:59,848 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2019-09-10 07:50:00,702 WARN L188 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2019-09-10 07:50:01,065 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2019-09-10 07:50:01,300 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2019-09-10 07:50:02,612 WARN L188 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2019-09-10 07:50:03,484 WARN L188 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 51 [2019-09-10 07:50:03,752 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2019-09-10 07:50:04,638 WARN L188 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2019-09-10 07:50:04,823 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-09-10 07:50:05,118 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2019-09-10 07:50:07,129 WARN L188 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 82 DAG size of output: 56 [2019-09-10 07:50:07,556 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-10 07:50:08,353 WARN L188 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 48 [2019-09-10 07:50:08,549 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-10 07:50:08,757 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2019-09-10 07:50:09,141 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 07:50:10,028 WARN L188 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2019-09-10 07:50:10,306 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2019-09-10 07:50:10,556 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-10 07:50:10,760 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-09-10 07:50:11,046 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2019-09-10 07:50:11,277 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-10 07:50:12,036 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 44 [2019-09-10 07:50:17,236 WARN L188 SmtUtils]: Spent 4.82 s on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2019-09-10 07:50:19,567 WARN L188 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 70 DAG size of output: 44 [2019-09-10 07:50:20,328 WARN L188 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2019-09-10 07:50:20,522 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-09-10 07:50:20,728 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-10 07:50:22,656 WARN L188 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 67 DAG size of output: 42 [2019-09-10 07:50:23,274 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 44 [2019-09-10 07:50:23,504 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2019-09-10 07:50:23,796 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-09-10 07:50:24,359 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 36 [2019-09-10 07:50:24,744 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2019-09-10 07:50:25,280 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2019-09-10 07:50:25,877 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 40 [2019-09-10 07:50:26,506 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 36 [2019-09-10 07:50:26,845 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2019-09-10 07:50:28,352 WARN L188 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2019-09-10 07:50:29,171 WARN L188 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 42 [2019-09-10 07:50:30,376 WARN L188 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2019-09-10 07:50:30,602 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-09-10 07:50:31,429 WARN L188 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 44 [2019-09-10 07:50:31,857 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 40 [2019-09-10 07:50:32,643 WARN L188 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 44 [2019-09-10 07:50:32,913 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2019-09-10 07:50:33,897 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2019-09-10 07:50:34,355 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2019-09-10 07:50:34,780 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2019-09-10 07:50:35,512 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2019-09-10 07:50:39,296 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2019-09-10 07:50:40,477 WARN L188 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2019-09-10 07:50:41,209 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2019-09-10 07:50:42,577 WARN L188 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2019-09-10 07:50:43,165 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-09-10 07:50:45,580 WARN L188 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2019-09-10 07:50:47,898 WARN L188 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 74 DAG size of output: 48 [2019-09-10 07:50:48,160 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2019-09-10 07:50:48,352 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2019-09-10 07:50:48,564 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-09-10 07:50:51,874 WARN L188 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2019-09-10 07:50:55,877 WARN L188 SmtUtils]: Spent 3.58 s on a formula simplification. DAG size of input: 67 DAG size of output: 42 [2019-09-10 07:50:56,104 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-09-10 07:51:01,548 WARN L188 SmtUtils]: Spent 5.10 s on a formula simplification. DAG size of input: 74 DAG size of output: 48 [2019-09-10 07:51:01,780 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-09-10 07:51:02,106 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2019-09-10 07:51:04,143 WARN L188 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 70 DAG size of output: 44 [2019-09-10 07:51:04,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:51:04,443 INFO L93 Difference]: Finished difference Result 29586 states and 36816 transitions. [2019-09-10 07:51:04,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 148 states. [2019-09-10 07:51:04,444 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 138 [2019-09-10 07:51:04,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:51:04,469 INFO L225 Difference]: With dead ends: 29586 [2019-09-10 07:51:04,469 INFO L226 Difference]: Without dead ends: 29586 [2019-09-10 07:51:04,471 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 225 SyntacticMatches, 5 SemanticMatches, 205 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12524 ImplicationChecksByTransitivity, 74.2s TimeCoverageRelationStatistics Valid=3630, Invalid=39010, Unknown=2, NotChecked=0, Total=42642 [2019-09-10 07:51:04,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29586 states. [2019-09-10 07:51:04,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29586 to 13898. [2019-09-10 07:51:04,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13898 states. [2019-09-10 07:51:04,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13898 states to 13898 states and 17290 transitions. [2019-09-10 07:51:04,621 INFO L78 Accepts]: Start accepts. Automaton has 13898 states and 17290 transitions. Word has length 138 [2019-09-10 07:51:04,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:51:04,621 INFO L475 AbstractCegarLoop]: Abstraction has 13898 states and 17290 transitions. [2019-09-10 07:51:04,621 INFO L476 AbstractCegarLoop]: Interpolant automaton has 44 states. [2019-09-10 07:51:04,621 INFO L276 IsEmpty]: Start isEmpty. Operand 13898 states and 17290 transitions. [2019-09-10 07:51:04,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-09-10 07:51:04,624 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:51:04,624 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-10 07:51:04,624 INFO L418 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:51:04,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:51:04,625 INFO L82 PathProgramCache]: Analyzing trace with hash 800720233, now seen corresponding path program 1 times [2019-09-10 07:51:04,625 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:51:04,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:51:04,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:51:04,626 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:51:04,626 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:51:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:51:04,683 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-09-10 07:51:04,685 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:51:04,686 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 07:51:04,686 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:51:04,686 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 07:51:04,686 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 07:51:04,687 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 07:51:04,687 INFO L87 Difference]: Start difference. First operand 13898 states and 17290 transitions. Second operand 4 states. [2019-09-10 07:51:04,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:51:04,765 INFO L93 Difference]: Finished difference Result 6934 states and 8578 transitions. [2019-09-10 07:51:04,765 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 07:51:04,766 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 138 [2019-09-10 07:51:04,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:51:04,773 INFO L225 Difference]: With dead ends: 6934 [2019-09-10 07:51:04,773 INFO L226 Difference]: Without dead ends: 6934 [2019-09-10 07:51:04,774 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:51:04,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6934 states. [2019-09-10 07:51:04,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6934 to 6932. [2019-09-10 07:51:04,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6932 states. [2019-09-10 07:51:04,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6932 states to 6932 states and 8577 transitions. [2019-09-10 07:51:04,837 INFO L78 Accepts]: Start accepts. Automaton has 6932 states and 8577 transitions. Word has length 138 [2019-09-10 07:51:04,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:51:04,837 INFO L475 AbstractCegarLoop]: Abstraction has 6932 states and 8577 transitions. [2019-09-10 07:51:04,837 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 07:51:04,837 INFO L276 IsEmpty]: Start isEmpty. Operand 6932 states and 8577 transitions. [2019-09-10 07:51:04,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2019-09-10 07:51:04,841 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:51:04,841 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-10 07:51:04,841 INFO L418 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:51:04,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:51:04,842 INFO L82 PathProgramCache]: Analyzing trace with hash -1631200924, now seen corresponding path program 1 times [2019-09-10 07:51:04,842 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:51:04,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:51:04,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:51:04,844 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:51:04,844 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:51:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:51:05,505 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 31 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:51:05,506 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:51:05,506 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:51:05,506 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 139 with the following transitions: [2019-09-10 07:51:05,506 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [57], [60], [63], [66], [69], [72], [76], [79], [82], [87], [89], [92], [95], [98], [100], [102], [105], [108], [111], [113], [115], [118], [121], [124], [126], [128], [131], [138], [140], [143], [144], [146], [155], [158], [162], [164], [167], [173], [176], [179], [181], [198], [201], [204], [206], [221], [223], [226], [229], [231], [239], [242], [244], [248], [251], [254], [256], [290], [291], [295], [296], [297] [2019-09-10 07:51:05,509 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:51:05,509 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:51:05,519 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:51:05,876 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:51:05,876 INFO L272 AbstractInterpreter]: Visited 81 different actions 908 times. Merged at 51 different actions 696 times. Widened at 17 different actions 107 times. Performed 3290 root evaluator evaluations with a maximum evaluation depth of 5. Performed 3290 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 121 fixpoints after 24 different actions. Largest state had 112 variables. [2019-09-10 07:51:05,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:51:05,876 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:51:05,877 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:51:05,877 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:51:05,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:51:05,888 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:51:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:51:06,005 INFO L256 TraceCheckSpWp]: Trace formula consists of 808 conjuncts, 24 conjunts are in the unsatisfiable core [2019-09-10 07:51:06,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:51:06,356 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:06,828 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:06,828 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:06,828 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,191 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 33 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:51:07,191 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:51:07,663 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,664 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,664 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,665 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,665 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,666 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,666 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,667 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,668 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,668 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,669 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,669 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,670 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,670 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,670 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,671 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,671 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,671 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,672 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,672 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,673 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,673 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,673 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,673 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,674 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,675 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,675 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,676 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,676 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,677 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,677 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,678 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,678 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,679 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,679 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,680 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,681 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,681 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,682 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,682 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,682 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,683 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,684 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,684 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,685 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,685 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,686 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,686 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,687 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,687 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,688 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,689 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,689 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,689 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,690 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,690 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,691 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,691 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,692 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,692 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,693 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,693 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,694 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,694 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,695 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,695 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,696 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,696 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,697 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,697 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,698 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,698 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,699 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,699 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,700 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,700 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,701 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,701 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,702 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,702 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,703 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,703 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,704 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,704 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:51:07,859 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 63 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (16)] Exception during sending of exit command (exit): Broken pipe [2019-09-10 07:51:07,871 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:51:07,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 14, 12] total 36 [2019-09-10 07:51:07,872 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:51:07,873 INFO L454 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-09-10 07:51:07,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-09-10 07:51:07,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=1150, Unknown=0, NotChecked=0, Total=1260 [2019-09-10 07:51:07,874 INFO L87 Difference]: Start difference. First operand 6932 states and 8577 transitions. Second operand 30 states. [2019-09-10 07:51:08,707 WARN L188 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 83 [2019-09-10 07:51:09,096 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 07:51:09,610 WARN L188 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2019-09-10 07:51:09,933 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-10 07:51:10,551 WARN L188 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2019-09-10 07:51:11,037 WARN L188 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-10 07:51:11,595 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-09-10 07:51:12,046 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2019-09-10 07:51:14,502 WARN L188 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2019-09-10 07:51:15,083 WARN L188 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 07:51:15,403 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2019-09-10 07:51:16,300 WARN L188 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2019-09-10 07:51:19,090 WARN L188 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 105 DAG size of output: 91 [2019-09-10 07:51:20,318 WARN L188 SmtUtils]: Spent 825.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 95 [2019-09-10 07:51:21,353 WARN L188 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 97 [2019-09-10 07:51:22,038 WARN L188 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 84 [2019-09-10 07:51:22,618 WARN L188 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2019-09-10 07:51:23,189 WARN L188 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 94 [2019-09-10 07:51:23,678 WARN L188 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2019-09-10 07:51:24,525 WARN L188 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 91 [2019-09-10 07:51:25,602 WARN L188 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-10 07:51:26,332 WARN L188 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2019-09-10 07:51:26,925 WARN L188 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 93 [2019-09-10 07:51:28,399 WARN L188 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 134 DAG size of output: 117 [2019-09-10 07:51:31,166 WARN L188 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 110 DAG size of output: 90 [2019-09-10 07:51:32,195 WARN L188 SmtUtils]: Spent 931.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 114 [2019-09-10 07:51:33,053 WARN L188 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 104 [2019-09-10 07:51:34,041 WARN L188 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 112 [2019-09-10 07:51:34,796 WARN L188 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 85 [2019-09-10 07:51:36,129 WARN L188 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 131 DAG size of output: 114 [2019-09-10 07:51:37,808 WARN L188 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 132 DAG size of output: 114 [2019-09-10 07:51:38,760 WARN L188 SmtUtils]: Spent 892.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2019-09-10 07:51:40,992 WARN L188 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 134 DAG size of output: 117 [2019-09-10 07:51:41,579 WARN L188 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 96 [2019-09-10 07:51:42,405 WARN L188 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 114 [2019-09-10 07:51:43,190 WARN L188 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 96 [2019-09-10 07:51:43,981 WARN L188 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 114 [2019-09-10 07:51:44,681 WARN L188 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 88 [2019-09-10 07:51:46,307 WARN L188 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 118 [2019-09-10 07:51:47,393 WARN L188 SmtUtils]: Spent 906.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 120 [2019-09-10 07:51:48,581 WARN L188 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 130 DAG size of output: 107 [2019-09-10 07:51:49,549 WARN L188 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 106 [2019-09-10 07:51:50,492 WARN L188 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 93 [2019-09-10 07:51:51,639 WARN L188 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 104 [2019-09-10 07:51:52,409 WARN L188 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 117 [2019-09-10 07:51:53,973 WARN L188 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 110 DAG size of output: 90 [2019-09-10 07:51:55,567 WARN L188 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 127 DAG size of output: 101 [2019-09-10 07:51:55,992 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93