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.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 07:26:44,702 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 07:26:44,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 07:26:44,717 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-10 07:26:44,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 07:26:44,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 07:26:44,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 07:26:44,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 07:26:44,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 07:26:44,751 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 07:26:44,751 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 07:26:44,752 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 07:26:44,752 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 07:26:44,753 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 07:26:44,754 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 07:26:44,755 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 07:26:44,771 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 07:26:44,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 07:26:44,771 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 07:26:44,772 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 07:26:44,772 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 07:26:44,772 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 07:26:44,773 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 07:26:44,773 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 07:26:44,773 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 07:26:44,773 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 07:26:44,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 07:26:44,774 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 07:26:44,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 07:26:44,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 07:26:44,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 07:26:44,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 07:26:44,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 07:26:44,776 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 07:26:44,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 07:26:44,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 07:26:44,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 07:26:44,776 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 07:26:44,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 07:26:44,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 07:26:44,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 07:26:44,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 07:26:44,778 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 07:26:44,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 07:26:44,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 07:26:44,778 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 07:26:44,812 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 07:26:44,832 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 07:26:44,836 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 07:26:44,839 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 07:26:44,840 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 07:26:44,841 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2019-09-10 07:26:44,905 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2501efd1/90147e42419c4aa08e23969df8083876/FLAGae4b4154d [2019-09-10 07:26:45,411 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 07:26:45,412 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2019-09-10 07:26:45,420 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2501efd1/90147e42419c4aa08e23969df8083876/FLAGae4b4154d [2019-09-10 07:26:45,730 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2501efd1/90147e42419c4aa08e23969df8083876 [2019-09-10 07:26:45,739 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 07:26:45,740 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 07:26:45,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 07:26:45,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 07:26:45,744 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 07:26:45,745 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 07:26:45" (1/1) ... [2019-09-10 07:26:45,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71fd1d0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:26:45, skipping insertion in model container [2019-09-10 07:26:45,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 07:26:45" (1/1) ... [2019-09-10 07:26:45,756 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 07:26:45,804 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 07:26:46,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 07:26:46,155 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 07:26:46,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 07:26:46,221 INFO L192 MainTranslator]: Completed translation [2019-09-10 07:26:46,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:26:46 WrapperNode [2019-09-10 07:26:46,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 07:26:46,222 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 07:26:46,222 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 07:26:46,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 07:26:46,240 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:26:46" (1/1) ... [2019-09-10 07:26:46,240 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:26:46" (1/1) ... [2019-09-10 07:26:46,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:26:46" (1/1) ... [2019-09-10 07:26:46,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:26:46" (1/1) ... [2019-09-10 07:26:46,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:26:46" (1/1) ... [2019-09-10 07:26:46,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:26:46" (1/1) ... [2019-09-10 07:26:46,267 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:26:46" (1/1) ... [2019-09-10 07:26:46,271 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 07:26:46,271 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 07:26:46,272 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 07:26:46,272 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 07:26:46,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:26:46" (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 07:26:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 07:26:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 07:26:46,325 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 07:26:46,325 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 07:26:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-10 07:26:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-10 07:26:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-09-10 07:26:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-10 07:26:46,326 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 07:26:46,327 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-10 07:26:46,327 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-10 07:26:46,327 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-10 07:26:46,327 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-10 07:26:46,327 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-10 07:26:46,327 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-10 07:26:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-10 07:26:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 07:26:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 07:26:46,328 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 07:26:46,866 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 07:26:46,866 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 07:26:46,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 07:26:46 BoogieIcfgContainer [2019-09-10 07:26:46,869 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 07:26:46,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 07:26:46,870 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 07:26:46,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 07:26:46,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 07:26:45" (1/3) ... [2019-09-10 07:26:46,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198f09f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 07:26:46, skipping insertion in model container [2019-09-10 07:26:46,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:26:46" (2/3) ... [2019-09-10 07:26:46,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@198f09f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 07:26:46, skipping insertion in model container [2019-09-10 07:26:46,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 07:26:46" (3/3) ... [2019-09-10 07:26:46,882 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2019-09-10 07:26:46,893 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 07:26:46,911 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 07:26:46,928 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 07:26:46,958 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 07:26:46,958 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 07:26:46,958 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 07:26:46,958 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 07:26:46,959 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 07:26:46,960 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 07:26:46,960 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 07:26:46,961 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 07:26:46,984 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2019-09-10 07:26:46,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-09-10 07:26:46,993 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:26:46,994 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:26:46,996 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:26:47,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:26:47,001 INFO L82 PathProgramCache]: Analyzing trace with hash -1783830804, now seen corresponding path program 1 times [2019-09-10 07:26:47,003 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:26:47,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:47,058 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:26:47,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:47,058 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:26:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:26:47,347 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 07:26:47,349 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:26:47,349 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:26:47,350 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:26:47,355 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:26:47,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:26:47,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:26:47,373 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 3 states. [2019-09-10 07:26:47,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:26:47,470 INFO L93 Difference]: Finished difference Result 107 states and 164 transitions. [2019-09-10 07:26:47,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:26:47,474 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2019-09-10 07:26:47,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:26:47,495 INFO L225 Difference]: With dead ends: 107 [2019-09-10 07:26:47,495 INFO L226 Difference]: Without dead ends: 99 [2019-09-10 07:26:47,499 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 07:26:47,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-09-10 07:26:47,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2019-09-10 07:26:47,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-09-10 07:26:47,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 140 transitions. [2019-09-10 07:26:47,580 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 140 transitions. Word has length 41 [2019-09-10 07:26:47,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:26:47,582 INFO L475 AbstractCegarLoop]: Abstraction has 97 states and 140 transitions. [2019-09-10 07:26:47,582 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:26:47,582 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 140 transitions. [2019-09-10 07:26:47,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-09-10 07:26:47,588 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:26:47,588 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:26:47,589 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:26:47,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:26:47,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1976266081, now seen corresponding path program 1 times [2019-09-10 07:26:47,590 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:26:47,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:47,593 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:26:47,593 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:47,593 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:26:47,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:26:47,734 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 07:26:47,735 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:26:47,735 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:26:47,735 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:26:47,738 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:26:47,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:26:47,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:26:47,739 INFO L87 Difference]: Start difference. First operand 97 states and 140 transitions. Second operand 3 states. [2019-09-10 07:26:47,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:26:47,778 INFO L93 Difference]: Finished difference Result 155 states and 229 transitions. [2019-09-10 07:26:47,781 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:26:47,782 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2019-09-10 07:26:47,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:26:47,785 INFO L225 Difference]: With dead ends: 155 [2019-09-10 07:26:47,785 INFO L226 Difference]: Without dead ends: 155 [2019-09-10 07:26:47,787 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 07:26:47,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-09-10 07:26:47,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 153. [2019-09-10 07:26:47,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-09-10 07:26:47,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 228 transitions. [2019-09-10 07:26:47,804 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 228 transitions. Word has length 42 [2019-09-10 07:26:47,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:26:47,805 INFO L475 AbstractCegarLoop]: Abstraction has 153 states and 228 transitions. [2019-09-10 07:26:47,805 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:26:47,805 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 228 transitions. [2019-09-10 07:26:47,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-09-10 07:26:47,807 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:26:47,807 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:26:47,808 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:26:47,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:26:47,808 INFO L82 PathProgramCache]: Analyzing trace with hash -356684214, now seen corresponding path program 1 times [2019-09-10 07:26:47,808 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:26:47,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:47,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:26:47,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:47,811 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:26:47,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:26:47,953 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 07:26:47,954 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:26:47,954 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:26:47,954 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:26:47,955 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:26:47,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:26:47,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:26:47,956 INFO L87 Difference]: Start difference. First operand 153 states and 228 transitions. Second operand 5 states. [2019-09-10 07:26:48,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:26:48,160 INFO L93 Difference]: Finished difference Result 283 states and 429 transitions. [2019-09-10 07:26:48,162 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:26:48,162 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2019-09-10 07:26:48,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:26:48,165 INFO L225 Difference]: With dead ends: 283 [2019-09-10 07:26:48,166 INFO L226 Difference]: Without dead ends: 283 [2019-09-10 07:26:48,170 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 07:26:48,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2019-09-10 07:26:48,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 281. [2019-09-10 07:26:48,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2019-09-10 07:26:48,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 428 transitions. [2019-09-10 07:26:48,195 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 428 transitions. Word has length 43 [2019-09-10 07:26:48,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:26:48,196 INFO L475 AbstractCegarLoop]: Abstraction has 281 states and 428 transitions. [2019-09-10 07:26:48,196 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:26:48,196 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 428 transitions. [2019-09-10 07:26:48,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-09-10 07:26:48,200 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:26:48,200 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:26:48,200 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:26:48,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:26:48,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1803713809, now seen corresponding path program 1 times [2019-09-10 07:26:48,201 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:26:48,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:48,203 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:26:48,203 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:48,203 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:26:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:26:48,282 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 07:26:48,282 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:26:48,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:26:48,283 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:26:48,283 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:26:48,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:26:48,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:26:48,284 INFO L87 Difference]: Start difference. First operand 281 states and 428 transitions. Second operand 5 states. [2019-09-10 07:26:48,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:26:48,374 INFO L93 Difference]: Finished difference Result 281 states and 424 transitions. [2019-09-10 07:26:48,374 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:26:48,375 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2019-09-10 07:26:48,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:26:48,377 INFO L225 Difference]: With dead ends: 281 [2019-09-10 07:26:48,377 INFO L226 Difference]: Without dead ends: 281 [2019-09-10 07:26:48,378 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 07:26:48,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2019-09-10 07:26:48,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2019-09-10 07:26:48,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2019-09-10 07:26:48,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 424 transitions. [2019-09-10 07:26:48,391 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 424 transitions. Word has length 43 [2019-09-10 07:26:48,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:26:48,392 INFO L475 AbstractCegarLoop]: Abstraction has 281 states and 424 transitions. [2019-09-10 07:26:48,392 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:26:48,392 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 424 transitions. [2019-09-10 07:26:48,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-09-10 07:26:48,394 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:26:48,394 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:26:48,394 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:26:48,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:26:48,394 INFO L82 PathProgramCache]: Analyzing trace with hash 649222954, now seen corresponding path program 1 times [2019-09-10 07:26:48,395 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:26:48,396 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:48,396 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:26:48,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:48,397 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:26:48,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:26:48,499 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 07:26:48,499 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:26:48,499 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:26:48,500 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:26:48,500 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:26:48,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:26:48,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:26:48,501 INFO L87 Difference]: Start difference. First operand 281 states and 424 transitions. Second operand 5 states. [2019-09-10 07:26:48,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:26:48,594 INFO L93 Difference]: Finished difference Result 1055 states and 1611 transitions. [2019-09-10 07:26:48,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:26:48,595 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2019-09-10 07:26:48,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:26:48,602 INFO L225 Difference]: With dead ends: 1055 [2019-09-10 07:26:48,602 INFO L226 Difference]: Without dead ends: 1055 [2019-09-10 07:26:48,603 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-09-10 07:26:48,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2019-09-10 07:26:48,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 793. [2019-09-10 07:26:48,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 793 states. [2019-09-10 07:26:48,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1208 transitions. [2019-09-10 07:26:48,633 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1208 transitions. Word has length 43 [2019-09-10 07:26:48,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:26:48,634 INFO L475 AbstractCegarLoop]: Abstraction has 793 states and 1208 transitions. [2019-09-10 07:26:48,634 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:26:48,635 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1208 transitions. [2019-09-10 07:26:48,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-09-10 07:26:48,636 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:26:48,636 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:26:48,637 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:26:48,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:26:48,637 INFO L82 PathProgramCache]: Analyzing trace with hash 239806853, now seen corresponding path program 1 times [2019-09-10 07:26:48,637 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:26:48,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:48,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:26:48,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:48,640 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:26:48,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:26:48,697 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 07:26:48,697 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:26:48,697 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:26:48,698 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:26:48,698 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:26:48,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:26:48,699 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:26:48,699 INFO L87 Difference]: Start difference. First operand 793 states and 1208 transitions. Second operand 3 states. [2019-09-10 07:26:48,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:26:48,733 INFO L93 Difference]: Finished difference Result 1115 states and 1651 transitions. [2019-09-10 07:26:48,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:26:48,734 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2019-09-10 07:26:48,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:26:48,740 INFO L225 Difference]: With dead ends: 1115 [2019-09-10 07:26:48,741 INFO L226 Difference]: Without dead ends: 1115 [2019-09-10 07:26:48,741 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 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 07:26:48,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1115 states. [2019-09-10 07:26:48,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1115 to 1101. [2019-09-10 07:26:48,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1101 states. [2019-09-10 07:26:48,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1101 states to 1101 states and 1638 transitions. [2019-09-10 07:26:48,777 INFO L78 Accepts]: Start accepts. Automaton has 1101 states and 1638 transitions. Word has length 45 [2019-09-10 07:26:48,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:26:48,778 INFO L475 AbstractCegarLoop]: Abstraction has 1101 states and 1638 transitions. [2019-09-10 07:26:48,778 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:26:48,778 INFO L276 IsEmpty]: Start isEmpty. Operand 1101 states and 1638 transitions. [2019-09-10 07:26:48,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-09-10 07:26:48,779 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:26:48,779 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:26:48,780 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:26:48,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:26:48,780 INFO L82 PathProgramCache]: Analyzing trace with hash 259856196, now seen corresponding path program 1 times [2019-09-10 07:26:48,780 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:26:48,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:48,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:26:48,782 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:48,782 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:26:48,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:26:48,999 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 07:26:48,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:26:48,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:26:48,999 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:26:49,000 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:26:49,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:26:49,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:26:49,001 INFO L87 Difference]: Start difference. First operand 1101 states and 1638 transitions. Second operand 5 states. [2019-09-10 07:26:49,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:26:49,068 INFO L93 Difference]: Finished difference Result 1821 states and 2696 transitions. [2019-09-10 07:26:49,069 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:26:49,069 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2019-09-10 07:26:49,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:26:49,079 INFO L225 Difference]: With dead ends: 1821 [2019-09-10 07:26:49,079 INFO L226 Difference]: Without dead ends: 1821 [2019-09-10 07:26:49,080 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:26:49,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1821 states. [2019-09-10 07:26:49,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1821 to 1461. [2019-09-10 07:26:49,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1461 states. [2019-09-10 07:26:49,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2152 transitions. [2019-09-10 07:26:49,131 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2152 transitions. Word has length 45 [2019-09-10 07:26:49,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:26:49,132 INFO L475 AbstractCegarLoop]: Abstraction has 1461 states and 2152 transitions. [2019-09-10 07:26:49,132 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:26:49,132 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2152 transitions. [2019-09-10 07:26:49,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 07:26:49,134 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:26:49,134 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:26:49,134 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:26:49,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:26:49,135 INFO L82 PathProgramCache]: Analyzing trace with hash -536301941, now seen corresponding path program 1 times [2019-09-10 07:26:49,135 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:26:49,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:49,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:26:49,137 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:49,137 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:26:49,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:26:49,263 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 07:26:49,263 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:26:49,263 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:26:49,263 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:26:49,264 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:26:49,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:26:49,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:26:49,265 INFO L87 Difference]: Start difference. First operand 1461 states and 2152 transitions. Second operand 5 states. [2019-09-10 07:26:49,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:26:49,327 INFO L93 Difference]: Finished difference Result 2810 states and 4082 transitions. [2019-09-10 07:26:49,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 07:26:49,328 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2019-09-10 07:26:49,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:26:49,342 INFO L225 Difference]: With dead ends: 2810 [2019-09-10 07:26:49,342 INFO L226 Difference]: Without dead ends: 2810 [2019-09-10 07:26:49,342 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 07:26:49,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2019-09-10 07:26:49,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 1541. [2019-09-10 07:26:49,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1541 states. [2019-09-10 07:26:49,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 2228 transitions. [2019-09-10 07:26:49,394 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 2228 transitions. Word has length 46 [2019-09-10 07:26:49,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:26:49,394 INFO L475 AbstractCegarLoop]: Abstraction has 1541 states and 2228 transitions. [2019-09-10 07:26:49,394 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:26:49,394 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 2228 transitions. [2019-09-10 07:26:49,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 07:26:49,395 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:26:49,396 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:26:49,396 INFO L418 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:26:49,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:26:49,396 INFO L82 PathProgramCache]: Analyzing trace with hash -121732072, now seen corresponding path program 1 times [2019-09-10 07:26:49,396 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:26:49,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:49,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:26:49,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:49,398 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:26:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:26:49,430 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 07:26:49,431 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:26:49,431 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:26:49,431 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:26:49,431 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:26:49,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:26:49,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:26:49,432 INFO L87 Difference]: Start difference. First operand 1541 states and 2228 transitions. Second operand 3 states. [2019-09-10 07:26:49,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:26:49,460 INFO L93 Difference]: Finished difference Result 2313 states and 3327 transitions. [2019-09-10 07:26:49,461 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:26:49,461 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2019-09-10 07:26:49,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:26:49,472 INFO L225 Difference]: With dead ends: 2313 [2019-09-10 07:26:49,472 INFO L226 Difference]: Without dead ends: 2313 [2019-09-10 07:26:49,472 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 07:26:49,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2313 states. [2019-09-10 07:26:49,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2313 to 2311. [2019-09-10 07:26:49,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2311 states. [2019-09-10 07:26:49,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2311 states to 2311 states and 3326 transitions. [2019-09-10 07:26:49,525 INFO L78 Accepts]: Start accepts. Automaton has 2311 states and 3326 transitions. Word has length 46 [2019-09-10 07:26:49,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:26:49,525 INFO L475 AbstractCegarLoop]: Abstraction has 2311 states and 3326 transitions. [2019-09-10 07:26:49,525 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:26:49,525 INFO L276 IsEmpty]: Start isEmpty. Operand 2311 states and 3326 transitions. [2019-09-10 07:26:49,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-10 07:26:49,527 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:26:49,527 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:26:49,527 INFO L418 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:26:49,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:26:49,528 INFO L82 PathProgramCache]: Analyzing trace with hash -1242266490, now seen corresponding path program 1 times [2019-09-10 07:26:49,528 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:26:49,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:49,529 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:26:49,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:26:49,530 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:26:49,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:26:49,597 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:26:49,597 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:26:49,598 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:26:49,599 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 66 with the following transitions: [2019-09-10 07:26:49,600 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [53], [71], [74], [82], [84], [87], [90], [95], [97], [100], [107], [109], [112], [113], [115], [124], [127], [131], [133], [136], [142], [145], [148], [150], [165], [167], [170], [173], [175], [194], [197], [200], [202], [228], [229], [233], [234], [235] [2019-09-10 07:26:49,644 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:26:49,644 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:26:49,766 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:26:49,956 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 07:26:49,959 INFO L272 AbstractInterpreter]: Visited 55 different actions 150 times. Merged at 30 different actions 83 times. Never widened. Performed 562 root evaluator evaluations with a maximum evaluation depth of 5. Performed 562 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 7 fixpoints after 4 different actions. Largest state had 87 variables. [2019-09-10 07:26:49,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:26:49,972 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 07:26:50,143 INFO L227 lantSequenceWeakener]: Weakened 7 states. On average, predicates are now at 91.35% of their original sizes. [2019-09-10 07:26:50,144 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 07:26:53,164 INFO L420 sIntCurrentIteration]: We unified 64 AI predicates to 64 [2019-09-10 07:26:53,164 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 07:26:53,165 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 07:26:53,165 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [40] imperfect sequences [5] total 43 [2019-09-10 07:26:53,166 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:26:53,166 INFO L454 AbstractCegarLoop]: Interpolant automaton has 40 states [2019-09-10 07:26:53,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2019-09-10 07:26:53,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=1334, Unknown=0, NotChecked=0, Total=1560 [2019-09-10 07:26:53,168 INFO L87 Difference]: Start difference. First operand 2311 states and 3326 transitions. Second operand 40 states. [2019-09-10 07:27:00,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:00,853 INFO L93 Difference]: Finished difference Result 3888 states and 5614 transitions. [2019-09-10 07:27:00,853 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-09-10 07:27:00,854 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 65 [2019-09-10 07:27:00,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:00,872 INFO L225 Difference]: With dead ends: 3888 [2019-09-10 07:27:00,873 INFO L226 Difference]: Without dead ends: 3888 [2019-09-10 07:27:00,875 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=270, Invalid=1800, Unknown=0, NotChecked=0, Total=2070 [2019-09-10 07:27:00,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3888 states. [2019-09-10 07:27:00,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3888 to 1906. [2019-09-10 07:27:00,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1906 states. [2019-09-10 07:27:00,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1906 states to 1906 states and 2753 transitions. [2019-09-10 07:27:00,968 INFO L78 Accepts]: Start accepts. Automaton has 1906 states and 2753 transitions. Word has length 65 [2019-09-10 07:27:00,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:00,970 INFO L475 AbstractCegarLoop]: Abstraction has 1906 states and 2753 transitions. [2019-09-10 07:27:00,970 INFO L476 AbstractCegarLoop]: Interpolant automaton has 40 states. [2019-09-10 07:27:00,970 INFO L276 IsEmpty]: Start isEmpty. Operand 1906 states and 2753 transitions. [2019-09-10 07:27:00,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-10 07:27:00,971 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:00,972 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:27:00,973 INFO L418 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:00,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:00,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1874787643, now seen corresponding path program 1 times [2019-09-10 07:27:00,973 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:00,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:00,975 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:00,975 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:00,975 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:01,107 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 07:27:01,108 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:01,108 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:27:01,108 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:01,109 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:27:01,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:27:01,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:27:01,109 INFO L87 Difference]: Start difference. First operand 1906 states and 2753 transitions. Second operand 5 states. [2019-09-10 07:27:01,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:01,193 INFO L93 Difference]: Finished difference Result 2840 states and 4140 transitions. [2019-09-10 07:27:01,194 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:27:01,194 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2019-09-10 07:27:01,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:01,211 INFO L225 Difference]: With dead ends: 2840 [2019-09-10 07:27:01,212 INFO L226 Difference]: Without dead ends: 2840 [2019-09-10 07:27:01,212 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:27:01,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2840 states. [2019-09-10 07:27:01,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2840 to 2370. [2019-09-10 07:27:01,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2370 states. [2019-09-10 07:27:01,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2370 states to 2370 states and 3437 transitions. [2019-09-10 07:27:01,276 INFO L78 Accepts]: Start accepts. Automaton has 2370 states and 3437 transitions. Word has length 66 [2019-09-10 07:27:01,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:01,277 INFO L475 AbstractCegarLoop]: Abstraction has 2370 states and 3437 transitions. [2019-09-10 07:27:01,277 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:27:01,277 INFO L276 IsEmpty]: Start isEmpty. Operand 2370 states and 3437 transitions. [2019-09-10 07:27:01,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-10 07:27:01,279 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:01,279 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:27:01,280 INFO L418 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:01,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:01,280 INFO L82 PathProgramCache]: Analyzing trace with hash -2047653759, now seen corresponding path program 1 times [2019-09-10 07:27:01,280 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:01,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:01,283 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:01,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:01,283 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:01,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:01,359 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-10 07:27:01,359 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:27:01,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:27:01,360 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:27:01,360 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:27:01,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:27:01,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:27:01,361 INFO L87 Difference]: Start difference. First operand 2370 states and 3437 transitions. Second operand 5 states. [2019-09-10 07:27:01,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:01,457 INFO L93 Difference]: Finished difference Result 3304 states and 4824 transitions. [2019-09-10 07:27:01,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:27:01,458 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2019-09-10 07:27:01,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:01,475 INFO L225 Difference]: With dead ends: 3304 [2019-09-10 07:27:01,476 INFO L226 Difference]: Without dead ends: 3304 [2019-09-10 07:27:01,476 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:27:01,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3304 states. [2019-09-10 07:27:01,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3304 to 2834. [2019-09-10 07:27:01,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2834 states. [2019-09-10 07:27:01,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2834 states to 2834 states and 4121 transitions. [2019-09-10 07:27:01,545 INFO L78 Accepts]: Start accepts. Automaton has 2834 states and 4121 transitions. Word has length 66 [2019-09-10 07:27:01,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:01,545 INFO L475 AbstractCegarLoop]: Abstraction has 2834 states and 4121 transitions. [2019-09-10 07:27:01,545 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:27:01,545 INFO L276 IsEmpty]: Start isEmpty. Operand 2834 states and 4121 transitions. [2019-09-10 07:27:01,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-10 07:27:01,547 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:01,547 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] [2019-09-10 07:27:01,548 INFO L418 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:01,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:01,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1463051867, now seen corresponding path program 1 times [2019-09-10 07:27:01,548 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:01,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:01,550 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:01,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:01,551 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:01,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:01,766 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 07:27:01,766 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:27:01,766 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:27:01,767 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 68 with the following transitions: [2019-09-10 07:27:01,767 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [53], [56], [61], [69], [71], [74], [82], [84], [87], [95], [97], [100], [103], [107], [109], [112], [113], [115], [117], [122], [124], [127], [140], [142], [145], [148], [150], [165], [167], [170], [173], [175], [190], [192], [194], [197], [200], [202], [228], [229], [233], [234], [235] [2019-09-10 07:27:01,771 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:27:01,771 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:27:01,782 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:27:01,960 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:27:01,961 INFO L272 AbstractInterpreter]: Visited 61 different actions 352 times. Merged at 37 different actions 248 times. Widened at 13 different actions 30 times. Performed 1168 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1168 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 47 fixpoints after 14 different actions. Largest state had 87 variables. [2019-09-10 07:27:01,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:01,963 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:27:01,966 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:27:01,966 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) [2019-09-10 07:27:01,984 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:01,984 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:27:02,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:02,071 INFO L256 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-10 07:27:02,084 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:27:02,190 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 07:27:02,190 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:27:02,260 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 07:27:02,267 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:27:02,267 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4, 4] total 14 [2019-09-10 07:27:02,268 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:27:02,268 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-10 07:27:02,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-10 07:27:02,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-09-10 07:27:02,269 INFO L87 Difference]: Start difference. First operand 2834 states and 4121 transitions. Second operand 12 states. [2019-09-10 07:27:05,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:05,219 INFO L93 Difference]: Finished difference Result 23134 states and 32237 transitions. [2019-09-10 07:27:05,219 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2019-09-10 07:27:05,220 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 67 [2019-09-10 07:27:05,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:05,287 INFO L225 Difference]: With dead ends: 23134 [2019-09-10 07:27:05,288 INFO L226 Difference]: Without dead ends: 23134 [2019-09-10 07:27:05,289 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1349 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=821, Invalid=3339, Unknown=0, NotChecked=0, Total=4160 [2019-09-10 07:27:05,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23134 states. [2019-09-10 07:27:05,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23134 to 9144. [2019-09-10 07:27:05,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9144 states. [2019-09-10 07:27:05,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9144 states to 9144 states and 12840 transitions. [2019-09-10 07:27:05,557 INFO L78 Accepts]: Start accepts. Automaton has 9144 states and 12840 transitions. Word has length 67 [2019-09-10 07:27:05,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:05,557 INFO L475 AbstractCegarLoop]: Abstraction has 9144 states and 12840 transitions. [2019-09-10 07:27:05,557 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-10 07:27:05,558 INFO L276 IsEmpty]: Start isEmpty. Operand 9144 states and 12840 transitions. [2019-09-10 07:27:05,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-10 07:27:05,559 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:05,559 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:27:05,560 INFO L418 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:05,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:05,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1022906900, now seen corresponding path program 1 times [2019-09-10 07:27:05,560 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:05,562 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:05,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:05,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:05,563 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:05,814 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:27:05,815 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:27:05,815 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:27:05,815 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 69 with the following transitions: [2019-09-10 07:27:05,816 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [53], [56], [61], [64], [69], [71], [74], [82], [84], [87], [90], [95], [97], [100], [107], [109], [112], [113], [115], [124], [127], [131], [133], [136], [142], [145], [148], [150], [165], [167], [170], [173], [175], [183], [186], [192], [194], [197], [200], [202], [228], [229], [233], [234], [235] [2019-09-10 07:27:05,824 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:27:05,824 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:27:05,837 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:27:05,978 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:27:05,978 INFO L272 AbstractInterpreter]: Visited 63 different actions 345 times. Merged at 40 different actions 249 times. Widened at 11 different actions 27 times. Performed 1129 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1129 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 27 fixpoints after 9 different actions. Largest state had 87 variables. [2019-09-10 07:27:05,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:05,979 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:27:05,979 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:27:05,979 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 07:27:05,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:05,996 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 07:27:06,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:06,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 25 conjunts are in the unsatisfiable core [2019-09-10 07:27:06,081 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:27:06,638 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:06,868 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:27:06,868 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:27:06,951 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:06,951 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:06,952 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:06,953 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:06,953 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:06,954 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:06,955 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:06,956 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:06,956 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:06,956 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:06,957 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:06,958 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:07,729 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2019-09-10 07:27:08,060 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 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 07:27:08,074 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:27:08,074 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14, 14] total 31 [2019-09-10 07:27:08,074 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:27:08,075 INFO L454 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-09-10 07:27:08,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-09-10 07:27:08,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=760, Unknown=0, NotChecked=0, Total=930 [2019-09-10 07:27:08,076 INFO L87 Difference]: Start difference. First operand 9144 states and 12840 transitions. Second operand 21 states. [2019-09-10 07:27:08,269 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-10 07:27:08,829 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 36 [2019-09-10 07:27:09,251 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2019-09-10 07:27:09,406 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-09-10 07:27:09,586 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-09-10 07:27:09,769 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-09-10 07:27:12,579 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 39 [2019-09-10 07:27:12,783 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2019-09-10 07:27:13,119 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-10 07:27:13,346 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-09-10 07:27:13,530 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-09-10 07:27:14,057 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-09-10 07:27:14,248 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-09-10 07:27:14,425 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-09-10 07:27:14,896 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-10 07:27:15,391 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-10 07:27:15,909 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-10 07:27:16,959 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-10 07:27:17,123 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2019-09-10 07:27:17,355 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2019-09-10 07:27:17,812 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2019-09-10 07:27:18,393 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-10 07:27:18,607 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-09-10 07:27:19,439 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-09-10 07:27:19,755 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-10 07:27:20,072 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 34 [2019-09-10 07:27:20,645 WARN L188 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-10 07:27:20,984 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-10 07:27:21,364 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-10 07:27:21,749 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-10 07:27:21,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:21,842 INFO L93 Difference]: Finished difference Result 39514 states and 54888 transitions. [2019-09-10 07:27:21,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2019-09-10 07:27:21,842 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 68 [2019-09-10 07:27:21,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:21,932 INFO L225 Difference]: With dead ends: 39514 [2019-09-10 07:27:21,933 INFO L226 Difference]: Without dead ends: 39514 [2019-09-10 07:27:21,939 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 106 SyntacticMatches, 10 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6197 ImplicationChecksByTransitivity, 11.7s TimeCoverageRelationStatistics Valid=3915, Invalid=14175, Unknown=0, NotChecked=0, Total=18090 [2019-09-10 07:27:21,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39514 states. [2019-09-10 07:27:22,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39514 to 16642. [2019-09-10 07:27:22,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16642 states. [2019-09-10 07:27:22,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16642 states to 16642 states and 23381 transitions. [2019-09-10 07:27:22,415 INFO L78 Accepts]: Start accepts. Automaton has 16642 states and 23381 transitions. Word has length 68 [2019-09-10 07:27:22,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:22,415 INFO L475 AbstractCegarLoop]: Abstraction has 16642 states and 23381 transitions. [2019-09-10 07:27:22,415 INFO L476 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-09-10 07:27:22,416 INFO L276 IsEmpty]: Start isEmpty. Operand 16642 states and 23381 transitions. [2019-09-10 07:27:22,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-10 07:27:22,417 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:22,417 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:27:22,418 INFO L418 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:22,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:22,418 INFO L82 PathProgramCache]: Analyzing trace with hash -1046652122, now seen corresponding path program 1 times [2019-09-10 07:27:22,418 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:22,419 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:22,420 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:22,420 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:22,420 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:22,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:22,636 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:27:22,637 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:27:22,637 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:27:22,637 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 69 with the following transitions: [2019-09-10 07:27:22,638 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [53], [56], [61], [64], [69], [71], [74], [77], [82], [84], [87], [95], [97], [100], [107], [109], [112], [113], [115], [124], [127], [131], [140], [142], [145], [148], [150], [158], [161], [167], [170], [173], [175], [183], [186], [192], [194], [197], [200], [202], [228], [229], [233], [234], [235] [2019-09-10 07:27:22,640 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:27:22,640 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:27:22,648 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:27:22,848 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:27:22,849 INFO L272 AbstractInterpreter]: Visited 63 different actions 416 times. Merged at 40 different actions 313 times. Widened at 13 different actions 47 times. Performed 1373 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1373 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 34 fixpoints after 14 different actions. Largest state had 87 variables. [2019-09-10 07:27:22,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:22,850 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:27:22,850 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:27:22,850 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:27:22,882 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:22,882 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:27:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:22,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-10 07:27:22,986 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:27:23,092 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:23,388 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:27:23,388 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:27:23,589 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:23,726 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:27:23,740 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:27:23,741 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2019-09-10 07:27:23,741 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:27:23,743 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-10 07:27:23,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-10 07:27:23,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2019-09-10 07:27:23,746 INFO L87 Difference]: Start difference. First operand 16642 states and 23381 transitions. Second operand 17 states. [2019-09-10 07:27:24,626 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2019-09-10 07:27:26,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:27:26,848 INFO L93 Difference]: Finished difference Result 87944 states and 121237 transitions. [2019-09-10 07:27:26,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-09-10 07:27:26,849 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 68 [2019-09-10 07:27:26,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:27:27,023 INFO L225 Difference]: With dead ends: 87944 [2019-09-10 07:27:27,024 INFO L226 Difference]: Without dead ends: 87944 [2019-09-10 07:27:27,031 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 124 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 773 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=874, Invalid=2432, Unknown=0, NotChecked=0, Total=3306 [2019-09-10 07:27:27,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87944 states. [2019-09-10 07:27:28,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87944 to 40439. [2019-09-10 07:27:28,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40439 states. [2019-09-10 07:27:28,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40439 states to 40439 states and 56576 transitions. [2019-09-10 07:27:28,768 INFO L78 Accepts]: Start accepts. Automaton has 40439 states and 56576 transitions. Word has length 68 [2019-09-10 07:27:28,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:27:28,768 INFO L475 AbstractCegarLoop]: Abstraction has 40439 states and 56576 transitions. [2019-09-10 07:27:28,768 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-10 07:27:28,769 INFO L276 IsEmpty]: Start isEmpty. Operand 40439 states and 56576 transitions. [2019-09-10 07:27:28,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-10 07:27:28,770 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:27:28,771 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:27:28,771 INFO L418 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:27:28,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:28,771 INFO L82 PathProgramCache]: Analyzing trace with hash 9977577, now seen corresponding path program 1 times [2019-09-10 07:27:28,771 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:27:28,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:28,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:28,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:27:28,773 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:27:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:29,425 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2019-09-10 07:27:29,930 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:27:29,930 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:27:29,930 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:27:29,930 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 70 with the following transitions: [2019-09-10 07:27:29,931 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [53], [56], [61], [64], [67], [69], [71], [74], [77], [82], [84], [87], [90], [95], [97], [100], [107], [109], [112], [113], [115], [124], [127], [131], [133], [136], [142], [145], [148], [150], [158], [161], [167], [170], [173], [175], [192], [194], [197], [200], [202], [228], [229], [233], [234], [235] [2019-09-10 07:27:29,934 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:27:29,934 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:27:29,942 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:27:30,062 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:27:30,063 INFO L272 AbstractInterpreter]: Visited 64 different actions 355 times. Merged at 41 different actions 259 times. Widened at 10 different actions 24 times. Performed 1147 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1147 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 30 fixpoints after 14 different actions. Largest state had 87 variables. [2019-09-10 07:27:30,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:27:30,063 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:27:30,063 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:27:30,063 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:27:30,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:27:30,086 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:27:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:27:30,159 INFO L256 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-10 07:27:30,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:27:30,362 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:27:31,348 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:27:31,349 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:27:31,820 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:27:31,823 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:27:31,824 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11, 11] total 37 [2019-09-10 07:27:31,824 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:27:31,825 INFO L454 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-09-10 07:27:31,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-09-10 07:27:31,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1229, Unknown=0, NotChecked=0, Total=1332 [2019-09-10 07:27:31,826 INFO L87 Difference]: Start difference. First operand 40439 states and 56576 transitions. Second operand 28 states. [2019-09-10 07:27:32,998 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 35 [2019-09-10 07:27:33,195 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2019-09-10 07:27:33,444 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2019-09-10 07:27:33,800 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2019-09-10 07:27:34,218 WARN L188 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 84 [2019-09-10 07:27:34,692 WARN L188 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 94 [2019-09-10 07:27:35,070 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-10 07:27:35,429 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2019-09-10 07:27:35,731 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 07:27:36,056 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2019-09-10 07:27:36,355 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2019-09-10 07:27:36,696 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-10 07:27:37,006 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:27:37,433 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2019-09-10 07:27:37,888 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 99 [2019-09-10 07:27:38,238 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 07:27:38,584 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2019-09-10 07:27:39,033 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 103 [2019-09-10 07:27:39,448 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 95 [2019-09-10 07:27:39,738 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2019-09-10 07:27:39,987 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-10 07:27:40,373 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2019-09-10 07:27:40,797 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 99 [2019-09-10 07:27:41,108 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2019-09-10 07:27:41,509 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 92 [2019-09-10 07:27:41,708 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-10 07:27:42,190 WARN L188 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 108 [2019-09-10 07:27:42,543 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-10 07:27:43,030 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-10 07:27:43,449 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2019-09-10 07:27:43,655 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-10 07:27:44,165 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2019-09-10 07:27:44,762 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 96 [2019-09-10 07:27:44,974 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-09-10 07:27:45,471 WARN L188 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 112 [2019-09-10 07:27:45,765 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-10 07:27:45,929 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-09-10 07:27:46,362 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2019-09-10 07:27:46,620 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-10 07:27:46,913 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-10 07:27:47,062 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-09-10 07:27:47,471 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-10 07:27:47,751 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-09-10 07:27:48,216 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2019-09-10 07:27:48,551 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 07:27:48,929 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2019-09-10 07:27:49,219 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 07:27:49,756 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2019-09-10 07:27:50,104 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2019-09-10 07:27:50,263 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-09-10 07:27:50,541 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2019-09-10 07:27:50,885 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-10 07:27:51,205 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 54 [2019-09-10 07:27:51,575 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 07:27:51,921 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2019-09-10 07:27:52,140 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-10 07:27:52,516 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 07:27:52,810 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2019-09-10 07:27:53,189 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-10 07:27:53,639 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2019-09-10 07:27:54,059 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2019-09-10 07:27:54,742 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-10 07:27:55,321 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-10 07:27:55,645 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2019-09-10 07:27:55,907 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-10 07:27:56,273 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-10 07:27:56,744 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2019-09-10 07:27:57,095 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 77 [2019-09-10 07:27:57,492 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:27:57,777 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-10 07:27:58,069 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 07:27:58,492 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2019-09-10 07:27:59,044 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 39 [2019-09-10 07:27:59,383 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2019-09-10 07:27:59,661 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2019-09-10 07:27:59,950 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 07:28:00,137 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2019-09-10 07:28:00,291 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2019-09-10 07:28:00,790 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 87 [2019-09-10 07:28:01,264 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2019-09-10 07:28:01,534 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2019-09-10 07:28:01,724 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2019-09-10 07:28:01,904 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2019-09-10 07:28:02,070 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-09-10 07:28:02,486 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 67 [2019-09-10 07:28:02,699 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 44 [2019-09-10 07:28:03,145 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-09-10 07:28:03,494 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-10 07:28:03,830 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2019-09-10 07:28:04,024 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-10 07:28:04,403 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 70 [2019-09-10 07:28:04,906 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2019-09-10 07:28:05,124 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-09-10 07:28:05,750 WARN L188 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 94 [2019-09-10 07:28:05,957 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2019-09-10 07:28:06,289 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2019-09-10 07:28:06,609 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 73 [2019-09-10 07:28:06,847 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2019-09-10 07:28:07,012 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2019-09-10 07:28:07,583 WARN L188 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 97 [2019-09-10 07:28:07,828 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2019-09-10 07:28:08,305 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2019-09-10 07:28:08,611 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 75 [2019-09-10 07:28:08,893 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2019-09-10 07:28:09,181 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 66 [2019-09-10 07:28:09,763 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 87 [2019-09-10 07:28:10,105 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2019-09-10 07:28:10,423 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 78 [2019-09-10 07:28:10,932 WARN L188 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 90 [2019-09-10 07:28:11,240 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-10 07:28:11,462 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 50 [2019-09-10 07:28:11,934 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2019-09-10 07:28:12,326 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-10 07:28:12,730 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2019-09-10 07:28:12,898 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2019-09-10 07:28:13,306 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 79 [2019-09-10 07:28:13,760 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-10 07:28:14,267 WARN L188 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2019-09-10 07:28:14,542 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 07:28:15,043 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 70 [2019-09-10 07:28:15,455 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-10 07:28:15,990 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-09-10 07:28:16,465 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 84 [2019-09-10 07:28:16,837 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-09-10 07:28:17,024 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-09-10 07:28:17,537 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 75 [2019-09-10 07:28:17,742 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-09-10 07:28:18,113 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-10 07:28:18,670 WARN L188 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-09-10 07:28:19,177 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-10 07:28:19,458 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-10 07:28:19,907 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 07:28:20,113 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2019-09-10 07:28:20,470 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2019-09-10 07:28:20,710 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 60 [2019-09-10 07:28:20,941 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-10 07:28:21,500 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-09-10 07:28:21,956 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-10 07:28:22,170 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-09-10 07:28:22,484 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-10 07:28:22,740 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-09-10 07:28:23,106 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-10 07:28:23,457 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-10 07:28:23,787 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-10 07:28:23,975 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 07:28:24,353 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2019-09-10 07:28:24,717 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 07:28:24,946 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-10 07:28:25,229 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-10 07:28:25,480 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-09-10 07:28:25,849 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-10 07:28:26,329 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2019-09-10 07:28:26,578 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2019-09-10 07:28:26,823 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2019-09-10 07:28:27,629 WARN L188 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 93 [2019-09-10 07:28:27,875 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-10 07:28:28,361 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-09-10 07:28:28,880 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 86 [2019-09-10 07:28:29,287 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2019-09-10 07:28:29,636 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2019-09-10 07:28:29,984 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2019-09-10 07:28:30,147 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-09-10 07:28:30,316 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2019-09-10 07:28:30,794 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2019-09-10 07:28:30,980 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-10 07:28:31,540 WARN L188 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 96 [2019-09-10 07:28:31,750 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 07:28:32,117 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2019-09-10 07:28:32,582 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2019-09-10 07:28:32,829 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:28:33,036 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2019-09-10 07:28:33,286 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 07:28:33,573 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2019-09-10 07:28:33,907 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 07:28:34,508 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 84 [2019-09-10 07:28:34,968 WARN L188 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 93 [2019-09-10 07:28:35,500 WARN L188 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 99 [2019-09-10 07:28:35,916 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 67 [2019-09-10 07:28:36,143 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-10 07:28:36,516 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2019-09-10 07:28:36,876 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2019-09-10 07:28:37,182 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-09-10 07:28:37,384 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-10 07:28:37,586 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-10 07:28:37,885 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:28:38,312 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-09-10 07:28:38,482 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2019-09-10 07:28:38,867 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 07:28:39,125 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2019-09-10 07:28:39,451 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-10 07:28:39,792 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 85 [2019-09-10 07:28:40,203 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2019-09-10 07:28:40,957 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2019-09-10 07:28:41,496 WARN L188 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 96 [2019-09-10 07:28:41,730 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-09-10 07:28:41,926 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-09-10 07:28:42,189 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-10 07:28:42,655 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2019-09-10 07:28:43,098 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 07:28:43,346 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-10 07:28:43,579 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-10 07:28:44,017 WARN L188 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2019-09-10 07:28:44,499 WARN L188 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 94 [2019-09-10 07:28:45,096 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 90 [2019-09-10 07:28:45,650 WARN L188 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 99 [2019-09-10 07:28:46,216 WARN L188 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 103 [2019-09-10 07:28:46,456 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-10 07:28:46,955 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2019-09-10 07:28:47,250 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:28:47,596 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-10 07:28:47,896 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:28:48,267 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-10 07:28:48,634 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2019-09-10 07:28:48,814 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 07:28:49,177 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2019-09-10 07:28:49,385 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-10 07:28:49,572 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-10 07:28:49,757 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 07:28:49,940 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 07:28:50,105 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2019-09-10 07:28:50,449 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2019-09-10 07:28:50,662 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-10 07:28:51,031 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2019-09-10 07:28:51,658 WARN L188 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 113 [2019-09-10 07:28:51,962 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 07:28:52,306 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2019-09-10 07:28:52,637 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2019-09-10 07:28:52,999 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2019-09-10 07:28:53,306 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2019-09-10 07:28:53,707 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2019-09-10 07:28:54,224 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 93 [2019-09-10 07:28:54,639 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 93 [2019-09-10 07:28:55,085 WARN L188 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 89 [2019-09-10 07:28:55,385 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2019-09-10 07:28:55,881 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-10 07:28:56,144 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-10 07:28:56,625 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 94 [2019-09-10 07:28:57,179 WARN L188 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2019-09-10 07:28:57,456 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:28:57,804 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2019-09-10 07:28:58,029 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-10 07:28:58,257 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-10 07:28:58,425 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-10 07:28:58,670 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-10 07:28:59,261 WARN L188 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 106 [2019-09-10 07:28:59,610 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-09-10 07:28:59,949 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 07:29:00,114 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2019-09-10 07:29:00,349 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-10 07:29:00,592 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-09-10 07:29:00,829 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-10 07:29:01,126 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-10 07:29:01,553 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 103 [2019-09-10 07:29:02,026 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 97 [2019-09-10 07:29:02,575 WARN L188 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 100 [2019-09-10 07:29:02,992 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2019-09-10 07:29:03,336 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 85 [2019-09-10 07:29:03,738 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 89 [2019-09-10 07:29:04,332 WARN L188 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 109 [2019-09-10 07:29:04,655 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2019-09-10 07:29:04,996 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2019-09-10 07:29:05,193 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2019-09-10 07:29:05,608 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-10 07:29:05,997 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2019-09-10 07:29:06,234 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-10 07:29:06,956 WARN L188 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 116 [2019-09-10 07:29:07,303 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2019-09-10 07:29:07,653 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 87 [2019-09-10 07:29:08,017 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2019-09-10 07:29:08,406 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 87 [2019-09-10 07:29:08,669 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-10 07:29:08,929 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-10 07:29:09,135 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-10 07:29:09,611 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 96 [2019-09-10 07:29:09,846 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-10 07:29:10,055 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-10 07:29:10,213 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-10 07:29:10,462 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-10 07:29:10,828 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2019-09-10 07:29:11,075 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-10 07:29:11,772 WARN L188 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 119 [2019-09-10 07:29:12,104 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2019-09-10 07:29:12,477 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2019-09-10 07:29:13,002 WARN L188 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2019-09-10 07:29:13,396 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2019-09-10 07:29:13,858 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 99 [2019-09-10 07:29:14,186 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2019-09-10 07:29:14,488 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:29:14,712 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 07:29:14,938 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-10 07:29:15,124 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 07:29:15,396 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2019-09-10 07:29:15,873 WARN L188 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 106 [2019-09-10 07:29:16,195 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2019-09-10 07:29:16,534 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 83 [2019-09-10 07:29:17,015 WARN L188 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 106 [2019-09-10 07:29:17,319 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-09-10 07:29:17,480 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 07:29:17,638 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 07:29:17,895 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-10 07:29:18,066 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-10 07:29:18,233 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 07:29:18,394 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 07:29:18,889 WARN L188 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:29:19,242 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-10 07:29:19,540 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 76 [2019-09-10 07:29:19,865 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 07:29:20,143 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2019-09-10 07:29:20,670 WARN L188 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 109 [2019-09-10 07:29:20,989 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2019-09-10 07:29:21,337 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 86 [2019-09-10 07:29:21,824 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 109 [2019-09-10 07:29:22,450 WARN L188 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 113 [2019-09-10 07:29:23,010 WARN L188 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 100 [2019-09-10 07:29:23,203 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-09-10 07:29:23,463 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-10 07:29:23,693 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2019-09-10 07:29:24,141 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 102 [2019-09-10 07:29:24,350 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-10 07:29:24,505 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-10 07:29:24,651 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-10 07:29:24,855 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-10 07:29:25,393 WARN L188 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 90 [2019-09-10 07:29:25,672 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2019-09-10 07:29:25,995 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-09-10 07:29:26,415 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2019-09-10 07:29:27,106 WARN L188 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 122 [2019-09-10 07:29:27,594 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 105 [2019-09-10 07:29:28,068 WARN L188 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2019-09-10 07:29:28,552 WARN L188 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2019-09-10 07:29:28,892 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 81 [2019-09-10 07:29:29,432 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-10 07:29:29,602 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-10 07:29:29,769 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-10 07:29:29,935 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-10 07:29:30,424 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2019-09-10 07:29:30,676 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-09-10 07:29:31,412 WARN L188 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 112 [2019-09-10 07:29:31,919 WARN L188 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 99 [2019-09-10 07:29:32,309 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-10 07:29:32,482 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-10 07:29:32,925 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-09-10 07:29:33,201 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2019-09-10 07:29:33,789 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 07:29:34,063 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-10 07:29:34,646 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 07:29:34,938 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-09-10 07:29:35,433 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2019-09-10 07:29:35,707 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:29:36,100 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 07:29:36,580 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2019-09-10 07:29:36,990 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 07:29:37,528 WARN L188 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 86 [2019-09-10 07:29:37,785 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-09-10 07:29:38,111 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2019-09-10 07:29:38,582 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2019-09-10 07:29:38,760 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-09-10 07:29:39,134 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2019-09-10 07:29:39,480 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 07:29:39,761 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-09-10 07:29:42,185 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2019-09-10 07:29:42,367 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-09-10 07:29:42,915 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 07:29:43,215 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-10 07:29:43,404 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-10 07:29:43,804 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2019-09-10 07:29:44,554 WARN L188 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2019-09-10 07:29:44,867 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-10 07:29:45,417 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2019-09-10 07:29:45,714 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-10 07:29:46,128 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2019-09-10 07:29:46,391 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 07:29:46,605 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-10 07:29:46,994 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-10 07:29:47,359 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2019-09-10 07:29:48,083 WARN L188 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2019-09-10 07:29:48,400 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-10 07:29:49,050 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 86 [2019-09-10 07:29:49,404 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 07:29:49,733 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2019-09-10 07:29:50,191 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2019-09-10 07:29:50,434 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 07:29:50,921 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2019-09-10 07:29:51,153 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-10 07:29:51,516 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 07:29:51,847 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-10 07:29:52,257 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 07:29:52,890 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2019-09-10 07:29:53,155 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-10 07:29:53,451 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 07:29:53,778 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:29:54,027 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-09-10 07:29:54,427 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-10 07:29:55,038 WARN L188 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 93 [2019-09-10 07:29:55,496 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2019-09-10 07:29:56,063 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:29:56,357 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-10 07:29:56,770 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:29:57,357 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 79 [2019-09-10 07:29:58,074 WARN L188 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 96 [2019-09-10 07:29:58,352 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2019-09-10 07:29:58,860 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2019-09-10 07:29:59,524 WARN L188 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2019-09-10 07:29:59,820 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-10 07:30:00,093 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-10 07:30:00,462 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-10 07:30:01,063 WARN L188 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2019-09-10 07:30:01,416 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-09-10 07:30:01,816 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:30:02,008 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 07:30:02,288 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-10 07:30:02,470 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 07:30:02,772 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-10 07:30:02,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:30:02,950 INFO L93 Difference]: Finished difference Result 108482 states and 148300 transitions. [2019-09-10 07:30:02,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 506 states. [2019-09-10 07:30:02,950 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 69 [2019-09-10 07:30:02,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:30:03,067 INFO L225 Difference]: With dead ends: 108482 [2019-09-10 07:30:03,068 INFO L226 Difference]: Without dead ends: 108482 [2019-09-10 07:30:03,086 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 660 GetRequests, 112 SyntacticMatches, 10 SemanticMatches, 538 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128341 ImplicationChecksByTransitivity, 135.4s TimeCoverageRelationStatistics Valid=30276, Invalid=260784, Unknown=0, NotChecked=0, Total=291060 [2019-09-10 07:30:03,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108482 states. [2019-09-10 07:30:03,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108482 to 40954. [2019-09-10 07:30:03,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40954 states. [2019-09-10 07:30:03,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40954 states to 40954 states and 57373 transitions. [2019-09-10 07:30:03,797 INFO L78 Accepts]: Start accepts. Automaton has 40954 states and 57373 transitions. Word has length 69 [2019-09-10 07:30:03,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:30:03,798 INFO L475 AbstractCegarLoop]: Abstraction has 40954 states and 57373 transitions. [2019-09-10 07:30:03,798 INFO L476 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-09-10 07:30:03,798 INFO L276 IsEmpty]: Start isEmpty. Operand 40954 states and 57373 transitions. [2019-09-10 07:30:03,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-10 07:30:03,799 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:30:03,799 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:30:03,800 INFO L418 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:30:03,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:30:03,800 INFO L82 PathProgramCache]: Analyzing trace with hash -337527698, now seen corresponding path program 1 times [2019-09-10 07:30:03,800 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:30:03,801 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:30:03,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:30:03,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:30:03,802 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:30:03,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:30:03,848 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 07:30:03,848 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:30:03,848 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:30:03,848 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:30:03,849 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:30:03,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:30:03,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:30:03,849 INFO L87 Difference]: Start difference. First operand 40954 states and 57373 transitions. Second operand 3 states. [2019-09-10 07:30:03,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:30:03,950 INFO L93 Difference]: Finished difference Result 39300 states and 54010 transitions. [2019-09-10 07:30:03,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:30:03,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2019-09-10 07:30:03,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:30:03,999 INFO L225 Difference]: With dead ends: 39300 [2019-09-10 07:30:03,999 INFO L226 Difference]: Without dead ends: 39300 [2019-09-10 07:30:03,999 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 07:30:04,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39300 states. [2019-09-10 07:30:04,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39300 to 38638. [2019-09-10 07:30:04,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38638 states. [2019-09-10 07:30:04,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38638 states to 38638 states and 53349 transitions. [2019-09-10 07:30:04,375 INFO L78 Accepts]: Start accepts. Automaton has 38638 states and 53349 transitions. Word has length 70 [2019-09-10 07:30:04,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:30:04,375 INFO L475 AbstractCegarLoop]: Abstraction has 38638 states and 53349 transitions. [2019-09-10 07:30:04,375 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:30:04,375 INFO L276 IsEmpty]: Start isEmpty. Operand 38638 states and 53349 transitions. [2019-09-10 07:30:04,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-10 07:30:04,377 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:30:04,378 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:30:04,378 INFO L418 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:30:04,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:30:04,380 INFO L82 PathProgramCache]: Analyzing trace with hash -1576866514, now seen corresponding path program 1 times [2019-09-10 07:30:04,380 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:30:04,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:30:04,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:30:04,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:30:04,382 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:30:04,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:30:04,895 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 07:30:04,896 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:30:04,896 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:30:04,896 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 71 with the following transitions: [2019-09-10 07:30:04,896 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [53], [56], [61], [64], [69], [71], [74], [77], [80], [82], [84], [87], [90], [93], [95], [97], [100], [107], [109], [112], [113], [115], [124], [127], [129], [142], [145], [148], [150], [167], [170], [173], [175], [183], [186], [192], [194], [197], [200], [202], [228], [229], [233], [234], [235] [2019-09-10 07:30:04,898 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:30:04,898 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:30:04,904 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:30:05,054 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:30:05,055 INFO L272 AbstractInterpreter]: Visited 63 different actions 405 times. Merged at 40 different actions 302 times. Widened at 14 different actions 47 times. Performed 1313 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1313 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 34 fixpoints after 14 different actions. Largest state had 87 variables. [2019-09-10 07:30:05,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:30:05,055 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:30:05,055 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:30:05,056 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 07:30:05,084 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:30:05,084 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:30:05,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:30:05,185 INFO L256 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 39 conjunts are in the unsatisfiable core [2019-09-10 07:30:05,189 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:30:06,955 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:07,111 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-10 07:30:07,371 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2019-09-10 07:30:07,920 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2019-09-10 07:30:07,922 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-10 07:30:08,283 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:08,432 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:08,796 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 07:30:08,796 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:30:09,332 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:09,561 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:09,812 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:10,394 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 07:30:10,398 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:30:10,398 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 21, 20] total 57 [2019-09-10 07:30:10,398 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:30:10,400 INFO L454 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-09-10 07:30:10,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-09-10 07:30:10,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=2933, Unknown=0, NotChecked=0, Total=3192 [2019-09-10 07:30:10,401 INFO L87 Difference]: Start difference. First operand 38638 states and 53349 transitions. Second operand 39 states. [2019-09-10 07:30:11,093 WARN L188 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 94 [2019-09-10 07:30:12,321 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 40 [2019-09-10 07:30:12,671 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 57 [2019-09-10 07:30:13,019 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2019-09-10 07:30:13,368 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 07:30:13,833 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 80 [2019-09-10 07:30:14,195 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2019-09-10 07:30:14,586 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 79 [2019-09-10 07:30:14,947 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2019-09-10 07:30:15,417 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-09-10 07:30:15,793 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2019-09-10 07:30:16,422 WARN L188 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2019-09-10 07:30:19,136 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2019-09-10 07:30:19,670 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 76 [2019-09-10 07:30:20,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:30:20,174 INFO L93 Difference]: Finished difference Result 55636 states and 76994 transitions. [2019-09-10 07:30:20,174 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-09-10 07:30:20,174 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 70 [2019-09-10 07:30:20,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:30:20,228 INFO L225 Difference]: With dead ends: 55636 [2019-09-10 07:30:20,228 INFO L226 Difference]: Without dead ends: 55636 [2019-09-10 07:30:20,229 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 101 SyntacticMatches, 3 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1324 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=890, Invalid=5590, Unknown=0, NotChecked=0, Total=6480 [2019-09-10 07:30:20,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55636 states. [2019-09-10 07:30:20,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55636 to 38660. [2019-09-10 07:30:20,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38660 states. [2019-09-10 07:30:20,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38660 states to 38660 states and 53379 transitions. [2019-09-10 07:30:20,616 INFO L78 Accepts]: Start accepts. Automaton has 38660 states and 53379 transitions. Word has length 70 [2019-09-10 07:30:20,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:30:20,616 INFO L475 AbstractCegarLoop]: Abstraction has 38660 states and 53379 transitions. [2019-09-10 07:30:20,616 INFO L476 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-09-10 07:30:20,616 INFO L276 IsEmpty]: Start isEmpty. Operand 38660 states and 53379 transitions. [2019-09-10 07:30:20,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-10 07:30:20,618 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:30:20,618 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:30:20,618 INFO L418 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:30:20,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:30:20,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1191255918, now seen corresponding path program 1 times [2019-09-10 07:30:20,618 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:30:20,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:30:20,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:30:20,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:30:20,620 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:30:20,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:30:20,669 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 07:30:20,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:30:20,670 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:30:20,670 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:30:20,670 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:30:20,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:30:20,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:30:20,671 INFO L87 Difference]: Start difference. First operand 38660 states and 53379 transitions. Second operand 3 states. [2019-09-10 07:30:20,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:30:20,729 INFO L93 Difference]: Finished difference Result 22190 states and 30010 transitions. [2019-09-10 07:30:20,729 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:30:20,729 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2019-09-10 07:30:20,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:30:20,754 INFO L225 Difference]: With dead ends: 22190 [2019-09-10 07:30:20,755 INFO L226 Difference]: Without dead ends: 22190 [2019-09-10 07:30:20,755 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 07:30:20,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22190 states. [2019-09-10 07:30:20,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22190 to 21804. [2019-09-10 07:30:20,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21804 states. [2019-09-10 07:30:20,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21804 states to 21804 states and 29529 transitions. [2019-09-10 07:30:20,996 INFO L78 Accepts]: Start accepts. Automaton has 21804 states and 29529 transitions. Word has length 70 [2019-09-10 07:30:20,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:30:20,997 INFO L475 AbstractCegarLoop]: Abstraction has 21804 states and 29529 transitions. [2019-09-10 07:30:20,997 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:30:20,997 INFO L276 IsEmpty]: Start isEmpty. Operand 21804 states and 29529 transitions. [2019-09-10 07:30:20,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-09-10 07:30:20,998 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:30:20,998 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] [2019-09-10 07:30:20,999 INFO L418 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:30:20,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:30:20,999 INFO L82 PathProgramCache]: Analyzing trace with hash 430720802, now seen corresponding path program 1 times [2019-09-10 07:30:20,999 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:30:21,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:30:21,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:30:21,000 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:30:21,000 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:30:21,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:30:21,451 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 07:30:21,452 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:30:21,452 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:30:21,452 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 72 with the following transitions: [2019-09-10 07:30:21,452 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [53], [56], [61], [64], [69], [71], [74], [77], [80], [82], [84], [87], [90], [95], [97], [100], [107], [109], [112], [113], [115], [124], [127], [129], [133], [138], [142], [145], [148], [150], [167], [170], [173], [175], [183], [186], [192], [194], [197], [200], [202], [228], [229], [233], [234], [235] [2019-09-10 07:30:21,463 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:30:21,463 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:30:21,471 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:30:21,557 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:30:21,557 INFO L272 AbstractInterpreter]: Visited 64 different actions 218 times. Merged at 39 different actions 132 times. Widened at 3 different actions 6 times. Performed 741 root evaluator evaluations with a maximum evaluation depth of 5. Performed 741 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 14 fixpoints after 7 different actions. Largest state had 87 variables. [2019-09-10 07:30:21,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:30:21,558 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:30:21,558 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:30:21,558 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 07:30:21,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:30:21,573 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 07:30:21,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:30:21,647 INFO L256 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 32 conjunts are in the unsatisfiable core [2019-09-10 07:30:21,650 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:30:22,031 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:22,373 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 07:30:22,373 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:30:23,146 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:23,428 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 07:30:23,432 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:30:23,432 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17, 18] total 42 [2019-09-10 07:30:23,432 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:30:23,432 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-09-10 07:30:23,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-09-10 07:30:23,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=1488, Unknown=0, NotChecked=0, Total=1722 [2019-09-10 07:30:23,433 INFO L87 Difference]: Start difference. First operand 21804 states and 29529 transitions. Second operand 26 states. [2019-09-10 07:30:24,173 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-09-10 07:30:24,340 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-09-10 07:30:24,520 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2019-09-10 07:30:24,720 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-10 07:30:25,109 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2019-09-10 07:30:25,266 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 23 [2019-09-10 07:30:26,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:30:26,852 INFO L93 Difference]: Finished difference Result 34994 states and 47147 transitions. [2019-09-10 07:30:26,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2019-09-10 07:30:26,852 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 71 [2019-09-10 07:30:26,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:30:26,887 INFO L225 Difference]: With dead ends: 34994 [2019-09-10 07:30:26,887 INFO L226 Difference]: Without dead ends: 34994 [2019-09-10 07:30:26,888 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 110 SyntacticMatches, 3 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 941 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=817, Invalid=3215, Unknown=0, NotChecked=0, Total=4032 [2019-09-10 07:30:26,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34994 states. [2019-09-10 07:30:27,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34994 to 18423. [2019-09-10 07:30:27,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18423 states. [2019-09-10 07:30:27,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18423 states to 18423 states and 24995 transitions. [2019-09-10 07:30:27,105 INFO L78 Accepts]: Start accepts. Automaton has 18423 states and 24995 transitions. Word has length 71 [2019-09-10 07:30:27,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:30:27,105 INFO L475 AbstractCegarLoop]: Abstraction has 18423 states and 24995 transitions. [2019-09-10 07:30:27,105 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-09-10 07:30:27,105 INFO L276 IsEmpty]: Start isEmpty. Operand 18423 states and 24995 transitions. [2019-09-10 07:30:27,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-09-10 07:30:27,112 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:30:27,112 INFO L399 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:27,112 INFO L418 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:30:27,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:30:27,112 INFO L82 PathProgramCache]: Analyzing trace with hash 2083336193, now seen corresponding path program 1 times [2019-09-10 07:30:27,113 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:30:27,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:30:27,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:30:27,114 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:30:27,114 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:30:27,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:30:27,182 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-10 07:30:27,183 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:30:27,183 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:30:27,183 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:30:27,183 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:30:27,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:30:27,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:30:27,184 INFO L87 Difference]: Start difference. First operand 18423 states and 24995 transitions. Second operand 3 states. [2019-09-10 07:30:27,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:30:27,211 INFO L93 Difference]: Finished difference Result 8783 states and 11807 transitions. [2019-09-10 07:30:27,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:30:27,212 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2019-09-10 07:30:27,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:30:27,221 INFO L225 Difference]: With dead ends: 8783 [2019-09-10 07:30:27,222 INFO L226 Difference]: Without dead ends: 8783 [2019-09-10 07:30:27,222 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 07:30:27,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8783 states. [2019-09-10 07:30:27,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8783 to 8283. [2019-09-10 07:30:27,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8283 states. [2019-09-10 07:30:27,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8283 states to 8283 states and 11140 transitions. [2019-09-10 07:30:27,303 INFO L78 Accepts]: Start accepts. Automaton has 8283 states and 11140 transitions. Word has length 114 [2019-09-10 07:30:27,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:30:27,303 INFO L475 AbstractCegarLoop]: Abstraction has 8283 states and 11140 transitions. [2019-09-10 07:30:27,303 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:30:27,304 INFO L276 IsEmpty]: Start isEmpty. Operand 8283 states and 11140 transitions. [2019-09-10 07:30:27,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-09-10 07:30:27,308 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:30:27,309 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:30:27,309 INFO L418 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:30:27,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:30:27,309 INFO L82 PathProgramCache]: Analyzing trace with hash 867437734, now seen corresponding path program 1 times [2019-09-10 07:30:27,309 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:30:27,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:30:27,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:30:27,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:30:27,311 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:30:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:30:27,364 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-09-10 07:30:27,365 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:30:27,365 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 07:30:27,365 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:30:27,365 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 07:30:27,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 07:30:27,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 07:30:27,366 INFO L87 Difference]: Start difference. First operand 8283 states and 11140 transitions. Second operand 4 states. [2019-09-10 07:30:27,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:30:27,455 INFO L93 Difference]: Finished difference Result 10125 states and 13669 transitions. [2019-09-10 07:30:27,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 07:30:27,455 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 114 [2019-09-10 07:30:27,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:30:27,467 INFO L225 Difference]: With dead ends: 10125 [2019-09-10 07:30:27,467 INFO L226 Difference]: Without dead ends: 10125 [2019-09-10 07:30:27,468 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 07:30:27,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10125 states. [2019-09-10 07:30:27,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10125 to 6267. [2019-09-10 07:30:27,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6267 states. [2019-09-10 07:30:27,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6267 states to 6267 states and 8378 transitions. [2019-09-10 07:30:27,544 INFO L78 Accepts]: Start accepts. Automaton has 6267 states and 8378 transitions. Word has length 114 [2019-09-10 07:30:27,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:30:27,544 INFO L475 AbstractCegarLoop]: Abstraction has 6267 states and 8378 transitions. [2019-09-10 07:30:27,544 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 07:30:27,545 INFO L276 IsEmpty]: Start isEmpty. Operand 6267 states and 8378 transitions. [2019-09-10 07:30:27,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-09-10 07:30:27,549 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:30:27,549 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:30:27,549 INFO L418 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:30:27,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:30:27,549 INFO L82 PathProgramCache]: Analyzing trace with hash -1768308149, now seen corresponding path program 1 times [2019-09-10 07:30:27,550 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:30:27,550 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:30:27,551 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:30:27,551 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:30:27,551 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:30:27,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:30:28,093 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 19 proven. 73 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:30:28,093 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:30:28,093 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:30:28,094 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 115 with the following transitions: [2019-09-10 07:30:28,094 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [53], [56], [61], [64], [69], [71], [74], [77], [80], [82], [84], [87], [90], [93], [95], [97], [100], [103], [107], [109], [112], [113], [115], [117], [122], [124], [127], [140], [142], [145], [148], [150], [165], [167], [170], [173], [175], [183], [188], [190], [192], [194], [197], [200], [202], [228], [229], [233], [234], [235] [2019-09-10 07:30:28,096 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:30:28,097 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:30:28,104 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:30:28,455 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:30:28,456 INFO L272 AbstractInterpreter]: Visited 68 different actions 702 times. Merged at 44 different actions 516 times. Widened at 18 different actions 109 times. Performed 2153 root evaluator evaluations with a maximum evaluation depth of 5. Performed 2153 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 114 fixpoints after 22 different actions. Largest state had 87 variables. [2019-09-10 07:30:28,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:30:28,456 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:30:28,457 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:30:28,457 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 07:30:28,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:30:28,479 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:30:28,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:30:28,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-10 07:30:28,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:30:28,916 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:29,039 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:29,235 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 39 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:30:29,235 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:30:29,558 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:29,559 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:29,559 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:29,559 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:29,560 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:29,560 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:29,560 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:29,561 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:29,561 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:29,561 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:29,562 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:29,562 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:29,562 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:29,563 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:29,564 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:29,564 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:29,565 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:29,565 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:29,566 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:29,566 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:29,566 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:30,525 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:30:30,631 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 35 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:30:30,634 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:30:30,634 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 12] total 36 [2019-09-10 07:30:30,635 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:30:30,635 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-09-10 07:30:30,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-09-10 07:30:30,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=1144, Unknown=0, NotChecked=0, Total=1260 [2019-09-10 07:30:30,636 INFO L87 Difference]: Start difference. First operand 6267 states and 8378 transitions. Second operand 26 states. [2019-09-10 07:30:30,923 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 07:30:31,750 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 07:30:32,270 WARN L188 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 07:30:32,665 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-10 07:30:33,017 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 07:30:33,476 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 86 [2019-09-10 07:30:34,031 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 93 [2019-09-10 07:30:34,516 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2019-09-10 07:30:34,844 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 88 [2019-09-10 07:30:35,210 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 93 [2019-09-10 07:30:35,612 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 100 [2019-09-10 07:30:38,169 WARN L188 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 103 DAG size of output: 96 [2019-09-10 07:30:38,516 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 94 [2019-09-10 07:30:38,944 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2019-09-10 07:30:39,438 WARN L188 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2019-09-10 07:30:40,099 WARN L188 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 85 [2019-09-10 07:30:40,438 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83 [2019-09-10 07:30:40,824 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 90 [2019-09-10 07:30:41,268 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-10 07:30:41,575 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-10 07:30:41,887 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 07:30:42,227 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2019-09-10 07:30:42,522 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-10 07:30:42,919 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-10 07:30:43,764 WARN L188 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 07:30:44,066 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:30:44,717 WARN L188 SmtUtils]: Spent 535.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2019-09-10 07:30:45,083 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2019-09-10 07:30:45,451 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2019-09-10 07:30:45,735 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-10 07:30:46,207 WARN L188 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2019-09-10 07:30:46,600 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2019-09-10 07:30:47,091 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 07:30:47,391 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2019-09-10 07:30:47,730 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 07:30:48,162 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2019-09-10 07:30:48,574 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-10 07:30:48,878 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-10 07:30:49,319 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 72 [2019-09-10 07:30:50,421 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-10 07:30:51,095 WARN L188 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2019-09-10 07:30:51,502 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2019-09-10 07:30:51,960 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2019-09-10 07:30:52,533 WARN L188 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 95 [2019-09-10 07:30:52,935 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2019-09-10 07:30:53,587 WARN L188 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2019-09-10 07:30:53,898 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-10 07:30:54,389 WARN L188 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-10 07:30:54,648 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2019-09-10 07:30:55,093 WARN L188 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2019-09-10 07:30:55,558 WARN L188 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-10 07:30:55,853 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-10 07:30:56,362 WARN L188 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2019-09-10 07:30:56,669 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2019-09-10 07:30:57,059 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-10 07:30:57,448 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-10 07:30:58,186 WARN L188 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2019-09-10 07:30:58,650 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-10 07:30:59,132 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2019-09-10 07:30:59,708 WARN L188 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:31:00,458 WARN L188 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 07:31:00,942 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2019-09-10 07:31:01,411 WARN L188 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2019-09-10 07:31:02,436 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-10 07:31:02,754 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-10 07:31:03,178 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2019-09-10 07:31:03,642 WARN L188 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2019-09-10 07:31:03,878 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-10 07:31:04,442 WARN L188 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2019-09-10 07:31:04,849 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2019-09-10 07:31:05,237 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 07:31:05,538 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2019-09-10 07:31:05,856 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-10 07:31:06,327 WARN L188 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2019-09-10 07:31:06,679 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2019-09-10 07:31:07,046 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-10 07:31:07,288 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-09-10 07:31:07,568 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-10 07:31:08,436 WARN L188 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2019-09-10 07:31:08,749 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2019-09-10 07:31:09,407 WARN L188 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2019-09-10 07:31:10,070 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2019-09-10 07:31:10,364 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2019-09-10 07:31:10,865 WARN L188 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:31:11,125 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2019-09-10 07:31:11,396 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:31:11,759 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-10 07:31:12,264 WARN L188 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 07:31:12,772 WARN L188 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 07:31:12,999 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:31:13,267 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-10 07:31:13,535 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-10 07:31:13,804 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:31:14,216 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2019-09-10 07:31:14,842 WARN L188 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 07:31:15,228 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2019-09-10 07:31:15,526 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2019-09-10 07:31:15,813 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-09-10 07:31:16,324 WARN L188 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 07:31:16,582 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2019-09-10 07:31:17,116 WARN L188 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2019-09-10 07:31:17,514 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 70 [2019-09-10 07:31:17,951 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 07:31:18,428 WARN L188 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2019-09-10 07:31:18,818 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2019-09-10 07:31:19,106 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-10 07:31:19,381 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2019-09-10 07:31:19,869 WARN L188 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-10 07:31:20,280 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2019-09-10 07:31:20,668 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2019-09-10 07:31:21,176 WARN L188 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 07:31:21,546 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-10 07:31:21,822 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2019-09-10 07:31:22,346 WARN L188 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2019-09-10 07:31:22,744 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2019-09-10 07:31:23,107 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2019-09-10 07:31:23,387 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2019-09-10 07:31:24,159 WARN L188 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:31:26,616 WARN L188 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 07:31:27,115 WARN L188 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-10 07:31:27,423 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 07:31:27,687 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:31:28,087 WARN L188 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-10 07:31:29,146 WARN L188 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 07:31:29,773 WARN L188 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 07:31:30,023 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:31:30,410 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2019-09-10 07:31:30,749 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 07:31:31,061 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 07:31:31,357 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:31:31,758 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 07:31:32,189 WARN L188 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 07:31:32,463 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2019-09-10 07:31:32,938 WARN L188 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2019-09-10 07:31:33,287 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-09-10 07:31:33,791 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2019-09-10 07:31:34,345 WARN L188 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-09-10 07:31:34,849 WARN L188 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-10 07:31:35,228 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2019-09-10 07:31:35,572 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-10 07:31:36,132 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 68 [2019-09-10 07:31:36,416 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2019-09-10 07:31:36,822 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2019-09-10 07:31:37,288 WARN L188 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2019-09-10 07:31:37,742 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-10 07:31:38,173 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-10 07:31:38,409 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-10 07:31:38,661 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-09-10 07:31:39,048 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2019-09-10 07:31:39,410 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 07:31:39,768 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-09-10 07:31:40,557 WARN L188 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2019-09-10 07:31:40,864 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2019-09-10 07:31:41,337 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-10 07:31:41,681 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 68 [2019-09-10 07:31:41,937 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-09-10 07:31:42,261 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2019-09-10 07:31:42,575 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-09-10 07:31:42,876 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2019-09-10 07:31:43,546 WARN L188 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2019-09-10 07:31:43,931 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-09-10 07:31:44,209 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2019-09-10 07:31:45,180 WARN L188 SmtUtils]: Spent 873.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2019-09-10 07:31:45,524 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-09-10 07:31:45,846 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2019-09-10 07:31:46,467 WARN L188 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-09-10 07:31:46,947 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2019-09-10 07:31:47,285 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-09-10 07:31:47,678 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2019-09-10 07:31:48,002 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-10 07:31:48,379 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2019-09-10 07:31:48,693 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2019-09-10 07:31:49,107 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2019-09-10 07:31:49,762 WARN L188 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2019-09-10 07:31:50,242 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2019-09-10 07:31:50,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:31:50,245 INFO L93 Difference]: Finished difference Result 23848 states and 31820 transitions. [2019-09-10 07:31:50,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 182 states. [2019-09-10 07:31:50,245 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 114 [2019-09-10 07:31:50,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:31:50,263 INFO L225 Difference]: With dead ends: 23848 [2019-09-10 07:31:50,263 INFO L226 Difference]: Without dead ends: 23848 [2019-09-10 07:31:50,265 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 424 GetRequests, 193 SyntacticMatches, 17 SemanticMatches, 214 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16986 ImplicationChecksByTransitivity, 75.6s TimeCoverageRelationStatistics Valid=6033, Invalid=40407, Unknown=0, NotChecked=0, Total=46440 [2019-09-10 07:31:50,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23848 states. [2019-09-10 07:31:50,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23848 to 8985. [2019-09-10 07:31:50,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8985 states. [2019-09-10 07:31:50,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8985 states to 8985 states and 12001 transitions. [2019-09-10 07:31:50,379 INFO L78 Accepts]: Start accepts. Automaton has 8985 states and 12001 transitions. Word has length 114 [2019-09-10 07:31:50,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:31:50,380 INFO L475 AbstractCegarLoop]: Abstraction has 8985 states and 12001 transitions. [2019-09-10 07:31:50,380 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-09-10 07:31:50,380 INFO L276 IsEmpty]: Start isEmpty. Operand 8985 states and 12001 transitions. [2019-09-10 07:31:50,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-09-10 07:31:50,383 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:31:50,383 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:31:50,384 INFO L418 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:31:50,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:31:50,384 INFO L82 PathProgramCache]: Analyzing trace with hash 1884147708, now seen corresponding path program 1 times [2019-09-10 07:31:50,384 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:31:50,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:31:50,385 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:31:50,385 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:31:50,385 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:31:50,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:31:50,762 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 22 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:31:50,762 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:31:50,763 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:31:50,763 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 116 with the following transitions: [2019-09-10 07:31:50,763 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [53], [56], [61], [64], [69], [71], [74], [77], [80], [82], [84], [87], [90], [93], [95], [97], [100], [107], [109], [112], [113], [115], [124], [127], [131], [133], [136], [142], [145], [148], [150], [165], [167], [170], [173], [175], [183], [186], [188], [192], [194], [197], [200], [202], [228], [229], [233], [234], [235] [2019-09-10 07:31:50,766 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:31:50,766 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:31:50,773 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:31:51,003 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:31:51,004 INFO L272 AbstractInterpreter]: Visited 67 different actions 655 times. Merged at 44 different actions 493 times. Widened at 15 different actions 91 times. Performed 2007 root evaluator evaluations with a maximum evaluation depth of 5. Performed 2007 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 87 fixpoints after 18 different actions. Largest state had 87 variables. [2019-09-10 07:31:51,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:31:51,005 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:31:51,005 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:31:51,005 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 07:31:51,039 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:31:51,039 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:31:51,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:31:51,165 INFO L256 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 53 conjunts are in the unsatisfiable core [2019-09-10 07:31:51,169 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:31:51,492 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:52,085 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2019-09-10 07:31:52,914 WARN L188 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2019-09-10 07:31:53,193 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:53,538 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2019-09-10 07:31:53,749 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:53,749 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:53,751 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:54,075 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-10 07:31:54,277 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:54,278 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:54,279 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:55,246 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2019-09-10 07:31:55,248 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:55,391 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 30 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:31:55,392 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:31:56,688 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,688 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,689 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,689 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,689 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,689 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,690 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,690 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,690 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,691 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,691 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,691 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,692 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,692 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,692 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,693 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,693 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,693 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,694 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,694 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,694 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,695 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,695 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,695 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,695 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,696 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,696 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,697 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,697 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,697 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,698 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,698 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,698 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,699 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,699 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,699 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,699 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,700 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,700 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,700 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,701 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,701 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,701 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,702 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:31:56,703 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 7 [2019-09-10 07:31:56,777 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 47 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:31:56,781 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:31:56,781 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 26, 19] total 54 [2019-09-10 07:31:56,782 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:31:56,782 INFO L454 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-09-10 07:31:56,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-09-10 07:31:56,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=251, Invalid=2611, Unknown=0, NotChecked=0, Total=2862 [2019-09-10 07:31:56,784 INFO L87 Difference]: Start difference. First operand 8985 states and 12001 transitions. Second operand 39 states. [2019-09-10 07:31:58,774 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2019-09-10 07:31:58,987 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2019-09-10 07:31:59,401 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2019-09-10 07:31:59,789 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 59 [2019-09-10 07:32:00,148 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2019-09-10 07:32:02,714 WARN L188 SmtUtils]: Spent 2.46 s on a formula simplification. DAG size of input: 102 DAG size of output: 78 [2019-09-10 07:32:03,262 WARN L188 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 76 [2019-09-10 07:32:03,743 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 80 [2019-09-10 07:32:04,490 WARN L188 SmtUtils]: Spent 613.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 72 [2019-09-10 07:32:04,959 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 76 [2019-09-10 07:32:05,430 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 72 [2019-09-10 07:32:06,055 WARN L188 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 72 [2019-09-10 07:32:07,024 WARN L188 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 68 [2019-09-10 07:32:07,316 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-09-10 07:32:07,617 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2019-09-10 07:32:07,890 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 56 [2019-09-10 07:32:08,297 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 60 [2019-09-10 07:32:08,542 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-09-10 07:32:08,990 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 58 [2019-09-10 07:32:09,468 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 62 [2019-09-10 07:32:10,046 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2019-09-10 07:32:10,434 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 55 [2019-09-10 07:32:11,229 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-09-10 07:32:12,024 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2019-09-10 07:32:12,313 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 49 [2019-09-10 07:32:14,709 WARN L188 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 100 DAG size of output: 57 [2019-09-10 07:32:16,343 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 47 [2019-09-10 07:32:16,638 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 57 [2019-09-10 07:32:16,943 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 53 [2019-09-10 07:32:19,319 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2019-09-10 07:32:19,625 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 52 [2019-09-10 07:32:19,880 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 51 [2019-09-10 07:32:20,093 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-09-10 07:32:20,870 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-09-10 07:32:21,125 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2019-09-10 07:32:22,016 WARN L188 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 83 [2019-09-10 07:32:22,619 WARN L188 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 72 [2019-09-10 07:32:23,093 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 56 [2019-09-10 07:32:23,495 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2019-09-10 07:32:23,980 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 56 [2019-09-10 07:32:24,612 WARN L188 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 80 [2019-09-10 07:32:24,860 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2019-09-10 07:32:25,582 WARN L188 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 85 [2019-09-10 07:32:26,193 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-09-10 07:32:27,228 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2019-09-10 07:32:27,916 WARN L188 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 75 [2019-09-10 07:32:28,224 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 46 [2019-09-10 07:32:28,533 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 60 [2019-09-10 07:32:29,400 WARN L188 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 84 [2019-09-10 07:32:30,236 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2019-09-10 07:32:30,478 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 44 [2019-09-10 07:32:30,844 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 41 [2019-09-10 07:32:31,160 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 57 [2019-09-10 07:32:31,738 WARN L188 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 79 [2019-09-10 07:32:32,054 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 50 [2019-09-10 07:32:34,002 WARN L188 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 66 DAG size of output: 39 [2019-09-10 07:32:34,466 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 52 [2019-09-10 07:32:35,237 WARN L188 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 48 [2019-09-10 07:32:36,036 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 45 [2019-09-10 07:32:36,329 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2019-09-10 07:32:36,670 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 43 [2019-09-10 07:32:37,028 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2019-09-10 07:32:37,676 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 71 [2019-09-10 07:32:38,948 WARN L188 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 88 [2019-09-10 07:32:39,295 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2019-09-10 07:32:39,887 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2019-09-10 07:32:42,475 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2019-09-10 07:32:45,283 WARN L188 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 86 [2019-09-10 07:32:45,972 WARN L188 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2019-09-10 07:32:46,964 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 54 [2019-09-10 07:32:47,512 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 75 [2019-09-10 07:32:48,466 WARN L188 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 84 [2019-09-10 07:32:48,782 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 52 [2019-09-10 07:32:49,271 WARN L188 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2019-09-10 07:32:49,620 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 07:32:50,583 WARN L188 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 88 [2019-09-10 07:32:51,212 WARN L188 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 73 [2019-09-10 07:32:52,004 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 41 [2019-09-10 07:32:52,826 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2019-09-10 07:32:53,456 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-10 07:32:54,141 WARN L188 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 95 [2019-09-10 07:32:55,202 WARN L188 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 107 [2019-09-10 07:32:56,370 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-10 07:32:56,808 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 07:32:57,324 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 92 [2019-09-10 07:32:57,522 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 39 [2019-09-10 07:32:59,066 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 92 [2019-09-10 07:33:00,397 WARN L188 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 103 [2019-09-10 07:33:02,370 WARN L188 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 88 DAG size of output: 68 [2019-09-10 07:33:03,067 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2019-09-10 07:33:03,353 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2019-09-10 07:33:03,777 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-10 07:33:06,099 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2019-09-10 07:33:08,968 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 99 [2019-09-10 07:33:09,954 WARN L188 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 99 [2019-09-10 07:33:11,436 WARN L188 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 95 [2019-09-10 07:33:12,070 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2019-09-10 07:33:12,603 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2019-09-10 07:33:13,543 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2019-09-10 07:33:14,355 WARN L188 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-10 07:33:15,293 WARN L188 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 96 [2019-09-10 07:33:17,597 WARN L188 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 86 [2019-09-10 07:33:17,834 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 43 [2019-09-10 07:33:18,486 WARN L188 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 57 [2019-09-10 07:33:18,905 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 66 [2019-09-10 07:33:19,576 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2019-09-10 07:33:20,876 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2019-09-10 07:33:21,168 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 43 [2019-09-10 07:33:21,715 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 69 [2019-09-10 07:33:22,089 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 84 [2019-09-10 07:33:22,724 WARN L188 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2019-09-10 07:33:23,590 WARN L188 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 110 [2019-09-10 07:33:24,089 WARN L188 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:33:24,460 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2019-09-10 07:33:25,362 WARN L188 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 97 [2019-09-10 07:33:26,055 WARN L188 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2019-09-10 07:33:26,256 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2019-09-10 07:33:26,714 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:33:27,059 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 07:33:29,734 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 92 [2019-09-10 07:33:31,989 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 80 [2019-09-10 07:33:32,481 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:33:34,367 WARN L188 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 147 DAG size of output: 108 [2019-09-10 07:33:34,745 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2019-09-10 07:33:35,365 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 85 [2019-09-10 07:33:36,150 WARN L188 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2019-09-10 07:33:36,529 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 71 [2019-09-10 07:33:37,081 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2019-09-10 07:33:37,901 WARN L188 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2019-09-10 07:33:38,649 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 96 [2019-09-10 07:33:43,003 WARN L188 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 120 DAG size of output: 95 [2019-09-10 07:33:45,848 WARN L188 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 67 [2019-09-10 07:33:47,587 WARN L188 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2019-09-10 07:33:48,246 WARN L188 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 75 [2019-09-10 07:33:49,160 WARN L188 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 07:33:49,740 WARN L188 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2019-09-10 07:33:50,068 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-10 07:33:51,523 WARN L188 SmtUtils]: Spent 976.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 113 [2019-09-10 07:33:52,730 WARN L188 SmtUtils]: Spent 933.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 109 [2019-09-10 07:33:53,044 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 43 [2019-09-10 07:33:53,799 WARN L188 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 78 [2019-09-10 07:33:55,104 WARN L188 SmtUtils]: Spent 480.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2019-09-10 07:33:55,489 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2019-09-10 07:33:56,418 WARN L188 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2019-09-10 07:33:58,757 WARN L188 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:33:59,356 WARN L188 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2019-09-10 07:33:59,697 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-10 07:34:00,353 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 99 [2019-09-10 07:34:01,115 WARN L188 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 97 [2019-09-10 07:34:02,330 WARN L188 SmtUtils]: Spent 993.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 89 [2019-09-10 07:34:02,919 WARN L188 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 66 [2019-09-10 07:34:03,992 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 78 [2019-09-10 07:34:05,320 WARN L188 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2019-09-10 07:34:06,951 WARN L188 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 63 [2019-09-10 07:34:07,374 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2019-09-10 07:34:07,766 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 71 [2019-09-10 07:34:08,212 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 84 [2019-09-10 07:34:09,104 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2019-09-10 07:34:09,505 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2019-09-10 07:34:10,141 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:34:10,998 WARN L188 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 81 [2019-09-10 07:34:12,063 WARN L188 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 106 [2019-09-10 07:34:12,377 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 44 [2019-09-10 07:34:13,684 WARN L188 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:34:14,164 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2019-09-10 07:34:14,795 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2019-09-10 07:34:15,419 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 75 [2019-09-10 07:34:16,162 WARN L188 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 07:34:16,690 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2019-09-10 07:34:16,923 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-10 07:34:17,558 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2019-09-10 07:34:17,826 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:34:20,634 WARN L188 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 108 DAG size of output: 91 [2019-09-10 07:34:21,432 WARN L188 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 97 [2019-09-10 07:34:22,089 WARN L188 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 72 [2019-09-10 07:34:22,793 WARN L188 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2019-09-10 07:34:24,108 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2019-09-10 07:34:25,201 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 67 [2019-09-10 07:34:25,632 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2019-09-10 07:34:26,430 WARN L188 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2019-09-10 07:34:28,821 WARN L188 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2019-09-10 07:34:29,304 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2019-09-10 07:34:29,526 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-10 07:34:30,043 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 37 [2019-09-10 07:34:30,374 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:34:30,776 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2019-09-10 07:34:34,507 WARN L188 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 125 DAG size of output: 83 [2019-09-10 07:34:35,195 WARN L188 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 89 [2019-09-10 07:34:35,587 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 41 [2019-09-10 07:34:36,743 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2019-09-10 07:34:37,379 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 78 [2019-09-10 07:34:40,087 WARN L188 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2019-09-10 07:34:40,542 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 07:34:41,206 WARN L188 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2019-09-10 07:34:42,074 WARN L188 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:34:42,733 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 71 [2019-09-10 07:34:44,586 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 07:34:45,355 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2019-09-10 07:34:45,773 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2019-09-10 07:34:48,295 WARN L188 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:34:49,078 WARN L188 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 74 [2019-09-10 07:34:49,827 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 43 [2019-09-10 07:34:50,637 WARN L188 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2019-09-10 07:34:50,902 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:34:51,605 WARN L188 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2019-09-10 07:34:53,594 WARN L188 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 123 DAG size of output: 81 [2019-09-10 07:34:55,672 WARN L188 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 117 DAG size of output: 106 [2019-09-10 07:34:56,682 WARN L188 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 93 [2019-09-10 07:34:59,677 WARN L188 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 107 DAG size of output: 86 [2019-09-10 07:35:00,692 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 70 [2019-09-10 07:35:02,442 WARN L188 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2019-09-10 07:35:03,311 WARN L188 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 66 [2019-09-10 07:35:03,851 WARN L188 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2019-09-10 07:35:04,193 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2019-09-10 07:35:07,431 WARN L188 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-10 07:35:07,966 WARN L188 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2019-09-10 07:35:08,982 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2019-09-10 07:35:09,496 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:35:10,409 WARN L188 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 87 [2019-09-10 07:35:11,275 WARN L188 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2019-09-10 07:35:12,620 WARN L188 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 69 [2019-09-10 07:35:13,577 WARN L188 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 79 [2019-09-10 07:35:14,347 WARN L188 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 74 [2019-09-10 07:35:16,989 WARN L188 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2019-09-10 07:35:18,645 WARN L188 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 70 [2019-09-10 07:35:19,229 WARN L188 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2019-09-10 07:35:19,656 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 72 [2019-09-10 07:35:20,265 WARN L188 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2019-09-10 07:35:23,122 WARN L188 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 85 [2019-09-10 07:35:26,020 WARN L188 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 111 DAG size of output: 102 [2019-09-10 07:35:26,440 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 47 [2019-09-10 07:35:27,610 WARN L188 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2019-09-10 07:35:28,433 WARN L188 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 67 [2019-09-10 07:35:30,337 WARN L188 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2019-09-10 07:35:31,179 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2019-09-10 07:35:31,536 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2019-09-10 07:35:32,086 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2019-09-10 07:35:33,064 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-10 07:35:34,792 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-10 07:35:35,505 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2019-09-10 07:35:36,176 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 66 [2019-09-10 07:35:36,648 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 44 [2019-09-10 07:35:37,515 WARN L188 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 71 [2019-09-10 07:35:39,870 WARN L188 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:35:40,255 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 47 [2019-09-10 07:35:40,944 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2019-09-10 07:35:41,374 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 51 [2019-09-10 07:35:43,033 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 07:35:43,527 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36 [2019-09-10 07:35:43,805 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2019-09-10 07:35:45,328 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:35:45,984 WARN L188 SmtUtils]: Spent 477.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 71 [2019-09-10 07:35:46,394 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2019-09-10 07:35:46,975 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 70 [2019-09-10 07:35:47,547 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 53 [2019-09-10 07:35:47,934 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 46 [2019-09-10 07:35:48,675 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-09-10 07:35:50,963 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-10 07:35:51,562 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2019-09-10 07:35:51,778 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 50 [2019-09-10 07:35:52,555 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-10 07:35:53,943 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2019-09-10 07:35:55,228 WARN L188 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-10 07:35:55,894 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-10 07:35:57,370 WARN L188 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 75 [2019-09-10 07:35:57,720 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:35:58,253 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 69 [2019-09-10 07:35:58,762 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:35:59,319 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 52 [2019-09-10 07:35:59,694 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 50 [2019-09-10 07:36:00,162 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 50 [2019-09-10 07:36:00,895 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 07:36:01,940 WARN L188 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 54 [2019-09-10 07:36:02,426 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-10 07:36:03,207 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2019-09-10 07:36:03,678 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-10 07:36:04,871 WARN L188 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 73 [2019-09-10 07:36:05,493 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2019-09-10 07:36:06,195 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 56 [2019-09-10 07:36:06,566 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 49 [2019-09-10 07:36:07,808 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2019-09-10 07:36:08,510 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 07:36:09,792 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 53 [2019-09-10 07:36:12,239 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2019-09-10 07:36:13,731 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 59 [2019-09-10 07:36:14,398 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:36:15,764 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:36:16,165 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2019-09-10 07:36:16,628 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:36:19,324 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-10 07:36:20,624 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 07:36:23,765 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2019-09-10 07:36:24,924 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2019-09-10 07:36:25,241 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-09-10 07:36:28,770 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2019-09-10 07:36:29,110 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2019-09-10 07:36:29,388 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-10 07:36:29,824 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 07:36:30,945 WARN L188 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 07:36:31,351 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 07:36:31,824 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 43 [2019-09-10 07:36:32,219 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 72 [2019-09-10 07:36:32,819 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 54 [2019-09-10 07:36:33,340 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 44 [2019-09-10 07:36:33,724 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 49 [2019-09-10 07:36:34,074 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 53 [2019-09-10 07:36:34,694 WARN L188 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 69 [2019-09-10 07:36:35,016 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 53 [2019-09-10 07:36:35,532 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2019-09-10 07:36:35,893 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 50 [2019-09-10 07:36:38,389 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2019-09-10 07:36:40,173 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2019-09-10 07:36:41,225 WARN L188 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 97 [2019-09-10 07:36:41,838 WARN L188 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 07:36:42,300 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 07:36:42,646 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-10 07:36:43,488 WARN L188 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2019-09-10 07:36:43,972 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 74 [2019-09-10 07:36:45,365 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 44 [2019-09-10 07:36:47,145 WARN L188 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 81 [2019-09-10 07:36:47,898 WARN L188 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 85 [2019-09-10 07:36:48,770 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2019-09-10 07:36:49,104 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 44 [2019-09-10 07:36:50,195 WARN L188 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 82 [2019-09-10 07:36:52,283 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 54 [2019-09-10 07:36:52,628 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 51 [2019-09-10 07:36:53,971 WARN L188 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 104 DAG size of output: 94 [2019-09-10 07:36:55,713 WARN L188 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 113 DAG size of output: 101 [2019-09-10 07:36:55,925 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2019-09-10 07:36:57,076 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 47 [2019-09-10 07:36:57,673 WARN L188 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 76 [2019-09-10 07:36:57,874 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-09-10 07:36:58,600 WARN L188 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 78 [2019-09-10 07:36:59,143 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 58 [2019-09-10 07:36:59,446 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 41 [2019-09-10 07:36:59,859 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2019-09-10 07:37:00,410 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 34 [2019-09-10 07:37:00,838 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2019-09-10 07:37:01,199 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2019-09-10 07:37:02,023 WARN L188 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 94 [2019-09-10 07:37:02,598 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-10 07:37:03,054 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-10 07:37:03,904 WARN L188 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2019-09-10 07:37:04,920 WARN L188 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 78 [2019-09-10 07:37:08,813 WARN L188 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 106 DAG size of output: 73 [2019-09-10 07:37:09,245 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 43 [2019-09-10 07:37:09,979 WARN L188 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 77 [2019-09-10 07:37:10,325 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2019-09-10 07:37:11,181 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2019-09-10 07:37:11,638 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-10 07:37:16,065 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 07:37:16,463 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 38 [2019-09-10 07:37:16,917 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 42 [2019-09-10 07:37:17,419 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2019-09-10 07:37:19,294 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2019-09-10 07:37:19,893 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-10 07:37:20,638 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-10 07:37:21,495 WARN L188 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 102 [2019-09-10 07:37:23,806 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 78 [2019-09-10 07:37:24,569 WARN L188 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 88 [2019-09-10 07:37:25,067 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 80 [2019-09-10 07:37:25,324 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2019-09-10 07:37:26,173 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-10 07:37:26,827 WARN L188 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 98 [2019-09-10 07:37:27,267 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 07:37:27,800 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43 [2019-09-10 07:37:28,203 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 53 [2019-09-10 07:37:28,590 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 46 [2019-09-10 07:37:28,880 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37 [2019-09-10 07:37:29,236 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-10 07:37:31,121 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 94 [2019-09-10 07:37:31,484 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:37:32,005 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2019-09-10 07:37:34,435 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:37:34,938 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-10 07:37:35,561 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 102 [2019-09-10 07:37:36,904 WARN L188 SmtUtils]: Spent 958.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 121 [2019-09-10 07:37:37,627 WARN L188 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-10 07:37:38,389 WARN L188 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 109 [2019-09-10 07:37:38,706 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-10 07:37:39,610 WARN L188 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 106 [2019-09-10 07:37:43,960 WARN L188 SmtUtils]: Spent 3.22 s on a formula simplification. DAG size of input: 143 DAG size of output: 117 [2019-09-10 07:37:44,719 WARN L188 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 07:37:44,990 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2019-09-10 07:37:45,286 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-10 07:37:45,846 WARN L188 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2019-09-10 07:37:46,094 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2019-09-10 07:37:47,066 WARN L188 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 113 [2019-09-10 07:37:48,282 WARN L188 SmtUtils]: Spent 983.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 112 [2019-09-10 07:37:49,387 WARN L188 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 109 [2019-09-10 07:37:49,764 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:37:50,342 WARN L188 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2019-09-10 07:37:50,715 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2019-09-10 07:37:50,972 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-09-10 07:37:51,368 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2019-09-10 07:37:51,617 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2019-09-10 07:37:52,320 WARN L188 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2019-09-10 07:37:55,479 WARN L188 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 97 [2019-09-10 07:37:55,816 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:37:56,858 WARN L188 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 73 [2019-09-10 07:37:57,585 WARN L188 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:37:58,145 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-09-10 07:37:58,837 WARN L188 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 07:37:59,165 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:38:01,756 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-10 07:38:02,132 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2019-09-10 07:38:02,511 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2019-09-10 07:38:03,010 WARN L188 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:38:04,396 WARN L188 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 123 [2019-09-10 07:38:04,993 WARN L188 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:38:08,544 WARN L188 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 108 [2019-09-10 07:38:09,487 WARN L188 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 84 [2019-09-10 07:38:10,214 WARN L188 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-09-10 07:38:10,983 WARN L188 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2019-09-10 07:38:11,402 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2019-09-10 07:38:12,679 WARN L188 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 106 [2019-09-10 07:38:14,271 WARN L188 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 145 DAG size of output: 121 [2019-09-10 07:38:14,756 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2019-09-10 07:38:15,242 WARN L188 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2019-09-10 07:38:15,524 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2019-09-10 07:38:16,253 WARN L188 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2019-09-10 07:38:18,357 WARN L188 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2019-09-10 07:38:19,409 WARN L188 SmtUtils]: Spent 781.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 82 [2019-09-10 07:38:20,488 WARN L188 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2019-09-10 07:38:24,198 WARN L188 SmtUtils]: Spent 3.27 s on a formula simplification. DAG size of input: 146 DAG size of output: 125 [2019-09-10 07:38:24,610 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:38:25,579 WARN L188 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 07:38:26,037 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2019-09-10 07:38:26,411 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-10 07:38:27,158 WARN L188 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2019-09-10 07:38:28,059 WARN L188 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 84 [2019-09-10 07:38:28,652 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2019-09-10 07:38:29,154 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2019-09-10 07:38:31,916 WARN L188 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 121 DAG size of output: 99 [2019-09-10 07:38:32,273 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:38:32,717 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 80 [2019-09-10 07:38:33,228 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:38:33,602 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2019-09-10 07:38:33,946 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2019-09-10 07:38:34,483 WARN L188 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2019-09-10 07:38:34,770 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-10 07:38:35,233 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:38:36,220 WARN L188 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 108 [2019-09-10 07:38:37,125 WARN L188 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 82 [2019-09-10 07:38:37,694 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2019-09-10 07:38:38,317 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2019-09-10 07:38:38,753 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 07:38:39,216 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:38:39,685 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 76 [2019-09-10 07:38:40,064 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2019-09-10 07:38:40,433 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2019-09-10 07:38:40,842 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2019-09-10 07:38:41,161 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-10 07:38:42,305 WARN L188 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 99 [2019-09-10 07:38:44,239 WARN L188 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 113 DAG size of output: 104 [2019-09-10 07:38:47,040 WARN L188 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 105 DAG size of output: 94 [2019-09-10 07:38:47,670 WARN L188 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2019-09-10 07:38:48,145 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 07:38:49,256 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-09-10 07:38:49,871 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2019-09-10 07:38:50,554 WARN L188 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:38:51,094 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:38:51,791 WARN L188 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 84 [2019-09-10 07:38:52,980 WARN L188 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:38:54,151 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-10 07:38:54,983 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-09-10 07:38:58,467 WARN L188 SmtUtils]: Spent 963.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 95 [2019-09-10 07:38:58,889 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:39:02,416 WARN L188 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 83 [2019-09-10 07:39:04,937 WARN L188 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 85 [2019-09-10 07:39:07,549 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:39:08,501 WARN L188 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81 [2019-09-10 07:39:09,724 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-10 07:39:11,457 WARN L188 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:39:11,895 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:39:12,315 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 07:39:14,992 WARN L188 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2019-09-10 07:39:15,560 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2019-09-10 07:39:16,046 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2019-09-10 07:39:17,054 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 07:39:19,595 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 07:39:20,244 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-10 07:39:21,087 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 07:39:21,919 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-10 07:39:23,190 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-09-10 07:39:24,005 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2019-09-10 07:39:24,466 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-10 07:39:25,388 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2019-09-10 07:39:25,903 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-10 07:39:26,705 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2019-09-10 07:39:27,314 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2019-09-10 07:39:27,628 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-10 07:39:28,037 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2019-09-10 07:39:28,304 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2019-09-10 07:39:28,703 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:39:29,830 WARN L188 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:39:30,238 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:39:30,953 WARN L188 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 100 [2019-09-10 07:39:31,492 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2019-09-10 07:39:31,879 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:39:32,466 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2019-09-10 07:39:33,056 WARN L188 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2019-09-10 07:39:33,364 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:39:34,660 WARN L188 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:39:35,170 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:39:36,936 WARN L188 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2019-09-10 07:39:37,483 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2019-09-10 07:39:39,246 WARN L188 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 99 [2019-09-10 07:39:39,966 WARN L188 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 97 [2019-09-10 07:39:41,461 WARN L188 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 96 [2019-09-10 07:39:42,607 WARN L188 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 103 [2019-09-10 07:39:45,543 WARN L188 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 100 [2019-09-10 07:39:46,279 WARN L188 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 96 [2019-09-10 07:39:46,898 WARN L188 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:39:47,243 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:39:48,018 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 07:39:48,972 WARN L188 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 96 [2019-09-10 07:39:50,213 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-10 07:39:50,998 WARN L188 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 99 [2019-09-10 07:39:51,546 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-10 07:39:52,502 WARN L188 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 94 [2019-09-10 07:39:53,586 WARN L188 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104 [2019-09-10 07:39:55,474 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 96 [2019-09-10 07:39:55,986 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:39:56,893 WARN L188 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 100 [2019-09-10 07:39:57,407 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 07:39:58,017 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:39:58,445 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:39:58,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:39:58,463 INFO L93 Difference]: Finished difference Result 80538 states and 107024 transitions. [2019-09-10 07:39:58,463 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 856 states. [2019-09-10 07:39:58,463 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 115 [2019-09-10 07:39:58,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:39:58,534 INFO L225 Difference]: With dead ends: 80538 [2019-09-10 07:39:58,534 INFO L226 Difference]: Without dead ends: 80538 [2019-09-10 07:39:58,787 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1102 GetRequests, 190 SyntacticMatches, 7 SemanticMatches, 905 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 382405 ImplicationChecksByTransitivity, 444.0s TimeCoverageRelationStatistics Valid=55601, Invalid=766135, Unknown=6, NotChecked=0, Total=821742 [2019-09-10 07:39:58,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80538 states. [2019-09-10 07:39:59,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80538 to 22885. [2019-09-10 07:39:59,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22885 states. [2019-09-10 07:39:59,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22885 states to 22885 states and 30945 transitions. [2019-09-10 07:39:59,231 INFO L78 Accepts]: Start accepts. Automaton has 22885 states and 30945 transitions. Word has length 115 [2019-09-10 07:39:59,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:39:59,231 INFO L475 AbstractCegarLoop]: Abstraction has 22885 states and 30945 transitions. [2019-09-10 07:39:59,231 INFO L476 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-09-10 07:39:59,231 INFO L276 IsEmpty]: Start isEmpty. Operand 22885 states and 30945 transitions. [2019-09-10 07:39:59,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-09-10 07:39:59,235 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:39:59,235 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:39:59,236 INFO L418 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:39:59,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:39:59,236 INFO L82 PathProgramCache]: Analyzing trace with hash 989996473, now seen corresponding path program 2 times [2019-09-10 07:39:59,237 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:39:59,237 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:59,238 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:39:59,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:39:59,238 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:39:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:39:59,639 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 23 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:39:59,640 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:39:59,640 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:39:59,640 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 07:39:59,640 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 07:39:59,640 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:39:59,640 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 07:39:59,651 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-10 07:39:59,652 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-09-10 07:39:59,772 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-09-10 07:39:59,773 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 07:39:59,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 62 conjunts are in the unsatisfiable core [2019-09-10 07:39:59,779 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:40:00,565 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:01,071 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:01,380 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 35 [2019-09-10 07:40:01,737 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2019-09-10 07:40:01,738 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:01,959 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-09-10 07:40:02,219 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2019-09-10 07:40:02,299 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 23 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:40:02,300 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:40:02,926 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:02,927 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:02,927 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:02,927 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:02,928 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:02,928 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:02,928 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:02,929 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:02,929 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:02,929 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:02,929 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:40:03,172 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2019-09-10 07:40:04,087 WARN L188 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 07:40:04,937 WARN L188 SmtUtils]: Spent 676.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-09-10 07:40:05,407 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-09-10 07:40:06,256 WARN L188 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-09-10 07:40:07,042 WARN L188 SmtUtils]: Spent 578.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-09-10 07:40:07,657 WARN L188 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-09-10 07:40:08,154 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-09-10 07:40:08,156 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-09-10 07:40:08,157 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-09-10 07:40:08,157 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-09-10 07:40:08,157 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-09-10 07:40:09,237 WARN L188 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2019-09-10 07:40:09,661 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 53 [2019-09-10 07:40:10,499 WARN L188 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-10 07:40:10,841 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2019-09-10 07:40:11,320 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 48 [2019-09-10 07:40:11,323 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-10 07:40:11,910 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 13 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:40:11,916 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:40:11,916 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 27, 29] total 70 [2019-09-10 07:40:11,916 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:40:11,917 INFO L454 AbstractCegarLoop]: Interpolant automaton has 43 states [2019-09-10 07:40:11,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2019-09-10 07:40:11,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=416, Invalid=4414, Unknown=0, NotChecked=0, Total=4830 [2019-09-10 07:40:11,918 INFO L87 Difference]: Start difference. First operand 22885 states and 30945 transitions. Second operand 43 states. [2019-09-10 07:40:16,073 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 43 [2019-09-10 07:40:16,271 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2019-09-10 07:40:16,611 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 45 [2019-09-10 07:40:16,967 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 48 [2019-09-10 07:40:17,244 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2019-09-10 07:40:17,584 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2019-09-10 07:40:17,888 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2019-09-10 07:40:18,150 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2019-09-10 07:40:18,540 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2019-09-10 07:40:18,948 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 55 [2019-09-10 07:40:19,189 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2019-09-10 07:40:19,570 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 56 [2019-09-10 07:40:19,914 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 50 [2019-09-10 07:40:20,193 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2019-09-10 07:40:20,574 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2019-09-10 07:40:20,943 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 53 [2019-09-10 07:40:21,200 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 50