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-var-start-time.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 06:46:29,467 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 06:46:29,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 06:46:29,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-10 06:46:29,525 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 06:46:29,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 06:46:29,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 06:46:29,529 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 06:46:29,532 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 06:46:29,533 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 06:46:29,533 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 06:46:29,534 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 06:46:29,534 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 06:46:29,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 06:46:29,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 06:46:29,538 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 06:46:29,567 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 06:46:29,567 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 06:46:29,567 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 06:46:29,567 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 06:46:29,568 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 06:46:29,568 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 06:46:29,568 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 06:46:29,569 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 06:46:29,569 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 06:46:29,569 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 06:46:29,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 06:46:29,572 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 06:46:29,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 06:46:29,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 06:46:29,572 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 06:46:29,573 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 06:46:29,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 06:46:29,573 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 06:46:29,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 06:46:29,574 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 06:46:29,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 06:46:29,574 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 06:46:29,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 06:46:29,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 06:46:29,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 06:46:29,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 06:46:29,576 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 06:46:29,576 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 06:46:29,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 06:46:29,576 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 06:46:29,609 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 06:46:29,622 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 06:46:29,625 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 06:46:29,626 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 06:46:29,627 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 06:46:29,627 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2019-09-10 06:46:29,685 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2880edad5/af609b967f4449b6acc704fc156f45e4/FLAG85692065a [2019-09-10 06:46:30,112 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 06:46:30,113 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2019-09-10 06:46:30,121 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2880edad5/af609b967f4449b6acc704fc156f45e4/FLAG85692065a [2019-09-10 06:46:30,509 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2880edad5/af609b967f4449b6acc704fc156f45e4 [2019-09-10 06:46:30,518 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 06:46:30,519 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 06:46:30,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 06:46:30,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 06:46:30,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 06:46:30,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 06:46:30" (1/1) ... [2019-09-10 06:46:30,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2df20252 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:46:30, skipping insertion in model container [2019-09-10 06:46:30,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 06:46:30" (1/1) ... [2019-09-10 06:46:30,538 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 06:46:30,589 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 06:46:30,791 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 06:46:30,803 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 06:46:30,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 06:46:30,981 INFO L192 MainTranslator]: Completed translation [2019-09-10 06:46:30,984 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:46:30 WrapperNode [2019-09-10 06:46:30,985 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 06:46:30,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 06:46:30,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 06:46:30,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 06:46:30,996 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:46:30" (1/1) ... [2019-09-10 06:46:30,996 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:46:30" (1/1) ... [2019-09-10 06:46:31,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:46:30" (1/1) ... [2019-09-10 06:46:31,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:46:30" (1/1) ... [2019-09-10 06:46:31,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:46:30" (1/1) ... [2019-09-10 06:46:31,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:46:30" (1/1) ... [2019-09-10 06:46:31,024 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:46:30" (1/1) ... [2019-09-10 06:46:31,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 06:46:31,027 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 06:46:31,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 06:46:31,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 06:46:31,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:46:30" (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 06:46:31,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 06:46:31,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 06:46:31,088 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 06:46:31,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 06:46:31,088 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-10 06:46:31,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-10 06:46:31,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-09-10 06:46:31,089 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-10 06:46:31,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 06:46:31,089 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-10 06:46:31,089 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-10 06:46:31,089 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-10 06:46:31,089 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-10 06:46:31,090 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-10 06:46:31,090 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-10 06:46:31,090 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-10 06:46:31,090 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 06:46:31,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 06:46:31,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 06:46:31,686 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 06:46:31,687 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 06:46:31,688 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 06:46:31 BoogieIcfgContainer [2019-09-10 06:46:31,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 06:46:31,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 06:46:31,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 06:46:31,692 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 06:46:31,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 06:46:30" (1/3) ... [2019-09-10 06:46:31,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5982e606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 06:46:31, skipping insertion in model container [2019-09-10 06:46:31,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 06:46:30" (2/3) ... [2019-09-10 06:46:31,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5982e606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 06:46:31, skipping insertion in model container [2019-09-10 06:46:31,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 06:46:31" (3/3) ... [2019-09-10 06:46:31,696 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2019-09-10 06:46:31,705 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 06:46:31,713 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 06:46:31,729 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 06:46:31,755 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 06:46:31,756 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 06:46:31,756 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 06:46:31,756 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 06:46:31,756 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 06:46:31,757 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 06:46:31,757 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 06:46:31,757 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 06:46:31,775 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states. [2019-09-10 06:46:31,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-09-10 06:46:31,788 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:46:31,789 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 06:46:31,791 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:46:31,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:46:31,798 INFO L82 PathProgramCache]: Analyzing trace with hash 365919119, now seen corresponding path program 1 times [2019-09-10 06:46:31,800 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:46:31,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:31,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:46:31,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:31,853 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:46:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:46:32,137 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 06:46:32,139 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:46:32,139 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:46:32,140 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:46:32,145 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:46:32,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:46:32,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:46:32,162 INFO L87 Difference]: Start difference. First operand 92 states. Second operand 3 states. [2019-09-10 06:46:32,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:46:32,232 INFO L93 Difference]: Finished difference Result 144 states and 223 transitions. [2019-09-10 06:46:32,233 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:46:32,234 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2019-09-10 06:46:32,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:46:32,253 INFO L225 Difference]: With dead ends: 144 [2019-09-10 06:46:32,253 INFO L226 Difference]: Without dead ends: 136 [2019-09-10 06:46:32,255 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 06:46:32,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-09-10 06:46:32,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 134. [2019-09-10 06:46:32,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134 states. [2019-09-10 06:46:32,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 198 transitions. [2019-09-10 06:46:32,315 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 198 transitions. Word has length 42 [2019-09-10 06:46:32,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:46:32,316 INFO L475 AbstractCegarLoop]: Abstraction has 134 states and 198 transitions. [2019-09-10 06:46:32,316 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 06:46:32,317 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 198 transitions. [2019-09-10 06:46:32,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-09-10 06:46:32,319 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:46:32,319 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 06:46:32,320 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:46:32,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:46:32,320 INFO L82 PathProgramCache]: Analyzing trace with hash -79929744, now seen corresponding path program 1 times [2019-09-10 06:46:32,321 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:46:32,322 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:32,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:46:32,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:32,323 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:46:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:46:32,476 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 06:46:32,476 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:46:32,476 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:46:32,477 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:46:32,480 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:46:32,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:46:32,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:46:32,482 INFO L87 Difference]: Start difference. First operand 134 states and 198 transitions. Second operand 3 states. [2019-09-10 06:46:32,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:46:32,531 INFO L93 Difference]: Finished difference Result 212 states and 318 transitions. [2019-09-10 06:46:32,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:46:32,533 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2019-09-10 06:46:32,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:46:32,537 INFO L225 Difference]: With dead ends: 212 [2019-09-10 06:46:32,539 INFO L226 Difference]: Without dead ends: 212 [2019-09-10 06:46:32,540 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 06:46:32,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2019-09-10 06:46:32,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 210. [2019-09-10 06:46:32,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 210 states. [2019-09-10 06:46:32,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 317 transitions. [2019-09-10 06:46:32,579 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 317 transitions. Word has length 43 [2019-09-10 06:46:32,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:46:32,580 INFO L475 AbstractCegarLoop]: Abstraction has 210 states and 317 transitions. [2019-09-10 06:46:32,580 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 06:46:32,580 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 317 transitions. [2019-09-10 06:46:32,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-09-10 06:46:32,582 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:46:32,583 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:46:32,583 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:46:32,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:46:32,584 INFO L82 PathProgramCache]: Analyzing trace with hash -1825970920, now seen corresponding path program 1 times [2019-09-10 06:46:32,584 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:46:32,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:32,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:46:32,587 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:32,587 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:46:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:46:32,780 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 06:46:32,780 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:46:32,780 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 06:46:32,780 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:46:32,781 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 06:46:32,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 06:46:32,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 06:46:32,782 INFO L87 Difference]: Start difference. First operand 210 states and 317 transitions. Second operand 5 states. [2019-09-10 06:46:32,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:46:32,900 INFO L93 Difference]: Finished difference Result 768 states and 1188 transitions. [2019-09-10 06:46:32,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 06:46:32,901 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2019-09-10 06:46:32,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:46:32,906 INFO L225 Difference]: With dead ends: 768 [2019-09-10 06:46:32,906 INFO L226 Difference]: Without dead ends: 768 [2019-09-10 06:46:32,906 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-10 06:46:32,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2019-09-10 06:46:32,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 394. [2019-09-10 06:46:32,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 394 states. [2019-09-10 06:46:32,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 394 states to 394 states and 601 transitions. [2019-09-10 06:46:32,930 INFO L78 Accepts]: Start accepts. Automaton has 394 states and 601 transitions. Word has length 44 [2019-09-10 06:46:32,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:46:32,930 INFO L475 AbstractCegarLoop]: Abstraction has 394 states and 601 transitions. [2019-09-10 06:46:32,930 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 06:46:32,931 INFO L276 IsEmpty]: Start isEmpty. Operand 394 states and 601 transitions. [2019-09-10 06:46:32,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-09-10 06:46:32,932 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:46:32,932 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 06:46:32,933 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:46:32,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:46:32,933 INFO L82 PathProgramCache]: Analyzing trace with hash -789056467, now seen corresponding path program 1 times [2019-09-10 06:46:32,933 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:46:32,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:32,935 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:46:32,935 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:32,935 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:46:32,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:46:33,033 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 06:46:33,034 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:46:33,034 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 06:46:33,034 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:46:33,034 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 06:46:33,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 06:46:33,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-10 06:46:33,035 INFO L87 Difference]: Start difference. First operand 394 states and 601 transitions. Second operand 5 states. [2019-09-10 06:46:33,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:46:33,107 INFO L93 Difference]: Finished difference Result 982 states and 1499 transitions. [2019-09-10 06:46:33,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 06:46:33,108 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2019-09-10 06:46:33,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:46:33,118 INFO L225 Difference]: With dead ends: 982 [2019-09-10 06:46:33,118 INFO L226 Difference]: Without dead ends: 982 [2019-09-10 06:46:33,118 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-10 06:46:33,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2019-09-10 06:46:33,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 978. [2019-09-10 06:46:33,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 978 states. [2019-09-10 06:46:33,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1497 transitions. [2019-09-10 06:46:33,149 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1497 transitions. Word has length 45 [2019-09-10 06:46:33,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:46:33,150 INFO L475 AbstractCegarLoop]: Abstraction has 978 states and 1497 transitions. [2019-09-10 06:46:33,150 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 06:46:33,150 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1497 transitions. [2019-09-10 06:46:33,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 06:46:33,161 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:46:33,161 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 06:46:33,161 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:46:33,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:46:33,162 INFO L82 PathProgramCache]: Analyzing trace with hash 57272683, now seen corresponding path program 1 times [2019-09-10 06:46:33,162 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:46:33,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:33,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:46:33,165 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:33,165 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:46:33,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:46:33,215 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 06:46:33,216 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:46:33,216 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:46:33,216 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:46:33,217 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:46:33,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:46:33,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:46:33,217 INFO L87 Difference]: Start difference. First operand 978 states and 1497 transitions. Second operand 3 states. [2019-09-10 06:46:33,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:46:33,249 INFO L93 Difference]: Finished difference Result 1540 states and 2314 transitions. [2019-09-10 06:46:33,249 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:46:33,250 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2019-09-10 06:46:33,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:46:33,259 INFO L225 Difference]: With dead ends: 1540 [2019-09-10 06:46:33,259 INFO L226 Difference]: Without dead ends: 1540 [2019-09-10 06:46:33,259 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 06:46:33,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1540 states. [2019-09-10 06:46:33,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1540 to 1538. [2019-09-10 06:46:33,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1538 states. [2019-09-10 06:46:33,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1538 states to 1538 states and 2313 transitions. [2019-09-10 06:46:33,297 INFO L78 Accepts]: Start accepts. Automaton has 1538 states and 2313 transitions. Word has length 46 [2019-09-10 06:46:33,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:46:33,297 INFO L475 AbstractCegarLoop]: Abstraction has 1538 states and 2313 transitions. [2019-09-10 06:46:33,297 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 06:46:33,298 INFO L276 IsEmpty]: Start isEmpty. Operand 1538 states and 2313 transitions. [2019-09-10 06:46:33,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 06:46:33,299 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:46:33,300 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:46:33,300 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:46:33,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:46:33,300 INFO L82 PathProgramCache]: Analyzing trace with hash 318856598, now seen corresponding path program 1 times [2019-09-10 06:46:33,300 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:46:33,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:33,303 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:46:33,303 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:33,303 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:46:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:46:33,405 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 06:46:33,406 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:46:33,406 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 06:46:33,406 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:46:33,406 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 06:46:33,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 06:46:33,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 06:46:33,407 INFO L87 Difference]: Start difference. First operand 1538 states and 2313 transitions. Second operand 5 states. [2019-09-10 06:46:33,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:46:33,603 INFO L93 Difference]: Finished difference Result 2596 states and 3874 transitions. [2019-09-10 06:46:33,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 06:46:33,604 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2019-09-10 06:46:33,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:46:33,616 INFO L225 Difference]: With dead ends: 2596 [2019-09-10 06:46:33,617 INFO L226 Difference]: Without dead ends: 2596 [2019-09-10 06:46:33,617 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 06:46:33,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2596 states. [2019-09-10 06:46:33,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2596 to 2594. [2019-09-10 06:46:33,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2594 states. [2019-09-10 06:46:33,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2594 states to 2594 states and 3873 transitions. [2019-09-10 06:46:33,685 INFO L78 Accepts]: Start accepts. Automaton has 2594 states and 3873 transitions. Word has length 47 [2019-09-10 06:46:33,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:46:33,685 INFO L475 AbstractCegarLoop]: Abstraction has 2594 states and 3873 transitions. [2019-09-10 06:46:33,686 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 06:46:33,686 INFO L276 IsEmpty]: Start isEmpty. Operand 2594 states and 3873 transitions. [2019-09-10 06:46:33,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-10 06:46:33,687 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:46:33,687 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:46:33,687 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:46:33,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:46:33,688 INFO L82 PathProgramCache]: Analyzing trace with hash -495555397, now seen corresponding path program 1 times [2019-09-10 06:46:33,688 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:46:33,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:33,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:46:33,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:33,693 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:46:33,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:46:33,783 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 06:46:33,783 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:46:33,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 06:46:33,784 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:46:33,784 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 06:46:33,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 06:46:33,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 06:46:33,785 INFO L87 Difference]: Start difference. First operand 2594 states and 3873 transitions. Second operand 5 states. [2019-09-10 06:46:33,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:46:33,857 INFO L93 Difference]: Finished difference Result 5322 states and 7801 transitions. [2019-09-10 06:46:33,857 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 06:46:33,857 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2019-09-10 06:46:33,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:46:33,884 INFO L225 Difference]: With dead ends: 5322 [2019-09-10 06:46:33,885 INFO L226 Difference]: Without dead ends: 5322 [2019-09-10 06:46:33,885 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 06:46:33,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5322 states. [2019-09-10 06:46:33,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5322 to 2754. [2019-09-10 06:46:33,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2754 states. [2019-09-10 06:46:33,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2754 states to 2754 states and 4033 transitions. [2019-09-10 06:46:33,990 INFO L78 Accepts]: Start accepts. Automaton has 2754 states and 4033 transitions. Word has length 47 [2019-09-10 06:46:33,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:46:33,990 INFO L475 AbstractCegarLoop]: Abstraction has 2754 states and 4033 transitions. [2019-09-10 06:46:33,990 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 06:46:33,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2754 states and 4033 transitions. [2019-09-10 06:46:33,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-09-10 06:46:33,991 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:46:33,991 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:46:33,992 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:46:33,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:46:33,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1827271577, now seen corresponding path program 1 times [2019-09-10 06:46:33,992 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:46:33,993 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:33,994 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:46:33,994 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:33,994 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:46:34,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:46:34,072 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 06:46:34,073 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:46:34,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:46:34,073 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:46:34,074 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:46:34,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:46:34,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:46:34,075 INFO L87 Difference]: Start difference. First operand 2754 states and 4033 transitions. Second operand 3 states. [2019-09-10 06:46:34,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:46:34,109 INFO L93 Difference]: Finished difference Result 3466 states and 5008 transitions. [2019-09-10 06:46:34,110 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:46:34,110 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2019-09-10 06:46:34,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:46:34,125 INFO L225 Difference]: With dead ends: 3466 [2019-09-10 06:46:34,125 INFO L226 Difference]: Without dead ends: 3466 [2019-09-10 06:46:34,126 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 06:46:34,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3466 states. [2019-09-10 06:46:34,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3466 to 3444. [2019-09-10 06:46:34,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3444 states. [2019-09-10 06:46:34,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3444 states to 3444 states and 4987 transitions. [2019-09-10 06:46:34,200 INFO L78 Accepts]: Start accepts. Automaton has 3444 states and 4987 transitions. Word has length 48 [2019-09-10 06:46:34,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:46:34,201 INFO L475 AbstractCegarLoop]: Abstraction has 3444 states and 4987 transitions. [2019-09-10 06:46:34,201 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 06:46:34,201 INFO L276 IsEmpty]: Start isEmpty. Operand 3444 states and 4987 transitions. [2019-09-10 06:46:34,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-10 06:46:34,204 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:46:34,204 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 06:46:34,205 INFO L418 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:46:34,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:46:34,205 INFO L82 PathProgramCache]: Analyzing trace with hash 273056890, now seen corresponding path program 1 times [2019-09-10 06:46:34,205 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:46:34,206 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:34,206 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:46:34,207 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:34,207 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:46:34,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:46:34,494 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:46:34,495 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:46:34,495 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:46:34,496 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 68 with the following transitions: [2019-09-10 06:46:34,498 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [56], [59], [64], [75], [77], [80], [91], [93], [96], [107], [109], [112], [115], [117], [120], [121], [123], [125], [130], [143], [145], [158], [166], [185], [196], [198], [211], [219], [238], [249], [251], [253], [256], [259], [262], [264], [266], [314], [315], [319], [320], [321] [2019-09-10 06:46:34,550 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 06:46:34,551 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 06:46:34,647 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 06:46:34,977 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 06:46:34,980 INFO L272 AbstractInterpreter]: Visited 61 different actions 330 times. Merged at 37 different actions 234 times. Widened at 13 different actions 27 times. Performed 1033 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1033 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 39 fixpoints after 12 different actions. Largest state had 94 variables. [2019-09-10 06:46:34,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:46:34,985 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 06:46:34,985 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:46:34,986 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 06:46:35,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:46:35,004 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 06:46:35,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:46:35,115 INFO L256 TraceCheckSpWp]: Trace formula consists of 505 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-10 06:46:35,128 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 06:46:35,278 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 06:46:35,278 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 06:46:35,358 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe [2019-09-10 06:46:35,368 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 06:46:35,368 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4, 4] total 14 [2019-09-10 06:46:35,368 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 06:46:35,369 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-10 06:46:35,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-10 06:46:35,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-09-10 06:46:35,370 INFO L87 Difference]: Start difference. First operand 3444 states and 4987 transitions. Second operand 12 states. [2019-09-10 06:46:41,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:46:41,881 INFO L93 Difference]: Finished difference Result 39826 states and 55594 transitions. [2019-09-10 06:46:41,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2019-09-10 06:46:41,882 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 67 [2019-09-10 06:46:41,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:46:41,992 INFO L225 Difference]: With dead ends: 39826 [2019-09-10 06:46:41,993 INFO L226 Difference]: Without dead ends: 39826 [2019-09-10 06:46:41,996 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 230 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3780 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1765, Invalid=8135, Unknown=0, NotChecked=0, Total=9900 [2019-09-10 06:46:42,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39826 states. [2019-09-10 06:46:42,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39826 to 10734. [2019-09-10 06:46:42,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10734 states. [2019-09-10 06:46:42,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10734 states to 10734 states and 15180 transitions. [2019-09-10 06:46:42,494 INFO L78 Accepts]: Start accepts. Automaton has 10734 states and 15180 transitions. Word has length 67 [2019-09-10 06:46:42,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:46:42,495 INFO L475 AbstractCegarLoop]: Abstraction has 10734 states and 15180 transitions. [2019-09-10 06:46:42,495 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-10 06:46:42,496 INFO L276 IsEmpty]: Start isEmpty. Operand 10734 states and 15180 transitions. [2019-09-10 06:46:42,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-10 06:46:42,506 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:46:42,507 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] [2019-09-10 06:46:42,507 INFO L418 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:46:42,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:46:42,508 INFO L82 PathProgramCache]: Analyzing trace with hash 1476022815, now seen corresponding path program 1 times [2019-09-10 06:46:42,508 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:46:42,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:42,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:46:42,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:42,510 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:46:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:46:42,650 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:46:42,650 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:46:42,651 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:46:42,651 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:46:42,651 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:46:42,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:46:42,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:46:42,652 INFO L87 Difference]: Start difference. First operand 10734 states and 15180 transitions. Second operand 3 states. [2019-09-10 06:46:42,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:46:42,700 INFO L93 Difference]: Finished difference Result 15561 states and 21835 transitions. [2019-09-10 06:46:42,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:46:42,701 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2019-09-10 06:46:42,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:46:42,731 INFO L225 Difference]: With dead ends: 15561 [2019-09-10 06:46:42,731 INFO L226 Difference]: Without dead ends: 15561 [2019-09-10 06:46:42,732 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 06:46:42,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15561 states. [2019-09-10 06:46:42,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15561 to 15559. [2019-09-10 06:46:42,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15559 states. [2019-09-10 06:46:42,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15559 states to 15559 states and 21834 transitions. [2019-09-10 06:46:42,960 INFO L78 Accepts]: Start accepts. Automaton has 15559 states and 21834 transitions. Word has length 67 [2019-09-10 06:46:42,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:46:42,961 INFO L475 AbstractCegarLoop]: Abstraction has 15559 states and 21834 transitions. [2019-09-10 06:46:42,961 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 06:46:42,961 INFO L276 IsEmpty]: Start isEmpty. Operand 15559 states and 21834 transitions. [2019-09-10 06:46:42,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-10 06:46:42,965 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:46:42,965 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, 1, 1] [2019-09-10 06:46:42,965 INFO L418 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:46:42,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:46:42,966 INFO L82 PathProgramCache]: Analyzing trace with hash 1544866088, now seen corresponding path program 1 times [2019-09-10 06:46:42,966 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:46:42,967 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:42,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:46:42,968 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:42,968 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:46:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:46:43,042 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-10 06:46:43,042 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:46:43,042 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 06:46:43,043 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:46:43,043 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 06:46:43,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 06:46:43,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-09-10 06:46:43,044 INFO L87 Difference]: Start difference. First operand 15559 states and 21834 transitions. Second operand 6 states. [2019-09-10 06:46:43,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:46:43,297 INFO L93 Difference]: Finished difference Result 41939 states and 58026 transitions. [2019-09-10 06:46:43,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 06:46:43,297 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 67 [2019-09-10 06:46:43,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:46:43,366 INFO L225 Difference]: With dead ends: 41939 [2019-09-10 06:46:43,366 INFO L226 Difference]: Without dead ends: 41939 [2019-09-10 06:46:43,367 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2019-09-10 06:46:43,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41939 states. [2019-09-10 06:46:44,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41939 to 41935. [2019-09-10 06:46:44,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41935 states. [2019-09-10 06:46:44,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41935 states to 41935 states and 58024 transitions. [2019-09-10 06:46:44,153 INFO L78 Accepts]: Start accepts. Automaton has 41935 states and 58024 transitions. Word has length 67 [2019-09-10 06:46:44,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:46:44,154 INFO L475 AbstractCegarLoop]: Abstraction has 41935 states and 58024 transitions. [2019-09-10 06:46:44,154 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 06:46:44,154 INFO L276 IsEmpty]: Start isEmpty. Operand 41935 states and 58024 transitions. [2019-09-10 06:46:44,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-10 06:46:44,161 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:46:44,162 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, 1, 1] [2019-09-10 06:46:44,162 INFO L418 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:46:44,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:46:44,162 INFO L82 PathProgramCache]: Analyzing trace with hash 974449507, now seen corresponding path program 1 times [2019-09-10 06:46:44,162 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:46:44,163 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:44,164 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:46:44,164 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:46:44,164 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:46:44,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:46:44,262 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:46:44,263 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:46:44,263 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:46:44,263 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 68 with the following transitions: [2019-09-10 06:46:44,264 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [56], [77], [80], [83], [86], [91], [93], [96], [107], [109], [112], [115], [117], [120], [121], [123], [132], [143], [145], [158], [166], [185], [187], [190], [198], [201], [204], [207], [209], [211], [253], [266], [274], [293], [314], [315], [319], [320], [321] [2019-09-10 06:46:44,267 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 06:46:44,267 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 06:46:44,284 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 06:46:44,331 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 06:46:44,332 INFO L272 AbstractInterpreter]: Visited 53 different actions 92 times. Merged at 26 different actions 33 times. Never widened. Performed 380 root evaluator evaluations with a maximum evaluation depth of 5. Performed 380 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 3 fixpoints after 2 different actions. Largest state had 94 variables. [2019-09-10 06:46:44,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:46:44,332 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 06:46:44,510 INFO L227 lantSequenceWeakener]: Weakened 41 states. On average, predicates are now at 80.69% of their original sizes. [2019-09-10 06:46:44,510 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 06:46:46,455 INFO L420 sIntCurrentIteration]: We unified 66 AI predicates to 66 [2019-09-10 06:46:46,455 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 06:46:46,456 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 06:46:46,456 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [36] imperfect sequences [7] total 41 [2019-09-10 06:46:46,456 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:46:46,457 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-09-10 06:46:46,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-09-10 06:46:46,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=1096, Unknown=0, NotChecked=0, Total=1260 [2019-09-10 06:46:46,458 INFO L87 Difference]: Start difference. First operand 41935 states and 58024 transitions. Second operand 36 states. [2019-09-10 06:47:10,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:47:10,403 INFO L93 Difference]: Finished difference Result 96651 states and 131850 transitions. [2019-09-10 06:47:10,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 223 states. [2019-09-10 06:47:10,403 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 67 [2019-09-10 06:47:10,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:47:10,566 INFO L225 Difference]: With dead ends: 96651 [2019-09-10 06:47:10,567 INFO L226 Difference]: Without dead ends: 96651 [2019-09-10 06:47:10,585 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 233 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23994 ImplicationChecksByTransitivity, 8.1s TimeCoverageRelationStatistics Valid=7261, Invalid=47729, Unknown=0, NotChecked=0, Total=54990 [2019-09-10 06:47:10,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96651 states. [2019-09-10 06:47:12,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96651 to 53140. [2019-09-10 06:47:12,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53140 states. [2019-09-10 06:47:12,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53140 states to 53140 states and 73048 transitions. [2019-09-10 06:47:12,726 INFO L78 Accepts]: Start accepts. Automaton has 53140 states and 73048 transitions. Word has length 67 [2019-09-10 06:47:12,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:47:12,726 INFO L475 AbstractCegarLoop]: Abstraction has 53140 states and 73048 transitions. [2019-09-10 06:47:12,726 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-09-10 06:47:12,726 INFO L276 IsEmpty]: Start isEmpty. Operand 53140 states and 73048 transitions. [2019-09-10 06:47:12,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-10 06:47:12,735 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:47:12,735 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, 1, 1] [2019-09-10 06:47:12,736 INFO L418 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:47:12,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:47:12,736 INFO L82 PathProgramCache]: Analyzing trace with hash 742408735, now seen corresponding path program 1 times [2019-09-10 06:47:12,737 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:47:12,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:47:12,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:47:12,738 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:47:12,738 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:47:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:47:12,782 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:47:12,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:47:12,783 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:47:12,783 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:47:12,783 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:47:12,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:47:12,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:47:12,784 INFO L87 Difference]: Start difference. First operand 53140 states and 73048 transitions. Second operand 3 states. [2019-09-10 06:47:12,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:47:12,944 INFO L93 Difference]: Finished difference Result 64158 states and 86766 transitions. [2019-09-10 06:47:12,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:47:12,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2019-09-10 06:47:12,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:47:13,032 INFO L225 Difference]: With dead ends: 64158 [2019-09-10 06:47:13,032 INFO L226 Difference]: Without dead ends: 64158 [2019-09-10 06:47:13,033 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 06:47:13,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64158 states. [2019-09-10 06:47:13,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64158 to 63752. [2019-09-10 06:47:13,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63752 states. [2019-09-10 06:47:13,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63752 states to 63752 states and 86361 transitions. [2019-09-10 06:47:13,979 INFO L78 Accepts]: Start accepts. Automaton has 63752 states and 86361 transitions. Word has length 67 [2019-09-10 06:47:13,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:47:13,979 INFO L475 AbstractCegarLoop]: Abstraction has 63752 states and 86361 transitions. [2019-09-10 06:47:13,980 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 06:47:13,980 INFO L276 IsEmpty]: Start isEmpty. Operand 63752 states and 86361 transitions. [2019-09-10 06:47:13,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-10 06:47:13,987 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:47:13,987 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, 1, 1] [2019-09-10 06:47:13,987 INFO L418 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:47:13,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:47:13,987 INFO L82 PathProgramCache]: Analyzing trace with hash 255572904, now seen corresponding path program 1 times [2019-09-10 06:47:13,988 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:47:13,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:47:13,989 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:47:13,989 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:47:13,989 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:47:14,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:47:14,078 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 06:47:14,079 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:47:14,079 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:47:14,079 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 68 with the following transitions: [2019-09-10 06:47:14,080 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [56], [77], [80], [91], [93], [96], [99], [102], [107], [109], [112], [115], [117], [120], [121], [123], [132], [134], [137], [145], [148], [151], [154], [156], [158], [196], [198], [211], [219], [238], [253], [266], [274], [293], [314], [315], [319], [320], [321] [2019-09-10 06:47:14,086 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 06:47:14,087 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 06:47:14,096 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 06:47:14,139 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 06:47:14,140 INFO L272 AbstractInterpreter]: Visited 53 different actions 110 times. Merged at 26 different actions 49 times. Never widened. Performed 412 root evaluator evaluations with a maximum evaluation depth of 5. Performed 412 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 3 fixpoints after 2 different actions. Largest state had 94 variables. [2019-09-10 06:47:14,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:47:14,140 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 06:47:14,215 INFO L227 lantSequenceWeakener]: Weakened 41 states. On average, predicates are now at 80.9% of their original sizes. [2019-09-10 06:47:14,215 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 06:47:15,865 INFO L420 sIntCurrentIteration]: We unified 66 AI predicates to 66 [2019-09-10 06:47:15,866 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 06:47:15,866 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 06:47:15,866 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [36] imperfect sequences [7] total 41 [2019-09-10 06:47:15,866 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:47:15,866 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-09-10 06:47:15,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-09-10 06:47:15,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=166, Invalid=1094, Unknown=0, NotChecked=0, Total=1260 [2019-09-10 06:47:15,867 INFO L87 Difference]: Start difference. First operand 63752 states and 86361 transitions. Second operand 36 states. [2019-09-10 06:47:37,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:47:37,421 INFO L93 Difference]: Finished difference Result 126294 states and 169265 transitions. [2019-09-10 06:47:37,421 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2019-09-10 06:47:37,421 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 67 [2019-09-10 06:47:37,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:47:37,571 INFO L225 Difference]: With dead ends: 126294 [2019-09-10 06:47:37,571 INFO L226 Difference]: Without dead ends: 126294 [2019-09-10 06:47:37,576 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17484 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=5391, Invalid=36021, Unknown=0, NotChecked=0, Total=41412 [2019-09-10 06:47:37,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126294 states. [2019-09-10 06:47:38,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126294 to 71057. [2019-09-10 06:47:38,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71057 states. [2019-09-10 06:47:38,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71057 states to 71057 states and 95735 transitions. [2019-09-10 06:47:38,505 INFO L78 Accepts]: Start accepts. Automaton has 71057 states and 95735 transitions. Word has length 67 [2019-09-10 06:47:38,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:47:38,505 INFO L475 AbstractCegarLoop]: Abstraction has 71057 states and 95735 transitions. [2019-09-10 06:47:38,505 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-09-10 06:47:38,505 INFO L276 IsEmpty]: Start isEmpty. Operand 71057 states and 95735 transitions. [2019-09-10 06:47:38,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-10 06:47:38,512 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:47:38,513 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 06:47:38,513 INFO L418 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:47:38,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:47:38,513 INFO L82 PathProgramCache]: Analyzing trace with hash 479308742, now seen corresponding path program 1 times [2019-09-10 06:47:38,513 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:47:38,514 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:47:38,515 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:47:38,515 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:47:38,515 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:47:38,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:47:38,564 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:47:38,564 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:47:38,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:47:38,565 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:47:38,565 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:47:38,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:47:38,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:47:38,566 INFO L87 Difference]: Start difference. First operand 71057 states and 95735 transitions. Second operand 3 states. [2019-09-10 06:47:38,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:47:38,714 INFO L93 Difference]: Finished difference Result 62352 states and 82794 transitions. [2019-09-10 06:47:38,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:47:38,715 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-09-10 06:47:38,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:47:38,782 INFO L225 Difference]: With dead ends: 62352 [2019-09-10 06:47:38,782 INFO L226 Difference]: Without dead ends: 62352 [2019-09-10 06:47:38,785 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 06:47:38,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62352 states. [2019-09-10 06:47:39,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62352 to 54802. [2019-09-10 06:47:39,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54802 states. [2019-09-10 06:47:39,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54802 states to 54802 states and 72625 transitions. [2019-09-10 06:47:39,680 INFO L78 Accepts]: Start accepts. Automaton has 54802 states and 72625 transitions. Word has length 68 [2019-09-10 06:47:39,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:47:39,680 INFO L475 AbstractCegarLoop]: Abstraction has 54802 states and 72625 transitions. [2019-09-10 06:47:39,680 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 06:47:39,680 INFO L276 IsEmpty]: Start isEmpty. Operand 54802 states and 72625 transitions. [2019-09-10 06:47:39,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-10 06:47:39,687 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:47:39,687 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 06:47:39,687 INFO L418 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:47:39,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:47:39,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1485977938, now seen corresponding path program 1 times [2019-09-10 06:47:39,688 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:47:39,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:47:39,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:47:39,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:47:39,689 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:47:39,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:47:39,730 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:47:39,730 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:47:39,730 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:47:39,730 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:47:39,731 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:47:39,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:47:39,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:47:39,731 INFO L87 Difference]: Start difference. First operand 54802 states and 72625 transitions. Second operand 3 states. [2019-09-10 06:47:39,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:47:39,860 INFO L93 Difference]: Finished difference Result 59309 states and 76967 transitions. [2019-09-10 06:47:39,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:47:39,861 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-09-10 06:47:39,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:47:39,950 INFO L225 Difference]: With dead ends: 59309 [2019-09-10 06:47:39,951 INFO L226 Difference]: Without dead ends: 53742 [2019-09-10 06:47:39,951 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 06:47:39,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53742 states. [2019-09-10 06:47:40,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53742 to 51912. [2019-09-10 06:47:40,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51912 states. [2019-09-10 06:47:40,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51912 states to 51912 states and 67860 transitions. [2019-09-10 06:47:40,411 INFO L78 Accepts]: Start accepts. Automaton has 51912 states and 67860 transitions. Word has length 68 [2019-09-10 06:47:40,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:47:40,411 INFO L475 AbstractCegarLoop]: Abstraction has 51912 states and 67860 transitions. [2019-09-10 06:47:40,411 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 06:47:40,411 INFO L276 IsEmpty]: Start isEmpty. Operand 51912 states and 67860 transitions. [2019-09-10 06:47:40,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-10 06:47:40,416 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:47:40,416 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 06:47:40,416 INFO L418 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:47:40,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:47:40,417 INFO L82 PathProgramCache]: Analyzing trace with hash -429505741, now seen corresponding path program 1 times [2019-09-10 06:47:40,417 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:47:40,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:47:40,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:47:40,418 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:47:40,419 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:47:40,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:47:40,491 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:47:40,491 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:47:40,492 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:47:40,492 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 70 with the following transitions: [2019-09-10 06:47:40,493 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [56], [59], [64], [67], [70], [75], [77], [80], [83], [91], [93], [96], [107], [109], [112], [115], [117], [120], [121], [123], [132], [143], [145], [158], [166], [185], [194], [198], [211], [219], [238], [240], [243], [251], [253], [256], [259], [262], [264], [266], [314], [315], [319], [320], [321] [2019-09-10 06:47:40,496 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 06:47:40,496 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 06:47:40,505 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 06:47:40,571 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 06:47:40,572 INFO L272 AbstractInterpreter]: Visited 59 different actions 156 times. Merged at 32 different actions 82 times. Never widened. Performed 568 root evaluator evaluations with a maximum evaluation depth of 5. Performed 568 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 7 fixpoints after 6 different actions. Largest state had 94 variables. [2019-09-10 06:47:40,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:47:40,572 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 06:47:40,656 INFO L227 lantSequenceWeakener]: Weakened 43 states. On average, predicates are now at 81.76% of their original sizes. [2019-09-10 06:47:40,656 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 06:47:41,964 INFO L420 sIntCurrentIteration]: We unified 68 AI predicates to 68 [2019-09-10 06:47:41,964 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 06:47:41,965 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 06:47:41,965 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [40] imperfect sequences [7] total 45 [2019-09-10 06:47:41,965 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:47:41,965 INFO L454 AbstractCegarLoop]: Interpolant automaton has 40 states [2019-09-10 06:47:41,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2019-09-10 06:47:41,966 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1375, Unknown=0, NotChecked=0, Total=1560 [2019-09-10 06:47:41,966 INFO L87 Difference]: Start difference. First operand 51912 states and 67860 transitions. Second operand 40 states. [2019-09-10 06:48:18,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:48:18,524 INFO L93 Difference]: Finished difference Result 99480 states and 128285 transitions. [2019-09-10 06:48:18,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2019-09-10 06:48:18,524 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 69 [2019-09-10 06:48:18,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:48:18,626 INFO L225 Difference]: With dead ends: 99480 [2019-09-10 06:48:18,626 INFO L226 Difference]: Without dead ends: 99480 [2019-09-10 06:48:18,634 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 405 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 375 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63985 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=16595, Invalid=125157, Unknown=0, NotChecked=0, Total=141752 [2019-09-10 06:48:18,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99480 states. [2019-09-10 06:48:19,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99480 to 56598. [2019-09-10 06:48:19,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56598 states. [2019-09-10 06:48:19,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56598 states to 56598 states and 73385 transitions. [2019-09-10 06:48:19,222 INFO L78 Accepts]: Start accepts. Automaton has 56598 states and 73385 transitions. Word has length 69 [2019-09-10 06:48:19,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:48:19,222 INFO L475 AbstractCegarLoop]: Abstraction has 56598 states and 73385 transitions. [2019-09-10 06:48:19,222 INFO L476 AbstractCegarLoop]: Interpolant automaton has 40 states. [2019-09-10 06:48:19,222 INFO L276 IsEmpty]: Start isEmpty. Operand 56598 states and 73385 transitions. [2019-09-10 06:48:19,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-10 06:48:19,226 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:48:19,226 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, 1, 1, 1, 1] [2019-09-10 06:48:19,226 INFO L418 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:48:19,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:48:19,227 INFO L82 PathProgramCache]: Analyzing trace with hash 410063985, now seen corresponding path program 1 times [2019-09-10 06:48:19,227 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:48:19,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:48:19,228 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:48:19,228 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:48:19,228 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:48:19,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:48:19,300 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:48:19,301 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:48:19,301 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:48:19,301 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 70 with the following transitions: [2019-09-10 06:48:19,301 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [56], [77], [80], [83], [86], [91], [93], [96], [107], [109], [112], [115], [117], [120], [121], [123], [132], [143], [145], [148], [151], [154], [156], [158], [187], [190], [198], [201], [204], [207], [209], [211], [253], [266], [274], [293], [314], [315], [319], [320], [321] [2019-09-10 06:48:19,303 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 06:48:19,303 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 06:48:19,311 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 06:48:19,342 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 06:48:19,343 INFO L272 AbstractInterpreter]: Visited 55 different actions 122 times. Merged at 28 different actions 59 times. Never widened. Performed 481 root evaluator evaluations with a maximum evaluation depth of 5. Performed 481 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 4 fixpoints after 2 different actions. Largest state had 95 variables. [2019-09-10 06:48:19,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:48:19,343 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 06:48:19,416 INFO L227 lantSequenceWeakener]: Weakened 43 states. On average, predicates are now at 81.3% of their original sizes. [2019-09-10 06:48:19,416 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 06:48:20,549 INFO L420 sIntCurrentIteration]: We unified 68 AI predicates to 68 [2019-09-10 06:48:20,550 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 06:48:20,550 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 06:48:20,550 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [38] imperfect sequences [7] total 43 [2019-09-10 06:48:20,550 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:48:20,551 INFO L454 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-09-10 06:48:20,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-09-10 06:48:20,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1229, Unknown=0, NotChecked=0, Total=1406 [2019-09-10 06:48:20,552 INFO L87 Difference]: Start difference. First operand 56598 states and 73385 transitions. Second operand 38 states. [2019-09-10 06:48:47,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:48:47,887 INFO L93 Difference]: Finished difference Result 113090 states and 145582 transitions. [2019-09-10 06:48:47,888 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 251 states. [2019-09-10 06:48:47,888 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 69 [2019-09-10 06:48:47,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:48:47,999 INFO L225 Difference]: With dead ends: 113090 [2019-09-10 06:48:47,999 INFO L226 Difference]: Without dead ends: 113090 [2019-09-10 06:48:48,002 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 263 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30536 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=8986, Invalid=60974, Unknown=0, NotChecked=0, Total=69960 [2019-09-10 06:48:48,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113090 states. [2019-09-10 06:48:48,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113090 to 61115. [2019-09-10 06:48:48,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61115 states. [2019-09-10 06:48:48,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61115 states to 61115 states and 79138 transitions. [2019-09-10 06:48:48,684 INFO L78 Accepts]: Start accepts. Automaton has 61115 states and 79138 transitions. Word has length 69 [2019-09-10 06:48:48,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:48:48,684 INFO L475 AbstractCegarLoop]: Abstraction has 61115 states and 79138 transitions. [2019-09-10 06:48:48,685 INFO L476 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-09-10 06:48:48,685 INFO L276 IsEmpty]: Start isEmpty. Operand 61115 states and 79138 transitions. [2019-09-10 06:48:48,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-10 06:48:48,690 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:48:48,690 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:48:48,691 INFO L418 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:48:48,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:48:48,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1762268375, now seen corresponding path program 1 times [2019-09-10 06:48:48,691 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:48:48,692 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:48:48,692 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:48:48,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:48:48,693 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:48:48,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:48:48,747 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 06:48:48,747 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:48:48,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 06:48:48,747 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:48:48,748 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 06:48:48,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 06:48:48,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-10 06:48:48,748 INFO L87 Difference]: Start difference. First operand 61115 states and 79138 transitions. Second operand 5 states. [2019-09-10 06:48:48,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:48:48,985 INFO L93 Difference]: Finished difference Result 79012 states and 102875 transitions. [2019-09-10 06:48:48,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 06:48:48,986 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2019-09-10 06:48:48,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:48:49,074 INFO L225 Difference]: With dead ends: 79012 [2019-09-10 06:48:49,075 INFO L226 Difference]: Without dead ends: 78997 [2019-09-10 06:48:49,075 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 06:48:49,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78997 states. [2019-09-10 06:48:49,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78997 to 74422. [2019-09-10 06:48:49,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74422 states. [2019-09-10 06:48:49,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74422 states to 74422 states and 96571 transitions. [2019-09-10 06:48:49,715 INFO L78 Accepts]: Start accepts. Automaton has 74422 states and 96571 transitions. Word has length 70 [2019-09-10 06:48:49,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:48:49,716 INFO L475 AbstractCegarLoop]: Abstraction has 74422 states and 96571 transitions. [2019-09-10 06:48:49,716 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 06:48:49,716 INFO L276 IsEmpty]: Start isEmpty. Operand 74422 states and 96571 transitions. [2019-09-10 06:48:49,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-10 06:48:49,720 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:48:49,720 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:48:49,721 INFO L418 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:48:49,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:48:49,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1404077468, now seen corresponding path program 1 times [2019-09-10 06:48:49,721 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:48:49,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:48:49,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:48:49,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:48:49,722 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:48:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:48:49,765 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-10 06:48:49,766 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:48:49,766 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:48:49,766 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:48:49,766 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:48:49,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:48:49,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:48:49,767 INFO L87 Difference]: Start difference. First operand 74422 states and 96571 transitions. Second operand 3 states. [2019-09-10 06:48:50,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:48:50,310 INFO L93 Difference]: Finished difference Result 62051 states and 80687 transitions. [2019-09-10 06:48:50,310 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:48:50,310 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2019-09-10 06:48:50,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:48:50,389 INFO L225 Difference]: With dead ends: 62051 [2019-09-10 06:48:50,389 INFO L226 Difference]: Without dead ends: 62051 [2019-09-10 06:48:50,390 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 06:48:50,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62051 states. [2019-09-10 06:48:50,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62051 to 61908. [2019-09-10 06:48:50,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61908 states. [2019-09-10 06:48:51,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61908 states to 61908 states and 80529 transitions. [2019-09-10 06:48:51,012 INFO L78 Accepts]: Start accepts. Automaton has 61908 states and 80529 transitions. Word has length 70 [2019-09-10 06:48:51,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:48:51,013 INFO L475 AbstractCegarLoop]: Abstraction has 61908 states and 80529 transitions. [2019-09-10 06:48:51,013 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 06:48:51,013 INFO L276 IsEmpty]: Start isEmpty. Operand 61908 states and 80529 transitions. [2019-09-10 06:48:51,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-10 06:48:51,015 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:48:51,016 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:48:51,016 INFO L418 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:48:51,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:48:51,016 INFO L82 PathProgramCache]: Analyzing trace with hash -1802059936, now seen corresponding path program 1 times [2019-09-10 06:48:51,016 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:48:51,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:48:51,017 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:48:51,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:48:51,018 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:48:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:48:51,079 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-10 06:48:51,079 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:48:51,080 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 06:48:51,080 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:48:51,080 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 06:48:51,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 06:48:51,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-10 06:48:51,083 INFO L87 Difference]: Start difference. First operand 61908 states and 80529 transitions. Second operand 5 states. [2019-09-10 06:48:51,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:48:51,314 INFO L93 Difference]: Finished difference Result 76424 states and 99940 transitions. [2019-09-10 06:48:51,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 06:48:51,314 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 70 [2019-09-10 06:48:51,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:48:51,415 INFO L225 Difference]: With dead ends: 76424 [2019-09-10 06:48:51,415 INFO L226 Difference]: Without dead ends: 76424 [2019-09-10 06:48:51,418 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 06:48:51,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76424 states. [2019-09-10 06:48:52,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76424 to 71849. [2019-09-10 06:48:52,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71849 states. [2019-09-10 06:48:52,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71849 states to 71849 states and 93698 transitions. [2019-09-10 06:48:52,369 INFO L78 Accepts]: Start accepts. Automaton has 71849 states and 93698 transitions. Word has length 70 [2019-09-10 06:48:52,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:48:52,369 INFO L475 AbstractCegarLoop]: Abstraction has 71849 states and 93698 transitions. [2019-09-10 06:48:52,369 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 06:48:52,369 INFO L276 IsEmpty]: Start isEmpty. Operand 71849 states and 93698 transitions. [2019-09-10 06:48:52,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-09-10 06:48:52,374 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:48:52,374 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:48:52,374 INFO L418 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:48:52,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:48:52,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1700738555, now seen corresponding path program 1 times [2019-09-10 06:48:52,375 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:48:52,377 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:48:52,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:48:52,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:48:52,378 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:48:52,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:48:52,429 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:48:52,429 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:48:52,429 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:48:52,429 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:48:52,430 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:48:52,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:48:52,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:48:52,432 INFO L87 Difference]: Start difference. First operand 71849 states and 93698 transitions. Second operand 3 states. [2019-09-10 06:48:52,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:48:52,589 INFO L93 Difference]: Finished difference Result 62543 states and 80588 transitions. [2019-09-10 06:48:52,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:48:52,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 71 [2019-09-10 06:48:52,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:48:52,659 INFO L225 Difference]: With dead ends: 62543 [2019-09-10 06:48:52,659 INFO L226 Difference]: Without dead ends: 62543 [2019-09-10 06:48:52,663 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 06:48:52,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62543 states. [2019-09-10 06:48:53,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62543 to 62423. [2019-09-10 06:48:53,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62423 states. [2019-09-10 06:48:53,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62423 states to 62423 states and 80459 transitions. [2019-09-10 06:48:53,132 INFO L78 Accepts]: Start accepts. Automaton has 62423 states and 80459 transitions. Word has length 71 [2019-09-10 06:48:53,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:48:53,132 INFO L475 AbstractCegarLoop]: Abstraction has 62423 states and 80459 transitions. [2019-09-10 06:48:53,132 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 06:48:53,132 INFO L276 IsEmpty]: Start isEmpty. Operand 62423 states and 80459 transitions. [2019-09-10 06:48:53,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-09-10 06:48:53,135 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:48:53,135 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:48:53,135 INFO L418 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:48:53,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:48:53,136 INFO L82 PathProgramCache]: Analyzing trace with hash -1353621055, now seen corresponding path program 1 times [2019-09-10 06:48:53,136 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:48:53,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:48:53,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:48:53,136 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:48:53,137 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:48:53,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:48:53,189 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 06:48:53,189 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:48:53,189 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 06:48:53,189 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:48:53,190 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 06:48:53,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 06:48:53,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-10 06:48:53,190 INFO L87 Difference]: Start difference. First operand 62423 states and 80459 transitions. Second operand 5 states. [2019-09-10 06:48:53,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:48:53,417 INFO L93 Difference]: Finished difference Result 70483 states and 91038 transitions. [2019-09-10 06:48:53,417 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 06:48:53,418 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 71 [2019-09-10 06:48:53,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:48:53,495 INFO L225 Difference]: With dead ends: 70483 [2019-09-10 06:48:53,495 INFO L226 Difference]: Without dead ends: 70483 [2019-09-10 06:48:53,495 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 06:48:53,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70483 states. [2019-09-10 06:48:54,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70483 to 68609. [2019-09-10 06:48:54,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68609 states. [2019-09-10 06:48:54,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68609 states to 68609 states and 88507 transitions. [2019-09-10 06:48:54,611 INFO L78 Accepts]: Start accepts. Automaton has 68609 states and 88507 transitions. Word has length 71 [2019-09-10 06:48:54,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:48:54,611 INFO L475 AbstractCegarLoop]: Abstraction has 68609 states and 88507 transitions. [2019-09-10 06:48:54,611 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 06:48:54,611 INFO L276 IsEmpty]: Start isEmpty. Operand 68609 states and 88507 transitions. [2019-09-10 06:48:54,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-09-10 06:48:54,615 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:48:54,615 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:48:54,615 INFO L418 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:48:54,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:48:54,615 INFO L82 PathProgramCache]: Analyzing trace with hash -845481156, now seen corresponding path program 1 times [2019-09-10 06:48:54,615 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:48:54,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:48:54,616 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:48:54,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:48:54,616 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:48:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:48:54,675 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:48:54,675 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:48:54,675 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:48:54,676 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 74 with the following transitions: [2019-09-10 06:48:54,676 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [56], [59], [64], [67], [70], [75], [77], [80], [83], [86], [91], [93], [96], [107], [109], [112], [115], [117], [120], [121], [123], [132], [143], [145], [158], [166], [185], [187], [190], [198], [201], [204], [207], [209], [211], [240], [243], [251], [253], [256], [259], [262], [264], [266], [314], [315], [319], [320], [321] [2019-09-10 06:48:54,678 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 06:48:54,678 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 06:48:54,686 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 06:48:54,735 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 06:48:54,735 INFO L272 AbstractInterpreter]: Visited 63 different actions 176 times. Merged at 35 different actions 98 times. Never widened. Performed 611 root evaluator evaluations with a maximum evaluation depth of 5. Performed 611 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 8 fixpoints after 6 different actions. Largest state had 95 variables. [2019-09-10 06:48:54,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:48:54,735 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 06:48:54,804 INFO L227 lantSequenceWeakener]: Weakened 47 states. On average, predicates are now at 81.48% of their original sizes. [2019-09-10 06:48:54,805 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 06:48:56,335 INFO L420 sIntCurrentIteration]: We unified 72 AI predicates to 72 [2019-09-10 06:48:56,335 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 06:48:56,335 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 06:48:56,335 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [42] imperfect sequences [7] total 47 [2019-09-10 06:48:56,335 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:48:56,336 INFO L454 AbstractCegarLoop]: Interpolant automaton has 42 states [2019-09-10 06:48:56,336 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2019-09-10 06:48:56,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=1536, Unknown=0, NotChecked=0, Total=1722 [2019-09-10 06:48:56,337 INFO L87 Difference]: Start difference. First operand 68609 states and 88507 transitions. Second operand 42 states. [2019-09-10 06:50:01,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:50:01,270 INFO L93 Difference]: Finished difference Result 148157 states and 189364 transitions. [2019-09-10 06:50:01,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 447 states. [2019-09-10 06:50:01,270 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 73 [2019-09-10 06:50:01,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:50:01,421 INFO L225 Difference]: With dead ends: 148157 [2019-09-10 06:50:01,421 INFO L226 Difference]: Without dead ends: 148157 [2019-09-10 06:50:01,432 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 494 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 462 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98705 ImplicationChecksByTransitivity, 24.0s TimeCoverageRelationStatistics Valid=20893, Invalid=193939, Unknown=0, NotChecked=0, Total=214832 [2019-09-10 06:50:01,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148157 states. [2019-09-10 06:50:02,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148157 to 83667. [2019-09-10 06:50:02,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83667 states. [2019-09-10 06:50:02,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83667 states to 83667 states and 107540 transitions. [2019-09-10 06:50:02,366 INFO L78 Accepts]: Start accepts. Automaton has 83667 states and 107540 transitions. Word has length 73 [2019-09-10 06:50:02,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:50:02,366 INFO L475 AbstractCegarLoop]: Abstraction has 83667 states and 107540 transitions. [2019-09-10 06:50:02,366 INFO L476 AbstractCegarLoop]: Interpolant automaton has 42 states. [2019-09-10 06:50:02,366 INFO L276 IsEmpty]: Start isEmpty. Operand 83667 states and 107540 transitions. [2019-09-10 06:50:02,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-09-10 06:50:02,370 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:50:02,370 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:50:02,370 INFO L418 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:50:02,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:50:02,371 INFO L82 PathProgramCache]: Analyzing trace with hash 694220252, now seen corresponding path program 1 times [2019-09-10 06:50:02,371 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:50:02,371 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:50:02,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:50:02,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:50:02,372 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:50:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:50:02,436 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 06:50:02,436 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:50:02,436 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:50:02,437 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 75 with the following transitions: [2019-09-10 06:50:02,437 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [56], [59], [64], [67], [70], [75], [77], [80], [83], [91], [93], [96], [99], [102], [107], [109], [112], [115], [117], [120], [121], [123], [132], [134], [137], [145], [148], [151], [154], [156], [158], [194], [198], [211], [219], [238], [240], [243], [251], [253], [256], [259], [262], [264], [266], [314], [315], [319], [320], [321] [2019-09-10 06:50:02,439 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 06:50:02,439 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 06:50:02,447 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 06:50:02,504 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 06:50:02,504 INFO L272 AbstractInterpreter]: Visited 64 different actions 193 times. Merged at 37 different actions 113 times. Never widened. Performed 644 root evaluator evaluations with a maximum evaluation depth of 5. Performed 644 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 8 fixpoints after 4 different actions. Largest state had 95 variables. [2019-09-10 06:50:02,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:50:02,504 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 06:50:02,949 INFO L227 lantSequenceWeakener]: Weakened 48 states. On average, predicates are now at 81.48% of their original sizes. [2019-09-10 06:50:02,949 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 06:50:04,322 INFO L420 sIntCurrentIteration]: We unified 73 AI predicates to 73 [2019-09-10 06:50:04,323 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 06:50:04,323 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 06:50:04,323 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [41] imperfect sequences [7] total 46 [2019-09-10 06:50:04,323 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:50:04,324 INFO L454 AbstractCegarLoop]: Interpolant automaton has 41 states [2019-09-10 06:50:04,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2019-09-10 06:50:04,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=1463, Unknown=0, NotChecked=0, Total=1640 [2019-09-10 06:50:04,324 INFO L87 Difference]: Start difference. First operand 83667 states and 107540 transitions. Second operand 41 states. [2019-09-10 06:51:09,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:51:09,856 INFO L93 Difference]: Finished difference Result 197830 states and 249801 transitions. [2019-09-10 06:51:09,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 549 states. [2019-09-10 06:51:09,857 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 74 [2019-09-10 06:51:09,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:51:10,053 INFO L225 Difference]: With dead ends: 197830 [2019-09-10 06:51:10,054 INFO L226 Difference]: Without dead ends: 197830 [2019-09-10 06:51:10,064 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 594 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 560 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149687 ImplicationChecksByTransitivity, 27.1s TimeCoverageRelationStatistics Valid=33494, Invalid=281788, Unknown=0, NotChecked=0, Total=315282 [2019-09-10 06:51:10,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197830 states. [2019-09-10 06:51:11,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197830 to 103859. [2019-09-10 06:51:11,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103859 states. [2019-09-10 06:51:11,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103859 states to 103859 states and 132437 transitions. [2019-09-10 06:51:11,377 INFO L78 Accepts]: Start accepts. Automaton has 103859 states and 132437 transitions. Word has length 74 [2019-09-10 06:51:11,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:51:11,377 INFO L475 AbstractCegarLoop]: Abstraction has 103859 states and 132437 transitions. [2019-09-10 06:51:11,378 INFO L476 AbstractCegarLoop]: Interpolant automaton has 41 states. [2019-09-10 06:51:11,378 INFO L276 IsEmpty]: Start isEmpty. Operand 103859 states and 132437 transitions. [2019-09-10 06:51:11,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-09-10 06:51:11,382 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:51:11,382 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:51:11,383 INFO L418 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:51:11,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:51:11,383 INFO L82 PathProgramCache]: Analyzing trace with hash -342138422, now seen corresponding path program 1 times [2019-09-10 06:51:11,383 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:51:11,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:51:11,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:51:11,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:51:11,384 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:51:11,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:51:11,556 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 06:51:11,557 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:51:11,557 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:51:11,557 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 76 with the following transitions: [2019-09-10 06:51:11,557 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [56], [59], [64], [67], [70], [75], [77], [80], [83], [86], [91], [93], [96], [107], [109], [112], [115], [117], [120], [121], [123], [132], [143], [145], [148], [151], [154], [156], [158], [187], [190], [198], [201], [204], [207], [209], [211], [240], [243], [251], [253], [256], [259], [262], [264], [266], [314], [315], [319], [320], [321] [2019-09-10 06:51:11,559 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 06:51:11,559 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 06:51:11,567 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 06:51:11,722 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 06:51:11,722 INFO L272 AbstractInterpreter]: Visited 70 different actions 461 times. Merged at 46 different actions 351 times. Widened at 16 different actions 54 times. Performed 1363 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1363 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 34 fixpoints after 12 different actions. Largest state had 96 variables. [2019-09-10 06:51:11,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:51:11,723 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 06:51:11,723 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:51:11,723 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 06:51:12,241 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:51:12,241 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 06:51:12,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:51:12,311 INFO L256 TraceCheckSpWp]: Trace formula consists of 521 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-10 06:51:12,316 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 06:51:12,432 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:51:13,411 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 06:51:13,411 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 06:51:13,815 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 06:51:13,820 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 06:51:13,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 28 [2019-09-10 06:51:13,821 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 06:51:13,821 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-10 06:51:13,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-10 06:51:13,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2019-09-10 06:51:13,822 INFO L87 Difference]: Start difference. First operand 103859 states and 132437 transitions. Second operand 19 states. [2019-09-10 06:51:14,416 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 06:51:14,707 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 06:51:15,009 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 06:51:15,308 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 06:51:15,712 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2019-09-10 06:51:16,079 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2019-09-10 06:51:16,475 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2019-09-10 06:51:16,872 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2019-09-10 06:51:17,404 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2019-09-10 06:51:17,814 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2019-09-10 06:51:18,172 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-09-10 06:51:18,575 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-10 06:51:18,890 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-10 06:51:19,222 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 06:51:19,576 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-10 06:51:19,964 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-10 06:51:20,289 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-10 06:51:20,553 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-10 06:51:20,914 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 06:51:21,250 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2019-09-10 06:51:21,671 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-10 06:51:21,993 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-10 06:51:22,329 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-10 06:51:22,686 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-10 06:51:23,152 WARN L188 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-10 06:51:23,501 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2019-09-10 06:51:23,883 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2019-09-10 06:51:24,388 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-10 06:51:24,789 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2019-09-10 06:51:25,109 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 06:51:25,504 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2019-09-10 06:51:25,872 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-10 06:51:26,169 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2019-09-10 06:51:26,548 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2019-09-10 06:51:26,924 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 06:51:27,332 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-10 06:51:27,820 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2019-09-10 06:51:28,262 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2019-09-10 06:51:28,570 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2019-09-10 06:51:28,912 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-10 06:51:29,260 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-10 06:51:29,642 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2019-09-10 06:51:30,047 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2019-09-10 06:51:30,544 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2019-09-10 06:51:30,920 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-10 06:51:31,325 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-10 06:51:31,760 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2019-09-10 06:51:32,135 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-10 06:51:32,548 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2019-09-10 06:51:33,338 WARN L188 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2019-09-10 06:51:33,649 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 06:51:33,959 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2019-09-10 06:51:34,656 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2019-09-10 06:51:35,023 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2019-09-10 06:51:35,539 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2019-09-10 06:51:35,970 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-09-10 06:51:36,385 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 06:51:36,834 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2019-09-10 06:51:37,229 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2019-09-10 06:51:37,696 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 06:51:38,009 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-10 06:51:38,306 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2019-09-10 06:51:38,568 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 06:51:38,807 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 06:51:38,978 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-10 06:51:39,350 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2019-09-10 06:51:39,671 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 06:51:39,999 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-09-10 06:51:40,284 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 06:51:40,707 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-10 06:51:41,040 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2019-09-10 06:51:41,362 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 06:51:41,692 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-09-10 06:51:42,118 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-10 06:51:42,441 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-09-10 06:51:42,759 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 06:51:42,959 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 06:51:43,313 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 06:51:43,562 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 06:51:43,787 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2019-09-10 06:51:44,134 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 06:51:44,477 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-10 06:51:44,723 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 06:51:44,929 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 06:51:45,266 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-10 06:51:45,636 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-09-10 06:51:45,942 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 06:51:46,283 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 06:51:46,503 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-10 06:51:46,889 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-10 06:51:47,256 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-10 06:51:47,494 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 06:51:47,687 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-10 06:51:47,974 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 06:51:48,452 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 06:51:48,883 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2019-09-10 06:51:49,191 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 06:51:49,530 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-10 06:51:49,765 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-10 06:51:50,218 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-10 06:51:50,557 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-09-10 06:51:50,766 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 06:51:51,108 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-10 06:51:51,437 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 06:51:51,682 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 06:51:52,000 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-09-10 06:51:52,411 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2019-09-10 06:51:52,732 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 06:51:53,044 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 06:51:53,420 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-10 06:51:53,641 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-09-10 06:51:54,069 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 06:51:54,511 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 06:51:55,100 WARN L188 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 06:51:55,392 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 06:51:55,761 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2019-09-10 06:51:56,033 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 06:51:56,552 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 06:51:56,774 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 06:51:57,271 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2019-09-10 06:51:57,489 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-10 06:51:57,940 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-10 06:51:58,217 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 06:51:58,470 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 06:51:58,788 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 06:51:59,057 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 06:51:59,311 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 06:51:59,652 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 06:52:00,011 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 06:52:00,339 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-10 06:52:00,935 WARN L188 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87 [2019-09-10 06:52:01,269 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 06:52:01,566 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-10 06:52:01,846 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-09-10 06:52:02,070 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 06:52:02,303 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 06:52:02,496 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-10 06:52:02,899 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2019-09-10 06:52:03,131 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 06:52:03,354 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 06:52:03,573 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 06:52:03,779 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-10 06:52:04,154 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 06:52:04,403 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-10 06:52:04,639 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 06:52:04,842 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-10 06:52:05,205 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-10 06:52:05,647 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2019-09-10 06:52:05,964 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 06:52:06,206 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 06:52:06,487 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 06:52:06,710 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-10 06:52:07,058 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-09-10 06:52:07,323 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 06:52:07,543 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-10 06:52:07,897 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 06:52:08,311 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-10 06:52:08,638 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 06:52:08,877 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 06:52:09,213 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-09-10 06:52:09,459 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 06:52:09,709 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 06:52:09,909 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 06:52:10,376 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-10 06:52:10,723 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-10 06:52:11,114 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-10 06:52:11,476 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-09-10 06:52:11,871 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-10 06:52:12,224 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2019-09-10 06:52:12,630 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 06:52:12,970 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 06:52:13,447 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-10 06:52:13,775 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 06:52:13,987 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 06:52:14,350 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 06:52:14,776 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 06:52:14,999 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-09-10 06:52:15,258 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-09-10 06:52:15,736 WARN L188 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 06:52:15,979 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 06:52:16,212 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 06:52:16,445 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-10 06:52:16,651 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 06:52:16,943 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 06:52:17,204 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-10 06:52:17,484 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 06:52:17,782 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 06:52:18,036 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 06:52:18,296 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 06:52:18,541 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-10 06:52:18,845 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2019-09-10 06:52:19,186 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-10 06:52:19,391 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-10 06:52:19,636 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-10 06:52:19,960 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-10 06:52:20,182 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-09-10 06:52:20,620 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 06:52:20,968 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-10 06:52:21,280 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-10 06:52:21,565 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 06:52:22,047 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-10 06:52:22,301 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2019-09-10 06:52:22,561 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2019-09-10 06:52:22,850 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2019-09-10 06:52:23,073 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 06:52:23,324 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2019-09-10 06:52:23,550 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-10 06:52:23,810 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2019-09-10 06:52:24,043 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 06:52:24,242 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 06:52:24,443 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 06:52:24,691 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2019-09-10 06:52:25,481 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 06:52:25,792 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-10 06:52:26,079 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2019-09-10 06:52:26,310 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-10 06:52:26,527 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-10 06:52:26,740 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-10 06:52:26,950 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-10 06:52:27,267 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2019-09-10 06:52:27,622 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2019-09-10 06:52:27,907 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 06:52:28,153 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2019-09-10 06:52:28,436 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 06:52:28,730 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-10 06:52:29,014 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 06:52:29,394 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-10 06:52:29,582 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 06:52:29,739 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-10 06:52:29,927 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 06:52:30,304 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-10 06:52:30,555 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-09-10 06:52:30,722 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2019-09-10 06:52:31,154 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-10 06:52:31,364 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 06:52:31,680 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-10 06:52:31,927 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-10 06:52:32,082 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-10 06:52:32,314 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 06:52:32,585 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 06:52:32,838 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 06:52:33,019 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 06:52:33,189 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 06:52:33,368 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-10 06:52:33,537 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-10 06:52:33,965 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2019-09-10 06:52:34,253 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 06:52:34,536 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 06:52:35,067 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-10 06:52:35,584 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 06:52:35,824 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-10 06:52:36,037 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-10 06:52:36,394 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2019-09-10 06:52:36,656 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-09-10 06:52:36,877 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 06:52:37,118 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 06:52:37,331 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 06:52:37,986 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2019-09-10 06:52:38,233 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-09-10 06:52:38,387 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-10 06:52:38,621 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2019-09-10 06:52:38,922 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-10 06:52:39,187 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 06:52:39,450 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-10 06:52:39,661 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-10 06:52:39,898 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-10 06:52:40,071 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 06:52:40,308 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 06:52:40,614 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 06:52:40,858 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 06:52:41,089 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 06:52:41,288 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-10 06:52:41,712 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 06:52:41,909 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-10 06:52:42,230 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 06:52:42,510 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-10 06:52:42,689 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-09-10 06:52:42,905 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 06:52:43,123 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-10 06:52:43,441 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-09-10 06:52:43,724 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 06:52:44,001 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 06:52:44,364 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2019-09-10 06:52:44,614 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 06:52:45,149 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 06:52:45,516 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 06:52:45,754 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-09-10 06:52:45,936 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 06:52:46,204 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-10 06:52:46,463 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-09-10 06:52:46,704 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-09-10 06:52:46,885 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-10 06:52:47,117 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-10 06:52:47,326 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-09-10 06:52:47,587 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 06:52:47,832 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 06:52:48,053 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-10 06:52:48,290 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-10 06:52:48,519 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-09-10 06:52:48,743 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-09-10 06:52:49,087 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2019-09-10 06:52:49,323 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 06:52:49,663 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 06:52:50,006 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 06:52:50,321 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-10 06:52:50,552 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-10 06:52:50,779 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-10 06:52:51,178 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 06:52:51,330 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-10 06:52:51,598 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2019-09-10 06:52:51,829 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 06:52:52,228 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 06:52:52,533 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-09-10 06:52:52,786 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 06:52:53,069 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 06:52:53,293 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 06:52:53,531 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-09-10 06:52:54,075 WARN L188 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 06:52:54,308 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2019-09-10 06:52:54,560 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 06:52:54,809 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 06:52:55,051 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 06:52:55,324 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2019-09-10 06:52:55,551 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 06:52:55,809 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 06:52:56,187 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-09-10 06:52:56,417 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2019-09-10 06:52:56,594 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-09-10 06:52:56,812 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-10 06:52:57,027 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-10 06:52:57,408 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 06:52:57,654 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 06:52:57,882 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 06:52:58,057 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 06:52:58,308 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 06:52:58,548 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-10 06:52:58,742 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-10 06:52:58,968 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-10 06:52:59,209 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2019-09-10 06:52:59,582 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-10 06:52:59,900 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 06:53:00,165 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 06:53:00,415 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 06:53:00,682 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 06:53:00,957 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 06:53:01,215 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-09-10 06:53:01,546 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-10 06:53:01,821 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-10 06:53:02,090 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 06:53:02,256 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 06:53:02,618 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 06:53:02,902 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 06:53:03,159 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-10 06:53:03,356 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 06:53:03,790 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 06:53:03,942 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-10 06:53:04,250 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2019-09-10 06:53:04,432 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-10 06:53:04,585 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-10 06:53:04,827 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 06:53:05,257 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-10 06:53:05,837 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-10 06:53:06,080 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-10 06:53:06,256 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-10 06:53:06,583 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-10 06:53:07,076 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2019-09-10 06:53:07,344 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2019-09-10 06:53:07,652 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 06:53:07,889 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 06:53:08,435 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 06:53:08,873 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-10 06:53:09,051 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 06:53:09,304 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 06:53:09,559 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-10 06:53:09,815 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 06:53:10,068 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-10 06:53:10,282 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-10 06:53:10,477 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-10 06:53:10,668 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-10 06:53:10,861 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 06:53:11,673 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 06:53:12,110 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2019-09-10 06:53:12,727 WARN L188 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 06:53:12,981 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 06:53:13,252 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 06:53:13,514 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-10 06:53:13,768 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 06:53:14,044 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-10 06:53:14,236 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-09-10 06:53:14,394 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-10 06:53:15,091 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 06:53:15,383 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 06:53:15,809 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 06:53:16,070 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 06:53:16,369 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 06:53:16,679 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-09-10 06:53:16,926 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 06:53:17,151 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-10 06:53:17,342 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-10 06:53:17,769 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2019-09-10 06:53:18,279 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-10 06:53:18,565 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 06:53:18,857 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 06:53:19,181 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-09-10 06:53:19,404 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 06:53:19,705 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 06:53:19,964 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2019-09-10 06:53:20,466 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-09-10 06:53:20,732 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 06:53:21,023 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-09-10 06:53:21,434 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 06:53:21,684 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-10 06:53:22,041 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2019-09-10 06:53:22,324 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 06:53:22,602 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 06:53:22,903 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 06:53:23,320 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-10 06:53:23,643 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2019-09-10 06:53:24,489 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-10 06:53:24,744 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 06:53:25,015 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2019-09-10 06:53:25,311 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 06:53:25,495 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-10 06:53:26,316 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 06:53:26,584 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-10 06:53:26,782 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-09-10 06:53:26,974 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2019-09-10 06:53:27,210 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2019-09-10 06:53:27,620 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 82 [2019-09-10 06:53:28,008 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2019-09-10 06:53:28,350 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2019-09-10 06:53:28,632 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2019-09-10 06:53:29,409 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-09-10 06:53:29,811 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 06:53:30,122 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 06:53:30,361 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-10 06:53:30,713 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 06:53:31,351 WARN L188 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-09-10 06:53:31,805 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 06:53:32,062 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-10 06:53:32,270 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 06:53:32,638 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 06:53:33,033 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-09-10 06:53:33,588 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 06:53:33,857 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-10 06:53:34,091 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 06:53:34,509 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-10 06:53:34,723 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 06:53:35,296 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-10 06:53:35,594 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2019-09-10 06:53:35,844 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 06:53:36,287 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-10 06:53:36,588 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2019-09-10 06:53:36,923 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 06:53:37,235 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2019-09-10 06:53:38,256 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2019-09-10 06:53:38,427 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-09-10 06:53:39,006 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-10 06:53:39,542 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-10 06:53:39,806 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-10 06:53:40,086 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 06:53:40,632 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2019-09-10 06:53:40,818 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2019-09-10 06:53:41,158 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-10 06:53:41,483 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-10 06:53:41,678 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-09-10 06:53:41,884 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2019-09-10 06:53:42,086 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-10 06:53:42,508 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 06:53:42,817 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-10 06:53:43,062 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-10 06:53:43,361 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2019-09-10 06:53:43,577 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-10 06:53:43,781 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-09-10 06:53:44,054 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 06:53:44,362 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-10 06:53:44,595 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 06:53:44,945 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2019-09-10 06:53:45,197 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-09-10 06:53:45,465 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 06:53:45,719 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 06:53:45,965 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 06:53:46,235 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-10 06:53:46,594 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2019-09-10 06:53:46,815 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 06:53:47,061 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 06:53:47,410 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-10 06:53:47,824 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-10 06:53:48,050 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 06:53:48,365 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 06:53:48,634 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 06:53:48,995 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 06:53:49,473 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 06:53:49,726 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-10 06:53:49,968 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 06:53:50,767 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-10 06:53:51,243 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2019-09-10 06:53:51,600 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-10 06:53:51,838 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-10 06:53:52,082 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-10 06:53:52,312 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-09-10 06:53:52,546 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2019-09-10 06:53:52,836 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 06:53:54,148 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 06:53:54,389 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-10 06:53:54,671 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-10 06:53:55,020 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2019-09-10 06:53:55,276 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2019-09-10 06:53:55,469 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-10 06:53:55,656 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-10 06:53:55,970 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-09-10 06:53:56,154 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2019-09-10 06:53:56,573 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 06:53:56,808 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 06:53:57,056 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 06:53:57,325 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 06:53:57,592 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2019-09-10 06:53:57,811 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2019-09-10 06:53:58,198 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-09-10 06:53:58,609 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 06:53:58,857 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-10 06:53:59,063 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-09-10 06:53:59,455 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-09-10 06:53:59,758 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-10 06:54:00,037 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2019-09-10 06:54:00,276 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-10 06:54:00,621 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-10 06:54:00,883 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 06:54:01,228 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 06:54:01,478 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 06:54:02,050 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 06:54:02,375 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2019-09-10 06:54:02,752 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-10 06:54:03,102 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 06:54:03,700 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 06:54:04,009 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 06:54:04,443 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 06:54:04,971 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 06:54:05,448 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 06:54:06,158 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-10 06:54:06,695 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 06:54:07,627 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 06:54:07,846 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-10 06:54:08,290 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 06:54:08,539 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-10 06:54:08,914 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-10 06:54:09,266 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 06:54:09,505 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-10 06:54:09,959 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 06:54:10,293 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2019-09-10 06:54:10,685 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 06:54:11,000 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 06:54:11,630 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-10 06:54:11,985 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2019-09-10 06:54:12,240 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 06:54:12,909 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2019-09-10 06:54:13,950 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 06:54:14,194 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 06:54:14,708 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2019-09-10 06:54:19,332 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2019-09-10 06:54:19,807 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2019-09-10 06:54:20,993 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2019-09-10 06:54:24,969 WARN L188 SmtUtils]: Spent 3.64 s on a formula simplification that was a NOOP. DAG size: 25 [2019-09-10 06:54:25,270 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2019-09-10 06:54:25,605 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2019-09-10 06:54:26,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:54:26,128 INFO L93 Difference]: Finished difference Result 589671 states and 753531 transitions. [2019-09-10 06:54:26,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 714 states. [2019-09-10 06:54:26,129 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 75 [2019-09-10 06:54:26,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:54:26,791 INFO L225 Difference]: With dead ends: 589671 [2019-09-10 06:54:26,792 INFO L226 Difference]: Without dead ends: 589671 [2019-09-10 06:54:26,804 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 872 GetRequests, 119 SyntacticMatches, 15 SemanticMatches, 738 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 277003 ImplicationChecksByTransitivity, 171.4s TimeCoverageRelationStatistics Valid=53540, Invalid=493320, Unknown=0, NotChecked=0, Total=546860 [2019-09-10 06:54:27,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589671 states. [2019-09-10 06:54:30,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589671 to 173013. [2019-09-10 06:54:30,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173013 states. [2019-09-10 06:54:30,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173013 states to 173013 states and 224392 transitions. [2019-09-10 06:54:30,781 INFO L78 Accepts]: Start accepts. Automaton has 173013 states and 224392 transitions. Word has length 75 [2019-09-10 06:54:30,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:54:30,781 INFO L475 AbstractCegarLoop]: Abstraction has 173013 states and 224392 transitions. [2019-09-10 06:54:30,781 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-10 06:54:30,781 INFO L276 IsEmpty]: Start isEmpty. Operand 173013 states and 224392 transitions. [2019-09-10 06:54:30,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-09-10 06:54:30,785 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:54:30,785 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:54:30,786 INFO L418 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:54:30,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:54:30,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1032395585, now seen corresponding path program 1 times [2019-09-10 06:54:30,786 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:54:30,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:54:30,787 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:54:30,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:54:30,787 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:54:30,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:54:31,481 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 06:54:31,482 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:54:31,482 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:54:31,482 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 78 with the following transitions: [2019-09-10 06:54:31,482 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [56], [59], [64], [67], [70], [75], [77], [80], [83], [86], [89], [91], [93], [96], [99], [102], [107], [109], [112], [115], [117], [120], [121], [123], [132], [134], [137], [145], [148], [151], [154], [156], [158], [198], [201], [204], [207], [209], [211], [240], [243], [251], [253], [256], [259], [262], [264], [266], [314], [315], [319], [320], [321] [2019-09-10 06:54:31,485 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 06:54:31,485 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 06:54:31,493 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 06:54:31,690 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 06:54:31,691 INFO L272 AbstractInterpreter]: Visited 72 different actions 555 times. Merged at 48 different actions 436 times. Widened at 17 different actions 61 times. Performed 1624 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1624 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 42 fixpoints after 16 different actions. Largest state had 96 variables. [2019-09-10 06:54:31,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:54:31,691 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 06:54:31,691 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:54:31,691 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 06:54:31,709 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:54:31,709 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 06:54:31,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:54:31,784 INFO L256 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 23 conjunts are in the unsatisfiable core [2019-09-10 06:54:31,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 06:54:32,005 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:54:32,279 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 06:54:32,279 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 06:54:33,593 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 06:54:33,602 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 06:54:33,602 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 13] total 39 [2019-09-10 06:54:33,603 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 06:54:33,603 INFO L454 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-09-10 06:54:33,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-09-10 06:54:33,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1359, Unknown=0, NotChecked=0, Total=1482 [2019-09-10 06:54:33,604 INFO L87 Difference]: Start difference. First operand 173013 states and 224392 transitions. Second operand 28 states. [2019-09-10 06:54:36,521 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2019-09-10 06:54:37,990 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2019-09-10 06:54:38,510 WARN L188 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-10 06:54:38,702 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2019-09-10 06:54:38,918 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-09-10 06:54:41,125 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2019-09-10 06:54:41,797 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2019-09-10 06:54:41,994 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2019-09-10 06:54:42,208 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2019-09-10 06:54:42,487 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2019-09-10 06:54:42,733 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-10 06:54:42,908 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-10 06:54:43,054 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-09-10 06:54:43,318 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2019-09-10 06:54:43,623 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2019-09-10 06:54:43,866 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-09-10 06:54:44,054 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2019-09-10 06:54:44,359 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-10 06:54:44,607 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2019-09-10 06:54:46,438 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2019-09-10 06:54:47,332 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-10 06:54:48,488 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2019-09-10 06:54:48,684 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-10 06:54:48,941 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 50 [2019-09-10 06:54:49,155 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2019-09-10 06:54:49,721 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2019-09-10 06:54:50,688 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2019-09-10 06:54:50,893 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2019-09-10 06:54:51,073 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-09-10 06:54:51,790 WARN L188 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-10 06:54:52,096 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2019-09-10 06:54:52,297 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 40 [2019-09-10 06:54:52,693 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-10 06:54:52,868 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-10 06:54:53,100 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2019-09-10 06:54:53,333 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2019-09-10 06:54:53,531 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2019-09-10 06:54:53,892 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 51 [2019-09-10 06:54:54,101 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2019-09-10 06:54:54,986 WARN L188 SmtUtils]: Spent 821.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2019-09-10 06:54:55,350 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-10 06:54:55,736 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2019-09-10 06:54:55,910 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2019-09-10 06:54:56,091 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 40 [2019-09-10 06:54:56,441 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-09-10 06:54:56,646 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-10 06:54:56,879 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2019-09-10 06:54:57,068 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2019-09-10 06:54:57,372 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-10 06:54:57,586 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2019-09-10 06:54:57,792 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-10 06:54:58,091 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2019-09-10 06:54:58,363 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-10 06:54:58,598 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-09-10 06:54:58,851 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2019-09-10 06:54:59,028 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-09-10 06:54:59,366 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2019-09-10 06:54:59,588 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-10 06:55:00,009 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2019-09-10 06:55:00,369 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-09-10 06:55:00,644 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-10 06:55:00,831 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-09-10 06:55:01,056 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-10 06:55:01,404 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2019-09-10 06:55:01,736 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-09-10 06:55:02,071 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-10 06:55:02,399 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-10 06:55:02,609 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-10 06:55:02,936 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 47 [2019-09-10 06:55:03,247 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-10 06:55:03,437 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2019-09-10 06:55:03,978 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-09-10 06:55:04,207 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 06:55:04,393 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-10 06:55:04,651 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-10 06:55:04,927 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 51 [2019-09-10 06:55:05,156 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2019-09-10 06:55:05,365 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2019-09-10 06:55:05,741 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2019-09-10 06:55:06,266 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2019-09-10 06:55:06,652 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-09-10 06:55:06,945 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2019-09-10 06:55:07,683 WARN L188 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34 [2019-09-10 06:55:07,923 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2019-09-10 06:55:08,203 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2019-09-10 06:55:08,476 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-09-10 06:55:08,762 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2019-09-10 06:55:08,990 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2019-09-10 06:55:09,262 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2019-09-10 06:55:09,565 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2019-09-10 06:55:09,916 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2019-09-10 06:55:10,208 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2019-09-10 06:55:10,360 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2019-09-10 06:55:10,584 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 47 [2019-09-10 06:55:10,894 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2019-09-10 06:55:11,216 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2019-09-10 06:55:11,610 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 85 [2019-09-10 06:55:11,901 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2019-09-10 06:55:12,093 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-10 06:55:12,435 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2019-09-10 06:55:12,837 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 06:55:13,242 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2019-09-10 06:55:13,430 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 51 [2019-09-10 06:55:13,640 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2019-09-10 06:55:13,879 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2019-09-10 06:55:14,162 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 77 [2019-09-10 06:55:14,380 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-10 06:55:14,758 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 85 [2019-09-10 06:55:16,255 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2019-09-10 06:55:16,679 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2019-09-10 06:55:16,971 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2019-09-10 06:55:17,143 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2019-09-10 06:55:17,518 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2019-09-10 06:55:17,817 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2019-09-10 06:55:17,988 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-09-10 06:55:18,325 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 78 [2019-09-10 06:55:18,555 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 70 [2019-09-10 06:55:19,495 WARN L188 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 82 [2019-09-10 06:55:19,721 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2019-09-10 06:55:19,974 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2019-09-10 06:55:20,194 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 06:55:20,739 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2019-09-10 06:55:21,134 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2019-09-10 06:55:21,519 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 84 [2019-09-10 06:55:21,689 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 50 [2019-09-10 06:55:21,924 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2019-09-10 06:55:22,184 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2019-09-10 06:55:22,396 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 55 [2019-09-10 06:55:22,583 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2019-09-10 06:55:24,029 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2019-09-10 06:55:24,253 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2019-09-10 06:55:26,763 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-09-10 06:55:27,026 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2019-09-10 06:55:27,224 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 39 [2019-09-10 06:55:27,470 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2019-09-10 06:55:28,325 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-09-10 06:55:29,306 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-10 06:55:30,280 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2019-09-10 06:55:30,823 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 06:55:30,994 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 06:55:31,152 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-10 06:55:31,468 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2019-09-10 06:55:32,018 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2019-09-10 06:55:32,188 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2019-09-10 06:55:33,901 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2019-09-10 06:55:34,059 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2019-09-10 06:55:34,767 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 06:55:34,950 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-10 06:55:35,106 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 06:55:35,274 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-10 06:55:36,238 WARN L188 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2019-09-10 06:55:37,654 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2019-09-10 06:55:37,835 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 50 [2019-09-10 06:55:38,468 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2019-09-10 06:55:38,708 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2019-09-10 06:55:38,853 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2019-09-10 06:55:40,187 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-09-10 06:55:40,398 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2019-09-10 06:55:40,582 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2019-09-10 06:55:41,369 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2019-09-10 06:55:41,523 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-09-10 06:55:41,683 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-09-10 06:55:41,900 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2019-09-10 06:55:42,070 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2019-09-10 06:55:42,572 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-10 06:55:42,769 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-10 06:55:44,507 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2019-09-10 06:55:44,736 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2019-09-10 06:55:45,073 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2019-09-10 06:55:45,242 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2019-09-10 06:55:45,415 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2019-09-10 06:55:45,758 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-09-10 06:55:46,479 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 58 [2019-09-10 06:55:46,670 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 56 [2019-09-10 06:55:47,973 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2019-09-10 06:55:48,143 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 40 [2019-09-10 06:55:48,291 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2019-09-10 06:55:48,789 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 06:55:49,594 WARN L188 SmtUtils]: Spent 760.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-10 06:55:49,986 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2019-09-10 06:55:50,233 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2019-09-10 06:55:50,557 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2019-09-10 06:55:50,809 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2019-09-10 06:55:51,083 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2019-09-10 06:55:51,525 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2019-09-10 06:55:52,370 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2019-09-10 06:55:52,522 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2019-09-10 06:55:52,891 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-09-10 06:55:53,104 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 06:55:53,357 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-10 06:55:53,557 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2019-09-10 06:55:53,829 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2019-09-10 06:55:54,071 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2019-09-10 06:55:54,593 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-10 06:55:54,884 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2019-09-10 06:55:55,519 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2019-09-10 06:55:55,751 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2019-09-10 06:55:55,907 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2019-09-10 06:55:56,179 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2019-09-10 06:55:56,501 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2019-09-10 06:55:56,784 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2019-09-10 06:55:57,042 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2019-09-10 06:55:58,060 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2019-09-10 06:55:58,248 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-09-10 06:55:58,501 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2019-09-10 06:55:58,849 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 81 [2019-09-10 06:55:59,186 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 77 [2019-09-10 06:55:59,376 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2019-09-10 06:56:01,670 WARN L188 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 98 DAG size of output: 81 [2019-09-10 06:56:01,814 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-10 06:56:02,382 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-10 06:56:02,608 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2019-09-10 06:56:02,805 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2019-09-10 06:56:02,996 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2019-09-10 06:56:03,264 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2019-09-10 06:56:03,467 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2019-09-10 06:56:03,683 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2019-09-10 06:56:03,946 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2019-09-10 06:56:04,164 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2019-09-10 06:56:04,579 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2019-09-10 06:56:04,975 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2019-09-10 06:56:05,241 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 78 [2019-09-10 06:56:05,624 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2019-09-10 06:56:05,827 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2019-09-10 06:56:06,054 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-09-10 06:56:06,444 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2019-09-10 06:56:06,939 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2019-09-10 06:56:07,267 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2019-09-10 06:56:07,617 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-09-10 06:56:07,971 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 73 [2019-09-10 06:56:08,133 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2019-09-10 06:56:08,432 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 81 [2019-09-10 06:56:08,600 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-10 06:56:08,791 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 06:56:09,091 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-09-10 06:56:09,268 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2019-09-10 06:56:09,481 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-10 06:56:09,701 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2019-09-10 06:56:10,213 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2019-09-10 06:56:10,424 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 06:56:10,939 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2019-09-10 06:56:11,467 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-09-10 06:56:12,443 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2019-09-10 06:56:12,969 WARN L188 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2019-09-10 06:56:13,544 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2019-09-10 06:56:15,113 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-10 06:56:16,414 WARN L188 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-09-10 06:56:16,782 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-10 06:56:17,157 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2019-09-10 06:56:17,393 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2019-09-10 06:56:17,628 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-10 06:56:17,829 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-10 06:56:18,848 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-10 06:56:19,149 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-09-10 06:56:19,343 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2019-09-10 06:56:19,770 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 06:56:20,947 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2019-09-10 06:56:21,153 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2019-09-10 06:56:21,558 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-10 06:56:21,925 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-09-10 06:56:22,223 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 06:56:22,549 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2019-09-10 06:56:22,790 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2019-09-10 06:56:23,071 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2019-09-10 06:56:23,285 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-10 06:56:23,520 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2019-09-10 06:56:24,094 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2019-09-10 06:56:24,293 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2019-09-10 06:56:24,480 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-10 06:56:26,219 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 60 [2019-09-10 06:56:26,392 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-10 06:56:26,717 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2019-09-10 06:56:26,915 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-09-10 06:56:27,125 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2019-09-10 06:56:27,455 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-10 06:56:28,096 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2019-09-10 06:56:28,314 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2019-09-10 06:56:28,647 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 06:56:28,878 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 06:56:29,047 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2019-09-10 06:56:29,413 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-09-10 06:56:29,755 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2019-09-10 06:56:29,984 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 06:56:30,734 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2019-09-10 06:56:31,138 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2019-09-10 06:56:31,295 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2019-09-10 06:56:31,441 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2019-09-10 06:56:31,724 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 06:56:31,929 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-10 06:56:32,155 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 06:56:32,410 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2019-09-10 06:56:33,742 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2019-09-10 06:56:34,150 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-10 06:56:34,677 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-10 06:56:34,899 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2019-09-10 06:56:35,094 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 63 [2019-09-10 06:56:35,310 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2019-09-10 06:56:35,513 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2019-09-10 06:56:35,736 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2019-09-10 06:56:35,946 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2019-09-10 06:56:36,140 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2019-09-10 06:56:36,302 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2019-09-10 06:56:36,474 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-10 06:56:36,705 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 06:56:36,943 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2019-09-10 06:56:37,165 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-09-10 06:56:37,404 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 51 [2019-09-10 06:56:37,647 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2019-09-10 06:56:37,813 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-10 06:56:38,167 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-10 06:56:38,627 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2019-09-10 06:56:38,879 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2019-09-10 06:56:39,119 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2019-09-10 06:56:39,299 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-10 06:56:39,744 WARN L188 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2019-09-10 06:56:40,313 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2019-09-10 06:56:40,528 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2019-09-10 06:56:40,869 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2019-09-10 06:56:41,132 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 06:56:41,495 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-10 06:56:41,686 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2019-09-10 06:56:41,839 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-10 06:56:42,059 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2019-09-10 06:56:42,609 WARN L188 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-10 06:56:44,080 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 51 [2019-09-10 06:56:44,354 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 06:56:44,548 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-09-10 06:56:44,933 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2019-09-10 06:56:45,120 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2019-09-10 06:56:45,956 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2019-09-10 06:56:46,191 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2019-09-10 06:56:46,364 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2019-09-10 06:56:47,590 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-09-10 06:56:47,960 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2019-09-10 06:56:48,637 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2019-09-10 06:56:48,942 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2019-09-10 06:56:49,110 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2019-09-10 06:56:49,308 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-10 06:56:49,502 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2019-09-10 06:56:49,740 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2019-09-10 06:56:50,037 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-10 06:56:50,345 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-10 06:56:51,153 WARN L188 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-10 06:56:51,438 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2019-09-10 06:56:51,735 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2019-09-10 06:56:52,098 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2019-09-10 06:56:52,322 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 06:56:53,140 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2019-09-10 06:56:53,350 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 62 [2019-09-10 06:56:53,612 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2019-09-10 06:56:53,794 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2019-09-10 06:56:53,954 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-10 06:56:54,162 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2019-09-10 06:56:54,641 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2019-09-10 06:56:54,856 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61 [2019-09-10 06:56:55,125 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2019-09-10 06:56:55,333 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2019-09-10 06:56:55,544 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-10 06:56:55,752 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2019-09-10 06:56:56,002 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 78 [2019-09-10 06:56:56,182 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 06:56:56,407 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2019-09-10 06:56:56,690 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2019-09-10 06:56:56,986 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2019-09-10 06:56:57,239 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2019-09-10 06:56:57,427 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2019-09-10 06:56:57,603 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-09-10 06:56:57,839 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2019-09-10 06:56:58,182 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2019-09-10 06:56:59,547 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 81 [2019-09-10 06:56:59,772 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 06:56:59,933 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2019-09-10 06:57:00,113 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-10 06:57:00,312 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 06:57:00,508 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2019-09-10 06:57:00,788 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2019-09-10 06:57:01,056 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2019-09-10 06:57:01,418 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-10 06:57:02,358 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2019-09-10 06:57:02,622 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 06:57:02,983 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2019-09-10 06:57:03,246 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-10 06:57:03,408 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-09-10 06:57:04,380 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2019-09-10 06:57:04,858 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2019-09-10 06:57:05,023 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 49 [2019-09-10 06:57:05,196 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 53 [2019-09-10 06:57:05,372 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 06:57:05,694 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2019-09-10 06:57:07,045 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2019-09-10 06:57:07,266 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2019-09-10 06:57:08,237 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2019-09-10 06:57:08,599 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2019-09-10 06:57:09,009 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2019-09-10 06:57:09,231 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2019-09-10 06:57:09,652 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2019-09-10 06:57:09,879 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 06:57:10,139 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2019-09-10 06:57:10,358 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-10 06:57:10,625 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2019-09-10 06:57:10,829 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 59 [2019-09-10 06:57:11,053 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2019-09-10 06:57:11,229 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-10 06:57:11,535 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2019-09-10 06:57:12,242 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2019-09-10 06:57:12,551 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2019-09-10 06:57:12,718 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2019-09-10 06:57:12,919 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2019-09-10 06:57:13,223 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-10 06:57:13,401 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 06:57:13,614 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2019-09-10 06:57:13,911 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2019-09-10 06:57:14,174 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2019-09-10 06:57:14,324 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-10 06:57:14,791 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 06:57:15,036 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-10 06:57:15,577 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2019-09-10 06:57:15,886 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2019-09-10 06:57:16,207 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-09-10 06:57:16,804 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-09-10 06:57:17,197 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 06:57:17,507 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 06:57:17,795 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-10 06:57:17,988 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 06:57:18,164 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2019-09-10 06:57:18,348 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 06:57:18,680 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-10 06:57:19,068 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2019-09-10 06:57:19,701 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 06:57:19,903 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 06:57:20,075 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2019-09-10 06:57:20,244 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2019-09-10 06:57:20,674 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-10 06:57:21,149 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2019-09-10 06:57:21,348 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2019-09-10 06:57:21,567 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-09-10 06:57:21,765 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-10 06:57:22,032 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-10 06:57:23,090 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2019-09-10 06:57:23,558 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 06:57:24,108 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-10 06:57:25,698 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2019-09-10 06:57:26,149 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-10 06:57:26,622 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2019-09-10 06:57:27,430 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-09-10 06:57:27,699 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-10 06:57:28,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:57:28,492 INFO L93 Difference]: Finished difference Result 673065 states and 864450 transitions. [2019-09-10 06:57:28,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 712 states. [2019-09-10 06:57:28,492 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 77 [2019-09-10 06:57:28,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:57:29,271 INFO L225 Difference]: With dead ends: 673065 [2019-09-10 06:57:29,271 INFO L226 Difference]: Without dead ends: 673065 [2019-09-10 06:57:29,283 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 871 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 737 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254047 ImplicationChecksByTransitivity, 141.7s TimeCoverageRelationStatistics Valid=51309, Invalid=494073, Unknown=0, NotChecked=0, Total=545382 [2019-09-10 06:57:29,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 673065 states. [2019-09-10 06:57:34,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 673065 to 238316. [2019-09-10 06:57:34,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238316 states. [2019-09-10 06:57:34,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238316 states to 238316 states and 310853 transitions. [2019-09-10 06:57:34,489 INFO L78 Accepts]: Start accepts. Automaton has 238316 states and 310853 transitions. Word has length 77 [2019-09-10 06:57:34,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:57:34,490 INFO L475 AbstractCegarLoop]: Abstraction has 238316 states and 310853 transitions. [2019-09-10 06:57:34,490 INFO L476 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-09-10 06:57:34,490 INFO L276 IsEmpty]: Start isEmpty. Operand 238316 states and 310853 transitions. [2019-09-10 06:57:34,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-10 06:57:34,503 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:57:34,503 INFO L399 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:57:34,503 INFO L418 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:57:34,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:57:34,504 INFO L82 PathProgramCache]: Analyzing trace with hash -146724755, now seen corresponding path program 2 times [2019-09-10 06:57:34,504 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:57:34,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:57:34,505 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:57:34,505 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:57:34,506 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:57:34,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:57:34,553 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 36 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:57:34,553 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:57:34,553 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:57:34,554 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 06:57:34,554 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 06:57:34,554 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:57:34,554 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 06:57:34,577 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-10 06:57:34,577 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 06:57:34,659 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-09-10 06:57:34,659 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 06:57:34,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 27 conjunts are in the unsatisfiable core [2019-09-10 06:57:34,666 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 06:57:34,964 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 21 proven. 11 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-09-10 06:57:34,964 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 06:57:35,532 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 8 proven. 24 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-09-10 06:57:35,538 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 06:57:35,538 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 12, 15] total 28 [2019-09-10 06:57:35,539 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 06:57:35,539 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-10 06:57:35,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-10 06:57:35,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=654, Unknown=0, NotChecked=0, Total=756 [2019-09-10 06:57:35,540 INFO L87 Difference]: Start difference. First operand 238316 states and 310853 transitions. Second operand 15 states. [2019-09-10 06:57:38,839 WARN L188 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 24 DAG size of output: 22 [2019-09-10 06:57:43,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:57:43,789 INFO L93 Difference]: Finished difference Result 543582 states and 692938 transitions. [2019-09-10 06:57:43,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2019-09-10 06:57:43,790 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 103 [2019-09-10 06:57:43,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:57:50,401 INFO L225 Difference]: With dead ends: 543582 [2019-09-10 06:57:50,401 INFO L226 Difference]: Without dead ends: 543582 [2019-09-10 06:57:50,402 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 229 SyntacticMatches, 1 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3982 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=2526, Invalid=10356, Unknown=0, NotChecked=0, Total=12882 [2019-09-10 06:57:50,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543582 states. [2019-09-10 06:57:53,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543582 to 203751. [2019-09-10 06:57:53,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203751 states. [2019-09-10 06:57:54,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203751 states to 203751 states and 264845 transitions. [2019-09-10 06:57:54,188 INFO L78 Accepts]: Start accepts. Automaton has 203751 states and 264845 transitions. Word has length 103 [2019-09-10 06:57:54,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:57:54,189 INFO L475 AbstractCegarLoop]: Abstraction has 203751 states and 264845 transitions. [2019-09-10 06:57:54,189 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-10 06:57:54,189 INFO L276 IsEmpty]: Start isEmpty. Operand 203751 states and 264845 transitions. [2019-09-10 06:57:54,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 06:57:54,199 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:57:54,199 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 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] [2019-09-10 06:57:54,199 INFO L418 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:57:54,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:57:54,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1527377811, now seen corresponding path program 1 times [2019-09-10 06:57:54,200 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:57:54,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:57:54,201 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 06:57:54,201 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:57:54,201 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:57:54,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:57:54,893 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 32 proven. 21 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 06:57:54,893 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:57:54,893 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:57:54,893 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-09-10 06:57:54,893 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [56], [59], [64], [75], [77], [80], [91], [93], [96], [107], [109], [112], [115], [117], [120], [121], [123], [125], [130], [143], [145], [148], [151], [154], [156], [158], [196], [198], [211], [219], [238], [249], [251], [253], [266], [274], [293], [314], [315], [319], [320], [321] [2019-09-10 06:57:54,894 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 06:57:54,894 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 06:57:54,899 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 06:57:54,963 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 06:57:54,963 INFO L272 AbstractInterpreter]: Visited 61 different actions 253 times. Merged at 37 different actions 168 times. Widened at 5 different actions 9 times. Performed 862 root evaluator evaluations with a maximum evaluation depth of 5. Performed 862 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 27 fixpoints after 10 different actions. Largest state had 94 variables. [2019-09-10 06:57:54,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:57:54,964 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 06:57:54,964 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:57:54,964 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 06:57:54,985 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:57:54,985 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 06:57:55,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:57:55,069 INFO L256 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 18 conjunts are in the unsatisfiable core [2019-09-10 06:57:55,073 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 06:57:55,155 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:57:55,283 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 32 proven. 21 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 06:57:55,283 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 06:57:55,427 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:57:55,550 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 32 proven. 21 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-10 06:57:55,564 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 06:57:55,564 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 22 [2019-09-10 06:57:55,564 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 06:57:55,565 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-10 06:57:55,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-10 06:57:55,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=363, Unknown=0, NotChecked=0, Total=462 [2019-09-10 06:57:55,565 INFO L87 Difference]: Start difference. First operand 203751 states and 264845 transitions. Second operand 18 states. [2019-09-10 06:58:02,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:58:02,523 INFO L93 Difference]: Finished difference Result 578858 states and 745605 transitions. [2019-09-10 06:58:02,523 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2019-09-10 06:58:02,523 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 108 [2019-09-10 06:58:02,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:58:03,156 INFO L225 Difference]: With dead ends: 578858 [2019-09-10 06:58:03,156 INFO L226 Difference]: Without dead ends: 578858 [2019-09-10 06:58:03,156 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 204 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 788 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=787, Invalid=2293, Unknown=0, NotChecked=0, Total=3080 [2019-09-10 06:58:03,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 578858 states. [2019-09-10 06:58:10,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 578858 to 302172. [2019-09-10 06:58:10,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302172 states. [2019-09-10 06:58:10,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302172 states to 302172 states and 392848 transitions. [2019-09-10 06:58:10,429 INFO L78 Accepts]: Start accepts. Automaton has 302172 states and 392848 transitions. Word has length 108 [2019-09-10 06:58:10,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:58:10,430 INFO L475 AbstractCegarLoop]: Abstraction has 302172 states and 392848 transitions. [2019-09-10 06:58:10,430 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-10 06:58:10,430 INFO L276 IsEmpty]: Start isEmpty. Operand 302172 states and 392848 transitions. [2019-09-10 06:58:10,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 06:58:10,438 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:58:10,438 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 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] [2019-09-10 06:58:10,438 INFO L418 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:58:10,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:58:10,438 INFO L82 PathProgramCache]: Analyzing trace with hash -1078148336, now seen corresponding path program 2 times [2019-09-10 06:58:10,438 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:58:10,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:58:10,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:58:10,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:58:10,439 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:58:10,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:58:10,492 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2019-09-10 06:58:10,492 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:58:10,492 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:58:10,493 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:58:10,493 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:58:10,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:58:10,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:58:10,493 INFO L87 Difference]: Start difference. First operand 302172 states and 392848 transitions. Second operand 3 states. [2019-09-10 06:58:11,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:58:11,025 INFO L93 Difference]: Finished difference Result 269673 states and 344434 transitions. [2019-09-10 06:58:11,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:58:11,026 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2019-09-10 06:58:11,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:58:11,312 INFO L225 Difference]: With dead ends: 269673 [2019-09-10 06:58:11,312 INFO L226 Difference]: Without dead ends: 269673 [2019-09-10 06:58:11,312 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 06:58:11,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269673 states. [2019-09-10 06:58:17,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269673 to 263982. [2019-09-10 06:58:17,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263982 states. [2019-09-10 06:58:17,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263982 states to 263982 states and 338195 transitions. [2019-09-10 06:58:17,958 INFO L78 Accepts]: Start accepts. Automaton has 263982 states and 338195 transitions. Word has length 109 [2019-09-10 06:58:17,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:58:17,958 INFO L475 AbstractCegarLoop]: Abstraction has 263982 states and 338195 transitions. [2019-09-10 06:58:17,958 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 06:58:17,958 INFO L276 IsEmpty]: Start isEmpty. Operand 263982 states and 338195 transitions. [2019-09-10 06:58:17,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 06:58:17,961 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:58:17,961 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 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] [2019-09-10 06:58:17,962 INFO L418 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:58:17,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:58:17,962 INFO L82 PathProgramCache]: Analyzing trace with hash -706127345, now seen corresponding path program 1 times [2019-09-10 06:58:17,962 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:58:17,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:58:17,963 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 06:58:17,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:58:17,963 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:58:17,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:58:18,003 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-09-10 06:58:18,003 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:58:18,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 06:58:18,003 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:58:18,004 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 06:58:18,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 06:58:18,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 06:58:18,005 INFO L87 Difference]: Start difference. First operand 263982 states and 338195 transitions. Second operand 3 states. [2019-09-10 06:58:18,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:58:18,364 INFO L93 Difference]: Finished difference Result 134912 states and 171075 transitions. [2019-09-10 06:58:18,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 06:58:18,365 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2019-09-10 06:58:18,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:58:18,530 INFO L225 Difference]: With dead ends: 134912 [2019-09-10 06:58:18,530 INFO L226 Difference]: Without dead ends: 134912 [2019-09-10 06:58:18,530 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 06:58:18,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134912 states. [2019-09-10 06:58:20,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134912 to 130004. [2019-09-10 06:58:20,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130004 states. [2019-09-10 06:58:20,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130004 states to 130004 states and 164825 transitions. [2019-09-10 06:58:20,494 INFO L78 Accepts]: Start accepts. Automaton has 130004 states and 164825 transitions. Word has length 109 [2019-09-10 06:58:20,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:58:20,494 INFO L475 AbstractCegarLoop]: Abstraction has 130004 states and 164825 transitions. [2019-09-10 06:58:20,494 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 06:58:20,494 INFO L276 IsEmpty]: Start isEmpty. Operand 130004 states and 164825 transitions. [2019-09-10 06:58:20,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-09-10 06:58:20,496 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:58:20,496 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:58:20,497 INFO L418 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:58:20,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:58:20,497 INFO L82 PathProgramCache]: Analyzing trace with hash -650731441, now seen corresponding path program 1 times [2019-09-10 06:58:20,497 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:58:20,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:58:20,498 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:58:20,498 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:58:20,498 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:58:20,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:58:20,651 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 6 proven. 67 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-10 06:58:20,651 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:58:20,651 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:58:20,651 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 111 with the following transitions: [2019-09-10 06:58:20,652 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [56], [59], [64], [75], [77], [80], [83], [91], [93], [96], [107], [109], [112], [115], [117], [120], [121], [123], [125], [130], [143], [145], [158], [166], [185], [194], [198], [211], [219], [238], [249], [251], [253], [256], [259], [262], [264], [266], [314], [315], [319], [320], [321] [2019-09-10 06:58:20,653 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 06:58:20,653 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 06:58:20,661 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 06:58:20,772 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 06:58:20,773 INFO L272 AbstractInterpreter]: Visited 62 different actions 337 times. Merged at 38 different actions 240 times. Widened at 13 different actions 25 times. Performed 1082 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1082 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 35 fixpoints after 12 different actions. Largest state had 94 variables. [2019-09-10 06:58:20,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:58:20,773 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 06:58:20,774 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:58:20,774 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 06:58:20,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:58:20,797 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 06:58:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:58:20,885 INFO L256 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 24 conjunts are in the unsatisfiable core [2019-09-10 06:58:20,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 06:58:20,975 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:21,684 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 53 proven. 26 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-10 06:58:21,685 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 06:58:21,970 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 53 proven. 26 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-10 06:58:21,982 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 06:58:21,982 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11, 11] total 23 [2019-09-10 06:58:21,983 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 06:58:21,985 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-10 06:58:21,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-10 06:58:21,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2019-09-10 06:58:21,986 INFO L87 Difference]: Start difference. First operand 130004 states and 164825 transitions. Second operand 14 states. [2019-09-10 06:58:22,573 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2019-09-10 06:58:22,756 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-10 06:58:22,947 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-09-10 06:58:23,394 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-10 06:58:23,531 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-09-10 06:58:23,920 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-10 06:58:24,962 WARN L188 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-10 06:58:25,407 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2019-09-10 06:58:25,620 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 06:58:25,979 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-10 06:58:26,174 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-10 06:58:26,471 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2019-09-10 06:58:26,858 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2019-09-10 06:58:27,051 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 06:58:27,344 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-10 06:58:27,681 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-10 06:58:27,935 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-10 06:58:28,146 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-10 06:58:28,608 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-10 06:58:28,747 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2019-09-10 06:58:29,093 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-09-10 06:58:29,405 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-10 06:58:29,667 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-10 06:58:30,047 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2019-09-10 06:58:30,505 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 06:58:30,673 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-10 06:58:30,917 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-10 06:58:31,173 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-10 06:58:31,501 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 06:58:31,838 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-10 06:58:32,535 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-10 06:58:32,820 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-10 06:58:32,995 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 06:58:33,319 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2019-09-10 06:58:33,641 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-10 06:58:34,142 WARN L188 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 06:58:34,363 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-10 06:58:34,685 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-10 06:58:35,249 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-10 06:58:35,621 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-10 06:58:35,884 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-10 06:58:36,269 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2019-09-10 06:58:36,453 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2019-09-10 06:58:38,281 WARN L188 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 06:58:38,598 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-10 06:58:39,179 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-10 06:58:39,374 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-09-10 06:58:39,937 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-10 06:58:40,124 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-10 06:58:40,336 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-09-10 06:58:40,790 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-10 06:58:41,034 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-10 06:58:41,695 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-09-10 06:58:42,005 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2019-09-10 06:58:42,196 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-10 06:58:42,607 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-10 06:58:43,022 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-10 06:58:43,301 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-10 06:58:43,724 WARN L188 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2019-09-10 06:58:44,117 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-09-10 06:58:44,512 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-10 06:58:44,855 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-09-10 06:58:45,061 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-10 06:58:45,389 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-10 06:58:45,610 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-10 06:58:46,252 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-09-10 06:58:46,448 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-10 06:58:46,749 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-10 06:58:47,356 WARN L188 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-10 06:58:47,752 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2019-09-10 06:58:48,020 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-09-10 06:58:48,324 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-10 06:58:48,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:58:48,449 INFO L93 Difference]: Finished difference Result 282237 states and 346775 transitions. [2019-09-10 06:58:48,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2019-09-10 06:58:48,449 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 110 [2019-09-10 06:58:48,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:58:48,746 INFO L225 Difference]: With dead ends: 282237 [2019-09-10 06:58:48,746 INFO L226 Difference]: Without dead ends: 282237 [2019-09-10 06:58:48,747 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 343 GetRequests, 192 SyntacticMatches, 12 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7368 ImplicationChecksByTransitivity, 23.8s TimeCoverageRelationStatistics Valid=3534, Invalid=16206, Unknown=0, NotChecked=0, Total=19740 [2019-09-10 06:58:48,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282237 states. [2019-09-10 06:58:50,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282237 to 219764. [2019-09-10 06:58:50,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219764 states. [2019-09-10 06:58:50,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219764 states to 219764 states and 272682 transitions. [2019-09-10 06:58:50,917 INFO L78 Accepts]: Start accepts. Automaton has 219764 states and 272682 transitions. Word has length 110 [2019-09-10 06:58:50,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:58:50,917 INFO L475 AbstractCegarLoop]: Abstraction has 219764 states and 272682 transitions. [2019-09-10 06:58:50,917 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-10 06:58:50,917 INFO L276 IsEmpty]: Start isEmpty. Operand 219764 states and 272682 transitions. [2019-09-10 06:58:50,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-09-10 06:58:50,922 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:58:50,922 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 06:58:50,922 INFO L418 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:58:50,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:58:50,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1191544689, now seen corresponding path program 1 times [2019-09-10 06:58:50,922 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:58:50,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:58:50,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:58:50,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:58:50,923 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:58:50,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:58:50,980 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-10 06:58:50,981 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 06:58:50,981 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 06:58:50,981 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 06:58:50,982 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 06:58:50,982 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 06:58:50,982 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 06:58:50,982 INFO L87 Difference]: Start difference. First operand 219764 states and 272682 transitions. Second operand 4 states. [2019-09-10 06:58:52,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:58:52,408 INFO L93 Difference]: Finished difference Result 228751 states and 279209 transitions. [2019-09-10 06:58:52,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 06:58:52,409 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 126 [2019-09-10 06:58:52,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:58:52,642 INFO L225 Difference]: With dead ends: 228751 [2019-09-10 06:58:52,643 INFO L226 Difference]: Without dead ends: 228751 [2019-09-10 06:58:52,643 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 06:58:52,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228751 states. [2019-09-10 06:58:54,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228751 to 181492. [2019-09-10 06:58:54,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181492 states. [2019-09-10 06:58:55,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181492 states to 181492 states and 223071 transitions. [2019-09-10 06:58:55,146 INFO L78 Accepts]: Start accepts. Automaton has 181492 states and 223071 transitions. Word has length 126 [2019-09-10 06:58:55,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 06:58:55,147 INFO L475 AbstractCegarLoop]: Abstraction has 181492 states and 223071 transitions. [2019-09-10 06:58:55,147 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 06:58:55,147 INFO L276 IsEmpty]: Start isEmpty. Operand 181492 states and 223071 transitions. [2019-09-10 06:58:55,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2019-09-10 06:58:55,152 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 06:58:55,152 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 06:58:55,152 INFO L418 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 06:58:55,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:58:55,153 INFO L82 PathProgramCache]: Analyzing trace with hash 1034596822, now seen corresponding path program 1 times [2019-09-10 06:58:55,153 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 06:58:55,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:58:55,154 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:58:55,154 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 06:58:55,154 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 06:58:55,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:58:55,405 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 06:58:55,405 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:58:55,405 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 06:58:55,405 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 127 with the following transitions: [2019-09-10 06:58:55,406 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [54], [56], [59], [64], [67], [70], [73], [75], [77], [80], [83], [86], [89], [91], [93], [96], [99], [102], [105], [107], [109], [112], [115], [117], [120], [121], [123], [132], [134], [137], [145], [148], [151], [154], [156], [158], [196], [198], [201], [204], [207], [209], [211], [240], [243], [251], [253], [256], [259], [262], [264], [266], [314], [315], [319], [320], [321] [2019-09-10 06:58:55,407 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 06:58:55,407 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 06:58:55,411 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 06:58:55,880 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 06:58:55,880 INFO L272 AbstractInterpreter]: Visited 75 different actions 849 times. Merged at 51 different actions 665 times. Widened at 17 different actions 120 times. Performed 2481 root evaluator evaluations with a maximum evaluation depth of 5. Performed 2481 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 98 fixpoints after 20 different actions. Largest state had 96 variables. [2019-09-10 06:58:55,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 06:58:55,881 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 06:58:55,881 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 06:58:55,881 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) [2019-09-10 06:58:55,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 06:58:55,908 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 06:58:55,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 06:58:55,999 INFO L256 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-10 06:58:56,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 06:58:56,178 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,285 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,480 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 25 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 06:58:56,480 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 06:58:56,671 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,671 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,672 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,672 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,673 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,673 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,674 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,674 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,675 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,675 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,676 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,676 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,677 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,677 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,677 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,678 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,678 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,678 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,678 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,679 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,679 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,680 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,680 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,680 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,681 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,681 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,682 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,682 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,683 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,683 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,684 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,684 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,685 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:58:56,685 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:59:00,470 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 06:59:00,619 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 06:59:00,629 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 06:59:00,629 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2019-09-10 06:59:00,630 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 06:59:00,630 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-10 06:59:00,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-10 06:59:00,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=559, Unknown=0, NotChecked=0, Total=650 [2019-09-10 06:59:00,630 INFO L87 Difference]: Start difference. First operand 181492 states and 223071 transitions. Second operand 20 states. [2019-09-10 06:59:01,016 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-09-10 06:59:01,472 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2019-09-10 06:59:01,772 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 06:59:01,923 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-09-10 06:59:02,270 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 06:59:02,725 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 06:59:02,955 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 06:59:03,178 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 06:59:03,557 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 06:59:03,729 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-09-10 06:59:03,934 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 06:59:04,264 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 06:59:04,513 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 06:59:04,947 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 06:59:05,314 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 06:59:06,156 WARN L188 SmtUtils]: Spent 799.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 06:59:06,664 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 06:59:06,884 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-10 06:59:07,108 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 06:59:07,497 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 06:59:07,814 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 06:59:08,049 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 06:59:08,346 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 06:59:09,392 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 06:59:09,743 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 06:59:10,224 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 06:59:10,461 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 06:59:10,739 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 06:59:11,015 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 06:59:11,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 06:59:11,538 INFO L93 Difference]: Finished difference Result 310946 states and 379488 transitions. [2019-09-10 06:59:11,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-09-10 06:59:11,538 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 126 [2019-09-10 06:59:11,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 06:59:11,871 INFO L225 Difference]: With dead ends: 310946 [2019-09-10 06:59:11,871 INFO L226 Difference]: Without dead ends: 310946 [2019-09-10 06:59:11,871 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 203 SyntacticMatches, 36 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1105 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=972, Invalid=2334, Unknown=0, NotChecked=0, Total=3306 [2019-09-10 06:59:12,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310946 states.