java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 07:34:20,602 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 07:34:20,605 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 07:34:20,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-10 07:34:20,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 07:34:20,690 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 07:34:20,691 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 07:34:20,693 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-10 07:34:20,718 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 07:34:20,718 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 07:34:20,719 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 07:34:20,719 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 07:34:20,720 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 07:34:20,720 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 07:34:20,720 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 07:34:20,720 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 07:34:20,721 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 07:34:20,721 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 07:34:20,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 07:34:20,723 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 07:34:20,724 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 07:34:20,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 07:34:20,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 07:34:20,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 07:34:20,725 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 07:34:20,725 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 07:34:20,725 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 07:34:20,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 07:34:20,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 07:34:20,725 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 07:34:20,726 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 07:34:20,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 07:34:20,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 07:34:20,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 07:34:20,727 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 07:34:20,727 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 07:34:20,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 07:34:20,727 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 07:34:20,764 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 07:34:20,779 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 07:34:20,782 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 07:34:20,784 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 07:34:20,784 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 07:34:20,785 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2019-09-10 07:34:20,842 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bd8b1da3/167f7b06338f4335b5b293e7f5e6fd7c/FLAGa81cc87c6 [2019-09-10 07:34:21,332 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 07:34:21,333 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2019-09-10 07:34:21,342 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bd8b1da3/167f7b06338f4335b5b293e7f5e6fd7c/FLAGa81cc87c6 [2019-09-10 07:34:21,692 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4bd8b1da3/167f7b06338f4335b5b293e7f5e6fd7c [2019-09-10 07:34:21,702 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 07:34:21,703 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 07:34:21,704 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 07:34:21,704 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 07:34:21,708 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 07:34:21,709 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 07:34:21" (1/1) ... [2019-09-10 07:34:21,712 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c490221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:34:21, skipping insertion in model container [2019-09-10 07:34:21,712 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 07:34:21" (1/1) ... [2019-09-10 07:34:21,719 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 07:34:21,764 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 07:34:21,990 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 07:34:22,003 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 07:34:22,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 07:34:22,168 INFO L192 MainTranslator]: Completed translation [2019-09-10 07:34:22,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:34:22 WrapperNode [2019-09-10 07:34:22,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 07:34:22,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 07:34:22,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 07:34:22,171 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 07:34:22,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:34:22" (1/1) ... [2019-09-10 07:34:22,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:34:22" (1/1) ... [2019-09-10 07:34:22,197 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:34:22" (1/1) ... [2019-09-10 07:34:22,198 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:34:22" (1/1) ... [2019-09-10 07:34:22,213 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:34:22" (1/1) ... [2019-09-10 07:34:22,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:34:22" (1/1) ... [2019-09-10 07:34:22,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:34:22" (1/1) ... [2019-09-10 07:34:22,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 07:34:22,237 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 07:34:22,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 07:34:22,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 07:34:22,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:34:22" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 07:34:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 07:34:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 07:34:22,300 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 07:34:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 07:34:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-10 07:34:22,300 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-10 07:34:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-09-10 07:34:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-10 07:34:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 07:34:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-10 07:34:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-10 07:34:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-10 07:34:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-10 07:34:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-10 07:34:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-10 07:34:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-10 07:34:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 07:34:22,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 07:34:22,303 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 07:34:22,848 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 07:34:22,848 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 07:34:22,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 07:34:22 BoogieIcfgContainer [2019-09-10 07:34:22,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 07:34:22,852 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 07:34:22,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 07:34:22,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 07:34:22,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 07:34:21" (1/3) ... [2019-09-10 07:34:22,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff64ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 07:34:22, skipping insertion in model container [2019-09-10 07:34:22,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:34:22" (2/3) ... [2019-09-10 07:34:22,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ff64ac6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 07:34:22, skipping insertion in model container [2019-09-10 07:34:22,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 07:34:22" (3/3) ... [2019-09-10 07:34:22,860 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2019-09-10 07:34:22,869 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 07:34:22,877 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 07:34:22,894 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 07:34:22,922 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 07:34:22,922 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 07:34:22,922 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 07:34:22,922 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 07:34:22,923 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 07:34:22,923 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 07:34:22,923 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 07:34:22,923 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 07:34:22,939 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states. [2019-09-10 07:34:22,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-09-10 07:34:22,951 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:22,952 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:22,954 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:22,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:22,959 INFO L82 PathProgramCache]: Analyzing trace with hash -1783830804, now seen corresponding path program 1 times [2019-09-10 07:34:22,961 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:23,017 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:23,018 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:23,018 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:23,018 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:23,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:23,323 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:23,323 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:34:23,324 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:23,329 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:34:23,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:34:23,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:34:23,348 INFO L87 Difference]: Start difference. First operand 69 states. Second operand 3 states. [2019-09-10 07:34:23,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:23,423 INFO L93 Difference]: Finished difference Result 107 states and 164 transitions. [2019-09-10 07:34:23,423 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:34:23,425 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2019-09-10 07:34:23,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:23,441 INFO L225 Difference]: With dead ends: 107 [2019-09-10 07:34:23,441 INFO L226 Difference]: Without dead ends: 99 [2019-09-10 07:34:23,445 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:34:23,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2019-09-10 07:34:23,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 97. [2019-09-10 07:34:23,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2019-09-10 07:34:23,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 140 transitions. [2019-09-10 07:34:23,513 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 140 transitions. Word has length 41 [2019-09-10 07:34:23,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:23,515 INFO L475 AbstractCegarLoop]: Abstraction has 97 states and 140 transitions. [2019-09-10 07:34:23,515 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:34:23,516 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 140 transitions. [2019-09-10 07:34:23,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-09-10 07:34:23,520 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:23,521 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:23,521 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:23,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:23,522 INFO L82 PathProgramCache]: Analyzing trace with hash -1976266081, now seen corresponding path program 1 times [2019-09-10 07:34:23,523 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:23,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:23,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:23,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:23,525 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:23,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:23,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:23,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:23,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:34:23,664 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:23,666 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:34:23,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:34:23,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:34:23,668 INFO L87 Difference]: Start difference. First operand 97 states and 140 transitions. Second operand 3 states. [2019-09-10 07:34:23,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:23,723 INFO L93 Difference]: Finished difference Result 155 states and 229 transitions. [2019-09-10 07:34:23,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:34:23,724 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2019-09-10 07:34:23,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:23,728 INFO L225 Difference]: With dead ends: 155 [2019-09-10 07:34:23,728 INFO L226 Difference]: Without dead ends: 155 [2019-09-10 07:34:23,730 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:34:23,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2019-09-10 07:34:23,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 153. [2019-09-10 07:34:23,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-09-10 07:34:23,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 228 transitions. [2019-09-10 07:34:23,762 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 228 transitions. Word has length 42 [2019-09-10 07:34:23,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:23,763 INFO L475 AbstractCegarLoop]: Abstraction has 153 states and 228 transitions. [2019-09-10 07:34:23,763 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:34:23,763 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 228 transitions. [2019-09-10 07:34:23,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-09-10 07:34:23,765 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:23,765 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:23,765 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:23,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:23,766 INFO L82 PathProgramCache]: Analyzing trace with hash -356684214, now seen corresponding path program 1 times [2019-09-10 07:34:23,766 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:23,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:23,768 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:23,768 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:23,769 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:23,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:23,935 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:23,936 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:34:23,936 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:23,937 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:34:23,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:34:23,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:34:23,938 INFO L87 Difference]: Start difference. First operand 153 states and 228 transitions. Second operand 5 states. [2019-09-10 07:34:24,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:24,087 INFO L93 Difference]: Finished difference Result 153 states and 224 transitions. [2019-09-10 07:34:24,088 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:34:24,088 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2019-09-10 07:34:24,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:24,091 INFO L225 Difference]: With dead ends: 153 [2019-09-10 07:34:24,091 INFO L226 Difference]: Without dead ends: 153 [2019-09-10 07:34:24,094 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:34:24,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-09-10 07:34:24,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2019-09-10 07:34:24,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-09-10 07:34:24,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 224 transitions. [2019-09-10 07:34:24,118 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 224 transitions. Word has length 43 [2019-09-10 07:34:24,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:24,119 INFO L475 AbstractCegarLoop]: Abstraction has 153 states and 224 transitions. [2019-09-10 07:34:24,119 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:34:24,119 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 224 transitions. [2019-09-10 07:34:24,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-09-10 07:34:24,123 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:24,124 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:24,124 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:24,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:24,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1803713809, now seen corresponding path program 1 times [2019-09-10 07:34:24,124 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:24,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:24,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:24,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:24,127 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:24,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:24,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:24,206 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:24,206 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:34:24,206 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:24,207 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:34:24,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:34:24,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:34:24,208 INFO L87 Difference]: Start difference. First operand 153 states and 224 transitions. Second operand 5 states. [2019-09-10 07:34:24,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:24,309 INFO L93 Difference]: Finished difference Result 153 states and 222 transitions. [2019-09-10 07:34:24,312 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:34:24,313 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2019-09-10 07:34:24,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:24,314 INFO L225 Difference]: With dead ends: 153 [2019-09-10 07:34:24,314 INFO L226 Difference]: Without dead ends: 153 [2019-09-10 07:34:24,315 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:34:24,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2019-09-10 07:34:24,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2019-09-10 07:34:24,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2019-09-10 07:34:24,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 222 transitions. [2019-09-10 07:34:24,324 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 222 transitions. Word has length 43 [2019-09-10 07:34:24,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:24,325 INFO L475 AbstractCegarLoop]: Abstraction has 153 states and 222 transitions. [2019-09-10 07:34:24,325 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:34:24,325 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 222 transitions. [2019-09-10 07:34:24,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-09-10 07:34:24,326 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:24,326 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:24,326 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:24,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:24,327 INFO L82 PathProgramCache]: Analyzing trace with hash 649222954, now seen corresponding path program 1 times [2019-09-10 07:34:24,327 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:24,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:24,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:24,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:24,329 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:24,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:24,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:24,424 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:24,424 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:34:24,424 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:24,425 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:34:24,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:34:24,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:34:24,426 INFO L87 Difference]: Start difference. First operand 153 states and 222 transitions. Second operand 5 states. [2019-09-10 07:34:24,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:24,521 INFO L93 Difference]: Finished difference Result 543 states and 811 transitions. [2019-09-10 07:34:24,521 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:34:24,522 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2019-09-10 07:34:24,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:24,525 INFO L225 Difference]: With dead ends: 543 [2019-09-10 07:34:24,525 INFO L226 Difference]: Without dead ends: 543 [2019-09-10 07:34:24,526 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-09-10 07:34:24,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2019-09-10 07:34:24,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 409. [2019-09-10 07:34:24,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 409 states. [2019-09-10 07:34:24,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 409 states to 409 states and 610 transitions. [2019-09-10 07:34:24,566 INFO L78 Accepts]: Start accepts. Automaton has 409 states and 610 transitions. Word has length 43 [2019-09-10 07:34:24,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:24,567 INFO L475 AbstractCegarLoop]: Abstraction has 409 states and 610 transitions. [2019-09-10 07:34:24,567 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:34:24,567 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states and 610 transitions. [2019-09-10 07:34:24,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-09-10 07:34:24,568 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:24,569 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:24,569 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:24,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:24,569 INFO L82 PathProgramCache]: Analyzing trace with hash 239806853, now seen corresponding path program 1 times [2019-09-10 07:34:24,570 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:24,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:24,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:24,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:24,571 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:24,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:24,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:24,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:24,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:34:24,661 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:24,662 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:34:24,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:34:24,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:34:24,663 INFO L87 Difference]: Start difference. First operand 409 states and 610 transitions. Second operand 3 states. [2019-09-10 07:34:24,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:24,698 INFO L93 Difference]: Finished difference Result 731 states and 1053 transitions. [2019-09-10 07:34:24,698 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:34:24,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2019-09-10 07:34:24,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:24,705 INFO L225 Difference]: With dead ends: 731 [2019-09-10 07:34:24,706 INFO L226 Difference]: Without dead ends: 731 [2019-09-10 07:34:24,706 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:34:24,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2019-09-10 07:34:24,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 717. [2019-09-10 07:34:24,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 717 states. [2019-09-10 07:34:24,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 1040 transitions. [2019-09-10 07:34:24,727 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 1040 transitions. Word has length 45 [2019-09-10 07:34:24,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:24,728 INFO L475 AbstractCegarLoop]: Abstraction has 717 states and 1040 transitions. [2019-09-10 07:34:24,728 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:34:24,728 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 1040 transitions. [2019-09-10 07:34:24,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-09-10 07:34:24,737 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:24,737 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:24,738 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:24,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:24,739 INFO L82 PathProgramCache]: Analyzing trace with hash 259856196, now seen corresponding path program 1 times [2019-09-10 07:34:24,740 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:24,741 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:24,741 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:24,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:24,743 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:24,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:24,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:24,953 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:24,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:34:24,953 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:24,954 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:34:24,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:34:24,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:34:24,956 INFO L87 Difference]: Start difference. First operand 717 states and 1040 transitions. Second operand 5 states. [2019-09-10 07:34:25,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:25,064 INFO L93 Difference]: Finished difference Result 1181 states and 1706 transitions. [2019-09-10 07:34:25,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:34:25,065 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2019-09-10 07:34:25,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:25,073 INFO L225 Difference]: With dead ends: 1181 [2019-09-10 07:34:25,073 INFO L226 Difference]: Without dead ends: 1181 [2019-09-10 07:34:25,074 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:34:25,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1181 states. [2019-09-10 07:34:25,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1181 to 949. [2019-09-10 07:34:25,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 949 states. [2019-09-10 07:34:25,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 949 states to 949 states and 1364 transitions. [2019-09-10 07:34:25,105 INFO L78 Accepts]: Start accepts. Automaton has 949 states and 1364 transitions. Word has length 45 [2019-09-10 07:34:25,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:25,106 INFO L475 AbstractCegarLoop]: Abstraction has 949 states and 1364 transitions. [2019-09-10 07:34:25,106 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:34:25,106 INFO L276 IsEmpty]: Start isEmpty. Operand 949 states and 1364 transitions. [2019-09-10 07:34:25,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 07:34:25,110 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:25,110 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:25,110 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:25,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:25,111 INFO L82 PathProgramCache]: Analyzing trace with hash -536301941, now seen corresponding path program 1 times [2019-09-10 07:34:25,111 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:25,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:25,113 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:25,113 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:25,113 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:25,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:25,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:25,247 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:25,247 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:34:25,248 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:25,248 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:34:25,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:34:25,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:34:25,249 INFO L87 Difference]: Start difference. First operand 949 states and 1364 transitions. Second operand 5 states. [2019-09-10 07:34:25,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:25,309 INFO L93 Difference]: Finished difference Result 1754 states and 2490 transitions. [2019-09-10 07:34:25,309 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 07:34:25,309 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2019-09-10 07:34:25,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:25,319 INFO L225 Difference]: With dead ends: 1754 [2019-09-10 07:34:25,319 INFO L226 Difference]: Without dead ends: 1754 [2019-09-10 07:34:25,320 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-10 07:34:25,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1754 states. [2019-09-10 07:34:25,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1754 to 997. [2019-09-10 07:34:25,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 997 states. [2019-09-10 07:34:25,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1408 transitions. [2019-09-10 07:34:25,357 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1408 transitions. Word has length 46 [2019-09-10 07:34:25,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:25,358 INFO L475 AbstractCegarLoop]: Abstraction has 997 states and 1408 transitions. [2019-09-10 07:34:25,358 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:34:25,359 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1408 transitions. [2019-09-10 07:34:25,360 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-10 07:34:25,360 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:25,360 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:25,361 INFO L418 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:25,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:25,361 INFO L82 PathProgramCache]: Analyzing trace with hash -121732072, now seen corresponding path program 1 times [2019-09-10 07:34:25,361 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:25,363 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:25,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:25,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:25,364 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:25,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:25,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:25,438 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:25,438 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:34:25,438 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:25,439 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:34:25,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:34:25,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:34:25,440 INFO L87 Difference]: Start difference. First operand 997 states and 1408 transitions. Second operand 3 states. [2019-09-10 07:34:25,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:25,471 INFO L93 Difference]: Finished difference Result 1385 states and 1959 transitions. [2019-09-10 07:34:25,472 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:34:25,472 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2019-09-10 07:34:25,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:25,480 INFO L225 Difference]: With dead ends: 1385 [2019-09-10 07:34:25,480 INFO L226 Difference]: Without dead ends: 1385 [2019-09-10 07:34:25,481 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:34:25,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2019-09-10 07:34:25,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 1383. [2019-09-10 07:34:25,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1383 states. [2019-09-10 07:34:25,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 1958 transitions. [2019-09-10 07:34:25,518 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 1958 transitions. Word has length 46 [2019-09-10 07:34:25,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:25,518 INFO L475 AbstractCegarLoop]: Abstraction has 1383 states and 1958 transitions. [2019-09-10 07:34:25,518 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:34:25,518 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 1958 transitions. [2019-09-10 07:34:25,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-10 07:34:25,520 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:25,520 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:25,520 INFO L418 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:25,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:25,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1242266490, now seen corresponding path program 1 times [2019-09-10 07:34:25,521 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:25,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:25,523 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:25,523 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:25,523 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:25,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:25,613 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:25,613 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:34:25,614 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:34:25,614 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 66 with the following transitions: [2019-09-10 07:34:25,619 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [53], [71], [74], [82], [84], [87], [90], [95], [97], [100], [107], [109], [112], [113], [115], [124], [127], [131], [133], [136], [142], [145], [148], [150], [165], [167], [170], [173], [175], [194], [197], [200], [202], [228], [229], [233], [234], [235] [2019-09-10 07:34:25,668 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:34:25,669 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:34:25,768 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:34:25,966 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 07:34:25,969 INFO L272 AbstractInterpreter]: Visited 55 different actions 150 times. Merged at 30 different actions 83 times. Never widened. Performed 562 root evaluator evaluations with a maximum evaluation depth of 5. Performed 562 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 7 fixpoints after 4 different actions. Largest state had 87 variables. [2019-09-10 07:34:25,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:25,975 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 07:34:26,160 INFO L227 lantSequenceWeakener]: Weakened 7 states. On average, predicates are now at 91.35% of their original sizes. [2019-09-10 07:34:26,160 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 07:34:29,298 INFO L420 sIntCurrentIteration]: We unified 64 AI predicates to 64 [2019-09-10 07:34:29,299 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 07:34:29,300 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-10 07:34:29,300 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [40] imperfect sequences [5] total 43 [2019-09-10 07:34:29,300 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:29,301 INFO L454 AbstractCegarLoop]: Interpolant automaton has 40 states [2019-09-10 07:34:29,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2019-09-10 07:34:29,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=226, Invalid=1334, Unknown=0, NotChecked=0, Total=1560 [2019-09-10 07:34:29,302 INFO L87 Difference]: Start difference. First operand 1383 states and 1958 transitions. Second operand 40 states. [2019-09-10 07:34:36,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:36,608 INFO L93 Difference]: Finished difference Result 1973 states and 2818 transitions. [2019-09-10 07:34:36,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-09-10 07:34:36,608 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 65 [2019-09-10 07:34:36,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:36,618 INFO L225 Difference]: With dead ends: 1973 [2019-09-10 07:34:36,618 INFO L226 Difference]: Without dead ends: 1973 [2019-09-10 07:34:36,621 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 618 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=270, Invalid=1800, Unknown=0, NotChecked=0, Total=2070 [2019-09-10 07:34:36,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1973 states. [2019-09-10 07:34:36,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1973 to 978. [2019-09-10 07:34:36,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 978 states. [2019-09-10 07:34:36,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 978 states to 978 states and 1393 transitions. [2019-09-10 07:34:36,664 INFO L78 Accepts]: Start accepts. Automaton has 978 states and 1393 transitions. Word has length 65 [2019-09-10 07:34:36,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:36,664 INFO L475 AbstractCegarLoop]: Abstraction has 978 states and 1393 transitions. [2019-09-10 07:34:36,664 INFO L476 AbstractCegarLoop]: Interpolant automaton has 40 states. [2019-09-10 07:34:36,664 INFO L276 IsEmpty]: Start isEmpty. Operand 978 states and 1393 transitions. [2019-09-10 07:34:36,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-10 07:34:36,665 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:36,666 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:36,666 INFO L418 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:36,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:36,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1874787643, now seen corresponding path program 1 times [2019-09-10 07:34:36,667 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:36,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:36,669 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:36,669 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:36,669 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:36,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:36,789 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 07:34:36,789 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:36,789 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:34:36,789 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:36,790 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:34:36,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:34:36,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:34:36,791 INFO L87 Difference]: Start difference. First operand 978 states and 1393 transitions. Second operand 5 states. [2019-09-10 07:34:36,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:36,848 INFO L93 Difference]: Finished difference Result 1448 states and 2084 transitions. [2019-09-10 07:34:36,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:34:36,848 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2019-09-10 07:34:36,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:36,855 INFO L225 Difference]: With dead ends: 1448 [2019-09-10 07:34:36,855 INFO L226 Difference]: Without dead ends: 1448 [2019-09-10 07:34:36,856 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 07:34:36,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1448 states. [2019-09-10 07:34:36,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1448 to 1210. [2019-09-10 07:34:36,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1210 states. [2019-09-10 07:34:36,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1210 states to 1210 states and 1733 transitions. [2019-09-10 07:34:36,887 INFO L78 Accepts]: Start accepts. Automaton has 1210 states and 1733 transitions. Word has length 66 [2019-09-10 07:34:36,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:36,887 INFO L475 AbstractCegarLoop]: Abstraction has 1210 states and 1733 transitions. [2019-09-10 07:34:36,887 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:34:36,887 INFO L276 IsEmpty]: Start isEmpty. Operand 1210 states and 1733 transitions. [2019-09-10 07:34:36,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-10 07:34:36,888 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:36,888 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:36,889 INFO L418 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:36,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:36,889 INFO L82 PathProgramCache]: Analyzing trace with hash -2047653759, now seen corresponding path program 1 times [2019-09-10 07:34:36,889 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:36,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:36,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:36,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:36,892 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:36,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:36,970 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-10 07:34:36,970 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:36,970 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:34:36,971 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:36,971 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:34:36,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:34:36,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:34:36,972 INFO L87 Difference]: Start difference. First operand 1210 states and 1733 transitions. Second operand 5 states. [2019-09-10 07:34:37,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:37,048 INFO L93 Difference]: Finished difference Result 1680 states and 2424 transitions. [2019-09-10 07:34:37,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:34:37,049 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 66 [2019-09-10 07:34:37,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:37,056 INFO L225 Difference]: With dead ends: 1680 [2019-09-10 07:34:37,057 INFO L226 Difference]: Without dead ends: 1680 [2019-09-10 07:34:37,057 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:34:37,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2019-09-10 07:34:37,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1442. [2019-09-10 07:34:37,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1442 states. [2019-09-10 07:34:37,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1442 states to 1442 states and 2073 transitions. [2019-09-10 07:34:37,099 INFO L78 Accepts]: Start accepts. Automaton has 1442 states and 2073 transitions. Word has length 66 [2019-09-10 07:34:37,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:37,099 INFO L475 AbstractCegarLoop]: Abstraction has 1442 states and 2073 transitions. [2019-09-10 07:34:37,099 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:34:37,100 INFO L276 IsEmpty]: Start isEmpty. Operand 1442 states and 2073 transitions. [2019-09-10 07:34:37,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-10 07:34:37,101 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:37,102 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:37,103 INFO L418 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:37,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:37,104 INFO L82 PathProgramCache]: Analyzing trace with hash 1463051867, now seen corresponding path program 1 times [2019-09-10 07:34:37,104 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:37,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:37,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:37,107 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:37,108 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:37,370 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:37,370 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:34:37,370 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:34:37,371 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 68 with the following transitions: [2019-09-10 07:34:37,371 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [53], [56], [61], [69], [71], [74], [82], [84], [87], [95], [97], [100], [103], [107], [109], [112], [113], [115], [117], [122], [124], [127], [140], [142], [145], [148], [150], [165], [167], [170], [173], [175], [190], [192], [194], [197], [200], [202], [228], [229], [233], [234], [235] [2019-09-10 07:34:37,377 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:34:37,377 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:34:37,390 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:34:37,564 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:34:37,565 INFO L272 AbstractInterpreter]: Visited 61 different actions 335 times. Merged at 37 different actions 233 times. Widened at 13 different actions 24 times. Performed 1103 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1103 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 45 fixpoints after 14 different actions. Largest state had 87 variables. [2019-09-10 07:34:37,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:37,566 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:34:37,567 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:34:37,567 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:34:37,583 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:37,583 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:34:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:37,661 INFO L256 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-10 07:34:37,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:34:37,816 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 07:34:37,816 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:34:37,906 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 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): Stream closed [2019-09-10 07:34:37,921 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:34:37,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 4, 4] total 14 [2019-09-10 07:34:37,922 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:34:37,922 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-10 07:34:37,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-10 07:34:37,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-09-10 07:34:37,923 INFO L87 Difference]: Start difference. First operand 1442 states and 2073 transitions. Second operand 12 states. [2019-09-10 07:34:40,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:40,904 INFO L93 Difference]: Finished difference Result 11970 states and 16517 transitions. [2019-09-10 07:34:40,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2019-09-10 07:34:40,907 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 67 [2019-09-10 07:34:40,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:40,956 INFO L225 Difference]: With dead ends: 11970 [2019-09-10 07:34:40,957 INFO L226 Difference]: Without dead ends: 11970 [2019-09-10 07:34:40,958 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1349 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=821, Invalid=3339, Unknown=0, NotChecked=0, Total=4160 [2019-09-10 07:34:40,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11970 states. [2019-09-10 07:34:41,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11970 to 4796. [2019-09-10 07:34:41,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4796 states. [2019-09-10 07:34:41,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4796 states to 4796 states and 6661 transitions. [2019-09-10 07:34:41,104 INFO L78 Accepts]: Start accepts. Automaton has 4796 states and 6661 transitions. Word has length 67 [2019-09-10 07:34:41,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:41,105 INFO L475 AbstractCegarLoop]: Abstraction has 4796 states and 6661 transitions. [2019-09-10 07:34:41,105 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-10 07:34:41,105 INFO L276 IsEmpty]: Start isEmpty. Operand 4796 states and 6661 transitions. [2019-09-10 07:34:41,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-10 07:34:41,106 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:41,106 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:41,107 INFO L418 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:41,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:41,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1022906900, now seen corresponding path program 1 times [2019-09-10 07:34:41,107 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:41,110 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:41,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:41,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:41,111 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:41,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:41,312 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:41,313 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:34:41,313 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:34:41,313 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 69 with the following transitions: [2019-09-10 07:34:41,314 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [53], [56], [61], [64], [69], [71], [74], [82], [84], [87], [90], [95], [97], [100], [107], [109], [112], [113], [115], [124], [127], [131], [133], [136], [142], [145], [148], [150], [165], [167], [170], [173], [175], [183], [186], [192], [194], [197], [200], [202], [228], [229], [233], [234], [235] [2019-09-10 07:34:41,317 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:34:41,317 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:34:41,326 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:34:41,464 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:34:41,464 INFO L272 AbstractInterpreter]: Visited 63 different actions 338 times. Merged at 40 different actions 242 times. Widened at 10 different actions 26 times. Performed 1081 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1081 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 27 fixpoints after 9 different actions. Largest state had 87 variables. [2019-09-10 07:34:41,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:41,465 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:34:41,465 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:34:41,465 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:34:41,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:41,484 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:34:41,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:41,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 25 conjunts are in the unsatisfiable core [2019-09-10 07:34:41,624 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:34:42,253 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:42,419 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:42,420 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:34:42,514 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:42,515 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:42,516 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:42,516 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:42,517 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:42,517 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:42,518 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:42,519 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:42,520 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:42,520 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:42,521 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:42,521 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:43,226 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2019-09-10 07:34:43,687 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:43,692 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:34:43,693 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 14, 14] total 31 [2019-09-10 07:34:43,693 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:34:43,693 INFO L454 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-09-10 07:34:43,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-09-10 07:34:43,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=760, Unknown=0, NotChecked=0, Total=930 [2019-09-10 07:34:43,694 INFO L87 Difference]: Start difference. First operand 4796 states and 6661 transitions. Second operand 21 states. [2019-09-10 07:34:43,880 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-10 07:34:44,549 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 36 [2019-09-10 07:34:44,724 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 36 [2019-09-10 07:34:44,920 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2019-09-10 07:34:45,086 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-09-10 07:34:45,268 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-09-10 07:34:47,404 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 39 [2019-09-10 07:34:47,825 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 39 [2019-09-10 07:34:48,193 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2019-09-10 07:34:48,456 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-10 07:34:48,729 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-09-10 07:34:49,094 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-09-10 07:34:49,432 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-09-10 07:34:49,732 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-09-10 07:34:49,930 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-09-10 07:34:50,513 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-10 07:34:51,117 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-10 07:34:52,892 WARN L188 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-10 07:34:53,060 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2019-09-10 07:34:53,343 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2019-09-10 07:34:54,445 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-10 07:34:54,665 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-09-10 07:34:55,076 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 39 [2019-09-10 07:34:55,409 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-09-10 07:34:55,684 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-10 07:34:56,305 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-10 07:34:56,845 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-10 07:34:57,240 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-10 07:34:57,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:57,425 INFO L93 Difference]: Finished difference Result 41394 states and 56623 transitions. [2019-09-10 07:34:57,426 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2019-09-10 07:34:57,426 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 68 [2019-09-10 07:34:57,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:57,598 INFO L225 Difference]: With dead ends: 41394 [2019-09-10 07:34:57,599 INFO L226 Difference]: Without dead ends: 41394 [2019-09-10 07:34:57,603 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 106 SyntacticMatches, 10 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5045 ImplicationChecksByTransitivity, 11.5s TimeCoverageRelationStatistics Valid=3402, Invalid=11850, Unknown=0, NotChecked=0, Total=15252 [2019-09-10 07:34:57,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41394 states. [2019-09-10 07:34:57,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41394 to 17356. [2019-09-10 07:34:57,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17356 states. [2019-09-10 07:34:58,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17356 states to 17356 states and 24164 transitions. [2019-09-10 07:34:58,010 INFO L78 Accepts]: Start accepts. Automaton has 17356 states and 24164 transitions. Word has length 68 [2019-09-10 07:34:58,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:58,010 INFO L475 AbstractCegarLoop]: Abstraction has 17356 states and 24164 transitions. [2019-09-10 07:34:58,010 INFO L476 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-09-10 07:34:58,010 INFO L276 IsEmpty]: Start isEmpty. Operand 17356 states and 24164 transitions. [2019-09-10 07:34:58,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-10 07:34:58,012 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:58,012 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:58,012 INFO L418 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:58,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:58,013 INFO L82 PathProgramCache]: Analyzing trace with hash -1046652122, now seen corresponding path program 1 times [2019-09-10 07:34:58,013 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:58,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:58,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:58,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:58,014 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:58,196 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:58,196 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:34:58,196 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:34:58,197 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 69 with the following transitions: [2019-09-10 07:34:58,197 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [53], [56], [61], [64], [69], [71], [74], [77], [82], [84], [87], [95], [97], [100], [107], [109], [112], [113], [115], [124], [127], [131], [140], [142], [145], [148], [150], [158], [161], [167], [170], [173], [175], [183], [186], [192], [194], [197], [200], [202], [228], [229], [233], [234], [235] [2019-09-10 07:34:58,201 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:34:58,201 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:34:58,209 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:34:58,364 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:34:58,365 INFO L272 AbstractInterpreter]: Visited 63 different actions 415 times. Merged at 40 different actions 312 times. Widened at 13 different actions 45 times. Performed 1345 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1345 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 34 fixpoints after 14 different actions. Largest state had 87 variables. [2019-09-10 07:34:58,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:58,365 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:34:58,365 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:34:58,366 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:34:58,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:58,381 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:34:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:58,454 INFO L256 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-10 07:34:58,459 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:34:58,544 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:58,709 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:58,709 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:34:58,848 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:34:58,946 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:34:58,950 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:34:58,950 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 21 [2019-09-10 07:34:58,950 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:34:58,950 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-10 07:34:58,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-10 07:34:58,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2019-09-10 07:34:58,951 INFO L87 Difference]: Start difference. First operand 17356 states and 24164 transitions. Second operand 17 states. [2019-09-10 07:35:01,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:01,954 INFO L93 Difference]: Finished difference Result 91696 states and 125309 transitions. [2019-09-10 07:35:01,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-09-10 07:35:01,954 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 68 [2019-09-10 07:35:01,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:02,134 INFO L225 Difference]: With dead ends: 91696 [2019-09-10 07:35:02,135 INFO L226 Difference]: Without dead ends: 91696 [2019-09-10 07:35:02,140 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 124 SyntacticMatches, 2 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 773 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=874, Invalid=2432, Unknown=0, NotChecked=0, Total=3306 [2019-09-10 07:35:03,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91696 states. [2019-09-10 07:35:03,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91696 to 42341. [2019-09-10 07:35:03,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42341 states. [2019-09-10 07:35:03,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42341 states to 42341 states and 58742 transitions. [2019-09-10 07:35:03,979 INFO L78 Accepts]: Start accepts. Automaton has 42341 states and 58742 transitions. Word has length 68 [2019-09-10 07:35:03,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:03,979 INFO L475 AbstractCegarLoop]: Abstraction has 42341 states and 58742 transitions. [2019-09-10 07:35:03,979 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-10 07:35:03,979 INFO L276 IsEmpty]: Start isEmpty. Operand 42341 states and 58742 transitions. [2019-09-10 07:35:03,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-10 07:35:03,981 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:03,981 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:03,981 INFO L418 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:03,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:03,981 INFO L82 PathProgramCache]: Analyzing trace with hash 9977577, now seen corresponding path program 1 times [2019-09-10 07:35:03,981 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:03,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:03,982 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:03,982 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:03,983 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:04,971 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:35:04,971 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:35:04,972 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:35:04,972 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 70 with the following transitions: [2019-09-10 07:35:04,972 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [53], [56], [61], [64], [67], [69], [71], [74], [77], [82], [84], [87], [90], [95], [97], [100], [107], [109], [112], [113], [115], [124], [127], [131], [133], [136], [142], [145], [148], [150], [158], [161], [167], [170], [173], [175], [192], [194], [197], [200], [202], [228], [229], [233], [234], [235] [2019-09-10 07:35:04,975 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:35:04,975 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:35:04,982 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:35:05,094 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:35:05,095 INFO L272 AbstractInterpreter]: Visited 64 different actions 355 times. Merged at 41 different actions 259 times. Widened at 10 different actions 24 times. Performed 1147 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1147 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 30 fixpoints after 14 different actions. Largest state had 87 variables. [2019-09-10 07:35:05,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:05,095 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:35:05,095 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:35:05,095 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:35:05,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:05,118 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:35:05,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:05,214 INFO L256 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-10 07:35:05,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:35:05,545 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:06,982 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:35:06,983 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:35:07,513 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:35:07,517 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:35:07,518 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 11, 11] total 37 [2019-09-10 07:35:07,518 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:35:07,518 INFO L454 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-09-10 07:35:07,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-09-10 07:35:07,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=103, Invalid=1229, Unknown=0, NotChecked=0, Total=1332 [2019-09-10 07:35:07,520 INFO L87 Difference]: Start difference. First operand 42341 states and 58742 transitions. Second operand 28 states. [2019-09-10 07:35:08,759 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2019-09-10 07:35:08,994 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2019-09-10 07:35:09,321 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2019-09-10 07:35:09,727 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 84 [2019-09-10 07:35:10,225 WARN L188 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 94 [2019-09-10 07:35:10,594 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-10 07:35:11,055 WARN L188 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2019-09-10 07:35:11,348 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 07:35:11,679 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79 [2019-09-10 07:35:11,982 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2019-09-10 07:35:12,358 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-10 07:35:12,669 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:35:13,006 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2019-09-10 07:35:13,503 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 99 [2019-09-10 07:35:13,868 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 07:35:14,220 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2019-09-10 07:35:14,716 WARN L188 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 103 [2019-09-10 07:35:15,167 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 95 [2019-09-10 07:35:15,490 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2019-09-10 07:35:15,925 WARN L188 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-10 07:35:16,337 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2019-09-10 07:35:16,771 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 99 [2019-09-10 07:35:17,106 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2019-09-10 07:35:17,553 WARN L188 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 92 [2019-09-10 07:35:17,771 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-10 07:35:18,257 WARN L188 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 108 [2019-09-10 07:35:18,529 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-10 07:35:19,031 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-10 07:35:19,469 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2019-09-10 07:35:19,687 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-10 07:35:20,254 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2019-09-10 07:35:20,883 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 96 [2019-09-10 07:35:21,111 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-09-10 07:35:21,771 WARN L188 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 112 [2019-09-10 07:35:22,080 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-10 07:35:22,249 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-09-10 07:35:22,728 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2019-09-10 07:35:23,027 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-10 07:35:23,330 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-10 07:35:23,496 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-09-10 07:35:23,904 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-10 07:35:24,081 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-09-10 07:35:24,585 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2019-09-10 07:35:24,905 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 07:35:25,328 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2019-09-10 07:35:25,634 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 07:35:25,815 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2019-09-10 07:35:26,211 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2019-09-10 07:35:26,656 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2019-09-10 07:35:26,822 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-09-10 07:35:27,113 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2019-09-10 07:35:27,474 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-10 07:35:27,802 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 54 [2019-09-10 07:35:28,195 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 07:35:28,545 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2019-09-10 07:35:28,773 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-10 07:35:29,174 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-10 07:35:29,471 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 57 [2019-09-10 07:35:29,764 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-10 07:35:30,260 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2019-09-10 07:35:30,697 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2019-09-10 07:35:31,290 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-10 07:35:31,678 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-10 07:35:32,033 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2019-09-10 07:35:32,408 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-10 07:35:32,805 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-10 07:35:33,261 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2019-09-10 07:35:33,642 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 77 [2019-09-10 07:35:34,088 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:35:34,357 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-10 07:35:34,651 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 07:35:35,115 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2019-09-10 07:35:35,691 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 39 [2019-09-10 07:35:35,957 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2019-09-10 07:35:36,258 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2019-09-10 07:35:36,549 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 07:35:36,735 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2019-09-10 07:35:36,919 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2019-09-10 07:35:37,404 WARN L188 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 87 [2019-09-10 07:35:37,590 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2019-09-10 07:35:37,877 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2019-09-10 07:35:38,173 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2019-09-10 07:35:38,502 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2019-09-10 07:35:38,692 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2019-09-10 07:35:38,855 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-09-10 07:35:39,260 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 67 [2019-09-10 07:35:39,485 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 44 [2019-09-10 07:35:39,730 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-10 07:35:39,938 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-09-10 07:35:40,308 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-10 07:35:40,659 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2019-09-10 07:35:40,864 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-10 07:35:41,256 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 70 [2019-09-10 07:35:41,786 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2019-09-10 07:35:42,001 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-09-10 07:35:42,525 WARN L188 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 94 [2019-09-10 07:35:42,726 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2019-09-10 07:35:43,065 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2019-09-10 07:35:43,359 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 73 [2019-09-10 07:35:43,586 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2019-09-10 07:35:43,762 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2019-09-10 07:35:44,366 WARN L188 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 97 [2019-09-10 07:35:44,587 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2019-09-10 07:35:45,181 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2019-09-10 07:35:45,471 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 75 [2019-09-10 07:35:45,733 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2019-09-10 07:35:46,029 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 66 [2019-09-10 07:35:46,627 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 87 [2019-09-10 07:35:47,001 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2019-09-10 07:35:47,344 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 78 [2019-09-10 07:35:47,833 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 90 [2019-09-10 07:35:48,139 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-10 07:35:48,369 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 50 [2019-09-10 07:35:48,840 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2019-09-10 07:35:49,137 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-10 07:35:49,565 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 71 [2019-09-10 07:35:49,737 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2019-09-10 07:35:50,148 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 79 [2019-09-10 07:35:50,567 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-10 07:35:51,183 WARN L188 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2019-09-10 07:35:51,480 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-10 07:35:51,656 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2019-09-10 07:35:51,978 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 70 [2019-09-10 07:35:52,378 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-10 07:35:52,943 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-09-10 07:35:53,422 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 84 [2019-09-10 07:35:53,804 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-09-10 07:35:53,986 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-09-10 07:35:54,545 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 75 [2019-09-10 07:35:54,770 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-09-10 07:35:55,165 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-10 07:35:55,443 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-09-10 07:35:55,973 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-10 07:35:56,247 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-10 07:35:56,613 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 07:35:56,818 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2019-09-10 07:35:57,209 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2019-09-10 07:35:57,465 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 60 [2019-09-10 07:35:57,704 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-10 07:35:58,389 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-09-10 07:35:58,556 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-09-10 07:35:58,885 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-10 07:35:59,082 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-09-10 07:35:59,399 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-10 07:35:59,674 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-09-10 07:35:59,965 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-10 07:36:00,341 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-10 07:36:00,689 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-10 07:36:00,899 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 07:36:01,273 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2019-09-10 07:36:01,601 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 07:36:01,838 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-10 07:36:02,126 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-10 07:36:02,398 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-09-10 07:36:02,687 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-10 07:36:03,150 WARN L188 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2019-09-10 07:36:03,409 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2019-09-10 07:36:03,673 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2019-09-10 07:36:04,340 WARN L188 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 93 [2019-09-10 07:36:04,595 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-10 07:36:05,111 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-09-10 07:36:05,739 WARN L188 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 86 [2019-09-10 07:36:06,265 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2019-09-10 07:36:06,651 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2019-09-10 07:36:07,013 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2019-09-10 07:36:07,186 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-09-10 07:36:07,364 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2019-09-10 07:36:07,843 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2019-09-10 07:36:08,027 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-10 07:36:08,582 WARN L188 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 96 [2019-09-10 07:36:08,819 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 07:36:09,192 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72 [2019-09-10 07:36:09,640 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2019-09-10 07:36:09,886 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:36:10,101 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2019-09-10 07:36:10,348 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-10 07:36:10,620 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2019-09-10 07:36:10,935 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 07:36:11,585 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 84 [2019-09-10 07:36:12,067 WARN L188 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 93 [2019-09-10 07:36:12,625 WARN L188 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 99 [2019-09-10 07:36:12,936 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 67 [2019-09-10 07:36:13,171 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-10 07:36:13,550 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2019-09-10 07:36:13,931 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2019-09-10 07:36:14,356 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-09-10 07:36:14,577 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-10 07:36:14,912 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:36:15,173 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-09-10 07:36:15,352 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-09-10 07:36:15,539 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2019-09-10 07:36:15,950 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 07:36:16,220 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2019-09-10 07:36:16,546 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 83 [2019-09-10 07:36:16,897 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 85 [2019-09-10 07:36:17,323 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2019-09-10 07:36:18,079 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2019-09-10 07:36:18,638 WARN L188 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 96 [2019-09-10 07:36:18,879 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-09-10 07:36:19,088 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-09-10 07:36:19,379 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-10 07:36:19,870 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2019-09-10 07:36:20,310 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 07:36:20,557 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-10 07:36:20,804 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-10 07:36:21,275 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2019-09-10 07:36:21,734 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 94 [2019-09-10 07:36:22,165 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 90 [2019-09-10 07:36:22,732 WARN L188 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 99 [2019-09-10 07:36:23,422 WARN L188 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 103 [2019-09-10 07:36:23,658 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-10 07:36:24,188 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2019-09-10 07:36:24,488 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:36:24,844 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-10 07:36:25,163 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:36:25,539 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-10 07:36:25,907 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2019-09-10 07:36:26,093 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 07:36:26,464 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2019-09-10 07:36:26,681 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-10 07:36:26,860 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-10 07:36:27,046 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 07:36:27,236 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 07:36:27,407 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2019-09-10 07:36:27,759 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2019-09-10 07:36:27,965 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-10 07:36:28,358 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2019-09-10 07:36:28,980 WARN L188 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 113 [2019-09-10 07:36:29,260 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 07:36:29,588 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 84 [2019-09-10 07:36:29,887 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2019-09-10 07:36:30,250 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2019-09-10 07:36:30,572 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2019-09-10 07:36:30,975 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 89 [2019-09-10 07:36:31,385 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 93 [2019-09-10 07:36:31,903 WARN L188 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 93 [2019-09-10 07:36:32,371 WARN L188 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 89 [2019-09-10 07:36:32,686 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2019-09-10 07:36:33,197 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-10 07:36:33,466 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-10 07:36:33,980 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 94 [2019-09-10 07:36:34,539 WARN L188 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 97 [2019-09-10 07:36:34,817 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:36:35,155 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2019-09-10 07:36:35,382 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-10 07:36:35,609 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-10 07:36:35,849 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-10 07:36:36,464 WARN L188 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 106 [2019-09-10 07:36:36,820 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-09-10 07:36:37,161 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 07:36:37,324 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2019-09-10 07:36:37,589 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-10 07:36:37,846 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2019-09-10 07:36:38,085 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-10 07:36:38,380 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-10 07:36:38,809 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 103 [2019-09-10 07:36:39,299 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 97 [2019-09-10 07:36:39,860 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 100 [2019-09-10 07:36:40,156 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2019-09-10 07:36:40,643 WARN L188 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 85 [2019-09-10 07:36:41,034 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 89 [2019-09-10 07:36:41,614 WARN L188 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 109 [2019-09-10 07:36:41,933 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2019-09-10 07:36:42,290 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2019-09-10 07:36:42,489 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2019-09-10 07:36:42,916 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-10 07:36:43,289 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2019-09-10 07:36:43,504 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-10 07:36:44,188 WARN L188 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 116 [2019-09-10 07:36:44,538 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2019-09-10 07:36:44,897 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 87 [2019-09-10 07:36:45,244 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2019-09-10 07:36:45,632 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 87 [2019-09-10 07:36:45,897 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-10 07:36:46,147 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-10 07:36:46,366 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-10 07:36:46,838 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 96 [2019-09-10 07:36:47,076 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-10 07:36:47,296 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-10 07:36:47,451 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-10 07:36:47,706 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-10 07:36:48,100 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2019-09-10 07:36:48,347 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-10 07:36:49,067 WARN L188 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 119 [2019-09-10 07:36:49,417 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2019-09-10 07:36:49,794 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2019-09-10 07:36:50,774 WARN L188 SmtUtils]: Spent 880.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2019-09-10 07:36:51,179 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2019-09-10 07:36:51,625 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 99 [2019-09-10 07:36:51,946 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2019-09-10 07:36:52,265 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:36:52,479 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 07:36:52,722 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-10 07:36:52,906 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 07:36:53,178 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2019-09-10 07:36:53,652 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 106 [2019-09-10 07:36:53,961 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2019-09-10 07:36:54,304 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 83 [2019-09-10 07:36:54,793 WARN L188 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 106 [2019-09-10 07:36:55,116 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-09-10 07:36:55,276 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 07:36:55,441 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 07:36:55,691 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-10 07:36:55,865 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 07:36:56,033 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-10 07:36:56,486 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:36:56,850 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-10 07:36:57,165 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 76 [2019-09-10 07:36:57,496 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 07:36:57,783 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2019-09-10 07:36:58,312 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 109 [2019-09-10 07:36:58,650 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2019-09-10 07:36:59,000 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 86 [2019-09-10 07:36:59,495 WARN L188 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 109 [2019-09-10 07:37:00,172 WARN L188 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 113 [2019-09-10 07:37:00,707 WARN L188 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 100 [2019-09-10 07:37:00,902 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-09-10 07:37:01,173 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-10 07:37:01,415 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2019-09-10 07:37:01,870 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 102 [2019-09-10 07:37:02,106 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-10 07:37:02,272 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-10 07:37:02,430 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-10 07:37:02,647 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-10 07:37:03,234 WARN L188 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 90 [2019-09-10 07:37:03,508 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2019-09-10 07:37:03,843 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-09-10 07:37:04,265 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66 [2019-09-10 07:37:04,968 WARN L188 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 122 [2019-09-10 07:37:05,488 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 105 [2019-09-10 07:37:05,980 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2019-09-10 07:37:06,483 WARN L188 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 103 [2019-09-10 07:37:06,832 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 81 [2019-09-10 07:37:07,224 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-10 07:37:07,402 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-10 07:37:07,572 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-10 07:37:08,054 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2019-09-10 07:37:08,312 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-09-10 07:37:09,075 WARN L188 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 112 [2019-09-10 07:37:09,578 WARN L188 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 99 [2019-09-10 07:37:09,990 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-10 07:37:10,468 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-09-10 07:37:10,792 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2019-09-10 07:37:11,337 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 07:37:11,627 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-10 07:37:12,187 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 07:37:12,490 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-09-10 07:37:13,013 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2019-09-10 07:37:13,310 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:37:13,685 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-10 07:37:14,186 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2019-09-10 07:37:14,599 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 07:37:15,136 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 86 [2019-09-10 07:37:15,390 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-09-10 07:37:15,756 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2019-09-10 07:37:16,205 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2019-09-10 07:37:16,387 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-09-10 07:37:16,757 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2019-09-10 07:37:17,105 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 07:37:17,386 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-09-10 07:37:17,831 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2019-09-10 07:37:18,064 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-09-10 07:37:18,652 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 07:37:18,940 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-10 07:37:19,137 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-10 07:37:19,525 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2019-09-10 07:37:20,286 WARN L188 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2019-09-10 07:37:20,593 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-10 07:37:21,104 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2019-09-10 07:37:21,420 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-10 07:37:21,839 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2019-09-10 07:37:22,097 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 07:37:22,360 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-10 07:37:22,771 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-10 07:37:23,161 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2019-09-10 07:37:23,793 WARN L188 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2019-09-10 07:37:24,132 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-10 07:37:24,811 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 86 [2019-09-10 07:37:25,180 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 07:37:25,529 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2019-09-10 07:37:26,011 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 84 [2019-09-10 07:37:26,262 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 07:37:26,799 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2019-09-10 07:37:27,033 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-10 07:37:27,390 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 07:37:27,753 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-10 07:37:28,154 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-10 07:37:28,817 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2019-09-10 07:37:29,099 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-10 07:37:29,365 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 07:37:29,724 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:37:29,973 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2019-09-10 07:37:30,390 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-10 07:37:31,018 WARN L188 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 93 [2019-09-10 07:37:31,483 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2019-09-10 07:37:32,056 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:37:32,349 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-10 07:37:32,803 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:37:33,228 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 79 [2019-09-10 07:37:33,969 WARN L188 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 96 [2019-09-10 07:37:34,249 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2019-09-10 07:37:34,790 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2019-09-10 07:37:35,549 WARN L188 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2019-09-10 07:37:35,853 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-10 07:37:36,136 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-10 07:37:36,483 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-10 07:37:36,976 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2019-09-10 07:37:37,321 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-09-10 07:37:37,746 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:37:37,943 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 07:37:38,209 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-10 07:37:38,394 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-10 07:37:38,693 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-10 07:37:38,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:37:38,914 INFO L93 Difference]: Finished difference Result 144532 states and 194036 transitions. [2019-09-10 07:37:38,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 500 states. [2019-09-10 07:37:38,915 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 69 [2019-09-10 07:37:38,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:37:39,127 INFO L225 Difference]: With dead ends: 144532 [2019-09-10 07:37:39,127 INFO L226 Difference]: Without dead ends: 144532 [2019-09-10 07:37:39,154 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 654 GetRequests, 112 SyntacticMatches, 10 SemanticMatches, 532 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125220 ImplicationChecksByTransitivity, 137.7s TimeCoverageRelationStatistics Valid=30023, Invalid=254599, Unknown=0, NotChecked=0, Total=284622 [2019-09-10 07:37:39,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144532 states. [2019-09-10 07:37:39,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144532 to 43374. [2019-09-10 07:37:39,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43374 states. [2019-09-10 07:37:40,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43374 states to 43374 states and 60293 transitions. [2019-09-10 07:37:40,042 INFO L78 Accepts]: Start accepts. Automaton has 43374 states and 60293 transitions. Word has length 69 [2019-09-10 07:37:40,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:37:40,042 INFO L475 AbstractCegarLoop]: Abstraction has 43374 states and 60293 transitions. [2019-09-10 07:37:40,042 INFO L476 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-09-10 07:37:40,042 INFO L276 IsEmpty]: Start isEmpty. Operand 43374 states and 60293 transitions. [2019-09-10 07:37:40,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-10 07:37:40,043 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:37:40,044 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:37:40,044 INFO L418 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:37:40,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:37:40,044 INFO L82 PathProgramCache]: Analyzing trace with hash -337527698, now seen corresponding path program 1 times [2019-09-10 07:37:40,044 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:37:40,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:37:40,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:37:40,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:37:40,046 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:37:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:37:40,097 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:37:40,098 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:37:40,098 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:37:40,098 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:37:40,098 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:37:40,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:37:40,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:37:40,099 INFO L87 Difference]: Start difference. First operand 43374 states and 60293 transitions. Second operand 3 states. [2019-09-10 07:37:40,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:37:40,208 INFO L93 Difference]: Finished difference Result 41654 states and 56653 transitions. [2019-09-10 07:37:40,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:37:40,209 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2019-09-10 07:37:40,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:37:40,256 INFO L225 Difference]: With dead ends: 41654 [2019-09-10 07:37:40,257 INFO L226 Difference]: Without dead ends: 41654 [2019-09-10 07:37:40,257 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:37:40,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41654 states. [2019-09-10 07:37:40,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41654 to 40992. [2019-09-10 07:37:40,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40992 states. [2019-09-10 07:37:41,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40992 states to 40992 states and 55992 transitions. [2019-09-10 07:37:41,032 INFO L78 Accepts]: Start accepts. Automaton has 40992 states and 55992 transitions. Word has length 70 [2019-09-10 07:37:41,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:37:41,033 INFO L475 AbstractCegarLoop]: Abstraction has 40992 states and 55992 transitions. [2019-09-10 07:37:41,033 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:37:41,033 INFO L276 IsEmpty]: Start isEmpty. Operand 40992 states and 55992 transitions. [2019-09-10 07:37:41,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-10 07:37:41,034 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:37:41,034 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:37:41,034 INFO L418 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:37:41,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:37:41,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1576866514, now seen corresponding path program 1 times [2019-09-10 07:37:41,035 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:37:41,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:37:41,036 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:37:41,036 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:37:41,036 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:37:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:37:41,500 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:37:41,500 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:37:41,500 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:37:41,500 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 71 with the following transitions: [2019-09-10 07:37:41,501 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [53], [56], [61], [64], [69], [71], [74], [77], [80], [82], [84], [87], [90], [93], [95], [97], [100], [107], [109], [112], [113], [115], [124], [127], [129], [142], [145], [148], [150], [167], [170], [173], [175], [183], [186], [192], [194], [197], [200], [202], [228], [229], [233], [234], [235] [2019-09-10 07:37:41,502 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:37:41,502 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:37:41,509 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:37:41,667 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:37:41,667 INFO L272 AbstractInterpreter]: Visited 63 different actions 405 times. Merged at 40 different actions 302 times. Widened at 14 different actions 47 times. Performed 1313 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1313 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 34 fixpoints after 14 different actions. Largest state had 87 variables. [2019-09-10 07:37:41,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:37:41,668 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:37:41,668 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:37:41,668 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:37:41,697 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:37:41,697 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:37:41,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:37:41,763 INFO L256 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 39 conjunts are in the unsatisfiable core [2019-09-10 07:37:41,767 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:37:42,424 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:42,615 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2019-09-10 07:37:42,617 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-10 07:37:43,429 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2019-09-10 07:37:43,431 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-10 07:37:43,794 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:43,947 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:45,050 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:37:45,050 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:37:45,590 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:45,838 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:46,113 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:37:46,700 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:37:46,704 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:37:46,704 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 21, 20] total 57 [2019-09-10 07:37:46,704 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:37:46,705 INFO L454 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-09-10 07:37:46,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-09-10 07:37:46,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=2933, Unknown=0, NotChecked=0, Total=3192 [2019-09-10 07:37:46,710 INFO L87 Difference]: Start difference. First operand 40992 states and 55992 transitions. Second operand 39 states. [2019-09-10 07:37:47,432 WARN L188 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 94 [2019-09-10 07:37:49,740 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 40 [2019-09-10 07:37:50,119 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 57 [2019-09-10 07:37:50,469 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2019-09-10 07:37:50,800 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 07:37:51,389 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 80 [2019-09-10 07:37:52,040 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2019-09-10 07:37:52,463 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 79 [2019-09-10 07:37:52,742 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2019-09-10 07:37:53,462 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-09-10 07:37:53,856 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2019-09-10 07:37:54,527 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2019-09-10 07:37:59,869 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2019-09-10 07:38:00,482 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 76 [2019-09-10 07:38:01,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:38:01,104 INFO L93 Difference]: Finished difference Result 57136 states and 78176 transitions. [2019-09-10 07:38:01,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2019-09-10 07:38:01,104 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 70 [2019-09-10 07:38:01,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:38:01,169 INFO L225 Difference]: With dead ends: 57136 [2019-09-10 07:38:01,169 INFO L226 Difference]: Without dead ends: 57136 [2019-09-10 07:38:01,170 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 101 SyntacticMatches, 3 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1287 ImplicationChecksByTransitivity, 10.5s TimeCoverageRelationStatistics Valid=873, Invalid=5447, Unknown=0, NotChecked=0, Total=6320 [2019-09-10 07:38:01,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57136 states. [2019-09-10 07:38:01,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57136 to 41062. [2019-09-10 07:38:01,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41062 states. [2019-09-10 07:38:01,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41062 states to 41062 states and 56086 transitions. [2019-09-10 07:38:01,616 INFO L78 Accepts]: Start accepts. Automaton has 41062 states and 56086 transitions. Word has length 70 [2019-09-10 07:38:01,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:38:01,616 INFO L475 AbstractCegarLoop]: Abstraction has 41062 states and 56086 transitions. [2019-09-10 07:38:01,616 INFO L476 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-09-10 07:38:01,617 INFO L276 IsEmpty]: Start isEmpty. Operand 41062 states and 56086 transitions. [2019-09-10 07:38:01,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-10 07:38:01,617 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:38:01,617 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:38:01,618 INFO L418 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:38:01,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:38:01,618 INFO L82 PathProgramCache]: Analyzing trace with hash 1191255918, now seen corresponding path program 1 times [2019-09-10 07:38:01,618 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:38:01,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:38:01,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:38:01,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:38:01,619 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:38:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:38:01,663 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:38:01,664 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:38:01,664 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:38:01,664 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:38:01,664 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:38:01,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:38:01,665 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:38:01,665 INFO L87 Difference]: Start difference. First operand 41062 states and 56086 transitions. Second operand 3 states. [2019-09-10 07:38:01,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:38:01,722 INFO L93 Difference]: Finished difference Result 23362 states and 31227 transitions. [2019-09-10 07:38:01,723 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:38:01,723 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2019-09-10 07:38:01,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:38:01,748 INFO L225 Difference]: With dead ends: 23362 [2019-09-10 07:38:01,748 INFO L226 Difference]: Without dead ends: 23362 [2019-09-10 07:38:01,749 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:38:01,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23362 states. [2019-09-10 07:38:01,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23362 to 22208. [2019-09-10 07:38:01,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22208 states. [2019-09-10 07:38:01,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22208 states to 22208 states and 29786 transitions. [2019-09-10 07:38:01,957 INFO L78 Accepts]: Start accepts. Automaton has 22208 states and 29786 transitions. Word has length 70 [2019-09-10 07:38:01,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:38:01,957 INFO L475 AbstractCegarLoop]: Abstraction has 22208 states and 29786 transitions. [2019-09-10 07:38:01,957 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:38:01,957 INFO L276 IsEmpty]: Start isEmpty. Operand 22208 states and 29786 transitions. [2019-09-10 07:38:01,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-09-10 07:38:01,958 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:38:01,958 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:38:01,959 INFO L418 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:38:01,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:38:01,959 INFO L82 PathProgramCache]: Analyzing trace with hash 430720802, now seen corresponding path program 1 times [2019-09-10 07:38:01,959 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:38:01,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:38:01,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:38:01,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:38:01,960 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:38:01,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:38:02,533 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:38:02,533 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:38:02,533 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:38:02,534 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 72 with the following transitions: [2019-09-10 07:38:02,534 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [53], [56], [61], [64], [69], [71], [74], [77], [80], [82], [84], [87], [90], [95], [97], [100], [107], [109], [112], [113], [115], [124], [127], [129], [133], [138], [142], [145], [148], [150], [167], [170], [173], [175], [183], [186], [192], [194], [197], [200], [202], [228], [229], [233], [234], [235] [2019-09-10 07:38:02,536 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:38:02,536 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:38:02,548 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:38:02,668 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:38:02,670 INFO L272 AbstractInterpreter]: Visited 64 different actions 218 times. Merged at 39 different actions 132 times. Widened at 3 different actions 6 times. Performed 741 root evaluator evaluations with a maximum evaluation depth of 5. Performed 741 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 14 fixpoints after 7 different actions. Largest state had 87 variables. [2019-09-10 07:38:02,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:38:02,670 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:38:02,670 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:38:02,671 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) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:38:02,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:38:02,694 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:38:02,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:38:02,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 32 conjunts are in the unsatisfiable core [2019-09-10 07:38:02,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:38:03,221 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:04,611 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:38:04,611 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:38:05,369 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:05,659 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:38:05,666 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:38:05,667 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 17, 18] total 42 [2019-09-10 07:38:05,667 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:38:05,667 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-09-10 07:38:05,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-09-10 07:38:05,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=234, Invalid=1488, Unknown=0, NotChecked=0, Total=1722 [2019-09-10 07:38:05,668 INFO L87 Difference]: Start difference. First operand 22208 states and 29786 transitions. Second operand 26 states. [2019-09-10 07:38:06,432 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-09-10 07:38:06,611 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-09-10 07:38:06,793 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2019-09-10 07:38:06,999 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-10 07:38:07,292 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2019-09-10 07:38:08,961 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2019-09-10 07:38:09,423 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2019-09-10 07:38:09,886 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 38 [2019-09-10 07:38:11,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:38:11,390 INFO L93 Difference]: Finished difference Result 46354 states and 61806 transitions. [2019-09-10 07:38:11,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2019-09-10 07:38:11,390 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 71 [2019-09-10 07:38:11,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:38:11,435 INFO L225 Difference]: With dead ends: 46354 [2019-09-10 07:38:11,436 INFO L226 Difference]: Without dead ends: 46354 [2019-09-10 07:38:11,436 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 110 SyntacticMatches, 3 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1341 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=1315, Invalid=4691, Unknown=0, NotChecked=0, Total=6006 [2019-09-10 07:38:11,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46354 states. [2019-09-10 07:38:11,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46354 to 21732. [2019-09-10 07:38:11,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21732 states. [2019-09-10 07:38:11,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21732 states to 21732 states and 29231 transitions. [2019-09-10 07:38:11,708 INFO L78 Accepts]: Start accepts. Automaton has 21732 states and 29231 transitions. Word has length 71 [2019-09-10 07:38:11,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:38:11,709 INFO L475 AbstractCegarLoop]: Abstraction has 21732 states and 29231 transitions. [2019-09-10 07:38:11,709 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-09-10 07:38:11,709 INFO L276 IsEmpty]: Start isEmpty. Operand 21732 states and 29231 transitions. [2019-09-10 07:38:11,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2019-09-10 07:38:11,716 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:38:11,716 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:38:11,716 INFO L418 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:38:11,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:38:11,717 INFO L82 PathProgramCache]: Analyzing trace with hash 2083336193, now seen corresponding path program 1 times [2019-09-10 07:38:11,717 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:38:11,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:38:11,718 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:38:11,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:38:11,719 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:38:11,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:38:11,775 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-10 07:38:11,776 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:38:11,776 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:38:11,776 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:38:11,776 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:38:11,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:38:11,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:38:11,777 INFO L87 Difference]: Start difference. First operand 21732 states and 29231 transitions. Second operand 3 states. [2019-09-10 07:38:11,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:38:11,826 INFO L93 Difference]: Finished difference Result 10805 states and 14474 transitions. [2019-09-10 07:38:11,827 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:38:11,827 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 114 [2019-09-10 07:38:11,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:38:11,840 INFO L225 Difference]: With dead ends: 10805 [2019-09-10 07:38:11,840 INFO L226 Difference]: Without dead ends: 10805 [2019-09-10 07:38:11,841 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:38:11,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10805 states. [2019-09-10 07:38:11,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10805 to 10803. [2019-09-10 07:38:11,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10803 states. [2019-09-10 07:38:11,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10803 states to 10803 states and 14473 transitions. [2019-09-10 07:38:11,978 INFO L78 Accepts]: Start accepts. Automaton has 10803 states and 14473 transitions. Word has length 114 [2019-09-10 07:38:11,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:38:11,978 INFO L475 AbstractCegarLoop]: Abstraction has 10803 states and 14473 transitions. [2019-09-10 07:38:11,978 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:38:11,978 INFO L276 IsEmpty]: Start isEmpty. Operand 10803 states and 14473 transitions. [2019-09-10 07:38:11,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-09-10 07:38:11,986 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:38:11,986 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:38:11,986 INFO L418 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:38:11,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:38:11,987 INFO L82 PathProgramCache]: Analyzing trace with hash -165598935, now seen corresponding path program 1 times [2019-09-10 07:38:11,987 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:38:11,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:38:11,988 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:38:11,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:38:11,989 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:38:12,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:38:12,401 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2019-09-10 07:38:13,648 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 32 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:38:13,648 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:38:13,648 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:38:13,648 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 116 with the following transitions: [2019-09-10 07:38:13,648 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [53], [56], [61], [64], [67], [69], [71], [74], [77], [82], [84], [87], [90], [93], [95], [97], [100], [107], [109], [112], [113], [115], [124], [127], [131], [133], [136], [142], [145], [148], [150], [158], [161], [163], [167], [170], [173], [175], [190], [192], [194], [197], [200], [202], [228], [229], [233], [234], [235] [2019-09-10 07:38:13,650 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:38:13,650 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:38:13,654 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:38:13,836 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:38:13,837 INFO L272 AbstractInterpreter]: Visited 67 different actions 517 times. Merged at 44 different actions 379 times. Widened at 15 different actions 55 times. Performed 1686 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1686 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 65 fixpoints after 17 different actions. Largest state had 87 variables. [2019-09-10 07:38:13,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:38:13,837 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:38:13,837 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:38:13,837 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 07:38:13,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:38:13,852 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 07:38:13,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:38:13,943 INFO L256 TraceCheckSpWp]: Trace formula consists of 618 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-10 07:38:13,947 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:38:14,097 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:14,149 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:14,255 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:14,422 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:14,724 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 30 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:38:14,724 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:38:15,277 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:15,392 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:15,392 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:15,393 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:15,393 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:15,394 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:15,394 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:15,394 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:38:15,438 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 41 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:38:15,441 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:38:15,442 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 12, 12] total 46 [2019-09-10 07:38:15,442 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:38:15,442 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-09-10 07:38:15,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-09-10 07:38:15,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=1947, Unknown=0, NotChecked=0, Total=2070 [2019-09-10 07:38:15,443 INFO L87 Difference]: Start difference. First operand 10803 states and 14473 transitions. Second operand 36 states. [2019-09-10 07:38:16,093 WARN L188 SmtUtils]: Spent 541.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 130 [2019-09-10 07:38:16,741 WARN L188 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 126 [2019-09-10 07:38:17,554 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2019-09-10 07:38:18,109 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 109 [2019-09-10 07:38:18,641 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 121 [2019-09-10 07:38:19,275 WARN L188 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 129 [2019-09-10 07:38:19,791 WARN L188 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 112 [2019-09-10 07:38:20,250 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 108 [2019-09-10 07:38:20,825 WARN L188 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124 [2019-09-10 07:38:21,428 WARN L188 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 129 [2019-09-10 07:38:22,093 WARN L188 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 134 [2019-09-10 07:38:23,102 WARN L188 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 165 [2019-09-10 07:38:24,056 WARN L188 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 167 [2019-09-10 07:38:24,649 WARN L188 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 126 [2019-09-10 07:38:25,323 WARN L188 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 137 [2019-09-10 07:38:25,994 WARN L188 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 137 [2019-09-10 07:38:26,890 WARN L188 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 136 [2019-09-10 07:38:27,451 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 109 [2019-09-10 07:38:28,025 WARN L188 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 108 [2019-09-10 07:38:28,367 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2019-09-10 07:38:28,773 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:38:29,263 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2019-09-10 07:38:29,864 WARN L188 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 112 [2019-09-10 07:38:30,177 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2019-09-10 07:38:30,828 WARN L188 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 120 [2019-09-10 07:38:31,252 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 94 [2019-09-10 07:38:31,483 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2019-09-10 07:38:32,122 WARN L188 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 122 [2019-09-10 07:38:32,489 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 98 [2019-09-10 07:38:32,768 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2019-09-10 07:38:33,122 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 98 [2019-09-10 07:38:33,791 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 116 [2019-09-10 07:38:34,168 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 99 [2019-09-10 07:38:34,755 WARN L188 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 126 [2019-09-10 07:38:35,036 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:38:35,440 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 106 [2019-09-10 07:38:36,136 WARN L188 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 124 [2019-09-10 07:38:36,609 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 107 [2019-09-10 07:38:37,085 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 115 [2019-09-10 07:38:37,771 WARN L188 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 134 [2019-09-10 07:38:38,565 WARN L188 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 126 [2019-09-10 07:38:39,238 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 87 [2019-09-10 07:38:39,702 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-10 07:38:40,178 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 88 [2019-09-10 07:38:40,540 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 86 [2019-09-10 07:38:41,081 WARN L188 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 117 [2019-09-10 07:38:41,486 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-10 07:38:41,960 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 98 [2019-09-10 07:38:42,283 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 87 [2019-09-10 07:38:42,553 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-10 07:38:43,313 WARN L188 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 115 [2019-09-10 07:38:43,612 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-10 07:38:44,031 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 90 [2019-09-10 07:38:44,244 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-10 07:38:44,681 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 96 [2019-09-10 07:38:45,136 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 07:38:45,427 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-10 07:38:45,790 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 89 [2019-09-10 07:38:46,455 WARN L188 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 131 [2019-09-10 07:38:47,067 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 91 [2019-09-10 07:38:47,501 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2019-09-10 07:38:47,808 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 07:38:48,096 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2019-09-10 07:38:48,819 WARN L188 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 134 [2019-09-10 07:38:49,321 WARN L188 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 115 [2019-09-10 07:38:49,640 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 85 [2019-09-10 07:38:50,049 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 92 [2019-09-10 07:38:50,508 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:38:50,684 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2019-09-10 07:38:50,958 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:38:51,689 WARN L188 SmtUtils]: Spent 500.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 131 [2019-09-10 07:38:52,153 WARN L188 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 104 [2019-09-10 07:38:52,484 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 83 [2019-09-10 07:38:52,816 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 86 [2019-09-10 07:38:53,638 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 108 [2019-09-10 07:38:53,963 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2019-09-10 07:38:54,452 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 110 [2019-09-10 07:38:55,039 WARN L188 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 125 [2019-09-10 07:38:55,468 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 101 [2019-09-10 07:38:55,742 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2019-09-10 07:38:56,286 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2019-09-10 07:38:56,468 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2019-09-10 07:38:56,834 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 101 [2019-09-10 07:38:57,108 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-10 07:38:57,482 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 92 [2019-09-10 07:38:57,918 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2019-09-10 07:38:58,315 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2019-09-10 07:38:58,693 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2019-09-10 07:38:59,140 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 105 [2019-09-10 07:38:59,507 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 89 [2019-09-10 07:38:59,824 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2019-09-10 07:39:00,297 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-10 07:39:00,587 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 81 [2019-09-10 07:39:01,355 WARN L188 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 156 [2019-09-10 07:39:01,916 WARN L188 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 128 [2019-09-10 07:39:02,260 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2019-09-10 07:39:02,635 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 98 [2019-09-10 07:39:02,929 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2019-09-10 07:39:03,458 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 72 [2019-09-10 07:39:03,708 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2019-09-10 07:39:04,303 WARN L188 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 130 [2019-09-10 07:39:04,730 WARN L188 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 107 [2019-09-10 07:39:05,655 WARN L188 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 158 [2019-09-10 07:39:06,199 WARN L188 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 120 [2019-09-10 07:39:06,569 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 98 [2019-09-10 07:39:06,843 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 74 [2019-09-10 07:39:07,211 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 07:39:07,700 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 113 [2019-09-10 07:39:08,181 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 112 [2019-09-10 07:39:08,495 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2019-09-10 07:39:08,935 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 104 [2019-09-10 07:39:09,171 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2019-09-10 07:39:09,600 WARN L188 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2019-09-10 07:39:10,037 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 99 [2019-09-10 07:39:10,406 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 94 [2019-09-10 07:39:10,816 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 100 [2019-09-10 07:39:11,201 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-09-10 07:39:11,557 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 07:39:11,937 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2019-09-10 07:39:12,288 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:39:12,674 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 100 [2019-09-10 07:39:12,944 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2019-09-10 07:39:13,251 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 93 [2019-09-10 07:39:13,569 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2019-09-10 07:39:13,923 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 93 [2019-09-10 07:39:14,381 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:39:14,684 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 87 [2019-09-10 07:39:15,078 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 100 [2019-09-10 07:39:15,604 WARN L188 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 119 [2019-09-10 07:39:16,141 WARN L188 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2019-09-10 07:39:16,676 WARN L188 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 119 [2019-09-10 07:39:17,054 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2019-09-10 07:39:17,381 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 93 [2019-09-10 07:39:17,773 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2019-09-10 07:39:18,287 WARN L188 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2019-09-10 07:39:18,719 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 111 [2019-09-10 07:39:19,180 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2019-09-10 07:39:19,540 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 93 [2019-09-10 07:39:20,100 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 88 [2019-09-10 07:39:20,392 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:39:20,777 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 94 [2019-09-10 07:39:21,210 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 102 [2019-09-10 07:39:21,636 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 102 [2019-09-10 07:39:21,933 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 87 [2019-09-10 07:39:22,306 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 96 [2019-09-10 07:39:22,773 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 104 [2019-09-10 07:39:23,315 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 96 [2019-09-10 07:39:23,632 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:39:23,988 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2019-09-10 07:39:24,621 WARN L188 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 119 [2019-09-10 07:39:25,157 WARN L188 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 118 [2019-09-10 07:39:25,684 WARN L188 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 119 [2019-09-10 07:39:26,000 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 90 [2019-09-10 07:39:26,382 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2019-09-10 07:39:26,700 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2019-09-10 07:39:27,309 WARN L188 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2019-09-10 07:39:27,842 WARN L188 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 121 [2019-09-10 07:39:28,467 WARN L188 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 129 [2019-09-10 07:39:28,906 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 111 [2019-09-10 07:39:29,365 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 110 [2019-09-10 07:39:29,656 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 07:39:30,093 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 81 [2019-09-10 07:39:30,565 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 109 [2019-09-10 07:39:31,027 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 113 [2019-09-10 07:39:31,577 WARN L188 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 121 [2019-09-10 07:39:32,042 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 111 [2019-09-10 07:39:32,480 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 102 [2019-09-10 07:39:32,914 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 108 [2019-09-10 07:39:33,384 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 113 [2019-09-10 07:39:33,908 WARN L188 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 121 [2019-09-10 07:39:34,367 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 72 [2019-09-10 07:39:34,649 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 75 [2019-09-10 07:39:35,114 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2019-09-10 07:39:35,536 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 100 [2019-09-10 07:39:35,955 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2019-09-10 07:39:36,435 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 113 [2019-09-10 07:39:36,835 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2019-09-10 07:39:37,102 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2019-09-10 07:39:37,584 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 07:39:37,837 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2019-09-10 07:39:38,447 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 94 [2019-09-10 07:39:38,682 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-10 07:39:38,993 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 77 [2019-09-10 07:39:39,681 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-10 07:39:40,404 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2019-09-10 07:39:40,784 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2019-09-10 07:39:41,130 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 89 [2019-09-10 07:39:41,376 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 68 [2019-09-10 07:39:42,575 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2019-09-10 07:39:42,903 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2019-09-10 07:39:43,363 WARN L188 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 102 [2019-09-10 07:39:43,893 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2019-09-10 07:39:44,357 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 100 [2019-09-10 07:39:44,676 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2019-09-10 07:39:45,508 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:39:45,735 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2019-09-10 07:39:46,096 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 95 [2019-09-10 07:39:46,440 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 86 [2019-09-10 07:39:46,816 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-09-10 07:39:47,239 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2019-09-10 07:39:47,828 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 07:39:48,138 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2019-09-10 07:39:48,578 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2019-09-10 07:39:48,858 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2019-09-10 07:39:49,243 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 88 [2019-09-10 07:39:49,631 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-09-10 07:39:49,819 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2019-09-10 07:39:50,006 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2019-09-10 07:39:50,271 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2019-09-10 07:39:50,527 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2019-09-10 07:39:50,759 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:39:50,952 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2019-09-10 07:39:51,255 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2019-09-10 07:39:51,558 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 85 [2019-09-10 07:39:51,797 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-09-10 07:39:52,122 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 89 [2019-09-10 07:39:52,320 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2019-09-10 07:39:52,734 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:39:53,073 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2019-09-10 07:39:53,359 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 78 [2019-09-10 07:39:53,649 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2019-09-10 07:39:53,929 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-10 07:39:54,159 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2019-09-10 07:39:54,383 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2019-09-10 07:39:54,658 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2019-09-10 07:39:54,857 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2019-09-10 07:39:55,082 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2019-09-10 07:39:55,374 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:39:55,772 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 89 [2019-09-10 07:39:56,033 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 07:39:56,334 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 80 [2019-09-10 07:39:56,694 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 90 [2019-09-10 07:39:57,018 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-10 07:39:57,543 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2019-09-10 07:39:57,965 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 101 [2019-09-10 07:39:58,439 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 103 [2019-09-10 07:39:58,658 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2019-09-10 07:39:58,900 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 07:39:59,257 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 82 [2019-09-10 07:39:59,627 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 91 [2019-09-10 07:40:00,089 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2019-09-10 07:40:00,380 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2019-09-10 07:40:00,628 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2019-09-10 07:40:00,937 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2019-09-10 07:40:01,226 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2019-09-10 07:40:01,558 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2019-09-10 07:40:01,859 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-10 07:40:02,153 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 76 [2019-09-10 07:40:02,484 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 80 [2019-09-10 07:40:02,817 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2019-09-10 07:40:03,079 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-09-10 07:40:03,567 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2019-09-10 07:40:04,064 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 111 [2019-09-10 07:40:04,405 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2019-09-10 07:40:04,803 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2019-09-10 07:40:05,306 WARN L188 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 112 [2019-09-10 07:40:05,659 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2019-09-10 07:40:05,973 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-10 07:40:06,264 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 81 [2019-09-10 07:40:06,814 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-10 07:40:07,162 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-10 07:40:07,666 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 93 [2019-09-10 07:40:07,970 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 84 [2019-09-10 07:40:08,310 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 91 [2019-09-10 07:40:08,606 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2019-09-10 07:40:09,040 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 100 [2019-09-10 07:40:09,362 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2019-09-10 07:40:09,816 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 101 [2019-09-10 07:40:10,230 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 104 [2019-09-10 07:40:10,664 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 96 [2019-09-10 07:40:11,097 WARN L188 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 102 [2019-09-10 07:40:11,412 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2019-09-10 07:40:11,852 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 98 [2019-09-10 07:40:12,288 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 103 [2019-09-10 07:40:12,596 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2019-09-10 07:40:13,052 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 106 [2019-09-10 07:40:13,543 WARN L188 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 105 [2019-09-10 07:40:13,852 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2019-09-10 07:40:14,233 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 85 [2019-09-10 07:40:14,618 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 86 [2019-09-10 07:40:14,991 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 89 [2019-09-10 07:40:15,613 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2019-09-10 07:40:15,893 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2019-09-10 07:40:16,410 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2019-09-10 07:40:16,773 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 87 [2019-09-10 07:40:17,037 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2019-09-10 07:40:17,318 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2019-09-10 07:40:17,776 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 105 [2019-09-10 07:40:18,249 WARN L188 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 110 [2019-09-10 07:40:18,581 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86 [2019-09-10 07:40:18,956 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2019-09-10 07:40:19,475 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 106 [2019-09-10 07:40:19,979 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 114 [2019-09-10 07:40:20,514 WARN L188 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 113 [2019-09-10 07:40:20,800 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:40:21,284 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 107 [2019-09-10 07:40:21,648 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2019-09-10 07:40:22,031 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 96 [2019-09-10 07:40:22,317 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2019-09-10 07:40:22,880 WARN L188 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 114 [2019-09-10 07:40:23,308 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2019-09-10 07:40:23,610 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 82 [2019-09-10 07:40:23,916 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2019-09-10 07:40:24,568 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2019-09-10 07:40:24,857 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2019-09-10 07:40:25,106 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2019-09-10 07:40:25,737 WARN L188 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 115 [2019-09-10 07:40:26,160 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 99 [2019-09-10 07:40:26,599 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 104 [2019-09-10 07:40:27,262 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 106 [2019-09-10 07:40:27,623 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2019-09-10 07:40:27,940 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2019-09-10 07:40:28,401 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 101 [2019-09-10 07:40:28,750 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2019-09-10 07:40:29,298 WARN L188 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 108 [2019-09-10 07:40:29,623 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 92 [2019-09-10 07:40:29,940 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 90 [2019-09-10 07:40:30,339 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 89 [2019-09-10 07:40:30,698 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 92 [2019-09-10 07:40:31,479 WARN L188 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 109 [2019-09-10 07:40:32,200 WARN L188 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 116 [2019-09-10 07:40:32,483 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:40:32,819 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2019-09-10 07:40:33,146 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2019-09-10 07:40:33,471 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2019-09-10 07:40:33,932 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 109 [2019-09-10 07:40:34,220 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 82 [2019-09-10 07:40:34,816 WARN L188 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 117 [2019-09-10 07:40:35,113 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2019-09-10 07:40:35,621 WARN L188 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 118 [2019-09-10 07:40:35,928 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 93 [2019-09-10 07:40:36,416 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 110 [2019-09-10 07:40:36,716 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2019-09-10 07:40:37,187 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2019-09-10 07:40:37,812 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 101 [2019-09-10 07:40:38,386 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 99 [2019-09-10 07:40:38,733 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95 [2019-09-10 07:40:39,052 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 93 [2019-09-10 07:40:39,604 WARN L188 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 120 [2019-09-10 07:40:40,008 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 97 [2019-09-10 07:40:40,409 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 100 [2019-09-10 07:40:40,743 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2019-09-10 07:40:41,068 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 89 [2019-09-10 07:40:41,380 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 83 [2019-09-10 07:40:41,781 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 90 [2019-09-10 07:40:42,118 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 90 [2019-09-10 07:40:42,702 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2019-09-10 07:40:43,202 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2019-09-10 07:40:43,575 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 99 [2019-09-10 07:40:43,955 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 101 [2019-09-10 07:40:44,840 WARN L188 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 117 [2019-09-10 07:40:45,189 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2019-09-10 07:40:45,713 WARN L188 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 119 [2019-09-10 07:40:46,070 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2019-09-10 07:40:46,436 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 101 [2019-09-10 07:40:46,972 WARN L188 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 120 [2019-09-10 07:40:47,486 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 82 [2019-09-10 07:40:47,825 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 80 [2019-09-10 07:40:48,129 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2019-09-10 07:40:48,392 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2019-09-10 07:40:48,965 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 108 [2019-09-10 07:40:49,565 WARN L188 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 127 [2019-09-10 07:40:50,027 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 111 [2019-09-10 07:40:50,650 WARN L188 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 128 [2019-09-10 07:40:51,011 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 96 [2019-09-10 07:40:51,341 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 78 [2019-09-10 07:40:51,680 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2019-09-10 07:40:52,000 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 74 [2019-09-10 07:40:52,272 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2019-09-10 07:40:52,610 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-10 07:40:53,129 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 102 [2019-09-10 07:40:53,624 WARN L188 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 118 [2019-09-10 07:40:53,927 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2019-09-10 07:40:54,198 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2019-09-10 07:40:54,714 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2019-09-10 07:40:55,179 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 79 [2019-09-10 07:40:55,546 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-09-10 07:40:56,119 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 109 [2019-09-10 07:40:56,455 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2019-09-10 07:40:56,766 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 82 [2019-09-10 07:40:57,076 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 80 [2019-09-10 07:40:57,353 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2019-09-10 07:40:58,041 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-10 07:40:58,371 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2019-09-10 07:40:58,833 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 111 [2019-09-10 07:40:59,178 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2019-09-10 07:40:59,383 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-10 07:40:59,765 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 85 [2019-09-10 07:41:00,578 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-10 07:41:01,121 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-10 07:41:01,440 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2019-09-10 07:41:01,812 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2019-09-10 07:41:02,115 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2019-09-10 07:41:02,629 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 81 [2019-09-10 07:41:03,340 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:41:03,600 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 73 [2019-09-10 07:41:03,995 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 89 [2019-09-10 07:41:04,363 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-10 07:41:04,756 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 83 [2019-09-10 07:41:05,149 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 07:41:05,460 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 83 [2019-09-10 07:41:05,758 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77 [2019-09-10 07:41:06,480 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 109 [2019-09-10 07:41:06,756 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-10 07:41:07,045 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2019-09-10 07:41:07,429 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 85 [2019-09-10 07:41:07,816 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2019-09-10 07:41:08,431 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-10 07:41:08,741 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2019-09-10 07:41:09,033 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 80 [2019-09-10 07:41:09,350 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2019-09-10 07:41:09,719 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 84 [2019-09-10 07:41:09,988 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2019-09-10 07:41:10,255 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 07:41:10,524 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-10 07:41:10,849 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 78 [2019-09-10 07:41:11,267 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:41:11,782 WARN L188 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 120 [2019-09-10 07:41:12,159 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2019-09-10 07:41:12,469 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2019-09-10 07:41:12,765 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2019-09-10 07:41:13,095 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2019-09-10 07:41:13,612 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2019-09-10 07:41:13,899 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-09-10 07:41:14,204 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-09-10 07:41:14,450 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 68 [2019-09-10 07:41:14,760 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 75 [2019-09-10 07:41:15,027 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-09-10 07:41:15,321 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 07:41:15,684 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-10 07:41:16,251 WARN L188 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 126 [2019-09-10 07:41:16,574 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2019-09-10 07:41:17,021 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2019-09-10 07:41:17,351 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 83 [2019-09-10 07:41:17,914 WARN L188 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 125 [2019-09-10 07:41:18,232 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 85 [2019-09-10 07:41:18,491 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2019-09-10 07:41:18,816 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-10 07:41:19,553 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:41:20,052 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2019-09-10 07:41:20,559 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 110 [2019-09-10 07:41:20,891 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2019-09-10 07:41:21,216 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2019-09-10 07:41:21,545 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 84 [2019-09-10 07:41:22,144 WARN L188 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 128 [2019-09-10 07:41:22,589 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 109 [2019-09-10 07:41:22,880 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2019-09-10 07:41:23,561 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 108 [2019-09-10 07:41:23,897 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 86 [2019-09-10 07:41:24,311 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 97 [2019-09-10 07:41:24,639 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 81 [2019-09-10 07:41:25,115 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2019-09-10 07:41:25,460 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2019-09-10 07:41:25,771 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2019-09-10 07:41:26,185 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 98 [2019-09-10 07:41:26,694 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 104 [2019-09-10 07:41:27,053 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 88 [2019-09-10 07:41:27,439 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2019-09-10 07:41:27,736 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-10 07:41:28,087 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2019-09-10 07:41:28,461 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 101 [2019-09-10 07:41:28,728 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 07:41:29,123 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 92 [2019-09-10 07:41:29,486 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 07:41:29,748 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 07:41:30,282 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2019-09-10 07:41:30,599 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2019-09-10 07:41:30,973 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 98 [2019-09-10 07:41:31,278 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2019-09-10 07:41:31,655 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 90 [2019-09-10 07:41:31,923 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 07:41:32,111 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-10 07:41:32,594 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 83 [2019-09-10 07:41:32,885 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2019-09-10 07:41:33,375 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 07:41:33,852 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2019-09-10 07:41:34,255 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2019-09-10 07:41:34,588 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2019-09-10 07:41:35,075 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2019-09-10 07:41:35,365 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2019-09-10 07:41:35,639 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2019-09-10 07:41:36,079 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2019-09-10 07:41:36,341 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-10 07:41:36,653 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 07:41:36,977 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2019-09-10 07:41:37,448 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 07:41:37,843 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 97 [2019-09-10 07:41:38,517 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 07:41:38,855 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2019-09-10 07:41:39,482 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2019-09-10 07:41:40,019 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 95 [2019-09-10 07:41:40,394 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2019-09-10 07:41:40,753 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 98 [2019-09-10 07:41:41,182 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106 [2019-09-10 07:41:41,617 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 90 [2019-09-10 07:41:42,147 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 51 [2019-09-10 07:41:42,695 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 54 [2019-09-10 07:41:42,909 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-10 07:41:43,648 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 75 [2019-09-10 07:41:43,932 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2019-09-10 07:41:44,282 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 45 [2019-09-10 07:41:44,554 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2019-09-10 07:41:44,891 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-09-10 07:41:45,080 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-09-10 07:41:45,640 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2019-09-10 07:41:45,842 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2019-09-10 07:41:46,109 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2019-09-10 07:41:46,313 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-10 07:41:46,928 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79 [2019-09-10 07:41:48,015 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2019-09-10 07:41:49,416 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2019-09-10 07:41:49,741 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2019-09-10 07:41:50,081 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2019-09-10 07:41:50,776 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2019-09-10 07:41:51,168 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2019-09-10 07:41:51,865 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2019-09-10 07:41:52,524 WARN L188 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2019-09-10 07:41:52,995 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2019-09-10 07:41:55,739 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:41:57,347 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 07:41:58,000 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2019-09-10 07:41:58,963 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-10 07:41:59,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:41:59,102 INFO L93 Difference]: Finished difference Result 58357 states and 75992 transitions. [2019-09-10 07:41:59,106 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 695 states. [2019-09-10 07:41:59,106 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 115 [2019-09-10 07:41:59,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:41:59,150 INFO L225 Difference]: With dead ends: 58357 [2019-09-10 07:41:59,150 INFO L226 Difference]: Without dead ends: 58357 [2019-09-10 07:41:59,165 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 948 GetRequests, 209 SyntacticMatches, 2 SemanticMatches, 737 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242922 ImplicationChecksByTransitivity, 208.2s TimeCoverageRelationStatistics Valid=29638, Invalid=515744, Unknown=0, NotChecked=0, Total=545382 [2019-09-10 07:41:59,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58357 states. [2019-09-10 07:41:59,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58357 to 20017. [2019-09-10 07:41:59,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20017 states. [2019-09-10 07:41:59,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20017 states to 20017 states and 27011 transitions. [2019-09-10 07:41:59,459 INFO L78 Accepts]: Start accepts. Automaton has 20017 states and 27011 transitions. Word has length 115 [2019-09-10 07:41:59,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:41:59,460 INFO L475 AbstractCegarLoop]: Abstraction has 20017 states and 27011 transitions. [2019-09-10 07:41:59,460 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-09-10 07:41:59,460 INFO L276 IsEmpty]: Start isEmpty. Operand 20017 states and 27011 transitions. [2019-09-10 07:41:59,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2019-09-10 07:41:59,466 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:41:59,466 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:41:59,466 INFO L418 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:41:59,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:41:59,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1477981657, now seen corresponding path program 1 times [2019-09-10 07:41:59,467 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:41:59,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:41:59,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:41:59,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:41:59,468 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:41:59,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:41:59,834 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 19 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:41:59,834 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:41:59,834 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:41:59,834 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 116 with the following transitions: [2019-09-10 07:41:59,834 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [53], [56], [61], [64], [69], [71], [74], [77], [80], [82], [84], [87], [90], [93], [95], [97], [100], [103], [107], [109], [112], [113], [115], [117], [122], [124], [127], [140], [142], [145], [148], [150], [167], [170], [173], [175], [183], [188], [190], [192], [194], [197], [200], [202], [228], [229], [233], [234], [235] [2019-09-10 07:41:59,836 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:41:59,837 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:41:59,842 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:41:59,980 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:41:59,981 INFO L272 AbstractInterpreter]: Visited 67 different actions 425 times. Merged at 43 different actions 296 times. Widened at 13 different actions 33 times. Performed 1360 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1360 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 63 fixpoints after 19 different actions. Largest state had 87 variables. [2019-09-10 07:41:59,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:41:59,981 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:41:59,981 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:41:59,981 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:42:00,009 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:42:00,010 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:42:00,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:42:00,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-10 07:42:00,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:42:00,299 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:00,410 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:00,620 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 40 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:42:00,620 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:42:00,921 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:00,921 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:00,922 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:00,922 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:00,922 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:00,923 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:00,923 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:00,924 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:00,924 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:00,924 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:00,925 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:00,925 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:00,925 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:00,926 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:00,926 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:00,926 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:00,927 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:00,927 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:00,927 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:00,928 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:00,928 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:01,917 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:02,020 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 36 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:42:02,031 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:42:02,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 12] total 35 [2019-09-10 07:42:02,031 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:42:02,031 INFO L454 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-09-10 07:42:02,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-09-10 07:42:02,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=1076, Unknown=0, NotChecked=0, Total=1190 [2019-09-10 07:42:02,032 INFO L87 Difference]: Start difference. First operand 20017 states and 27011 transitions. Second operand 25 states. [2019-09-10 07:42:02,264 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2019-09-10 07:42:02,862 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-10 07:42:03,255 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-10 07:42:03,637 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2019-09-10 07:42:04,552 WARN L188 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:42:05,313 WARN L188 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:42:06,166 WARN L188 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:42:07,166 WARN L188 SmtUtils]: Spent 846.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-09-10 07:42:07,829 WARN L188 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:42:08,281 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:42:09,108 WARN L188 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2019-09-10 07:42:09,426 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 07:42:11,986 WARN L188 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2019-09-10 07:42:12,278 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 07:42:12,670 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 07:42:13,287 WARN L188 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:42:13,782 WARN L188 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:42:14,235 WARN L188 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2019-09-10 07:42:14,732 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:42:17,183 WARN L188 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2019-09-10 07:42:17,670 WARN L188 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:42:18,115 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:42:18,452 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:42:18,754 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:42:19,254 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:42:19,620 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:42:19,989 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:42:20,265 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 07:42:20,671 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:42:21,406 WARN L188 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 07:42:21,768 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:42:22,585 WARN L188 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2019-09-10 07:42:24,002 WARN L188 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 113 DAG size of output: 101 [2019-09-10 07:42:24,629 WARN L188 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 07:42:24,871 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:42:25,407 WARN L188 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 07:42:25,990 WARN L188 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2019-09-10 07:42:26,356 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 07:42:27,377 WARN L188 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 103 [2019-09-10 07:42:27,944 WARN L188 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2019-09-10 07:42:29,289 WARN L188 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2019-09-10 07:42:29,727 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-09-10 07:42:30,172 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 07:42:30,544 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 07:42:31,132 WARN L188 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:42:32,132 WARN L188 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2019-09-10 07:42:32,479 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-10 07:42:33,216 WARN L188 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2019-09-10 07:42:33,846 WARN L188 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 101 [2019-09-10 07:42:34,281 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 100 [2019-09-10 07:42:35,025 WARN L188 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:42:35,800 WARN L188 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 94 [2019-09-10 07:42:36,170 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:42:36,414 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:42:36,795 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 07:42:37,458 WARN L188 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 07:42:37,984 WARN L188 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2019-09-10 07:42:40,639 WARN L188 SmtUtils]: Spent 2.56 s on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2019-09-10 07:42:41,369 WARN L188 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 07:42:41,789 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:42:42,335 WARN L188 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:42:42,972 WARN L188 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2019-09-10 07:42:43,346 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 07:42:44,040 WARN L188 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2019-09-10 07:42:44,778 WARN L188 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2019-09-10 07:42:46,449 WARN L188 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 07:42:46,862 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 07:42:47,188 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:42:47,984 WARN L188 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2019-09-10 07:42:48,841 WARN L188 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:42:51,129 WARN L188 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:42:51,920 WARN L188 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 07:42:52,589 WARN L188 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 07:42:53,023 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:42:54,374 WARN L188 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 123 DAG size of output: 111 [2019-09-10 07:42:54,828 WARN L188 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 103 [2019-09-10 07:42:55,643 WARN L188 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:42:55,988 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-10 07:42:56,664 WARN L188 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 07:42:57,188 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-09-10 07:42:57,462 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:42:58,512 WARN L188 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 111 [2019-09-10 07:42:59,110 WARN L188 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 108 [2019-09-10 07:42:59,677 WARN L188 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 97 [2019-09-10 07:43:00,336 WARN L188 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2019-09-10 07:43:00,903 WARN L188 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 07:43:01,256 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2019-09-10 07:43:01,545 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 07:43:01,872 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:43:02,660 WARN L188 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 07:43:03,117 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 101 [2019-09-10 07:43:03,968 WARN L188 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 108 [2019-09-10 07:43:04,705 WARN L188 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 102 [2019-09-10 07:43:05,097 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2019-09-10 07:43:05,774 WARN L188 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 94 [2019-09-10 07:43:06,306 WARN L188 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2019-09-10 07:43:06,631 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2019-09-10 07:43:06,993 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2019-09-10 07:43:07,918 WARN L188 SmtUtils]: Spent 830.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2019-09-10 07:43:08,639 WARN L188 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2019-09-10 07:43:09,088 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 102 [2019-09-10 07:43:09,665 WARN L188 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2019-09-10 07:43:10,032 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2019-09-10 07:43:10,692 WARN L188 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:43:11,186 WARN L188 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 07:43:12,147 WARN L188 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2019-09-10 07:43:13,012 WARN L188 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:43:13,755 WARN L188 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 07:43:14,285 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:43:14,993 WARN L188 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 111 [2019-09-10 07:43:15,479 WARN L188 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 07:43:16,042 WARN L188 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 108 [2019-09-10 07:43:16,544 WARN L188 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2019-09-10 07:43:16,885 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:43:17,596 WARN L188 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 102 [2019-09-10 07:43:17,954 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2019-09-10 07:43:18,305 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 07:43:19,216 WARN L188 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2019-09-10 07:43:20,172 WARN L188 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 07:43:20,705 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2019-09-10 07:43:21,244 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2019-09-10 07:43:21,794 WARN L188 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2019-09-10 07:43:22,115 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:43:22,847 WARN L188 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 07:43:23,235 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:43:24,248 WARN L188 SmtUtils]: Spent 906.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:43:24,696 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:43:25,287 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 07:43:25,974 WARN L188 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:43:26,507 WARN L188 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 07:43:27,109 WARN L188 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 07:43:27,901 WARN L188 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 07:43:28,613 WARN L188 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:43:30,161 WARN L188 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:43:30,786 WARN L188 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:43:31,809 WARN L188 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 07:43:32,310 WARN L188 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:43:32,884 WARN L188 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 104 [2019-09-10 07:43:33,408 WARN L188 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2019-09-10 07:43:33,752 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 07:43:34,332 WARN L188 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:43:35,195 WARN L188 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 07:43:35,842 WARN L188 SmtUtils]: Spent 550.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-09-10 07:43:36,432 WARN L188 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 07:43:37,100 WARN L188 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101 [2019-09-10 07:43:37,870 WARN L188 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2019-09-10 07:43:38,131 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2019-09-10 07:43:38,423 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 07:43:39,581 WARN L188 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 111 [2019-09-10 07:43:40,452 WARN L188 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 108 [2019-09-10 07:43:40,971 WARN L188 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:43:41,791 WARN L188 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:43:42,548 WARN L188 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:43:42,991 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 07:43:43,271 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2019-09-10 07:43:43,603 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:43:43,940 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-10 07:43:44,297 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2019-09-10 07:43:44,825 WARN L188 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 07:43:45,551 WARN L188 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 07:43:46,035 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:43:46,466 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 07:43:46,783 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-10 07:43:47,213 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 07:43:47,547 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:43:48,382 WARN L188 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106 [2019-09-10 07:43:49,368 WARN L188 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2019-09-10 07:43:49,855 WARN L188 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 07:43:50,361 WARN L188 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2019-09-10 07:43:51,043 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 07:43:51,634 WARN L188 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:43:51,977 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:43:52,600 WARN L188 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 102 [2019-09-10 07:43:53,618 WARN L188 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 07:43:54,054 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2019-09-10 07:43:54,479 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2019-09-10 07:43:54,833 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 07:43:55,567 WARN L188 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2019-09-10 07:43:55,937 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:43:56,649 WARN L188 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 07:43:57,132 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:43:57,624 WARN L188 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:43:59,389 WARN L188 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:44:01,904 WARN L188 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:44:02,798 WARN L188 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-10 07:44:03,275 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 07:44:03,859 WARN L188 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 07:44:04,266 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:44:04,677 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 07:44:05,150 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:44:05,421 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 07:44:06,114 WARN L188 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2019-09-10 07:44:08,224 WARN L188 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 115 DAG size of output: 103 [2019-09-10 07:44:08,701 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 07:44:11,353 WARN L188 SmtUtils]: Spent 2.55 s on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 07:44:11,956 WARN L188 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101 [2019-09-10 07:44:12,319 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-09-10 07:44:13,066 WARN L188 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2019-09-10 07:44:13,501 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2019-09-10 07:44:14,359 WARN L188 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2019-09-10 07:44:14,810 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 94 [2019-09-10 07:44:15,501 WARN L188 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2019-09-10 07:44:16,457 WARN L188 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 97 [2019-09-10 07:44:17,682 WARN L188 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:44:18,394 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 07:44:18,660 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:44:18,982 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:44:19,583 WARN L188 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 07:44:20,177 WARN L188 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 07:44:21,635 WARN L188 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:44:22,038 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 07:44:22,257 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:44:22,648 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:44:22,947 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:44:23,353 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:44:24,126 WARN L188 SmtUtils]: Spent 605.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 103 [2019-09-10 07:44:24,898 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 07:44:25,299 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2019-09-10 07:44:25,594 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-09-10 07:44:25,915 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 07:44:26,390 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-09-10 07:44:26,859 WARN L188 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 07:44:27,188 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 07:44:27,634 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:44:28,222 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 108 [2019-09-10 07:44:28,815 WARN L188 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 100 [2019-09-10 07:44:29,351 WARN L188 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 07:44:29,911 WARN L188 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 94 [2019-09-10 07:44:30,258 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2019-09-10 07:44:30,615 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 07:44:30,937 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 07:44:31,220 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:44:31,473 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:44:32,038 WARN L188 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 07:44:32,881 WARN L188 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 105 [2019-09-10 07:44:33,517 WARN L188 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2019-09-10 07:44:33,912 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2019-09-10 07:44:34,256 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 58 [2019-09-10 07:44:34,582 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 07:44:34,830 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:44:35,228 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 07:44:36,045 WARN L188 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 07:44:36,509 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 07:44:36,738 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2019-09-10 07:44:37,146 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 07:44:37,736 WARN L188 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 07:44:38,057 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:44:38,516 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 07:44:38,815 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:44:39,307 WARN L188 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 07:44:39,818 WARN L188 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 07:44:40,556 WARN L188 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 07:44:40,894 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 07:44:41,173 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:44:41,706 WARN L188 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:44:42,016 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-10 07:44:42,571 WARN L188 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 07:44:42,884 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 07:44:43,299 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 07:44:43,870 WARN L188 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2019-09-10 07:44:44,181 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:44:44,934 WARN L188 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 07:44:45,699 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2019-09-10 07:44:46,101 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 07:44:46,466 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 07:44:46,986 WARN L188 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-10 07:44:47,331 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 07:44:47,656 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:44:48,353 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-09-10 07:44:48,672 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:44:49,020 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74 [2019-09-10 07:44:50,027 WARN L188 SmtUtils]: Spent 896.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 07:44:50,339 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:44:50,852 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:44:51,147 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-10 07:44:51,526 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:44:51,956 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:44:52,568 WARN L188 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:44:52,802 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-10 07:44:53,176 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:44:53,693 WARN L188 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:44:54,252 WARN L188 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 07:44:54,767 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 07:44:55,381 WARN L188 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 07:44:55,728 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:44:56,139 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 07:44:56,642 WARN L188 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 07:44:57,098 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2019-09-10 07:44:57,566 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 76 [2019-09-10 07:44:57,959 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:44:58,319 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 07:44:58,674 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-10 07:44:58,946 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 07:44:59,407 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 07:44:59,874 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2019-09-10 07:45:00,299 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:45:00,859 WARN L188 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2019-09-10 07:45:01,276 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 07:45:01,573 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:45:02,021 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 07:45:02,387 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 07:45:02,844 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 07:45:03,397 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2019-09-10 07:45:04,219 WARN L188 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2019-09-10 07:45:04,850 WARN L188 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2019-09-10 07:45:05,368 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 07:45:05,656 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:45:06,137 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 07:45:06,493 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:45:07,368 WARN L188 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:45:08,205 WARN L188 SmtUtils]: Spent 733.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:45:08,490 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:45:09,007 WARN L188 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:45:09,415 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:45:09,930 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 07:45:10,392 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 07:45:11,130 WARN L188 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 07:45:11,516 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2019-09-10 07:45:11,980 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 07:45:14,612 WARN L188 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2019-09-10 07:45:15,115 WARN L188 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 85 [2019-09-10 07:45:15,792 WARN L188 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 07:45:16,336 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2019-09-10 07:45:16,766 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:45:17,091 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:45:17,559 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2019-09-10 07:45:17,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:45:17,563 INFO L93 Difference]: Finished difference Result 94883 states and 125275 transitions. [2019-09-10 07:45:17,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 333 states. [2019-09-10 07:45:17,563 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 115 [2019-09-10 07:45:17,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:45:17,651 INFO L225 Difference]: With dead ends: 94883 [2019-09-10 07:45:17,652 INFO L226 Difference]: Without dead ends: 94883 [2019-09-10 07:45:17,656 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 576 GetRequests, 195 SyntacticMatches, 17 SemanticMatches, 364 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55990 ImplicationChecksByTransitivity, 185.9s TimeCoverageRelationStatistics Valid=15501, Invalid=118089, Unknown=0, NotChecked=0, Total=133590 [2019-09-10 07:45:17,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94883 states. [2019-09-10 07:45:18,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94883 to 25061. [2019-09-10 07:45:18,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25061 states. [2019-09-10 07:45:18,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25061 states to 25061 states and 33501 transitions. [2019-09-10 07:45:18,091 INFO L78 Accepts]: Start accepts. Automaton has 25061 states and 33501 transitions. Word has length 115 [2019-09-10 07:45:18,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:45:18,091 INFO L475 AbstractCegarLoop]: Abstraction has 25061 states and 33501 transitions. [2019-09-10 07:45:18,092 INFO L476 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-09-10 07:45:18,092 INFO L276 IsEmpty]: Start isEmpty. Operand 25061 states and 33501 transitions. [2019-09-10 07:45:18,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-09-10 07:45:18,098 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:45:18,098 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:45:18,098 INFO L418 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:45:18,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:45:18,099 INFO L82 PathProgramCache]: Analyzing trace with hash 989996473, now seen corresponding path program 2 times [2019-09-10 07:45:18,099 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:45:18,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:45:18,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:45:18,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:45:18,100 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:45:18,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:45:18,534 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 23 proven. 67 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:45:18,534 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:45:18,534 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:45:18,534 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-10 07:45:18,534 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 07:45:18,535 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:45:18,535 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:45:18,546 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-10 07:45:18,547 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-09-10 07:45:18,661 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-09-10 07:45:18,661 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-10 07:45:18,663 INFO L256 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 47 conjunts are in the unsatisfiable core [2019-09-10 07:45:18,665 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:45:19,452 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:19,452 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:19,453 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:19,724 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2019-09-10 07:45:20,030 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:20,342 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2019-09-10 07:45:20,670 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 32 [2019-09-10 07:45:20,671 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:20,945 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 43 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:45:20,945 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:45:21,579 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:21,580 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:21,580 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:21,581 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:21,581 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:21,581 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:21,582 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:21,582 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:21,582 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:21,583 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:21,583 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:21,823 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 32 [2019-09-10 07:45:23,119 WARN L188 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-10 07:45:23,511 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-09-10 07:45:24,092 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-09-10 07:45:24,484 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-09-10 07:45:25,005 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2019-09-10 07:45:25,009 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-09-10 07:45:25,009 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-09-10 07:45:25,010 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-09-10 07:45:25,010 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-09-10 07:45:25,709 WARN L188 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2019-09-10 07:45:26,057 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 51 [2019-09-10 07:45:26,432 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2019-09-10 07:45:26,781 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 13 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (10)] Exception during sending of exit command (exit): Broken pipe [2019-09-10 07:45:26,794 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:45:26,794 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 23, 22] total 61 [2019-09-10 07:45:26,794 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:45:26,796 INFO L454 AbstractCegarLoop]: Interpolant automaton has 41 states [2019-09-10 07:45:26,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2019-09-10 07:45:26,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=3387, Unknown=0, NotChecked=0, Total=3660 [2019-09-10 07:45:26,797 INFO L87 Difference]: Start difference. First operand 25061 states and 33501 transitions. Second operand 41 states. [2019-09-10 07:45:32,329 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 47 [2019-09-10 07:45:32,683 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2019-09-10 07:45:32,992 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2019-09-10 07:45:33,306 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2019-09-10 07:45:33,765 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 50 [2019-09-10 07:45:34,166 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2019-09-10 07:45:34,542 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2019-09-10 07:45:34,912 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 45 [2019-09-10 07:45:35,224 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-09-10 07:45:36,262 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2019-09-10 07:45:36,697 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-09-10 07:45:37,037 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 49 [2019-09-10 07:45:37,870 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 43 [2019-09-10 07:45:38,260 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:45:38,475 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-10 07:45:39,013 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2019-09-10 07:45:39,391 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 49 [2019-09-10 07:45:39,615 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 45 [2019-09-10 07:45:40,143 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 49 [2019-09-10 07:45:40,358 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 43 [2019-09-10 07:45:40,587 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2019-09-10 07:45:41,591 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-09-10 07:45:51,998 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 47 [2019-09-10 07:45:52,302 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-09-10 07:45:52,554 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 44 [2019-09-10 07:45:52,984 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-09-10 07:45:53,798 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 49 [2019-09-10 07:45:54,497 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 49 [2019-09-10 07:45:54,777 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2019-09-10 07:45:55,379 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 49 [2019-09-10 07:45:55,888 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2019-09-10 07:45:56,321 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-10 07:45:56,646 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2019-09-10 07:45:58,237 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2019-09-10 07:45:59,154 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2019-09-10 07:45:59,989 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 45 [2019-09-10 07:46:00,700 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 50 [2019-09-10 07:46:10,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:46:10,949 INFO L93 Difference]: Finished difference Result 142423 states and 189285 transitions. [2019-09-10 07:46:10,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 258 states. [2019-09-10 07:46:10,950 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 116 [2019-09-10 07:46:10,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:46:11,085 INFO L225 Difference]: With dead ends: 142423 [2019-09-10 07:46:11,085 INFO L226 Difference]: Without dead ends: 142423 [2019-09-10 07:46:11,089 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 186 SyntacticMatches, 6 SemanticMatches, 312 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33036 ImplicationChecksByTransitivity, 40.9s TimeCoverageRelationStatistics Valid=10133, Invalid=88149, Unknown=0, NotChecked=0, Total=98282 [2019-09-10 07:46:11,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142423 states. [2019-09-10 07:46:12,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142423 to 84943. [2019-09-10 07:46:12,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84943 states. [2019-09-10 07:46:12,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84943 states to 84943 states and 114434 transitions. [2019-09-10 07:46:12,395 INFO L78 Accepts]: Start accepts. Automaton has 84943 states and 114434 transitions. Word has length 116 [2019-09-10 07:46:12,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:46:12,396 INFO L475 AbstractCegarLoop]: Abstraction has 84943 states and 114434 transitions. [2019-09-10 07:46:12,396 INFO L476 AbstractCegarLoop]: Interpolant automaton has 41 states. [2019-09-10 07:46:12,396 INFO L276 IsEmpty]: Start isEmpty. Operand 84943 states and 114434 transitions. [2019-09-10 07:46:12,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-09-10 07:46:12,403 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:46:12,403 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:46:12,403 INFO L418 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:46:12,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:46:12,403 INFO L82 PathProgramCache]: Analyzing trace with hash -107333172, now seen corresponding path program 1 times [2019-09-10 07:46:12,403 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:46:12,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:46:12,404 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-10 07:46:12,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:46:12,405 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:46:12,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:46:12,717 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 32 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:46:12,718 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:46:12,718 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:46:12,718 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 117 with the following transitions: [2019-09-10 07:46:12,718 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [53], [56], [61], [64], [67], [69], [71], [74], [77], [82], [84], [87], [90], [93], [95], [97], [100], [107], [109], [112], [113], [115], [124], [127], [131], [142], [145], [148], [150], [158], [161], [163], [167], [170], [173], [175], [183], [186], [192], [194], [197], [200], [202], [228], [229], [233], [234], [235] [2019-09-10 07:46:12,719 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:46:12,719 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:46:12,725 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:46:12,882 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:46:12,882 INFO L272 AbstractInterpreter]: Visited 66 different actions 507 times. Merged at 43 different actions 378 times. Widened at 13 different actions 55 times. Performed 1630 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1630 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 58 fixpoints after 16 different actions. Largest state had 87 variables. [2019-09-10 07:46:12,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:46:12,882 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:46:12,882 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:46:12,883 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:46:12,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:46:12,894 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:46:12,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:46:12,982 INFO L256 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 38 conjunts are in the unsatisfiable core [2019-09-10 07:46:12,984 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:46:13,648 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:13,955 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 22 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:46:13,955 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:46:14,701 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:15,047 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:15,048 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:15,048 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:15,048 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:15,049 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:15,049 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:15,050 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:15,050 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:15,051 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:15,051 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:15,051 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:15,052 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:15,052 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:15,052 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:15,053 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:15,328 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 22 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:46:15,332 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:46:15,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21, 19] total 54 [2019-09-10 07:46:15,332 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:46:15,333 INFO L454 AbstractCegarLoop]: Interpolant automaton has 37 states [2019-09-10 07:46:15,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2019-09-10 07:46:15,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=2647, Unknown=0, NotChecked=0, Total=2862 [2019-09-10 07:46:15,333 INFO L87 Difference]: Start difference. First operand 84943 states and 114434 transitions. Second operand 37 states. [2019-09-10 07:46:17,810 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2019-09-10 07:46:19,092 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-09-10 07:46:19,393 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-09-10 07:46:19,865 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-09-10 07:46:20,631 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-09-10 07:46:21,296 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-09-10 07:46:22,446 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-09-10 07:46:27,611 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-09-10 07:46:28,449 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2019-09-10 07:46:29,593 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2019-09-10 07:46:30,131 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2019-09-10 07:46:31,533 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-10 07:46:31,770 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2019-09-10 07:46:32,775 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-09-10 07:46:33,119 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-09-10 07:46:34,059 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-09-10 07:46:34,794 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2019-09-10 07:46:35,798 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2019-09-10 07:46:37,410 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2019-09-10 07:46:38,661 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-09-10 07:46:39,017 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 42 [2019-09-10 07:46:39,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:46:39,177 INFO L93 Difference]: Finished difference Result 170533 states and 226574 transitions. [2019-09-10 07:46:39,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2019-09-10 07:46:39,178 INFO L78 Accepts]: Start accepts. Automaton has 37 states. Word has length 116 [2019-09-10 07:46:39,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:46:39,354 INFO L225 Difference]: With dead ends: 170533 [2019-09-10 07:46:39,354 INFO L226 Difference]: Without dead ends: 170533 [2019-09-10 07:46:39,356 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 195 SyntacticMatches, 2 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15394 ImplicationChecksByTransitivity, 20.1s TimeCoverageRelationStatistics Valid=4714, Invalid=42158, Unknown=0, NotChecked=0, Total=46872 [2019-09-10 07:46:39,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170533 states. [2019-09-10 07:46:40,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170533 to 112555. [2019-09-10 07:46:40,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112555 states. [2019-09-10 07:46:40,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112555 states to 112555 states and 151748 transitions. [2019-09-10 07:46:40,539 INFO L78 Accepts]: Start accepts. Automaton has 112555 states and 151748 transitions. Word has length 116 [2019-09-10 07:46:40,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:46:40,540 INFO L475 AbstractCegarLoop]: Abstraction has 112555 states and 151748 transitions. [2019-09-10 07:46:40,540 INFO L476 AbstractCegarLoop]: Interpolant automaton has 37 states. [2019-09-10 07:46:40,540 INFO L276 IsEmpty]: Start isEmpty. Operand 112555 states and 151748 transitions. [2019-09-10 07:46:40,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2019-09-10 07:46:40,545 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:46:40,546 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:46:40,546 INFO L418 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:46:40,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:46:40,546 INFO L82 PathProgramCache]: Analyzing trace with hash -1044802570, now seen corresponding path program 1 times [2019-09-10 07:46:40,546 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:46:40,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:46:40,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:46:40,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:46:40,547 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:46:40,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:46:42,762 WARN L188 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 19 DAG size of output: 16 [2019-09-10 07:46:44,031 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 13 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:46:44,031 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:46:44,031 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:46:44,032 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 117 with the following transitions: [2019-09-10 07:46:44,032 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [53], [56], [61], [64], [69], [71], [74], [77], [80], [82], [84], [87], [90], [93], [95], [97], [100], [107], [109], [112], [113], [115], [124], [127], [131], [133], [136], [142], [145], [148], [150], [167], [170], [173], [175], [183], [186], [188], [192], [194], [197], [200], [202], [228], [229], [233], [234], [235] [2019-09-10 07:46:44,033 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:46:44,033 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:46:44,038 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:46:44,228 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:46:44,228 INFO L272 AbstractInterpreter]: Visited 66 different actions 560 times. Merged at 43 different actions 423 times. Widened at 14 different actions 76 times. Performed 1709 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1709 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 64 fixpoints after 15 different actions. Largest state had 87 variables. [2019-09-10 07:46:44,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:46:44,231 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:46:44,231 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:46:44,231 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:46:44,261 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:46:44,261 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:46:44,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:46:44,380 INFO L256 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 39 conjunts are in the unsatisfiable core [2019-09-10 07:46:44,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:46:44,779 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:45,205 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:45,441 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:45,962 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 13 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:46:45,962 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:46:46,412 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:47,151 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:47,690 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 41 [2019-09-10 07:46:47,691 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:47,692 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:47,692 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:47,692 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:47,693 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:47,693 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:47,693 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:47,694 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:47,694 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:47,694 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:47,695 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:47,695 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:47,695 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:47,696 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:47,696 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:48,046 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 37 [2019-09-10 07:46:49,402 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-10 07:46:49,678 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 13 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:46:49,681 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:46:49,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 22, 23] total 69 [2019-09-10 07:46:49,682 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:46:49,682 INFO L454 AbstractCegarLoop]: Interpolant automaton has 48 states [2019-09-10 07:46:49,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2019-09-10 07:46:49,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=4392, Unknown=0, NotChecked=0, Total=4692 [2019-09-10 07:46:49,684 INFO L87 Difference]: Start difference. First operand 112555 states and 151748 transitions. Second operand 48 states. [2019-09-10 07:46:50,013 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 63 [2019-09-10 07:46:51,696 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 40 [2019-09-10 07:46:52,047 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 56 [2019-09-10 07:46:52,405 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2019-09-10 07:46:52,676 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 48 [2019-09-10 07:46:52,955 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 48 [2019-09-10 07:46:53,201 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-09-10 07:46:53,493 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 50 [2019-09-10 07:46:53,805 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 54 [2019-09-10 07:46:54,248 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 47 [2019-09-10 07:46:54,646 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 34 [2019-09-10 07:46:56,774 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2019-09-10 07:46:57,113 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 41 [2019-09-10 07:46:57,714 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 45 [2019-09-10 07:46:58,302 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2019-09-10 07:46:58,507 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 40 [2019-09-10 07:46:58,878 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2019-09-10 07:46:59,094 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 43 [2019-09-10 07:46:59,317 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 45 [2019-09-10 07:46:59,518 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 40 [2019-09-10 07:46:59,851 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2019-09-10 07:47:00,354 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 38 [2019-09-10 07:47:00,697 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2019-09-10 07:47:01,098 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2019-09-10 07:47:01,363 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 44 [2019-09-10 07:47:01,919 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2019-09-10 07:47:02,174 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 47 [2019-09-10 07:47:02,616 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 52 [2019-09-10 07:47:02,999 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2019-09-10 07:47:03,219 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2019-09-10 07:47:03,500 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 42 [2019-09-10 07:47:03,912 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2019-09-10 07:47:04,359 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 53 [2019-09-10 07:47:04,711 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 43 [2019-09-10 07:47:04,969 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 47 [2019-09-10 07:47:05,187 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 44 [2019-09-10 07:47:05,868 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 44 [2019-09-10 07:47:06,064 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2019-09-10 07:47:06,448 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 35 [2019-09-10 07:47:06,797 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 46 [2019-09-10 07:47:07,496 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 45 [2019-09-10 07:47:07,750 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2019-09-10 07:47:08,918 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 45 [2019-09-10 07:47:09,212 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2019-09-10 07:47:09,601 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 32 [2019-09-10 07:47:09,921 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 40 [2019-09-10 07:47:10,432 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2019-09-10 07:47:10,804 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2019-09-10 07:47:11,364 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 42 [2019-09-10 07:47:11,786 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 52 [2019-09-10 07:47:13,099 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 37 [2019-09-10 07:47:16,406 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2019-09-10 07:47:17,053 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 44 [2019-09-10 07:47:19,224 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 40 [2019-09-10 07:47:20,086 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 49 [2019-09-10 07:47:20,676 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2019-09-10 07:47:21,574 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2019-09-10 07:47:21,786 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2019-09-10 07:47:22,068 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 41 [2019-09-10 07:47:23,912 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2019-09-10 07:47:24,239 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2019-09-10 07:47:24,448 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 40 [2019-09-10 07:47:24,933 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 42 [2019-09-10 07:47:25,150 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 43 [2019-09-10 07:47:26,260 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 50 [2019-09-10 07:47:26,495 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 45 [2019-09-10 07:47:26,673 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2019-09-10 07:47:27,108 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 47 [2019-09-10 07:47:27,861 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2019-09-10 07:47:28,050 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2019-09-10 07:47:28,422 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 50 [2019-09-10 07:47:28,620 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 41 [2019-09-10 07:47:28,843 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 42 [2019-09-10 07:47:29,528 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2019-09-10 07:47:29,892 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2019-09-10 07:47:30,225 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2019-09-10 07:47:30,722 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-10 07:47:31,572 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2019-09-10 07:47:31,872 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-10 07:47:32,654 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-10 07:47:33,139 WARN L188 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-10 07:47:33,640 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 07:47:33,949 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 07:47:34,152 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2019-09-10 07:47:34,375 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2019-09-10 07:47:34,814 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2019-09-10 07:47:35,064 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2019-09-10 07:47:35,316 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 47 [2019-09-10 07:47:35,729 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 07:47:35,951 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2019-09-10 07:47:36,319 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2019-09-10 07:47:36,840 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-10 07:47:37,165 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-10 07:47:37,736 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2019-09-10 07:47:37,946 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2019-09-10 07:47:38,300 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2019-09-10 07:47:38,484 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2019-09-10 07:47:38,950 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2019-09-10 07:47:39,323 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 40 [2019-09-10 07:47:40,016 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-10 07:47:40,418 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2019-09-10 07:47:40,648 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-10 07:47:40,980 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2019-09-10 07:47:41,487 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 45 [2019-09-10 07:47:41,964 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-10 07:47:44,419 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47