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+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 07:34:49,147 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 07:34:49,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 07:34:49,161 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-10 07:34:49,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 07:34:49,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 07:34:49,190 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 07:34:49,191 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 07:34:49,192 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 07:34:49,192 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 07:34:49,193 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 07:34:49,193 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 07:34:49,193 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 07:34:49,194 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 07:34:49,195 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 07:34:49,196 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 07:34:49,210 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 07:34:49,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 07:34:49,211 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 07:34:49,211 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 07:34:49,212 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 07:34:49,212 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 07:34:49,212 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 07:34:49,212 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 07:34:49,213 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 07:34:49,213 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 07:34:49,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 07:34:49,214 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 07:34:49,214 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 07:34:49,214 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 07:34:49,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 07:34:49,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 07:34:49,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 07:34:49,215 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 07:34:49,215 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 07:34:49,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 07:34:49,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 07:34:49,216 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 07:34:49,216 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 07:34:49,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 07:34:49,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 07:34:49,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 07:34:49,217 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 07:34:49,217 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 07:34:49,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 07:34:49,218 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 07:34:49,246 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 07:34:49,264 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 07:34:49,267 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 07:34:49,271 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 07:34:49,271 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 07:34:49,272 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2019-09-10 07:34:49,349 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/282bad51c/13993919517c4698bd85e7b9f65df8b0/FLAG87f16ddc4 [2019-09-10 07:34:49,827 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 07:34:49,828 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2019-09-10 07:34:49,849 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/282bad51c/13993919517c4698bd85e7b9f65df8b0/FLAG87f16ddc4 [2019-09-10 07:34:50,138 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/282bad51c/13993919517c4698bd85e7b9f65df8b0 [2019-09-10 07:34:50,146 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 07:34:50,148 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 07:34:50,149 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 07:34:50,149 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 07:34:50,152 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 07:34:50,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 07:34:50" (1/1) ... [2019-09-10 07:34:50,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d4e3ba5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:34:50, skipping insertion in model container [2019-09-10 07:34:50,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 07:34:50" (1/1) ... [2019-09-10 07:34:50,164 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 07:34:50,218 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 07:34:50,676 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 07:34:50,694 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 07:34:50,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 07:34:50,858 INFO L192 MainTranslator]: Completed translation [2019-09-10 07:34:50,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:34:50 WrapperNode [2019-09-10 07:34:50,858 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 07:34:50,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 07:34:50,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 07:34:50,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 07:34:50,870 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:34:50" (1/1) ... [2019-09-10 07:34:50,870 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:34:50" (1/1) ... [2019-09-10 07:34:50,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:34:50" (1/1) ... [2019-09-10 07:34:50,888 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:34:50" (1/1) ... [2019-09-10 07:34:50,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:34:50" (1/1) ... [2019-09-10 07:34:50,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:34:50" (1/1) ... [2019-09-10 07:34:50,930 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:34:50" (1/1) ... [2019-09-10 07:34:50,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 07:34:50,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 07:34:50,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 07:34:50,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 07:34:50,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:34:50" (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 07:34:51,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 07:34:51,043 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 07:34:51,043 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 07:34:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 07:34:51,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-10 07:34:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-10 07:34:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-09-10 07:34:51,044 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-10 07:34:51,045 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 07:34:51,045 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-10 07:34:51,045 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-10 07:34:51,046 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-10 07:34:51,046 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-10 07:34:51,047 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-10 07:34:51,047 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-10 07:34:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-10 07:34:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 07:34:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 07:34:51,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 07:34:52,414 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 07:34:52,415 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 07:34:52,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 07:34:52 BoogieIcfgContainer [2019-09-10 07:34:52,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 07:34:52,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 07:34:52,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 07:34:52,421 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 07:34:52,421 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 07:34:50" (1/3) ... [2019-09-10 07:34:52,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244e884d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 07:34:52, skipping insertion in model container [2019-09-10 07:34:52,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 07:34:50" (2/3) ... [2019-09-10 07:34:52,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@244e884d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 07:34:52, skipping insertion in model container [2019-09-10 07:34:52,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 07:34:52" (3/3) ... [2019-09-10 07:34:52,429 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.UNBOUNDED.pals.c.v+lhb-reducer.c [2019-09-10 07:34:52,441 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 07:34:52,463 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-09-10 07:34:52,483 INFO L252 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-09-10 07:34:52,516 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 07:34:52,517 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 07:34:52,517 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 07:34:52,517 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 07:34:52,517 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 07:34:52,519 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 07:34:52,519 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 07:34:52,519 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 07:34:52,548 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2019-09-10 07:34:52,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-09-10 07:34:52,562 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:52,563 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:52,565 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:52,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:52,570 INFO L82 PathProgramCache]: Analyzing trace with hash 2131533676, now seen corresponding path program 1 times [2019-09-10 07:34:52,572 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:52,622 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:52,622 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:52,623 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:52,623 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:52,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:53,007 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 07:34:53,009 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:53,009 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:34:53,010 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:53,015 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:34:53,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:34:53,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:34:53,033 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 5 states. [2019-09-10 07:34:53,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:53,322 INFO L93 Difference]: Finished difference Result 190 states and 305 transitions. [2019-09-10 07:34:53,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:34:53,323 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2019-09-10 07:34:53,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:53,336 INFO L225 Difference]: With dead ends: 190 [2019-09-10 07:34:53,336 INFO L226 Difference]: Without dead ends: 178 [2019-09-10 07:34:53,338 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 07:34:53,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2019-09-10 07:34:53,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2019-09-10 07:34:53,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2019-09-10 07:34:53,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 220 transitions. [2019-09-10 07:34:53,386 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 220 transitions. Word has length 50 [2019-09-10 07:34:53,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:53,386 INFO L475 AbstractCegarLoop]: Abstraction has 178 states and 220 transitions. [2019-09-10 07:34:53,387 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:34:53,387 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 220 transitions. [2019-09-10 07:34:53,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-10 07:34:53,389 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:53,389 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:53,390 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:53,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:53,390 INFO L82 PathProgramCache]: Analyzing trace with hash -808666982, now seen corresponding path program 1 times [2019-09-10 07:34:53,391 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:53,392 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:53,393 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:53,393 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:53,393 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:53,524 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 07:34:53,524 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:53,524 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:34:53,524 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:53,526 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:34:53,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:34:53,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:34:53,527 INFO L87 Difference]: Start difference. First operand 178 states and 220 transitions. Second operand 5 states. [2019-09-10 07:34:53,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:53,713 INFO L93 Difference]: Finished difference Result 168 states and 207 transitions. [2019-09-10 07:34:53,714 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:34:53,714 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-09-10 07:34:53,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:53,716 INFO L225 Difference]: With dead ends: 168 [2019-09-10 07:34:53,717 INFO L226 Difference]: Without dead ends: 168 [2019-09-10 07:34:53,718 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:34:53,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2019-09-10 07:34:53,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2019-09-10 07:34:53,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2019-09-10 07:34:53,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 207 transitions. [2019-09-10 07:34:53,730 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 207 transitions. Word has length 51 [2019-09-10 07:34:53,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:53,730 INFO L475 AbstractCegarLoop]: Abstraction has 168 states and 207 transitions. [2019-09-10 07:34:53,730 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:34:53,731 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 207 transitions. [2019-09-10 07:34:53,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-10 07:34:53,733 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:53,733 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:53,733 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:53,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:53,734 INFO L82 PathProgramCache]: Analyzing trace with hash -215759242, now seen corresponding path program 1 times [2019-09-10 07:34:53,734 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:53,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:53,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:53,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:53,736 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:53,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:53,935 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 07:34:53,936 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:53,936 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:34:53,936 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:53,937 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:34:53,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:34:53,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:34:53,938 INFO L87 Difference]: Start difference. First operand 168 states and 207 transitions. Second operand 5 states. [2019-09-10 07:34:54,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:54,094 INFO L93 Difference]: Finished difference Result 160 states and 197 transitions. [2019-09-10 07:34:54,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:34:54,096 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2019-09-10 07:34:54,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:54,099 INFO L225 Difference]: With dead ends: 160 [2019-09-10 07:34:54,100 INFO L226 Difference]: Without dead ends: 160 [2019-09-10 07:34:54,101 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 07:34:54,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2019-09-10 07:34:54,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2019-09-10 07:34:54,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-09-10 07:34:54,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 197 transitions. [2019-09-10 07:34:54,120 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 197 transitions. Word has length 52 [2019-09-10 07:34:54,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:54,121 INFO L475 AbstractCegarLoop]: Abstraction has 160 states and 197 transitions. [2019-09-10 07:34:54,121 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:34:54,121 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 197 transitions. [2019-09-10 07:34:54,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-09-10 07:34:54,126 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:54,127 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:54,130 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:54,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:54,131 INFO L82 PathProgramCache]: Analyzing trace with hash 2143272380, now seen corresponding path program 1 times [2019-09-10 07:34:54,131 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:54,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:54,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:54,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:54,135 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:54,393 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 07:34:54,393 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:54,393 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 07:34:54,393 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:54,394 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 07:34:54,394 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 07:34:54,394 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-10 07:34:54,395 INFO L87 Difference]: Start difference. First operand 160 states and 197 transitions. Second operand 9 states. [2019-09-10 07:34:55,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:55,188 INFO L93 Difference]: Finished difference Result 330 states and 433 transitions. [2019-09-10 07:34:55,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 07:34:55,188 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2019-09-10 07:34:55,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:55,191 INFO L225 Difference]: With dead ends: 330 [2019-09-10 07:34:55,191 INFO L226 Difference]: Without dead ends: 330 [2019-09-10 07:34:55,192 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2019-09-10 07:34:55,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2019-09-10 07:34:55,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 160. [2019-09-10 07:34:55,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-09-10 07:34:55,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 196 transitions. [2019-09-10 07:34:55,203 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 196 transitions. Word has length 53 [2019-09-10 07:34:55,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:55,204 INFO L475 AbstractCegarLoop]: Abstraction has 160 states and 196 transitions. [2019-09-10 07:34:55,204 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 07:34:55,204 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 196 transitions. [2019-09-10 07:34:55,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-09-10 07:34:55,206 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:55,206 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:55,206 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:55,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:55,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1585839580, now seen corresponding path program 1 times [2019-09-10 07:34:55,207 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:55,208 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:55,208 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:55,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:55,209 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:55,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:55,332 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 07:34:55,332 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:55,332 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 07:34:55,333 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:55,333 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 07:34:55,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 07:34:55,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-10 07:34:55,334 INFO L87 Difference]: Start difference. First operand 160 states and 196 transitions. Second operand 9 states. [2019-09-10 07:34:56,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:56,098 INFO L93 Difference]: Finished difference Result 334 states and 438 transitions. [2019-09-10 07:34:56,105 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 07:34:56,105 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 53 [2019-09-10 07:34:56,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:56,108 INFO L225 Difference]: With dead ends: 334 [2019-09-10 07:34:56,108 INFO L226 Difference]: Without dead ends: 334 [2019-09-10 07:34:56,109 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2019-09-10 07:34:56,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2019-09-10 07:34:56,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 160. [2019-09-10 07:34:56,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-09-10 07:34:56,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 195 transitions. [2019-09-10 07:34:56,117 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 195 transitions. Word has length 53 [2019-09-10 07:34:56,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:56,117 INFO L475 AbstractCegarLoop]: Abstraction has 160 states and 195 transitions. [2019-09-10 07:34:56,117 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 07:34:56,118 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 195 transitions. [2019-09-10 07:34:56,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-09-10 07:34:56,119 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:56,119 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:56,120 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:56,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:56,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1953897721, now seen corresponding path program 1 times [2019-09-10 07:34:56,120 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:56,121 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:56,122 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:56,122 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:56,122 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:56,251 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 07:34:56,251 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:56,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-10 07:34:56,252 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:56,252 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-10 07:34:56,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-10 07:34:56,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-10 07:34:56,253 INFO L87 Difference]: Start difference. First operand 160 states and 195 transitions. Second operand 8 states. [2019-09-10 07:34:56,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:56,607 INFO L93 Difference]: Finished difference Result 232 states and 284 transitions. [2019-09-10 07:34:56,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-10 07:34:56,609 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 53 [2019-09-10 07:34:56,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:56,611 INFO L225 Difference]: With dead ends: 232 [2019-09-10 07:34:56,611 INFO L226 Difference]: Without dead ends: 232 [2019-09-10 07:34:56,612 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-09-10 07:34:56,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 232 states. [2019-09-10 07:34:56,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 232 to 160. [2019-09-10 07:34:56,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160 states. [2019-09-10 07:34:56,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 194 transitions. [2019-09-10 07:34:56,623 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 194 transitions. Word has length 53 [2019-09-10 07:34:56,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:56,623 INFO L475 AbstractCegarLoop]: Abstraction has 160 states and 194 transitions. [2019-09-10 07:34:56,624 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-10 07:34:56,624 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 194 transitions. [2019-09-10 07:34:56,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-10 07:34:56,629 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:56,629 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:56,630 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:56,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:56,635 INFO L82 PathProgramCache]: Analyzing trace with hash 136408186, now seen corresponding path program 1 times [2019-09-10 07:34:56,635 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:56,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:56,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:56,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:56,639 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:56,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:57,418 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 07:34:57,418 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:57,418 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-09-10 07:34:57,419 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:57,419 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-10 07:34:57,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-10 07:34:57,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2019-09-10 07:34:57,420 INFO L87 Difference]: Start difference. First operand 160 states and 194 transitions. Second operand 16 states. [2019-09-10 07:34:57,966 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-10 07:34:59,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:34:59,023 INFO L93 Difference]: Finished difference Result 285 states and 345 transitions. [2019-09-10 07:34:59,024 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-10 07:34:59,024 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 55 [2019-09-10 07:34:59,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:34:59,026 INFO L225 Difference]: With dead ends: 285 [2019-09-10 07:34:59,026 INFO L226 Difference]: Without dead ends: 285 [2019-09-10 07:34:59,028 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=194, Invalid=562, Unknown=0, NotChecked=0, Total=756 [2019-09-10 07:34:59,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2019-09-10 07:34:59,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 170. [2019-09-10 07:34:59,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2019-09-10 07:34:59,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 209 transitions. [2019-09-10 07:34:59,035 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 209 transitions. Word has length 55 [2019-09-10 07:34:59,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:34:59,037 INFO L475 AbstractCegarLoop]: Abstraction has 170 states and 209 transitions. [2019-09-10 07:34:59,038 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-10 07:34:59,038 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 209 transitions. [2019-09-10 07:34:59,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-10 07:34:59,040 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:34:59,040 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:34:59,041 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:34:59,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:34:59,042 INFO L82 PathProgramCache]: Analyzing trace with hash 740612440, now seen corresponding path program 1 times [2019-09-10 07:34:59,042 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:34:59,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:59,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:34:59,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:34:59,044 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:34:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:34:59,784 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 07:34:59,784 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:34:59,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-09-10 07:34:59,785 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:34:59,786 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-10 07:34:59,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-10 07:34:59,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2019-09-10 07:34:59,787 INFO L87 Difference]: Start difference. First operand 170 states and 209 transitions. Second operand 15 states. [2019-09-10 07:35:00,541 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2019-09-10 07:35:01,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:01,367 INFO L93 Difference]: Finished difference Result 323 states and 422 transitions. [2019-09-10 07:35:01,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-10 07:35:01,368 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 55 [2019-09-10 07:35:01,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:01,370 INFO L225 Difference]: With dead ends: 323 [2019-09-10 07:35:01,370 INFO L226 Difference]: Without dead ends: 323 [2019-09-10 07:35:01,371 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=178, Invalid=472, Unknown=0, NotChecked=0, Total=650 [2019-09-10 07:35:01,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 323 states. [2019-09-10 07:35:01,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 323 to 159. [2019-09-10 07:35:01,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-09-10 07:35:01,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 195 transitions. [2019-09-10 07:35:01,378 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 195 transitions. Word has length 55 [2019-09-10 07:35:01,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:01,380 INFO L475 AbstractCegarLoop]: Abstraction has 159 states and 195 transitions. [2019-09-10 07:35:01,380 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-10 07:35:01,380 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 195 transitions. [2019-09-10 07:35:01,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-10 07:35:01,381 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:01,381 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:01,382 INFO L418 AbstractCegarLoop]: === Iteration 9 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:01,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:01,382 INFO L82 PathProgramCache]: Analyzing trace with hash 1710260461, now seen corresponding path program 1 times [2019-09-10 07:35:01,382 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:01,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:01,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:01,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:01,384 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:01,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:01,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:35:01,499 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:01,499 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 07:35:01,499 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:01,500 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 07:35:01,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 07:35:01,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-10 07:35:01,500 INFO L87 Difference]: Start difference. First operand 159 states and 195 transitions. Second operand 9 states. [2019-09-10 07:35:02,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:02,206 INFO L93 Difference]: Finished difference Result 319 states and 417 transitions. [2019-09-10 07:35:02,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 07:35:02,206 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2019-09-10 07:35:02,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:02,208 INFO L225 Difference]: With dead ends: 319 [2019-09-10 07:35:02,208 INFO L226 Difference]: Without dead ends: 319 [2019-09-10 07:35:02,209 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2019-09-10 07:35:02,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2019-09-10 07:35:02,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 159. [2019-09-10 07:35:02,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-09-10 07:35:02,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 193 transitions. [2019-09-10 07:35:02,215 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 193 transitions. Word has length 56 [2019-09-10 07:35:02,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:02,216 INFO L475 AbstractCegarLoop]: Abstraction has 159 states and 193 transitions. [2019-09-10 07:35:02,216 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 07:35:02,216 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 193 transitions. [2019-09-10 07:35:02,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-10 07:35:02,217 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:02,217 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:02,217 INFO L418 AbstractCegarLoop]: === Iteration 10 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:02,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:02,218 INFO L82 PathProgramCache]: Analyzing trace with hash -2007948800, now seen corresponding path program 1 times [2019-09-10 07:35:02,218 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:02,220 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:02,221 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:02,221 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:02,221 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:02,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:02,355 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 07:35:02,356 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:02,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 07:35:02,356 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:02,359 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 07:35:02,360 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 07:35:02,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-10 07:35:02,361 INFO L87 Difference]: Start difference. First operand 159 states and 193 transitions. Second operand 9 states. [2019-09-10 07:35:02,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:02,888 INFO L93 Difference]: Finished difference Result 223 states and 278 transitions. [2019-09-10 07:35:02,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-10 07:35:02,889 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2019-09-10 07:35:02,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:02,891 INFO L225 Difference]: With dead ends: 223 [2019-09-10 07:35:02,891 INFO L226 Difference]: Without dead ends: 223 [2019-09-10 07:35:02,891 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2019-09-10 07:35:02,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2019-09-10 07:35:02,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 159. [2019-09-10 07:35:02,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 159 states. [2019-09-10 07:35:02,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 191 transitions. [2019-09-10 07:35:02,897 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 191 transitions. Word has length 56 [2019-09-10 07:35:02,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:02,897 INFO L475 AbstractCegarLoop]: Abstraction has 159 states and 191 transitions. [2019-09-10 07:35:02,898 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 07:35:02,898 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 191 transitions. [2019-09-10 07:35:02,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-10 07:35:02,899 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:02,899 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:02,899 INFO L418 AbstractCegarLoop]: === Iteration 11 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:02,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:02,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1518456221, now seen corresponding path program 1 times [2019-09-10 07:35:02,900 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:02,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:02,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:02,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:02,901 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:02,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:03,452 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 07:35:03,452 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:03,453 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-09-10 07:35:03,453 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:03,453 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-10 07:35:03,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-10 07:35:03,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-09-10 07:35:03,454 INFO L87 Difference]: Start difference. First operand 159 states and 191 transitions. Second operand 13 states. [2019-09-10 07:35:03,905 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 32 [2019-09-10 07:35:04,041 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 32 [2019-09-10 07:35:05,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:05,021 INFO L93 Difference]: Finished difference Result 583 states and 807 transitions. [2019-09-10 07:35:05,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-09-10 07:35:05,022 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 56 [2019-09-10 07:35:05,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:05,026 INFO L225 Difference]: With dead ends: 583 [2019-09-10 07:35:05,027 INFO L226 Difference]: Without dead ends: 583 [2019-09-10 07:35:05,027 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=166, Invalid=536, Unknown=0, NotChecked=0, Total=702 [2019-09-10 07:35:05,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583 states. [2019-09-10 07:35:05,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583 to 133. [2019-09-10 07:35:05,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2019-09-10 07:35:05,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 161 transitions. [2019-09-10 07:35:05,034 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 161 transitions. Word has length 56 [2019-09-10 07:35:05,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:05,034 INFO L475 AbstractCegarLoop]: Abstraction has 133 states and 161 transitions. [2019-09-10 07:35:05,034 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-10 07:35:05,034 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 161 transitions. [2019-09-10 07:35:05,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-10 07:35:05,035 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:05,035 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:05,036 INFO L418 AbstractCegarLoop]: === Iteration 12 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:05,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:05,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1716858446, now seen corresponding path program 1 times [2019-09-10 07:35:05,036 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:05,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:05,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:05,038 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:05,038 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:05,321 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 07:35:05,321 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:05,322 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-10 07:35:05,322 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:05,322 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-10 07:35:05,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-10 07:35:05,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2019-09-10 07:35:05,323 INFO L87 Difference]: Start difference. First operand 133 states and 161 transitions. Second operand 11 states. [2019-09-10 07:35:05,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:05,800 INFO L93 Difference]: Finished difference Result 242 states and 312 transitions. [2019-09-10 07:35:05,801 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 07:35:05,801 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 56 [2019-09-10 07:35:05,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:05,802 INFO L225 Difference]: With dead ends: 242 [2019-09-10 07:35:05,802 INFO L226 Difference]: Without dead ends: 242 [2019-09-10 07:35:05,803 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2019-09-10 07:35:05,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2019-09-10 07:35:05,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 129. [2019-09-10 07:35:05,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-09-10 07:35:05,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 156 transitions. [2019-09-10 07:35:05,809 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 156 transitions. Word has length 56 [2019-09-10 07:35:05,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:05,809 INFO L475 AbstractCegarLoop]: Abstraction has 129 states and 156 transitions. [2019-09-10 07:35:05,810 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-10 07:35:05,810 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 156 transitions. [2019-09-10 07:35:05,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-10 07:35:05,810 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:05,811 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:05,811 INFO L418 AbstractCegarLoop]: === Iteration 13 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:05,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:05,811 INFO L82 PathProgramCache]: Analyzing trace with hash 628872757, now seen corresponding path program 1 times [2019-09-10 07:35:05,811 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:05,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:05,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:05,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:05,813 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:06,032 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 07:35:06,034 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:06,034 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 07:35:06,034 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:06,035 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 07:35:06,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 07:35:06,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-09-10 07:35:06,038 INFO L87 Difference]: Start difference. First operand 129 states and 156 transitions. Second operand 10 states. [2019-09-10 07:35:06,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:06,916 INFO L93 Difference]: Finished difference Result 235 states and 305 transitions. [2019-09-10 07:35:06,917 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-10 07:35:06,917 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 57 [2019-09-10 07:35:06,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:06,919 INFO L225 Difference]: With dead ends: 235 [2019-09-10 07:35:06,919 INFO L226 Difference]: Without dead ends: 235 [2019-09-10 07:35:06,920 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=241, Unknown=0, NotChecked=0, Total=342 [2019-09-10 07:35:06,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2019-09-10 07:35:06,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 129. [2019-09-10 07:35:06,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-09-10 07:35:06,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 155 transitions. [2019-09-10 07:35:06,925 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 155 transitions. Word has length 57 [2019-09-10 07:35:06,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:06,925 INFO L475 AbstractCegarLoop]: Abstraction has 129 states and 155 transitions. [2019-09-10 07:35:06,925 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 07:35:06,926 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 155 transitions. [2019-09-10 07:35:06,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-09-10 07:35:06,926 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:06,926 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:06,927 INFO L418 AbstractCegarLoop]: === Iteration 14 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:06,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:06,927 INFO L82 PathProgramCache]: Analyzing trace with hash -50398382, now seen corresponding path program 1 times [2019-09-10 07:35:06,927 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:06,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:06,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:06,929 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:06,929 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:06,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:07,416 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 07:35:07,417 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:07,417 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-09-10 07:35:07,417 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:07,418 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-10 07:35:07,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-10 07:35:07,420 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2019-09-10 07:35:07,420 INFO L87 Difference]: Start difference. First operand 129 states and 155 transitions. Second operand 18 states. [2019-09-10 07:35:07,611 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-10 07:35:09,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:09,547 INFO L93 Difference]: Finished difference Result 423 states and 560 transitions. [2019-09-10 07:35:09,547 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-09-10 07:35:09,547 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 58 [2019-09-10 07:35:09,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:09,549 INFO L225 Difference]: With dead ends: 423 [2019-09-10 07:35:09,549 INFO L226 Difference]: Without dead ends: 423 [2019-09-10 07:35:09,551 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=192, Invalid=800, Unknown=0, NotChecked=0, Total=992 [2019-09-10 07:35:09,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2019-09-10 07:35:09,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 140. [2019-09-10 07:35:09,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-09-10 07:35:09,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 169 transitions. [2019-09-10 07:35:09,557 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 169 transitions. Word has length 58 [2019-09-10 07:35:09,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:09,557 INFO L475 AbstractCegarLoop]: Abstraction has 140 states and 169 transitions. [2019-09-10 07:35:09,557 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-10 07:35:09,557 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 169 transitions. [2019-09-10 07:35:09,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-10 07:35:09,558 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:09,558 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:09,558 INFO L418 AbstractCegarLoop]: === Iteration 15 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:09,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:09,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1958291018, now seen corresponding path program 1 times [2019-09-10 07:35:09,559 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:09,560 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:09,560 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:09,561 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:09,561 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:09,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:09,883 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 07:35:09,883 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:09,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2019-09-10 07:35:09,883 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:09,884 INFO L454 AbstractCegarLoop]: Interpolant automaton has 11 states [2019-09-10 07:35:09,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2019-09-10 07:35:09,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2019-09-10 07:35:09,884 INFO L87 Difference]: Start difference. First operand 140 states and 169 transitions. Second operand 11 states. [2019-09-10 07:35:10,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:10,575 INFO L93 Difference]: Finished difference Result 376 states and 512 transitions. [2019-09-10 07:35:10,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-10 07:35:10,576 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 59 [2019-09-10 07:35:10,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:10,578 INFO L225 Difference]: With dead ends: 376 [2019-09-10 07:35:10,578 INFO L226 Difference]: Without dead ends: 376 [2019-09-10 07:35:10,579 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2019-09-10 07:35:10,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states. [2019-09-10 07:35:10,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 123. [2019-09-10 07:35:10,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-09-10 07:35:10,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 149 transitions. [2019-09-10 07:35:10,586 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 149 transitions. Word has length 59 [2019-09-10 07:35:10,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:10,587 INFO L475 AbstractCegarLoop]: Abstraction has 123 states and 149 transitions. [2019-09-10 07:35:10,587 INFO L476 AbstractCegarLoop]: Interpolant automaton has 11 states. [2019-09-10 07:35:10,587 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 149 transitions. [2019-09-10 07:35:10,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-10 07:35:10,588 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:10,588 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:10,588 INFO L418 AbstractCegarLoop]: === Iteration 16 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:10,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:10,589 INFO L82 PathProgramCache]: Analyzing trace with hash 435613388, now seen corresponding path program 1 times [2019-09-10 07:35:10,589 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:10,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:10,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:10,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:10,590 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:10,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:11,508 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 07:35:11,508 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:11,508 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-09-10 07:35:11,508 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:11,509 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-10 07:35:11,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-10 07:35:11,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2019-09-10 07:35:11,509 INFO L87 Difference]: Start difference. First operand 123 states and 149 transitions. Second operand 18 states. [2019-09-10 07:35:12,215 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-10 07:35:12,384 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2019-09-10 07:35:12,549 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2019-09-10 07:35:12,694 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2019-09-10 07:35:12,862 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-09-10 07:35:14,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:14,165 INFO L93 Difference]: Finished difference Result 341 states and 455 transitions. [2019-09-10 07:35:14,170 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-09-10 07:35:14,171 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 59 [2019-09-10 07:35:14,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:14,173 INFO L225 Difference]: With dead ends: 341 [2019-09-10 07:35:14,173 INFO L226 Difference]: Without dead ends: 341 [2019-09-10 07:35:14,173 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 174 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=260, Invalid=796, Unknown=0, NotChecked=0, Total=1056 [2019-09-10 07:35:14,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2019-09-10 07:35:14,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 123. [2019-09-10 07:35:14,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 123 states. [2019-09-10 07:35:14,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 148 transitions. [2019-09-10 07:35:14,178 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 148 transitions. Word has length 59 [2019-09-10 07:35:14,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:14,179 INFO L475 AbstractCegarLoop]: Abstraction has 123 states and 148 transitions. [2019-09-10 07:35:14,179 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-10 07:35:14,179 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 148 transitions. [2019-09-10 07:35:14,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-10 07:35:14,180 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:14,180 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:14,180 INFO L418 AbstractCegarLoop]: === Iteration 17 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:14,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:14,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1550714451, now seen corresponding path program 1 times [2019-09-10 07:35:14,181 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:14,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:14,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:14,182 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:14,182 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:14,482 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 07:35:14,483 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:14,483 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-10 07:35:14,483 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:14,484 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-10 07:35:14,484 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-10 07:35:14,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2019-09-10 07:35:14,484 INFO L87 Difference]: Start difference. First operand 123 states and 148 transitions. Second operand 10 states. [2019-09-10 07:35:14,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:14,854 INFO L93 Difference]: Finished difference Result 267 states and 358 transitions. [2019-09-10 07:35:14,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-10 07:35:14,855 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 60 [2019-09-10 07:35:14,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:14,857 INFO L225 Difference]: With dead ends: 267 [2019-09-10 07:35:14,857 INFO L226 Difference]: Without dead ends: 267 [2019-09-10 07:35:14,858 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2019-09-10 07:35:14,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2019-09-10 07:35:14,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 105. [2019-09-10 07:35:14,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2019-09-10 07:35:14,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 130 transitions. [2019-09-10 07:35:14,862 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 130 transitions. Word has length 60 [2019-09-10 07:35:14,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:14,863 INFO L475 AbstractCegarLoop]: Abstraction has 105 states and 130 transitions. [2019-09-10 07:35:14,863 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-10 07:35:14,863 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 130 transitions. [2019-09-10 07:35:14,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-09-10 07:35:14,864 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:14,864 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:14,864 INFO L418 AbstractCegarLoop]: === Iteration 18 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:14,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:14,865 INFO L82 PathProgramCache]: Analyzing trace with hash -767770571, now seen corresponding path program 1 times [2019-09-10 07:35:14,865 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:14,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:14,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:14,866 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:14,866 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:14,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:14,918 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 07:35:14,919 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:14,919 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:35:14,919 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:14,919 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:35:14,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:35:14,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:35:14,920 INFO L87 Difference]: Start difference. First operand 105 states and 130 transitions. Second operand 3 states. [2019-09-10 07:35:14,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:14,944 INFO L93 Difference]: Finished difference Result 144 states and 185 transitions. [2019-09-10 07:35:14,944 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:35:14,944 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2019-09-10 07:35:14,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:14,945 INFO L225 Difference]: With dead ends: 144 [2019-09-10 07:35:14,945 INFO L226 Difference]: Without dead ends: 144 [2019-09-10 07:35:14,946 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 07:35:14,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-09-10 07:35:14,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 142. [2019-09-10 07:35:14,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2019-09-10 07:35:14,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 184 transitions. [2019-09-10 07:35:14,950 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 184 transitions. Word has length 76 [2019-09-10 07:35:14,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:14,950 INFO L475 AbstractCegarLoop]: Abstraction has 142 states and 184 transitions. [2019-09-10 07:35:14,950 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:35:14,950 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 184 transitions. [2019-09-10 07:35:14,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-10 07:35:14,951 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:14,951 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:14,952 INFO L418 AbstractCegarLoop]: === Iteration 19 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:14,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:14,952 INFO L82 PathProgramCache]: Analyzing trace with hash 1249178759, now seen corresponding path program 1 times [2019-09-10 07:35:14,952 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:14,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:14,953 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:14,953 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:14,954 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:14,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:15,036 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 07:35:15,036 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:15,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 07:35:15,037 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:15,038 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 07:35:15,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 07:35:15,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:35:15,039 INFO L87 Difference]: Start difference. First operand 142 states and 184 transitions. Second operand 7 states. [2019-09-10 07:35:15,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:15,364 INFO L93 Difference]: Finished difference Result 394 states and 542 transitions. [2019-09-10 07:35:15,364 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 07:35:15,365 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-09-10 07:35:15,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:15,367 INFO L225 Difference]: With dead ends: 394 [2019-09-10 07:35:15,367 INFO L226 Difference]: Without dead ends: 394 [2019-09-10 07:35:15,367 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2019-09-10 07:35:15,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2019-09-10 07:35:15,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 240. [2019-09-10 07:35:15,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2019-09-10 07:35:15,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 329 transitions. [2019-09-10 07:35:15,376 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 329 transitions. Word has length 78 [2019-09-10 07:35:15,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:15,377 INFO L475 AbstractCegarLoop]: Abstraction has 240 states and 329 transitions. [2019-09-10 07:35:15,377 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 07:35:15,378 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 329 transitions. [2019-09-10 07:35:15,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-10 07:35:15,378 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:15,379 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:15,379 INFO L418 AbstractCegarLoop]: === Iteration 20 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:15,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:15,379 INFO L82 PathProgramCache]: Analyzing trace with hash 620887447, now seen corresponding path program 1 times [2019-09-10 07:35:15,379 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:15,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:15,381 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:15,381 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:15,381 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:15,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:15,429 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 07:35:15,430 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:15,430 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:35:15,430 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:15,431 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:35:15,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:35:15,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:35:15,431 INFO L87 Difference]: Start difference. First operand 240 states and 329 transitions. Second operand 3 states. [2019-09-10 07:35:15,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:15,458 INFO L93 Difference]: Finished difference Result 398 states and 548 transitions. [2019-09-10 07:35:15,459 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:35:15,459 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2019-09-10 07:35:15,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:15,461 INFO L225 Difference]: With dead ends: 398 [2019-09-10 07:35:15,461 INFO L226 Difference]: Without dead ends: 398 [2019-09-10 07:35:15,462 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 07:35:15,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2019-09-10 07:35:15,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 392. [2019-09-10 07:35:15,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 392 states. [2019-09-10 07:35:15,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 392 states to 392 states and 543 transitions. [2019-09-10 07:35:15,472 INFO L78 Accepts]: Start accepts. Automaton has 392 states and 543 transitions. Word has length 78 [2019-09-10 07:35:15,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:15,473 INFO L475 AbstractCegarLoop]: Abstraction has 392 states and 543 transitions. [2019-09-10 07:35:15,473 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:35:15,473 INFO L276 IsEmpty]: Start isEmpty. Operand 392 states and 543 transitions. [2019-09-10 07:35:15,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-10 07:35:15,474 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:15,474 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:15,475 INFO L418 AbstractCegarLoop]: === Iteration 21 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:15,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:15,476 INFO L82 PathProgramCache]: Analyzing trace with hash 1331075096, now seen corresponding path program 1 times [2019-09-10 07:35:15,476 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:15,477 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:15,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:15,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:15,478 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:15,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:15,536 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 07:35:15,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:15,537 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:35:15,537 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:15,537 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:35:15,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:35:15,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:35:15,538 INFO L87 Difference]: Start difference. First operand 392 states and 543 transitions. Second operand 3 states. [2019-09-10 07:35:15,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:15,567 INFO L93 Difference]: Finished difference Result 562 states and 784 transitions. [2019-09-10 07:35:15,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:35:15,568 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 78 [2019-09-10 07:35:15,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:15,571 INFO L225 Difference]: With dead ends: 562 [2019-09-10 07:35:15,571 INFO L226 Difference]: Without dead ends: 562 [2019-09-10 07:35:15,572 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 07:35:15,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2019-09-10 07:35:15,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 560. [2019-09-10 07:35:15,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2019-09-10 07:35:15,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 783 transitions. [2019-09-10 07:35:15,585 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 783 transitions. Word has length 78 [2019-09-10 07:35:15,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:15,586 INFO L475 AbstractCegarLoop]: Abstraction has 560 states and 783 transitions. [2019-09-10 07:35:15,586 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:35:15,586 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 783 transitions. [2019-09-10 07:35:15,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-10 07:35:15,587 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:15,587 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:15,588 INFO L418 AbstractCegarLoop]: === Iteration 22 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:15,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:15,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1630779315, now seen corresponding path program 1 times [2019-09-10 07:35:15,588 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:15,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:15,590 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:15,590 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:15,590 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:15,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:15,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:35:15,697 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:15,698 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 07:35:15,698 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:15,699 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 07:35:15,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 07:35:15,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:35:15,700 INFO L87 Difference]: Start difference. First operand 560 states and 783 transitions. Second operand 7 states. [2019-09-10 07:35:16,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:16,130 INFO L93 Difference]: Finished difference Result 1498 states and 2097 transitions. [2019-09-10 07:35:16,132 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 07:35:16,132 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-09-10 07:35:16,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:16,139 INFO L225 Difference]: With dead ends: 1498 [2019-09-10 07:35:16,139 INFO L226 Difference]: Without dead ends: 1498 [2019-09-10 07:35:16,144 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2019-09-10 07:35:16,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2019-09-10 07:35:16,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 950. [2019-09-10 07:35:16,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 950 states. [2019-09-10 07:35:16,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 950 states to 950 states and 1345 transitions. [2019-09-10 07:35:16,170 INFO L78 Accepts]: Start accepts. Automaton has 950 states and 1345 transitions. Word has length 78 [2019-09-10 07:35:16,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:16,170 INFO L475 AbstractCegarLoop]: Abstraction has 950 states and 1345 transitions. [2019-09-10 07:35:16,171 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 07:35:16,171 INFO L276 IsEmpty]: Start isEmpty. Operand 950 states and 1345 transitions. [2019-09-10 07:35:16,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-10 07:35:16,172 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:16,172 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:16,172 INFO L418 AbstractCegarLoop]: === Iteration 23 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:16,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:16,173 INFO L82 PathProgramCache]: Analyzing trace with hash -1745512600, now seen corresponding path program 1 times [2019-09-10 07:35:16,173 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:16,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:16,175 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:16,175 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:16,175 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:16,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:16,255 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 07:35:16,255 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:16,256 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-10 07:35:16,256 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:16,256 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 07:35:16,256 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 07:35:16,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-10 07:35:16,257 INFO L87 Difference]: Start difference. First operand 950 states and 1345 transitions. Second operand 6 states. [2019-09-10 07:35:16,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:16,332 INFO L93 Difference]: Finished difference Result 1681 states and 2342 transitions. [2019-09-10 07:35:16,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-10 07:35:16,332 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2019-09-10 07:35:16,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:16,340 INFO L225 Difference]: With dead ends: 1681 [2019-09-10 07:35:16,340 INFO L226 Difference]: Without dead ends: 1681 [2019-09-10 07:35:16,340 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-09-10 07:35:16,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1681 states. [2019-09-10 07:35:16,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1681 to 974. [2019-09-10 07:35:16,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 974 states. [2019-09-10 07:35:16,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 974 states to 974 states and 1365 transitions. [2019-09-10 07:35:16,370 INFO L78 Accepts]: Start accepts. Automaton has 974 states and 1365 transitions. Word has length 79 [2019-09-10 07:35:16,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:16,370 INFO L475 AbstractCegarLoop]: Abstraction has 974 states and 1365 transitions. [2019-09-10 07:35:16,370 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 07:35:16,370 INFO L276 IsEmpty]: Start isEmpty. Operand 974 states and 1365 transitions. [2019-09-10 07:35:16,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-10 07:35:16,372 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:16,372 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:16,372 INFO L418 AbstractCegarLoop]: === Iteration 24 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:16,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:16,373 INFO L82 PathProgramCache]: Analyzing trace with hash -568260831, now seen corresponding path program 1 times [2019-09-10 07:35:16,373 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:16,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:16,374 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:16,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:16,374 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:16,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:16,449 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 07:35:16,450 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:16,450 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-10 07:35:16,450 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:16,450 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-10 07:35:16,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-10 07:35:16,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-10 07:35:16,452 INFO L87 Difference]: Start difference. First operand 974 states and 1365 transitions. Second operand 7 states. [2019-09-10 07:35:16,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:16,757 INFO L93 Difference]: Finished difference Result 2078 states and 2874 transitions. [2019-09-10 07:35:16,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-10 07:35:16,758 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 79 [2019-09-10 07:35:16,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:16,766 INFO L225 Difference]: With dead ends: 2078 [2019-09-10 07:35:16,766 INFO L226 Difference]: Without dead ends: 2078 [2019-09-10 07:35:16,767 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2019-09-10 07:35:16,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2078 states. [2019-09-10 07:35:16,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2078 to 1254. [2019-09-10 07:35:16,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1254 states. [2019-09-10 07:35:16,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1254 states to 1254 states and 1739 transitions. [2019-09-10 07:35:16,802 INFO L78 Accepts]: Start accepts. Automaton has 1254 states and 1739 transitions. Word has length 79 [2019-09-10 07:35:16,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:16,803 INFO L475 AbstractCegarLoop]: Abstraction has 1254 states and 1739 transitions. [2019-09-10 07:35:16,803 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-10 07:35:16,803 INFO L276 IsEmpty]: Start isEmpty. Operand 1254 states and 1739 transitions. [2019-09-10 07:35:16,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-09-10 07:35:16,804 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:16,804 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:16,805 INFO L418 AbstractCegarLoop]: === Iteration 25 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:16,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:16,805 INFO L82 PathProgramCache]: Analyzing trace with hash 1724131678, now seen corresponding path program 1 times [2019-09-10 07:35:16,805 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:16,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:16,807 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:16,807 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:16,807 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:16,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:16,869 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 07:35:16,870 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:16,870 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:35:16,870 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:16,870 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:35:16,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:35:16,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:35:16,871 INFO L87 Difference]: Start difference. First operand 1254 states and 1739 transitions. Second operand 3 states. [2019-09-10 07:35:16,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:16,921 INFO L93 Difference]: Finished difference Result 1151 states and 1565 transitions. [2019-09-10 07:35:16,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:35:16,922 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2019-09-10 07:35:16,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:16,926 INFO L225 Difference]: With dead ends: 1151 [2019-09-10 07:35:16,927 INFO L226 Difference]: Without dead ends: 1151 [2019-09-10 07:35:16,927 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 07:35:16,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1151 states. [2019-09-10 07:35:16,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1151 to 933. [2019-09-10 07:35:16,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 933 states. [2019-09-10 07:35:16,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 933 states to 933 states and 1266 transitions. [2019-09-10 07:35:16,948 INFO L78 Accepts]: Start accepts. Automaton has 933 states and 1266 transitions. Word has length 80 [2019-09-10 07:35:16,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:16,948 INFO L475 AbstractCegarLoop]: Abstraction has 933 states and 1266 transitions. [2019-09-10 07:35:16,948 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:35:16,948 INFO L276 IsEmpty]: Start isEmpty. Operand 933 states and 1266 transitions. [2019-09-10 07:35:16,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-09-10 07:35:16,949 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:16,949 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:16,950 INFO L418 AbstractCegarLoop]: === Iteration 26 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:16,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:16,950 INFO L82 PathProgramCache]: Analyzing trace with hash 265653448, now seen corresponding path program 1 times [2019-09-10 07:35:16,950 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:16,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:16,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:16,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:16,952 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:17,006 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 07:35:17,006 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:17,007 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:35:17,007 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:17,007 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:35:17,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:35:17,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:35:17,008 INFO L87 Difference]: Start difference. First operand 933 states and 1266 transitions. Second operand 3 states. [2019-09-10 07:35:17,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:17,033 INFO L93 Difference]: Finished difference Result 1283 states and 1705 transitions. [2019-09-10 07:35:17,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:35:17,034 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 81 [2019-09-10 07:35:17,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:17,039 INFO L225 Difference]: With dead ends: 1283 [2019-09-10 07:35:17,039 INFO L226 Difference]: Without dead ends: 1283 [2019-09-10 07:35:17,040 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 07:35:17,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1283 states. [2019-09-10 07:35:17,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1283 to 1167. [2019-09-10 07:35:17,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1167 states. [2019-09-10 07:35:17,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1167 states to 1167 states and 1566 transitions. [2019-09-10 07:35:17,062 INFO L78 Accepts]: Start accepts. Automaton has 1167 states and 1566 transitions. Word has length 81 [2019-09-10 07:35:17,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:17,062 INFO L475 AbstractCegarLoop]: Abstraction has 1167 states and 1566 transitions. [2019-09-10 07:35:17,062 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:35:17,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1167 states and 1566 transitions. [2019-09-10 07:35:17,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-09-10 07:35:17,063 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:17,063 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:17,064 INFO L418 AbstractCegarLoop]: === Iteration 27 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:17,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:17,064 INFO L82 PathProgramCache]: Analyzing trace with hash -1648812015, now seen corresponding path program 1 times [2019-09-10 07:35:17,064 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:17,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:17,066 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:17,066 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:17,066 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:17,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:17,111 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 07:35:17,112 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:17,112 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:35:17,112 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:17,112 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:35:17,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:35:17,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:35:17,113 INFO L87 Difference]: Start difference. First operand 1167 states and 1566 transitions. Second operand 3 states. [2019-09-10 07:35:17,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:17,131 INFO L93 Difference]: Finished difference Result 1309 states and 1738 transitions. [2019-09-10 07:35:17,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:35:17,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 82 [2019-09-10 07:35:17,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:17,137 INFO L225 Difference]: With dead ends: 1309 [2019-09-10 07:35:17,137 INFO L226 Difference]: Without dead ends: 1309 [2019-09-10 07:35:17,137 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 07:35:17,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1309 states. [2019-09-10 07:35:17,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1309 to 1267. [2019-09-10 07:35:17,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1267 states. [2019-09-10 07:35:17,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1267 states to 1267 states and 1687 transitions. [2019-09-10 07:35:17,162 INFO L78 Accepts]: Start accepts. Automaton has 1267 states and 1687 transitions. Word has length 82 [2019-09-10 07:35:17,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:17,162 INFO L475 AbstractCegarLoop]: Abstraction has 1267 states and 1687 transitions. [2019-09-10 07:35:17,162 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:35:17,162 INFO L276 IsEmpty]: Start isEmpty. Operand 1267 states and 1687 transitions. [2019-09-10 07:35:17,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-09-10 07:35:17,164 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:17,164 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:17,165 INFO L418 AbstractCegarLoop]: === Iteration 28 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:17,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:17,165 INFO L82 PathProgramCache]: Analyzing trace with hash -2106033639, now seen corresponding path program 1 times [2019-09-10 07:35:17,165 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:17,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:17,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:17,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:17,167 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:17,239 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-10 07:35:17,239 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:17,239 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:35:17,239 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:17,240 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:35:17,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:35:17,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:35:17,240 INFO L87 Difference]: Start difference. First operand 1267 states and 1687 transitions. Second operand 5 states. [2019-09-10 07:35:17,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:17,301 INFO L93 Difference]: Finished difference Result 2159 states and 2867 transitions. [2019-09-10 07:35:17,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:35:17,302 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2019-09-10 07:35:17,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:17,312 INFO L225 Difference]: With dead ends: 2159 [2019-09-10 07:35:17,312 INFO L226 Difference]: Without dead ends: 2159 [2019-09-10 07:35:17,312 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-09-10 07:35:17,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2159 states. [2019-09-10 07:35:17,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2159 to 1722. [2019-09-10 07:35:17,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1722 states. [2019-09-10 07:35:17,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1722 states to 1722 states and 2299 transitions. [2019-09-10 07:35:17,347 INFO L78 Accepts]: Start accepts. Automaton has 1722 states and 2299 transitions. Word has length 101 [2019-09-10 07:35:17,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:17,347 INFO L475 AbstractCegarLoop]: Abstraction has 1722 states and 2299 transitions. [2019-09-10 07:35:17,347 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:35:17,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1722 states and 2299 transitions. [2019-09-10 07:35:17,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-09-10 07:35:17,349 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:17,349 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:17,349 INFO L418 AbstractCegarLoop]: === Iteration 29 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:17,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:17,350 INFO L82 PathProgramCache]: Analyzing trace with hash -691024417, now seen corresponding path program 1 times [2019-09-10 07:35:17,350 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:17,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:17,351 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:17,351 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:17,351 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:17,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:17,424 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-10 07:35:17,425 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:17,425 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:35:17,425 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:17,425 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:35:17,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:35:17,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:35:17,426 INFO L87 Difference]: Start difference. First operand 1722 states and 2299 transitions. Second operand 5 states. [2019-09-10 07:35:17,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:17,502 INFO L93 Difference]: Finished difference Result 4725 states and 6311 transitions. [2019-09-10 07:35:17,503 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:35:17,503 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2019-09-10 07:35:17,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:17,520 INFO L225 Difference]: With dead ends: 4725 [2019-09-10 07:35:17,521 INFO L226 Difference]: Without dead ends: 4725 [2019-09-10 07:35:17,521 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 07:35:17,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4725 states. [2019-09-10 07:35:17,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4725 to 2592. [2019-09-10 07:35:17,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2592 states. [2019-09-10 07:35:17,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2592 states to 2592 states and 3459 transitions. [2019-09-10 07:35:17,580 INFO L78 Accepts]: Start accepts. Automaton has 2592 states and 3459 transitions. Word has length 101 [2019-09-10 07:35:17,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:17,580 INFO L475 AbstractCegarLoop]: Abstraction has 2592 states and 3459 transitions. [2019-09-10 07:35:17,580 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:35:17,580 INFO L276 IsEmpty]: Start isEmpty. Operand 2592 states and 3459 transitions. [2019-09-10 07:35:17,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-10 07:35:17,582 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:17,582 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:35:17,583 INFO L418 AbstractCegarLoop]: === Iteration 30 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:17,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:17,583 INFO L82 PathProgramCache]: Analyzing trace with hash -1500630065, now seen corresponding path program 1 times [2019-09-10 07:35:17,583 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:17,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:17,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:17,584 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:17,585 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:17,659 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 07:35:17,660 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:17,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-10 07:35:17,660 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:17,660 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 07:35:17,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 07:35:17,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 07:35:17,661 INFO L87 Difference]: Start difference. First operand 2592 states and 3459 transitions. Second operand 5 states. [2019-09-10 07:35:17,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:17,734 INFO L93 Difference]: Finished difference Result 3517 states and 4690 transitions. [2019-09-10 07:35:17,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 07:35:17,735 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2019-09-10 07:35:17,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:17,770 INFO L225 Difference]: With dead ends: 3517 [2019-09-10 07:35:17,771 INFO L226 Difference]: Without dead ends: 3517 [2019-09-10 07:35:17,775 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-09-10 07:35:17,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3517 states. [2019-09-10 07:35:17,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3517 to 3047. [2019-09-10 07:35:17,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3047 states. [2019-09-10 07:35:17,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3047 states to 3047 states and 4071 transitions. [2019-09-10 07:35:17,835 INFO L78 Accepts]: Start accepts. Automaton has 3047 states and 4071 transitions. Word has length 102 [2019-09-10 07:35:17,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:17,836 INFO L475 AbstractCegarLoop]: Abstraction has 3047 states and 4071 transitions. [2019-09-10 07:35:17,836 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 07:35:17,836 INFO L276 IsEmpty]: Start isEmpty. Operand 3047 states and 4071 transitions. [2019-09-10 07:35:17,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-10 07:35:17,838 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:17,838 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:17,839 INFO L418 AbstractCegarLoop]: === Iteration 31 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:17,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:17,839 INFO L82 PathProgramCache]: Analyzing trace with hash -544511748, now seen corresponding path program 1 times [2019-09-10 07:35:17,839 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:17,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:17,840 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:17,840 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:17,840 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:17,898 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:35:17,898 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:17,898 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:35:17,898 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:17,899 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:35:17,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:35:17,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:35:17,900 INFO L87 Difference]: Start difference. First operand 3047 states and 4071 transitions. Second operand 3 states. [2019-09-10 07:35:17,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:17,919 INFO L93 Difference]: Finished difference Result 2728 states and 3534 transitions. [2019-09-10 07:35:17,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:35:17,919 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2019-09-10 07:35:17,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:17,925 INFO L225 Difference]: With dead ends: 2728 [2019-09-10 07:35:17,925 INFO L226 Difference]: Without dead ends: 2728 [2019-09-10 07:35:17,925 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 07:35:17,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2728 states. [2019-09-10 07:35:17,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2728 to 2726. [2019-09-10 07:35:17,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2726 states. [2019-09-10 07:35:17,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 3533 transitions. [2019-09-10 07:35:17,980 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 3533 transitions. Word has length 103 [2019-09-10 07:35:17,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:17,981 INFO L475 AbstractCegarLoop]: Abstraction has 2726 states and 3533 transitions. [2019-09-10 07:35:17,981 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:35:17,981 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 3533 transitions. [2019-09-10 07:35:17,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-10 07:35:17,983 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:17,983 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:17,984 INFO L418 AbstractCegarLoop]: === Iteration 32 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:17,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:17,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1409510800, now seen corresponding path program 1 times [2019-09-10 07:35:17,984 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:17,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:17,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:17,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:17,987 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:18,127 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-10 07:35:18,128 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:35:18,128 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-10 07:35:18,128 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:35:18,128 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 07:35:18,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 07:35:18,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-10 07:35:18,130 INFO L87 Difference]: Start difference. First operand 2726 states and 3533 transitions. Second operand 9 states. [2019-09-10 07:35:18,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:35:18,550 INFO L93 Difference]: Finished difference Result 5523 states and 7133 transitions. [2019-09-10 07:35:18,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-10 07:35:18,550 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 103 [2019-09-10 07:35:18,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:35:18,560 INFO L225 Difference]: With dead ends: 5523 [2019-09-10 07:35:18,560 INFO L226 Difference]: Without dead ends: 5523 [2019-09-10 07:35:18,562 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2019-09-10 07:35:18,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5523 states. [2019-09-10 07:35:18,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5523 to 2726. [2019-09-10 07:35:18,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2726 states. [2019-09-10 07:35:18,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2726 states to 2726 states and 3532 transitions. [2019-09-10 07:35:18,614 INFO L78 Accepts]: Start accepts. Automaton has 2726 states and 3532 transitions. Word has length 103 [2019-09-10 07:35:18,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:35:18,615 INFO L475 AbstractCegarLoop]: Abstraction has 2726 states and 3532 transitions. [2019-09-10 07:35:18,615 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 07:35:18,615 INFO L276 IsEmpty]: Start isEmpty. Operand 2726 states and 3532 transitions. [2019-09-10 07:35:18,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-09-10 07:35:18,617 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:35:18,617 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:35:18,617 INFO L418 AbstractCegarLoop]: === Iteration 33 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:35:18,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:18,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1031408707, now seen corresponding path program 1 times [2019-09-10 07:35:18,618 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:35:18,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:18,620 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:18,620 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:35:18,620 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:35:18,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:18,884 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:35:18,884 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:35:18,884 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:35:18,885 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 106 with the following transitions: [2019-09-10 07:35:18,887 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [113], [115], [117], [120], [123], [126], [128], [130], [133], [136], [139], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [178], [180], [183], [191], [193], [196], [204], [206], [209], [212], [216], [218], [220], [223], [224], [226], [229], [234], [236], [239], [252], [254], [257], [260], [262], [277], [279], [282], [285], [287], [302], [304], [306], [309], [312], [314], [752], [753], [757], [758], [759] [2019-09-10 07:35:18,965 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:35:18,965 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:35:19,121 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:35:19,705 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:35:19,708 INFO L272 AbstractInterpreter]: Visited 98 different actions 438 times. Merged at 38 different actions 294 times. Widened at 13 different actions 39 times. Performed 1453 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1453 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 50 fixpoints after 13 different actions. Largest state had 134 variables. [2019-09-10 07:35:19,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:35:19,714 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:35:19,714 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:35:19,714 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 07:35:19,743 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:35:19,743 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 07:35:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:35:19,893 INFO L256 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 19 conjunts are in the unsatisfiable core [2019-09-10 07:35:19,909 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:35:20,231 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:20,565 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:35:20,566 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:35:20,755 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:21,688 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:21,778 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:21,778 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:21,781 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:22,676 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:35:22,875 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:35:22,888 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:35:22,888 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 30 [2019-09-10 07:35:22,889 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:35:22,896 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-10 07:35:22,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-10 07:35:22,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=773, Unknown=0, NotChecked=0, Total=870 [2019-09-10 07:35:22,897 INFO L87 Difference]: Start difference. First operand 2726 states and 3532 transitions. Second operand 20 states. [2019-09-10 07:35:26,047 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-10 07:35:27,397 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-10 07:35:27,954 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 07:35:28,577 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 07:35:28,766 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-10 07:35:28,939 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-10 07:35:29,446 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-10 07:35:29,665 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-10 07:35:30,031 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 07:35:30,569 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2019-09-10 07:35:30,809 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:35:31,017 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:35:32,035 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2019-09-10 07:35:32,923 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2019-09-10 07:35:33,230 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 07:35:33,433 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2019-09-10 07:35:33,990 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2019-09-10 07:35:35,448 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:35:35,660 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:35:36,563 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:35:37,314 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 07:35:37,689 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-10 07:35:38,351 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:35:39,615 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:35:40,505 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 07:35:40,949 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-10 07:35:41,433 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-10 07:35:41,786 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-10 07:35:42,028 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 07:35:42,457 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:35:43,933 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 07:35:44,310 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 07:35:44,675 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-10 07:35:45,135 WARN L188 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-10 07:35:45,366 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2019-09-10 07:35:45,593 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59 [2019-09-10 07:35:46,210 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 07:35:46,774 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-10 07:35:46,984 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-10 07:35:47,286 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:35:47,508 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:35:47,776 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:35:48,034 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:35:48,224 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-10 07:35:48,491 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:35:48,720 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-10 07:35:49,342 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-10 07:35:49,640 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-10 07:35:49,866 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 07:35:50,181 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-10 07:35:50,643 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 07:35:51,038 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 07:35:51,382 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 07:35:51,702 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-10 07:35:52,271 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-10 07:35:52,449 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 07:35:52,822 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:35:53,229 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:35:53,489 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-10 07:35:53,802 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:35:54,054 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 07:35:54,425 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:35:54,641 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 07:35:54,848 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-10 07:35:55,108 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-10 07:35:55,335 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-10 07:35:55,508 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-10 07:35:56,129 WARN L188 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-10 07:35:56,508 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-10 07:35:56,703 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 07:35:56,864 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2019-09-10 07:35:57,123 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-10 07:35:57,296 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-10 07:35:57,543 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:35:57,737 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-10 07:35:57,905 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-10 07:35:58,527 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-10 07:35:59,093 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-10 07:35:59,292 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-09-10 07:35:59,914 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-10 07:36:01,964 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-10 07:36:02,323 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-10 07:36:02,664 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 07:36:02,858 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2019-09-10 07:36:03,100 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 07:36:03,549 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-10 07:36:03,746 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-10 07:36:04,094 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 07:36:04,686 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-10 07:36:04,903 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 07:36:08,373 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 07:36:08,803 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-10 07:36:09,508 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-10 07:36:09,866 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-10 07:36:10,438 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-10 07:36:10,889 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-10 07:36:11,251 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-10 07:36:11,472 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-10 07:36:11,872 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-10 07:36:12,277 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 07:36:12,842 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-10 07:36:13,411 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-10 07:36:13,704 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-10 07:36:14,247 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-10 07:36:14,566 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-10 07:36:14,888 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-10 07:36:15,297 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-10 07:36:15,526 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-10 07:36:15,715 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-10 07:36:15,927 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-10 07:36:17,095 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-10 07:36:17,399 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-10 07:36:17,893 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-09-10 07:36:18,191 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2019-09-10 07:36:18,408 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2019-09-10 07:36:18,691 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-09-10 07:36:18,998 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-10 07:36:19,604 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2019-09-10 07:36:19,995 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-09-10 07:36:20,480 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2019-09-10 07:36:21,466 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2019-09-10 07:36:21,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:36:21,569 INFO L93 Difference]: Finished difference Result 41277 states and 52531 transitions. [2019-09-10 07:36:21,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2019-09-10 07:36:21,570 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 105 [2019-09-10 07:36:21,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:36:21,644 INFO L225 Difference]: With dead ends: 41277 [2019-09-10 07:36:21,645 INFO L226 Difference]: Without dead ends: 41277 [2019-09-10 07:36:21,661 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 420 GetRequests, 162 SyntacticMatches, 30 SemanticMatches, 228 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20148 ImplicationChecksByTransitivity, 42.9s TimeCoverageRelationStatistics Valid=8506, Invalid=44164, Unknown=0, NotChecked=0, Total=52670 [2019-09-10 07:36:21,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41277 states. [2019-09-10 07:36:22,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41277 to 13719. [2019-09-10 07:36:22,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13719 states. [2019-09-10 07:36:22,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13719 states to 13719 states and 17739 transitions. [2019-09-10 07:36:22,263 INFO L78 Accepts]: Start accepts. Automaton has 13719 states and 17739 transitions. Word has length 105 [2019-09-10 07:36:22,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:36:22,264 INFO L475 AbstractCegarLoop]: Abstraction has 13719 states and 17739 transitions. [2019-09-10 07:36:22,264 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-10 07:36:22,264 INFO L276 IsEmpty]: Start isEmpty. Operand 13719 states and 17739 transitions. [2019-09-10 07:36:22,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-09-10 07:36:22,268 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:36:22,268 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:36:22,269 INFO L418 AbstractCegarLoop]: === Iteration 34 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:36:22,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:36:22,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1597113786, now seen corresponding path program 1 times [2019-09-10 07:36:22,270 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:36:22,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:36:22,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:36:22,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:36:22,284 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:36:22,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:36:22,666 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:36:22,666 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:36:22,666 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:36:22,667 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 107 with the following transitions: [2019-09-10 07:36:22,667 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [113], [115], [117], [120], [123], [126], [128], [130], [133], [136], [139], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [173], [178], [180], [183], [186], [191], [193], [196], [204], [206], [209], [216], [218], [220], [223], [224], [226], [236], [239], [243], [252], [254], [257], [260], [262], [270], [273], [279], [282], [285], [287], [295], [298], [304], [306], [309], [312], [314], [752], [753], [757], [758], [759] [2019-09-10 07:36:22,682 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:36:22,682 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:36:22,724 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:36:23,161 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:36:23,162 INFO L272 AbstractInterpreter]: Visited 100 different actions 423 times. Merged at 41 different actions 286 times. Widened at 14 different actions 43 times. Performed 1455 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1455 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 31 fixpoints after 10 different actions. Largest state had 134 variables. [2019-09-10 07:36:23,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:36:23,162 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:36:23,163 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:36:23,163 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 07:36:23,180 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:36:23,180 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 07:36:23,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:36:23,289 INFO L256 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-10 07:36:23,296 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:36:23,668 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:23,776 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:23,999 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:36:23,999 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:36:24,312 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:24,312 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:24,313 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:24,313 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:24,314 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:24,314 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:24,315 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:24,315 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:24,316 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:24,317 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:24,317 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:24,318 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:24,319 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:24,319 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:24,319 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:24,320 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:24,320 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:24,321 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:24,321 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:24,322 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:24,322 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:24,323 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:24,323 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:25,185 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:36:25,299 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:36:25,303 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:36:25,303 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 12] total 36 [2019-09-10 07:36:25,303 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:36:25,304 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-09-10 07:36:25,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-09-10 07:36:25,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=1143, Unknown=0, NotChecked=0, Total=1260 [2019-09-10 07:36:25,305 INFO L87 Difference]: Start difference. First operand 13719 states and 17739 transitions. Second operand 26 states. [2019-09-10 07:36:25,668 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-10 07:36:26,400 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-10 07:36:26,768 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-10 07:36:27,142 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-10 07:36:27,608 WARN L188 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-10 07:36:28,159 WARN L188 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-10 07:36:28,580 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:36:29,036 WARN L188 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:36:29,433 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:36:30,040 WARN L188 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:36:30,528 WARN L188 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:36:30,934 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:36:31,356 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:36:31,629 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:36:32,187 WARN L188 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:36:32,585 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:36:32,847 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:36:33,183 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:36:33,533 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2019-09-10 07:36:33,909 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:36:34,263 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:36:34,513 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:36:35,020 WARN L188 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:36:35,264 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:36:35,772 WARN L188 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:36:36,010 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:36:36,400 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2019-09-10 07:36:36,630 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:36:36,877 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-10 07:36:37,313 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:36:37,712 WARN L188 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:36:38,043 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:36:38,585 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:36:39,034 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2019-09-10 07:36:39,447 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:36:39,873 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:36:40,295 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2019-09-10 07:36:40,652 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:36:40,922 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:36:41,333 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2019-09-10 07:36:41,746 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2019-09-10 07:36:42,123 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:36:42,582 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:36:42,969 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:36:43,363 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:36:43,641 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:36:43,989 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:36:44,227 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 07:36:44,465 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:36:44,736 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-10 07:36:45,050 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:36:45,496 WARN L188 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:36:45,788 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-10 07:36:46,036 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:36:46,344 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-10 07:36:46,736 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:36:47,002 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:36:47,285 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 07:36:47,491 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:36:47,859 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-10 07:36:48,215 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:36:48,471 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:36:48,684 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-10 07:36:48,954 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:36:49,365 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-10 07:36:49,681 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:36:49,925 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:36:50,294 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:36:50,824 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2019-09-10 07:36:51,132 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 07:36:51,512 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:36:51,970 WARN L188 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2019-09-10 07:36:52,328 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2019-09-10 07:36:52,773 WARN L188 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2019-09-10 07:36:53,235 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 91 [2019-09-10 07:36:53,753 WARN L188 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91 [2019-09-10 07:36:54,085 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2019-09-10 07:36:54,438 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2019-09-10 07:36:54,731 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:36:55,124 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2019-09-10 07:36:55,633 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2019-09-10 07:36:55,958 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-10 07:36:56,379 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:36:56,705 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:36:57,163 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:36:57,678 WARN L188 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2019-09-10 07:36:58,046 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2019-09-10 07:36:58,487 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2019-09-10 07:36:58,972 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 07:36:59,435 WARN L188 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:36:59,926 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2019-09-10 07:37:00,241 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 07:37:00,551 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:37:01,031 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:37:01,634 WARN L188 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2019-09-10 07:37:02,046 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2019-09-10 07:37:02,572 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-10 07:37:03,086 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2019-09-10 07:37:03,527 WARN L188 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2019-09-10 07:37:03,993 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2019-09-10 07:37:04,529 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-10 07:37:05,224 WARN L188 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 97 [2019-09-10 07:37:05,606 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-10 07:37:06,050 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:37:06,617 WARN L188 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 91 [2019-09-10 07:37:06,983 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2019-09-10 07:37:07,432 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 07:37:07,746 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:37:08,202 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:37:10,771 WARN L188 SmtUtils]: Spent 2.45 s on a formula simplification. DAG size of input: 100 DAG size of output: 91 [2019-09-10 07:37:11,178 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2019-09-10 07:37:12,014 WARN L188 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2019-09-10 07:37:12,427 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:37:12,837 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:37:13,383 WARN L188 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2019-09-10 07:37:13,926 WARN L188 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2019-09-10 07:37:14,335 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2019-09-10 07:37:14,662 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-10 07:37:15,080 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 92 [2019-09-10 07:37:15,445 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:37:15,784 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2019-09-10 07:37:16,297 WARN L188 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2019-09-10 07:37:16,697 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:37:17,299 WARN L188 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2019-09-10 07:37:17,743 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95 [2019-09-10 07:37:18,116 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 93 [2019-09-10 07:37:18,480 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:37:18,847 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:37:19,159 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2019-09-10 07:37:19,756 WARN L188 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 99 [2019-09-10 07:37:20,273 WARN L188 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 93 [2019-09-10 07:37:20,643 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-10 07:37:22,740 WARN L188 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2019-09-10 07:37:23,137 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95 [2019-09-10 07:37:23,531 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2019-09-10 07:37:23,875 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2019-09-10 07:37:24,231 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:37:24,883 WARN L188 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2019-09-10 07:37:25,247 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2019-09-10 07:37:25,639 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2019-09-10 07:37:25,949 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:37:26,266 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:37:26,703 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:37:27,223 WARN L188 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2019-09-10 07:37:27,462 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:37:27,724 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:37:28,554 WARN L188 SmtUtils]: Spent 747.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:37:29,100 WARN L188 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2019-09-10 07:37:29,490 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2019-09-10 07:37:29,874 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2019-09-10 07:37:30,522 WARN L188 SmtUtils]: Spent 548.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2019-09-10 07:37:30,926 WARN L188 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2019-09-10 07:37:31,259 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2019-09-10 07:37:31,677 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:37:32,027 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2019-09-10 07:37:32,778 WARN L188 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:37:33,206 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2019-09-10 07:37:33,656 WARN L188 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-10 07:37:34,015 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2019-09-10 07:37:34,458 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-10 07:37:34,816 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2019-09-10 07:37:35,133 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:37:35,498 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:37:35,944 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 93 [2019-09-10 07:37:36,399 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2019-09-10 07:37:36,801 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2019-09-10 07:37:37,200 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-10 07:37:37,848 WARN L188 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2019-09-10 07:37:38,429 WARN L188 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 95 [2019-09-10 07:37:38,825 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:37:39,182 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:37:39,466 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:37:39,829 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2019-09-10 07:37:40,406 WARN L188 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 07:37:40,669 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:37:41,221 WARN L188 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:37:41,569 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2019-09-10 07:37:42,017 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2019-09-10 07:37:42,390 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 91 [2019-09-10 07:37:42,956 WARN L188 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2019-09-10 07:37:43,319 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:37:43,886 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:37:44,219 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-10 07:37:44,984 WARN L188 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2019-09-10 07:37:45,360 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:37:45,779 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:37:46,319 WARN L188 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2019-09-10 07:37:46,776 WARN L188 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-09-10 07:37:47,278 WARN L188 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2019-09-10 07:37:47,722 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:37:48,034 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:37:48,315 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:37:48,918 WARN L188 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2019-09-10 07:37:49,318 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:37:49,689 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2019-09-10 07:37:50,017 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2019-09-10 07:37:50,514 WARN L188 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2019-09-10 07:37:51,025 WARN L188 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:37:51,368 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2019-09-10 07:37:51,850 WARN L188 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2019-09-10 07:37:52,140 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:37:52,488 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2019-09-10 07:37:52,806 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:37:53,185 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 91 [2019-09-10 07:37:53,647 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:37:54,213 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 07:37:54,726 WARN L188 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 92 [2019-09-10 07:37:55,307 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2019-09-10 07:37:55,607 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:37:56,024 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2019-09-10 07:37:56,307 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:37:56,715 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:37:57,087 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:37:57,577 WARN L188 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:37:57,909 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2019-09-10 07:37:58,424 WARN L188 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:37:58,900 WARN L188 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 93 [2019-09-10 07:37:59,239 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 07:37:59,535 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:37:59,997 WARN L188 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 07:38:00,392 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:38:00,892 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2019-09-10 07:38:01,371 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:38:01,723 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2019-09-10 07:38:02,239 WARN L188 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:38:02,585 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2019-09-10 07:38:03,193 WARN L188 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:38:03,470 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2019-09-10 07:38:03,829 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2019-09-10 07:38:04,234 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2019-09-10 07:38:04,658 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:38:04,997 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-10 07:38:05,310 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:38:05,650 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2019-09-10 07:38:06,103 WARN L188 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:38:06,394 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:38:06,723 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2019-09-10 07:38:07,062 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:38:07,364 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2019-09-10 07:38:07,772 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2019-09-10 07:38:08,420 WARN L188 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2019-09-10 07:38:08,781 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 07:38:09,136 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-10 07:38:09,470 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2019-09-10 07:38:09,922 WARN L188 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-10 07:38:10,250 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2019-09-10 07:38:10,591 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:38:11,001 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 96 [2019-09-10 07:38:11,360 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2019-09-10 07:38:11,893 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 07:38:12,350 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:38:12,640 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-09-10 07:38:13,154 WARN L188 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2019-09-10 07:38:13,520 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2019-09-10 07:38:13,851 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2019-09-10 07:38:14,286 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:38:14,581 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 07:38:15,077 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2019-09-10 07:38:15,413 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2019-09-10 07:38:15,779 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2019-09-10 07:38:16,382 WARN L188 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:38:16,716 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:38:17,034 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:38:17,500 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-09-10 07:38:17,802 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-10 07:38:18,357 WARN L188 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:38:18,733 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-10 07:38:19,032 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:38:19,344 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:38:19,661 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-10 07:38:20,133 WARN L188 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:38:20,491 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2019-09-10 07:38:20,842 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:38:21,164 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:38:21,455 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:38:21,771 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-10 07:38:22,093 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-09-10 07:38:22,888 WARN L188 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:38:23,335 WARN L188 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2019-09-10 07:38:23,764 WARN L188 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2019-09-10 07:38:24,227 WARN L188 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 07:38:24,466 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:38:24,733 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2019-09-10 07:38:24,975 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:38:25,442 WARN L188 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-10 07:38:26,068 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2019-09-10 07:38:26,494 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:38:26,909 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:38:27,306 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:38:27,606 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2019-09-10 07:38:27,967 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2019-09-10 07:38:28,302 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2019-09-10 07:38:28,608 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2019-09-10 07:38:28,919 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:38:29,300 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2019-09-10 07:38:29,611 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:38:29,880 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:38:30,264 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:38:30,667 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2019-09-10 07:38:31,016 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 92 [2019-09-10 07:38:31,366 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 89 [2019-09-10 07:38:31,942 WARN L188 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:38:32,305 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-10 07:38:32,635 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-10 07:38:32,972 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:38:33,322 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-10 07:38:34,807 WARN L188 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:38:35,140 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-10 07:38:35,613 WARN L188 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:38:36,015 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 94 [2019-09-10 07:38:36,607 WARN L188 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 07:38:36,920 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 07:38:37,269 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2019-09-10 07:38:37,633 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2019-09-10 07:38:38,076 WARN L188 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-10 07:38:38,326 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:38:38,839 WARN L188 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-09-10 07:38:39,157 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2019-09-10 07:38:39,635 WARN L188 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:38:39,943 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:38:40,317 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2019-09-10 07:38:40,794 WARN L188 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2019-09-10 07:38:41,205 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:38:41,495 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:38:41,863 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:38:42,140 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:38:42,470 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:38:42,842 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:38:43,193 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2019-09-10 07:38:43,567 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2019-09-10 07:38:43,915 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:38:44,240 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:38:44,734 WARN L188 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:38:45,085 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84 [2019-09-10 07:38:45,574 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2019-09-10 07:38:45,847 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:38:46,247 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:38:46,671 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-10 07:38:47,118 WARN L188 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2019-09-10 07:38:47,361 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:38:47,709 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:38:48,051 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:38:48,375 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-10 07:38:48,834 WARN L188 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:38:49,381 WARN L188 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:38:49,701 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-10 07:38:50,011 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:38:50,337 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:38:51,157 WARN L188 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:38:51,670 WARN L188 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2019-09-10 07:38:52,068 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:38:52,328 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:38:52,597 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-10 07:38:52,998 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:38:53,344 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2019-09-10 07:38:53,690 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:38:54,070 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2019-09-10 07:38:54,361 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84 [2019-09-10 07:38:54,936 WARN L188 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:38:55,418 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-10 07:38:55,789 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 91 [2019-09-10 07:38:56,264 WARN L188 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2019-09-10 07:38:56,585 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:38:56,958 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2019-09-10 07:38:57,470 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2019-09-10 07:38:57,827 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2019-09-10 07:38:58,205 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:38:58,521 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:38:58,916 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:38:59,238 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:38:59,567 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 07:38:59,911 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:39:00,361 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 07:39:00,887 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:39:01,169 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:39:01,670 WARN L188 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:39:01,996 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:39:02,353 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2019-09-10 07:39:02,737 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-10 07:39:03,102 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2019-09-10 07:39:03,476 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2019-09-10 07:39:03,849 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:39:04,236 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:39:04,622 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2019-09-10 07:39:05,049 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-10 07:39:05,416 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:39:05,920 WARN L188 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:39:06,290 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2019-09-10 07:39:06,871 WARN L188 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:39:07,335 WARN L188 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:39:07,650 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84 [2019-09-10 07:39:07,911 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:39:08,237 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-10 07:39:08,557 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:39:08,955 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2019-09-10 07:39:09,418 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:39:10,198 WARN L188 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:39:12,178 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:39:13,140 WARN L188 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:39:13,485 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-10 07:39:13,785 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:39:14,239 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2019-09-10 07:39:14,687 WARN L188 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-10 07:39:15,133 WARN L188 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:39:15,531 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 89 [2019-09-10 07:39:15,868 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 85 [2019-09-10 07:39:16,336 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:39:16,680 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2019-09-10 07:39:17,042 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2019-09-10 07:39:17,478 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2019-09-10 07:39:17,856 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:39:18,262 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2019-09-10 07:39:18,707 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-10 07:39:19,131 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:39:19,454 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-10 07:39:19,766 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2019-09-10 07:39:20,241 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:39:20,573 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:39:21,019 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:39:21,819 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:39:22,150 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:39:22,503 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2019-09-10 07:39:22,939 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2019-09-10 07:39:23,436 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2019-09-10 07:39:23,811 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2019-09-10 07:39:24,239 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 96 [2019-09-10 07:39:24,600 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2019-09-10 07:39:24,913 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:39:25,292 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-10 07:39:25,609 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:39:26,036 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 94 [2019-09-10 07:39:26,605 WARN L188 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2019-09-10 07:39:27,071 WARN L188 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 94 [2019-09-10 07:39:27,589 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 98 [2019-09-10 07:39:28,019 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 94 [2019-09-10 07:39:28,493 WARN L188 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2019-09-10 07:39:28,856 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:39:29,194 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-10 07:39:29,751 WARN L188 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:39:30,106 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2019-09-10 07:39:30,552 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 96 [2019-09-10 07:39:31,012 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2019-09-10 07:39:31,374 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2019-09-10 07:39:31,712 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:39:32,118 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 91 [2019-09-10 07:39:32,476 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2019-09-10 07:39:33,240 WARN L188 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2019-09-10 07:39:33,554 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 85 [2019-09-10 07:39:36,073 WARN L188 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-10 07:39:36,395 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:39:36,890 WARN L188 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 90 [2019-09-10 07:39:37,404 WARN L188 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2019-09-10 07:39:37,800 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2019-09-10 07:39:38,345 WARN L188 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 85 [2019-09-10 07:39:38,732 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:39:39,108 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 07:39:39,454 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:39:39,859 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2019-09-10 07:39:40,218 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2019-09-10 07:39:40,659 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 96 [2019-09-10 07:39:41,048 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:39:41,436 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2019-09-10 07:39:42,475 WARN L188 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 94 [2019-09-10 07:39:42,844 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:39:43,266 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:39:43,604 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:39:44,243 WARN L188 SmtUtils]: Spent 536.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 07:39:44,638 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 85 [2019-09-10 07:39:45,131 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2019-09-10 07:39:45,432 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:39:45,910 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-10 07:39:46,293 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 07:39:46,767 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:39:47,173 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2019-09-10 07:39:47,489 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:39:47,836 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-10 07:39:48,270 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:39:48,727 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-10 07:39:49,198 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 07:39:51,527 WARN L188 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:39:51,987 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2019-09-10 07:39:52,557 WARN L188 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2019-09-10 07:39:52,903 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:39:53,264 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 07:39:53,590 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:39:54,003 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:39:54,227 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:39:54,628 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-10 07:39:54,891 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:39:55,436 WARN L188 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 07:39:55,837 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:39:56,170 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2019-09-10 07:39:56,703 WARN L188 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-10 07:39:57,034 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2019-09-10 07:39:57,519 WARN L188 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2019-09-10 07:39:57,852 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:39:58,228 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2019-09-10 07:39:58,641 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2019-09-10 07:39:58,929 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:39:59,254 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:39:59,548 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-10 07:39:59,845 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:40:00,701 WARN L188 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:40:01,104 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 89 [2019-09-10 07:40:01,568 WARN L188 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:40:01,929 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:40:02,296 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-10 07:40:02,617 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2019-09-10 07:40:02,957 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-10 07:40:03,301 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:40:03,603 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2019-09-10 07:40:03,986 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-10 07:40:04,312 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-10 07:40:04,617 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:40:04,893 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-10 07:40:05,118 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-10 07:40:05,421 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:40:05,730 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:40:06,100 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2019-09-10 07:40:06,408 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:40:06,781 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-10 07:40:07,073 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:40:07,384 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:40:09,757 WARN L188 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2019-09-10 07:40:10,223 WARN L188 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 85 [2019-09-10 07:40:10,574 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:40:10,874 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2019-09-10 07:40:11,195 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2019-09-10 07:40:11,824 WARN L188 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-10 07:40:12,274 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-10 07:40:12,658 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 85 [2019-09-10 07:40:12,926 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:40:13,331 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-10 07:40:15,681 WARN L188 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-10 07:40:16,220 WARN L188 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-10 07:40:16,656 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-10 07:40:17,031 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:40:17,382 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-10 07:40:17,774 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:40:18,212 WARN L188 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:40:18,677 WARN L188 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:40:18,969 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:40:19,314 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:40:19,602 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:40:19,908 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2019-09-10 07:40:20,204 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:40:20,544 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2019-09-10 07:40:20,860 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2019-09-10 07:40:21,114 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:40:21,527 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2019-09-10 07:40:21,811 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:40:22,159 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2019-09-10 07:40:22,505 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 07:40:22,804 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:40:23,408 WARN L188 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-10 07:40:23,959 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69 [2019-09-10 07:40:24,344 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-10 07:40:24,735 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-09-10 07:40:25,168 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 93 [2019-09-10 07:40:25,561 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-10 07:40:26,185 WARN L188 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:40:26,639 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:40:27,199 WARN L188 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-10 07:40:27,568 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2019-09-10 07:40:27,851 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:40:28,225 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-10 07:40:28,898 WARN L188 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 95 [2019-09-10 07:40:29,300 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2019-09-10 07:40:30,075 WARN L188 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:40:30,467 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:40:30,869 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-10 07:40:31,143 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:40:31,598 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2019-09-10 07:40:31,933 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:40:32,672 WARN L188 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2019-09-10 07:40:32,976 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:40:33,378 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 95 [2019-09-10 07:40:33,881 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95 [2019-09-10 07:40:34,398 WARN L188 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 97 [2019-09-10 07:40:34,825 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 95 [2019-09-10 07:40:35,207 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2019-09-10 07:40:35,567 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2019-09-10 07:40:35,995 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 90 [2019-09-10 07:40:36,444 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95 [2019-09-10 07:40:36,802 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:40:37,255 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 93 [2019-09-10 07:40:37,589 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:40:38,037 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:40:38,536 WARN L188 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 93 [2019-09-10 07:40:38,903 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2019-09-10 07:40:39,400 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2019-09-10 07:40:39,787 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 93 [2019-09-10 07:40:40,224 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 97 [2019-09-10 07:40:40,576 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-10 07:40:41,008 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2019-09-10 07:40:41,361 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2019-09-10 07:40:41,704 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2019-09-10 07:40:42,147 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:40:42,915 WARN L188 SmtUtils]: Spent 588.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 89 [2019-09-10 07:40:43,589 WARN L188 SmtUtils]: Spent 512.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2019-09-10 07:40:43,934 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2019-09-10 07:40:44,352 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 91 [2019-09-10 07:40:44,771 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-10 07:40:45,186 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 95 [2019-09-10 07:40:45,558 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2019-09-10 07:40:45,951 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2019-09-10 07:40:46,451 WARN L188 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2019-09-10 07:40:46,767 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:40:47,222 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:40:47,733 WARN L188 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:40:48,123 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 88 [2019-09-10 07:40:48,507 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:40:48,931 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2019-09-10 07:40:49,335 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2019-09-10 07:40:49,776 WARN L188 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:40:50,258 WARN L188 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:40:50,795 WARN L188 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2019-09-10 07:40:51,169 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2019-09-10 07:40:51,546 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 07:40:52,035 WARN L188 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2019-09-10 07:40:52,421 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2019-09-10 07:40:52,877 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-10 07:40:53,432 WARN L188 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2019-09-10 07:40:53,749 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:40:54,121 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2019-09-10 07:40:54,443 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2019-09-10 07:40:54,887 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:40:55,326 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 88 [2019-09-10 07:40:55,691 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:40:56,062 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:40:56,482 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90 [2019-09-10 07:40:56,924 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2019-09-10 07:40:57,250 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2019-09-10 07:40:57,979 WARN L188 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2019-09-10 07:40:58,310 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:40:58,785 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2019-09-10 07:40:59,299 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 97 [2019-09-10 07:40:59,638 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2019-09-10 07:41:00,135 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2019-09-10 07:41:00,593 WARN L188 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2019-09-10 07:41:01,096 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 97 [2019-09-10 07:41:01,597 WARN L188 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-10 07:41:02,202 WARN L188 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 99 [2019-09-10 07:41:02,543 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2019-09-10 07:41:02,929 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2019-09-10 07:41:03,337 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-10 07:41:03,805 WARN L188 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2019-09-10 07:41:04,344 WARN L188 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2019-09-10 07:41:04,690 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:41:05,220 WARN L188 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-10 07:41:05,603 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2019-09-10 07:41:05,965 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2019-09-10 07:41:06,502 WARN L188 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2019-09-10 07:41:06,894 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:41:07,420 WARN L188 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 99 [2019-09-10 07:41:07,751 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:41:08,180 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 93 [2019-09-10 07:41:08,849 WARN L188 SmtUtils]: Spent 462.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 92 [2019-09-10 07:41:09,312 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 95 [2019-09-10 07:41:09,653 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:41:10,369 WARN L188 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 96 [2019-09-10 07:41:10,725 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2019-09-10 07:41:11,283 WARN L188 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2019-09-10 07:41:11,980 WARN L188 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 94 [2019-09-10 07:41:12,285 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:41:12,761 WARN L188 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2019-09-10 07:41:13,115 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-10 07:41:13,507 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-10 07:41:13,881 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87 [2019-09-10 07:41:14,320 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 95 [2019-09-10 07:41:14,727 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 07:41:15,296 WARN L188 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 99 [2019-09-10 07:41:15,706 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:41:16,198 WARN L188 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2019-09-10 07:41:16,601 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2019-09-10 07:41:17,041 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-10 07:41:17,352 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2019-09-10 07:41:17,734 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 92 [2019-09-10 07:41:18,154 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 97 [2019-09-10 07:41:18,532 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 91 [2019-09-10 07:41:18,955 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 07:41:19,295 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:41:19,916 WARN L188 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 101 [2019-09-10 07:41:20,474 WARN L188 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95 [2019-09-10 07:41:20,941 WARN L188 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 90 [2019-09-10 07:41:21,346 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:41:21,738 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 07:41:22,934 WARN L188 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-10 07:41:23,406 WARN L188 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 79 [2019-09-10 07:41:23,729 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:41:24,143 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2019-09-10 07:41:24,647 WARN L188 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2019-09-10 07:41:25,296 WARN L188 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92 [2019-09-10 07:41:25,655 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:41:26,017 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:41:26,321 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2019-09-10 07:41:26,695 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2019-09-10 07:41:27,094 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-10 07:41:27,438 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 07:41:27,777 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:41:28,228 WARN L188 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:41:28,902 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-10 07:41:29,352 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-10 07:41:29,682 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:41:30,049 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:41:30,517 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:41:30,982 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2019-09-10 07:41:31,306 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2019-09-10 07:41:31,837 WARN L188 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:41:32,181 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2019-09-10 07:41:32,547 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:41:32,931 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-10 07:41:33,315 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-10 07:41:33,636 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:41:33,984 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2019-09-10 07:41:34,386 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2019-09-10 07:41:34,781 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2019-09-10 07:41:35,223 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2019-09-10 07:41:35,737 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 96 [2019-09-10 07:41:36,145 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2019-09-10 07:41:36,593 WARN L188 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 85 [2019-09-10 07:41:37,298 WARN L188 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 94 [2019-09-10 07:41:37,785 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2019-09-10 07:41:38,253 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:41:38,608 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2019-09-10 07:41:38,922 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2019-09-10 07:41:40,747 WARN L188 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:41:41,145 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-10 07:41:41,502 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-10 07:41:41,820 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:41:42,211 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:41:42,538 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2019-09-10 07:41:42,884 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2019-09-10 07:41:43,195 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:41:43,646 WARN L188 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-10 07:41:43,981 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:41:44,380 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 98 [2019-09-10 07:41:44,751 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 94 [2019-09-10 07:41:45,299 WARN L188 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:41:45,722 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2019-09-10 07:41:46,220 WARN L188 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 85 [2019-09-10 07:41:46,585 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 07:41:46,972 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2019-09-10 07:41:47,310 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:41:47,694 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:41:48,026 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2019-09-10 07:41:48,324 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 07:41:48,670 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2019-09-10 07:41:49,005 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:41:49,336 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-10 07:41:49,788 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-10 07:41:50,101 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:41:50,468 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89 [2019-09-10 07:41:50,819 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2019-09-10 07:41:51,218 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-10 07:41:51,590 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:41:51,956 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2019-09-10 07:41:52,284 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-10 07:41:52,634 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-10 07:41:53,238 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2019-09-10 07:41:53,905 WARN L188 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2019-09-10 07:41:54,213 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2019-09-10 07:41:54,611 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2019-09-10 07:41:54,935 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-10 07:41:55,553 WARN L188 SmtUtils]: Spent 502.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2019-09-10 07:41:55,945 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 91 [2019-09-10 07:41:56,451 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:41:56,821 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 87 [2019-09-10 07:41:57,141 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2019-09-10 07:41:57,553 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-10 07:41:57,877 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:41:58,205 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-10 07:41:58,579 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-10 07:41:59,047 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-10 07:41:59,716 WARN L188 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 100 [2019-09-10 07:42:00,098 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-10 07:42:00,411 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-09-10 07:42:00,817 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 93 [2019-09-10 07:42:01,170 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2019-09-10 07:42:01,603 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 94 [2019-09-10 07:42:01,987 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-10 07:42:02,458 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-10 07:42:02,932 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-10 07:42:03,483 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2019-09-10 07:42:03,957 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-10 07:42:04,328 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2019-09-10 07:42:04,933 WARN L188 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 98 [2019-09-10 07:42:05,314 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-10 07:42:05,705 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 86 [2019-09-10 07:42:06,108 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2019-09-10 07:42:06,583 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-10 07:42:06,980 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87 [2019-09-10 07:42:07,324 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:42:07,780 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2019-09-10 07:42:08,138 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-10 07:42:08,481 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-10 07:42:08,771 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-10 07:42:09,132 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 82 [2019-09-10 07:42:09,509 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-10 07:42:09,809 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-10 07:42:10,461 WARN L188 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 82 [2019-09-10 07:42:10,840 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-10 07:42:11,245 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-10 07:42:11,673 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-10 07:42:12,104 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2019-09-10 07:42:12,548 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-10 07:42:13,001 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2019-09-10 07:42:13,542 WARN L188 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-10 07:42:14,009 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 99 [2019-09-10 07:42:14,562 WARN L188 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 92 [2019-09-10 07:42:17,215 WARN L188 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 110 DAG size of output: 97 [2019-09-10 07:42:17,750 WARN L188 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-10 07:42:18,328 WARN L188 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90 [2019-09-10 07:42:19,292 WARN L188 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2019-09-10 07:42:19,763 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 92 [2019-09-10 07:42:20,368 WARN L188 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2019-09-10 07:42:20,813 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 92 [2019-09-10 07:42:21,232 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2019-09-10 07:42:21,972 WARN L188 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 101 [2019-09-10 07:42:22,513 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 94 [2019-09-10 07:42:22,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:42:22,595 INFO L93 Difference]: Finished difference Result 309357 states and 395598 transitions. [2019-09-10 07:42:22,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 827 states. [2019-09-10 07:42:22,596 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 106 [2019-09-10 07:42:22,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:42:23,289 INFO L225 Difference]: With dead ends: 309357 [2019-09-10 07:42:23,289 INFO L226 Difference]: Without dead ends: 309357 [2019-09-10 07:42:23,356 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1051 GetRequests, 180 SyntacticMatches, 13 SemanticMatches, 858 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 348413 ImplicationChecksByTransitivity, 339.3s TimeCoverageRelationStatistics Valid=70303, Invalid=668437, Unknown=0, NotChecked=0, Total=738740 [2019-09-10 07:42:23,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309357 states. [2019-09-10 07:42:28,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309357 to 78490. [2019-09-10 07:42:28,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78490 states. [2019-09-10 07:42:28,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78490 states to 78490 states and 101624 transitions. [2019-09-10 07:42:28,875 INFO L78 Accepts]: Start accepts. Automaton has 78490 states and 101624 transitions. Word has length 106 [2019-09-10 07:42:28,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:42:28,876 INFO L475 AbstractCegarLoop]: Abstraction has 78490 states and 101624 transitions. [2019-09-10 07:42:28,876 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-09-10 07:42:28,876 INFO L276 IsEmpty]: Start isEmpty. Operand 78490 states and 101624 transitions. [2019-09-10 07:42:28,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-09-10 07:42:28,888 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:42:28,889 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:42:28,889 INFO L418 AbstractCegarLoop]: === Iteration 35 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:42:28,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:42:28,890 INFO L82 PathProgramCache]: Analyzing trace with hash 319130735, now seen corresponding path program 1 times [2019-09-10 07:42:28,890 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:42:28,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:42:28,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:42:28,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:42:28,891 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:42:28,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:42:29,226 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:42:29,227 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:42:29,227 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:42:29,227 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 108 with the following transitions: [2019-09-10 07:42:29,229 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [113], [115], [117], [120], [123], [126], [128], [130], [133], [136], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [178], [180], [183], [186], [191], [193], [196], [199], [204], [206], [209], [216], [218], [220], [223], [224], [226], [236], [239], [243], [245], [248], [254], [257], [260], [262], [270], [273], [279], [282], [285], [287], [302], [304], [306], [309], [312], [314], [325], [347], [752], [753], [757], [758], [759] [2019-09-10 07:42:29,238 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:42:29,238 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:42:29,284 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:42:29,600 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:42:29,601 INFO L272 AbstractInterpreter]: Visited 101 different actions 379 times. Merged at 41 different actions 246 times. Widened at 11 different actions 25 times. Performed 1291 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1291 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 26 fixpoints after 10 different actions. Largest state had 134 variables. [2019-09-10 07:42:29,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:42:29,602 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:42:29,602 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:42:29,602 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:42:29,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:42:29,619 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:42:29,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:42:29,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 13 conjunts are in the unsatisfiable core [2019-09-10 07:42:29,791 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:42:29,917 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:29,965 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:30,039 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:34,209 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:42:34,209 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:42:34,258 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:34,435 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:34,436 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:34,437 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:34,438 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:37,707 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:42:37,786 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:42:37,795 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:42:37,795 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 29 [2019-09-10 07:42:37,795 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:42:37,796 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-10 07:42:37,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-10 07:42:37,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=696, Unknown=2, NotChecked=0, Total=812 [2019-09-10 07:42:37,797 INFO L87 Difference]: Start difference. First operand 78490 states and 101624 transitions. Second operand 20 states. [2019-09-10 07:42:40,571 WARN L188 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 23 [2019-09-10 07:42:44,657 WARN L188 SmtUtils]: Spent 2.20 s on a formula simplification that was a NOOP. DAG size: 33 [2019-09-10 07:42:50,335 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 31 [2019-09-10 07:42:53,105 WARN L188 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 66 DAG size of output: 37 [2019-09-10 07:42:56,385 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 36 [2019-09-10 07:42:59,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:42:59,114 INFO L93 Difference]: Finished difference Result 176578 states and 228517 transitions. [2019-09-10 07:42:59,114 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2019-09-10 07:42:59,114 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 107 [2019-09-10 07:42:59,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:42:59,507 INFO L225 Difference]: With dead ends: 176578 [2019-09-10 07:42:59,508 INFO L226 Difference]: Without dead ends: 176578 [2019-09-10 07:42:59,510 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 174 SyntacticMatches, 23 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2337 ImplicationChecksByTransitivity, 24.9s TimeCoverageRelationStatistics Valid=1451, Invalid=5519, Unknown=2, NotChecked=0, Total=6972 [2019-09-10 07:43:01,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176578 states. [2019-09-10 07:43:03,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176578 to 96350. [2019-09-10 07:43:03,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96350 states. [2019-09-10 07:43:03,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96350 states to 96350 states and 124661 transitions. [2019-09-10 07:43:03,123 INFO L78 Accepts]: Start accepts. Automaton has 96350 states and 124661 transitions. Word has length 107 [2019-09-10 07:43:03,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:43:03,123 INFO L475 AbstractCegarLoop]: Abstraction has 96350 states and 124661 transitions. [2019-09-10 07:43:03,123 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-10 07:43:03,123 INFO L276 IsEmpty]: Start isEmpty. Operand 96350 states and 124661 transitions. [2019-09-10 07:43:03,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-09-10 07:43:03,136 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:43:03,136 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:43:03,136 INFO L418 AbstractCegarLoop]: === Iteration 36 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:43:03,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:43:03,137 INFO L82 PathProgramCache]: Analyzing trace with hash 513756201, now seen corresponding path program 1 times [2019-09-10 07:43:03,137 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:43:03,138 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:43:03,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:43:03,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:43:03,139 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:43:03,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:43:03,561 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:43:03,561 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:43:03,561 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:43:03,562 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 108 with the following transitions: [2019-09-10 07:43:03,562 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [113], [115], [117], [120], [123], [126], [128], [130], [133], [136], [139], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [173], [176], [178], [180], [183], [186], [191], [193], [196], [199], [204], [206], [209], [216], [218], [220], [223], [224], [226], [236], [239], [243], [245], [248], [254], [257], [260], [262], [270], [273], [279], [282], [285], [287], [304], [306], [309], [312], [314], [752], [753], [757], [758], [759] [2019-09-10 07:43:03,566 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:43:03,567 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:43:03,582 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:43:03,824 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:43:03,826 INFO L272 AbstractInterpreter]: Visited 101 different actions 444 times. Merged at 42 different actions 306 times. Widened at 13 different actions 40 times. Performed 1500 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1500 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 35 fixpoints after 13 different actions. Largest state had 134 variables. [2019-09-10 07:43:03,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:43:03,827 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:43:03,827 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:43:03,827 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:43:03,841 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:43:03,841 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:43:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:43:03,953 INFO L256 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 36 conjunts are in the unsatisfiable core [2019-09-10 07:43:03,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:43:04,259 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:04,260 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:04,573 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 33 [2019-09-10 07:43:04,964 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-10 07:43:05,112 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-10 07:43:05,350 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 38 [2019-09-10 07:43:05,484 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:05,617 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:06,184 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:06,677 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:43:06,677 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:43:07,280 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:07,281 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:07,282 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:08,120 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:08,121 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:08,121 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:08,122 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:08,123 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:08,311 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:08,311 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:08,706 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2019-09-10 07:43:09,151 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-10 07:43:09,152 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:09,530 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2019-09-10 07:43:10,984 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 6 terms [2019-09-10 07:43:11,279 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 68 [2019-09-10 07:43:11,720 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:43:11,724 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:43:11,724 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 20, 21] total 51 [2019-09-10 07:43:11,724 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:43:11,725 INFO L454 AbstractCegarLoop]: Interpolant automaton has 33 states [2019-09-10 07:43:11,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2019-09-10 07:43:11,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=2326, Unknown=0, NotChecked=0, Total=2550 [2019-09-10 07:43:11,725 INFO L87 Difference]: Start difference. First operand 96350 states and 124661 transitions. Second operand 33 states. [2019-09-10 07:43:12,042 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-10 07:43:12,624 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 38 [2019-09-10 07:43:12,868 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2019-09-10 07:43:13,133 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2019-09-10 07:43:13,473 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2019-09-10 07:43:14,665 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2019-09-10 07:43:15,187 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2019-09-10 07:43:16,115 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2019-09-10 07:43:18,852 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-09-10 07:43:19,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:43:19,773 INFO L93 Difference]: Finished difference Result 218339 states and 281869 transitions. [2019-09-10 07:43:19,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2019-09-10 07:43:19,773 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 107 [2019-09-10 07:43:19,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:43:20,084 INFO L225 Difference]: With dead ends: 218339 [2019-09-10 07:43:20,085 INFO L226 Difference]: Without dead ends: 218339 [2019-09-10 07:43:20,086 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 151 SyntacticMatches, 29 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2655 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=866, Invalid=6616, Unknown=0, NotChecked=0, Total=7482 [2019-09-10 07:43:20,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218339 states. [2019-09-10 07:43:22,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218339 to 150938. [2019-09-10 07:43:22,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150938 states. [2019-09-10 07:43:22,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150938 states to 150938 states and 195405 transitions. [2019-09-10 07:43:22,803 INFO L78 Accepts]: Start accepts. Automaton has 150938 states and 195405 transitions. Word has length 107 [2019-09-10 07:43:22,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:43:22,803 INFO L475 AbstractCegarLoop]: Abstraction has 150938 states and 195405 transitions. [2019-09-10 07:43:22,804 INFO L476 AbstractCegarLoop]: Interpolant automaton has 33 states. [2019-09-10 07:43:22,804 INFO L276 IsEmpty]: Start isEmpty. Operand 150938 states and 195405 transitions. [2019-09-10 07:43:22,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2019-09-10 07:43:22,819 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:43:22,819 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:43:22,819 INFO L418 AbstractCegarLoop]: === Iteration 37 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:43:22,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:43:22,820 INFO L82 PathProgramCache]: Analyzing trace with hash -1282028559, now seen corresponding path program 1 times [2019-09-10 07:43:22,820 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:43:22,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:43:22,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:43:22,823 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:43:22,823 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:43:22,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:43:22,998 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:43:22,998 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:43:22,999 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:43:22,999 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 108 with the following transitions: [2019-09-10 07:43:22,999 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [115], [117], [120], [123], [126], [128], [130], [133], [136], [139], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [173], [178], [180], [183], [191], [193], [196], [199], [204], [206], [209], [216], [218], [220], [223], [224], [226], [236], [239], [243], [245], [248], [254], [257], [260], [262], [277], [279], [282], [285], [287], [295], [298], [304], [306], [309], [312], [314], [411], [525], [752], [753], [757], [758], [759] [2019-09-10 07:43:23,001 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:43:23,001 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:43:23,017 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:43:23,251 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:43:23,252 INFO L272 AbstractInterpreter]: Visited 101 different actions 372 times. Merged at 41 different actions 239 times. Widened at 11 different actions 22 times. Performed 1294 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1294 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 25 fixpoints after 11 different actions. Largest state had 134 variables. [2019-09-10 07:43:23,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:43:23,252 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:43:23,253 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:43:23,253 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 07:43:23,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:43:23,289 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:43:23,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:43:23,426 INFO L256 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 14 conjunts are in the unsatisfiable core [2019-09-10 07:43:23,433 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:43:23,503 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:23,536 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:23,567 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:23,628 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:23,767 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:43:23,768 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:43:23,810 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:23,964 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:23,965 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:23,966 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:23,967 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:24,392 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:24,465 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:43:24,469 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:43:24,469 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12, 12] total 29 [2019-09-10 07:43:24,469 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:43:24,469 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-10 07:43:24,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-10 07:43:24,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=700, Unknown=0, NotChecked=0, Total=812 [2019-09-10 07:43:24,471 INFO L87 Difference]: Start difference. First operand 150938 states and 195405 transitions. Second operand 19 states. [2019-09-10 07:43:29,220 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 34 [2019-09-10 07:43:33,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:43:33,519 INFO L93 Difference]: Finished difference Result 267334 states and 343448 transitions. [2019-09-10 07:43:33,519 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2019-09-10 07:43:33,519 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 107 [2019-09-10 07:43:33,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:43:33,864 INFO L225 Difference]: With dead ends: 267334 [2019-09-10 07:43:33,865 INFO L226 Difference]: Without dead ends: 267334 [2019-09-10 07:43:33,865 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 183 SyntacticMatches, 13 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2623 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=1624, Invalid=6748, Unknown=0, NotChecked=0, Total=8372 [2019-09-10 07:43:34,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267334 states. [2019-09-10 07:43:36,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267334 to 150938. [2019-09-10 07:43:36,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150938 states. [2019-09-10 07:43:36,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150938 states to 150938 states and 195405 transitions. [2019-09-10 07:43:36,314 INFO L78 Accepts]: Start accepts. Automaton has 150938 states and 195405 transitions. Word has length 107 [2019-09-10 07:43:36,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:43:36,314 INFO L475 AbstractCegarLoop]: Abstraction has 150938 states and 195405 transitions. [2019-09-10 07:43:36,314 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-10 07:43:36,314 INFO L276 IsEmpty]: Start isEmpty. Operand 150938 states and 195405 transitions. [2019-09-10 07:43:36,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 07:43:36,329 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:43:36,329 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:43:36,329 INFO L418 AbstractCegarLoop]: === Iteration 38 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:43:36,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:43:36,330 INFO L82 PathProgramCache]: Analyzing trace with hash 2000045827, now seen corresponding path program 1 times [2019-09-10 07:43:36,330 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:43:36,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:43:36,331 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:43:36,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:43:36,331 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:43:36,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:43:36,656 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:43:36,656 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:43:36,656 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:43:36,656 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-09-10 07:43:36,657 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [113], [115], [117], [120], [123], [128], [130], [133], [136], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [173], [178], [180], [183], [186], [191], [193], [196], [204], [206], [209], [216], [218], [220], [223], [224], [226], [236], [239], [243], [252], [254], [257], [260], [262], [270], [273], [279], [282], [285], [287], [295], [298], [304], [306], [309], [312], [314], [325], [347], [352], [406], [752], [753], [757], [758], [759] [2019-09-10 07:43:36,658 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:43:36,659 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:43:36,672 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:43:36,887 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:43:36,888 INFO L272 AbstractInterpreter]: Visited 102 different actions 423 times. Merged at 41 different actions 283 times. Widened at 15 different actions 47 times. Performed 1436 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1436 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 31 fixpoints after 13 different actions. Largest state had 134 variables. [2019-09-10 07:43:36,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:43:36,888 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:43:36,888 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:43:36,888 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:43:36,904 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:43:36,904 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:43:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:43:37,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 16 conjunts are in the unsatisfiable core [2019-09-10 07:43:37,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:43:37,070 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:37,106 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:37,164 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:37,297 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:43:37,297 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:43:37,567 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:37,567 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:37,568 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:37,569 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:37,569 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:37,570 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:37,570 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:37,571 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:37,571 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:37,571 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:43:37,604 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:43:37,608 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:43:37,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 27 [2019-09-10 07:43:37,608 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:43:37,609 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-10 07:43:37,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-10 07:43:37,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=631, Unknown=0, NotChecked=0, Total=702 [2019-09-10 07:43:37,610 INFO L87 Difference]: Start difference. First operand 150938 states and 195405 transitions. Second operand 19 states. [2019-09-10 07:43:41,542 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 41 [2019-09-10 07:43:42,580 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 41 [2019-09-10 07:43:43,300 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2019-09-10 07:43:45,271 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2019-09-10 07:43:45,420 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 40 [2019-09-10 07:43:46,226 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 37 [2019-09-10 07:43:46,388 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 40 [2019-09-10 07:43:46,811 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2019-09-10 07:43:47,384 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2019-09-10 07:43:48,377 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2019-09-10 07:43:48,517 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2019-09-10 07:43:48,712 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2019-09-10 07:43:48,879 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2019-09-10 07:43:49,318 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2019-09-10 07:43:49,462 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2019-09-10 07:43:50,854 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2019-09-10 07:43:52,894 WARN L188 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 46 DAG size of output: 29 [2019-09-10 07:43:54,272 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 36 [2019-09-10 07:43:54,453 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 42 [2019-09-10 07:43:54,756 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2019-09-10 07:43:55,137 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38 [2019-09-10 07:43:55,601 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2019-09-10 07:43:55,802 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 44 [2019-09-10 07:43:56,153 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 50 [2019-09-10 07:43:56,325 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2019-09-10 07:43:56,661 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 46 [2019-09-10 07:43:56,989 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 47 [2019-09-10 07:43:57,170 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2019-09-10 07:43:58,200 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 41 [2019-09-10 07:43:58,402 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 47 [2019-09-10 07:43:58,599 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2019-09-10 07:43:58,767 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2019-09-10 07:43:58,932 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2019-09-10 07:43:59,252 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2019-09-10 07:43:59,396 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 35 [2019-09-10 07:43:59,545 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 37 [2019-09-10 07:43:59,825 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38 [2019-09-10 07:44:00,145 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 42 [2019-09-10 07:44:00,293 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 38 [2019-09-10 07:44:01,122 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2019-09-10 07:44:01,568 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2019-09-10 07:44:02,235 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 41 [2019-09-10 07:44:09,998 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 40 [2019-09-10 07:44:10,660 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2019-09-10 07:44:11,204 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 41 [2019-09-10 07:44:11,890 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 43 [2019-09-10 07:44:12,189 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 41 [2019-09-10 07:44:13,416 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2019-09-10 07:44:14,799 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 41 [2019-09-10 07:44:15,119 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2019-09-10 07:44:15,710 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2019-09-10 07:44:16,111 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 48 [2019-09-10 07:44:16,306 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2019-09-10 07:44:17,228 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2019-09-10 07:44:17,417 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 42 [2019-09-10 07:44:19,132 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 36 [2019-09-10 07:44:19,849 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 39 [2019-09-10 07:44:20,033 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 39 [2019-09-10 07:44:20,582 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 42 [2019-09-10 07:44:20,952 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 45 [2019-09-10 07:44:21,500 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 41 [2019-09-10 07:44:22,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:44:22,268 INFO L93 Difference]: Finished difference Result 420174 states and 534587 transitions. [2019-09-10 07:44:22,268 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 277 states. [2019-09-10 07:44:22,268 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 108 [2019-09-10 07:44:22,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:44:22,769 INFO L225 Difference]: With dead ends: 420174 [2019-09-10 07:44:22,769 INFO L226 Difference]: Without dead ends: 420174 [2019-09-10 07:44:22,772 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 501 GetRequests, 199 SyntacticMatches, 2 SemanticMatches, 300 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36399 ImplicationChecksByTransitivity, 33.9s TimeCoverageRelationStatistics Valid=11911, Invalid=78991, Unknown=0, NotChecked=0, Total=90902 [2019-09-10 07:44:23,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420174 states. [2019-09-10 07:44:28,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420174 to 170242. [2019-09-10 07:44:28,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170242 states. [2019-09-10 07:44:28,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170242 states to 170242 states and 220338 transitions. [2019-09-10 07:44:28,742 INFO L78 Accepts]: Start accepts. Automaton has 170242 states and 220338 transitions. Word has length 108 [2019-09-10 07:44:28,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:44:28,743 INFO L475 AbstractCegarLoop]: Abstraction has 170242 states and 220338 transitions. [2019-09-10 07:44:28,743 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-10 07:44:28,743 INFO L276 IsEmpty]: Start isEmpty. Operand 170242 states and 220338 transitions. [2019-09-10 07:44:28,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 07:44:28,756 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:44:28,757 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:44:28,757 INFO L418 AbstractCegarLoop]: === Iteration 39 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:44:28,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:44:28,758 INFO L82 PathProgramCache]: Analyzing trace with hash 733958193, now seen corresponding path program 1 times [2019-09-10 07:44:28,758 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:44:28,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:44:28,759 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:44:28,759 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:44:28,759 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:44:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:44:29,656 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:44:29,657 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:44:29,657 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:44:29,657 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-09-10 07:44:29,657 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [113], [115], [117], [120], [123], [128], [130], [133], [136], [139], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [173], [176], [178], [180], [183], [186], [191], [193], [196], [199], [204], [206], [209], [216], [218], [220], [223], [224], [226], [236], [239], [243], [245], [248], [254], [257], [260], [262], [270], [273], [279], [282], [285], [287], [304], [306], [309], [312], [314], [352], [406], [752], [753], [757], [758], [759] [2019-09-10 07:44:29,659 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:44:29,660 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:44:29,674 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:44:29,919 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:44:29,923 INFO L272 AbstractInterpreter]: Visited 102 different actions 454 times. Merged at 42 different actions 314 times. Widened at 12 different actions 43 times. Performed 1515 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1515 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 35 fixpoints after 14 different actions. Largest state had 134 variables. [2019-09-10 07:44:29,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:44:29,924 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:44:29,924 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:44:29,924 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 07:44:29,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:44:29,941 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 07:44:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:44:30,057 INFO L256 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-10 07:44:30,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:44:30,140 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:44:30,187 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:44:30,235 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:44:30,334 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:44:30,538 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:44:30,538 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:44:30,948 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:44:30,948 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:44:30,949 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:44:30,950 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:44:30,950 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:44:30,951 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:44:30,951 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:44:30,952 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:44:30,952 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:44:30,953 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:44:30,986 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:44:30,990 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:44:30,990 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 11, 11] total 41 [2019-09-10 07:44:30,990 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:44:30,991 INFO L454 AbstractCegarLoop]: Interpolant automaton has 32 states [2019-09-10 07:44:30,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2019-09-10 07:44:30,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=1514, Unknown=0, NotChecked=0, Total=1640 [2019-09-10 07:44:30,991 INFO L87 Difference]: Start difference. First operand 170242 states and 220338 transitions. Second operand 32 states. [2019-09-10 07:44:31,169 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2019-09-10 07:44:36,580 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2019-09-10 07:44:37,724 WARN L188 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 26 DAG size of output: 22 [2019-09-10 07:44:39,431 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2019-09-10 07:44:48,961 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2019-09-10 07:44:53,556 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2019-09-10 07:44:53,962 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2019-09-10 07:44:54,140 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2019-09-10 07:44:54,691 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2019-09-10 07:44:55,583 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2019-09-10 07:44:56,141 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2019-09-10 07:44:57,632 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2019-09-10 07:44:58,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:44:58,530 INFO L93 Difference]: Finished difference Result 327023 states and 419483 transitions. [2019-09-10 07:44:58,530 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 180 states. [2019-09-10 07:44:58,530 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 108 [2019-09-10 07:44:58,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:44:58,902 INFO L225 Difference]: With dead ends: 327023 [2019-09-10 07:44:58,902 INFO L226 Difference]: Without dead ends: 327023 [2019-09-10 07:44:58,904 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 406 GetRequests, 197 SyntacticMatches, 2 SemanticMatches, 207 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15243 ImplicationChecksByTransitivity, 17.6s TimeCoverageRelationStatistics Valid=4775, Invalid=38697, Unknown=0, NotChecked=0, Total=43472 [2019-09-10 07:44:59,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327023 states. [2019-09-10 07:45:01,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327023 to 205851. [2019-09-10 07:45:01,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205851 states. [2019-09-10 07:45:01,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205851 states to 205851 states and 266366 transitions. [2019-09-10 07:45:01,718 INFO L78 Accepts]: Start accepts. Automaton has 205851 states and 266366 transitions. Word has length 108 [2019-09-10 07:45:01,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:45:01,718 INFO L475 AbstractCegarLoop]: Abstraction has 205851 states and 266366 transitions. [2019-09-10 07:45:01,718 INFO L476 AbstractCegarLoop]: Interpolant automaton has 32 states. [2019-09-10 07:45:01,718 INFO L276 IsEmpty]: Start isEmpty. Operand 205851 states and 266366 transitions. [2019-09-10 07:45:01,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 07:45:01,734 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:45:01,734 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:45:01,734 INFO L418 AbstractCegarLoop]: === Iteration 40 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:45:01,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:45:01,735 INFO L82 PathProgramCache]: Analyzing trace with hash -553713199, now seen corresponding path program 1 times [2019-09-10 07:45:01,735 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:45:01,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:45:01,736 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:45:01,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:45:01,736 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:45:01,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:45:01,777 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-10 07:45:01,777 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 07:45:01,777 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 07:45:01,777 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:45:01,778 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 07:45:01,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 07:45:01,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 07:45:01,778 INFO L87 Difference]: Start difference. First operand 205851 states and 266366 transitions. Second operand 3 states. [2019-09-10 07:45:02,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:45:02,159 INFO L93 Difference]: Finished difference Result 137880 states and 174576 transitions. [2019-09-10 07:45:02,159 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 07:45:02,159 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 108 [2019-09-10 07:45:02,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:45:02,346 INFO L225 Difference]: With dead ends: 137880 [2019-09-10 07:45:02,346 INFO L226 Difference]: Without dead ends: 137880 [2019-09-10 07:45:02,346 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 07:45:02,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137880 states. [2019-09-10 07:45:04,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137880 to 137880. [2019-09-10 07:45:04,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 137880 states. [2019-09-10 07:45:04,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137880 states to 137880 states and 174576 transitions. [2019-09-10 07:45:04,470 INFO L78 Accepts]: Start accepts. Automaton has 137880 states and 174576 transitions. Word has length 108 [2019-09-10 07:45:04,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:45:04,470 INFO L475 AbstractCegarLoop]: Abstraction has 137880 states and 174576 transitions. [2019-09-10 07:45:04,470 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 07:45:04,470 INFO L276 IsEmpty]: Start isEmpty. Operand 137880 states and 174576 transitions. [2019-09-10 07:45:04,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 07:45:04,479 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:45:04,479 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:45:04,479 INFO L418 AbstractCegarLoop]: === Iteration 41 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:45:04,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:45:04,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1171506734, now seen corresponding path program 1 times [2019-09-10 07:45:04,480 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:45:04,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:45:04,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:45:04,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:45:04,481 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:45:04,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:45:04,857 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:45:04,857 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:45:04,857 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:45:04,858 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-09-10 07:45:04,858 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [113], [115], [117], [120], [123], [126], [128], [130], [133], [136], [139], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [173], [176], [178], [180], [183], [186], [189], [191], [193], [196], [199], [204], [206], [209], [216], [218], [220], [223], [224], [226], [236], [239], [241], [245], [248], [254], [257], [260], [262], [279], [282], [285], [287], [304], [306], [309], [312], [314], [752], [753], [757], [758], [759] [2019-09-10 07:45:04,861 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:45:04,861 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:45:04,875 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:45:05,147 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:45:05,148 INFO L272 AbstractInterpreter]: Visited 100 different actions 562 times. Merged at 41 different actions 414 times. Widened at 12 different actions 70 times. Performed 1814 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1814 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 46 fixpoints after 13 different actions. Largest state had 134 variables. [2019-09-10 07:45:05,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:45:05,148 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:45:05,148 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:45:05,148 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 07:45:05,162 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:45:05,162 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 07:45:05,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:45:05,280 INFO L256 TraceCheckSpWp]: Trace formula consists of 779 conjuncts, 29 conjunts are in the unsatisfiable core [2019-09-10 07:45:05,283 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:45:05,628 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:05,629 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:05,746 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:05,822 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:05,822 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:05,824 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:06,052 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 31 [2019-09-10 07:45:06,155 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:06,244 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:06,465 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:06,627 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-10 07:45:06,627 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:45:06,862 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:06,930 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:07,018 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:07,227 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:07,227 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:07,228 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:07,864 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-10 07:45:07,877 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-09-10 07:45:07,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16, 16] imperfect sequences [17] total 45 [2019-09-10 07:45:07,878 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 07:45:07,878 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-10 07:45:07,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-10 07:45:07,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1799, Unknown=0, NotChecked=0, Total=1980 [2019-09-10 07:45:07,879 INFO L87 Difference]: Start difference. First operand 137880 states and 174576 transitions. Second operand 16 states. [2019-09-10 07:45:08,773 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 38 [2019-09-10 07:45:09,674 WARN L188 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-10 07:45:11,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:45:11,407 INFO L93 Difference]: Finished difference Result 139327 states and 176352 transitions. [2019-09-10 07:45:11,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-10 07:45:11,407 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 108 [2019-09-10 07:45:11,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:45:11,546 INFO L225 Difference]: With dead ends: 139327 [2019-09-10 07:45:11,546 INFO L226 Difference]: Without dead ends: 139327 [2019-09-10 07:45:11,546 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 184 SyntacticMatches, 5 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 663 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=321, Invalid=2541, Unknown=0, NotChecked=0, Total=2862 [2019-09-10 07:45:11,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139327 states. [2019-09-10 07:45:12,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139327 to 101806. [2019-09-10 07:45:12,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101806 states. [2019-09-10 07:45:12,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101806 states to 101806 states and 128863 transitions. [2019-09-10 07:45:12,577 INFO L78 Accepts]: Start accepts. Automaton has 101806 states and 128863 transitions. Word has length 108 [2019-09-10 07:45:12,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:45:12,578 INFO L475 AbstractCegarLoop]: Abstraction has 101806 states and 128863 transitions. [2019-09-10 07:45:12,578 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-10 07:45:12,578 INFO L276 IsEmpty]: Start isEmpty. Operand 101806 states and 128863 transitions. [2019-09-10 07:45:12,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 07:45:12,584 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:45:12,584 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:45:12,584 INFO L418 AbstractCegarLoop]: === Iteration 42 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:45:12,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:45:12,585 INFO L82 PathProgramCache]: Analyzing trace with hash -2119323118, now seen corresponding path program 1 times [2019-09-10 07:45:12,585 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:45:12,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:45:12,586 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:45:12,586 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:45:12,586 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:45:12,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:45:12,753 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:45:12,753 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:45:12,754 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:45:12,754 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-09-10 07:45:12,754 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [115], [117], [120], [123], [126], [128], [130], [133], [136], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [178], [180], [183], [186], [191], [193], [196], [199], [204], [206], [209], [216], [218], [220], [223], [224], [226], [236], [239], [243], [245], [248], [254], [257], [260], [262], [270], [273], [279], [282], [285], [287], [302], [304], [306], [309], [312], [314], [325], [347], [411], [525], [752], [753], [757], [758], [759] [2019-09-10 07:45:12,756 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:45:12,756 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:45:12,774 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:45:12,943 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:45:12,943 INFO L272 AbstractInterpreter]: Visited 102 different actions 378 times. Merged at 41 different actions 244 times. Widened at 12 different actions 28 times. Performed 1273 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1273 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 26 fixpoints after 11 different actions. Largest state had 134 variables. [2019-09-10 07:45:12,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:45:12,944 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:45:12,944 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:45:12,944 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 07:45:12,967 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:45:12,968 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:45:13,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:45:13,106 INFO L256 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 19 conjunts are in the unsatisfiable core [2019-09-10 07:45:13,110 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:45:13,205 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:13,268 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:13,483 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:45:13,484 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:45:13,617 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:13,618 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:13,618 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:13,619 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:13,653 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:45:13,657 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:45:13,657 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 9] total 22 [2019-09-10 07:45:13,657 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:45:13,657 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-10 07:45:13,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-10 07:45:13,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2019-09-10 07:45:13,658 INFO L87 Difference]: Start difference. First operand 101806 states and 128863 transitions. Second operand 18 states. [2019-09-10 07:45:16,371 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 36 [2019-09-10 07:45:16,951 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2019-09-10 07:45:17,375 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 51 [2019-09-10 07:45:18,448 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2019-09-10 07:45:19,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:45:19,177 INFO L93 Difference]: Finished difference Result 190409 states and 241073 transitions. [2019-09-10 07:45:19,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-09-10 07:45:19,178 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 108 [2019-09-10 07:45:19,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:45:19,377 INFO L225 Difference]: With dead ends: 190409 [2019-09-10 07:45:19,377 INFO L226 Difference]: Without dead ends: 190409 [2019-09-10 07:45:19,378 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 256 GetRequests, 204 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=646, Invalid=2110, Unknown=0, NotChecked=0, Total=2756 [2019-09-10 07:45:19,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190409 states. [2019-09-10 07:45:23,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190409 to 116066. [2019-09-10 07:45:23,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116066 states. [2019-09-10 07:45:23,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116066 states to 116066 states and 146902 transitions. [2019-09-10 07:45:23,680 INFO L78 Accepts]: Start accepts. Automaton has 116066 states and 146902 transitions. Word has length 108 [2019-09-10 07:45:23,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:45:23,680 INFO L475 AbstractCegarLoop]: Abstraction has 116066 states and 146902 transitions. [2019-09-10 07:45:23,680 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-10 07:45:23,680 INFO L276 IsEmpty]: Start isEmpty. Operand 116066 states and 146902 transitions. [2019-09-10 07:45:23,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-09-10 07:45:23,688 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:45:23,688 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:45:23,688 INFO L418 AbstractCegarLoop]: === Iteration 43 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:45:23,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:45:23,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1924697652, now seen corresponding path program 1 times [2019-09-10 07:45:23,689 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:45:23,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:45:23,690 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:45:23,690 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:45:23,690 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:45:23,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:45:24,423 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:45:24,424 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:45:24,424 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:45:24,424 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 109 with the following transitions: [2019-09-10 07:45:24,424 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [115], [117], [120], [123], [126], [128], [130], [133], [136], [139], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [173], [176], [178], [180], [183], [186], [191], [193], [196], [199], [204], [206], [209], [216], [218], [220], [223], [224], [226], [236], [239], [243], [245], [248], [254], [257], [260], [262], [270], [273], [279], [282], [285], [287], [304], [306], [309], [312], [314], [411], [525], [752], [753], [757], [758], [759] [2019-09-10 07:45:24,428 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:45:24,428 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:45:24,441 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:45:24,625 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:45:24,626 INFO L272 AbstractInterpreter]: Visited 102 different actions 439 times. Merged at 42 different actions 302 times. Widened at 12 different actions 37 times. Performed 1472 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1472 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 32 fixpoints after 11 different actions. Largest state had 134 variables. [2019-09-10 07:45:24,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:45:24,626 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:45:24,626 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:45:24,626 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 07:45:24,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:45:24,638 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:45:24,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:45:24,737 INFO L256 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-10 07:45:24,739 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:45:24,819 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:24,858 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:24,897 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:24,979 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:25,163 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:45:25,163 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:45:25,574 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:25,575 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:25,575 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:25,576 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:25,576 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:25,577 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:25,577 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:25,578 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:25,578 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:25,578 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:45:25,611 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:45:25,615 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:45:25,615 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 11, 11] total 41 [2019-09-10 07:45:25,615 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:45:25,615 INFO L454 AbstractCegarLoop]: Interpolant automaton has 32 states [2019-09-10 07:45:25,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2019-09-10 07:45:25,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1519, Unknown=0, NotChecked=0, Total=1640 [2019-09-10 07:45:25,616 INFO L87 Difference]: Start difference. First operand 116066 states and 146902 transitions. Second operand 32 states. [2019-09-10 07:45:25,815 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2019-09-10 07:45:27,125 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2019-09-10 07:45:27,604 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 39 [2019-09-10 07:45:28,456 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 43 [2019-09-10 07:45:28,820 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2019-09-10 07:45:29,105 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-10 07:45:29,346 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2019-09-10 07:45:29,563 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2019-09-10 07:45:29,716 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 40 [2019-09-10 07:45:29,997 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2019-09-10 07:45:30,179 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 44 [2019-09-10 07:45:30,358 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2019-09-10 07:45:30,568 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2019-09-10 07:45:30,927 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2019-09-10 07:45:31,243 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2019-09-10 07:45:31,474 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2019-09-10 07:45:31,667 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 49 [2019-09-10 07:45:31,926 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2019-09-10 07:45:32,152 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2019-09-10 07:45:32,326 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-10 07:45:32,540 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2019-09-10 07:45:32,775 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2019-09-10 07:45:33,055 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2019-09-10 07:45:33,255 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-10 07:45:33,538 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2019-09-10 07:45:33,732 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2019-09-10 07:45:34,087 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-10 07:45:34,470 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2019-09-10 07:45:34,638 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2019-09-10 07:45:35,072 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2019-09-10 07:45:35,250 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2019-09-10 07:45:35,449 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2019-09-10 07:45:35,712 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2019-09-10 07:45:35,910 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2019-09-10 07:45:36,046 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2019-09-10 07:45:36,303 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2019-09-10 07:45:36,460 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2019-09-10 07:45:36,679 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-10 07:45:36,826 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2019-09-10 07:45:37,094 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2019-09-10 07:45:37,303 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-09-10 07:45:37,570 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2019-09-10 07:45:37,724 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2019-09-10 07:45:38,420 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2019-09-10 07:45:38,613 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-09-10 07:45:38,949 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2019-09-10 07:45:39,142 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2019-09-10 07:45:39,425 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-09-10 07:45:39,901 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-10 07:45:40,200 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2019-09-10 07:45:40,403 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-09-10 07:45:40,619 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-09-10 07:45:40,841 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-09-10 07:45:42,205 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2019-09-10 07:45:42,356 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2019-09-10 07:45:42,579 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2019-09-10 07:45:43,014 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2019-09-10 07:45:43,265 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2019-09-10 07:45:43,583 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2019-09-10 07:45:43,748 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-09-10 07:45:43,972 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2019-09-10 07:45:44,260 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2019-09-10 07:45:44,464 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-09-10 07:45:44,635 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2019-09-10 07:45:44,895 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2019-09-10 07:45:46,226 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2019-09-10 07:45:46,467 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2019-09-10 07:45:46,654 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 44 [2019-09-10 07:45:46,962 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2019-09-10 07:45:47,162 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2019-09-10 07:45:47,375 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-09-10 07:45:47,608 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2019-09-10 07:45:47,839 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2019-09-10 07:45:47,996 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2019-09-10 07:45:48,231 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2019-09-10 07:45:48,450 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-10 07:45:48,678 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2019-09-10 07:45:48,915 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2019-09-10 07:45:49,196 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2019-09-10 07:45:49,365 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2019-09-10 07:45:49,648 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2019-09-10 07:45:49,944 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-09-10 07:45:50,190 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2019-09-10 07:45:50,367 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2019-09-10 07:45:50,539 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-09-10 07:45:50,717 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2019-09-10 07:45:50,965 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2019-09-10 07:45:51,397 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2019-09-10 07:45:51,691 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2019-09-10 07:45:51,905 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2019-09-10 07:45:52,089 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2019-09-10 07:45:52,293 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2019-09-10 07:45:52,461 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 39 [2019-09-10 07:45:52,647 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2019-09-10 07:45:52,885 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-09-10 07:45:53,213 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 38 [2019-09-10 07:45:53,392 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2019-09-10 07:45:53,589 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 50 [2019-09-10 07:45:54,055 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-09-10 07:45:54,317 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-09-10 07:45:54,749 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2019-09-10 07:45:54,966 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 44 [2019-09-10 07:45:55,217 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2019-09-10 07:45:55,507 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-09-10 07:45:55,736 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2019-09-10 07:45:56,004 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2019-09-10 07:45:56,394 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2019-09-10 07:45:56,696 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2019-09-10 07:45:56,867 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2019-09-10 07:45:57,193 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2019-09-10 07:45:57,431 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 50 [2019-09-10 07:45:57,755 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2019-09-10 07:45:58,207 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 07:45:58,373 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2019-09-10 07:45:58,549 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-09-10 07:45:58,758 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2019-09-10 07:45:58,995 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2019-09-10 07:45:59,184 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2019-09-10 07:45:59,375 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2019-09-10 07:45:59,687 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62 [2019-09-10 07:45:59,937 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 49 [2019-09-10 07:46:00,151 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 52 [2019-09-10 07:46:00,481 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2019-09-10 07:46:00,651 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2019-09-10 07:46:00,840 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-10 07:46:01,078 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2019-09-10 07:46:01,537 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-09-10 07:46:01,753 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2019-09-10 07:46:02,117 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2019-09-10 07:46:02,406 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2019-09-10 07:46:02,768 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-10 07:46:02,955 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 42 [2019-09-10 07:46:03,197 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2019-09-10 07:46:03,486 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2019-09-10 07:46:03,682 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-09-10 07:46:03,914 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 44 [2019-09-10 07:46:04,229 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2019-09-10 07:46:04,456 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2019-09-10 07:46:04,689 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-09-10 07:46:04,985 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2019-09-10 07:46:05,244 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2019-09-10 07:46:05,411 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2019-09-10 07:46:05,599 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-09-10 07:46:05,889 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 58 [2019-09-10 07:46:06,124 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 47 [2019-09-10 07:46:06,453 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2019-09-10 07:46:06,718 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2019-09-10 07:46:06,874 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2019-09-10 07:46:07,076 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-09-10 07:46:07,248 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2019-09-10 07:46:07,438 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-09-10 07:46:07,633 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2019-09-10 07:46:07,792 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2019-09-10 07:46:08,096 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-09-10 07:46:08,328 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2019-09-10 07:46:08,627 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2019-09-10 07:46:09,020 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 50 [2019-09-10 07:46:09,488 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2019-09-10 07:46:09,690 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2019-09-10 07:46:09,913 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2019-09-10 07:46:10,149 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2019-09-10 07:46:10,343 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2019-09-10 07:46:10,523 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2019-09-10 07:46:10,900 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2019-09-10 07:46:11,227 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2019-09-10 07:46:11,437 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 43 [2019-09-10 07:46:11,759 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-09-10 07:46:11,968 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2019-09-10 07:46:12,339 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2019-09-10 07:46:12,548 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2019-09-10 07:46:12,823 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2019-09-10 07:46:13,053 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2019-09-10 07:46:13,532 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2019-09-10 07:46:13,755 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 51 [2019-09-10 07:46:14,189 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2019-09-10 07:46:14,364 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2019-09-10 07:46:14,645 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2019-09-10 07:46:15,065 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2019-09-10 07:46:15,363 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2019-09-10 07:46:15,602 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2019-09-10 07:46:15,757 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2019-09-10 07:46:15,989 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-09-10 07:46:16,319 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2019-09-10 07:46:16,729 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2019-09-10 07:46:17,792 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 50 [2019-09-10 07:46:17,981 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2019-09-10 07:46:18,342 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-09-10 07:46:18,562 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2019-09-10 07:46:18,928 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 43 [2019-09-10 07:46:19,330 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2019-09-10 07:46:19,558 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2019-09-10 07:46:19,913 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-09-10 07:46:20,234 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-10 07:46:20,773 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2019-09-10 07:46:21,067 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2019-09-10 07:46:21,227 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 40 [2019-09-10 07:46:21,524 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2019-09-10 07:46:21,884 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2019-09-10 07:46:22,287 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2019-09-10 07:46:22,465 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2019-09-10 07:46:22,826 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2019-09-10 07:46:23,300 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2019-09-10 07:46:23,574 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2019-09-10 07:46:23,875 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 56 [2019-09-10 07:46:24,297 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2019-09-10 07:46:25,017 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2019-09-10 07:46:25,217 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-10 07:46:25,515 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-10 07:46:25,738 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2019-09-10 07:46:26,054 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2019-09-10 07:46:26,286 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-09-10 07:46:26,698 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2019-09-10 07:46:27,058 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-10 07:46:27,265 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2019-09-10 07:46:27,553 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2019-09-10 07:46:27,850 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2019-09-10 07:46:28,152 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2019-09-10 07:46:28,485 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2019-09-10 07:46:28,838 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 43 [2019-09-10 07:46:29,084 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-09-10 07:46:29,307 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2019-09-10 07:46:29,519 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-10 07:46:29,950 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2019-09-10 07:46:30,189 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2019-09-10 07:46:30,372 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2019-09-10 07:46:31,068 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2019-09-10 07:46:31,306 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2019-09-10 07:46:31,491 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2019-09-10 07:46:31,788 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2019-09-10 07:46:32,011 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-09-10 07:46:33,434 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2019-09-10 07:46:33,770 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2019-09-10 07:46:34,081 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-10 07:46:34,299 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2019-09-10 07:46:34,507 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-09-10 07:46:34,726 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-10 07:46:34,974 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2019-09-10 07:46:35,227 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2019-09-10 07:46:35,520 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2019-09-10 07:46:35,782 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-10 07:46:36,211 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2019-09-10 07:46:36,419 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-10 07:46:36,774 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2019-09-10 07:46:37,005 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2019-09-10 07:46:37,448 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-09-10 07:46:38,123 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2019-09-10 07:46:38,427 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2019-09-10 07:46:39,599 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2019-09-10 07:46:40,086 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-10 07:46:40,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:46:40,413 INFO L93 Difference]: Finished difference Result 278068 states and 347427 transitions. [2019-09-10 07:46:40,414 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 342 states. [2019-09-10 07:46:40,414 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 108 [2019-09-10 07:46:40,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:46:40,756 INFO L225 Difference]: With dead ends: 278068 [2019-09-10 07:46:40,756 INFO L226 Difference]: Without dead ends: 278068 [2019-09-10 07:46:40,761 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 572 GetRequests, 197 SyntacticMatches, 2 SemanticMatches, 373 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58441 ImplicationChecksByTransitivity, 60.2s TimeCoverageRelationStatistics Valid=13729, Invalid=126521, Unknown=0, NotChecked=0, Total=140250 [2019-09-10 07:46:40,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278068 states. [2019-09-10 07:46:42,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278068 to 150097. [2019-09-10 07:46:42,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 150097 states. [2019-09-10 07:46:43,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150097 states to 150097 states and 190057 transitions. [2019-09-10 07:46:43,030 INFO L78 Accepts]: Start accepts. Automaton has 150097 states and 190057 transitions. Word has length 108 [2019-09-10 07:46:43,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:46:43,031 INFO L475 AbstractCegarLoop]: Abstraction has 150097 states and 190057 transitions. [2019-09-10 07:46:43,031 INFO L476 AbstractCegarLoop]: Interpolant automaton has 32 states. [2019-09-10 07:46:43,031 INFO L276 IsEmpty]: Start isEmpty. Operand 150097 states and 190057 transitions. [2019-09-10 07:46:43,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 07:46:43,038 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:46:43,038 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:46:43,038 INFO L418 AbstractCegarLoop]: === Iteration 44 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:46:43,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:46:43,039 INFO L82 PathProgramCache]: Analyzing trace with hash 119747584, now seen corresponding path program 1 times [2019-09-10 07:46:43,039 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:46:43,039 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:46:43,040 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:46:43,040 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:46:43,040 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:46:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:46:43,565 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:46:43,565 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:46:43,565 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:46:43,565 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 110 with the following transitions: [2019-09-10 07:46:43,566 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [113], [115], [117], [120], [123], [128], [130], [133], [136], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [173], [176], [178], [180], [183], [186], [191], [193], [196], [199], [204], [206], [209], [216], [218], [220], [223], [224], [226], [236], [239], [243], [245], [248], [254], [257], [260], [262], [270], [273], [279], [282], [285], [287], [304], [306], [309], [312], [314], [325], [347], [352], [406], [752], [753], [757], [758], [759] [2019-09-10 07:46:43,567 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:46:43,568 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:46:43,581 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:46:43,740 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:46:43,740 INFO L272 AbstractInterpreter]: Visited 103 different actions 388 times. Merged at 42 different actions 254 times. Widened at 11 different actions 25 times. Performed 1356 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1356 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 28 fixpoints after 11 different actions. Largest state had 134 variables. [2019-09-10 07:46:43,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:46:43,740 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:46:43,741 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:46:43,741 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) [2019-09-10 07:46:43,754 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:46:43,755 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:46:43,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:46:43,855 INFO L256 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 14 conjunts are in the unsatisfiable core [2019-09-10 07:46:43,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:46:43,923 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:43,964 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:44,034 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:44,110 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:44,111 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:44,111 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:44,375 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:44,428 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:44,545 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:46:44,545 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:46:44,597 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:44,840 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:44,841 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:44,842 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:44,843 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:46:44,870 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:46:44,877 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:46:44,878 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 11] total 34 [2019-09-10 07:46:44,878 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:46:44,878 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-09-10 07:46:44,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-09-10 07:46:44,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=1013, Unknown=0, NotChecked=0, Total=1122 [2019-09-10 07:46:44,878 INFO L87 Difference]: Start difference. First operand 150097 states and 190057 transitions. Second operand 26 states. [2019-09-10 07:46:45,981 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2019-09-10 07:46:46,154 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2019-09-10 07:46:46,633 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 47 [2019-09-10 07:46:47,531 WARN L188 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 47 [2019-09-10 07:46:47,690 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 42 [2019-09-10 07:46:48,219 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2019-09-10 07:46:48,853 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 51 [2019-09-10 07:46:49,071 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 44 [2019-09-10 07:46:49,257 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 48 [2019-09-10 07:46:49,811 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 53 [2019-09-10 07:46:49,972 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2019-09-10 07:46:50,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:46:50,222 INFO L93 Difference]: Finished difference Result 190965 states and 238989 transitions. [2019-09-10 07:46:50,222 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2019-09-10 07:46:50,222 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 109 [2019-09-10 07:46:50,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:46:50,424 INFO L225 Difference]: With dead ends: 190965 [2019-09-10 07:46:50,425 INFO L226 Difference]: Without dead ends: 190965 [2019-09-10 07:46:50,425 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 262 GetRequests, 194 SyntacticMatches, 7 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 701 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=797, Invalid=3109, Unknown=0, NotChecked=0, Total=3906 [2019-09-10 07:46:50,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190965 states. [2019-09-10 07:46:51,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190965 to 141523. [2019-09-10 07:46:51,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 141523 states. [2019-09-10 07:46:55,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141523 states to 141523 states and 178923 transitions. [2019-09-10 07:46:55,704 INFO L78 Accepts]: Start accepts. Automaton has 141523 states and 178923 transitions. Word has length 109 [2019-09-10 07:46:55,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:46:55,704 INFO L475 AbstractCegarLoop]: Abstraction has 141523 states and 178923 transitions. [2019-09-10 07:46:55,704 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-09-10 07:46:55,704 INFO L276 IsEmpty]: Start isEmpty. Operand 141523 states and 178923 transitions. [2019-09-10 07:46:55,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 07:46:55,709 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:46:55,709 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 07:46:55,710 INFO L418 AbstractCegarLoop]: === Iteration 45 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:46:55,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:46:55,710 INFO L82 PathProgramCache]: Analyzing trace with hash 1150141581, now seen corresponding path program 1 times [2019-09-10 07:46:55,710 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:46:55,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:46:55,711 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:46:55,711 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:46:55,711 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:46:55,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:46:55,881 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 07:46:55,881 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:46:55,882 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:46:55,882 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 110 with the following transitions: [2019-09-10 07:46:55,882 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [113], [115], [117], [120], [123], [128], [130], [133], [136], [139], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [173], [176], [178], [180], [183], [186], [189], [191], [193], [196], [199], [202], [204], [206], [209], [212], [216], [218], [220], [223], [224], [226], [229], [234], [236], [239], [254], [257], [260], [262], [279], [282], [285], [287], [304], [306], [309], [312], [314], [352], [406], [752], [753], [757], [758], [759] [2019-09-10 07:46:55,884 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:46:55,884 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:46:55,902 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:46:56,042 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:46:56,043 INFO L272 AbstractInterpreter]: Visited 102 different actions 307 times. Merged at 41 different actions 176 times. Widened at 6 different actions 6 times. Performed 1139 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1139 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 31 fixpoints after 13 different actions. Largest state had 134 variables. [2019-09-10 07:46:56,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:46:56,043 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:46:56,043 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:46:56,043 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:46:56,071 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:46:56,071 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:46:56,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:46:56,187 INFO L256 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 24 conjunts are in the unsatisfiable core [2019-09-10 07:46:56,191 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:46:56,362 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 07:46:56,363 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:46:56,501 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 4 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-10 07:46:56,513 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:46:56,513 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 14 [2019-09-10 07:46:56,514 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:46:56,514 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-10 07:46:56,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-10 07:46:56,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2019-09-10 07:46:56,515 INFO L87 Difference]: Start difference. First operand 141523 states and 178923 transitions. Second operand 9 states. [2019-09-10 07:46:56,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:46:56,964 INFO L93 Difference]: Finished difference Result 165444 states and 205741 transitions. [2019-09-10 07:46:56,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-10 07:46:56,964 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 109 [2019-09-10 07:46:56,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:46:57,132 INFO L225 Difference]: With dead ends: 165444 [2019-09-10 07:46:57,133 INFO L226 Difference]: Without dead ends: 165444 [2019-09-10 07:46:57,133 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 209 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2019-09-10 07:46:57,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165444 states. [2019-09-10 07:46:58,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165444 to 145075. [2019-09-10 07:46:58,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145075 states. [2019-09-10 07:46:58,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145075 states to 145075 states and 183124 transitions. [2019-09-10 07:46:58,341 INFO L78 Accepts]: Start accepts. Automaton has 145075 states and 183124 transitions. Word has length 109 [2019-09-10 07:46:58,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:46:58,342 INFO L475 AbstractCegarLoop]: Abstraction has 145075 states and 183124 transitions. [2019-09-10 07:46:58,342 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-10 07:46:58,342 INFO L276 IsEmpty]: Start isEmpty. Operand 145075 states and 183124 transitions. [2019-09-10 07:46:58,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 07:46:58,345 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:46:58,345 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:46:58,346 INFO L418 AbstractCegarLoop]: === Iteration 46 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:46:58,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:46:58,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1661588781, now seen corresponding path program 1 times [2019-09-10 07:46:58,346 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:46:58,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:46:58,347 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:46:58,347 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:46:58,347 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:46:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:46:59,273 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:46:59,274 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:46:59,274 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:46:59,274 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 110 with the following transitions: [2019-09-10 07:46:59,274 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [113], [115], [117], [120], [123], [126], [128], [130], [133], [136], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [173], [176], [178], [180], [183], [186], [189], [191], [193], [196], [199], [204], [206], [209], [216], [218], [220], [223], [224], [226], [236], [239], [241], [245], [248], [254], [257], [260], [262], [279], [282], [285], [287], [304], [306], [309], [312], [314], [325], [347], [752], [753], [757], [758], [759] [2019-09-10 07:46:59,277 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:46:59,277 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:46:59,290 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:46:59,457 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:46:59,457 INFO L272 AbstractInterpreter]: Visited 101 different actions 374 times. Merged at 41 different actions 244 times. Widened at 11 different actions 20 times. Performed 1289 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1289 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 27 fixpoints after 9 different actions. Largest state had 134 variables. [2019-09-10 07:46:59,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:46:59,458 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:46:59,458 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:46:59,458 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 07:46:59,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:46:59,485 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:46:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:46:59,591 INFO L256 TraceCheckSpWp]: Trace formula consists of 778 conjuncts, 51 conjunts are in the unsatisfiable core [2019-09-10 07:46:59,594 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:46:59,988 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:47:00,460 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:47:01,159 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:47:01,706 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:47:01,707 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:47:02,511 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:47:02,633 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:47:02,802 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:47:03,025 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2019-09-10 07:47:03,580 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:47:03,587 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:47:03,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 23, 22] total 55 [2019-09-10 07:47:03,588 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:47:03,588 INFO L454 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-09-10 07:47:03,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-09-10 07:47:03,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=2698, Unknown=0, NotChecked=0, Total=2970 [2019-09-10 07:47:03,589 INFO L87 Difference]: Start difference. First operand 145075 states and 183124 transitions. Second operand 39 states. [2019-09-10 07:47:03,771 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-10 07:47:04,949 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2019-09-10 07:47:05,610 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-09-10 07:47:06,903 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-10 07:47:07,300 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-10 07:47:10,039 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-10 07:47:12,090 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2019-09-10 07:47:12,660 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-09-10 07:47:13,195 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-09-10 07:47:13,528 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2019-09-10 07:47:16,088 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2019-09-10 07:47:17,081 WARN L188 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-10 07:47:20,817 WARN L188 SmtUtils]: Spent 942.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-10 07:47:23,871 WARN L188 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-10 07:47:25,144 WARN L188 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-10 07:47:25,893 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-09-10 07:47:26,248 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-10 07:47:27,113 WARN L188 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-10 07:47:27,619 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-10 07:47:28,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 07:47:28,095 INFO L93 Difference]: Finished difference Result 203770 states and 254605 transitions. [2019-09-10 07:47:28,095 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2019-09-10 07:47:28,095 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 109 [2019-09-10 07:47:28,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 07:47:28,312 INFO L225 Difference]: With dead ends: 203770 [2019-09-10 07:47:28,313 INFO L226 Difference]: Without dead ends: 203770 [2019-09-10 07:47:28,313 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 176 SyntacticMatches, 6 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2352 ImplicationChecksByTransitivity, 13.8s TimeCoverageRelationStatistics Valid=1191, Invalid=7739, Unknown=0, NotChecked=0, Total=8930 [2019-09-10 07:47:28,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203770 states. [2019-09-10 07:47:32,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203770 to 126516. [2019-09-10 07:47:32,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 126516 states. [2019-09-10 07:47:32,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126516 states to 126516 states and 159453 transitions. [2019-09-10 07:47:32,272 INFO L78 Accepts]: Start accepts. Automaton has 126516 states and 159453 transitions. Word has length 109 [2019-09-10 07:47:32,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 07:47:32,272 INFO L475 AbstractCegarLoop]: Abstraction has 126516 states and 159453 transitions. [2019-09-10 07:47:32,272 INFO L476 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-09-10 07:47:32,273 INFO L276 IsEmpty]: Start isEmpty. Operand 126516 states and 159453 transitions. [2019-09-10 07:47:32,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2019-09-10 07:47:32,276 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 07:47:32,276 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:47:32,276 INFO L418 AbstractCegarLoop]: === Iteration 47 === [mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 07:47:32,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:47:32,276 INFO L82 PathProgramCache]: Analyzing trace with hash -787643852, now seen corresponding path program 1 times [2019-09-10 07:47:32,276 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 07:47:32,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:47:32,277 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:47:32,277 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 07:47:32,277 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 07:47:32,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:47:32,955 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:47:32,955 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:47:32,955 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-10 07:47:32,955 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 110 with the following transitions: [2019-09-10 07:47:32,955 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [9], [12], [15], [18], [21], [24], [27], [30], [33], [36], [39], [42], [45], [48], [51], [55], [58], [61], [65], [68], [71], [75], [78], [81], [84], [88], [91], [94], [98], [100], [103], [107], [110], [115], [117], [120], [123], [128], [130], [133], [136], [139], [141], [143], [146], [150], [153], [156], [160], [162], [165], [170], [173], [178], [180], [183], [186], [191], [193], [196], [199], [202], [204], [206], [209], [216], [218], [220], [223], [224], [226], [236], [239], [243], [254], [257], [260], [262], [270], [273], [279], [282], [285], [287], [295], [298], [304], [306], [309], [312], [314], [352], [406], [411], [525], [752], [753], [757], [758], [759] [2019-09-10 07:47:32,957 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 07:47:32,957 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 07:47:32,968 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-10 07:47:33,097 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-10 07:47:33,097 INFO L272 AbstractInterpreter]: Visited 103 different actions 363 times. Merged at 42 different actions 230 times. Widened at 12 different actions 18 times. Performed 1272 root evaluator evaluations with a maximum evaluation depth of 5. Performed 1272 inverse root evaluator evaluations with a maximum inverse evaluation depth of 5. Found 25 fixpoints after 11 different actions. Largest state had 134 variables. [2019-09-10 07:47:33,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 07:47:33,098 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-10 07:47:33,098 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 07:47:33,098 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 07:47:33,114 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 07:47:33,115 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 07:47:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 07:47:33,210 INFO L256 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 19 conjunts are in the unsatisfiable core [2019-09-10 07:47:33,213 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 07:47:33,324 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:47:33,402 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:47:33,403 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:47:33,403 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:47:34,578 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:47:34,578 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 07:47:34,858 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:47:34,858 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 07:47:34,915 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 07:47:34,925 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-10 07:47:34,925 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 11, 11] total 33 [2019-09-10 07:47:34,926 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-10 07:47:34,926 INFO L454 AbstractCegarLoop]: Interpolant automaton has 30 states [2019-09-10 07:47:34,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2019-09-10 07:47:34,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=971, Unknown=0, NotChecked=0, Total=1056 [2019-09-10 07:47:34,926 INFO L87 Difference]: Start difference. First operand 126516 states and 159453 transitions. Second operand 30 states. [2019-09-10 07:47:36,387 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 26 [2019-09-10 07:47:36,576 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 30 [2019-09-10 07:47:37,301 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 30 [2019-09-10 07:47:37,601 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 45 [2019-09-10 07:47:37,865 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2019-09-10 07:47:38,472 WARN L188 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2019-09-10 07:47:39,837 WARN L188 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 68 [2019-09-10 07:47:40,239 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 48 [2019-09-10 07:47:41,310 WARN L188 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2019-09-10 07:47:41,930 WARN L188 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2019-09-10 07:47:43,115 WARN L188 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 69 [2019-09-10 07:47:44,161 WARN L188 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2019-09-10 07:47:45,029 WARN L188 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2019-09-10 07:47:45,460 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 39 [2019-09-10 07:47:45,731 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 43 [2019-09-10 07:47:46,085 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 48