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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.trace.refinement.strategy SIFA_TAIPAN --sifa.abstract.domain CompoundDomain --rcfgbuilder.size.of.a.code.block LoopFreeBlock --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_QUICK -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label47.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:40:36,162 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-10-15 01:40:36,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:40:36,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:40:36,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:40:36,215 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-15 01:40:36,231 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:40:36,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:40:36,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:40:36,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:40:36,233 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:40:36,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:40:36,234 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:40:36,234 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:40:36,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:40:36,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:40:36,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:40:36,235 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:40:36,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:40:36,235 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:40:36,235 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:40:36,235 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:40:36,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:40:36,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:40:36,236 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:40:36,236 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:40:36,236 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:40:36,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:40:36,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:40:36,237 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:40:36,237 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:40:36,238 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:40:36,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:40:36,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:40:36,238 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> SIFA_TAIPAN Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> CompoundDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_QUICK [2019-10-15 01:40:36,585 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:40:36,603 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:40:36,607 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:40:36,609 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:40:36,609 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:40:36,612 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label47.c [2019-10-15 01:40:36,676 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d03165b/b199851cb227466f8d7f76a4f38531df/FLAG2ca3214c1 [2019-10-15 01:40:37,284 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:40:37,285 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label47.c [2019-10-15 01:40:37,309 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d03165b/b199851cb227466f8d7f76a4f38531df/FLAG2ca3214c1 [2019-10-15 01:40:37,514 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d03165b/b199851cb227466f8d7f76a4f38531df [2019-10-15 01:40:37,525 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:40:37,527 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:40:37,528 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:40:37,528 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:40:37,532 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:40:37,533 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:40:37" (1/1) ... [2019-10-15 01:40:37,536 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@79c32c4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:37, skipping insertion in model container [2019-10-15 01:40:37,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:40:37" (1/1) ... [2019-10-15 01:40:37,544 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:40:37,602 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:40:38,173 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:40:38,184 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:40:38,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:40:38,353 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:40:38,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:38 WrapperNode [2019-10-15 01:40:38,354 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:40:38,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:40:38,355 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:40:38,355 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:40:38,366 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:38" (1/1) ... [2019-10-15 01:40:38,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:38" (1/1) ... [2019-10-15 01:40:38,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:38" (1/1) ... [2019-10-15 01:40:38,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:38" (1/1) ... [2019-10-15 01:40:38,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:38" (1/1) ... [2019-10-15 01:40:38,445 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:38" (1/1) ... [2019-10-15 01:40:38,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:38" (1/1) ... [2019-10-15 01:40:38,462 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:40:38,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:40:38,463 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:40:38,463 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:40:38,464 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:38" (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 [2019-10-15 01:40:38,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:40:38,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:40:38,553 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-15 01:40:38,554 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:40:38,554 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-15 01:40:38,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:40:38,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:40:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:40:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:40:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:40:38,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:40:40,593 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:40:40,594 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:40:40,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:40:40 BoogieIcfgContainer [2019-10-15 01:40:40,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:40:40,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:40:40,599 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:40:40,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:40:40,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:40:37" (1/3) ... [2019-10-15 01:40:40,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28742487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:40:40, skipping insertion in model container [2019-10-15 01:40:40,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:40:38" (2/3) ... [2019-10-15 01:40:40,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28742487 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:40:40, skipping insertion in model container [2019-10-15 01:40:40,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:40:40" (3/3) ... [2019-10-15 01:40:40,607 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label47.c [2019-10-15 01:40:40,617 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:40:40,627 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:40:40,640 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:40:40,671 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:40:40,671 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:40:40,672 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:40:40,672 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:40:40,672 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:40:40,672 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:40:40,672 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:40:40,673 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:40:40,697 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2019-10-15 01:40:40,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-10-15 01:40:40,708 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:40,710 INFO L380 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] [2019-10-15 01:40:40,712 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:40,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:40,720 INFO L82 PathProgramCache]: Analyzing trace with hash 826719236, now seen corresponding path program 1 times [2019-10-15 01:40:40,730 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:40,731 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139690730] [2019-10-15 01:40:40,731 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:40,732 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:40,732 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:41,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:41,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:41,248 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139690730] [2019-10-15 01:40:41,249 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:40:41,249 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:40:41,250 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231395657] [2019-10-15 01:40:41,255 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:40:41,255 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:41,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:40:41,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:40:41,274 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 3 states. [2019-10-15 01:40:41,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:41,750 INFO L93 Difference]: Finished difference Result 246 states and 454 transitions. [2019-10-15 01:40:41,750 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:40:41,752 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2019-10-15 01:40:41,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:41,768 INFO L225 Difference]: With dead ends: 246 [2019-10-15 01:40:41,768 INFO L226 Difference]: Without dead ends: 157 [2019-10-15 01:40:41,773 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:40:41,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-10-15 01:40:41,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2019-10-15 01:40:41,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-10-15 01:40:41,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 279 transitions. [2019-10-15 01:40:41,877 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 279 transitions. Word has length 77 [2019-10-15 01:40:41,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:41,879 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 279 transitions. [2019-10-15 01:40:41,879 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:40:41,880 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 279 transitions. [2019-10-15 01:40:41,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-10-15 01:40:41,888 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:41,888 INFO L380 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] [2019-10-15 01:40:41,889 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:41,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:41,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1195767397, now seen corresponding path program 1 times [2019-10-15 01:40:41,890 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:41,891 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465838224] [2019-10-15 01:40:41,891 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:41,891 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:41,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:41,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:42,030 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:42,031 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465838224] [2019-10-15 01:40:42,031 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:40:42,032 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:40:42,032 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133101433] [2019-10-15 01:40:42,034 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:40:42,035 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:42,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:40:42,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:40:42,036 INFO L87 Difference]: Start difference. First operand 157 states and 279 transitions. Second operand 6 states. [2019-10-15 01:40:42,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:42,653 INFO L93 Difference]: Finished difference Result 402 states and 725 transitions. [2019-10-15 01:40:42,655 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:40:42,655 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2019-10-15 01:40:42,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:42,663 INFO L225 Difference]: With dead ends: 402 [2019-10-15 01:40:42,663 INFO L226 Difference]: Without dead ends: 250 [2019-10-15 01:40:42,666 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:40:42,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2019-10-15 01:40:42,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 238. [2019-10-15 01:40:42,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2019-10-15 01:40:42,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 407 transitions. [2019-10-15 01:40:42,693 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 407 transitions. Word has length 87 [2019-10-15 01:40:42,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:42,693 INFO L462 AbstractCegarLoop]: Abstraction has 238 states and 407 transitions. [2019-10-15 01:40:42,693 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:40:42,694 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 407 transitions. [2019-10-15 01:40:42,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-10-15 01:40:42,696 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:42,697 INFO L380 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] [2019-10-15 01:40:42,697 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:42,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:42,697 INFO L82 PathProgramCache]: Analyzing trace with hash -2128789001, now seen corresponding path program 1 times [2019-10-15 01:40:42,698 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:42,698 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298314366] [2019-10-15 01:40:42,698 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:42,698 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:42,698 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:42,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:42,852 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:42,852 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298314366] [2019-10-15 01:40:42,853 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:40:42,853 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:40:42,853 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272237083] [2019-10-15 01:40:42,854 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:40:42,854 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:42,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:40:42,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:40:42,859 INFO L87 Difference]: Start difference. First operand 238 states and 407 transitions. Second operand 3 states. [2019-10-15 01:40:43,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:43,297 INFO L93 Difference]: Finished difference Result 700 states and 1242 transitions. [2019-10-15 01:40:43,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:40:43,300 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 88 [2019-10-15 01:40:43,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:43,306 INFO L225 Difference]: With dead ends: 700 [2019-10-15 01:40:43,306 INFO L226 Difference]: Without dead ends: 467 [2019-10-15 01:40:43,309 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:40:43,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2019-10-15 01:40:43,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 467. [2019-10-15 01:40:43,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2019-10-15 01:40:43,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 737 transitions. [2019-10-15 01:40:43,345 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 737 transitions. Word has length 88 [2019-10-15 01:40:43,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:43,346 INFO L462 AbstractCegarLoop]: Abstraction has 467 states and 737 transitions. [2019-10-15 01:40:43,346 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:40:43,347 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 737 transitions. [2019-10-15 01:40:43,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-10-15 01:40:43,352 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:43,352 INFO L380 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] [2019-10-15 01:40:43,352 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:43,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:43,353 INFO L82 PathProgramCache]: Analyzing trace with hash -847394153, now seen corresponding path program 1 times [2019-10-15 01:40:43,353 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:43,353 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573331937] [2019-10-15 01:40:43,353 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:43,354 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:43,354 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:43,471 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:43,471 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573331937] [2019-10-15 01:40:43,472 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:40:43,472 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-15 01:40:43,472 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [45472381] [2019-10-15 01:40:43,474 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-15 01:40:43,474 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:43,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-15 01:40:43,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:40:43,475 INFO L87 Difference]: Start difference. First operand 467 states and 737 transitions. Second operand 4 states. [2019-10-15 01:40:44,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:44,222 INFO L93 Difference]: Finished difference Result 1539 states and 2560 transitions. [2019-10-15 01:40:44,223 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-15 01:40:44,223 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 89 [2019-10-15 01:40:44,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:44,233 INFO L225 Difference]: With dead ends: 1539 [2019-10-15 01:40:44,233 INFO L226 Difference]: Without dead ends: 1077 [2019-10-15 01:40:44,236 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-10-15 01:40:44,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1077 states. [2019-10-15 01:40:44,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1077 to 700. [2019-10-15 01:40:44,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 700 states. [2019-10-15 01:40:44,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 1148 transitions. [2019-10-15 01:40:44,316 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 1148 transitions. Word has length 89 [2019-10-15 01:40:44,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:44,317 INFO L462 AbstractCegarLoop]: Abstraction has 700 states and 1148 transitions. [2019-10-15 01:40:44,317 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-15 01:40:44,317 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 1148 transitions. [2019-10-15 01:40:44,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-10-15 01:40:44,324 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:44,325 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:40:44,325 INFO L410 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:44,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:44,325 INFO L82 PathProgramCache]: Analyzing trace with hash 579694187, now seen corresponding path program 1 times [2019-10-15 01:40:44,326 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:44,326 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809592112] [2019-10-15 01:40:44,326 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:44,326 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:44,327 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:44,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:44,489 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:44,490 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [809592112] [2019-10-15 01:40:44,490 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:40:44,490 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:40:44,490 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827356726] [2019-10-15 01:40:44,491 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:40:44,492 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:44,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:40:44,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:40:44,493 INFO L87 Difference]: Start difference. First operand 700 states and 1148 transitions. Second operand 3 states. [2019-10-15 01:40:44,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:44,941 INFO L93 Difference]: Finished difference Result 1932 states and 3329 transitions. [2019-10-15 01:40:44,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:40:44,942 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 94 [2019-10-15 01:40:44,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:44,951 INFO L225 Difference]: With dead ends: 1932 [2019-10-15 01:40:44,952 INFO L226 Difference]: Without dead ends: 1237 [2019-10-15 01:40:44,955 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:40:44,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2019-10-15 01:40:45,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 1237. [2019-10-15 01:40:45,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1237 states. [2019-10-15 01:40:45,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1237 states to 1237 states and 2003 transitions. [2019-10-15 01:40:45,010 INFO L78 Accepts]: Start accepts. Automaton has 1237 states and 2003 transitions. Word has length 94 [2019-10-15 01:40:45,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:45,011 INFO L462 AbstractCegarLoop]: Abstraction has 1237 states and 2003 transitions. [2019-10-15 01:40:45,011 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:40:45,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1237 states and 2003 transitions. [2019-10-15 01:40:45,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-10-15 01:40:45,017 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:45,017 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:40:45,018 INFO L410 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:45,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:45,018 INFO L82 PathProgramCache]: Analyzing trace with hash 95050327, now seen corresponding path program 1 times [2019-10-15 01:40:45,019 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:45,019 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147457614] [2019-10-15 01:40:45,019 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:45,019 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:45,019 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:45,157 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:45,157 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147457614] [2019-10-15 01:40:45,158 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:40:45,158 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:40:45,158 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801867222] [2019-10-15 01:40:45,159 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:40:45,159 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:40:45,159 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:40:45,159 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:40:45,160 INFO L87 Difference]: Start difference. First operand 1237 states and 2003 transitions. Second operand 6 states. [2019-10-15 01:40:45,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:40:45,766 INFO L93 Difference]: Finished difference Result 2677 states and 4482 transitions. [2019-10-15 01:40:45,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:40:45,766 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 121 [2019-10-15 01:40:45,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:40:45,781 INFO L225 Difference]: With dead ends: 2677 [2019-10-15 01:40:45,782 INFO L226 Difference]: Without dead ends: 1445 [2019-10-15 01:40:45,790 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-15 01:40:45,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1445 states. [2019-10-15 01:40:45,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1445 to 1036. [2019-10-15 01:40:45,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1036 states. [2019-10-15 01:40:45,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1036 states to 1036 states and 1455 transitions. [2019-10-15 01:40:45,854 INFO L78 Accepts]: Start accepts. Automaton has 1036 states and 1455 transitions. Word has length 121 [2019-10-15 01:40:45,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:40:45,855 INFO L462 AbstractCegarLoop]: Abstraction has 1036 states and 1455 transitions. [2019-10-15 01:40:45,855 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:40:45,855 INFO L276 IsEmpty]: Start isEmpty. Operand 1036 states and 1455 transitions. [2019-10-15 01:40:45,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2019-10-15 01:40:45,863 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:40:45,869 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-15 01:40:45,870 INFO L410 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:40:45,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:40:45,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1205469238, now seen corresponding path program 1 times [2019-10-15 01:40:45,871 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:40:45,872 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107041833] [2019-10-15 01:40:45,872 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:45,872 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:40:45,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:40:45,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:45,969 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:45,969 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107041833] [2019-10-15 01:40:45,969 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1498129563] [2019-10-15 01:40:45,969 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-10-15 01:40:46,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:40:46,077 INFO L256 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-15 01:40:46,095 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:40:46,126 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:46,126 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:40:46,230 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:40:46,231 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [122524402] [2019-10-15 01:40:46,263 INFO L162 IcfgInterpreter]: Started Sifa with 81 locations of interest [2019-10-15 01:40:46,264 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 01:40:46,270 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 01:40:46,278 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 01:40:46,279 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 01:40:46,644 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 98 for LOIs [2019-10-15 01:40:48,897 INFO L199 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 139 for LOIs [2019-10-15 01:40:49,475 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-10-15 01:40:49,660 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-10-15 01:40:49,839 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-10-15 01:40:50,133 WARN L191 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-10-15 01:40:50,307 WARN L191 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-10-15 01:40:50,490 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 164 [2019-10-15 01:40:50,809 WARN L191 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2019-10-15 01:40:50,953 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2019-10-15 01:40:51,289 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2019-10-15 01:40:51,477 WARN L191 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 154 [2019-10-15 01:40:51,637 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-10-15 01:40:51,927 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:52,068 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:52,253 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2019-10-15 01:40:52,837 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:52,966 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:53,131 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-10-15 01:40:53,337 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:53,456 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:53,581 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-10-15 01:40:53,804 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:53,923 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:54,061 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2019-10-15 01:40:54,600 WARN L191 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:54,743 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:54,868 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-10-15 01:40:55,075 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:55,193 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:55,331 WARN L191 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2019-10-15 01:40:55,817 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:55,934 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:56,064 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-10-15 01:40:56,266 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:56,428 WARN L191 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:56,555 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 178 [2019-10-15 01:40:56,743 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:56,861 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:56,986 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-10-15 01:40:57,159 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:57,292 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:57,417 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-10-15 01:40:57,590 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:57,708 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:57,832 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-10-15 01:40:58,012 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:58,129 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:58,280 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-10-15 01:40:58,563 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:58,681 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-10-15 01:40:58,806 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-10-15 01:40:58,971 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:59,087 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:59,207 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-10-15 01:40:59,382 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:59,500 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:59,646 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-10-15 01:40:59,829 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:40:59,942 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:00,075 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-10-15 01:41:00,240 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:00,353 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:00,478 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-10-15 01:41:00,662 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:00,777 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:00,900 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 169 [2019-10-15 01:41:01,070 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:01,183 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:01,309 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-10-15 01:41:01,472 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:01,586 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:01,711 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-10-15 01:41:01,894 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:02,007 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:02,133 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 174 [2019-10-15 01:41:02,311 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:02,424 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:02,545 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-10-15 01:41:02,733 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:02,866 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:02,986 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-10-15 01:41:03,305 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:03,419 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:03,536 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-10-15 01:41:03,699 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:03,811 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:03,941 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-10-15 01:41:04,118 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:04,230 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:04,350 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-10-15 01:41:04,512 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:04,624 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:04,748 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-10-15 01:41:04,929 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:05,043 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:05,191 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 177 [2019-10-15 01:41:05,367 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:05,480 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:05,608 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-10-15 01:41:05,773 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:05,885 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-10-15 01:41:06,004 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-10-15 01:41:06,157 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:41:06,265 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:41:06,384 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-10-15 01:41:06,537 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:41:06,644 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:41:06,758 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 168 [2019-10-15 01:41:06,920 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:41:07,028 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:41:07,220 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:41:07,331 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:41:07,451 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-10-15 01:41:07,640 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:41:07,765 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:41:07,881 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 173 [2019-10-15 01:41:08,053 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:41:08,159 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:41:08,270 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-10-15 01:41:08,427 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:41:08,536 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:41:08,647 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-10-15 01:41:08,836 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:41:08,944 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-10-15 01:41:09,072 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 171 [2019-10-15 01:41:09,417 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 167 [2019-10-15 01:41:09,766 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-15 01:41:09,919 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-15 01:41:10,121 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-15 01:41:10,380 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-15 01:41:10,485 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-10-15 01:41:10,851 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-10-15 01:41:11,326 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2019-10-15 01:41:11,574 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-15 01:41:11,679 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-10-15 01:41:12,048 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 175 [2019-10-15 01:41:12,407 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-15 01:41:12,792 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2019-10-15 01:41:12,955 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-10-15 01:41:13,157 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-15 01:41:13,502 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-15 01:41:13,851 WARN L191 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-10-15 01:41:14,197 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 165 [2019-10-15 01:41:14,546 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 170 [2019-10-15 01:41:14,877 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 163 [2019-10-15 01:41:15,029 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 138 [2019-10-15 01:41:15,223 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 163