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/Problem03_label06.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-15 01:43:18,401 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-10-15 01:43:18,484 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-15 01:43:18,486 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-15 01:43:18,489 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-15 01:43:18,490 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 01:43:18,509 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-15 01:43:18,509 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-15 01:43:18,511 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-15 01:43:18,511 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-15 01:43:18,511 INFO L138 SettingsManager]: * Use SBE=true [2019-10-15 01:43:18,512 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-15 01:43:18,512 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-15 01:43:18,512 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-15 01:43:18,512 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-15 01:43:18,512 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-15 01:43:18,513 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-15 01:43:18,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-15 01:43:18,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-15 01:43:18,514 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-15 01:43:18,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-15 01:43:18,515 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-15 01:43:18,515 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-15 01:43:18,515 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-15 01:43:18,515 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-15 01:43:18,516 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-15 01:43:18,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-15 01:43:18,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-15 01:43:18,516 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-15 01:43:18,516 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-15 01:43:18,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-15 01:43:18,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-15 01:43:18,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-15 01:43:18,517 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-15 01:43:18,517 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 01:43:18,804 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-15 01:43:18,822 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-15 01:43:18,826 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-15 01:43:18,827 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-15 01:43:18,827 INFO L275 PluginConnector]: CDTParser initialized [2019-10-15 01:43:18,828 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label06.c [2019-10-15 01:43:18,899 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6325c2fa5/d444b71f72af4db7b6055fa13f5729cb/FLAG416aca056 [2019-10-15 01:43:19,578 INFO L306 CDTParser]: Found 1 translation units. [2019-10-15 01:43:19,580 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem03_label06.c [2019-10-15 01:43:19,599 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6325c2fa5/d444b71f72af4db7b6055fa13f5729cb/FLAG416aca056 [2019-10-15 01:43:19,795 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6325c2fa5/d444b71f72af4db7b6055fa13f5729cb [2019-10-15 01:43:19,806 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-15 01:43:19,807 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-15 01:43:19,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-15 01:43:19,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-15 01:43:19,813 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-15 01:43:19,814 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:43:19" (1/1) ... [2019-10-15 01:43:19,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ebafe9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:19, skipping insertion in model container [2019-10-15 01:43:19,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 01:43:19" (1/1) ... [2019-10-15 01:43:19,823 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-15 01:43:19,899 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-15 01:43:20,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:43:20,643 INFO L188 MainTranslator]: Completed pre-run [2019-10-15 01:43:21,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-15 01:43:21,041 INFO L192 MainTranslator]: Completed translation [2019-10-15 01:43:21,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:21 WrapperNode [2019-10-15 01:43:21,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-15 01:43:21,043 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-15 01:43:21,043 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-15 01:43:21,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-15 01:43:21,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:21" (1/1) ... [2019-10-15 01:43:21,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:21" (1/1) ... [2019-10-15 01:43:21,106 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:21" (1/1) ... [2019-10-15 01:43:21,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:21" (1/1) ... [2019-10-15 01:43:21,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:21" (1/1) ... [2019-10-15 01:43:21,183 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:21" (1/1) ... [2019-10-15 01:43:21,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:21" (1/1) ... [2019-10-15 01:43:21,206 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-15 01:43:21,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-15 01:43:21,207 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-15 01:43:21,207 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-15 01:43:21,208 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:21" (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 01:43:21,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-15 01:43:21,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-15 01:43:21,278 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-10-15 01:43:21,278 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-15 01:43:21,278 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-10-15 01:43:21,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-15 01:43:21,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-15 01:43:21,279 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-10-15 01:43:21,279 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-15 01:43:21,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-15 01:43:21,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-15 01:43:24,375 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-15 01:43:24,375 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-10-15 01:43:24,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:43:24 BoogieIcfgContainer [2019-10-15 01:43:24,377 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-15 01:43:24,381 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-15 01:43:24,381 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-15 01:43:24,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-15 01:43:24,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 01:43:19" (1/3) ... [2019-10-15 01:43:24,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2651c173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:43:24, skipping insertion in model container [2019-10-15 01:43:24,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 01:43:21" (2/3) ... [2019-10-15 01:43:24,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2651c173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 01:43:24, skipping insertion in model container [2019-10-15 01:43:24,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 01:43:24" (3/3) ... [2019-10-15 01:43:24,394 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem03_label06.c [2019-10-15 01:43:24,404 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-15 01:43:24,416 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-15 01:43:24,427 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-15 01:43:24,463 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-15 01:43:24,463 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-15 01:43:24,463 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-15 01:43:24,464 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-15 01:43:24,464 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-15 01:43:24,464 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-15 01:43:24,464 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-15 01:43:24,464 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-15 01:43:24,492 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states. [2019-10-15 01:43:24,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2019-10-15 01:43:24,511 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:43:24,513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:43:24,515 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:43:24,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:43:24,522 INFO L82 PathProgramCache]: Analyzing trace with hash 136470310, now seen corresponding path program 1 times [2019-10-15 01:43:24,531 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:43:24,531 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989933501] [2019-10-15 01:43:24,532 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:24,532 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:24,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:43:24,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:43:25,252 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 01:43:25,253 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989933501] [2019-10-15 01:43:25,254 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:43:25,254 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:43:25,255 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275019122] [2019-10-15 01:43:25,259 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:43:25,260 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:43:25,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:43:25,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:43:25,276 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 3 states. [2019-10-15 01:43:26,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:43:26,295 INFO L93 Difference]: Finished difference Result 462 states and 886 transitions. [2019-10-15 01:43:26,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:43:26,297 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2019-10-15 01:43:26,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:43:26,326 INFO L225 Difference]: With dead ends: 462 [2019-10-15 01:43:26,326 INFO L226 Difference]: Without dead ends: 301 [2019-10-15 01:43:26,333 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 01:43:26,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2019-10-15 01:43:26,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 301. [2019-10-15 01:43:26,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2019-10-15 01:43:26,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 529 transitions. [2019-10-15 01:43:26,402 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 529 transitions. Word has length 149 [2019-10-15 01:43:26,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:43:26,403 INFO L462 AbstractCegarLoop]: Abstraction has 301 states and 529 transitions. [2019-10-15 01:43:26,403 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:43:26,403 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 529 transitions. [2019-10-15 01:43:26,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2019-10-15 01:43:26,409 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:43:26,409 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:43:26,409 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:43:26,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:43:26,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1532431598, now seen corresponding path program 1 times [2019-10-15 01:43:26,410 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:43:26,410 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974879287] [2019-10-15 01:43:26,411 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:26,411 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:26,411 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:43:26,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:43:26,685 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 01:43:26,686 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974879287] [2019-10-15 01:43:26,686 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:43:26,686 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-15 01:43:26,687 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254802412] [2019-10-15 01:43:26,689 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-15 01:43:26,690 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:43:26,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-15 01:43:26,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-15 01:43:26,691 INFO L87 Difference]: Start difference. First operand 301 states and 529 transitions. Second operand 3 states. [2019-10-15 01:43:27,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:43:27,593 INFO L93 Difference]: Finished difference Result 891 states and 1588 transitions. [2019-10-15 01:43:27,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-15 01:43:27,593 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2019-10-15 01:43:27,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:43:27,600 INFO L225 Difference]: With dead ends: 891 [2019-10-15 01:43:27,601 INFO L226 Difference]: Without dead ends: 595 [2019-10-15 01:43:27,604 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 01:43:27,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 595 states. [2019-10-15 01:43:27,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 595 to 595. [2019-10-15 01:43:27,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 595 states. [2019-10-15 01:43:27,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 595 states to 595 states and 1031 transitions. [2019-10-15 01:43:27,642 INFO L78 Accepts]: Start accepts. Automaton has 595 states and 1031 transitions. Word has length 161 [2019-10-15 01:43:27,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:43:27,643 INFO L462 AbstractCegarLoop]: Abstraction has 595 states and 1031 transitions. [2019-10-15 01:43:27,643 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-15 01:43:27,643 INFO L276 IsEmpty]: Start isEmpty. Operand 595 states and 1031 transitions. [2019-10-15 01:43:27,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2019-10-15 01:43:27,649 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:43:27,649 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:43:27,650 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:43:27,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:43:27,650 INFO L82 PathProgramCache]: Analyzing trace with hash 244844697, now seen corresponding path program 1 times [2019-10-15 01:43:27,651 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:43:27,651 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867258511] [2019-10-15 01:43:27,651 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:27,651 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:27,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:43:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:43:27,786 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:43:27,786 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867258511] [2019-10-15 01:43:27,787 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-15 01:43:27,787 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-15 01:43:27,787 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688506356] [2019-10-15 01:43:27,788 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-15 01:43:27,788 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-10-15 01:43:27,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-15 01:43:27,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-10-15 01:43:27,789 INFO L87 Difference]: Start difference. First operand 595 states and 1031 transitions. Second operand 6 states. [2019-10-15 01:43:29,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-15 01:43:29,180 INFO L93 Difference]: Finished difference Result 1821 states and 3273 transitions. [2019-10-15 01:43:29,182 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-15 01:43:29,182 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2019-10-15 01:43:29,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-15 01:43:29,192 INFO L225 Difference]: With dead ends: 1821 [2019-10-15 01:43:29,193 INFO L226 Difference]: Without dead ends: 1231 [2019-10-15 01:43:29,195 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 01:43:29,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1231 states. [2019-10-15 01:43:29,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1231 to 1209. [2019-10-15 01:43:29,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1209 states. [2019-10-15 01:43:29,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1209 states to 1209 states and 1889 transitions. [2019-10-15 01:43:29,261 INFO L78 Accepts]: Start accepts. Automaton has 1209 states and 1889 transitions. Word has length 176 [2019-10-15 01:43:29,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-15 01:43:29,262 INFO L462 AbstractCegarLoop]: Abstraction has 1209 states and 1889 transitions. [2019-10-15 01:43:29,262 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-15 01:43:29,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1209 states and 1889 transitions. [2019-10-15 01:43:29,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2019-10-15 01:43:29,272 INFO L372 BasicCegarLoop]: Found error trace [2019-10-15 01:43:29,272 INFO L380 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:43:29,273 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-15 01:43:29,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-15 01:43:29,273 INFO L82 PathProgramCache]: Analyzing trace with hash -998225753, now seen corresponding path program 1 times [2019-10-15 01:43:29,273 INFO L157 tionRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-10-15 01:43:29,274 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617375429] [2019-10-15 01:43:29,274 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:29,274 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-15 01:43:29,274 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-15 01:43:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:43:29,456 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:43:29,457 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617375429] [2019-10-15 01:43:29,457 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1044777801] [2019-10-15 01:43:29,458 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 01:43:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-15 01:43:29,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 1021 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-15 01:43:29,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-15 01:43:29,915 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:43:29,916 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-15 01:43:30,041 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-15 01:43:30,042 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [371944363] [2019-10-15 01:43:30,083 INFO L162 IcfgInterpreter]: Started Sifa with 153 locations of interest [2019-10-15 01:43:30,083 INFO L169 IcfgInterpreter]: Building call graph [2019-10-15 01:43:30,093 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-10-15 01:43:30,105 INFO L179 IcfgInterpreter]: Starting interpretation [2019-10-15 01:43:30,106 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-10-15 01:43:30,748 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 182 [2019-10-15 01:43:31,173 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 208 for LOIs [2019-10-15 01:43:31,478 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 298 [2019-10-15 01:43:31,767 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 231 [2019-10-15 01:43:31,900 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 304 [2019-10-15 01:43:32,157 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2019-10-15 01:43:32,430 WARN L191 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 278 [2019-10-15 01:43:33,383 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 275 [2019-10-15 01:43:33,832 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2019-10-15 01:43:34,788 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 234 [2019-10-15 01:43:35,369 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-15 01:43:35,482 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-15 01:43:35,749 WARN L191 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 365 [2019-10-15 01:43:35,888 WARN L191 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2019-10-15 01:43:36,009 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2019-10-15 01:43:36,215 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 370 DAG size of output: 366 [2019-10-15 01:43:36,332 WARN L191 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 305 [2019-10-15 01:43:37,449 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-15 01:43:37,554 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-15 01:43:37,721 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 366 DAG size of output: 366 [2019-10-15 01:43:37,828 WARN L191 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2019-10-15 01:43:37,933 WARN L191 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 366 [2019-10-15 01:43:38,108 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 367 DAG size of output: 367 [2019-10-15 01:43:38,860 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 228 [2019-10-15 01:43:39,403 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 368 DAG size of output: 366 [2019-10-15 01:43:39,518 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-15 01:43:39,699 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 366 DAG size of output: 366 [2019-10-15 01:43:40,885 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 368 DAG size of output: 366 [2019-10-15 01:43:40,994 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-10-15 01:43:41,146 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 366 DAG size of output: 366 [2019-10-15 01:43:41,684 INFO L199 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 170 for LOIs [2019-10-15 01:43:42,144 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 123 [2019-10-15 01:43:42,783 WARN L191 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 137 [2019-10-15 01:43:42,981 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-10-15 01:43:43,160 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2019-10-15 01:43:43,887 WARN L191 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 307 DAG size of output: 144 [2019-10-15 01:43:44,116 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-10-15 01:43:44,346 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 176 [2019-10-15 01:43:45,248 WARN L191 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 343 DAG size of output: 148 [2019-10-15 01:43:45,500 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-10-15 01:43:45,762 WARN L191 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 182 [2019-10-15 01:43:46,321 WARN L191 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 148 [2019-10-15 01:43:46,575 WARN L191 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 148 [2019-10-15 01:43:46,855 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-10-15 01:43:49,311 WARN L191 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 367 DAG size of output: 195 [2019-10-15 01:43:49,966 WARN L191 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2019-10-15 01:43:50,630 WARN L191 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 235 [2019-10-15 01:43:53,209 WARN L191 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 527 DAG size of output: 195 [2019-10-15 01:43:53,845 WARN L191 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2019-10-15 01:43:54,500 WARN L191 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 232 DAG size of output: 231 [2019-10-15 01:43:56,670 WARN L191 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 444 DAG size of output: 195