/usr/bin/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_label01.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 01:33:27,702 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-11-07 01:33:27,786 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 01:33:27,787 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 01:33:27,788 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 01:33:27,788 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 [2019-11-07 01:33:27,802 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 01:33:27,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 01:33:27,803 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 01:33:27,804 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 01:33:27,804 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 01:33:27,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 01:33:27,804 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 01:33:27,805 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 01:33:27,805 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 01:33:27,805 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 01:33:27,805 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 01:33:27,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 01:33:27,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 01:33:27,806 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 01:33:27,806 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 01:33:27,806 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 01:33:27,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 01:33:27,807 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 01:33:27,807 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 01:33:27,807 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 01:33:27,807 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 01:33:27,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 01:33:27,808 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 01:33:27,808 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 01:33:27,808 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 01:33:27,808 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 01:33:27,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 01:33:27,809 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 01:33:27,809 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 [2019-11-07 01:33:28,076 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 01:33:28,090 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 01:33:28,093 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 01:33:28,095 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 01:33:28,095 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 01:33:28,096 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label01.c [2019-11-07 01:33:28,173 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f05fdd2c/ae4ab127cb6e4120a24dcc07b0e568e8/FLAGe40341794 [2019-11-07 01:33:28,772 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 01:33:28,773 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label01.c [2019-11-07 01:33:28,786 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f05fdd2c/ae4ab127cb6e4120a24dcc07b0e568e8/FLAGe40341794 [2019-11-07 01:33:29,032 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f05fdd2c/ae4ab127cb6e4120a24dcc07b0e568e8 [2019-11-07 01:33:29,046 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 01:33:29,063 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 01:33:29,068 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 01:33:29,068 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 01:33:29,074 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 01:33:29,078 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:33:29" (1/1) ... [2019-11-07 01:33:29,086 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19c4359a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:29, skipping insertion in model container [2019-11-07 01:33:29,086 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:33:29" (1/1) ... [2019-11-07 01:33:29,108 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 01:33:29,177 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 01:33:29,696 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:33:29,709 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 01:33:29,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:33:29,853 INFO L192 MainTranslator]: Completed translation [2019-11-07 01:33:29,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:29 WrapperNode [2019-11-07 01:33:29,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 01:33:29,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 01:33:29,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 01:33:29,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 01:33:29,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:29" (1/1) ... [2019-11-07 01:33:29,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:29" (1/1) ... [2019-11-07 01:33:29,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:29" (1/1) ... [2019-11-07 01:33:29,907 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:29" (1/1) ... [2019-11-07 01:33:29,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:29" (1/1) ... [2019-11-07 01:33:29,994 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:29" (1/1) ... [2019-11-07 01:33:30,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:29" (1/1) ... [2019-11-07 01:33:30,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 01:33:30,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 01:33:30,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 01:33:30,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 01:33:30,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:29" (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 [2019-11-07 01:33:30,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 01:33:30,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 01:33:30,087 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-07 01:33:30,088 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 01:33:30,088 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-07 01:33:30,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 01:33:30,089 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 01:33:30,090 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 01:33:30,090 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 01:33:30,090 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 01:33:30,091 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 01:33:31,970 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 01:33:31,970 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 01:33:31,972 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:33:31 BoogieIcfgContainer [2019-11-07 01:33:31,972 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 01:33:31,974 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 01:33:31,974 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 01:33:31,978 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 01:33:31,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:33:29" (1/3) ... [2019-11-07 01:33:31,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd86c54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:33:31, skipping insertion in model container [2019-11-07 01:33:31,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:33:29" (2/3) ... [2019-11-07 01:33:31,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cd86c54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:33:31, skipping insertion in model container [2019-11-07 01:33:31,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:33:31" (3/3) ... [2019-11-07 01:33:31,988 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label01.c [2019-11-07 01:33:32,002 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 01:33:32,013 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 01:33:32,025 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 01:33:32,063 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 01:33:32,063 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 01:33:32,063 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 01:33:32,063 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 01:33:32,064 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 01:33:32,064 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 01:33:32,064 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 01:33:32,064 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 01:33:32,096 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2019-11-07 01:33:32,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-11-07 01:33:32,105 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:33:32,106 INFO L410 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] [2019-11-07 01:33:32,108 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:33:32,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:33:32,113 INFO L82 PathProgramCache]: Analyzing trace with hash 826816100, now seen corresponding path program 1 times [2019-11-07 01:33:32,120 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:33:32,121 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911334265] [2019-11-07 01:33:32,121 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:33:32,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:33:32,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:33:32,575 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911334265] [2019-11-07 01:33:32,576 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:33:32,577 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 01:33:32,578 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103695580] [2019-11-07 01:33:32,584 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 01:33:32,585 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:33:32,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 01:33:32,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 01:33:32,607 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 3 states. [2019-11-07 01:33:33,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:33:33,118 INFO L93 Difference]: Finished difference Result 246 states and 454 transitions. [2019-11-07 01:33:33,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 01:33:33,120 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2019-11-07 01:33:33,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:33:33,143 INFO L225 Difference]: With dead ends: 246 [2019-11-07 01:33:33,143 INFO L226 Difference]: Without dead ends: 157 [2019-11-07 01:33:33,150 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 3 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 01:33:33,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-11-07 01:33:33,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2019-11-07 01:33:33,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-11-07 01:33:33,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 273 transitions. [2019-11-07 01:33:33,248 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 273 transitions. Word has length 77 [2019-11-07 01:33:33,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:33:33,249 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 273 transitions. [2019-11-07 01:33:33,249 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 01:33:33,249 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 273 transitions. [2019-11-07 01:33:33,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-11-07 01:33:33,257 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:33:33,257 INFO L410 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] [2019-11-07 01:33:33,257 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:33:33,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:33:33,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1195670533, now seen corresponding path program 1 times [2019-11-07 01:33:33,258 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:33:33,259 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837327518] [2019-11-07 01:33:33,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:33:33,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:33:33,378 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:33:33,379 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837327518] [2019-11-07 01:33:33,379 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:33:33,379 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 01:33:33,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105860976] [2019-11-07 01:33:33,381 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 01:33:33,381 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:33:33,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 01:33:33,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-07 01:33:33,382 INFO L87 Difference]: Start difference. First operand 157 states and 273 transitions. Second operand 6 states. [2019-11-07 01:33:33,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:33:33,964 INFO L93 Difference]: Finished difference Result 479 states and 861 transitions. [2019-11-07 01:33:33,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 01:33:33,964 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2019-11-07 01:33:33,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:33:33,971 INFO L225 Difference]: With dead ends: 479 [2019-11-07 01:33:33,971 INFO L226 Difference]: Without dead ends: 327 [2019-11-07 01:33:33,975 INFO L630 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 [2019-11-07 01:33:33,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2019-11-07 01:33:34,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 315. [2019-11-07 01:33:34,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2019-11-07 01:33:34,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 543 transitions. [2019-11-07 01:33:34,035 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 543 transitions. Word has length 87 [2019-11-07 01:33:34,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:33:34,035 INFO L462 AbstractCegarLoop]: Abstraction has 315 states and 543 transitions. [2019-11-07 01:33:34,035 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 01:33:34,035 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 543 transitions. [2019-11-07 01:33:34,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-11-07 01:33:34,043 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:33:34,043 INFO L410 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-07 01:33:34,046 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:33:34,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:33:34,047 INFO L82 PathProgramCache]: Analyzing trace with hash -498205204, now seen corresponding path program 1 times [2019-11-07 01:33:34,047 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:33:34,047 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937977729] [2019-11-07 01:33:34,047 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:33:34,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:33:34,239 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:33:34,239 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937977729] [2019-11-07 01:33:34,240 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45772721] [2019-11-07 01:33:34,240 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 [2019-11-07 01:33:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:33:34,351 INFO L256 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-07 01:33:34,361 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:33:34,454 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-07 01:33:34,454 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:33:34,523 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-11-07 01:33:34,524 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 01:33:34,527 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [6] total 7 [2019-11-07 01:33:34,528 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191938491] [2019-11-07 01:33:34,530 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 01:33:34,531 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:33:34,531 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 01:33:34,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-07 01:33:34,532 INFO L87 Difference]: Start difference. First operand 315 states and 543 transitions. Second operand 3 states. [2019-11-07 01:33:34,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:33:34,989 INFO L93 Difference]: Finished difference Result 929 states and 1656 transitions. [2019-11-07 01:33:34,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 01:33:34,992 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2019-11-07 01:33:34,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:33:34,998 INFO L225 Difference]: With dead ends: 929 [2019-11-07 01:33:34,998 INFO L226 Difference]: Without dead ends: 619 [2019-11-07 01:33:35,002 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 220 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-11-07 01:33:35,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2019-11-07 01:33:35,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 619. [2019-11-07 01:33:35,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 619 states. [2019-11-07 01:33:35,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 1027 transitions. [2019-11-07 01:33:35,051 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 1027 transitions. Word has length 111 [2019-11-07 01:33:35,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:33:35,052 INFO L462 AbstractCegarLoop]: Abstraction has 619 states and 1027 transitions. [2019-11-07 01:33:35,052 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 01:33:35,052 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 1027 transitions. [2019-11-07 01:33:35,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2019-11-07 01:33:35,061 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:33:35,061 INFO L410 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, 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] [2019-11-07 01:33:35,266 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:33:35,267 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:33:35,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:33:35,267 INFO L82 PathProgramCache]: Analyzing trace with hash 528989554, now seen corresponding path program 1 times [2019-11-07 01:33:35,268 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:33:35,269 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845212234] [2019-11-07 01:33:35,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:33:35,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:33:35,468 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:33:35,468 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845212234] [2019-11-07 01:33:35,469 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1111967553] [2019-11-07 01:33:35,469 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:33:35,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:33:35,572 INFO L256 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-07 01:33:35,578 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:33:35,652 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:33:35,653 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:33:35,773 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:33:35,774 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [841753978] [2019-11-07 01:33:35,805 INFO L159 IcfgInterpreter]: Started Sifa with 81 locations of interest [2019-11-07 01:33:35,805 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 01:33:35,812 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 01:33:35,819 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 01:33:35,820 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 01:33:36,059 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 100 for LOIs [2019-11-07 01:33:37,507 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 174 [2019-11-07 01:33:37,637 INFO L197 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 138 for LOIs [2019-11-07 01:33:37,886 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2019-11-07 01:33:38,183 WARN L191 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2019-11-07 01:33:38,610 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2019-11-07 01:33:38,875 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2019-11-07 01:33:39,409 WARN L191 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-11-07 01:33:39,713 WARN L191 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-11-07 01:33:40,027 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-11-07 01:33:40,230 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 153 [2019-11-07 01:33:40,539 WARN L191 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:40,750 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:41,293 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:41,512 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:41,779 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:41,927 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:42,190 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:42,330 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:42,718 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:42,869 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:43,096 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:43,344 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:43,818 WARN L191 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:43,935 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:44,137 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:44,272 WARN L191 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:44,492 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:44,610 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:44,769 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:44,887 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:45,064 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:45,222 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:45,491 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:45,609 WARN L191 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:45,895 WARN L191 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:46,107 WARN L191 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 152 [2019-11-07 01:33:46,315 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:46,426 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:46,594 WARN L191 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:46,723 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:46,924 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:47,055 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:47,213 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:47,339 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:47,528 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:47,654 WARN L191 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:47,853 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:48,081 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:48,403 WARN L191 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:48,633 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:48,968 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:49,196 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:49,538 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:49,679 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:49,876 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:50,006 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:50,526 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:50,772 WARN L191 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:50,965 WARN L191 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:51,179 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:51,518 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:51,756 WARN L191 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:52,077 WARN L191 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:52,311 WARN L191 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:52,645 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:52,921 WARN L191 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:53,253 WARN L191 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:53,395 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:53,576 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:53,704 WARN L191 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 151 [2019-11-07 01:33:53,849 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:33:53,973 WARN L191 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:33:54,143 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:33:54,258 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:33:54,410 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:33:54,516 WARN L191 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:33:54,675 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:33:54,911 WARN L191 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:33:55,214 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:33:55,337 WARN L191 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:33:55,503 WARN L191 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:33:55,611 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:33:55,768 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:33:55,880 WARN L191 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 150 [2019-11-07 01:33:56,087 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:33:56,188 WARN L191 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:33:56,430 WARN L191 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:33:56,954 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:33:57,152 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:33:57,717 WARN L191 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:33:57,955 WARN L191 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:33:58,222 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:33:58,420 WARN L191 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:33:58,715 WARN L191 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:33:58,922 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:33:59,214 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:33:59,409 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:33:59,672 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:33:59,836 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:00,009 WARN L191 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:00,328 WARN L191 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:00,520 WARN L191 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:01,006 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:01,165 WARN L191 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:01,343 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 149 [2019-11-07 01:34:01,487 WARN L191 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:02,630 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:03,348 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:03,536 WARN L191 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:03,762 WARN L191 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:04,061 WARN L191 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 137 [2019-11-07 01:34:04,077 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 21