/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_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fb55353 [2019-11-07 01:34:57,751 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2019-11-07 01:34:57,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-07 01:34:57,800 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-07 01:34:57,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-07 01:34:57,804 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-07 01:34:57,805 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-07 01:34:57,807 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-07 01:34:57,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-07 01:34:57,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-07 01:34:57,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-07 01:34:57,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-07 01:34:57,820 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-07 01:34:57,821 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-07 01:34:57,822 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-07 01:34:57,829 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-07 01:34:57,830 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-07 01:34:57,830 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-07 01:34:57,831 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 01:34:57,844 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-07 01:34:57,845 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-07 01:34:57,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-07 01:34:57,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-07 01:34:57,846 INFO L138 SettingsManager]: * Use SBE=true [2019-11-07 01:34:57,846 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-07 01:34:57,847 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-07 01:34:57,847 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-07 01:34:57,847 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-07 01:34:57,847 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-07 01:34:57,847 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-07 01:34:57,848 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-07 01:34:57,848 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-07 01:34:57,848 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-07 01:34:57,848 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-07 01:34:57,848 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-07 01:34:57,848 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-07 01:34:57,849 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-07 01:34:57,849 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-07 01:34:57,849 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-07 01:34:57,849 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-07 01:34:57,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-07 01:34:57,850 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-07 01:34:57,850 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-07 01:34:57,850 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-07 01:34:57,850 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-07 01:34:57,850 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-07 01:34:57,851 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-07 01:34:57,851 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 01:34:58,121 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-07 01:34:58,134 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-07 01:34:58,138 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-07 01:34:58,139 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-07 01:34:58,139 INFO L275 PluginConnector]: CDTParser initialized [2019-11-07 01:34:58,140 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2019-11-07 01:34:58,206 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/365960958/55793cd780e748f4bb6d179f43b2bd6f/FLAG483f74ed0 [2019-11-07 01:34:58,732 INFO L306 CDTParser]: Found 1 translation units. [2019-11-07 01:34:58,733 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label26.c [2019-11-07 01:34:58,754 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/365960958/55793cd780e748f4bb6d179f43b2bd6f/FLAG483f74ed0 [2019-11-07 01:34:59,025 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/365960958/55793cd780e748f4bb6d179f43b2bd6f [2019-11-07 01:34:59,034 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-07 01:34:59,036 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-11-07 01:34:59,037 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-07 01:34:59,037 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-07 01:34:59,041 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-07 01:34:59,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:34:59" (1/1) ... [2019-11-07 01:34:59,045 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ab07c1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:59, skipping insertion in model container [2019-11-07 01:34:59,045 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:34:59" (1/1) ... [2019-11-07 01:34:59,053 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-11-07 01:34:59,116 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-11-07 01:34:59,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:34:59,743 INFO L188 MainTranslator]: Completed pre-run [2019-11-07 01:34:59,852 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-07 01:34:59,872 INFO L192 MainTranslator]: Completed translation [2019-11-07 01:34:59,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:59 WrapperNode [2019-11-07 01:34:59,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-07 01:34:59,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-07 01:34:59,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-07 01:34:59,874 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-07 01:34:59,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:59" (1/1) ... [2019-11-07 01:34:59,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:59" (1/1) ... [2019-11-07 01:34:59,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:59" (1/1) ... [2019-11-07 01:34:59,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:59" (1/1) ... [2019-11-07 01:34:59,978 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:59" (1/1) ... [2019-11-07 01:34:59,996 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:59" (1/1) ... [2019-11-07 01:35:00,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:59" (1/1) ... [2019-11-07 01:35:00,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-07 01:35:00,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-07 01:35:00,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-07 01:35:00,022 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-07 01:35:00,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:59" (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 01:35:00,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-11-07 01:35:00,091 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-07 01:35:00,091 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-11-07 01:35:00,092 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-11-07 01:35:00,092 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-11-07 01:35:00,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-11-07 01:35:00,092 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-11-07 01:35:00,093 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-11-07 01:35:00,093 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-11-07 01:35:00,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-11-07 01:35:00,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-07 01:35:01,850 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-07 01:35:01,850 INFO L284 CfgBuilder]: Removed 1 assume(true) statements. [2019-11-07 01:35:01,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:35:01 BoogieIcfgContainer [2019-11-07 01:35:01,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-07 01:35:01,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-07 01:35:01,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-07 01:35:01,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-07 01:35:01,856 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:34:59" (1/3) ... [2019-11-07 01:35:01,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7585e817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:35:01, skipping insertion in model container [2019-11-07 01:35:01,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:34:59" (2/3) ... [2019-11-07 01:35:01,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7585e817 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:35:01, skipping insertion in model container [2019-11-07 01:35:01,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:35:01" (3/3) ... [2019-11-07 01:35:01,860 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label26.c [2019-11-07 01:35:01,870 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-07 01:35:01,878 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-07 01:35:01,889 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-07 01:35:01,914 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-07 01:35:01,914 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-07 01:35:01,915 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-07 01:35:01,915 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-07 01:35:01,915 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-07 01:35:01,915 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-07 01:35:01,915 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-07 01:35:01,915 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-07 01:35:01,935 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2019-11-07 01:35:01,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-11-07 01:35:01,944 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:35:01,946 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 01:35:01,949 INFO L410 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:35:01,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:35:01,961 INFO L82 PathProgramCache]: Analyzing trace with hash 826819172, now seen corresponding path program 1 times [2019-11-07 01:35:01,971 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:35:01,971 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484693553] [2019-11-07 01:35:01,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:35:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:35:02,408 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 01:35:02,409 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484693553] [2019-11-07 01:35:02,410 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:35:02,410 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-07 01:35:02,412 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142146717] [2019-11-07 01:35:02,418 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-07 01:35:02,418 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:35:02,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-07 01:35:02,433 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-07 01:35:02,435 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 3 states. [2019-11-07 01:35:02,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:35:02,895 INFO L93 Difference]: Finished difference Result 246 states and 454 transitions. [2019-11-07 01:35:02,896 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-07 01:35:02,897 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2019-11-07 01:35:02,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:35:02,913 INFO L225 Difference]: With dead ends: 246 [2019-11-07 01:35:02,913 INFO L226 Difference]: Without dead ends: 157 [2019-11-07 01:35:02,917 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 01:35:02,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2019-11-07 01:35:02,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2019-11-07 01:35:02,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2019-11-07 01:35:02,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 273 transitions. [2019-11-07 01:35:02,981 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 273 transitions. Word has length 77 [2019-11-07 01:35:02,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:35:02,981 INFO L462 AbstractCegarLoop]: Abstraction has 157 states and 273 transitions. [2019-11-07 01:35:02,982 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-07 01:35:02,982 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 273 transitions. [2019-11-07 01:35:02,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-11-07 01:35:02,986 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:35:02,986 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 01:35:02,987 INFO L410 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:35:02,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:35:02,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1195667461, now seen corresponding path program 1 times [2019-11-07 01:35:02,987 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:35:02,988 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268842625] [2019-11-07 01:35:02,988 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:35:03,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:35:03,076 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 01:35:03,078 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268842625] [2019-11-07 01:35:03,078 INFO L218 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-07 01:35:03,078 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-11-07 01:35:03,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56494412] [2019-11-07 01:35:03,081 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-07 01:35:03,081 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:35:03,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-07 01:35:03,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-11-07 01:35:03,082 INFO L87 Difference]: Start difference. First operand 157 states and 273 transitions. Second operand 6 states. [2019-11-07 01:35:03,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:35:03,707 INFO L93 Difference]: Finished difference Result 479 states and 861 transitions. [2019-11-07 01:35:03,708 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-07 01:35:03,708 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 87 [2019-11-07 01:35:03,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:35:03,714 INFO L225 Difference]: With dead ends: 479 [2019-11-07 01:35:03,714 INFO L226 Difference]: Without dead ends: 327 [2019-11-07 01:35:03,716 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 01:35:03,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2019-11-07 01:35:03,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 315. [2019-11-07 01:35:03,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 315 states. [2019-11-07 01:35:03,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 544 transitions. [2019-11-07 01:35:03,783 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 544 transitions. Word has length 87 [2019-11-07 01:35:03,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:35:03,784 INFO L462 AbstractCegarLoop]: Abstraction has 315 states and 544 transitions. [2019-11-07 01:35:03,784 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-07 01:35:03,784 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 544 transitions. [2019-11-07 01:35:03,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-11-07 01:35:03,787 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:35:03,788 INFO L410 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] [2019-11-07 01:35:03,788 INFO L410 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:35:03,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:35:03,789 INFO L82 PathProgramCache]: Analyzing trace with hash -2128689065, now seen corresponding path program 1 times [2019-11-07 01:35:03,789 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:35:03,789 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82946925] [2019-11-07 01:35:03,789 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:35:03,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:35:04,031 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:35:04,032 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82946925] [2019-11-07 01:35:04,032 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997009440] [2019-11-07 01:35:04,033 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 01:35:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:35:04,172 INFO L256 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-07 01:35:04,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:35:04,264 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:35:04,265 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:35:04,334 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:35:04,335 INFO L218 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-07 01:35:04,335 INFO L231 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [7] total 9 [2019-11-07 01:35:04,336 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85112675] [2019-11-07 01:35:04,336 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-07 01:35:04,337 INFO L141 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-07 01:35:04,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-07 01:35:04,337 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-11-07 01:35:04,337 INFO L87 Difference]: Start difference. First operand 315 states and 544 transitions. Second operand 4 states. [2019-11-07 01:35:04,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-07 01:35:04,981 INFO L93 Difference]: Finished difference Result 1002 states and 1772 transitions. [2019-11-07 01:35:04,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-07 01:35:04,982 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 88 [2019-11-07 01:35:04,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-07 01:35:04,989 INFO L225 Difference]: With dead ends: 1002 [2019-11-07 01:35:04,989 INFO L226 Difference]: Without dead ends: 692 [2019-11-07 01:35:04,992 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 176 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-11-07 01:35:04,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2019-11-07 01:35:05,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 540. [2019-11-07 01:35:05,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 540 states. [2019-11-07 01:35:05,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 774 transitions. [2019-11-07 01:35:05,033 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 774 transitions. Word has length 88 [2019-11-07 01:35:05,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-07 01:35:05,033 INFO L462 AbstractCegarLoop]: Abstraction has 540 states and 774 transitions. [2019-11-07 01:35:05,034 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-07 01:35:05,034 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 774 transitions. [2019-11-07 01:35:05,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2019-11-07 01:35:05,039 INFO L402 BasicCegarLoop]: Found error trace [2019-11-07 01:35:05,040 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2019-11-07 01:35:05,243 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-07 01:35:05,243 INFO L410 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-07 01:35:05,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-07 01:35:05,244 INFO L82 PathProgramCache]: Analyzing trace with hash -1484520614, now seen corresponding path program 1 times [2019-11-07 01:35:05,245 INFO L161 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-07 01:35:05,246 INFO L337 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843140594] [2019-11-07 01:35:05,246 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-07 01:35:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:35:05,362 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:35:05,363 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843140594] [2019-11-07 01:35:05,363 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [23234731] [2019-11-07 01:35:05,363 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 01:35:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-07 01:35:05,493 INFO L256 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 4 conjunts are in the unsatisfiable core [2019-11-07 01:35:05,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-11-07 01:35:05,544 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:35:05,544 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-11-07 01:35:05,616 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-07 01:35:05,617 INFO L337 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1402373326] [2019-11-07 01:35:05,646 INFO L159 IcfgInterpreter]: Started Sifa with 81 locations of interest [2019-11-07 01:35:05,647 INFO L166 IcfgInterpreter]: Building call graph [2019-11-07 01:35:05,658 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-07 01:35:05,665 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-07 01:35:05,666 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-07 01:35:05,855 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 100 for LOIs [2019-11-07 01:35:06,829 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 186 [2019-11-07 01:35:07,293 WARN L191 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 185 [2019-11-07 01:35:07,500 INFO L197 IcfgInterpreter]: Interpreting procedure calculate_output with input of size 138 for LOIs [2019-11-07 01:35:07,707 WARN L191 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2019-11-07 01:35:07,816 WARN L191 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2019-11-07 01:35:08,097 WARN L191 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2019-11-07 01:35:08,252 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 147 [2019-11-07 01:35:08,685 WARN L191 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2019-11-07 01:35:08,943 WARN L191 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2019-11-07 01:35:09,224 WARN L191 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2019-11-07 01:35:09,414 WARN L191 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 159 [2019-11-07 01:35:09,910 WARN L191 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:10,306 WARN L191 SmtUtils]: Spent 393.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:11,032 WARN L191 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:11,219 WARN L191 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:11,649 WARN L191 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:11,923 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:12,193 WARN L191 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:12,467 WARN L191 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:12,980 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:13,183 WARN L191 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:13,420 WARN L191 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:13,574 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:14,094 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:14,380 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:14,870 WARN L191 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:15,263 WARN L191 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:15,511 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:15,666 WARN L191 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:15,863 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:16,017 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:16,358 WARN L191 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:16,663 WARN L191 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:17,062 WARN L191 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:17,246 WARN L191 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:17,547 WARN L191 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:17,738 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:18,099 WARN L191 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:18,253 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 158 [2019-11-07 01:35:18,465 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:18,616 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:18,844 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:18,996 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:19,222 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:19,375 WARN L191 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:19,701 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:19,892 WARN L191 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:20,200 WARN L191 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:20,468 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:20,686 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:20,836 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:21,048 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:21,280 WARN L191 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:21,512 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:21,663 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:21,898 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:22,052 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:22,288 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:22,502 WARN L191 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:22,986 WARN L191 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:23,155 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:23,369 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:23,533 WARN L191 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:23,925 WARN L191 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:24,248 WARN L191 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:24,489 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:24,800 WARN L191 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:25,169 WARN L191 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:25,351 WARN L191 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:25,687 WARN L191 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:25,863 WARN L191 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:26,104 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:26,281 WARN L191 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 157 [2019-11-07 01:35:26,514 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2019-11-07 01:35:26,710 WARN L191 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2019-11-07 01:35:26,935 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2019-11-07 01:35:27,198 WARN L191 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2019-11-07 01:35:27,682 WARN L191 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2019-11-07 01:35:27,935 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2019-11-07 01:35:28,171 WARN L191 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2019-11-07 01:35:28,340 WARN L191 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2019-11-07 01:35:28,601 WARN L191 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2019-11-07 01:35:28,903 WARN L191 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2019-11-07 01:35:29,304 WARN L191 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2019-11-07 01:35:29,619 WARN L191 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2019-11-07 01:35:30,055 WARN L191 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2019-11-07 01:35:30,363 WARN L191 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 156 [2019-11-07 01:35:30,683 WARN L191 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:30,936 WARN L191 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:31,264 WARN L191 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:31,491 WARN L191 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:31,825 WARN L191 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:31,974 WARN L191 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:32,174 WARN L191 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:32,304 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:32,604 WARN L191 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:32,862 WARN L191 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:33,435 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:33,595 WARN L191 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:33,961 WARN L191 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:34,235 WARN L191 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:34,539 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:34,669 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:34,875 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:35,007 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:35,190 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:35,320 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:35,503 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:35,632 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:35,813 WARN L191 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:35,966 WARN L191 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:36,146 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:36,276 WARN L191 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:36,455 WARN L191 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:36,587 WARN L191 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:36,796 WARN L191 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:36,947 WARN L191 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 155 [2019-11-07 01:35:37,148 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-07 01:35:37,294 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-07 01:35:37,508 WARN L191 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-07 01:35:37,704 WARN L191 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-07 01:35:37,908 WARN L191 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-07 01:35:38,051 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-07 01:35:38,251 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-07 01:35:38,394 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-07 01:35:38,595 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-07 01:35:38,737 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-07 01:35:38,941 WARN L191 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-07 01:35:39,085 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-07 01:35:39,280 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-07 01:35:39,424 WARN L191 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-07 01:35:39,642 WARN L191 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-07 01:35:39,785 WARN L191 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-07 01:35:39,982 WARN L191 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-07 01:35:40,128 WARN L191 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-07 01:35:40,328 WARN L191 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-07 01:35:40,483 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 144 [2019-11-07 01:35:40,495 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 33