/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/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/array-examples/standard_copy8_ground-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 23:06:08,204 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 23:06:08,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 23:06:08,221 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 23:06:08,221 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 23:06:08,222 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 23:06:08,224 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 23:06:08,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 23:06:08,227 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 23:06:08,228 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 23:06:08,229 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 23:06:08,230 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 23:06:08,230 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 23:06:08,232 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 23:06:08,232 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 23:06:08,234 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 23:06:08,234 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 23:06:08,235 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 23:06:08,237 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 23:06:08,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 23:06:08,241 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 23:06:08,242 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 23:06:08,243 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 23:06:08,244 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 23:06:08,247 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 23:06:08,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-23 23:06:08,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-23 23:06:08,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-23 23:06:08,253 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-23 23:06:08,254 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-23 23:06:08,254 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-23 23:06:08,255 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-23 23:06:08,255 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-23 23:06:08,255 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 23:06:08,256 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 23:06:08,257 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 23:06:08,258 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-23 23:06:08,282 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 23:06:08,282 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 23:06:08,283 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-23 23:06:08,283 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-23 23:06:08,283 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-23 23:06:08,284 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-23 23:06:08,285 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-23 23:06:08,285 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-23 23:06:08,285 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-23 23:06:08,285 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-23 23:06:08,285 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-23 23:06:08,285 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-23 23:06:08,286 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-23 23:06:08,286 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-23 23:06:08,286 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-23 23:06:08,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 23:06:08,288 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 23:06:08,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 23:06:08,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 23:06:08,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 23:06:08,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 23:06:08,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 23:06:08,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 23:06:08,290 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 23:06:08,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 23:06:08,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 23:06:08,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 23:06:08,291 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 23:06:08,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 23:06:08,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 23:06:08,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 23:06:08,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 23:06:08,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 23:06:08,293 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-23 23:06:08,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 23:06:08,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 23:06:08,294 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 23:06:08,294 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-23 23:06:08,591 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 23:06:08,605 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 23:06:08,608 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 23:06:08,609 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 23:06:08,609 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 23:06:08,610 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_copy8_ground-2.i [2019-11-23 23:06:08,673 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dd81c12c/93a8f4105a444e56afaecb8962c491cf/FLAG6cb5005e8 [2019-11-23 23:06:09,118 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 23:06:09,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_copy8_ground-2.i [2019-11-23 23:06:09,127 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dd81c12c/93a8f4105a444e56afaecb8962c491cf/FLAG6cb5005e8 [2019-11-23 23:06:09,493 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dd81c12c/93a8f4105a444e56afaecb8962c491cf [2019-11-23 23:06:09,502 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 23:06:09,504 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 23:06:09,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 23:06:09,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 23:06:09,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 23:06:09,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:06:09" (1/1) ... [2019-11-23 23:06:09,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b2439b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:09, skipping insertion in model container [2019-11-23 23:06:09,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:06:09" (1/1) ... [2019-11-23 23:06:09,520 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 23:06:09,540 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 23:06:09,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:06:09,733 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 23:06:09,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:06:09,779 INFO L208 MainTranslator]: Completed translation [2019-11-23 23:06:09,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:09 WrapperNode [2019-11-23 23:06:09,780 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 23:06:09,780 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 23:06:09,780 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 23:06:09,780 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 23:06:09,866 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:09" (1/1) ... [2019-11-23 23:06:09,875 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:09" (1/1) ... [2019-11-23 23:06:09,906 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 23:06:09,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 23:06:09,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 23:06:09,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 23:06:09,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:09" (1/1) ... [2019-11-23 23:06:09,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:09" (1/1) ... [2019-11-23 23:06:09,918 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:09" (1/1) ... [2019-11-23 23:06:09,918 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:09" (1/1) ... [2019-11-23 23:06:09,926 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:09" (1/1) ... [2019-11-23 23:06:09,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:09" (1/1) ... [2019-11-23 23:06:09,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:09" (1/1) ... [2019-11-23 23:06:09,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 23:06:09,939 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 23:06:09,939 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 23:06:09,939 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 23:06:09,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:09" (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 [2019-11-23 23:06:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-23 23:06:10,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 23:06:10,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 23:06:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-23 23:06:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-23 23:06:10,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-23 23:06:10,605 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 23:06:10,607 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-11-23 23:06:10,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:06:10 BoogieIcfgContainer [2019-11-23 23:06:10,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 23:06:10,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 23:06:10,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 23:06:10,614 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 23:06:10,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:06:09" (1/3) ... [2019-11-23 23:06:10,616 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f64c91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:06:10, skipping insertion in model container [2019-11-23 23:06:10,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:06:09" (2/3) ... [2019-11-23 23:06:10,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f64c91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:06:10, skipping insertion in model container [2019-11-23 23:06:10,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:06:10" (3/3) ... [2019-11-23 23:06:10,622 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_copy8_ground-2.i [2019-11-23 23:06:10,631 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 23:06:10,639 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 23:06:10,650 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 23:06:10,677 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 23:06:10,677 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 23:06:10,678 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 23:06:10,678 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 23:06:10,678 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 23:06:10,678 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 23:06:10,678 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 23:06:10,678 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 23:06:10,691 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-11-23 23:06:10,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-11-23 23:06:10,699 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:06:10,700 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:06:10,700 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:06:10,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:06:10,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1526297398, now seen corresponding path program 1 times [2019-11-23 23:06:10,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:06:10,714 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732660757] [2019-11-23 23:06:10,715 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:06:10,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:06:10,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:06:10,900 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732660757] [2019-11-23 23:06:10,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:06:10,903 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 23:06:10,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1766062459] [2019-11-23 23:06:10,912 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 23:06:10,912 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:06:10,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 23:06:10,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:06:10,933 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2019-11-23 23:06:10,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:06:10,984 INFO L93 Difference]: Finished difference Result 31 states and 51 transitions. [2019-11-23 23:06:10,985 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 23:06:10,986 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2019-11-23 23:06:10,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:06:10,998 INFO L225 Difference]: With dead ends: 31 [2019-11-23 23:06:10,998 INFO L226 Difference]: Without dead ends: 16 [2019-11-23 23:06:11,005 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:06:11,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-23 23:06:11,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-23 23:06:11,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-23 23:06:11,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 25 transitions. [2019-11-23 23:06:11,053 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 25 transitions. Word has length 13 [2019-11-23 23:06:11,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:06:11,054 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 25 transitions. [2019-11-23 23:06:11,054 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 23:06:11,054 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 25 transitions. [2019-11-23 23:06:11,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-11-23 23:06:11,055 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:06:11,055 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:06:11,056 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:06:11,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:06:11,056 INFO L82 PathProgramCache]: Analyzing trace with hash -477358993, now seen corresponding path program 1 times [2019-11-23 23:06:11,056 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:06:11,057 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746069434] [2019-11-23 23:06:11,057 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:06:11,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:06:11,169 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:06:11,169 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746069434] [2019-11-23 23:06:11,170 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373230822] [2019-11-23 23:06:11,170 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 [2019-11-23 23:06:11,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:06:11,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-23 23:06:11,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:06:11,307 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-23 23:06:11,308 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:06:11,329 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-23 23:06:11,329 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-23 23:06:11,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3] total 6 [2019-11-23 23:06:11,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795585743] [2019-11-23 23:06:11,332 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:06:11,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:06:11,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:06:11,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-23 23:06:11,333 INFO L87 Difference]: Start difference. First operand 16 states and 25 transitions. Second operand 4 states. [2019-11-23 23:06:11,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:06:11,472 INFO L93 Difference]: Finished difference Result 44 states and 76 transitions. [2019-11-23 23:06:11,473 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:06:11,473 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-11-23 23:06:11,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:06:11,474 INFO L225 Difference]: With dead ends: 44 [2019-11-23 23:06:11,474 INFO L226 Difference]: Without dead ends: 32 [2019-11-23 23:06:11,475 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-23 23:06:11,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-11-23 23:06:11,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-11-23 23:06:11,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-23 23:06:11,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 41 transitions. [2019-11-23 23:06:11,487 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 41 transitions. Word has length 14 [2019-11-23 23:06:11,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:06:11,488 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 41 transitions. [2019-11-23 23:06:11,488 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:06:11,488 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 41 transitions. [2019-11-23 23:06:11,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-11-23 23:06:11,502 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:06:11,502 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:06:11,711 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:06:11,711 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:06:11,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:06:11,713 INFO L82 PathProgramCache]: Analyzing trace with hash -1742875025, now seen corresponding path program 1 times [2019-11-23 23:06:11,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:06:11,714 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415426837] [2019-11-23 23:06:11,715 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:06:11,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:06:11,821 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-23 23:06:11,821 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415426837] [2019-11-23 23:06:11,822 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302962588] [2019-11-23 23:06:11,822 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 [2019-11-23 23:06:11,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:06:11,905 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-23 23:06:11,907 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:06:11,912 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-23 23:06:11,912 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:06:11,937 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2019-11-23 23:06:11,938 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1400058516] [2019-11-23 23:06:11,964 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2019-11-23 23:06:11,965 INFO L166 IcfgInterpreter]: Building call graph [2019-11-23 23:06:11,971 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-23 23:06:11,978 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-23 23:06:11,979 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-23 23:06:13,605 WARN L192 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 225 DAG size of output: 181 [2019-11-23 23:06:14,057 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 235 [2019-11-23 23:06:14,433 WARN L192 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 253 [2019-11-23 23:06:14,714 WARN L192 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2019-11-23 23:06:15,074 WARN L192 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 257 [2019-11-23 23:06:15,692 WARN L192 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 274 [2019-11-23 23:06:16,026 WARN L192 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 281 DAG size of output: 278 [2019-11-23 23:06:16,424 WARN L192 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 278 [2019-11-23 23:06:17,430 WARN L192 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 295 [2019-11-23 23:06:17,777 WARN L192 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 304 DAG size of output: 299 [2019-11-23 23:06:18,132 WARN L192 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 299 [2019-11-23 23:06:19,513 WARN L192 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 314 [2019-11-23 23:06:19,882 WARN L192 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 325 DAG size of output: 318 [2019-11-23 23:06:20,315 WARN L192 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 318 DAG size of output: 318 [2019-11-23 23:06:20,840 WARN L192 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 326 [2019-11-23 23:06:21,203 WARN L192 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 327 DAG size of output: 325 [2019-11-23 23:06:21,638 WARN L192 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2019-11-23 23:06:21,962 WARN L192 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 335 DAG size of output: 335 [2019-11-23 23:06:24,481 WARN L192 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 349 [2019-11-23 23:06:24,814 WARN L192 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 339 [2019-11-23 23:06:25,135 WARN L192 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 340 DAG size of output: 340 [2019-11-23 23:06:27,925 WARN L192 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 351 [2019-11-23 23:06:28,238 WARN L192 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 344 [2019-11-23 23:06:28,596 WARN L192 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 343 [2019-11-23 23:06:31,339 WARN L192 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 354 DAG size of output: 354 [2019-11-23 23:06:32,031 WARN L192 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 345 [2019-11-23 23:06:32,421 WARN L192 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 345 [2019-11-23 23:06:35,691 WARN L192 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 356 [2019-11-23 23:06:36,013 WARN L192 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 348 [2019-11-23 23:06:36,315 WARN L192 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 349 [2019-11-23 23:06:39,222 WARN L192 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 360 DAG size of output: 359 [2019-11-23 23:06:39,569 WARN L192 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 353 [2019-11-23 23:06:39,879 WARN L192 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 354 DAG size of output: 353 [2019-11-23 23:06:42,878 WARN L192 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 363 DAG size of output: 363 [2019-11-23 23:06:43,215 WARN L192 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 356 [2019-11-23 23:06:43,613 WARN L192 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 356 [2019-11-23 23:06:46,715 WARN L192 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 365 [2019-11-23 23:06:47,036 WARN L192 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2019-11-23 23:06:47,332 WARN L192 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 360 DAG size of output: 360 [2019-11-23 23:06:50,632 WARN L192 SmtUtils]: Spent 483.00 ms on a formula simplification that was a NOOP. DAG size: 368 [2019-11-23 23:06:50,957 WARN L192 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2019-11-23 23:06:51,278 WARN L192 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 365 DAG size of output: 364 [2019-11-23 23:06:54,393 WARN L192 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 371 [2019-11-23 23:06:54,732 WARN L192 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 367 [2019-11-23 23:06:55,065 WARN L192 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 368 DAG size of output: 367 [2019-11-23 23:06:58,332 WARN L192 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 375 DAG size of output: 375 [2019-11-23 23:06:58,673 WARN L192 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 370 [2019-11-23 23:06:59,009 WARN L192 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 371 DAG size of output: 370 [2019-11-23 23:07:02,295 WARN L192 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 377 [2019-11-23 23:07:02,623 WARN L192 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2019-11-23 23:07:02,979 WARN L192 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 374 DAG size of output: 372 [2019-11-23 23:07:03,364 WARN L192 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2019-11-23 23:07:03,729 WARN L192 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 375 DAG size of output: 375 [2019-11-23 23:07:07,537 WARN L192 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 386 DAG size of output: 384 [2019-11-23 23:07:07,948 WARN L192 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 379 [2019-11-23 23:07:08,332 WARN L192 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 380 DAG size of output: 379 [2019-11-23 23:07:12,169 WARN L192 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 389 DAG size of output: 387 [2019-11-23 23:07:12,584 WARN L192 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 382 [2019-11-23 23:07:12,981 WARN L192 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 383 [2019-11-23 23:07:16,927 WARN L192 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 390 [2019-11-23 23:07:17,312 WARN L192 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 387 [2019-11-23 23:07:17,737 WARN L192 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 388 DAG size of output: 385 [2019-11-23 23:07:18,074 WARN L192 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 386 [2019-11-23 23:07:18,388 WARN L192 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 387 DAG size of output: 387 [2019-11-23 23:07:22,700 WARN L192 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 400 DAG size of output: 399 [2019-11-23 23:07:23,038 WARN L192 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 391 [2019-11-23 23:07:23,362 WARN L192 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 392 DAG size of output: 392 [2019-11-23 23:07:27,736 WARN L192 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 402 DAG size of output: 401 [2019-11-23 23:07:28,091 WARN L192 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 396 [2019-11-23 23:07:28,498 WARN L192 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 397 DAG size of output: 395 [2019-11-23 23:07:33,289 WARN L192 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 406 DAG size of output: 404 [2019-11-23 23:07:33,626 WARN L192 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 397 [2019-11-23 23:07:34,015 WARN L192 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 398 DAG size of output: 397 [2019-11-23 23:07:38,728 WARN L192 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 407 DAG size of output: 406 [2019-11-23 23:07:39,060 WARN L192 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 400 [2019-11-23 23:07:39,421 WARN L192 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 401 DAG size of output: 401 [2019-11-23 23:07:44,046 WARN L192 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 410 DAG size of output: 408