/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-crafted/mapavg2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:53:24,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:53:24,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:53:24,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 22:53:24,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 22:53:24,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 22:53:24,726 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 22:53:24,729 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 22:53:24,730 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 22:53:24,734 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 22:53:24,735 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 22:53:24,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 22:53:24,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 22:53:24,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 22:53:24,745 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 22:53:24,750 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 22:53:24,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 22:53:24,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 22:53:24,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 22:53:24,757 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 22:53:24,760 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 22:53:24,761 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 22:53:24,762 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 22:53:24,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 22:53:24,769 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-23 22:53:24,770 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-23 22:53:24,770 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-23 22:53:24,771 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-23 22:53:24,771 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-23 22:53:24,772 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-23 22:53:24,772 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-23 22:53:24,773 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-23 22:53:24,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-23 22:53:24,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-23 22:53:24,778 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-23 22:53:24,778 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-23 22:53:24,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-23 22:53:24,782 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-23 22:53:24,782 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 22:53:24,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 22:53:24,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 22:53:24,786 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 22:53:24,807 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:53:24,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:53:24,808 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-23 22:53:24,809 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-23 22:53:24,809 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-23 22:53:24,809 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-23 22:53:24,809 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-23 22:53:24,809 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-23 22:53:24,809 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-23 22:53:24,810 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-23 22:53:24,811 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-23 22:53:24,811 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-23 22:53:24,811 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-23 22:53:24,812 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-23 22:53:24,812 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-23 22:53:24,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:53:24,813 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:53:24,813 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:53:24,813 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:53:24,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:53:24,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:53:24,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:53:24,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:53:24,814 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:53:24,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:53:24,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:53:24,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:53:24,815 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:53:24,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:53:24,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:53:24,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:53:24,817 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:53:24,817 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:53:24,817 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-23 22:53:24,818 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:53:24,818 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:53:24,818 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:53:24,818 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-23 22:53:25,084 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:53:25,096 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:53:25,100 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:53:25,101 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:53:25,102 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:53:25,103 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-crafted/mapavg2.i [2019-11-23 22:53:25,171 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0211580a/1668530f5c074d528bd09b2435d4d281/FLAG1b92da040 [2019-11-23 22:53:25,591 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:53:25,591 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-crafted/mapavg2.i [2019-11-23 22:53:25,600 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0211580a/1668530f5c074d528bd09b2435d4d281/FLAG1b92da040 [2019-11-23 22:53:25,955 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f0211580a/1668530f5c074d528bd09b2435d4d281 [2019-11-23 22:53:25,962 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:53:25,964 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:53:25,965 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:53:25,965 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:53:25,968 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:53:25,969 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:53:25" (1/1) ... [2019-11-23 22:53:25,974 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ffb995 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:25, skipping insertion in model container [2019-11-23 22:53:25,974 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:53:25" (1/1) ... [2019-11-23 22:53:25,981 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:53:25,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:53:26,271 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:53:26,285 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:53:26,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:53:26,352 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:53:26,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26 WrapperNode [2019-11-23 22:53:26,353 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:53:26,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:53:26,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:53:26,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:53:26,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26" (1/1) ... [2019-11-23 22:53:26,482 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26" (1/1) ... [2019-11-23 22:53:26,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:53:26,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:53:26,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:53:26,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:53:26,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26" (1/1) ... [2019-11-23 22:53:26,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26" (1/1) ... [2019-11-23 22:53:26,524 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26" (1/1) ... [2019-11-23 22:53:26,524 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26" (1/1) ... [2019-11-23 22:53:26,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26" (1/1) ... [2019-11-23 22:53:26,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26" (1/1) ... [2019-11-23 22:53:26,548 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26" (1/1) ... [2019-11-23 22:53:26,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:53:26,555 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:53:26,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:53:26,556 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:53:26,559 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26" (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 22:53:26,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-23 22:53:26,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:53:26,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:53:26,617 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-23 22:53:26,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-23 22:53:26,618 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-23 22:53:27,121 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:53:27,122 INFO L284 CfgBuilder]: Removed 15 assume(true) statements. [2019-11-23 22:53:27,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:53:27 BoogieIcfgContainer [2019-11-23 22:53:27,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:53:27,124 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:53:27,124 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:53:27,127 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:53:27,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:53:25" (1/3) ... [2019-11-23 22:53:27,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a19317a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:53:27, skipping insertion in model container [2019-11-23 22:53:27,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26" (2/3) ... [2019-11-23 22:53:27,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a19317a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:53:27, skipping insertion in model container [2019-11-23 22:53:27,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:53:27" (3/3) ... [2019-11-23 22:53:27,131 INFO L109 eAbstractionObserver]: Analyzing ICFG mapavg2.i [2019-11-23 22:53:27,140 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:53:27,148 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 22:53:27,160 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 22:53:27,182 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:53:27,182 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:53:27,182 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:53:27,182 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:53:27,183 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:53:27,183 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:53:27,183 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:53:27,183 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:53:27,196 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-23 22:53:27,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-23 22:53:27,202 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:53:27,203 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:53:27,203 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:53:27,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:53:27,208 INFO L82 PathProgramCache]: Analyzing trace with hash -977729615, now seen corresponding path program 1 times [2019-11-23 22:53:27,217 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 22:53:27,218 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123142738] [2019-11-23 22:53:27,218 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:53:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:53:27,365 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 22:53:27,366 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123142738] [2019-11-23 22:53:27,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:53:27,367 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 22:53:27,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904405482] [2019-11-23 22:53:27,373 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 22:53:27,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 22:53:27,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 22:53:27,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:53:27,391 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2019-11-23 22:53:27,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:53:27,424 INFO L93 Difference]: Finished difference Result 21 states and 31 transitions. [2019-11-23 22:53:27,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 22:53:27,426 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-23 22:53:27,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:53:27,437 INFO L225 Difference]: With dead ends: 21 [2019-11-23 22:53:27,437 INFO L226 Difference]: Without dead ends: 10 [2019-11-23 22:53:27,441 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 22:53:27,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-23 22:53:27,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-23 22:53:27,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-23 22:53:27,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 14 transitions. [2019-11-23 22:53:27,479 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 14 transitions. Word has length 8 [2019-11-23 22:53:27,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:53:27,479 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 14 transitions. [2019-11-23 22:53:27,480 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 22:53:27,480 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 14 transitions. [2019-11-23 22:53:27,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-23 22:53:27,480 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:53:27,481 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:53:27,481 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:53:27,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:53:27,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1165895748, now seen corresponding path program 1 times [2019-11-23 22:53:27,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 22:53:27,482 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414396703] [2019-11-23 22:53:27,483 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:53:27,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:53:27,579 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 22:53:27,579 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414396703] [2019-11-23 22:53:27,580 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1756523413] [2019-11-23 22:53:27,580 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 22:53:27,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:53:27,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-23 22:53:27,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:53:27,706 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 22:53:27,706 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 22:53:27,725 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 22:53:27,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:53:27,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3] total 6 [2019-11-23 22:53:27,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751399925] [2019-11-23 22:53:27,728 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:53:27,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 22:53:27,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:53:27,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-23 22:53:27,731 INFO L87 Difference]: Start difference. First operand 10 states and 14 transitions. Second operand 4 states. [2019-11-23 22:53:27,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:53:27,794 INFO L93 Difference]: Finished difference Result 22 states and 34 transitions. [2019-11-23 22:53:27,795 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 22:53:27,795 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-23 22:53:27,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:53:27,796 INFO L225 Difference]: With dead ends: 22 [2019-11-23 22:53:27,796 INFO L226 Difference]: Without dead ends: 16 [2019-11-23 22:53:27,797 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 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 22:53:27,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-23 22:53:27,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-23 22:53:27,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-23 22:53:27,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2019-11-23 22:53:27,804 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 9 [2019-11-23 22:53:27,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:53:27,805 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2019-11-23 22:53:27,805 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:53:27,806 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2019-11-23 22:53:27,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-23 22:53:27,808 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:53:27,809 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:53:28,013 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:53:28,014 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:53:28,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:53:28,015 INFO L82 PathProgramCache]: Analyzing trace with hash 1510942468, now seen corresponding path program 1 times [2019-11-23 22:53:28,015 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 22:53:28,016 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032155627] [2019-11-23 22:53:28,016 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:53:28,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:53:28,084 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-23 22:53:28,086 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032155627] [2019-11-23 22:53:28,086 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2072753905] [2019-11-23 22:53:28,087 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 22:53:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:53:28,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-23 22:53:28,153 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:53:28,165 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-23 22:53:28,165 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 22:53:28,181 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-23 22:53:28,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:53:28,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3] total 6 [2019-11-23 22:53:28,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048167287] [2019-11-23 22:53:28,183 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:53:28,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 22:53:28,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:53:28,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-23 22:53:28,184 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand 4 states. [2019-11-23 22:53:28,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:53:28,214 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2019-11-23 22:53:28,215 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 22:53:28,215 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-23 22:53:28,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:53:28,216 INFO L225 Difference]: With dead ends: 24 [2019-11-23 22:53:28,216 INFO L226 Difference]: Without dead ends: 18 [2019-11-23 22:53:28,216 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 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 22:53:28,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-23 22:53:28,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-23 22:53:28,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-23 22:53:28,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2019-11-23 22:53:28,222 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 15 [2019-11-23 22:53:28,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:53:28,222 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2019-11-23 22:53:28,222 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:53:28,222 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2019-11-23 22:53:28,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-23 22:53:28,223 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:53:28,223 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:53:28,424 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:53:28,425 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:53:28,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:53:28,425 INFO L82 PathProgramCache]: Analyzing trace with hash -1316778556, now seen corresponding path program 1 times [2019-11-23 22:53:28,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 22:53:28,426 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443546337] [2019-11-23 22:53:28,427 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:53:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:53:28,472 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-23 22:53:28,473 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443546337] [2019-11-23 22:53:28,473 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691200671] [2019-11-23 22:53:28,473 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:53:28,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:53:28,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-23 22:53:28,528 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:53:28,532 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-23 22:53:28,532 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 22:53:28,548 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-23 22:53:28,549 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [225265345] [2019-11-23 22:53:28,574 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2019-11-23 22:53:28,574 INFO L166 IcfgInterpreter]: Building call graph [2019-11-23 22:53:28,581 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-23 22:53:28,588 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-23 22:53:28,589 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-23 22:53:46,730 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 224 [2019-11-23 22:53:46,857 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 225 [2019-11-23 22:53:55,592 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 263 [2019-11-23 22:53:55,766 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 262 [2019-11-23 22:53:55,957 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 264 [2019-11-23 22:53:56,110 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 263 [2019-11-23 22:53:56,351 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 266 DAG size of output: 265 [2019-11-23 22:53:56,480 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 268 [2019-11-23 22:53:58,234 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 273 [2019-11-23 22:54:26,252 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 334 [2019-11-23 22:54:31,219 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 341 DAG size of output: 338 [2019-11-23 22:54:31,441 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 340 DAG size of output: 340 [2019-11-23 22:54:34,170 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 344 [2019-11-23 22:54:34,286 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 344 [2019-11-23 22:54:36,787 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 350 [2019-11-23 22:54:36,904 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 351 DAG size of output: 348 [2019-11-23 22:54:40,044 WARN L192 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 352 [2019-11-23 22:54:40,253 WARN L192 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 350 [2019-11-23 22:54:40,429 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 351 [2019-11-23 22:54:40,536 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 352 [2019-11-23 22:54:43,165 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 356 [2019-11-23 22:54:43,280 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 357 DAG size of output: 357 [2019-11-23 22:54:45,907 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 367 DAG size of output: 366 [2019-11-23 22:54:46,044 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 367 DAG size of output: 359 [2019-11-23 22:54:46,170 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 360 [2019-11-23 22:54:46,283 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 361 DAG size of output: 361 [2019-11-23 22:54:48,830 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 367 [2019-11-23 22:54:48,959 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 368 DAG size of output: 365 [2019-11-23 22:54:51,781 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 368 [2019-11-23 22:54:51,906 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 368 [2019-11-23 22:54:54,878 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 371 [2019-11-23 22:54:55,009 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 372 DAG size of output: 371