/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-multidimensional/max-3-n-u.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 23:22:03,220 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 23:22:03,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 23:22:03,242 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 23:22:03,242 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 23:22:03,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 23:22:03,246 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 23:22:03,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 23:22:03,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 23:22:03,262 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 23:22:03,263 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 23:22:03,264 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 23:22:03,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 23:22:03,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 23:22:03,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 23:22:03,267 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 23:22:03,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 23:22:03,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 23:22:03,269 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 23:22:03,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 23:22:03,272 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 23:22:03,273 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 23:22:03,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 23:22:03,275 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 23:22:03,277 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 23:22:03,284 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 23:22:03,285 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 23:22:03,285 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 23:22:03,286 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 23:22:03,300 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 23:22:03,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 23:22:03,301 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-23 23:22:03,302 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-23 23:22:03,302 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-23 23:22:03,302 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-23 23:22:03,302 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-23 23:22:03,302 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-23 23:22:03,302 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-23 23:22:03,305 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-23 23:22:03,305 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-23 23:22:03,305 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-23 23:22:03,305 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-23 23:22:03,306 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-23 23:22:03,306 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-23 23:22:03,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 23:22:03,307 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 23:22:03,307 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 23:22:03,307 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 23:22:03,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 23:22:03,307 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 23:22:03,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 23:22:03,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 23:22:03,309 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 23:22:03,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 23:22:03,309 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 23:22:03,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 23:22:03,310 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 23:22:03,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 23:22:03,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 23:22:03,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 23:22:03,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 23:22:03,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 23:22:03,311 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-23 23:22:03,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 23:22:03,312 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 23:22:03,312 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 23:22:03,312 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-23 23:22:03,573 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 23:22:03,586 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 23:22:03,589 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 23:22:03,591 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 23:22:03,591 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 23:22:03,592 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/max-3-n-u.c [2019-11-23 23:22:03,660 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61346fa3b/078de5ce881648e3bb485434866ff666/FLAG2d833c26a [2019-11-23 23:22:04,139 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 23:22:04,143 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/max-3-n-u.c [2019-11-23 23:22:04,149 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61346fa3b/078de5ce881648e3bb485434866ff666/FLAG2d833c26a [2019-11-23 23:22:04,492 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61346fa3b/078de5ce881648e3bb485434866ff666 [2019-11-23 23:22:04,503 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 23:22:04,505 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 23:22:04,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 23:22:04,506 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 23:22:04,511 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 23:22:04,512 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:22:04" (1/1) ... [2019-11-23 23:22:04,515 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f45c220 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:04, skipping insertion in model container [2019-11-23 23:22:04,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:22:04" (1/1) ... [2019-11-23 23:22:04,523 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 23:22:04,543 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 23:22:04,746 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:22:04,750 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 23:22:04,790 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:22:04,810 INFO L208 MainTranslator]: Completed translation [2019-11-23 23:22:04,811 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:04 WrapperNode [2019-11-23 23:22:04,811 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 23:22:04,812 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 23:22:04,812 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 23:22:04,812 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 23:22:04,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:04" (1/1) ... [2019-11-23 23:22:04,915 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:04" (1/1) ... [2019-11-23 23:22:04,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 23:22:04,940 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 23:22:04,940 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 23:22:04,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 23:22:04,949 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:04" (1/1) ... [2019-11-23 23:22:04,950 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:04" (1/1) ... [2019-11-23 23:22:04,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:04" (1/1) ... [2019-11-23 23:22:04,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:04" (1/1) ... [2019-11-23 23:22:04,959 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:04" (1/1) ... [2019-11-23 23:22:04,966 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:04" (1/1) ... [2019-11-23 23:22:04,967 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:04" (1/1) ... [2019-11-23 23:22:04,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 23:22:04,970 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 23:22:04,970 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 23:22:04,971 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 23:22:04,972 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:04" (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 23:22:05,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-23 23:22:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 23:22:05,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 23:22:05,025 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-23 23:22:05,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-23 23:22:05,026 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-23 23:22:05,488 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 23:22:05,488 INFO L284 CfgBuilder]: Removed 15 assume(true) statements. [2019-11-23 23:22:05,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:22:05 BoogieIcfgContainer [2019-11-23 23:22:05,490 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 23:22:05,490 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 23:22:05,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 23:22:05,494 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 23:22:05,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:22:04" (1/3) ... [2019-11-23 23:22:05,495 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f10bb84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:22:05, skipping insertion in model container [2019-11-23 23:22:05,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:22:04" (2/3) ... [2019-11-23 23:22:05,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f10bb84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:22:05, skipping insertion in model container [2019-11-23 23:22:05,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:22:05" (3/3) ... [2019-11-23 23:22:05,498 INFO L109 eAbstractionObserver]: Analyzing ICFG max-3-n-u.c [2019-11-23 23:22:05,511 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 23:22:05,518 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 23:22:05,530 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 23:22:05,551 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 23:22:05,551 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 23:22:05,551 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 23:22:05,551 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 23:22:05,551 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 23:22:05,551 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 23:22:05,551 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 23:22:05,552 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 23:22:05,563 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-23 23:22:05,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-23 23:22:05,569 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:22:05,570 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:22:05,571 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:22:05,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:22:05,575 INFO L82 PathProgramCache]: Analyzing trace with hash 1221801966, now seen corresponding path program 1 times [2019-11-23 23:22:05,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:22:05,584 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048171057] [2019-11-23 23:22:05,584 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:22:05,650 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 23:22:05,651 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [568049003] [2019-11-23 23:22:05,651 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 23:22:05,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:22:05,717 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-23 23:22:05,722 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:22:05,773 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 23:22:05,774 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:22:05,785 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 23:22:05,786 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048171057] [2019-11-23 23:22:05,788 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 23:22:05,788 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [568049003] [2019-11-23 23:22:05,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:22:05,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-23 23:22:05,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065314309] [2019-11-23 23:22:05,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:22:05,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:22:05,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:22:05,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:22:05,816 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 4 states. [2019-11-23 23:22:05,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:22:05,902 INFO L93 Difference]: Finished difference Result 30 states and 49 transitions. [2019-11-23 23:22:05,903 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:22:05,904 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-23 23:22:05,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:22:05,915 INFO L225 Difference]: With dead ends: 30 [2019-11-23 23:22:05,915 INFO L226 Difference]: Without dead ends: 18 [2019-11-23 23:22:05,919 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:22:05,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-23 23:22:05,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-23 23:22:05,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-23 23:22:05,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 28 transitions. [2019-11-23 23:22:05,957 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 28 transitions. Word has length 8 [2019-11-23 23:22:05,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:22:05,958 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 28 transitions. [2019-11-23 23:22:05,958 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:22:05,958 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2019-11-23 23:22:05,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-23 23:22:05,959 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:22:05,959 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:22:06,166 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:22:06,169 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:22:06,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:22:06,170 INFO L82 PathProgramCache]: Analyzing trace with hash -1751062516, now seen corresponding path program 1 times [2019-11-23 23:22:06,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:22:06,174 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811763340] [2019-11-23 23:22:06,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:22:06,188 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 23:22:06,189 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1761870311] [2019-11-23 23:22:06,189 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 23:22:06,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:22:06,230 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-23 23:22:06,232 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:22:06,259 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-23 23:22:06,259 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:22:06,278 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-23 23:22:06,279 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811763340] [2019-11-23 23:22:06,279 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 23:22:06,279 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761870311] [2019-11-23 23:22:06,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:22:06,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-23 23:22:06,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623676916] [2019-11-23 23:22:06,282 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-23 23:22:06,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:22:06,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-23 23:22:06,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-23 23:22:06,283 INFO L87 Difference]: Start difference. First operand 18 states and 28 transitions. Second operand 6 states. [2019-11-23 23:22:06,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:22:06,421 INFO L93 Difference]: Finished difference Result 50 states and 81 transitions. [2019-11-23 23:22:06,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 23:22:06,423 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2019-11-23 23:22:06,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:22:06,424 INFO L225 Difference]: With dead ends: 50 [2019-11-23 23:22:06,424 INFO L226 Difference]: Without dead ends: 36 [2019-11-23 23:22:06,425 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-23 23:22:06,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-23 23:22:06,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2019-11-23 23:22:06,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-23 23:22:06,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 47 transitions. [2019-11-23 23:22:06,436 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 47 transitions. Word has length 12 [2019-11-23 23:22:06,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:22:06,437 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 47 transitions. [2019-11-23 23:22:06,437 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-23 23:22:06,437 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 47 transitions. [2019-11-23 23:22:06,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-23 23:22:06,438 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:22:06,438 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:22:06,649 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:22:06,650 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:22:06,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:22:06,650 INFO L82 PathProgramCache]: Analyzing trace with hash -1261856896, now seen corresponding path program 1 times [2019-11-23 23:22:06,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:22:06,651 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156467112] [2019-11-23 23:22:06,651 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:22:06,655 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 23:22:06,666 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [343040039] [2019-11-23 23:22:06,666 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 23:22:06,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:22:06,722 INFO L255 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-23 23:22:06,723 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:22:06,741 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-23 23:22:06,741 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:22:06,755 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-11-23 23:22:06,756 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156467112] [2019-11-23 23:22:06,756 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 23:22:06,756 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343040039] [2019-11-23 23:22:06,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:22:06,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-23 23:22:06,757 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497615864] [2019-11-23 23:22:06,757 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-23 23:22:06,758 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:22:06,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-23 23:22:06,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-23 23:22:06,759 INFO L87 Difference]: Start difference. First operand 32 states and 47 transitions. Second operand 6 states. [2019-11-23 23:22:06,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:22:06,866 INFO L93 Difference]: Finished difference Result 84 states and 131 transitions. [2019-11-23 23:22:06,867 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 23:22:06,867 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-11-23 23:22:06,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:22:06,868 INFO L225 Difference]: With dead ends: 84 [2019-11-23 23:22:06,868 INFO L226 Difference]: Without dead ends: 56 [2019-11-23 23:22:06,869 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-11-23 23:22:06,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-11-23 23:22:06,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2019-11-23 23:22:06,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-23 23:22:06,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 69 transitions. [2019-11-23 23:22:06,883 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 69 transitions. Word has length 20 [2019-11-23 23:22:06,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:22:06,885 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 69 transitions. [2019-11-23 23:22:06,885 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-23 23:22:06,886 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 69 transitions. [2019-11-23 23:22:06,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-23 23:22:06,887 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:22:06,887 INFO L410 BasicCegarLoop]: trace histogram [8, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:22:07,098 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:22:07,098 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:22:07,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:22:07,099 INFO L82 PathProgramCache]: Analyzing trace with hash 1135176448, now seen corresponding path program 1 times [2019-11-23 23:22:07,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:22:07,100 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088774335] [2019-11-23 23:22:07,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:22:07,105 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 23:22:07,106 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [810625034] [2019-11-23 23:22:07,106 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:22:07,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:22:07,164 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-23 23:22:07,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:22:07,198 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-11-23 23:22:07,199 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:22:07,237 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 34 proven. 3 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2019-11-23 23:22:07,237 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088774335] [2019-11-23 23:22:07,238 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 23:22:07,238 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810625034] [2019-11-23 23:22:07,238 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [928555975] [2019-11-23 23:22:07,261 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-11-23 23:22:07,261 INFO L166 IcfgInterpreter]: Building call graph [2019-11-23 23:22:07,268 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-23 23:22:07,276 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-23 23:22:07,276 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-23 23:22:08,601 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 129 [2019-11-23 23:22:09,219 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 143 [2019-11-23 23:22:09,338 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 142 [2019-11-23 23:22:09,571 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 146 [2019-11-23 23:22:22,107 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 202 [2019-11-23 23:22:27,432 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 218 [2019-11-23 23:22:39,526 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 250 [2019-11-23 23:22:41,568 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 256 [2019-11-23 23:22:41,718 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 257 [2019-11-23 23:22:43,504 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 263 DAG size of output: 259 [2019-11-23 23:22:43,642 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 260 [2019-11-23 23:22:45,803 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 269 DAG size of output: 265 [2019-11-23 23:22:56,006 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 287 [2019-11-23 23:22:56,131 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 283 [2019-11-23 23:23:00,890 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 294 DAG size of output: 292 [2019-11-23 23:23:05,425 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 315 [2019-11-23 23:23:05,550 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 313 [2019-11-23 23:23:07,801 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 322 DAG size of output: 319 [2019-11-23 23:23:07,928 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 316 [2019-11-23 23:23:08,059 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2019-11-23 23:23:08,180 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 317 [2019-11-23 23:23:08,309 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2019-11-23 23:23:08,424 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 319 [2019-11-23 23:23:10,881 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 323 [2019-11-23 23:23:11,000 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 324 DAG size of output: 323 [2019-11-23 23:23:13,679 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 326 [2019-11-23 23:23:13,817 WARN L192 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 327 DAG size of output: 326 [2019-11-23 23:23:16,351 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 332 [2019-11-23 23:23:16,475 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 330 [2019-11-23 23:23:19,035 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 341 DAG size of output: 337 [2019-11-23 23:23:19,177 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 334 [2019-11-23 23:23:21,899 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 337 [2019-11-23 23:23:22,017 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 338 DAG size of output: 338 [2019-11-23 23:23:24,599 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 348 DAG size of output: 344 [2019-11-23 23:23:24,754 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 345 DAG size of output: 342 [2019-11-23 23:23:28,192 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 345 [2019-11-23 23:23:28,332 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 346 DAG size of output: 345 [2019-11-23 23:23:31,224 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 348 [2019-11-23 23:23:31,371 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 349 [2019-11-23 23:23:34,793 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 353 [2019-11-23 23:23:34,967 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 354 DAG size of output: 350 [2019-11-23 23:23:35,109 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 350