/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/add-3-n-u.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 23:19:01,048 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 23:19:01,051 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 23:19:01,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 23:19:01,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 23:19:01,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 23:19:01,066 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 23:19:01,068 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 23:19:01,069 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 23:19:01,070 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 23:19:01,071 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 23:19:01,072 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 23:19:01,073 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 23:19:01,073 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 23:19:01,074 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 23:19:01,076 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 23:19:01,076 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 23:19:01,077 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 23:19:01,079 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 23:19:01,081 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 23:19:01,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 23:19:01,084 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 23:19:01,085 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 23:19:01,086 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 23:19:01,088 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 23:19:01,096 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 23:19:01,097 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 23:19:01,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 23:19:01,098 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 23:19:01,113 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 23:19:01,114 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 23:19:01,114 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-23 23:19:01,115 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-23 23:19:01,115 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-23 23:19:01,115 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-23 23:19:01,115 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-23 23:19:01,115 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-23 23:19:01,116 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-23 23:19:01,116 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-23 23:19:01,116 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-23 23:19:01,116 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-23 23:19:01,116 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-23 23:19:01,117 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-23 23:19:01,117 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-23 23:19:01,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 23:19:01,118 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 23:19:01,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 23:19:01,118 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 23:19:01,118 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 23:19:01,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 23:19:01,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 23:19:01,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 23:19:01,119 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 23:19:01,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 23:19:01,120 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 23:19:01,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 23:19:01,120 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 23:19:01,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 23:19:01,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 23:19:01,121 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 23:19:01,121 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 23:19:01,121 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 23:19:01,121 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-23 23:19:01,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 23:19:01,122 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 23:19:01,122 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 23:19:01,122 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-23 23:19:01,395 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 23:19:01,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 23:19:01,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 23:19:01,418 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 23:19:01,418 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 23:19:01,419 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/add-3-n-u.c [2019-11-23 23:19:01,495 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d679ca4c/89ba94fcf81a4904861abd745ff108fd/FLAG286167326 [2019-11-23 23:19:01,956 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 23:19:01,957 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/add-3-n-u.c [2019-11-23 23:19:01,966 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d679ca4c/89ba94fcf81a4904861abd745ff108fd/FLAG286167326 [2019-11-23 23:19:02,338 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d679ca4c/89ba94fcf81a4904861abd745ff108fd [2019-11-23 23:19:02,348 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 23:19:02,350 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 23:19:02,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 23:19:02,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 23:19:02,354 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 23:19:02,355 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:19:02" (1/1) ... [2019-11-23 23:19:02,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60b9ebb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:02, skipping insertion in model container [2019-11-23 23:19:02,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:19:02" (1/1) ... [2019-11-23 23:19:02,369 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 23:19:02,395 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 23:19:02,610 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:19:02,615 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 23:19:02,644 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:19:02,663 INFO L208 MainTranslator]: Completed translation [2019-11-23 23:19:02,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:02 WrapperNode [2019-11-23 23:19:02,663 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 23:19:02,664 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 23:19:02,664 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 23:19:02,664 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 23:19:02,754 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:02" (1/1) ... [2019-11-23 23:19:02,771 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:02" (1/1) ... [2019-11-23 23:19:02,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 23:19:02,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 23:19:02,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 23:19:02,809 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 23:19:02,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:02" (1/1) ... [2019-11-23 23:19:02,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:02" (1/1) ... [2019-11-23 23:19:02,821 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:02" (1/1) ... [2019-11-23 23:19:02,821 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:02" (1/1) ... [2019-11-23 23:19:02,832 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:02" (1/1) ... [2019-11-23 23:19:02,841 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:02" (1/1) ... [2019-11-23 23:19:02,847 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:02" (1/1) ... [2019-11-23 23:19:02,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 23:19:02,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 23:19:02,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 23:19:02,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 23:19:02,855 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:02" (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 23:19:02,908 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-23 23:19:02,909 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 23:19:02,909 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 23:19:02,910 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-23 23:19:02,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-23 23:19:02,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-23 23:19:03,413 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 23:19:03,414 INFO L284 CfgBuilder]: Removed 15 assume(true) statements. [2019-11-23 23:19:03,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:19:03 BoogieIcfgContainer [2019-11-23 23:19:03,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 23:19:03,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 23:19:03,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 23:19:03,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 23:19:03,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:19:02" (1/3) ... [2019-11-23 23:19:03,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b1b7a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:19:03, skipping insertion in model container [2019-11-23 23:19:03,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:19:02" (2/3) ... [2019-11-23 23:19:03,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34b1b7a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:19:03, skipping insertion in model container [2019-11-23 23:19:03,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:19:03" (3/3) ... [2019-11-23 23:19:03,431 INFO L109 eAbstractionObserver]: Analyzing ICFG add-3-n-u.c [2019-11-23 23:19:03,441 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 23:19:03,449 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 23:19:03,461 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 23:19:03,480 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 23:19:03,480 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 23:19:03,480 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 23:19:03,480 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 23:19:03,481 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 23:19:03,481 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 23:19:03,481 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 23:19:03,481 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 23:19:03,492 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2019-11-23 23:19:03,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-23 23:19:03,498 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:19:03,499 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:19:03,499 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:19:03,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:19:03,505 INFO L82 PathProgramCache]: Analyzing trace with hash 1356992151, now seen corresponding path program 1 times [2019-11-23 23:19:03,512 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:19:03,513 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [787890793] [2019-11-23 23:19:03,513 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:19:03,579 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 23:19:03,580 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2111846734] [2019-11-23 23:19:03,580 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 23:19:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:19:03,646 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-23 23:19:03,652 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:19:03,705 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 23:19:03,706 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:19:03,719 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 23:19:03,720 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [787890793] [2019-11-23 23:19:03,720 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 23:19:03,721 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111846734] [2019-11-23 23:19:03,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:19:03,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2019-11-23 23:19:03,723 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122731733] [2019-11-23 23:19:03,729 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:19:03,730 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:19:03,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:19:03,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:19:03,749 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 4 states. [2019-11-23 23:19:03,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:19:03,841 INFO L93 Difference]: Finished difference Result 30 states and 49 transitions. [2019-11-23 23:19:03,842 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:19:03,844 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-11-23 23:19:03,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:19:03,855 INFO L225 Difference]: With dead ends: 30 [2019-11-23 23:19:03,856 INFO L226 Difference]: Without dead ends: 18 [2019-11-23 23:19:03,860 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 23:19:03,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-23 23:19:03,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-23 23:19:03,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-23 23:19:03,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 28 transitions. [2019-11-23 23:19:03,906 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 28 transitions. Word has length 8 [2019-11-23 23:19:03,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:19:03,906 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 28 transitions. [2019-11-23 23:19:03,907 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:19:03,907 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 28 transitions. [2019-11-23 23:19:03,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-23 23:19:03,908 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:19:03,908 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:19:04,114 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:19:04,114 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:19:04,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:19:04,115 INFO L82 PathProgramCache]: Analyzing trace with hash -799933635, now seen corresponding path program 1 times [2019-11-23 23:19:04,115 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:19:04,115 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192276418] [2019-11-23 23:19:04,115 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:19:04,130 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 23:19:04,131 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [381939835] [2019-11-23 23:19:04,131 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 23:19:04,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:19:04,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-23 23:19:04,198 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:19:04,223 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 23:19:04,224 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:19:04,247 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 23:19:04,248 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192276418] [2019-11-23 23:19:04,250 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 23:19:04,250 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381939835] [2019-11-23 23:19:04,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:19:04,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-23 23:19:04,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281764791] [2019-11-23 23:19:04,253 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-23 23:19:04,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:19:04,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-23 23:19:04,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-23 23:19:04,256 INFO L87 Difference]: Start difference. First operand 18 states and 28 transitions. Second operand 6 states. [2019-11-23 23:19:04,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:19:04,392 INFO L93 Difference]: Finished difference Result 50 states and 81 transitions. [2019-11-23 23:19:04,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 23:19:04,393 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2019-11-23 23:19:04,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:19:04,394 INFO L225 Difference]: With dead ends: 50 [2019-11-23 23:19:04,395 INFO L226 Difference]: Without dead ends: 36 [2019-11-23 23:19:04,396 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 23:19:04,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-23 23:19:04,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2019-11-23 23:19:04,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-11-23 23:19:04,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 47 transitions. [2019-11-23 23:19:04,407 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 47 transitions. Word has length 12 [2019-11-23 23:19:04,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:19:04,408 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 47 transitions. [2019-11-23 23:19:04,408 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-23 23:19:04,408 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 47 transitions. [2019-11-23 23:19:04,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-11-23 23:19:04,410 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:19:04,410 INFO L410 BasicCegarLoop]: trace histogram [4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:19:04,614 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:19:04,615 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:19:04,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:19:04,616 INFO L82 PathProgramCache]: Analyzing trace with hash -181411939, now seen corresponding path program 1 times [2019-11-23 23:19:04,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:19:04,617 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651606041] [2019-11-23 23:19:04,617 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:19:04,621 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 23:19:04,622 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1562037597] [2019-11-23 23:19:04,622 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 23:19:04,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:19:04,681 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-23 23:19:04,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:19:04,706 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 23:19:04,707 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:19:04,723 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 23:19:04,723 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651606041] [2019-11-23 23:19:04,724 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 23:19:04,724 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1562037597] [2019-11-23 23:19:04,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:19:04,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-11-23 23:19:04,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029513952] [2019-11-23 23:19:04,725 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-11-23 23:19:04,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:19:04,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-11-23 23:19:04,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-11-23 23:19:04,726 INFO L87 Difference]: Start difference. First operand 32 states and 47 transitions. Second operand 6 states. [2019-11-23 23:19:04,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:19:04,848 INFO L93 Difference]: Finished difference Result 84 states and 131 transitions. [2019-11-23 23:19:04,848 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 23:19:04,849 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 20 [2019-11-23 23:19:04,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:19:04,850 INFO L225 Difference]: With dead ends: 84 [2019-11-23 23:19:04,850 INFO L226 Difference]: Without dead ends: 56 [2019-11-23 23:19:04,851 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 23:19:04,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-11-23 23:19:04,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 52. [2019-11-23 23:19:04,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-11-23 23:19:04,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 69 transitions. [2019-11-23 23:19:04,869 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 69 transitions. Word has length 20 [2019-11-23 23:19:04,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:19:04,870 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 69 transitions. [2019-11-23 23:19:04,870 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-11-23 23:19:04,871 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 69 transitions. [2019-11-23 23:19:04,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-23 23:19:04,872 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:19:04,872 INFO L410 BasicCegarLoop]: trace histogram [8, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:19:05,075 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:19:05,075 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:19:05,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:19:05,076 INFO L82 PathProgramCache]: Analyzing trace with hash -701769315, now seen corresponding path program 1 times [2019-11-23 23:19:05,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:19:05,076 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697601978] [2019-11-23 23:19:05,076 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:19:05,082 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2019-11-23 23:19:05,082 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [256190892] [2019-11-23 23:19:05,082 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 23:19:05,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:19:05,142 INFO L255 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 5 conjunts are in the unsatisfiable core [2019-11-23 23:19:05,144 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:19:05,178 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 23:19:05,179 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:19:05,218 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 23:19:05,219 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697601978] [2019-11-23 23:19:05,219 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 23:19:05,219 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256190892] [2019-11-23 23:19:05,219 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1209332655] [2019-11-23 23:19:05,260 INFO L159 IcfgInterpreter]: Started Sifa with 11 locations of interest [2019-11-23 23:19:05,260 INFO L166 IcfgInterpreter]: Building call graph [2019-11-23 23:19:05,266 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-23 23:19:05,281 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-23 23:19:05,281 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-23 23:19:06,064 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 112 [2019-11-23 23:19:06,206 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 113 [2019-11-23 23:19:06,639 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 123 [2019-11-23 23:19:07,024 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 132 [2019-11-23 23:19:07,167 WARN L192 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 132 [2019-11-23 23:19:07,655 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 142 [2019-11-23 23:19:07,806 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 142 [2019-11-23 23:19:08,068 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 159 [2019-11-23 23:19:08,777 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 169 [2019-11-23 23:19:09,065 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 163 [2019-11-23 23:19:09,738 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 174 [2019-11-23 23:19:09,881 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 166 [2019-11-23 23:19:10,008 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 164 [2019-11-23 23:19:11,045 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 181 [2019-11-23 23:19:12,161 WARN L192 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 184 [2019-11-23 23:19:14,398 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-23 23:19:14,651 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 182 [2019-11-23 23:19:16,936 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2019-11-23 23:19:18,209 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 199 [2019-11-23 23:19:18,391 WARN L192 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-11-23 23:19:18,587 WARN L192 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 190 [2019-11-23 23:19:19,814 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 201 [2019-11-23 23:19:21,348 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 205 [2019-11-23 23:19:23,348 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 211 [2019-11-23 23:19:23,546 WARN L192 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-11-23 23:19:23,755 WARN L192 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 202 [2019-11-23 23:19:25,433 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 215 [2019-11-23 23:19:27,197 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 218 [2019-11-23 23:19:29,570 WARN L192 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 230 [2019-11-23 23:19:31,719 WARN L192 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 230 [2019-11-23 23:19:33,921 WARN L192 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 235 [2019-11-23 23:19:34,083 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 223 [2019-11-23 23:19:34,273 WARN L192 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 223 [2019-11-23 23:19:36,571 WARN L192 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 238 [2019-11-23 23:19:38,833 WARN L192 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 241 [2019-11-23 23:19:41,183 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 244 [2019-11-23 23:19:43,557 WARN L192 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 247 [2019-11-23 23:19:46,396 WARN L192 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 253 [2019-11-23 23:19:46,531 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 243 [2019-11-23 23:19:46,651 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 240 [2019-11-23 23:19:49,499 WARN L192 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 262 DAG size of output: 262 [2019-11-23 23:19:52,535 WARN L192 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 264 [2019-11-23 23:19:55,501 WARN L192 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 268 DAG size of output: 266 [2019-11-23 23:19:58,609 WARN L192 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 270 [2019-11-23 23:20:02,011 WARN L192 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 274 DAG size of output: 274 [2019-11-23 23:20:05,260 WARN L192 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 276 [2019-11-23 23:20:05,477 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 261 [2019-11-23 23:20:09,004 WARN L192 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 284 DAG size of output: 283 [2019-11-23 23:20:12,574 WARN L192 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 287 DAG size of output: 285 [2019-11-23 23:20:12,703 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2019-11-23 23:20:12,815 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 270 DAG size of output: 269 [2019-11-23 23:20:16,252 WARN L192 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 290 DAG size of output: 289 [2019-11-23 23:20:16,392 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 272 [2019-11-23 23:20:16,506 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 273 [2019-11-23 23:20:19,970 WARN L192 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 293 DAG size of output: 291 [2019-11-23 23:20:20,107 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 277 [2019-11-23 23:20:20,223 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 278 DAG size of output: 276 [2019-11-23 23:20:23,757 WARN L192 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 296 DAG size of output: 294 [2019-11-23 23:20:24,013 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 279 DAG size of output: 279 [2019-11-23 23:20:27,669 WARN L192 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 299 DAG size of output: 298 [2019-11-23 23:20:27,814 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 283 [2019-11-23 23:20:27,924 WARN L192 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 284 DAG size of output: 284 [2019-11-23 23:20:31,676 WARN L192 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 302 DAG size of output: 298 [2019-11-23 23:20:31,812 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 288 [2019-11-23 23:20:31,942 WARN L192 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 289 DAG size of output: 287