/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/array-crafted/mapavg3.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:53:24,960 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:53:24,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:53:24,974 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 22:53:24,974 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 22:53:24,975 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 22:53:24,976 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 22:53:24,978 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 22:53:24,980 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 22:53:24,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 22:53:24,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 22:53:24,983 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 22:53:24,983 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 22:53:24,984 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 22:53:24,985 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 22:53:24,986 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 22:53:24,987 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 22:53:24,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 22:53:24,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 22:53:24,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 22:53:24,993 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 22:53:24,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 22:53:24,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 22:53:24,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 22:53:24,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-23 22:53:24,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-23 22:53:24,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-23 22:53:24,999 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-23 22:53:25,000 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-23 22:53:25,001 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-23 22:53:25,001 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-23 22:53:25,002 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-23 22:53:25,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-23 22:53:25,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-23 22:53:25,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-23 22:53:25,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-23 22:53:25,005 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-23 22:53:25,006 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-23 22:53:25,006 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 22:53:25,007 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 22:53:25,007 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 22:53:25,008 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-23 22:53:25,032 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:53:25,032 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:53:25,035 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-23 22:53:25,036 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-23 22:53:25,036 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-23 22:53:25,036 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-23 22:53:25,036 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-23 22:53:25,036 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-23 22:53:25,037 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-23 22:53:25,037 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-23 22:53:25,037 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-23 22:53:25,037 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-23 22:53:25,037 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-23 22:53:25,039 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-23 22:53:25,039 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-23 22:53:25,040 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:53:25,040 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:53:25,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:53:25,040 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:53:25,041 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:53:25,041 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:53:25,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:53:25,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:53:25,042 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:53:25,042 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:53:25,042 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:53:25,043 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:53:25,043 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:53:25,044 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:53:25,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:53:25,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:53:25,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:53:25,045 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:53:25,045 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-23 22:53:25,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:53:25,046 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:53:25,046 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:53:25,046 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-23 22:53:25,361 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:53:25,374 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:53:25,377 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:53:25,379 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:53:25,379 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:53:25,380 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-crafted/mapavg3.i [2019-11-23 22:53:25,450 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5db4a796/d5fd4391f50a407ea16655597d56f804/FLAG783f70d61 [2019-11-23 22:53:25,926 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:53:25,926 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-crafted/mapavg3.i [2019-11-23 22:53:25,933 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5db4a796/d5fd4391f50a407ea16655597d56f804/FLAG783f70d61 [2019-11-23 22:53:26,341 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5db4a796/d5fd4391f50a407ea16655597d56f804 [2019-11-23 22:53:26,349 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:53:26,350 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:53:26,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:53:26,352 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:53:26,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:53:26,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:53:26" (1/1) ... [2019-11-23 22:53:26,359 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bce732a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26, skipping insertion in model container [2019-11-23 22:53:26,359 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:53:26" (1/1) ... [2019-11-23 22:53:26,367 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:53:26,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:53:26,580 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:53:26,590 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:53:26,627 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:53:26,642 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:53:26,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26 WrapperNode [2019-11-23 22:53:26,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:53:26,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:53:26,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:53:26,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:53:26,736 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26" (1/1) ... [2019-11-23 22:53:26,743 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26" (1/1) ... [2019-11-23 22:53:26,771 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:53:26,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:53:26,771 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:53:26,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:53:26,782 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26" (1/1) ... [2019-11-23 22:53:26,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26" (1/1) ... [2019-11-23 22:53:26,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26" (1/1) ... [2019-11-23 22:53:26,785 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26" (1/1) ... [2019-11-23 22:53:26,792 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26" (1/1) ... [2019-11-23 22:53:26,798 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26" (1/1) ... [2019-11-23 22:53:26,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26" (1/1) ... [2019-11-23 22:53:26,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:53:26,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:53:26,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:53:26,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:53:26,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:53:26,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-23 22:53:26,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:53:26,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:53:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-23 22:53:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-23 22:53:26,869 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-23 22:53:27,371 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:53:27,371 INFO L284 CfgBuilder]: Removed 15 assume(true) statements. [2019-11-23 22:53:27,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:53:27 BoogieIcfgContainer [2019-11-23 22:53:27,373 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:53:27,374 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:53:27,374 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:53:27,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:53:27,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:53:26" (1/3) ... [2019-11-23 22:53:27,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e2c5bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:53:27, skipping insertion in model container [2019-11-23 22:53:27,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:53:26" (2/3) ... [2019-11-23 22:53:27,379 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e2c5bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:53:27, skipping insertion in model container [2019-11-23 22:53:27,379 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:53:27" (3/3) ... [2019-11-23 22:53:27,380 INFO L109 eAbstractionObserver]: Analyzing ICFG mapavg3.i [2019-11-23 22:53:27,390 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:53:27,397 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 22:53:27,408 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 22:53:27,432 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:53:27,433 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:53:27,433 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:53:27,433 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:53:27,433 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:53:27,434 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:53:27,434 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:53:27,434 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:53:27,449 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-23 22:53:27,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-23 22:53:27,456 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:53:27,457 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:53:27,457 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:53:27,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:53:27,463 INFO L82 PathProgramCache]: Analyzing trace with hash -977729615, now seen corresponding path program 1 times [2019-11-23 22:53:27,470 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 22:53:27,471 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718571512] [2019-11-23 22:53:27,471 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:53:27,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:53:27,609 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:53:27,610 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718571512] [2019-11-23 22:53:27,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:53:27,612 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 22:53:27,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872047447] [2019-11-23 22:53:27,618 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 22:53:27,618 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 22:53:27,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 22:53:27,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:53:27,635 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2019-11-23 22:53:27,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:53:27,668 INFO L93 Difference]: Finished difference Result 21 states and 31 transitions. [2019-11-23 22:53:27,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 22:53:27,670 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-23 22:53:27,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:53:27,680 INFO L225 Difference]: With dead ends: 21 [2019-11-23 22:53:27,680 INFO L226 Difference]: Without dead ends: 10 [2019-11-23 22:53:27,684 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:53:27,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-23 22:53:27,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-23 22:53:27,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-23 22:53:27,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 14 transitions. [2019-11-23 22:53:27,719 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 14 transitions. Word has length 8 [2019-11-23 22:53:27,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:53:27,719 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 14 transitions. [2019-11-23 22:53:27,720 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 22:53:27,720 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 14 transitions. [2019-11-23 22:53:27,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-23 22:53:27,720 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:53:27,721 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:53:27,721 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:53:27,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:53:27,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1165895748, now seen corresponding path program 1 times [2019-11-23 22:53:27,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 22:53:27,722 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992913934] [2019-11-23 22:53:27,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:53:27,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:53:27,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 22:53:27,804 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992913934] [2019-11-23 22:53:27,805 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1164248814] [2019-11-23 22:53:27,805 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:53:27,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:53:27,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-23 22:53:27,872 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:53:27,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-23 22:53:27,898 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 22:53:27,916 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-11-23 22:53:27,918 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:53:27,918 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3] total 6 [2019-11-23 22:53:27,920 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217618427] [2019-11-23 22:53:27,921 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:53:27,921 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 22:53:27,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:53:27,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-23 22:53:27,922 INFO L87 Difference]: Start difference. First operand 10 states and 14 transitions. Second operand 4 states. [2019-11-23 22:53:27,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:53:27,984 INFO L93 Difference]: Finished difference Result 22 states and 34 transitions. [2019-11-23 22:53:27,984 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 22:53:27,985 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-23 22:53:27,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:53:27,985 INFO L225 Difference]: With dead ends: 22 [2019-11-23 22:53:27,986 INFO L226 Difference]: Without dead ends: 16 [2019-11-23 22:53:27,987 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-23 22:53:27,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-23 22:53:27,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-23 22:53:27,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-23 22:53:27,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2019-11-23 22:53:27,994 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 9 [2019-11-23 22:53:27,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:53:27,996 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2019-11-23 22:53:27,996 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:53:27,996 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2019-11-23 22:53:27,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-23 22:53:27,998 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:53:27,999 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:53:28,203 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:53:28,203 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:53:28,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:53:28,204 INFO L82 PathProgramCache]: Analyzing trace with hash 1510942468, now seen corresponding path program 1 times [2019-11-23 22:53:28,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 22:53:28,205 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506007548] [2019-11-23 22:53:28,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:53:28,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:53:28,282 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-11-23 22:53:28,285 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506007548] [2019-11-23 22:53:28,285 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747519573] [2019-11-23 22:53:28,286 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:53:28,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:53:28,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-23 22:53:28,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:53:28,371 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-23 22:53:28,372 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 22:53:28,383 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-11-23 22:53:28,383 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:53:28,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3] total 6 [2019-11-23 22:53:28,384 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702418534] [2019-11-23 22:53:28,384 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:53:28,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 22:53:28,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:53:28,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-23 22:53:28,386 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand 4 states. [2019-11-23 22:53:28,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:53:28,405 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2019-11-23 22:53:28,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 22:53:28,406 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-23 22:53:28,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:53:28,407 INFO L225 Difference]: With dead ends: 24 [2019-11-23 22:53:28,407 INFO L226 Difference]: Without dead ends: 18 [2019-11-23 22:53:28,408 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-23 22:53:28,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-23 22:53:28,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-23 22:53:28,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-23 22:53:28,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2019-11-23 22:53:28,413 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 15 [2019-11-23 22:53:28,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:53:28,414 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2019-11-23 22:53:28,414 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:53:28,414 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2019-11-23 22:53:28,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-23 22:53:28,415 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:53:28,415 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:53:28,616 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:53:28,616 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:53:28,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:53:28,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1316778556, now seen corresponding path program 1 times [2019-11-23 22:53:28,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 22:53:28,618 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764755230] [2019-11-23 22:53:28,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:53:28,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:53:28,707 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-23 22:53:28,708 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764755230] [2019-11-23 22:53:28,708 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [654274899] [2019-11-23 22:53:28,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:53:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:53:28,772 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-23 22:53:28,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:53:28,778 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-23 22:53:28,778 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 22:53:28,803 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2019-11-23 22:53:28,804 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1727340034] [2019-11-23 22:53:28,844 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2019-11-23 22:53:28,844 INFO L166 IcfgInterpreter]: Building call graph [2019-11-23 22:53:28,852 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-23 22:53:28,863 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-23 22:53:28,864 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-23 22:53:46,271 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 204 [2019-11-23 22:53:46,410 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2019-11-23 22:53:46,548 WARN L192 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 207 [2019-11-23 22:54:03,889 WARN L192 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 253 [2019-11-23 22:54:17,540 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 301 DAG size of output: 300 [2019-11-23 22:54:19,769 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 308 [2019-11-23 22:54:22,131 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 311 [2019-11-23 22:54:24,559 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 315 DAG size of output: 315 [2019-11-23 22:54:26,758 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2019-11-23 22:54:26,874 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 317 [2019-11-23 22:54:27,002 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 318 [2019-11-23 22:54:29,407 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 330 DAG size of output: 324 [2019-11-23 22:54:31,694 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 335 DAG size of output: 331 [2019-11-23 22:54:31,812 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 331 DAG size of output: 326 [2019-11-23 22:54:34,521 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 333 DAG size of output: 330 [2019-11-23 22:54:37,093 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 335 DAG size of output: 332 [2019-11-23 22:54:37,341 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 334 DAG size of output: 334 [2019-11-23 22:54:40,524 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 338 [2019-11-23 22:54:40,658 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 339 [2019-11-23 22:54:43,121 WARN L192 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 343 [2019-11-23 22:54:43,247 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 344 DAG size of output: 343 [2019-11-23 22:54:45,646 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 348 DAG size of output: 347 [2019-11-23 22:54:45,796 WARN L192 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 348 DAG size of output: 345 [2019-11-23 22:54:48,271 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 348 [2019-11-23 22:54:48,395 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 348 [2019-11-23 22:54:50,803 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 356 DAG size of output: 352 [2019-11-23 22:54:50,925 WARN L192 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 352 DAG size of output: 351 [2019-11-23 22:54:53,687 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 355 [2019-11-23 22:54:53,818 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 356 DAG size of output: 355 [2019-11-23 22:54:56,402 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 358 [2019-11-23 22:54:56,535 WARN L192 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 359 DAG size of output: 357 [2019-11-23 22:54:56,668 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 359 [2019-11-23 22:54:56,786 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 360 DAG size of output: 360