/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/xor1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 22:55:00,188 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 22:55:00,190 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 22:55:00,209 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 22:55:00,209 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 22:55:00,211 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 22:55:00,213 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 22:55:00,223 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 22:55:00,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 22:55:00,229 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 22:55:00,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 22:55:00,233 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 22:55:00,233 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 22:55:00,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 22:55:00,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 22:55:00,239 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 22:55:00,240 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 22:55:00,241 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 22:55:00,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 22:55:00,247 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 22:55:00,251 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 22:55:00,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 22:55:00,252 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 22:55:00,253 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 22:55:00,255 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-11-23 22:55:00,258 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-23 22:55:00,258 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-23 22:55:00,259 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-23 22:55:00,260 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-23 22:55:00,261 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-23 22:55:00,261 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-23 22:55:00,261 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-23 22:55:00,262 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-23 22:55:00,262 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 22:55:00,263 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 22:55:00,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 22:55:00,264 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 22:55:00,278 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 22:55:00,279 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 22:55:00,279 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-23 22:55:00,280 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-23 22:55:00,280 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-23 22:55:00,280 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-23 22:55:00,280 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-23 22:55:00,280 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-23 22:55:00,281 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-23 22:55:00,281 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-23 22:55:00,281 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-23 22:55:00,281 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-23 22:55:00,281 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-23 22:55:00,282 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-23 22:55:00,282 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-23 22:55:00,282 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 22:55:00,283 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 22:55:00,283 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 22:55:00,283 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 22:55:00,283 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 22:55:00,283 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 22:55:00,283 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 22:55:00,284 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 22:55:00,284 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 22:55:00,284 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 22:55:00,284 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 22:55:00,284 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 22:55:00,285 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 22:55:00,285 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 22:55:00,285 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 22:55:00,285 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 22:55:00,285 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 22:55:00,286 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 22:55:00,286 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-23 22:55:00,286 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 22:55:00,286 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 22:55:00,286 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 22:55:00,286 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-23 22:55:00,605 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 22:55:00,621 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 22:55:00,624 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 22:55:00,626 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 22:55:00,626 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 22:55:00,627 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-crafted/xor1.i [2019-11-23 22:55:00,692 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ed0faa87/fd47c23bb76c4782b76089004f894d65/FLAG2bbd03ae1 [2019-11-23 22:55:01,137 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 22:55:01,139 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-crafted/xor1.i [2019-11-23 22:55:01,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ed0faa87/fd47c23bb76c4782b76089004f894d65/FLAG2bbd03ae1 [2019-11-23 22:55:01,545 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ed0faa87/fd47c23bb76c4782b76089004f894d65 [2019-11-23 22:55:01,553 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 22:55:01,555 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 22:55:01,556 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 22:55:01,556 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 22:55:01,562 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 22:55:01,566 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:55:01" (1/1) ... [2019-11-23 22:55:01,569 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2db4663a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:01, skipping insertion in model container [2019-11-23 22:55:01,569 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:55:01" (1/1) ... [2019-11-23 22:55:01,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 22:55:01,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 22:55:01,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:55:01,813 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 22:55:01,837 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 22:55:01,931 INFO L208 MainTranslator]: Completed translation [2019-11-23 22:55:01,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:01 WrapperNode [2019-11-23 22:55:01,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 22:55:01,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 22:55:01,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 22:55:01,933 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 22:55:01,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:01" (1/1) ... [2019-11-23 22:55:01,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:01" (1/1) ... [2019-11-23 22:55:01,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 22:55:01,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 22:55:01,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 22:55:01,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 22:55:01,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:01" (1/1) ... [2019-11-23 22:55:01,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:01" (1/1) ... [2019-11-23 22:55:01,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:01" (1/1) ... [2019-11-23 22:55:01,987 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:01" (1/1) ... [2019-11-23 22:55:01,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:01" (1/1) ... [2019-11-23 22:55:02,001 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:01" (1/1) ... [2019-11-23 22:55:02,003 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:01" (1/1) ... [2019-11-23 22:55:02,006 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 22:55:02,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 22:55:02,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 22:55:02,007 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 22:55:02,007 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:01" (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 22:55:02,076 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-23 22:55:02,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 22:55:02,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 22:55:02,076 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-23 22:55:02,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-23 22:55:02,077 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-23 22:55:02,567 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 22:55:02,568 INFO L284 CfgBuilder]: Removed 15 assume(true) statements. [2019-11-23 22:55:02,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:55:02 BoogieIcfgContainer [2019-11-23 22:55:02,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 22:55:02,570 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 22:55:02,570 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 22:55:02,573 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 22:55:02,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:55:01" (1/3) ... [2019-11-23 22:55:02,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3d46ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:55:02, skipping insertion in model container [2019-11-23 22:55:02,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:55:01" (2/3) ... [2019-11-23 22:55:02,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e3d46ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:55:02, skipping insertion in model container [2019-11-23 22:55:02,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:55:02" (3/3) ... [2019-11-23 22:55:02,577 INFO L109 eAbstractionObserver]: Analyzing ICFG xor1.i [2019-11-23 22:55:02,587 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 22:55:02,594 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 22:55:02,604 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 22:55:02,623 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 22:55:02,623 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 22:55:02,624 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 22:55:02,624 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 22:55:02,624 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 22:55:02,624 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 22:55:02,624 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 22:55:02,624 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 22:55:02,636 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2019-11-23 22:55:02,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-23 22:55:02,643 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:55:02,644 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:55:02,644 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:55:02,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:55:02,650 INFO L82 PathProgramCache]: Analyzing trace with hash -977729615, now seen corresponding path program 1 times [2019-11-23 22:55:02,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 22:55:02,658 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436076634] [2019-11-23 22:55:02,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:55:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:55:02,796 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 22:55:02,797 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436076634] [2019-11-23 22:55:02,798 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 22:55:02,798 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-23 22:55:02,799 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615088708] [2019-11-23 22:55:02,806 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 22:55:02,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 22:55:02,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 22:55:02,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 22:55:02,822 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2019-11-23 22:55:02,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:55:02,851 INFO L93 Difference]: Finished difference Result 21 states and 31 transitions. [2019-11-23 22:55:02,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 22:55:02,853 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-11-23 22:55:02,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:55:02,863 INFO L225 Difference]: With dead ends: 21 [2019-11-23 22:55:02,864 INFO L226 Difference]: Without dead ends: 10 [2019-11-23 22:55:02,867 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 22:55:02,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-11-23 22:55:02,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-11-23 22:55:02,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-11-23 22:55:02,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 14 transitions. [2019-11-23 22:55:02,907 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 14 transitions. Word has length 8 [2019-11-23 22:55:02,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:55:02,907 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 14 transitions. [2019-11-23 22:55:02,908 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 22:55:02,908 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 14 transitions. [2019-11-23 22:55:02,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-23 22:55:02,909 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:55:02,909 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:55:02,909 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:55:02,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:55:02,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1165895748, now seen corresponding path program 1 times [2019-11-23 22:55:02,910 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 22:55:02,910 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510846135] [2019-11-23 22:55:02,910 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:55:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:55:02,984 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 22:55:02,985 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510846135] [2019-11-23 22:55:02,986 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1610526721] [2019-11-23 22:55:02,986 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 22:55:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:55:03,062 INFO L255 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-23 22:55:03,067 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:55:03,087 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 22:55:03,087 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 22:55:03,101 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 22:55:03,102 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:55:03,102 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3] total 6 [2019-11-23 22:55:03,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660574186] [2019-11-23 22:55:03,104 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:55:03,104 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 22:55:03,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:55:03,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-23 22:55:03,105 INFO L87 Difference]: Start difference. First operand 10 states and 14 transitions. Second operand 4 states. [2019-11-23 22:55:03,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:55:03,156 INFO L93 Difference]: Finished difference Result 22 states and 34 transitions. [2019-11-23 22:55:03,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 22:55:03,156 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-11-23 22:55:03,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:55:03,157 INFO L225 Difference]: With dead ends: 22 [2019-11-23 22:55:03,157 INFO L226 Difference]: Without dead ends: 16 [2019-11-23 22:55:03,158 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 22:55:03,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-11-23 22:55:03,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-11-23 22:55:03,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-11-23 22:55:03,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 20 transitions. [2019-11-23 22:55:03,163 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 20 transitions. Word has length 9 [2019-11-23 22:55:03,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:55:03,163 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 20 transitions. [2019-11-23 22:55:03,163 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:55:03,163 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 20 transitions. [2019-11-23 22:55:03,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-11-23 22:55:03,164 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:55:03,164 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:55:03,369 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:55:03,370 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:55:03,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:55:03,371 INFO L82 PathProgramCache]: Analyzing trace with hash 1510942468, now seen corresponding path program 1 times [2019-11-23 22:55:03,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 22:55:03,372 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851858558] [2019-11-23 22:55:03,372 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:55:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:55:03,441 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 22:55:03,442 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851858558] [2019-11-23 22:55:03,442 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2053436519] [2019-11-23 22:55:03,443 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 22:55:03,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:55:03,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 2 conjunts are in the unsatisfiable core [2019-11-23 22:55:03,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:55:03,514 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 22:55:03,515 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 22:55:03,524 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 22:55:03,524 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-11-23 22:55:03,525 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [3] total 6 [2019-11-23 22:55:03,525 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661403] [2019-11-23 22:55:03,526 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 22:55:03,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 22:55:03,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 22:55:03,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-11-23 22:55:03,527 INFO L87 Difference]: Start difference. First operand 16 states and 20 transitions. Second operand 4 states. [2019-11-23 22:55:03,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 22:55:03,545 INFO L93 Difference]: Finished difference Result 24 states and 30 transitions. [2019-11-23 22:55:03,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 22:55:03,546 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2019-11-23 22:55:03,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 22:55:03,547 INFO L225 Difference]: With dead ends: 24 [2019-11-23 22:55:03,547 INFO L226 Difference]: Without dead ends: 18 [2019-11-23 22:55:03,548 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 22:55:03,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-11-23 22:55:03,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-11-23 22:55:03,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-11-23 22:55:03,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2019-11-23 22:55:03,554 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 15 [2019-11-23 22:55:03,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 22:55:03,554 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2019-11-23 22:55:03,554 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 22:55:03,555 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2019-11-23 22:55:03,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-11-23 22:55:03,555 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 22:55:03,556 INFO L410 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 22:55:03,759 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 22:55:03,760 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 22:55:03,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 22:55:03,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1316778556, now seen corresponding path program 1 times [2019-11-23 22:55:03,762 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 22:55:03,762 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774735927] [2019-11-23 22:55:03,763 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 22:55:03,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:55:03,847 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 22:55:03,847 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774735927] [2019-11-23 22:55:03,848 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441878662] [2019-11-23 22:55:03,848 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 22:55:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 22:55:03,903 INFO L255 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-23 22:55:03,904 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 22:55:03,908 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 22:55:03,909 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 22:55:03,932 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 22:55:03,933 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2015973853] [2019-11-23 22:55:03,970 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2019-11-23 22:55:03,970 INFO L166 IcfgInterpreter]: Building call graph [2019-11-23 22:55:03,977 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-23 22:55:03,987 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-23 22:55:03,988 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-23 22:55:30,059 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 236 [2019-11-23 22:55:30,197 WARN L192 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 237 [2019-11-23 22:55:36,055 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 250 [2019-11-23 22:55:54,826 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 306 DAG size of output: 302 [2019-11-23 22:56:03,717 WARN L192 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 317 [2019-11-23 22:56:03,982 WARN L192 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 318 DAG size of output: 318 [2019-11-23 22:56:06,527 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 322 [2019-11-23 22:56:11,557 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 341 DAG size of output: 338 [2019-11-23 22:56:11,668 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 339 DAG size of output: 333 [2019-11-23 22:56:11,900 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 336 DAG size of output: 334 [2019-11-23 22:56:14,619 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 342 DAG size of output: 340 [2019-11-23 22:56:17,489 WARN L192 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 348 DAG size of output: 346 [2019-11-23 22:56:17,700 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 347 [2019-11-23 22:56:17,825 WARN L192 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 349 [2019-11-23 22:56:17,940 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 350 [2019-11-23 22:56:20,588 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 355 DAG size of output: 354 [2019-11-23 22:56:23,269 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 357 [2019-11-23 22:56:23,409 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 358 DAG size of output: 357 [2019-11-23 22:56:25,826 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 363 DAG size of output: 362 [2019-11-23 22:56:25,942 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 363 DAG size of output: 360 [2019-11-23 22:56:28,674 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 363 [2019-11-23 22:56:28,797 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 364 DAG size of output: 362 [2019-11-23 22:56:28,944 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 364 [2019-11-23 22:56:29,058 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 365 DAG size of output: 364 [2019-11-23 22:56:29,290 WARN L192 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 368 DAG size of output: 368 [2019-11-23 22:56:31,999 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 372 [2019-11-23 22:56:32,125 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 373 DAG size of output: 371 [2019-11-23 22:56:32,254 WARN L192 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 373 [2019-11-23 22:56:32,365 WARN L192 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 374 DAG size of output: 374