/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-tiling/nr3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-6598664 [2019-11-23 23:25:16,813 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-23 23:25:16,816 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-23 23:25:16,836 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-23 23:25:16,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-23 23:25:16,838 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-23 23:25:16,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-23 23:25:16,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-23 23:25:16,852 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-23 23:25:16,853 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-23 23:25:16,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-23 23:25:16,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-23 23:25:16,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-23 23:25:16,859 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-23 23:25:16,862 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-23 23:25:16,863 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-23 23:25:16,864 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-23 23:25:16,867 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-23 23:25:16,869 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-23 23:25:16,873 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-23 23:25:16,878 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-23 23:25:16,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-23 23:25:16,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-23 23:25:16,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-23 23:25:16,886 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-23 23:25:16,886 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-23 23:25:16,886 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-23 23:25:16,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-23 23:25:16,890 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-23 23:25:16,890 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-23 23:25:16,891 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-23 23:25:16,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-23 23:25:16,892 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-23 23:25:16,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-23 23:25:16,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-23 23:25:16,895 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-23 23:25:16,895 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-23 23:25:16,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-23 23:25:16,896 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-23 23:25:16,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-23 23:25:16,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-23 23:25:16,900 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 23:25:16,930 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-23 23:25:16,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-23 23:25:16,931 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-23 23:25:16,931 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-23 23:25:16,932 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-23 23:25:16,932 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-23 23:25:16,932 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-23 23:25:16,932 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-23 23:25:16,932 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-23 23:25:16,933 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-23 23:25:16,933 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-23 23:25:16,933 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-23 23:25:16,933 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-23 23:25:16,933 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-23 23:25:16,934 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-23 23:25:16,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-23 23:25:16,934 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-23 23:25:16,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-23 23:25:16,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-23 23:25:16,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-23 23:25:16,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-23 23:25:16,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-23 23:25:16,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-23 23:25:16,936 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-23 23:25:16,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-23 23:25:16,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-23 23:25:16,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-23 23:25:16,937 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-23 23:25:16,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-23 23:25:16,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-23 23:25:16,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-23 23:25:16,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-23 23:25:16,938 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-23 23:25:16,938 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-23 23:25:16,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-23 23:25:16,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-23 23:25:16,938 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-23 23:25:16,939 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-11-23 23:25:17,222 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-23 23:25:17,236 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-23 23:25:17,240 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-23 23:25:17,242 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-23 23:25:17,242 INFO L275 PluginConnector]: CDTParser initialized [2019-11-23 23:25:17,243 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-tiling/nr3.c [2019-11-23 23:25:17,316 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/871fb0afc/ca0038a251e04457802768a9f33ac933/FLAG8c2515fb8 [2019-11-23 23:25:17,765 INFO L306 CDTParser]: Found 1 translation units. [2019-11-23 23:25:17,766 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-tiling/nr3.c [2019-11-23 23:25:17,773 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/871fb0afc/ca0038a251e04457802768a9f33ac933/FLAG8c2515fb8 [2019-11-23 23:25:18,136 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/871fb0afc/ca0038a251e04457802768a9f33ac933 [2019-11-23 23:25:18,144 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-23 23:25:18,145 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-11-23 23:25:18,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-23 23:25:18,147 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-23 23:25:18,150 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-23 23:25:18,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:25:18" (1/1) ... [2019-11-23 23:25:18,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65b4c14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:18, skipping insertion in model container [2019-11-23 23:25:18,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 11:25:18" (1/1) ... [2019-11-23 23:25:18,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-23 23:25:18,191 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-23 23:25:18,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:25:18,379 INFO L203 MainTranslator]: Completed pre-run [2019-11-23 23:25:18,403 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-23 23:25:18,423 INFO L208 MainTranslator]: Completed translation [2019-11-23 23:25:18,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:18 WrapperNode [2019-11-23 23:25:18,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-23 23:25:18,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-23 23:25:18,425 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-23 23:25:18,425 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-23 23:25:18,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:18" (1/1) ... [2019-11-23 23:25:18,526 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:18" (1/1) ... [2019-11-23 23:25:18,544 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-23 23:25:18,545 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-23 23:25:18,545 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-23 23:25:18,545 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-23 23:25:18,552 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:18" (1/1) ... [2019-11-23 23:25:18,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:18" (1/1) ... [2019-11-23 23:25:18,559 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:18" (1/1) ... [2019-11-23 23:25:18,559 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:18" (1/1) ... [2019-11-23 23:25:18,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:18" (1/1) ... [2019-11-23 23:25:18,570 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:18" (1/1) ... [2019-11-23 23:25:18,572 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:18" (1/1) ... [2019-11-23 23:25:18,574 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-23 23:25:18,575 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-23 23:25:18,575 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-23 23:25:18,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-23 23:25:18,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:18" (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 23:25:18,627 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-23 23:25:18,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-23 23:25:18,628 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-23 23:25:18,628 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-23 23:25:18,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-23 23:25:18,628 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-23 23:25:19,061 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-23 23:25:19,062 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-11-23 23:25:19,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:25:19 BoogieIcfgContainer [2019-11-23 23:25:19,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-23 23:25:19,065 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-23 23:25:19,065 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-23 23:25:19,067 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-23 23:25:19,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 11:25:18" (1/3) ... [2019-11-23 23:25:19,068 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e3b0cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:25:19, skipping insertion in model container [2019-11-23 23:25:19,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 11:25:18" (2/3) ... [2019-11-23 23:25:19,069 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e3b0cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 11:25:19, skipping insertion in model container [2019-11-23 23:25:19,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 11:25:19" (3/3) ... [2019-11-23 23:25:19,071 INFO L109 eAbstractionObserver]: Analyzing ICFG nr3.c [2019-11-23 23:25:19,078 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-23 23:25:19,084 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-23 23:25:19,096 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-23 23:25:19,118 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-23 23:25:19,118 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-23 23:25:19,118 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-23 23:25:19,118 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-23 23:25:19,118 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-23 23:25:19,118 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-23 23:25:19,118 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-23 23:25:19,118 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-23 23:25:19,130 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-11-23 23:25:19,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-23 23:25:19,135 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:25:19,136 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:25:19,137 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:25:19,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:25:19,141 INFO L82 PathProgramCache]: Analyzing trace with hash -116069518, now seen corresponding path program 1 times [2019-11-23 23:25:19,149 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:25:19,150 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53709075] [2019-11-23 23:25:19,150 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:25:19,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:25:19,465 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 23:25:19,466 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53709075] [2019-11-23 23:25:19,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:25:19,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-11-23 23:25:19,469 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068617432] [2019-11-23 23:25:19,474 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-11-23 23:25:19,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:25:19,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-11-23 23:25:19,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:25:19,488 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 4 states. [2019-11-23 23:25:19,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:25:19,561 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2019-11-23 23:25:19,562 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-11-23 23:25:19,564 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-11-23 23:25:19,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:25:19,574 INFO L225 Difference]: With dead ends: 26 [2019-11-23 23:25:19,574 INFO L226 Difference]: Without dead ends: 12 [2019-11-23 23:25:19,577 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-11-23 23:25:19,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-23 23:25:19,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 11. [2019-11-23 23:25:19,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-11-23 23:25:19,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2019-11-23 23:25:19,615 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 7 [2019-11-23 23:25:19,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:25:19,616 INFO L462 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2019-11-23 23:25:19,616 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-11-23 23:25:19,616 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-11-23 23:25:19,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-23 23:25:19,617 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:25:19,617 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:25:19,617 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:25:19,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:25:19,618 INFO L82 PathProgramCache]: Analyzing trace with hash -2051170697, now seen corresponding path program 1 times [2019-11-23 23:25:19,618 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:25:19,619 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527999865] [2019-11-23 23:25:19,619 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:25:19,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:25:19,671 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:25:19,672 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527999865] [2019-11-23 23:25:19,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-23 23:25:19,673 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-23 23:25:19,673 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2140638029] [2019-11-23 23:25:19,675 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-11-23 23:25:19,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:25:19,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-23 23:25:19,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-23 23:25:19,677 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 3 states. [2019-11-23 23:25:19,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:25:19,695 INFO L93 Difference]: Finished difference Result 19 states and 24 transitions. [2019-11-23 23:25:19,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-23 23:25:19,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-11-23 23:25:19,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:25:19,697 INFO L225 Difference]: With dead ends: 19 [2019-11-23 23:25:19,697 INFO L226 Difference]: Without dead ends: 12 [2019-11-23 23:25:19,699 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 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 23:25:19,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-11-23 23:25:19,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-11-23 23:25:19,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-11-23 23:25:19,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-11-23 23:25:19,708 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 9 [2019-11-23 23:25:19,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:25:19,708 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-11-23 23:25:19,708 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-11-23 23:25:19,708 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-11-23 23:25:19,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-23 23:25:19,710 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:25:19,710 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:25:19,710 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:25:19,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:25:19,712 INFO L82 PathProgramCache]: Analyzing trace with hash 774643838, now seen corresponding path program 1 times [2019-11-23 23:25:19,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:25:19,712 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701050942] [2019-11-23 23:25:19,712 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:25:19,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:25:19,795 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:25:19,795 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701050942] [2019-11-23 23:25:19,796 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [785007619] [2019-11-23 23:25:19,796 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 23:25:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:25:19,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjunts are in the unsatisfiable core [2019-11-23 23:25:19,864 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:25:19,896 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:25:19,897 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:25:19,923 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:25:19,923 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [858489272] [2019-11-23 23:25:19,964 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2019-11-23 23:25:19,964 INFO L166 IcfgInterpreter]: Building call graph [2019-11-23 23:25:19,971 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-23 23:25:19,978 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-23 23:25:19,978 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-23 23:25:20,227 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:20,290 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:20,301 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:20,451 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:20,473 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:20,486 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:20,541 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:20,552 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:20,774 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:20,849 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:20,864 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:20,910 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:20,922 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:20,934 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:20,945 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:21,196 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:21,221 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:21,240 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:21,257 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:21,331 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:21,351 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:21,399 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:21,460 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:21,509 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:21,525 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:21,754 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:21,764 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:21,808 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:21,873 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:22,042 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:22,195 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:22,210 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:22,223 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:22,238 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:22,252 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:22,262 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:22,287 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:22,476 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:22,496 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:22,514 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:22,530 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:22,626 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:22,640 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:22,683 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:22,697 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:22,708 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:22,900 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:22,915 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:22,930 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:23,484 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:23,505 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:23,588 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:23,604 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:23,655 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:23,690 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:23,703 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:23,716 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:23,803 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:23,977 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:24,077 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:24,088 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:24,101 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:24,140 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:24,288 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:24,341 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:24,354 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:24,366 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:24,441 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:24,455 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:24,491 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:24,557 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:24,798 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:24,826 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:24,913 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:24,925 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:24,937 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:24,949 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:24,959 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:24,970 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:24,980 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:24,991 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,110 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,125 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,203 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,242 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,260 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,276 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,292 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,304 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,318 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,346 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,378 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,413 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,425 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,661 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,675 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,693 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,707 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,721 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,735 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,749 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,764 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,794 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,904 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,914 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,926 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:25,959 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:26,011 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:26,053 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:26,401 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:26,422 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:26,531 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:26,681 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:26,803 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:26,808 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:26,977 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:27,011 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:27,114 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:27,221 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:27,268 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:27,357 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:27,490 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-23 23:25:27,791 WARN L192 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2019-11-23 23:25:27,998 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 42 [2019-11-23 23:25:28,001 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 23:25:28,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-11-23 23:25:28,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 5 [2019-11-23 23:25:28,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433892253] [2019-11-23 23:25:28,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-23 23:25:28,002 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:25:28,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-23 23:25:28,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2019-11-23 23:25:28,003 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 5 states. [2019-11-23 23:25:28,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:25:28,031 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2019-11-23 23:25:28,033 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-23 23:25:28,033 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-11-23 23:25:28,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:25:28,034 INFO L225 Difference]: With dead ends: 22 [2019-11-23 23:25:28,034 INFO L226 Difference]: Without dead ends: 14 [2019-11-23 23:25:28,035 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2019-11-23 23:25:28,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-11-23 23:25:28,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-11-23 23:25:28,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-11-23 23:25:28,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-11-23 23:25:28,039 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2019-11-23 23:25:28,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:25:28,040 INFO L462 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-11-23 23:25:28,040 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-23 23:25:28,040 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-11-23 23:25:28,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-11-23 23:25:28,040 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:25:28,040 INFO L410 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:25:28,241 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:25:28,242 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:25:28,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:25:28,243 INFO L82 PathProgramCache]: Analyzing trace with hash -630981730, now seen corresponding path program 2 times [2019-11-23 23:25:28,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:25:28,243 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643434696] [2019-11-23 23:25:28,243 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:25:28,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:25:28,696 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:25:28,697 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643434696] [2019-11-23 23:25:28,697 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069505823] [2019-11-23 23:25:28,697 INFO L92 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 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 23:25:28,738 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-11-23 23:25:28,738 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-11-23 23:25:28,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 29 conjunts are in the unsatisfiable core [2019-11-23 23:25:28,741 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:25:29,167 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 38 [2019-11-23 23:25:29,486 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:25:29,486 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:25:30,001 WARN L192 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 17 [2019-11-23 23:25:30,071 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:25:30,071 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2142658010] [2019-11-23 23:25:30,072 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2019-11-23 23:25:30,072 INFO L166 IcfgInterpreter]: Building call graph [2019-11-23 23:25:30,073 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-23 23:25:30,073 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-23 23:25:30,073 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-23 23:25:30,151 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,165 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,171 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,218 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,228 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,265 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,272 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,277 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,427 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,438 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,462 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,488 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,497 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,506 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,516 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,705 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,722 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,738 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,788 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,873 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,915 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,932 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,951 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:30,985 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:31,042 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:31,228 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:31,288 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:31,327 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:31,335 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:31,479 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:31,490 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:31,501 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:31,513 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:31,524 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:31,602 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:31,660 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:31,672 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:31,839 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:31,851 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:31,866 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:31,877 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:31,892 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:31,952 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:32,029 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:32,044 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:32,207 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:32,256 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:32,269 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:32,364 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:32,725 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:32,742 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:32,951 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:32,967 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:32,990 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:33,108 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:33,122 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:33,177 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:33,192 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:33,205 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:33,215 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:33,225 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:33,296 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:33,324 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:33,464 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:33,590 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:33,606 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:33,618 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:33,662 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:33,679 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:33,745 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:33,759 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,007 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,031 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,050 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,115 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,219 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,262 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,271 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,279 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,288 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,295 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,446 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,480 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,491 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,504 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,530 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,539 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,552 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,575 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,587 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,596 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,605 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,632 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,639 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,865 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,893 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,904 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,936 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:34,987 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:35,006 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:35,020 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:35,030 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:35,042 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:35,071 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:35,107 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:35,142 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:35,181 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:35,193 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:35,224 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:35,679 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:35,705 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:35,724 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:35,968 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:36,080 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:36,086 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:36,408 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:36,435 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:36,463 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:36,609 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:36,643 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:36,705 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:36,996 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-23 23:25:37,491 WARN L192 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2019-11-23 23:25:37,758 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 7 [2019-11-23 23:25:37,797 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-23 23:25:37,797 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-11-23 23:25:37,797 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 9] total 23 [2019-11-23 23:25:37,798 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14992216] [2019-11-23 23:25:37,798 INFO L442 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-11-23 23:25:37,798 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-23 23:25:37,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-11-23 23:25:37,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=735, Unknown=0, NotChecked=0, Total=870 [2019-11-23 23:25:37,801 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 23 states. [2019-11-23 23:25:38,052 WARN L192 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-11-23 23:25:38,238 WARN L192 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 49 [2019-11-23 23:25:40,721 WARN L192 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 55 DAG size of output: 41 [2019-11-23 23:25:40,897 WARN L192 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 45 [2019-11-23 23:25:41,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-23 23:25:41,455 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2019-11-23 23:25:41,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-11-23 23:25:41,456 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 12 [2019-11-23 23:25:41,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-23 23:25:41,458 INFO L225 Difference]: With dead ends: 42 [2019-11-23 23:25:41,458 INFO L226 Difference]: Without dead ends: 40 [2019-11-23 23:25:41,459 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 14 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=358, Invalid=1622, Unknown=0, NotChecked=0, Total=1980 [2019-11-23 23:25:41,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2019-11-23 23:25:41,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 24. [2019-11-23 23:25:41,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-11-23 23:25:41,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2019-11-23 23:25:41,466 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 12 [2019-11-23 23:25:41,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-23 23:25:41,466 INFO L462 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2019-11-23 23:25:41,466 INFO L463 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-11-23 23:25:41,466 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2019-11-23 23:25:41,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-23 23:25:41,467 INFO L402 BasicCegarLoop]: Found error trace [2019-11-23 23:25:41,467 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-23 23:25:41,672 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-23 23:25:41,673 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-23 23:25:41,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-23 23:25:41,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1579306594, now seen corresponding path program 1 times [2019-11-23 23:25:41,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-23 23:25:41,674 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927392007] [2019-11-23 23:25:41,675 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-23 23:25:41,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:25:41,892 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:25:41,892 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927392007] [2019-11-23 23:25:41,892 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858078823] [2019-11-23 23:25:41,893 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 23:25:41,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-23 23:25:41,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 24 conjunts are in the unsatisfiable core [2019-11-23 23:25:41,928 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-23 23:25:41,957 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:42,083 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:25:42,083 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-23 23:25:42,331 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 1 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-23 23:25:42,332 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1915066834] [2019-11-23 23:25:42,333 INFO L159 IcfgInterpreter]: Started Sifa with 10 locations of interest [2019-11-23 23:25:42,333 INFO L166 IcfgInterpreter]: Building call graph [2019-11-23 23:25:42,334 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-23 23:25:42,334 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-23 23:25:42,335 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-23 23:25:42,387 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:42,433 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:42,441 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:42,488 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:42,499 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:42,534 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:42,548 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:42,577 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:42,766 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:42,809 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:42,826 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:42,842 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:42,913 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:42,928 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:42,978 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:43,145 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:43,167 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:43,186 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:43,221 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:43,240 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:43,253 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:43,266 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:43,319 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:43,363 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:43,375 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:43,563 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:43,573 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:43,675 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:43,682 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:43,766 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:43,777 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:43,842 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:43,868 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:43,878 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:43,888 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:43,934 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:43,947 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:44,161 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:44,212 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:44,227 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:44,241 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:44,255 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:44,315 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:44,378 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:44,392 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:44,408 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:44,419 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:44,440 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:44,607 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:44,876 WARN L192 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 137 [2019-11-23 23:25:45,145 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:45,193 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:45,238 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:45,537 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:45,556 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:45,582 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:45,602 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:45,683 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:45,704 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:45,774 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:45,797 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:45,819 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:45,870 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:45,887 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,059 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,144 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,152 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,178 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,191 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,233 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,241 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,265 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,384 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,395 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,440 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,465 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,476 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,485 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,495 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,612 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,700 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,710 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,718 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,726 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,740 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,747 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,789 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,800 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,810 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,844 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,853 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,860 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,957 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,971 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:46,987 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,001 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,014 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,046 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,057 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,111 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,179 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,192 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,259 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,268 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,279 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,315 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,324 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,351 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,441 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,489 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,500 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,511 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,525 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,538 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,564 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,574 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,586 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,657 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,665 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,703 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,869 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,885 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,900 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,915 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,930 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:47,993 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,006 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,017 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,053 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,062 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,133 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,142 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,162 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,185 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,273 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,287 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,398 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,414 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,426 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,440 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,453 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,485 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,496 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,506 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,534 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,581 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,603 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,803 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,816 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,850 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,864 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,896 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:48,911 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:49,034 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:49,051 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:49,128 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:49,139 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:49,168 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:49,181 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:49,193 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:49,205 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:49,234 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:49,554 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:49,585 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:49,664 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:49,839 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:49,863 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:49,947 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-11-23 23:25:53,706 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 365 DAG size of output: 337 [2019-11-23 23:25:54,401 WARN L192 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 306 [2019-11-23 23:25:55,309 WARN L192 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 307 [2019-11-23 23:25:55,441 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 308 DAG size of output: 307 [2019-11-23 23:25:56,317 WARN L192 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 310 [2019-11-23 23:25:56,453 WARN L192 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 311 DAG size of output: 310 [2019-11-23 23:25:57,332 WARN L192 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 313 [2019-11-23 23:25:57,473 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 314 DAG size of output: 313 [2019-11-23 23:25:58,366 WARN L192 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 316 [2019-11-23 23:25:58,515 WARN L192 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 317 DAG size of output: 316 [2019-11-23 23:25:59,386 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 319 [2019-11-23 23:25:59,526 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 320 DAG size of output: 319 [2019-11-23 23:26:00,413 WARN L192 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 322 [2019-11-23 23:26:00,564 WARN L192 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 323 DAG size of output: 322 [2019-11-23 23:26:01,428 WARN L192 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 325 [2019-11-23 23:26:01,574 WARN L192 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 326 DAG size of output: 326 [2019-11-23 23:26:01,811 WARN L192 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 435 DAG size of output: 406 [2019-11-23 23:26:03,415 WARN L192 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 378 DAG size of output: 370 [2019-11-23 23:26:05,870 WARN L192 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 371 [2019-11-23 23:26:06,098 WARN L192 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 372 DAG size of output: 371 [2019-11-23 23:26:08,603 WARN L192 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 374 [2019-11-23 23:26:08,837 WARN L192 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 375 DAG size of output: 374 [2019-11-23 23:26:11,337 WARN L192 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 377 [2019-11-23 23:26:11,573 WARN L192 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 378 DAG size of output: 377 [2019-11-23 23:26:14,107 WARN L192 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 380 [2019-11-23 23:26:14,349 WARN L192 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 381 DAG size of output: 380 [2019-11-23 23:26:16,819 WARN L192 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 383 [2019-11-23 23:26:17,071 WARN L192 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 384 DAG size of output: 383 [2019-11-23 23:26:19,657 WARN L192 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 386 [2019-11-23 23:26:19,904 WARN L192 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 387 DAG size of output: 386 [2019-11-23 23:26:22,449 WARN L192 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 389 [2019-11-23 23:26:22,693 WARN L192 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 390 DAG size of output: 389 [2019-11-23 23:26:25,200 WARN L192 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 392 [2019-11-23 23:26:25,454 WARN L192 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 393 DAG size of output: 392 [2019-11-23 23:26:28,011 WARN L192 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 395 [2019-11-23 23:26:28,268 WARN L192 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 396 DAG size of output: 395 [2019-11-23 23:26:30,783 WARN L192 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 398 [2019-11-23 23:26:31,037 WARN L192 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 399 DAG size of output: 398 [2019-11-23 23:26:33,581 WARN L192 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 401 [2019-11-23 23:26:33,850 WARN L192 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 402 DAG size of output: 401 [2019-11-23 23:26:36,429 WARN L192 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 404 [2019-11-23 23:26:36,696 WARN L192 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 405 DAG size of output: 404 [2019-11-23 23:26:39,321 WARN L192 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 407 [2019-11-23 23:26:39,590 WARN L192 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 408 DAG size of output: 407 [2019-11-23 23:26:42,146 WARN L192 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 410 [2019-11-23 23:26:42,416 WARN L192 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 411 [2019-11-23 23:26:42,837 WARN L192 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 560 DAG size of output: 524 [2019-11-23 23:26:44,380 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5712 conjuctions. This might take some time... [2019-11-23 23:26:47,919 WARN L192 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 489 DAG size of output: 481