java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label32_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 11:49:29,957 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 11:49:29,959 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 11:49:29,972 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 11:49:29,972 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 11:49:29,974 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 11:49:29,975 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 11:49:29,977 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 11:49:29,979 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 11:49:29,980 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 11:49:29,980 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 11:49:29,981 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 11:49:29,982 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 11:49:29,984 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 11:49:29,985 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 11:49:29,986 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 11:49:29,989 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 11:49:29,995 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 11:49:29,997 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 11:49:30,001 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 11:49:30,002 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 11:49:30,006 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 11:49:30,011 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-18 11:49:30,013 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-18 11:49:30,013 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-18 11:49:30,014 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-18 11:49:30,015 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-18 11:49:30,016 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-18 11:49:30,017 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-18 11:49:30,020 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-18 11:49:30,020 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-18 11:49:30,021 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-18 11:49:30,021 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-18 11:49:30,022 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-18 11:49:30,024 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-18 11:49:30,025 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-18 11:49:30,025 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf [2018-09-18 11:49:30,051 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 11:49:30,051 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 11:49:30,052 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 11:49:30,053 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 11:49:30,053 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 11:49:30,054 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 11:49:30,054 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 11:49:30,054 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-09-18 11:49:30,055 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 11:49:30,055 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 11:49:30,055 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 11:49:30,055 INFO L133 SettingsManager]: * Interval Domain=false [2018-09-18 11:49:30,056 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 11:49:30,057 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 11:49:30,057 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 11:49:30,058 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 11:49:30,058 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 11:49:30,058 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 11:49:30,058 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 11:49:30,058 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 11:49:30,059 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 11:49:30,059 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 11:49:30,059 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 11:49:30,060 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 11:49:30,061 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 11:49:30,061 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 11:49:30,061 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 11:49:30,061 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 11:49:30,062 INFO L133 SettingsManager]: * Trace refinement strategy=RUBBER_TAIPAN [2018-09-18 11:49:30,062 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 11:49:30,062 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 11:49:30,062 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 11:49:30,063 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 11:49:30,063 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 11:49:30,128 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 11:49:30,143 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 11:49:30,148 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 11:49:30,150 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 11:49:30,151 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 11:49:30,151 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label32_true-unreach-call_false-termination.c [2018-09-18 11:49:30,539 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ba88e000/1855c2aec0b34acc811b1381e2830023/FLAGd75e00069 [2018-09-18 11:49:30,844 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 11:49:30,844 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label32_true-unreach-call_false-termination.c [2018-09-18 11:49:30,863 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ba88e000/1855c2aec0b34acc811b1381e2830023/FLAGd75e00069 [2018-09-18 11:49:30,879 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ba88e000/1855c2aec0b34acc811b1381e2830023 [2018-09-18 11:49:30,889 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 11:49:30,892 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 11:49:30,893 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 11:49:30,893 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 11:49:30,900 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 11:49:30,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:49:30" (1/1) ... [2018-09-18 11:49:30,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75d6e4c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:30, skipping insertion in model container [2018-09-18 11:49:30,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:49:30" (1/1) ... [2018-09-18 11:49:30,918 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 11:49:31,493 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:49:31,512 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 11:49:31,679 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 11:49:31,730 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:31 WrapperNode [2018-09-18 11:49:31,730 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 11:49:31,731 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 11:49:31,731 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 11:49:31,731 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 11:49:31,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:31" (1/1) ... [2018-09-18 11:49:31,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:31" (1/1) ... [2018-09-18 11:49:31,878 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 11:49:31,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 11:49:31,879 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 11:49:31,879 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 11:49:32,058 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:31" (1/1) ... [2018-09-18 11:49:32,058 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:31" (1/1) ... [2018-09-18 11:49:32,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:31" (1/1) ... [2018-09-18 11:49:32,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:31" (1/1) ... [2018-09-18 11:49:32,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:31" (1/1) ... [2018-09-18 11:49:32,122 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:31" (1/1) ... [2018-09-18 11:49:32,135 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:31" (1/1) ... [2018-09-18 11:49:32,145 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 11:49:32,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 11:49:32,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 11:49:32,146 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 11:49:32,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:31" (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 [2018-09-18 11:49:32,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 11:49:32,212 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 11:49:32,212 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-09-18 11:49:32,212 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-09-18 11:49:32,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 11:49:32,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 11:49:32,213 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 11:49:32,213 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 11:49:35,976 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 11:49:35,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:49:35 BoogieIcfgContainer [2018-09-18 11:49:35,978 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 11:49:35,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-18 11:49:35,980 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-18 11:49:35,986 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-18 11:49:35,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.09 11:49:30" (1/3) ... [2018-09-18 11:49:35,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbb7334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:49:35, skipping insertion in model container [2018-09-18 11:49:35,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:31" (2/3) ... [2018-09-18 11:49:35,988 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bbb7334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.09 11:49:35, skipping insertion in model container [2018-09-18 11:49:35,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:49:35" (3/3) ... [2018-09-18 11:49:35,991 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label32_true-unreach-call_false-termination.c [2018-09-18 11:49:36,002 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-09-18 11:49:36,012 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-18 11:49:36,065 INFO L130 ementStrategyFactory]: Using default assertion order modulation [2018-09-18 11:49:36,066 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-18 11:49:36,067 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-18 11:49:36,067 INFO L383 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-09-18 11:49:36,067 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-18 11:49:36,067 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-18 11:49:36,067 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-18 11:49:36,067 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-18 11:49:36,068 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-18 11:49:36,096 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states. [2018-09-18 11:49:36,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2018-09-18 11:49:36,107 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:36,108 INFO L376 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:49:36,109 INFO L423 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:36,115 INFO L82 PathProgramCache]: Analyzing trace with hash -1019361724, now seen corresponding path program 1 times [2018-09-18 11:49:36,118 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:36,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:36,172 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:36,172 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:36,172 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:36,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:36,641 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:49:36,643 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:49:36,644 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:49:36,644 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:49:36,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:49:36,666 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:49:36,667 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:49:36,669 INFO L87 Difference]: Start difference. First operand 255 states. Second operand 4 states. [2018-09-18 11:49:39,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:49:39,766 INFO L93 Difference]: Finished difference Result 894 states and 1611 transitions. [2018-09-18 11:49:39,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:49:39,769 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 62 [2018-09-18 11:49:39,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:49:39,794 INFO L225 Difference]: With dead ends: 894 [2018-09-18 11:49:39,794 INFO L226 Difference]: Without dead ends: 633 [2018-09-18 11:49:39,802 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:49:39,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2018-09-18 11:49:39,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 633. [2018-09-18 11:49:39,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 633 states. [2018-09-18 11:49:39,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 633 states to 633 states and 962 transitions. [2018-09-18 11:49:39,905 INFO L78 Accepts]: Start accepts. Automaton has 633 states and 962 transitions. Word has length 62 [2018-09-18 11:49:39,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:49:39,906 INFO L480 AbstractCegarLoop]: Abstraction has 633 states and 962 transitions. [2018-09-18 11:49:39,906 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:49:39,906 INFO L276 IsEmpty]: Start isEmpty. Operand 633 states and 962 transitions. [2018-09-18 11:49:39,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2018-09-18 11:49:39,921 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:39,922 INFO L376 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:49:39,922 INFO L423 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:39,923 INFO L82 PathProgramCache]: Analyzing trace with hash 585274651, now seen corresponding path program 1 times [2018-09-18 11:49:39,923 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:39,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:39,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:39,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:39,926 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:40,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:40,290 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:49:40,291 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-18 11:49:40,291 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-09-18 11:49:40,291 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:49:40,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-18 11:49:40,294 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-18 11:49:40,294 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:49:40,294 INFO L87 Difference]: Start difference. First operand 633 states and 962 transitions. Second operand 4 states. [2018-09-18 11:49:43,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:49:43,845 INFO L93 Difference]: Finished difference Result 2170 states and 3490 transitions. [2018-09-18 11:49:43,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-18 11:49:43,846 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 175 [2018-09-18 11:49:43,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:49:43,864 INFO L225 Difference]: With dead ends: 2170 [2018-09-18 11:49:43,865 INFO L226 Difference]: Without dead ends: 1543 [2018-09-18 11:49:43,870 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-09-18 11:49:43,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2018-09-18 11:49:43,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1543. [2018-09-18 11:49:43,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1543 states. [2018-09-18 11:49:43,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2271 transitions. [2018-09-18 11:49:43,945 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2271 transitions. Word has length 175 [2018-09-18 11:49:43,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:49:43,946 INFO L480 AbstractCegarLoop]: Abstraction has 1543 states and 2271 transitions. [2018-09-18 11:49:43,947 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-18 11:49:43,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2271 transitions. [2018-09-18 11:49:43,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2018-09-18 11:49:43,958 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:43,958 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:49:43,959 INFO L423 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:43,959 INFO L82 PathProgramCache]: Analyzing trace with hash -2093465648, now seen corresponding path program 1 times [2018-09-18 11:49:43,959 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:43,960 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:43,960 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:43,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:43,961 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:44,371 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 132 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:49:44,371 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:49:44,372 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:49:44,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:44,384 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:49:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:44,500 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:49:44,746 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-18 11:49:44,747 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:49:45,041 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2018-09-18 11:49:45,062 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 11:49:45,062 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 11 [2018-09-18 11:49:45,062 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:49:45,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:49:45,063 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:49:45,064 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:49:45,064 INFO L87 Difference]: Start difference. First operand 1543 states and 2271 transitions. Second operand 3 states. [2018-09-18 11:49:47,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:49:47,609 INFO L93 Difference]: Finished difference Result 4178 states and 6414 transitions. [2018-09-18 11:49:47,612 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:49:47,613 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 250 [2018-09-18 11:49:47,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:49:47,635 INFO L225 Difference]: With dead ends: 4178 [2018-09-18 11:49:47,635 INFO L226 Difference]: Without dead ends: 2641 [2018-09-18 11:49:47,646 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 510 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:49:47,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2641 states. [2018-09-18 11:49:47,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2641 to 2641. [2018-09-18 11:49:47,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2641 states. [2018-09-18 11:49:47,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2641 states to 2641 states and 3692 transitions. [2018-09-18 11:49:47,741 INFO L78 Accepts]: Start accepts. Automaton has 2641 states and 3692 transitions. Word has length 250 [2018-09-18 11:49:47,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:49:47,742 INFO L480 AbstractCegarLoop]: Abstraction has 2641 states and 3692 transitions. [2018-09-18 11:49:47,742 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:49:47,743 INFO L276 IsEmpty]: Start isEmpty. Operand 2641 states and 3692 transitions. [2018-09-18 11:49:47,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2018-09-18 11:49:47,754 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:47,755 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:49:47,755 INFO L423 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:47,755 INFO L82 PathProgramCache]: Analyzing trace with hash -237430168, now seen corresponding path program 1 times [2018-09-18 11:49:47,755 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:47,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:47,757 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:47,757 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:47,757 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:47,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:48,255 WARN L178 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 31 [2018-09-18 11:49:49,122 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 40 [2018-09-18 11:49:49,331 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 203 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:49:49,332 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:49:49,332 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:49:49,342 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:49,342 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:49:49,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:49,473 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:49:49,731 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-18 11:49:49,731 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:49:50,254 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2018-09-18 11:49:50,276 INFO L313 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-09-18 11:49:50,276 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [10] total 11 [2018-09-18 11:49:50,276 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:49:50,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-18 11:49:50,278 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-18 11:49:50,278 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:49:50,278 INFO L87 Difference]: Start difference. First operand 2641 states and 3692 transitions. Second operand 3 states. [2018-09-18 11:49:51,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:49:51,446 INFO L93 Difference]: Finished difference Result 6557 states and 9566 transitions. [2018-09-18 11:49:51,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-18 11:49:51,450 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 270 [2018-09-18 11:49:51,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:49:51,481 INFO L225 Difference]: With dead ends: 6557 [2018-09-18 11:49:51,481 INFO L226 Difference]: Without dead ends: 3922 [2018-09-18 11:49:51,503 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 556 GetRequests, 538 SyntacticMatches, 9 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2018-09-18 11:49:51,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3922 states. [2018-09-18 11:49:51,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3922 to 3922. [2018-09-18 11:49:51,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3922 states. [2018-09-18 11:49:51,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3922 states to 3922 states and 5607 transitions. [2018-09-18 11:49:51,622 INFO L78 Accepts]: Start accepts. Automaton has 3922 states and 5607 transitions. Word has length 270 [2018-09-18 11:49:51,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:49:51,623 INFO L480 AbstractCegarLoop]: Abstraction has 3922 states and 5607 transitions. [2018-09-18 11:49:51,623 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-18 11:49:51,623 INFO L276 IsEmpty]: Start isEmpty. Operand 3922 states and 5607 transitions. [2018-09-18 11:49:51,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 319 [2018-09-18 11:49:51,648 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:51,648 INFO L376 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:49:51,648 INFO L423 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:51,649 INFO L82 PathProgramCache]: Analyzing trace with hash -2076743928, now seen corresponding path program 1 times [2018-09-18 11:49:51,649 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:51,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:51,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:51,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:51,651 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:51,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:52,223 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-18 11:49:52,439 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-18 11:49:53,164 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 165 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:49:53,164 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:49:53,164 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:49:53,172 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:53,172 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:49:53,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:53,263 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:49:53,785 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-09-18 11:49:53,785 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:49:54,008 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2018-09-18 11:49:54,542 INFO L134 CoverageAnalysis]: Checked inductivity of 223 backedges. 110 proven. 108 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:49:54,564 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:49:54,564 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 5] total 16 [2018-09-18 11:49:54,564 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:49:54,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:49:54,565 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:49:54,565 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2018-09-18 11:49:54,565 INFO L87 Difference]: Start difference. First operand 3922 states and 5607 transitions. Second operand 5 states. [2018-09-18 11:49:57,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:49:57,993 INFO L93 Difference]: Finished difference Result 10038 states and 14679 transitions. [2018-09-18 11:49:57,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:49:57,993 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 318 [2018-09-18 11:49:57,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:49:58,038 INFO L225 Difference]: With dead ends: 10038 [2018-09-18 11:49:58,039 INFO L226 Difference]: Without dead ends: 6122 [2018-09-18 11:49:58,061 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 652 GetRequests, 633 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2018-09-18 11:49:58,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6122 states. [2018-09-18 11:49:58,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6122 to 6057. [2018-09-18 11:49:58,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6057 states. [2018-09-18 11:49:58,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6057 states to 6057 states and 8904 transitions. [2018-09-18 11:49:58,230 INFO L78 Accepts]: Start accepts. Automaton has 6057 states and 8904 transitions. Word has length 318 [2018-09-18 11:49:58,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:49:58,231 INFO L480 AbstractCegarLoop]: Abstraction has 6057 states and 8904 transitions. [2018-09-18 11:49:58,231 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:49:58,231 INFO L276 IsEmpty]: Start isEmpty. Operand 6057 states and 8904 transitions. [2018-09-18 11:49:58,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2018-09-18 11:49:58,256 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:49:58,257 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:49:58,257 INFO L423 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:49:58,258 INFO L82 PathProgramCache]: Analyzing trace with hash 1305549715, now seen corresponding path program 1 times [2018-09-18 11:49:58,258 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:49:58,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:58,259 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:58,259 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:49:58,259 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:49:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:58,557 WARN L178 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-09-18 11:49:58,877 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 165 proven. 132 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-09-18 11:49:58,878 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:49:58,878 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:49:58,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:49:58,895 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:49:59,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:49:59,009 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:49:59,529 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 195 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2018-09-18 11:49:59,529 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:49:59,687 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 165 proven. 132 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-09-18 11:49:59,707 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:49:59,708 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 9 [2018-09-18 11:49:59,708 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:49:59,709 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:49:59,709 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:49:59,709 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-09-18 11:49:59,710 INFO L87 Difference]: Start difference. First operand 6057 states and 8904 transitions. Second operand 5 states. [2018-09-18 11:50:01,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:50:01,403 INFO L93 Difference]: Finished difference Result 11992 states and 18006 transitions. [2018-09-18 11:50:01,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-18 11:50:01,406 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 389 [2018-09-18 11:50:01,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:50:01,435 INFO L225 Difference]: With dead ends: 11992 [2018-09-18 11:50:01,435 INFO L226 Difference]: Without dead ends: 5941 [2018-09-18 11:50:01,456 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 786 GetRequests, 772 SyntacticMatches, 4 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2018-09-18 11:50:01,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5941 states. [2018-09-18 11:50:01,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5941 to 5750. [2018-09-18 11:50:01,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5750 states. [2018-09-18 11:50:01,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5750 states to 5750 states and 7788 transitions. [2018-09-18 11:50:01,589 INFO L78 Accepts]: Start accepts. Automaton has 5750 states and 7788 transitions. Word has length 389 [2018-09-18 11:50:01,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:50:01,589 INFO L480 AbstractCegarLoop]: Abstraction has 5750 states and 7788 transitions. [2018-09-18 11:50:01,590 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:50:01,590 INFO L276 IsEmpty]: Start isEmpty. Operand 5750 states and 7788 transitions. [2018-09-18 11:50:01,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2018-09-18 11:50:01,612 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:01,612 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:50:01,612 INFO L423 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:01,613 INFO L82 PathProgramCache]: Analyzing trace with hash 158547031, now seen corresponding path program 1 times [2018-09-18 11:50:01,613 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:01,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:01,614 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:01,614 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:01,614 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:01,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:02,488 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 253 proven. 190 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:50:02,489 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:02,489 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:50:02,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:02,502 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:02,604 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:02,950 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 339 proven. 53 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-09-18 11:50:02,950 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:03,479 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 175 proven. 268 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:50:03,500 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:03,501 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:50:03,517 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:03,517 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:03,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:03,741 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:04,668 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-18 11:50:05,140 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 339 proven. 53 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2018-09-18 11:50:05,140 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:05,877 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 175 proven. 268 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-09-18 11:50:05,879 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:50:05,880 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8, 8, 8] total 26 [2018-09-18 11:50:05,880 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:50:05,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-09-18 11:50:05,881 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-09-18 11:50:05,881 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=498, Unknown=0, NotChecked=0, Total=650 [2018-09-18 11:50:05,881 INFO L87 Difference]: Start difference. First operand 5750 states and 7788 transitions. Second operand 15 states. [2018-09-18 11:50:10,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:50:10,455 INFO L93 Difference]: Finished difference Result 12682 states and 17211 transitions. [2018-09-18 11:50:10,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2018-09-18 11:50:10,456 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 403 [2018-09-18 11:50:10,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:50:10,489 INFO L225 Difference]: With dead ends: 12682 [2018-09-18 11:50:10,489 INFO L226 Difference]: Without dead ends: 6737 [2018-09-18 11:50:10,514 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 1655 GetRequests, 1611 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 536 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=415, Invalid=1307, Unknown=0, NotChecked=0, Total=1722 [2018-09-18 11:50:10,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6737 states. [2018-09-18 11:50:10,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6737 to 6493. [2018-09-18 11:50:10,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6493 states. [2018-09-18 11:50:10,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6493 states to 6493 states and 8142 transitions. [2018-09-18 11:50:10,658 INFO L78 Accepts]: Start accepts. Automaton has 6493 states and 8142 transitions. Word has length 403 [2018-09-18 11:50:10,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:50:10,659 INFO L480 AbstractCegarLoop]: Abstraction has 6493 states and 8142 transitions. [2018-09-18 11:50:10,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-09-18 11:50:10,659 INFO L276 IsEmpty]: Start isEmpty. Operand 6493 states and 8142 transitions. [2018-09-18 11:50:10,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 429 [2018-09-18 11:50:10,683 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:10,683 INFO L376 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:50:10,684 INFO L423 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:10,684 INFO L82 PathProgramCache]: Analyzing trace with hash -325502148, now seen corresponding path program 1 times [2018-09-18 11:50:10,684 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:10,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:10,685 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:10,685 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:10,685 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:11,572 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 274 proven. 224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-18 11:50:11,573 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:11,573 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:50:11,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:11,581 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:11,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:11,692 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:11,840 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 273 proven. 0 refuted. 0 times theorem prover too weak. 225 trivial. 0 not checked. [2018-09-18 11:50:11,840 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:12,146 INFO L134 CoverageAnalysis]: Checked inductivity of 498 backedges. 165 proven. 210 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2018-09-18 11:50:12,169 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-09-18 11:50:12,169 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [14, 5] total 18 [2018-09-18 11:50:12,169 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-09-18 11:50:12,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-18 11:50:12,170 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-18 11:50:12,171 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2018-09-18 11:50:12,171 INFO L87 Difference]: Start difference. First operand 6493 states and 8142 transitions. Second operand 5 states. [2018-09-18 11:50:14,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:50:14,734 INFO L93 Difference]: Finished difference Result 18351 states and 23372 transitions. [2018-09-18 11:50:14,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-18 11:50:14,735 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 428 [2018-09-18 11:50:14,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:50:14,773 INFO L225 Difference]: With dead ends: 18351 [2018-09-18 11:50:14,773 INFO L226 Difference]: Without dead ends: 11864 [2018-09-18 11:50:14,802 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 875 GetRequests, 853 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=349, Unknown=0, NotChecked=0, Total=420 [2018-09-18 11:50:14,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11864 states. [2018-09-18 11:50:14,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11864 to 11707. [2018-09-18 11:50:14,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11707 states. [2018-09-18 11:50:15,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11707 states to 11707 states and 14532 transitions. [2018-09-18 11:50:15,021 INFO L78 Accepts]: Start accepts. Automaton has 11707 states and 14532 transitions. Word has length 428 [2018-09-18 11:50:15,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:50:15,022 INFO L480 AbstractCegarLoop]: Abstraction has 11707 states and 14532 transitions. [2018-09-18 11:50:15,022 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-18 11:50:15,022 INFO L276 IsEmpty]: Start isEmpty. Operand 11707 states and 14532 transitions. [2018-09-18 11:50:15,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2018-09-18 11:50:15,064 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:15,065 INFO L376 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:50:15,065 INFO L423 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:15,066 INFO L82 PathProgramCache]: Analyzing trace with hash -1606280521, now seen corresponding path program 1 times [2018-09-18 11:50:15,066 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:15,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:15,067 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:15,067 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:15,067 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:15,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:15,938 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 452 proven. 112 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2018-09-18 11:50:15,938 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:15,938 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:50:15,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:15,946 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:16,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:16,080 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:16,331 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 720 proven. 2 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2018-09-18 11:50:16,331 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:16,602 WARN L178 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-09-18 11:50:16,966 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 452 proven. 112 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2018-09-18 11:50:16,987 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:16,987 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:50:17,003 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:17,004 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:17,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:17,296 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:17,473 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 716 proven. 6 refuted. 0 times theorem prover too weak. 163 trivial. 0 not checked. [2018-09-18 11:50:17,473 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:18,049 INFO L134 CoverageAnalysis]: Checked inductivity of 885 backedges. 452 proven. 112 refuted. 0 times theorem prover too weak. 321 trivial. 0 not checked. [2018-09-18 11:50:18,051 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:50:18,051 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5, 5, 5] total 8 [2018-09-18 11:50:18,051 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:50:18,052 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-18 11:50:18,052 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-18 11:50:18,053 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2018-09-18 11:50:18,053 INFO L87 Difference]: Start difference. First operand 11707 states and 14532 transitions. Second operand 7 states. [2018-09-18 11:50:21,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:50:21,044 INFO L93 Difference]: Finished difference Result 25357 states and 31889 transitions. [2018-09-18 11:50:21,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-18 11:50:21,046 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 539 [2018-09-18 11:50:21,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:50:21,090 INFO L225 Difference]: With dead ends: 25357 [2018-09-18 11:50:21,091 INFO L226 Difference]: Without dead ends: 13656 [2018-09-18 11:50:21,129 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2175 GetRequests, 2153 SyntacticMatches, 11 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2018-09-18 11:50:21,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13656 states. [2018-09-18 11:50:21,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13656 to 13191. [2018-09-18 11:50:21,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13191 states. [2018-09-18 11:50:21,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13191 states to 13191 states and 15447 transitions. [2018-09-18 11:50:21,372 INFO L78 Accepts]: Start accepts. Automaton has 13191 states and 15447 transitions. Word has length 539 [2018-09-18 11:50:21,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:50:21,373 INFO L480 AbstractCegarLoop]: Abstraction has 13191 states and 15447 transitions. [2018-09-18 11:50:21,373 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-18 11:50:21,373 INFO L276 IsEmpty]: Start isEmpty. Operand 13191 states and 15447 transitions. [2018-09-18 11:50:21,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2018-09-18 11:50:21,407 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:21,407 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:50:21,408 INFO L423 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:21,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1652225032, now seen corresponding path program 1 times [2018-09-18 11:50:21,408 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:21,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:21,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:21,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:21,409 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:21,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:21,957 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-18 11:50:22,159 WARN L178 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-18 11:50:22,398 WARN L178 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-09-18 11:50:22,892 WARN L178 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2018-09-18 11:50:23,892 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 606 proven. 482 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2018-09-18 11:50:23,892 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:23,893 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:50:23,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:23,901 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:24,060 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:24,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 948 proven. 2 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-09-18 11:50:24,723 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:25,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 600 proven. 112 refuted. 0 times theorem prover too weak. 568 trivial. 0 not checked. [2018-09-18 11:50:25,409 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:25,409 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:50:25,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:25,426 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:25,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:25,803 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:26,412 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 740 proven. 210 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-09-18 11:50:26,412 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:27,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 311 proven. 690 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2018-09-18 11:50:27,322 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:50:27,323 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5, 8, 8] total 16 [2018-09-18 11:50:27,323 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:50:27,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-09-18 11:50:27,324 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-09-18 11:50:27,324 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2018-09-18 11:50:27,325 INFO L87 Difference]: Start difference. First operand 13191 states and 15447 transitions. Second operand 13 states. [2018-09-18 11:50:29,035 WARN L178 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 27 [2018-09-18 11:50:33,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:50:33,044 INFO L93 Difference]: Finished difference Result 27022 states and 32330 transitions. [2018-09-18 11:50:33,044 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-09-18 11:50:33,044 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 624 [2018-09-18 11:50:33,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:50:33,102 INFO L225 Difference]: With dead ends: 27022 [2018-09-18 11:50:33,103 INFO L226 Difference]: Without dead ends: 13435 [2018-09-18 11:50:33,141 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2524 GetRequests, 2486 SyntacticMatches, 15 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=171, Invalid=429, Unknown=0, NotChecked=0, Total=600 [2018-09-18 11:50:33,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13435 states. [2018-09-18 11:50:33,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13435 to 12714. [2018-09-18 11:50:33,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12714 states. [2018-09-18 11:50:33,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12714 states to 12714 states and 14443 transitions. [2018-09-18 11:50:33,495 INFO L78 Accepts]: Start accepts. Automaton has 12714 states and 14443 transitions. Word has length 624 [2018-09-18 11:50:33,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:50:33,496 INFO L480 AbstractCegarLoop]: Abstraction has 12714 states and 14443 transitions. [2018-09-18 11:50:33,496 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-09-18 11:50:33,496 INFO L276 IsEmpty]: Start isEmpty. Operand 12714 states and 14443 transitions. [2018-09-18 11:50:33,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2018-09-18 11:50:33,524 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:33,524 INFO L376 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:50:33,525 INFO L423 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:33,525 INFO L82 PathProgramCache]: Analyzing trace with hash 303544884, now seen corresponding path program 2 times [2018-09-18 11:50:33,525 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:33,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:33,526 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:33,526 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:33,526 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:33,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:34,227 WARN L178 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-18 11:50:34,424 WARN L178 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-09-18 11:50:35,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 632 proven. 534 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2018-09-18 11:50:35,634 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:35,634 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:50:35,641 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-18 11:50:35,641 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-18 11:50:35,799 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-18 11:50:35,799 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 11:50:35,807 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:36,079 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 1000 proven. 2 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2018-09-18 11:50:36,079 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:37,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 626 proven. 112 refuted. 0 times theorem prover too weak. 645 trivial. 0 not checked. [2018-09-18 11:50:37,169 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:37,169 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:50:37,186 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-09-18 11:50:37,187 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST1 (IT: FPandBP) [2018-09-18 11:50:37,550 INFO L242 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-09-18 11:50:37,550 INFO L243 tOrderPrioritization]: Conjunction of SSA is unsat [2018-09-18 11:50:37,568 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:38,265 WARN L178 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 31 [2018-09-18 11:50:38,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 985 proven. 17 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2018-09-18 11:50:38,866 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:39,256 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 25 [2018-09-18 11:50:39,571 WARN L178 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2018-09-18 11:50:41,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 305 proven. 748 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2018-09-18 11:50:41,280 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:50:41,281 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 5, 5, 10, 11] total 31 [2018-09-18 11:50:41,281 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:50:41,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-09-18 11:50:41,282 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-09-18 11:50:41,283 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=782, Unknown=0, NotChecked=0, Total=930 [2018-09-18 11:50:41,283 INFO L87 Difference]: Start difference. First operand 12714 states and 14443 transitions. Second operand 18 states. [2018-09-18 11:50:44,445 WARN L178 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 40 [2018-09-18 11:50:45,319 WARN L178 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2018-09-18 11:50:49,121 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 46 [2018-09-18 11:50:49,576 WARN L178 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2018-09-18 11:50:49,839 WARN L178 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2018-09-18 11:50:50,899 WARN L178 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2018-09-18 11:50:51,736 WARN L178 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2018-09-18 11:50:52,095 WARN L178 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 34 [2018-09-18 11:50:52,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:50:52,661 INFO L93 Difference]: Finished difference Result 29448 states and 34326 transitions. [2018-09-18 11:50:52,669 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2018-09-18 11:50:52,670 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 650 [2018-09-18 11:50:52,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:50:52,708 INFO L225 Difference]: With dead ends: 29448 [2018-09-18 11:50:52,709 INFO L226 Difference]: Without dead ends: 16740 [2018-09-18 11:50:52,757 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2677 GetRequests, 2598 SyntacticMatches, 14 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1188 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=813, Invalid=3609, Unknown=0, NotChecked=0, Total=4422 [2018-09-18 11:50:52,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16740 states. [2018-09-18 11:50:52,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16740 to 16116. [2018-09-18 11:50:52,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16116 states. [2018-09-18 11:50:53,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16116 states to 16116 states and 17925 transitions. [2018-09-18 11:50:53,010 INFO L78 Accepts]: Start accepts. Automaton has 16116 states and 17925 transitions. Word has length 650 [2018-09-18 11:50:53,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:50:53,011 INFO L480 AbstractCegarLoop]: Abstraction has 16116 states and 17925 transitions. [2018-09-18 11:50:53,011 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-09-18 11:50:53,012 INFO L276 IsEmpty]: Start isEmpty. Operand 16116 states and 17925 transitions. [2018-09-18 11:50:53,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 814 [2018-09-18 11:50:53,042 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:50:53,043 INFO L376 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:50:53,043 INFO L423 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:50:53,044 INFO L82 PathProgramCache]: Analyzing trace with hash 381674115, now seen corresponding path program 1 times [2018-09-18 11:50:53,044 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:50:53,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:53,045 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2018-09-18 11:50:53,045 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:50:53,045 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:50:53,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:54,852 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 922 proven. 835 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2018-09-18 11:50:54,852 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:54,853 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:50:54,865 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:54,866 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:55,064 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:55,716 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 1437 proven. 2 refuted. 0 times theorem prover too weak. 917 trivial. 0 not checked. [2018-09-18 11:50:55,717 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:55,913 WARN L178 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 36 [2018-09-18 11:50:56,903 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 910 proven. 112 refuted. 0 times theorem prover too weak. 1334 trivial. 0 not checked. [2018-09-18 11:50:56,925 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:50:56,925 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 16 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:50:56,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:50:56,941 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:50:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:50:57,400 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:50:57,889 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 1429 proven. 10 refuted. 0 times theorem prover too weak. 917 trivial. 0 not checked. [2018-09-18 11:50:57,889 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:50:59,464 INFO L134 CoverageAnalysis]: Checked inductivity of 2356 backedges. 415 proven. 1075 refuted. 0 times theorem prover too weak. 866 trivial. 0 not checked. [2018-09-18 11:50:59,466 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:50:59,467 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5, 8, 8] total 28 [2018-09-18 11:50:59,467 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:50:59,469 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-09-18 11:50:59,469 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-09-18 11:50:59,469 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=623, Unknown=0, NotChecked=0, Total=756 [2018-09-18 11:50:59,470 INFO L87 Difference]: Start difference. First operand 16116 states and 17925 transitions. Second operand 17 states. [2018-09-18 11:51:07,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:51:07,688 INFO L93 Difference]: Finished difference Result 31443 states and 36020 transitions. [2018-09-18 11:51:07,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2018-09-18 11:51:07,688 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 813 [2018-09-18 11:51:07,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:51:07,738 INFO L225 Difference]: With dead ends: 31443 [2018-09-18 11:51:07,739 INFO L226 Difference]: Without dead ends: 14799 [2018-09-18 11:51:07,781 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3335 GetRequests, 3257 SyntacticMatches, 8 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1422 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1093, Invalid=4019, Unknown=0, NotChecked=0, Total=5112 [2018-09-18 11:51:07,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14799 states. [2018-09-18 11:51:08,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14799 to 14465. [2018-09-18 11:51:08,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14465 states. [2018-09-18 11:51:08,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14465 states to 14465 states and 15877 transitions. [2018-09-18 11:51:08,036 INFO L78 Accepts]: Start accepts. Automaton has 14465 states and 15877 transitions. Word has length 813 [2018-09-18 11:51:08,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:51:08,037 INFO L480 AbstractCegarLoop]: Abstraction has 14465 states and 15877 transitions. [2018-09-18 11:51:08,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-09-18 11:51:08,038 INFO L276 IsEmpty]: Start isEmpty. Operand 14465 states and 15877 transitions. [2018-09-18 11:51:08,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 885 [2018-09-18 11:51:08,059 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:51:08,059 INFO L376 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:51:08,060 INFO L423 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:51:08,060 INFO L82 PathProgramCache]: Analyzing trace with hash -430718764, now seen corresponding path program 1 times [2018-09-18 11:51:08,060 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:51:08,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:08,061 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:08,061 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:08,061 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:51:08,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:09,107 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 9 [2018-09-18 11:51:09,317 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2018-09-18 11:51:09,588 WARN L178 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-09-18 11:51:10,035 WARN L178 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2018-09-18 11:51:10,405 WARN L178 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-09-18 11:51:12,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2124 backedges. 899 proven. 891 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2018-09-18 11:51:12,597 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:12,597 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:51:12,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:12,607 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:12,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:12,821 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:13,267 INFO L134 CoverageAnalysis]: Checked inductivity of 2124 backedges. 1405 proven. 2 refuted. 0 times theorem prover too weak. 717 trivial. 0 not checked. [2018-09-18 11:51:13,267 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:51:13,810 INFO L134 CoverageAnalysis]: Checked inductivity of 2124 backedges. 856 proven. 142 refuted. 0 times theorem prover too weak. 1126 trivial. 0 not checked. [2018-09-18 11:51:13,831 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:13,832 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 18 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:51:13,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:13,849 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:14,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:14,312 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:14,683 INFO L134 CoverageAnalysis]: Checked inductivity of 2124 backedges. 1405 proven. 2 refuted. 0 times theorem prover too weak. 717 trivial. 0 not checked. [2018-09-18 11:51:14,683 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:51:15,161 INFO L134 CoverageAnalysis]: Checked inductivity of 2124 backedges. 856 proven. 142 refuted. 0 times theorem prover too weak. 1126 trivial. 0 not checked. [2018-09-18 11:51:15,164 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:51:15,165 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 5, 5, 5, 5] total 22 [2018-09-18 11:51:15,165 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:51:15,166 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2018-09-18 11:51:15,167 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2018-09-18 11:51:15,167 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2018-09-18 11:51:15,167 INFO L87 Difference]: Start difference. First operand 14465 states and 15877 transitions. Second operand 20 states. [2018-09-18 11:51:31,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:51:31,508 INFO L93 Difference]: Finished difference Result 31884 states and 35466 transitions. [2018-09-18 11:51:31,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2018-09-18 11:51:31,509 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 884 [2018-09-18 11:51:31,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:51:31,559 INFO L225 Difference]: With dead ends: 31884 [2018-09-18 11:51:31,559 INFO L226 Difference]: Without dead ends: 17282 [2018-09-18 11:51:31,597 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3707 GetRequests, 3599 SyntacticMatches, 6 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3626 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=1535, Invalid=9177, Unknown=0, NotChecked=0, Total=10712 [2018-09-18 11:51:31,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17282 states. [2018-09-18 11:51:31,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17282 to 16962. [2018-09-18 11:51:31,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16962 states. [2018-09-18 11:51:31,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16962 states to 16962 states and 18567 transitions. [2018-09-18 11:51:31,871 INFO L78 Accepts]: Start accepts. Automaton has 16962 states and 18567 transitions. Word has length 884 [2018-09-18 11:51:31,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:51:31,872 INFO L480 AbstractCegarLoop]: Abstraction has 16962 states and 18567 transitions. [2018-09-18 11:51:31,872 INFO L481 AbstractCegarLoop]: Interpolant automaton has 20 states. [2018-09-18 11:51:31,873 INFO L276 IsEmpty]: Start isEmpty. Operand 16962 states and 18567 transitions. [2018-09-18 11:51:31,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2018-09-18 11:51:31,905 INFO L368 BasicCegarLoop]: Found error trace [2018-09-18 11:51:31,906 INFO L376 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-18 11:51:31,907 INFO L423 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-09-18 11:51:31,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1973163027, now seen corresponding path program 1 times [2018-09-18 11:51:31,907 INFO L69 tionRefinementEngine]: Using refinement strategy RubberTaipanRefinementStrategy [2018-09-18 11:51:31,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:31,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:31,908 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-09-18 11:51:31,908 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-09-18 11:51:32,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:34,990 INFO L134 CoverageAnalysis]: Checked inductivity of 3975 backedges. 1806 proven. 722 refuted. 0 times theorem prover too weak. 1447 trivial. 0 not checked. [2018-09-18 11:51:34,991 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:34,991 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-09-18 11:51:34,999 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:34,999 INFO L295 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:35,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:35,262 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:36,052 INFO L134 CoverageAnalysis]: Checked inductivity of 3975 backedges. 1378 proven. 2 refuted. 0 times theorem prover too weak. 2595 trivial. 0 not checked. [2018-09-18 11:51:36,052 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:51:37,001 INFO L134 CoverageAnalysis]: Checked inductivity of 3975 backedges. 1378 proven. 2 refuted. 0 times theorem prover too weak. 2595 trivial. 0 not checked. [2018-09-18 11:51:37,022 INFO L301 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-09-18 11:51:37,022 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode CVC4_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4nyu Starting monitored process 20 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with cvc4nyu --tear-down-incremental --print-success --lang smt --rewrite-divk --tlimit-per=12000 [2018-09-18 11:51:37,042 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-09-18 11:51:37,042 INFO L295 anRefinementStrategy]: Using traceCheck mode CVC4_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-09-18 11:51:37,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-18 11:51:37,674 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-09-18 11:51:37,896 WARN L178 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 18 [2018-09-18 11:51:38,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3975 backedges. 2472 proven. 6 refuted. 0 times theorem prover too weak. 1497 trivial. 0 not checked. [2018-09-18 11:51:38,891 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-09-18 11:51:40,118 INFO L134 CoverageAnalysis]: Checked inductivity of 3975 backedges. 1699 proven. 294 refuted. 0 times theorem prover too weak. 1982 trivial. 0 not checked. [2018-09-18 11:51:40,121 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 5 imperfect interpolant sequences. [2018-09-18 11:51:40,122 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 6, 6, 7, 8] total 31 [2018-09-18 11:51:40,123 INFO L258 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-09-18 11:51:40,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-09-18 11:51:40,124 INFO L147 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-09-18 11:51:40,125 INFO L148 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=808, Unknown=0, NotChecked=0, Total=930 [2018-09-18 11:51:40,125 INFO L87 Difference]: Start difference. First operand 16962 states and 18567 transitions. Second operand 19 states. [2018-09-18 11:51:48,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-18 11:51:48,147 INFO L93 Difference]: Finished difference Result 34416 states and 38552 transitions. [2018-09-18 11:51:48,148 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2018-09-18 11:51:48,148 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 1141 [2018-09-18 11:51:48,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-18 11:51:48,150 INFO L225 Difference]: With dead ends: 34416 [2018-09-18 11:51:48,150 INFO L226 Difference]: Without dead ends: 0 [2018-09-18 11:51:48,216 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4640 GetRequests, 4578 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 992 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=705, Invalid=3201, Unknown=0, NotChecked=0, Total=3906 [2018-09-18 11:51:48,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-18 11:51:48,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-18 11:51:48,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-18 11:51:48,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-18 11:51:48,217 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1141 [2018-09-18 11:51:48,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-18 11:51:48,218 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-18 11:51:48,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-09-18 11:51:48,218 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-18 11:51:48,218 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-18 11:51:48,222 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-18 11:51:48,317 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:48,543 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:48,568 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:48,655 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:48,664 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:48,666 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:48,679 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:48,712 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:48,733 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:48,836 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:48,983 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:49,230 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:49,360 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:49,436 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:49,592 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:49,842 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:49,899 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:50,170 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:50,310 WARN L178 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 575 DAG size of output: 479 [2018-09-18 11:51:50,330 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:50,341 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:50,344 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:50,357 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:50,391 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:50,413 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:50,509 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:50,653 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:50,892 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:51,020 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:51,096 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:51,248 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:51,490 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:51,543 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:51,814 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-09-18 11:51:51,943 WARN L178 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 575 DAG size of output: 479 [2018-09-18 11:51:52,339 WARN L178 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 16 [2018-09-18 11:51:53,280 WARN L178 SmtUtils]: Spent 938.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 29 [2018-09-18 11:51:54,319 WARN L178 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 266 DAG size of output: 55 [2018-09-18 11:51:57,499 WARN L178 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 457 DAG size of output: 49 [2018-09-18 11:52:00,512 WARN L178 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 457 DAG size of output: 49 [2018-09-18 11:52:00,516 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-09-18 11:52:00,516 INFO L422 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a15~0 |old(~a15~0)|)) [2018-09-18 11:52:00,516 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-09-18 11:52:00,516 INFO L426 ceAbstractionStarter]: For program point L432(lines 432 870) no Hoare annotation was computed. [2018-09-18 11:52:00,516 INFO L426 ceAbstractionStarter]: For program point L366(lines 366 870) no Hoare annotation was computed. [2018-09-18 11:52:00,516 INFO L426 ceAbstractionStarter]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,516 INFO L426 ceAbstractionStarter]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,517 INFO L426 ceAbstractionStarter]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,517 INFO L426 ceAbstractionStarter]: For program point L235(lines 235 870) no Hoare annotation was computed. [2018-09-18 11:52:00,517 INFO L426 ceAbstractionStarter]: For program point L169(line 169) no Hoare annotation was computed. [2018-09-18 11:52:00,517 INFO L426 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-09-18 11:52:00,517 INFO L426 ceAbstractionStarter]: For program point L37(line 37) no Hoare annotation was computed. [2018-09-18 11:52:00,517 INFO L426 ceAbstractionStarter]: For program point L764(lines 764 870) no Hoare annotation was computed. [2018-09-18 11:52:00,517 INFO L426 ceAbstractionStarter]: For program point L632(lines 632 870) no Hoare annotation was computed. [2018-09-18 11:52:00,517 INFO L426 ceAbstractionStarter]: For program point L500(lines 500 870) no Hoare annotation was computed. [2018-09-18 11:52:00,517 INFO L426 ceAbstractionStarter]: For program point L831(lines 831 870) no Hoare annotation was computed. [2018-09-18 11:52:00,517 INFO L426 ceAbstractionStarter]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,517 INFO L426 ceAbstractionStarter]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,517 INFO L426 ceAbstractionStarter]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,517 INFO L426 ceAbstractionStarter]: For program point L700(lines 700 870) no Hoare annotation was computed. [2018-09-18 11:52:00,518 INFO L426 ceAbstractionStarter]: For program point L568(lines 568 870) no Hoare annotation was computed. [2018-09-18 11:52:00,518 INFO L426 ceAbstractionStarter]: For program point L172(line 172) no Hoare annotation was computed. [2018-09-18 11:52:00,518 INFO L426 ceAbstractionStarter]: For program point L106(line 106) no Hoare annotation was computed. [2018-09-18 11:52:00,518 INFO L426 ceAbstractionStarter]: For program point L40(line 40) no Hoare annotation was computed. [2018-09-18 11:52:00,518 INFO L426 ceAbstractionStarter]: For program point L305(lines 305 870) no Hoare annotation was computed. [2018-09-18 11:52:00,518 INFO L426 ceAbstractionStarter]: For program point L438(lines 438 870) no Hoare annotation was computed. [2018-09-18 11:52:00,518 INFO L426 ceAbstractionStarter]: For program point L372(lines 372 870) no Hoare annotation was computed. [2018-09-18 11:52:00,518 INFO L426 ceAbstractionStarter]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,518 INFO L426 ceAbstractionStarter]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,518 INFO L426 ceAbstractionStarter]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,518 INFO L426 ceAbstractionStarter]: For program point L241(lines 241 870) no Hoare annotation was computed. [2018-09-18 11:52:00,518 INFO L426 ceAbstractionStarter]: For program point L175(line 175) no Hoare annotation was computed. [2018-09-18 11:52:00,518 INFO L426 ceAbstractionStarter]: For program point L109(line 109) no Hoare annotation was computed. [2018-09-18 11:52:00,518 INFO L426 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-09-18 11:52:00,519 INFO L426 ceAbstractionStarter]: For program point L638(lines 638 870) no Hoare annotation was computed. [2018-09-18 11:52:00,519 INFO L426 ceAbstractionStarter]: For program point L506(lines 506 870) no Hoare annotation was computed. [2018-09-18 11:52:00,519 INFO L426 ceAbstractionStarter]: For program point L837(lines 837 870) no Hoare annotation was computed. [2018-09-18 11:52:00,519 INFO L426 ceAbstractionStarter]: For program point L771(lines 771 870) no Hoare annotation was computed. [2018-09-18 11:52:00,519 INFO L426 ceAbstractionStarter]: For program point L573(lines 573 870) no Hoare annotation was computed. [2018-09-18 11:52:00,519 INFO L426 ceAbstractionStarter]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,519 INFO L426 ceAbstractionStarter]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,519 INFO L426 ceAbstractionStarter]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,519 INFO L426 ceAbstractionStarter]: For program point L706(lines 706 870) no Hoare annotation was computed. [2018-09-18 11:52:00,519 INFO L426 ceAbstractionStarter]: For program point L178(line 178) no Hoare annotation was computed. [2018-09-18 11:52:00,520 INFO L426 ceAbstractionStarter]: For program point L112(line 112) no Hoare annotation was computed. [2018-09-18 11:52:00,520 INFO L426 ceAbstractionStarter]: For program point L46(line 46) no Hoare annotation was computed. [2018-09-18 11:52:00,520 INFO L426 ceAbstractionStarter]: For program point L311(lines 311 870) no Hoare annotation was computed. [2018-09-18 11:52:00,520 INFO L426 ceAbstractionStarter]: For program point L444(lines 444 870) no Hoare annotation was computed. [2018-09-18 11:52:00,520 INFO L426 ceAbstractionStarter]: For program point L378(lines 378 870) no Hoare annotation was computed. [2018-09-18 11:52:00,520 INFO L426 ceAbstractionStarter]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,520 INFO L426 ceAbstractionStarter]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,520 INFO L426 ceAbstractionStarter]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,520 INFO L426 ceAbstractionStarter]: For program point L247(lines 247 870) no Hoare annotation was computed. [2018-09-18 11:52:00,521 INFO L426 ceAbstractionStarter]: For program point L181(line 181) no Hoare annotation was computed. [2018-09-18 11:52:00,521 INFO L426 ceAbstractionStarter]: For program point L115(line 115) no Hoare annotation was computed. [2018-09-18 11:52:00,521 INFO L426 ceAbstractionStarter]: For program point L49(line 49) no Hoare annotation was computed. [2018-09-18 11:52:00,521 INFO L426 ceAbstractionStarter]: For program point L842(lines 842 870) no Hoare annotation was computed. [2018-09-18 11:52:00,521 INFO L426 ceAbstractionStarter]: For program point L644(lines 644 870) no Hoare annotation was computed. [2018-09-18 11:52:00,521 INFO L426 ceAbstractionStarter]: For program point L512(lines 512 870) no Hoare annotation was computed. [2018-09-18 11:52:00,521 INFO L426 ceAbstractionStarter]: For program point L777(lines 777 870) no Hoare annotation was computed. [2018-09-18 11:52:00,521 INFO L426 ceAbstractionStarter]: For program point L579(lines 579 870) no Hoare annotation was computed. [2018-09-18 11:52:00,521 INFO L426 ceAbstractionStarter]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,521 INFO L426 ceAbstractionStarter]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,522 INFO L426 ceAbstractionStarter]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,522 INFO L426 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,522 INFO L426 ceAbstractionStarter]: For program point L712(lines 712 870) no Hoare annotation was computed. [2018-09-18 11:52:00,522 INFO L426 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-09-18 11:52:00,522 INFO L426 ceAbstractionStarter]: For program point L118(line 118) no Hoare annotation was computed. [2018-09-18 11:52:00,522 INFO L426 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2018-09-18 11:52:00,522 INFO L426 ceAbstractionStarter]: For program point L449(lines 449 870) no Hoare annotation was computed. [2018-09-18 11:52:00,522 INFO L426 ceAbstractionStarter]: For program point L317(lines 317 870) no Hoare annotation was computed. [2018-09-18 11:52:00,522 INFO L426 ceAbstractionStarter]: For program point L384(lines 384 870) no Hoare annotation was computed. [2018-09-18 11:52:00,522 INFO L426 ceAbstractionStarter]: For program point L252(lines 252 870) no Hoare annotation was computed. [2018-09-18 11:52:00,523 INFO L426 ceAbstractionStarter]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,523 INFO L426 ceAbstractionStarter]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,523 INFO L426 ceAbstractionStarter]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,523 INFO L426 ceAbstractionStarter]: For program point L187(line 187) no Hoare annotation was computed. [2018-09-18 11:52:00,523 INFO L426 ceAbstractionStarter]: For program point L121(line 121) no Hoare annotation was computed. [2018-09-18 11:52:00,523 INFO L426 ceAbstractionStarter]: For program point L55(line 55) no Hoare annotation was computed. [2018-09-18 11:52:00,523 INFO L426 ceAbstractionStarter]: For program point L848(lines 848 870) no Hoare annotation was computed. [2018-09-18 11:52:00,523 INFO L426 ceAbstractionStarter]: For program point L650(lines 650 870) no Hoare annotation was computed. [2018-09-18 11:52:00,523 INFO L426 ceAbstractionStarter]: For program point L518(lines 518 870) no Hoare annotation was computed. [2018-09-18 11:52:00,523 INFO L426 ceAbstractionStarter]: For program point L783(lines 783 870) no Hoare annotation was computed. [2018-09-18 11:52:00,524 INFO L426 ceAbstractionStarter]: For program point L585(lines 585 870) no Hoare annotation was computed. [2018-09-18 11:52:00,524 INFO L426 ceAbstractionStarter]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,524 INFO L426 ceAbstractionStarter]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,524 INFO L426 ceAbstractionStarter]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,524 INFO L426 ceAbstractionStarter]: For program point L718(lines 718 870) no Hoare annotation was computed. [2018-09-18 11:52:00,524 INFO L426 ceAbstractionStarter]: For program point L454(lines 454 870) no Hoare annotation was computed. [2018-09-18 11:52:00,524 INFO L426 ceAbstractionStarter]: For program point L190(line 190) no Hoare annotation was computed. [2018-09-18 11:52:00,524 INFO L426 ceAbstractionStarter]: For program point L124(line 124) no Hoare annotation was computed. [2018-09-18 11:52:00,524 INFO L426 ceAbstractionStarter]: For program point L58(line 58) no Hoare annotation was computed. [2018-09-18 11:52:00,524 INFO L426 ceAbstractionStarter]: For program point L323(lines 323 870) no Hoare annotation was computed. [2018-09-18 11:52:00,525 INFO L422 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse8 (<= |old(~a21~0)| ~a21~0)) (.cse10 (= 1 ~a24~0)) (.cse9 (<= ~a21~0 |old(~a21~0)|)) (.cse5 (= ~a12~0 |old(~a12~0)|)) (.cse6 (= ~a24~0 |old(~a24~0)|)) (.cse7 (= ~a15~0 |old(~a15~0)|))) (let ((.cse0 (and .cse5 .cse6 (= ~a21~0 |old(~a21~0)|) .cse7)) (.cse4 (= 6 |old(~a15~0)|)) (.cse2 (and .cse5 .cse7 .cse8 .cse10 .cse9)) (.cse1 (not (= 1 |old(~a24~0)|))) (.cse3 (< 8 |old(~a15~0)|))) (and (or .cse0 (not (= 9 |old(~a15~0)|)) .cse1) (or .cse2 (< 8 |old(~a21~0)|) .cse1 .cse3) (or .cse0 .cse1 .cse4 .cse3) (or (< 0 (+ |old(~a12~0)| 49)) .cse4 (< 6 |old(~a21~0)|) (and .cse5 .cse6 .cse7 .cse8 .cse9) .cse3) (or .cse2 .cse1 (< 11 |old(~a12~0)|) .cse3) (or (and .cse5 .cse8 (= |old(~a15~0)| ~a15~0) .cse10 .cse9) (not (= 9 |old(~a21~0)|)) (< |old(~a12~0)| 81) .cse1 .cse3)))) [2018-09-18 11:52:00,525 INFO L426 ceAbstractionStarter]: For program point L390(lines 390 870) no Hoare annotation was computed. [2018-09-18 11:52:00,525 INFO L426 ceAbstractionStarter]: For program point L258(lines 258 870) no Hoare annotation was computed. [2018-09-18 11:52:00,525 INFO L426 ceAbstractionStarter]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,525 INFO L426 ceAbstractionStarter]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,525 INFO L426 ceAbstractionStarter]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,525 INFO L426 ceAbstractionStarter]: For program point L193(line 193) no Hoare annotation was computed. [2018-09-18 11:52:00,525 INFO L426 ceAbstractionStarter]: For program point L127(line 127) no Hoare annotation was computed. [2018-09-18 11:52:00,526 INFO L426 ceAbstractionStarter]: For program point L61(line 61) no Hoare annotation was computed. [2018-09-18 11:52:00,526 INFO L426 ceAbstractionStarter]: For program point L854(lines 854 870) no Hoare annotation was computed. [2018-09-18 11:52:00,526 INFO L426 ceAbstractionStarter]: For program point L656(lines 656 870) no Hoare annotation was computed. [2018-09-18 11:52:00,526 INFO L426 ceAbstractionStarter]: For program point L524(lines 524 870) no Hoare annotation was computed. [2018-09-18 11:52:00,526 INFO L426 ceAbstractionStarter]: For program point L789(lines 789 870) no Hoare annotation was computed. [2018-09-18 11:52:00,526 INFO L426 ceAbstractionStarter]: For program point L591(lines 591 870) no Hoare annotation was computed. [2018-09-18 11:52:00,526 INFO L426 ceAbstractionStarter]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,526 INFO L426 ceAbstractionStarter]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,526 INFO L426 ceAbstractionStarter]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,526 INFO L426 ceAbstractionStarter]: For program point L724(lines 724 870) no Hoare annotation was computed. [2018-09-18 11:52:00,527 INFO L426 ceAbstractionStarter]: For program point L460(lines 460 870) no Hoare annotation was computed. [2018-09-18 11:52:00,527 INFO L426 ceAbstractionStarter]: For program point L196(line 196) no Hoare annotation was computed. [2018-09-18 11:52:00,527 INFO L426 ceAbstractionStarter]: For program point L130(line 130) no Hoare annotation was computed. [2018-09-18 11:52:00,527 INFO L426 ceAbstractionStarter]: For program point L64(line 64) no Hoare annotation was computed. [2018-09-18 11:52:00,527 INFO L426 ceAbstractionStarter]: For program point L329(lines 329 870) no Hoare annotation was computed. [2018-09-18 11:52:00,527 INFO L426 ceAbstractionStarter]: For program point L396(lines 396 870) no Hoare annotation was computed. [2018-09-18 11:52:00,527 INFO L426 ceAbstractionStarter]: For program point L264(lines 264 870) no Hoare annotation was computed. [2018-09-18 11:52:00,527 INFO L426 ceAbstractionStarter]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,527 INFO L426 ceAbstractionStarter]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,528 INFO L426 ceAbstractionStarter]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,528 INFO L426 ceAbstractionStarter]: For program point L859(lines 859 870) no Hoare annotation was computed. [2018-09-18 11:52:00,528 INFO L426 ceAbstractionStarter]: For program point L199(line 199) no Hoare annotation was computed. [2018-09-18 11:52:00,528 INFO L426 ceAbstractionStarter]: For program point L133(line 133) no Hoare annotation was computed. [2018-09-18 11:52:00,528 INFO L426 ceAbstractionStarter]: For program point L67(line 67) no Hoare annotation was computed. [2018-09-18 11:52:00,528 INFO L426 ceAbstractionStarter]: For program point L662(lines 662 870) no Hoare annotation was computed. [2018-09-18 11:52:00,528 INFO L426 ceAbstractionStarter]: For program point L530(lines 530 870) no Hoare annotation was computed. [2018-09-18 11:52:00,528 INFO L426 ceAbstractionStarter]: For program point L795(lines 795 870) no Hoare annotation was computed. [2018-09-18 11:52:00,528 INFO L426 ceAbstractionStarter]: For program point L597(lines 597 870) no Hoare annotation was computed. [2018-09-18 11:52:00,528 INFO L426 ceAbstractionStarter]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,529 INFO L426 ceAbstractionStarter]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,529 INFO L426 ceAbstractionStarter]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,529 INFO L426 ceAbstractionStarter]: For program point L730(lines 730 870) no Hoare annotation was computed. [2018-09-18 11:52:00,529 INFO L426 ceAbstractionStarter]: For program point L202(line 202) no Hoare annotation was computed. [2018-09-18 11:52:00,529 INFO L426 ceAbstractionStarter]: For program point L136(line 136) no Hoare annotation was computed. [2018-09-18 11:52:00,529 INFO L426 ceAbstractionStarter]: For program point L70(line 70) no Hoare annotation was computed. [2018-09-18 11:52:00,529 INFO L426 ceAbstractionStarter]: For program point L467(lines 467 870) no Hoare annotation was computed. [2018-09-18 11:52:00,529 INFO L426 ceAbstractionStarter]: For program point L335(lines 335 870) no Hoare annotation was computed. [2018-09-18 11:52:00,529 INFO L426 ceAbstractionStarter]: For program point L269(lines 269 870) no Hoare annotation was computed. [2018-09-18 11:52:00,530 INFO L426 ceAbstractionStarter]: For program point L402(lines 402 870) no Hoare annotation was computed. [2018-09-18 11:52:00,530 INFO L426 ceAbstractionStarter]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,530 INFO L426 ceAbstractionStarter]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,530 INFO L426 ceAbstractionStarter]: For program point L865(lines 865 870) no Hoare annotation was computed. [2018-09-18 11:52:00,530 INFO L426 ceAbstractionStarter]: For program point L139(line 139) no Hoare annotation was computed. [2018-09-18 11:52:00,530 INFO L426 ceAbstractionStarter]: For program point L73(line 73) no Hoare annotation was computed. [2018-09-18 11:52:00,530 INFO L426 ceAbstractionStarter]: For program point L668(lines 668 870) no Hoare annotation was computed. [2018-09-18 11:52:00,530 INFO L426 ceAbstractionStarter]: For program point L536(lines 536 870) no Hoare annotation was computed. [2018-09-18 11:52:00,530 INFO L426 ceAbstractionStarter]: For program point L801(lines 801 870) no Hoare annotation was computed. [2018-09-18 11:52:00,531 INFO L426 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 169) no Hoare annotation was computed. [2018-09-18 11:52:00,531 INFO L426 ceAbstractionStarter]: For program point L735(lines 735 870) no Hoare annotation was computed. [2018-09-18 11:52:00,531 INFO L426 ceAbstractionStarter]: For program point L603(lines 603 870) no Hoare annotation was computed. [2018-09-18 11:52:00,531 INFO L426 ceAbstractionStarter]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,531 INFO L426 ceAbstractionStarter]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,531 INFO L426 ceAbstractionStarter]: For program point L472(lines 472 870) no Hoare annotation was computed. [2018-09-18 11:52:00,531 INFO L426 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-09-18 11:52:00,531 INFO L426 ceAbstractionStarter]: For program point L76(line 76) no Hoare annotation was computed. [2018-09-18 11:52:00,532 INFO L426 ceAbstractionStarter]: For program point L341(lines 341 870) no Hoare annotation was computed. [2018-09-18 11:52:00,532 INFO L426 ceAbstractionStarter]: For program point L275(lines 275 870) no Hoare annotation was computed. [2018-09-18 11:52:00,532 INFO L426 ceAbstractionStarter]: For program point L408(lines 408 870) no Hoare annotation was computed. [2018-09-18 11:52:00,532 INFO L426 ceAbstractionStarter]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,532 INFO L426 ceAbstractionStarter]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,532 INFO L426 ceAbstractionStarter]: For program point L541(lines 541 870) no Hoare annotation was computed. [2018-09-18 11:52:00,532 INFO L426 ceAbstractionStarter]: For program point L211(lines 211 870) no Hoare annotation was computed. [2018-09-18 11:52:00,532 INFO L426 ceAbstractionStarter]: For program point L145(line 145) no Hoare annotation was computed. [2018-09-18 11:52:00,532 INFO L426 ceAbstractionStarter]: For program point L79(line 79) no Hoare annotation was computed. [2018-09-18 11:52:00,533 INFO L426 ceAbstractionStarter]: For program point L674(lines 674 870) no Hoare annotation was computed. [2018-09-18 11:52:00,533 INFO L426 ceAbstractionStarter]: For program point L807(lines 807 870) no Hoare annotation was computed. [2018-09-18 11:52:00,533 INFO L426 ceAbstractionStarter]: For program point L741(lines 741 870) no Hoare annotation was computed. [2018-09-18 11:52:00,533 INFO L426 ceAbstractionStarter]: For program point L609(lines 609 870) no Hoare annotation was computed. [2018-09-18 11:52:00,533 INFO L426 ceAbstractionStarter]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,533 INFO L426 ceAbstractionStarter]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,533 INFO L426 ceAbstractionStarter]: For program point L478(lines 478 870) no Hoare annotation was computed. [2018-09-18 11:52:00,533 INFO L426 ceAbstractionStarter]: For program point L280(lines 280 870) no Hoare annotation was computed. [2018-09-18 11:52:00,533 INFO L426 ceAbstractionStarter]: For program point L148(line 148) no Hoare annotation was computed. [2018-09-18 11:52:00,533 INFO L426 ceAbstractionStarter]: For program point L82(line 82) no Hoare annotation was computed. [2018-09-18 11:52:00,534 INFO L426 ceAbstractionStarter]: For program point L677(lines 677 870) no Hoare annotation was computed. [2018-09-18 11:52:00,534 INFO L426 ceAbstractionStarter]: For program point L347(lines 347 870) no Hoare annotation was computed. [2018-09-18 11:52:00,534 INFO L426 ceAbstractionStarter]: For program point L414(lines 414 870) no Hoare annotation was computed. [2018-09-18 11:52:00,534 INFO L426 ceAbstractionStarter]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,534 INFO L426 ceAbstractionStarter]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,534 INFO L426 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,534 INFO L426 ceAbstractionStarter]: For program point L547(lines 547 870) no Hoare annotation was computed. [2018-09-18 11:52:00,534 INFO L426 ceAbstractionStarter]: For program point L217(lines 217 870) no Hoare annotation was computed. [2018-09-18 11:52:00,534 INFO L426 ceAbstractionStarter]: For program point L151(line 151) no Hoare annotation was computed. [2018-09-18 11:52:00,534 INFO L426 ceAbstractionStarter]: For program point L85(line 85) no Hoare annotation was computed. [2018-09-18 11:52:00,535 INFO L426 ceAbstractionStarter]: For program point L747(lines 747 870) no Hoare annotation was computed. [2018-09-18 11:52:00,535 INFO L426 ceAbstractionStarter]: For program point L615(lines 615 870) no Hoare annotation was computed. [2018-09-18 11:52:00,535 INFO L426 ceAbstractionStarter]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,535 INFO L426 ceAbstractionStarter]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,535 INFO L426 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-09-18 11:52:00,535 INFO L426 ceAbstractionStarter]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,535 INFO L426 ceAbstractionStarter]: For program point L814(lines 814 870) no Hoare annotation was computed. [2018-09-18 11:52:00,535 INFO L426 ceAbstractionStarter]: For program point L484(lines 484 870) no Hoare annotation was computed. [2018-09-18 11:52:00,535 INFO L426 ceAbstractionStarter]: For program point L286(lines 286 870) no Hoare annotation was computed. [2018-09-18 11:52:00,535 INFO L426 ceAbstractionStarter]: For program point L154(line 154) no Hoare annotation was computed. [2018-09-18 11:52:00,536 INFO L426 ceAbstractionStarter]: For program point L88(line 88) no Hoare annotation was computed. [2018-09-18 11:52:00,536 INFO L426 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-09-18 11:52:00,536 INFO L426 ceAbstractionStarter]: For program point L683(lines 683 870) no Hoare annotation was computed. [2018-09-18 11:52:00,536 INFO L426 ceAbstractionStarter]: For program point L353(lines 353 870) no Hoare annotation was computed. [2018-09-18 11:52:00,536 INFO L426 ceAbstractionStarter]: For program point L552(lines 552 870) no Hoare annotation was computed. [2018-09-18 11:52:00,536 INFO L426 ceAbstractionStarter]: For program point L420(lines 420 870) no Hoare annotation was computed. [2018-09-18 11:52:00,536 INFO L426 ceAbstractionStarter]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,536 INFO L426 ceAbstractionStarter]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,536 INFO L426 ceAbstractionStarter]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,536 INFO L426 ceAbstractionStarter]: For program point L223(lines 223 870) no Hoare annotation was computed. [2018-09-18 11:52:00,537 INFO L426 ceAbstractionStarter]: For program point L157(line 157) no Hoare annotation was computed. [2018-09-18 11:52:00,537 INFO L426 ceAbstractionStarter]: For program point L91(line 91) no Hoare annotation was computed. [2018-09-18 11:52:00,537 INFO L426 ceAbstractionStarter]: For program point L25(line 25) no Hoare annotation was computed. [2018-09-18 11:52:00,537 INFO L426 ceAbstractionStarter]: For program point L752(lines 752 870) no Hoare annotation was computed. [2018-09-18 11:52:00,537 INFO L426 ceAbstractionStarter]: For program point L819(lines 819 870) no Hoare annotation was computed. [2018-09-18 11:52:00,537 INFO L426 ceAbstractionStarter]: For program point L621(lines 621 870) no Hoare annotation was computed. [2018-09-18 11:52:00,537 INFO L426 ceAbstractionStarter]: For program point L555(lines 555 870) no Hoare annotation was computed. [2018-09-18 11:52:00,537 INFO L426 ceAbstractionStarter]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,537 INFO L426 ceAbstractionStarter]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,537 INFO L426 ceAbstractionStarter]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,538 INFO L426 ceAbstractionStarter]: For program point L688(lines 688 870) no Hoare annotation was computed. [2018-09-18 11:52:00,538 INFO L426 ceAbstractionStarter]: For program point L490(lines 490 870) no Hoare annotation was computed. [2018-09-18 11:52:00,538 INFO L426 ceAbstractionStarter]: For program point L160(line 160) no Hoare annotation was computed. [2018-09-18 11:52:00,538 INFO L426 ceAbstractionStarter]: For program point L94(line 94) no Hoare annotation was computed. [2018-09-18 11:52:00,538 INFO L426 ceAbstractionStarter]: For program point L28(line 28) no Hoare annotation was computed. [2018-09-18 11:52:00,538 INFO L426 ceAbstractionStarter]: For program point L359(lines 359 870) no Hoare annotation was computed. [2018-09-18 11:52:00,538 INFO L426 ceAbstractionStarter]: For program point L293(lines 293 870) no Hoare annotation was computed. [2018-09-18 11:52:00,538 INFO L426 ceAbstractionStarter]: For program point L426(lines 426 870) no Hoare annotation was computed. [2018-09-18 11:52:00,538 INFO L426 ceAbstractionStarter]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,538 INFO L426 ceAbstractionStarter]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,538 INFO L426 ceAbstractionStarter]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,539 INFO L426 ceAbstractionStarter]: For program point L229(lines 229 870) no Hoare annotation was computed. [2018-09-18 11:52:00,539 INFO L426 ceAbstractionStarter]: For program point L163(line 163) no Hoare annotation was computed. [2018-09-18 11:52:00,539 INFO L426 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-09-18 11:52:00,539 INFO L426 ceAbstractionStarter]: For program point L31(line 31) no Hoare annotation was computed. [2018-09-18 11:52:00,539 INFO L426 ceAbstractionStarter]: For program point L758(lines 758 870) no Hoare annotation was computed. [2018-09-18 11:52:00,539 INFO L426 ceAbstractionStarter]: For program point L626(lines 626 870) no Hoare annotation was computed. [2018-09-18 11:52:00,539 INFO L426 ceAbstractionStarter]: For program point L825(lines 825 870) no Hoare annotation was computed. [2018-09-18 11:52:00,539 INFO L426 ceAbstractionStarter]: For program point L561(lines 561 870) no Hoare annotation was computed. [2018-09-18 11:52:00,539 INFO L426 ceAbstractionStarter]: For program point L495(lines 495 870) no Hoare annotation was computed. [2018-09-18 11:52:00,539 INFO L426 ceAbstractionStarter]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,540 INFO L426 ceAbstractionStarter]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,540 INFO L426 ceAbstractionStarter]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2018-09-18 11:52:00,540 INFO L426 ceAbstractionStarter]: For program point L694(lines 694 870) no Hoare annotation was computed. [2018-09-18 11:52:00,540 INFO L426 ceAbstractionStarter]: For program point L166(line 166) no Hoare annotation was computed. [2018-09-18 11:52:00,540 INFO L426 ceAbstractionStarter]: For program point L100(line 100) no Hoare annotation was computed. [2018-09-18 11:52:00,540 INFO L426 ceAbstractionStarter]: For program point L34(line 34) no Hoare annotation was computed. [2018-09-18 11:52:00,540 INFO L426 ceAbstractionStarter]: For program point L299(lines 299 870) no Hoare annotation was computed. [2018-09-18 11:52:00,540 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-09-18 11:52:00,540 INFO L422 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a21~0 7) (<= 7 ~a21~0) (= 1 ~a24~0) (= 8 ~a15~0) (<= (+ ~a12~0 49) 0)) [2018-09-18 11:52:00,540 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-09-18 11:52:00,541 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-09-18 11:52:00,541 INFO L422 ceAbstractionStarter]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (and (= ~a12~0 |old(~a12~0)|) (<= |old(~a21~0)| ~a21~0) (= 1 ~a24~0) (<= ~a21~0 |old(~a21~0)|) (= 8 ~a15~0)) (< 0 (+ |old(~a12~0)| 49)) (not (= 8 |old(~a15~0)|)) (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|))) [2018-09-18 11:52:00,541 INFO L426 ceAbstractionStarter]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2018-09-18 11:52:00,541 INFO L422 ceAbstractionStarter]: At program point L888(line 888) the Hoare annotation is: (let ((.cse0 (= ~a24~0 |old(~a24~0)|)) (.cse2 (not (= 6 ~a15~0))) (.cse1 (<= ~a15~0 8))) (or (< 0 (+ |old(~a12~0)| 49)) (and .cse0 (<= ~a12~0 11) .cse1) (not (= 1 |old(~a24~0)|)) (and .cse1 .cse0 (< 80 ~a12~0) (= ~a21~0 9)) (and .cse0 (= 9 ~a15~0)) (not (= 8 |old(~a15~0)|)) (and (= 1 ~a24~0) (<= ~a21~0 8) .cse1) (and (and .cse2 .cse1) .cse0) (and .cse2 .cse1 (<= (+ ~a12~0 49) 0) (<= ~a21~0 6)) (< 7 |old(~a21~0)|) (< |old(~a21~0)| 7))) [2018-09-18 11:52:00,541 INFO L426 ceAbstractionStarter]: For program point L888-1(line 888) no Hoare annotation was computed. [2018-09-18 11:52:00,541 INFO L426 ceAbstractionStarter]: For program point L885(line 885) no Hoare annotation was computed. [2018-09-18 11:52:00,541 INFO L426 ceAbstractionStarter]: For program point L880-1(lines 880 889) no Hoare annotation was computed. [2018-09-18 11:52:00,542 INFO L422 ceAbstractionStarter]: At program point L880-3(lines 880 889) the Hoare annotation is: (let ((.cse0 (= ~a24~0 |old(~a24~0)|)) (.cse2 (not (= 6 ~a15~0))) (.cse1 (<= ~a15~0 8))) (or (< 0 (+ |old(~a12~0)| 49)) (and .cse0 (<= ~a12~0 11) .cse1) (not (= 1 |old(~a24~0)|)) (and .cse1 .cse0 (< 80 ~a12~0) (= ~a21~0 9)) (and .cse0 (= 9 ~a15~0)) (not (= 8 |old(~a15~0)|)) (and (= 1 ~a24~0) (<= ~a21~0 8) .cse1) (and (and .cse2 .cse1) .cse0) (and .cse2 .cse1 (<= (+ ~a12~0 49) 0) (<= ~a21~0 6)) (< 7 |old(~a21~0)|) (< |old(~a21~0)| 7))) [2018-09-18 11:52:00,542 INFO L426 ceAbstractionStarter]: For program point L880-4(lines 874 890) no Hoare annotation was computed. [2018-09-18 11:52:00,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.09 11:52:00 BoogieIcfgContainer [2018-09-18 11:52:00,561 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-18 11:52:00,562 INFO L168 Benchmark]: Toolchain (without parser) took 149672.28 ms. Allocated memory was 1.5 GB in the beginning and 4.2 GB in the end (delta: 2.6 GB). Free memory was 1.4 GB in the beginning and 2.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2018-09-18 11:52:00,563 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 11:52:00,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 837.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-09-18 11:52:00,564 INFO L168 Benchmark]: Boogie Procedure Inliner took 147.19 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-18 11:52:00,564 INFO L168 Benchmark]: Boogie Preprocessor took 267.26 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 781.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -883.2 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2018-09-18 11:52:00,565 INFO L168 Benchmark]: RCFGBuilder took 3831.98 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 121.6 MB). Peak memory consumption was 121.6 MB. Max. memory is 7.1 GB. [2018-09-18 11:52:00,566 INFO L168 Benchmark]: TraceAbstraction took 144581.39 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.7 GB in the end (delta: -615.5 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. [2018-09-18 11:52:00,570 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 837.31 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 147.19 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 267.26 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 781.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -883.2 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 3831.98 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.1 GB in the end (delta: 121.6 MB). Peak memory consumption was 121.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 144581.39 ms. Allocated memory was 2.3 GB in the beginning and 4.2 GB in the end (delta: 1.9 GB). Free memory was 2.1 GB in the beginning and 2.7 GB in the end (delta: -615.5 MB). Peak memory consumption was 2.4 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 169]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant Derived loop invariant: (((((((((0 < \old(a12) + 49 || ((a24 == \old(a24) && a12 <= 11) && a15 <= 8)) || !(1 == \old(a24))) || (((a15 <= 8 && a24 == \old(a24)) && 80 < a12) && a21 == 9)) || (a24 == \old(a24) && 9 == a15)) || !(8 == \old(a15))) || ((1 == a24 && a21 <= 8) && a15 <= 8)) || ((!(6 == a15) && a15 <= 8) && a24 == \old(a24))) || (((!(6 == a15) && a15 <= 8) && a12 + 49 <= 0) && a21 <= 6)) || 7 < \old(a21)) || \old(a21) < 7 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 255 locations, 1 error locations. SAFE Result, 144.4s OverallTime, 14 OverallIterations, 10 TraceHistogramMax, 76.2s AutomataDifference, 0.0s DeadEndRemovalTime, 12.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 1954 SDtfs, 33441 SDslu, 3312 SDs, 0 SdLazy, 39019 SolverSat, 6275 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 50.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24103 GetRequests, 23586 SyntacticMatches, 77 SemanticMatches, 440 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8191 ImplicationChecksByTransitivity, 29.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16962occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 3121 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 488 PreInvPairs, 764 NumberOfFragments, 422 HoareAnnotationTreeSize, 488 FomulaSimplifications, 208436 FormulaSimplificationTreeSizeReduction, 3.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 111782 FormulaSimplificationTreeSizeReductionInter, 8.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.6s SsaConstructionTime, 4.6s SatisfiabilityAnalysisTime, 38.9s InterpolantComputationTime, 18709 NumberOfCodeBlocks, 18709 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 30420 ConstructedInterpolants, 12 QuantifiedInterpolants, 105174084 SizeOfPredicates, 72 NumberOfNonLiveVariables, 17193 ConjunctsInSsa, 323 ConjunctsInUnsatCore, 52 InterpolantComputations, 9 PerfectInterpolantSequences, 57660/66903 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label32_true-unreach-call_false-termination.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-Benchmark-0-2018-09-18_11-52-00-584.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Problem14_label32_true-unreach-call_false-termination.c_svcomp-Reach-64bit-RubberTaipan_Default-OldIcfg.epf_AutomizerCInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-18_11-52-00-584.csv Received shutdown request...