java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label07_true-unreach-call_false-termination.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-1dbac8b [2018-10-27 12:14:58,872 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 12:14:58,874 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 12:14:58,895 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 12:14:58,895 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 12:14:58,898 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 12:14:58,901 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 12:14:58,904 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 12:14:58,906 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 12:14:58,909 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 12:14:58,910 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 12:14:58,910 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 12:14:58,913 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 12:14:58,914 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 12:14:58,915 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 12:14:58,919 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 12:14:58,921 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 12:14:58,923 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 12:14:58,925 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 12:14:58,927 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 12:14:58,928 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 12:14:58,929 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 12:14:58,931 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 12:14:58,932 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 12:14:58,932 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 12:14:58,933 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 12:14:58,934 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 12:14:58,935 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 12:14:58,936 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 12:14:58,937 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 12:14:58,937 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 12:14:58,938 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-10-27 12:14:58,941 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-INT.epf [2018-10-27 12:14:58,965 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 12:14:58,965 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 12:14:58,966 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 12:14:58,966 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 12:14:58,966 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 12:14:58,969 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 12:14:58,970 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 12:14:58,970 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-27 12:14:58,970 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 12:14:58,970 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-27 12:14:58,971 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 12:14:58,971 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 12:14:58,971 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 12:14:58,972 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 12:14:58,973 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 12:14:58,973 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 12:14:58,973 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 12:14:58,973 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 12:14:58,973 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 12:14:58,974 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 12:14:58,974 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 12:14:58,974 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 12:14:58,974 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 12:14:58,974 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 12:14:58,976 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 12:14:58,976 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 12:14:58,976 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 12:14:58,976 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 12:14:58,976 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 12:14:58,977 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 12:14:58,977 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 12:14:58,977 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 12:14:58,977 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-27 12:14:58,977 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-27 12:14:59,026 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 12:14:59,045 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 12:14:59,050 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 12:14:59,052 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 12:14:59,052 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 12:14:59,053 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label07_true-unreach-call_false-termination.c [2018-10-27 12:14:59,119 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/acd0aa00f/adefe7e3c6764b43a6e2ed259c02a18c/FLAGfd91bbcde [2018-10-27 12:14:59,730 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 12:14:59,732 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label07_true-unreach-call_false-termination.c [2018-10-27 12:14:59,746 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/acd0aa00f/adefe7e3c6764b43a6e2ed259c02a18c/FLAGfd91bbcde [2018-10-27 12:14:59,763 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/acd0aa00f/adefe7e3c6764b43a6e2ed259c02a18c [2018-10-27 12:14:59,774 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 12:14:59,776 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-27 12:14:59,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 12:14:59,777 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 12:14:59,782 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 12:14:59,783 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:14:59" (1/1) ... [2018-10-27 12:14:59,786 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53f2d59c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:14:59, skipping insertion in model container [2018-10-27 12:14:59,786 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:14:59" (1/1) ... [2018-10-27 12:14:59,797 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 12:14:59,865 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 12:15:00,391 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 12:15:00,396 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 12:15:00,495 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 12:15:00,512 INFO L193 MainTranslator]: Completed translation [2018-10-27 12:15:00,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:15:00 WrapperNode [2018-10-27 12:15:00,513 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 12:15:00,514 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 12:15:00,514 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 12:15:00,514 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 12:15:00,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:15:00" (1/1) ... [2018-10-27 12:15:00,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:15:00" (1/1) ... [2018-10-27 12:15:00,707 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 12:15:00,707 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 12:15:00,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 12:15:00,708 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 12:15:00,718 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:15:00" (1/1) ... [2018-10-27 12:15:00,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:15:00" (1/1) ... [2018-10-27 12:15:00,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:15:00" (1/1) ... [2018-10-27 12:15:00,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:15:00" (1/1) ... [2018-10-27 12:15:00,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:15:00" (1/1) ... [2018-10-27 12:15:00,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:15:00" (1/1) ... [2018-10-27 12:15:00,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:15:00" (1/1) ... [2018-10-27 12:15:00,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 12:15:00,791 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 12:15:00,791 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 12:15:00,791 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 12:15:00,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:15:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 12:15:00,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 12:15:00,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 12:15:00,859 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-27 12:15:00,859 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-27 12:15:00,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 12:15:00,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 12:15:00,860 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 12:15:00,860 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 12:15:04,324 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 12:15:04,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:15:04 BoogieIcfgContainer [2018-10-27 12:15:04,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 12:15:04,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 12:15:04,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 12:15:04,330 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 12:15:04,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:14:59" (1/3) ... [2018-10-27 12:15:04,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f96cfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:15:04, skipping insertion in model container [2018-10-27 12:15:04,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:15:00" (2/3) ... [2018-10-27 12:15:04,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28f96cfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:15:04, skipping insertion in model container [2018-10-27 12:15:04,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:15:04" (3/3) ... [2018-10-27 12:15:04,334 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label07_true-unreach-call_false-termination.c [2018-10-27 12:15:04,344 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 12:15:04,352 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 12:15:04,369 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 12:15:04,411 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 12:15:04,411 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 12:15:04,411 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 12:15:04,412 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 12:15:04,412 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 12:15:04,412 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 12:15:04,412 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 12:15:04,412 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 12:15:04,439 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states. [2018-10-27 12:15:04,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2018-10-27 12:15:04,453 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:15:04,454 INFO L375 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, 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] [2018-10-27 12:15:04,457 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:15:04,463 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:15:04,464 INFO L82 PathProgramCache]: Analyzing trace with hash -175459411, now seen corresponding path program 1 times [2018-10-27 12:15:04,467 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:15:04,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:15:04,525 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:15:04,525 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:15:04,526 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:15:04,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:15:05,148 WARN L179 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-27 12:15:05,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 12:15:05,271 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 12:15:05,272 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-27 12:15:05,272 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:15:05,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 12:15:05,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 12:15:05,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 12:15:05,297 INFO L87 Difference]: Start difference. First operand 208 states. Second operand 3 states. [2018-10-27 12:15:06,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 12:15:06,992 INFO L93 Difference]: Finished difference Result 550 states and 941 transitions. [2018-10-27 12:15:06,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 12:15:06,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2018-10-27 12:15:06,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 12:15:07,015 INFO L225 Difference]: With dead ends: 550 [2018-10-27 12:15:07,015 INFO L226 Difference]: Without dead ends: 340 [2018-10-27 12:15:07,022 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-27 12:15:07,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2018-10-27 12:15:07,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2018-10-27 12:15:07,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2018-10-27 12:15:07,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 553 transitions. [2018-10-27 12:15:07,104 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 553 transitions. Word has length 111 [2018-10-27 12:15:07,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 12:15:07,106 INFO L481 AbstractCegarLoop]: Abstraction has 340 states and 553 transitions. [2018-10-27 12:15:07,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 12:15:07,106 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 553 transitions. [2018-10-27 12:15:07,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2018-10-27 12:15:07,114 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:15:07,114 INFO L375 BasicCegarLoop]: trace histogram [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, 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] [2018-10-27 12:15:07,115 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:15:07,115 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:15:07,115 INFO L82 PathProgramCache]: Analyzing trace with hash -665844754, now seen corresponding path program 1 times [2018-10-27 12:15:07,115 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:15:07,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:15:07,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:15:07,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:15:07,117 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:15:07,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:15:07,302 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 12:15:07,302 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 12:15:07,302 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-27 12:15:07,303 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:15:07,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-27 12:15:07,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-27 12:15:07,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-27 12:15:07,306 INFO L87 Difference]: Start difference. First operand 340 states and 553 transitions. Second operand 6 states. [2018-10-27 12:15:09,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 12:15:09,316 INFO L93 Difference]: Finished difference Result 1075 states and 1835 transitions. [2018-10-27 12:15:09,317 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 12:15:09,317 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 122 [2018-10-27 12:15:09,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 12:15:09,328 INFO L225 Difference]: With dead ends: 1075 [2018-10-27 12:15:09,328 INFO L226 Difference]: Without dead ends: 741 [2018-10-27 12:15:09,335 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-27 12:15:09,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2018-10-27 12:15:09,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 724. [2018-10-27 12:15:09,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 724 states. [2018-10-27 12:15:09,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 724 states to 724 states and 1145 transitions. [2018-10-27 12:15:09,394 INFO L78 Accepts]: Start accepts. Automaton has 724 states and 1145 transitions. Word has length 122 [2018-10-27 12:15:09,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 12:15:09,394 INFO L481 AbstractCegarLoop]: Abstraction has 724 states and 1145 transitions. [2018-10-27 12:15:09,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-27 12:15:09,394 INFO L276 IsEmpty]: Start isEmpty. Operand 724 states and 1145 transitions. [2018-10-27 12:15:09,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2018-10-27 12:15:09,401 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:15:09,401 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2018-10-27 12:15:09,402 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:15:09,402 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:15:09,402 INFO L82 PathProgramCache]: Analyzing trace with hash 1859924383, now seen corresponding path program 1 times [2018-10-27 12:15:09,403 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:15:09,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:15:09,404 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:15:09,404 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:15:09,404 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:15:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:15:09,587 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 12:15:09,588 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 12:15:09,588 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 12:15:09,589 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 148 with the following transitions: [2018-10-27 12:15:09,591 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [17], [18], [22], [26], [30], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [525], [527], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-27 12:15:09,647 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-10-27 12:15:09,648 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 12:15:10,801 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 12:15:10,803 INFO L272 AbstractInterpreter]: Visited 115 different actions 180 times. Merged at 4 different actions 4 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-10-27 12:15:10,851 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:15:10,851 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 12:15:11,420 INFO L227 lantSequenceWeakener]: Weakened 144 states. On average, predicates are now at 80.35% of their original sizes. [2018-10-27 12:15:11,420 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 12:15:12,214 INFO L415 sIntCurrentIteration]: We unified 146 AI predicates to 146 [2018-10-27 12:15:12,214 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 12:15:12,217 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 12:15:12,218 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2018-10-27 12:15:12,218 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:15:12,218 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-27 12:15:12,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-27 12:15:12,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2018-10-27 12:15:12,219 INFO L87 Difference]: Start difference. First operand 724 states and 1145 transitions. Second operand 11 states. [2018-10-27 12:15:24,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 12:15:24,924 INFO L93 Difference]: Finished difference Result 2260 states and 3642 transitions. [2018-10-27 12:15:24,924 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2018-10-27 12:15:24,924 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 147 [2018-10-27 12:15:24,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 12:15:24,933 INFO L225 Difference]: With dead ends: 2260 [2018-10-27 12:15:24,934 INFO L226 Difference]: Without dead ends: 1542 [2018-10-27 12:15:24,938 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 157 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2018-10-27 12:15:24,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1542 states. [2018-10-27 12:15:24,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1542 to 1529. [2018-10-27 12:15:24,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1529 states. [2018-10-27 12:15:25,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1529 states to 1529 states and 2035 transitions. [2018-10-27 12:15:25,001 INFO L78 Accepts]: Start accepts. Automaton has 1529 states and 2035 transitions. Word has length 147 [2018-10-27 12:15:25,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 12:15:25,002 INFO L481 AbstractCegarLoop]: Abstraction has 1529 states and 2035 transitions. [2018-10-27 12:15:25,002 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-27 12:15:25,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1529 states and 2035 transitions. [2018-10-27 12:15:25,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2018-10-27 12:15:25,010 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:15:25,010 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2018-10-27 12:15:25,010 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:15:25,012 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:15:25,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1160952988, now seen corresponding path program 1 times [2018-10-27 12:15:25,012 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:15:25,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:15:25,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:15:25,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:15:25,015 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:15:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:15:25,224 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 52 proven. 15 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2018-10-27 12:15:25,225 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 12:15:25,225 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 12:15:25,225 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 161 with the following transitions: [2018-10-27 12:15:25,226 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [525], [527], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-27 12:15:25,232 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-10-27 12:15:25,232 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 12:15:25,480 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 12:15:25,480 INFO L272 AbstractInterpreter]: Visited 116 different actions 183 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-10-27 12:15:25,486 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:15:25,486 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 12:15:25,896 INFO L227 lantSequenceWeakener]: Weakened 69 states. On average, predicates are now at 81.2% of their original sizes. [2018-10-27 12:15:25,896 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 12:15:26,654 INFO L415 sIntCurrentIteration]: We unified 159 AI predicates to 159 [2018-10-27 12:15:26,654 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 12:15:26,655 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 12:15:26,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [6] total 23 [2018-10-27 12:15:26,655 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:15:26,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 19 states [2018-10-27 12:15:26,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2018-10-27 12:15:26,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2018-10-27 12:15:26,657 INFO L87 Difference]: Start difference. First operand 1529 states and 2035 transitions. Second operand 19 states. [2018-10-27 12:15:44,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 12:15:44,610 INFO L93 Difference]: Finished difference Result 3337 states and 4503 transitions. [2018-10-27 12:15:44,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2018-10-27 12:15:44,611 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 160 [2018-10-27 12:15:44,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 12:15:44,621 INFO L225 Difference]: With dead ends: 3337 [2018-10-27 12:15:44,621 INFO L226 Difference]: Without dead ends: 1950 [2018-10-27 12:15:44,627 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 171 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=207, Invalid=723, Unknown=0, NotChecked=0, Total=930 [2018-10-27 12:15:44,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1950 states. [2018-10-27 12:15:44,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1950 to 1940. [2018-10-27 12:15:44,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1940 states. [2018-10-27 12:15:44,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1940 states to 1940 states and 2487 transitions. [2018-10-27 12:15:44,695 INFO L78 Accepts]: Start accepts. Automaton has 1940 states and 2487 transitions. Word has length 160 [2018-10-27 12:15:44,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 12:15:44,696 INFO L481 AbstractCegarLoop]: Abstraction has 1940 states and 2487 transitions. [2018-10-27 12:15:44,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has 19 states. [2018-10-27 12:15:44,696 INFO L276 IsEmpty]: Start isEmpty. Operand 1940 states and 2487 transitions. [2018-10-27 12:15:44,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2018-10-27 12:15:44,704 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:15:44,704 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 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] [2018-10-27 12:15:44,704 INFO L424 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:15:44,705 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:15:44,705 INFO L82 PathProgramCache]: Analyzing trace with hash -552748137, now seen corresponding path program 1 times [2018-10-27 12:15:44,705 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:15:44,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:15:44,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:15:44,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:15:44,707 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:15:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:15:44,956 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 66 proven. 14 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2018-10-27 12:15:44,956 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 12:15:44,956 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 12:15:44,957 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 173 with the following transitions: [2018-10-27 12:15:44,957 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [17], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [525], [527], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-27 12:15:44,962 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-10-27 12:15:44,962 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 12:15:45,695 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 12:15:45,695 INFO L272 AbstractInterpreter]: Visited 117 different actions 306 times. Merged at 7 different actions 20 times. Never widened. Found 4 fixpoints after 3 different actions. Largest state had 42 variables. [2018-10-27 12:15:45,731 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:15:45,731 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 12:15:46,043 INFO L227 lantSequenceWeakener]: Weakened 169 states. On average, predicates are now at 80.37% of their original sizes. [2018-10-27 12:15:46,044 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 12:15:46,155 INFO L415 sIntCurrentIteration]: We unified 171 AI predicates to 171 [2018-10-27 12:15:46,155 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 12:15:46,155 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 12:15:46,156 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2018-10-27 12:15:46,156 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:15:46,156 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-10-27 12:15:46,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-10-27 12:15:46,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2018-10-27 12:15:46,157 INFO L87 Difference]: Start difference. First operand 1940 states and 2487 transitions. Second operand 10 states. [2018-10-27 12:15:52,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 12:15:52,253 INFO L93 Difference]: Finished difference Result 3540 states and 4667 transitions. [2018-10-27 12:15:52,253 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2018-10-27 12:15:52,253 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2018-10-27 12:15:52,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 12:15:52,263 INFO L225 Difference]: With dead ends: 3540 [2018-10-27 12:15:52,264 INFO L226 Difference]: Without dead ends: 2153 [2018-10-27 12:15:52,268 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 179 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2018-10-27 12:15:52,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2153 states. [2018-10-27 12:15:52,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2153 to 1861. [2018-10-27 12:15:52,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1861 states. [2018-10-27 12:15:52,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1861 states to 1861 states and 2424 transitions. [2018-10-27 12:15:52,322 INFO L78 Accepts]: Start accepts. Automaton has 1861 states and 2424 transitions. Word has length 172 [2018-10-27 12:15:52,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 12:15:52,322 INFO L481 AbstractCegarLoop]: Abstraction has 1861 states and 2424 transitions. [2018-10-27 12:15:52,322 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-10-27 12:15:52,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1861 states and 2424 transitions. [2018-10-27 12:15:52,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2018-10-27 12:15:52,329 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:15:52,330 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 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, 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] [2018-10-27 12:15:52,330 INFO L424 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:15:52,330 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:15:52,330 INFO L82 PathProgramCache]: Analyzing trace with hash -1723352556, now seen corresponding path program 1 times [2018-10-27 12:15:52,331 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:15:52,331 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:15:52,332 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:15:52,332 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:15:52,332 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:15:52,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:15:52,455 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 88 proven. 20 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-10-27 12:15:52,455 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 12:15:52,455 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 12:15:52,456 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 193 with the following transitions: [2018-10-27 12:15:52,456 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [17], [18], [22], [26], [30], [33], [34], [38], [42], [46], [49], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [525], [527], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-27 12:15:52,460 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-10-27 12:15:52,460 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 12:15:53,430 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 12:15:53,430 INFO L272 AbstractInterpreter]: Visited 119 different actions 555 times. Merged at 10 different actions 50 times. Widened at 1 different actions 1 times. Found 12 fixpoints after 3 different actions. Largest state had 42 variables. [2018-10-27 12:15:53,457 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:15:53,458 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 12:15:53,458 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 12:15:53,458 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 12:15:53,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:15:53,468 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 12:15:53,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:15:53,614 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 12:15:53,907 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2018-10-27 12:15:53,908 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 12:15:54,422 INFO L134 CoverageAnalysis]: Checked inductivity of 190 backedges. 88 proven. 20 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2018-10-27 12:15:54,459 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 12:15:54,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2018-10-27 12:15:54,460 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 12:15:54,461 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 12:15:54,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 12:15:54,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2018-10-27 12:15:54,461 INFO L87 Difference]: Start difference. First operand 1861 states and 2424 transitions. Second operand 8 states. [2018-10-27 12:15:59,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 12:15:59,993 INFO L93 Difference]: Finished difference Result 6103 states and 8697 transitions. [2018-10-27 12:15:59,993 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2018-10-27 12:15:59,994 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 192 [2018-10-27 12:15:59,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 12:16:00,010 INFO L225 Difference]: With dead ends: 6103 [2018-10-27 12:16:00,011 INFO L226 Difference]: Without dead ends: 2933 [2018-10-27 12:16:00,032 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 429 GetRequests, 399 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=215, Invalid=777, Unknown=0, NotChecked=0, Total=992 [2018-10-27 12:16:00,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2933 states. [2018-10-27 12:16:00,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2933 to 2747. [2018-10-27 12:16:00,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2747 states. [2018-10-27 12:16:00,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2747 states to 2747 states and 3337 transitions. [2018-10-27 12:16:00,122 INFO L78 Accepts]: Start accepts. Automaton has 2747 states and 3337 transitions. Word has length 192 [2018-10-27 12:16:00,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 12:16:00,122 INFO L481 AbstractCegarLoop]: Abstraction has 2747 states and 3337 transitions. [2018-10-27 12:16:00,122 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 12:16:00,122 INFO L276 IsEmpty]: Start isEmpty. Operand 2747 states and 3337 transitions. [2018-10-27 12:16:00,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2018-10-27 12:16:00,132 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:16:00,132 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 12:16:00,133 INFO L424 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:16:00,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:16:00,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1543535280, now seen corresponding path program 1 times [2018-10-27 12:16:00,133 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:16:00,134 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:16:00,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:16:00,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:16:00,135 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:16:00,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:16:00,699 WARN L179 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 13 [2018-10-27 12:16:00,801 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 92 proven. 15 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2018-10-27 12:16:00,801 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 12:16:00,801 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 12:16:00,802 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 194 with the following transitions: [2018-10-27 12:16:00,802 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [525], [527], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-27 12:16:00,806 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-10-27 12:16:00,806 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 12:16:01,523 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 12:16:01,524 INFO L272 AbstractInterpreter]: Visited 116 different actions 183 times. Merged at 5 different actions 5 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 42 variables. [2018-10-27 12:16:01,562 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:16:01,562 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 12:16:02,486 INFO L227 lantSequenceWeakener]: Weakened 87 states. On average, predicates are now at 80.95% of their original sizes. [2018-10-27 12:16:02,486 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 12:16:03,699 INFO L415 sIntCurrentIteration]: We unified 192 AI predicates to 192 [2018-10-27 12:16:03,699 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 12:16:03,700 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 12:16:03,700 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [23] imperfect sequences [6] total 27 [2018-10-27 12:16:03,700 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:16:03,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2018-10-27 12:16:03,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2018-10-27 12:16:03,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2018-10-27 12:16:03,701 INFO L87 Difference]: Start difference. First operand 2747 states and 3337 transitions. Second operand 23 states. [2018-10-27 12:16:22,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 12:16:22,670 INFO L93 Difference]: Finished difference Result 5772 states and 7052 transitions. [2018-10-27 12:16:22,670 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2018-10-27 12:16:22,670 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 193 [2018-10-27 12:16:22,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 12:16:22,683 INFO L225 Difference]: With dead ends: 5772 [2018-10-27 12:16:22,683 INFO L226 Difference]: Without dead ends: 3305 [2018-10-27 12:16:22,691 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 207 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=325, Invalid=1081, Unknown=0, NotChecked=0, Total=1406 [2018-10-27 12:16:22,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3305 states. [2018-10-27 12:16:22,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3305 to 2885. [2018-10-27 12:16:22,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2885 states. [2018-10-27 12:16:22,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2885 states to 2885 states and 3483 transitions. [2018-10-27 12:16:22,767 INFO L78 Accepts]: Start accepts. Automaton has 2885 states and 3483 transitions. Word has length 193 [2018-10-27 12:16:22,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 12:16:22,767 INFO L481 AbstractCegarLoop]: Abstraction has 2885 states and 3483 transitions. [2018-10-27 12:16:22,767 INFO L482 AbstractCegarLoop]: Interpolant automaton has 23 states. [2018-10-27 12:16:22,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2885 states and 3483 transitions. [2018-10-27 12:16:22,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-10-27 12:16:22,777 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:16:22,778 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 12:16:22,778 INFO L424 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:16:22,778 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:16:22,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1421736141, now seen corresponding path program 1 times [2018-10-27 12:16:22,778 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:16:22,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:16:22,779 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:16:22,779 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:16:22,780 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:16:22,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:16:23,354 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 90 proven. 44 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2018-10-27 12:16:23,354 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 12:16:23,354 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 12:16:23,354 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 203 with the following transitions: [2018-10-27 12:16:23,355 INFO L202 CegarAbsIntRunner]: [0], [1], [2], [5], [6], [10], [14], [18], [22], [26], [30], [33], [34], [38], [42], [46], [50], [54], [58], [62], [65], [66], [70], [74], [78], [82], [86], [90], [94], [98], [102], [106], [110], [114], [118], [122], [126], [130], [134], [137], [138], [142], [146], [150], [154], [158], [162], [166], [170], [174], [178], [182], [186], [190], [194], [198], [202], [206], [210], [214], [218], [222], [226], [230], [234], [238], [242], [246], [250], [254], [258], [262], [266], [273], [281], [289], [297], [305], [313], [321], [329], [337], [345], [353], [361], [369], [377], [385], [393], [401], [409], [417], [425], [433], [441], [449], [457], [465], [473], [481], [489], [497], [505], [513], [521], [525], [527], [757], [761], [765], [771], [775], [777], [782], [783], [784], [786], [787] [2018-10-27 12:16:23,357 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, IntervalDomain] [2018-10-27 12:16:23,357 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 12:16:24,373 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-10-27 12:16:24,373 INFO L272 AbstractInterpreter]: Visited 118 different actions 550 times. Merged at 9 different actions 50 times. Widened at 1 different actions 1 times. Found 11 fixpoints after 3 different actions. Largest state had 42 variables. [2018-10-27 12:16:24,380 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:16:24,380 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-10-27 12:16:24,380 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 12:16:24,380 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 12:16:24,389 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:16:24,390 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-27 12:16:24,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:16:24,488 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 12:16:24,599 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2018-10-27 12:16:24,600 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 12:16:24,738 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 96 proven. 36 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2018-10-27 12:16:24,760 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-10-27 12:16:24,760 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5, 5] total 13 [2018-10-27 12:16:24,760 INFO L251 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-10-27 12:16:24,761 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-10-27 12:16:24,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-10-27 12:16:24,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2018-10-27 12:16:24,762 INFO L87 Difference]: Start difference. First operand 2885 states and 3483 transitions. Second operand 11 states. [2018-10-27 12:16:27,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 12:16:27,960 INFO L93 Difference]: Finished difference Result 10354 states and 13210 transitions. [2018-10-27 12:16:27,961 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2018-10-27 12:16:27,961 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 202 [2018-10-27 12:16:27,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 12:16:27,991 INFO L225 Difference]: With dead ends: 10354 [2018-10-27 12:16:27,992 INFO L226 Difference]: Without dead ends: 7749 [2018-10-27 12:16:28,008 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 407 SyntacticMatches, 2 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=111, Invalid=269, Unknown=0, NotChecked=0, Total=380 [2018-10-27 12:16:28,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7749 states. [2018-10-27 12:16:28,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7749 to 7724. [2018-10-27 12:16:28,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7724 states. [2018-10-27 12:16:28,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7724 states to 7724 states and 9382 transitions. [2018-10-27 12:16:28,210 INFO L78 Accepts]: Start accepts. Automaton has 7724 states and 9382 transitions. Word has length 202 [2018-10-27 12:16:28,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 12:16:28,210 INFO L481 AbstractCegarLoop]: Abstraction has 7724 states and 9382 transitions. [2018-10-27 12:16:28,211 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-10-27 12:16:28,211 INFO L276 IsEmpty]: Start isEmpty. Operand 7724 states and 9382 transitions. [2018-10-27 12:16:28,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 203 [2018-10-27 12:16:28,230 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 12:16:28,231 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 12:16:28,231 INFO L424 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 12:16:28,231 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 12:16:28,231 INFO L82 PathProgramCache]: Analyzing trace with hash 669212635, now seen corresponding path program 2 times [2018-10-27 12:16:28,231 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 12:16:28,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:16:28,232 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 12:16:28,232 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 12:16:28,232 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 12:16:28,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 12:16:28,766 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 90 proven. 46 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-10-27 12:16:28,766 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 12:16:28,766 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 12:16:28,767 INFO L184 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-10-27 12:16:28,767 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-27 12:16:28,767 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 12:16:28,767 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-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 [2018-10-27 12:16:28,775 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-10-27 12:16:28,775 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-10-27 12:16:28,849 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2018-10-27 12:16:28,849 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-10-27 12:16:28,856 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 12:16:28,954 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-10-27 12:16:28,955 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-27 12:16:29,297 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 88 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2018-10-27 12:16:29,317 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2018-10-27 12:16:29,317 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [9] total 10 [2018-10-27 12:16:29,318 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 12:16:29,318 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-27 12:16:29,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-27 12:16:29,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-10-27 12:16:29,319 INFO L87 Difference]: Start difference. First operand 7724 states and 9382 transitions. Second operand 3 states. [2018-10-27 12:16:30,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 12:16:30,058 INFO L93 Difference]: Finished difference Result 19992 states and 24602 transitions. [2018-10-27 12:16:30,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-27 12:16:30,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 202 [2018-10-27 12:16:30,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 12:16:30,064 INFO L225 Difference]: With dead ends: 19992 [2018-10-27 12:16:30,065 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 12:16:30,105 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 413 GetRequests, 403 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2018-10-27 12:16:30,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 12:16:30,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 12:16:30,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 12:16:30,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 12:16:30,107 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 202 [2018-10-27 12:16:30,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 12:16:30,107 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 12:16:30,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-27 12:16:30,107 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 12:16:30,107 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 12:16:30,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 12:16:30,178 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,379 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,478 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,546 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,547 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,548 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,555 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,567 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,577 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,579 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,585 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,593 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,601 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,609 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,614 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,701 WARN L179 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 316 DAG size of output: 195 [2018-10-27 12:16:30,844 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,844 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,846 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,850 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,860 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,863 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,874 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,876 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,882 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,890 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,893 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,899 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,903 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,906 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-10-27 12:16:30,987 WARN L179 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 292 DAG size of output: 184 [2018-10-27 12:16:32,007 WARN L179 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2018-10-27 12:16:32,751 WARN L179 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 86 [2018-10-27 12:16:38,722 WARN L179 SmtUtils]: Spent 5.95 s on a formula simplification. DAG size of input: 402 DAG size of output: 106 [2018-10-27 12:16:39,658 WARN L179 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 88 [2018-10-27 12:16:40,044 WARN L179 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 88 [2018-10-27 12:16:40,048 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-27 12:16:40,048 INFO L421 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (= ~a7~0 |old(~a7~0)|) (= |old(~a20~0)| ~a20~0) (= |old(~a16~0)| ~a16~0)) [2018-10-27 12:16:40,048 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 12:16:40,048 INFO L425 ceAbstractionStarter]: For program point L333(lines 333 390) no Hoare annotation was computed. [2018-10-27 12:16:40,048 INFO L425 ceAbstractionStarter]: For program point L102(lines 102 390) no Hoare annotation was computed. [2018-10-27 12:16:40,048 INFO L425 ceAbstractionStarter]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,049 INFO L425 ceAbstractionStarter]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,049 INFO L425 ceAbstractionStarter]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,049 INFO L425 ceAbstractionStarter]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,049 INFO L425 ceAbstractionStarter]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,049 INFO L425 ceAbstractionStarter]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,049 INFO L425 ceAbstractionStarter]: For program point L268(lines 268 390) no Hoare annotation was computed. [2018-10-27 12:16:40,049 INFO L425 ceAbstractionStarter]: For program point L136(lines 136 390) no Hoare annotation was computed. [2018-10-27 12:16:40,049 INFO L425 ceAbstractionStarter]: For program point L566(line 566) no Hoare annotation was computed. [2018-10-27 12:16:40,050 INFO L425 ceAbstractionStarter]: For program point L533(line 533) no Hoare annotation was computed. [2018-10-27 12:16:40,050 INFO L425 ceAbstractionStarter]: For program point L500(line 500) no Hoare annotation was computed. [2018-10-27 12:16:40,050 INFO L425 ceAbstractionStarter]: For program point L467(line 467) no Hoare annotation was computed. [2018-10-27 12:16:40,050 INFO L425 ceAbstractionStarter]: For program point L434(line 434) no Hoare annotation was computed. [2018-10-27 12:16:40,050 INFO L425 ceAbstractionStarter]: For program point L401(line 401) no Hoare annotation was computed. [2018-10-27 12:16:40,050 INFO L425 ceAbstractionStarter]: For program point L203(lines 203 390) no Hoare annotation was computed. [2018-10-27 12:16:40,050 INFO L425 ceAbstractionStarter]: For program point L72(lines 72 390) no Hoare annotation was computed. [2018-10-27 12:16:40,051 INFO L425 ceAbstractionStarter]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,051 INFO L425 ceAbstractionStarter]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,051 INFO L425 ceAbstractionStarter]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,051 INFO L425 ceAbstractionStarter]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,051 INFO L425 ceAbstractionStarter]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,051 INFO L425 ceAbstractionStarter]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,051 INFO L425 ceAbstractionStarter]: For program point L337(lines 337 390) no Hoare annotation was computed. [2018-10-27 12:16:40,051 INFO L425 ceAbstractionStarter]: For program point L238(lines 238 390) no Hoare annotation was computed. [2018-10-27 12:16:40,051 INFO L425 ceAbstractionStarter]: For program point L569(line 569) no Hoare annotation was computed. [2018-10-27 12:16:40,052 INFO L425 ceAbstractionStarter]: For program point L536(line 536) no Hoare annotation was computed. [2018-10-27 12:16:40,052 INFO L425 ceAbstractionStarter]: For program point L503(line 503) no Hoare annotation was computed. [2018-10-27 12:16:40,052 INFO L425 ceAbstractionStarter]: For program point L470(line 470) no Hoare annotation was computed. [2018-10-27 12:16:40,052 INFO L425 ceAbstractionStarter]: For program point L437(line 437) no Hoare annotation was computed. [2018-10-27 12:16:40,052 INFO L425 ceAbstractionStarter]: For program point L404(line 404) no Hoare annotation was computed. [2018-10-27 12:16:40,052 INFO L425 ceAbstractionStarter]: For program point L173(lines 173 390) no Hoare annotation was computed. [2018-10-27 12:16:40,052 INFO L425 ceAbstractionStarter]: For program point L140(lines 140 390) no Hoare annotation was computed. [2018-10-27 12:16:40,052 INFO L425 ceAbstractionStarter]: For program point L372(lines 372 390) no Hoare annotation was computed. [2018-10-27 12:16:40,053 INFO L425 ceAbstractionStarter]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 488) no Hoare annotation was computed. [2018-10-27 12:16:40,053 INFO L425 ceAbstractionStarter]: For program point L306(lines 306 390) no Hoare annotation was computed. [2018-10-27 12:16:40,053 INFO L425 ceAbstractionStarter]: For program point L273(lines 273 390) no Hoare annotation was computed. [2018-10-27 12:16:40,053 INFO L425 ceAbstractionStarter]: For program point L108(lines 108 390) no Hoare annotation was computed. [2018-10-27 12:16:40,053 INFO L425 ceAbstractionStarter]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2018-10-27 12:16:40,053 INFO L425 ceAbstractionStarter]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,053 INFO L425 ceAbstractionStarter]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,053 INFO L425 ceAbstractionStarter]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,053 INFO L425 ceAbstractionStarter]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,053 INFO L425 ceAbstractionStarter]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,053 INFO L425 ceAbstractionStarter]: For program point L208(lines 208 390) no Hoare annotation was computed. [2018-10-27 12:16:40,054 INFO L425 ceAbstractionStarter]: For program point L43(lines 43 390) no Hoare annotation was computed. [2018-10-27 12:16:40,054 INFO L425 ceAbstractionStarter]: For program point L572(line 572) no Hoare annotation was computed. [2018-10-27 12:16:40,054 INFO L425 ceAbstractionStarter]: For program point L539(line 539) no Hoare annotation was computed. [2018-10-27 12:16:40,054 INFO L425 ceAbstractionStarter]: For program point L506(line 506) no Hoare annotation was computed. [2018-10-27 12:16:40,054 INFO L425 ceAbstractionStarter]: For program point L473(line 473) no Hoare annotation was computed. [2018-10-27 12:16:40,054 INFO L425 ceAbstractionStarter]: For program point L440(line 440) no Hoare annotation was computed. [2018-10-27 12:16:40,054 INFO L425 ceAbstractionStarter]: For program point L407(line 407) no Hoare annotation was computed. [2018-10-27 12:16:40,054 INFO L425 ceAbstractionStarter]: For program point L144(lines 144 390) no Hoare annotation was computed. [2018-10-27 12:16:40,054 INFO L425 ceAbstractionStarter]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,054 INFO L425 ceAbstractionStarter]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,054 INFO L425 ceAbstractionStarter]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,054 INFO L425 ceAbstractionStarter]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,054 INFO L425 ceAbstractionStarter]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,055 INFO L425 ceAbstractionStarter]: For program point L178(lines 178 390) no Hoare annotation was computed. [2018-10-27 12:16:40,055 INFO L425 ceAbstractionStarter]: For program point L542(line 542) no Hoare annotation was computed. [2018-10-27 12:16:40,055 INFO L425 ceAbstractionStarter]: For program point L509(line 509) no Hoare annotation was computed. [2018-10-27 12:16:40,055 INFO L425 ceAbstractionStarter]: For program point L476(line 476) no Hoare annotation was computed. [2018-10-27 12:16:40,055 INFO L425 ceAbstractionStarter]: For program point L443(line 443) no Hoare annotation was computed. [2018-10-27 12:16:40,055 INFO L425 ceAbstractionStarter]: For program point L410(line 410) no Hoare annotation was computed. [2018-10-27 12:16:40,055 INFO L425 ceAbstractionStarter]: For program point L377(lines 377 390) no Hoare annotation was computed. [2018-10-27 12:16:40,055 INFO L425 ceAbstractionStarter]: For program point L278(lines 278 390) no Hoare annotation was computed. [2018-10-27 12:16:40,055 INFO L425 ceAbstractionStarter]: For program point L245(lines 245 390) no Hoare annotation was computed. [2018-10-27 12:16:40,055 INFO L425 ceAbstractionStarter]: For program point L80(lines 80 390) no Hoare annotation was computed. [2018-10-27 12:16:40,056 INFO L425 ceAbstractionStarter]: For program point L345(lines 345 390) no Hoare annotation was computed. [2018-10-27 12:16:40,056 INFO L425 ceAbstractionStarter]: For program point L312(lines 312 390) no Hoare annotation was computed. [2018-10-27 12:16:40,056 INFO L425 ceAbstractionStarter]: For program point L114(lines 114 390) no Hoare annotation was computed. [2018-10-27 12:16:40,056 INFO L425 ceAbstractionStarter]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,056 INFO L425 ceAbstractionStarter]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,056 INFO L425 ceAbstractionStarter]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,056 INFO L425 ceAbstractionStarter]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,056 INFO L425 ceAbstractionStarter]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,056 INFO L425 ceAbstractionStarter]: For program point L214(lines 214 390) no Hoare annotation was computed. [2018-10-27 12:16:40,056 INFO L425 ceAbstractionStarter]: For program point L148(lines 148 390) no Hoare annotation was computed. [2018-10-27 12:16:40,057 INFO L425 ceAbstractionStarter]: For program point L49(lines 49 390) no Hoare annotation was computed. [2018-10-27 12:16:40,057 INFO L425 ceAbstractionStarter]: For program point L545(line 545) no Hoare annotation was computed. [2018-10-27 12:16:40,057 INFO L425 ceAbstractionStarter]: For program point L512(line 512) no Hoare annotation was computed. [2018-10-27 12:16:40,057 INFO L425 ceAbstractionStarter]: For program point L479(line 479) no Hoare annotation was computed. [2018-10-27 12:16:40,057 INFO L425 ceAbstractionStarter]: For program point L446(line 446) no Hoare annotation was computed. [2018-10-27 12:16:40,057 INFO L425 ceAbstractionStarter]: For program point L413(line 413) no Hoare annotation was computed. [2018-10-27 12:16:40,057 INFO L425 ceAbstractionStarter]: For program point L84(lines 84 390) no Hoare annotation was computed. [2018-10-27 12:16:40,057 INFO L425 ceAbstractionStarter]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,057 INFO L425 ceAbstractionStarter]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,057 INFO L425 ceAbstractionStarter]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,057 INFO L425 ceAbstractionStarter]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,057 INFO L425 ceAbstractionStarter]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,057 INFO L425 ceAbstractionStarter]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,057 INFO L425 ceAbstractionStarter]: For program point L382(lines 382 390) no Hoare annotation was computed. [2018-10-27 12:16:40,058 INFO L425 ceAbstractionStarter]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,058 INFO L425 ceAbstractionStarter]: For program point L316(lines 316 390) no Hoare annotation was computed. [2018-10-27 12:16:40,058 INFO L425 ceAbstractionStarter]: For program point L250(lines 250 390) no Hoare annotation was computed. [2018-10-27 12:16:40,058 INFO L425 ceAbstractionStarter]: For program point L548(line 548) no Hoare annotation was computed. [2018-10-27 12:16:40,058 INFO L425 ceAbstractionStarter]: For program point L515(line 515) no Hoare annotation was computed. [2018-10-27 12:16:40,058 INFO L425 ceAbstractionStarter]: For program point L482(line 482) no Hoare annotation was computed. [2018-10-27 12:16:40,058 INFO L425 ceAbstractionStarter]: For program point L449(line 449) no Hoare annotation was computed. [2018-10-27 12:16:40,058 INFO L425 ceAbstractionStarter]: For program point L416(line 416) no Hoare annotation was computed. [2018-10-27 12:16:40,058 INFO L425 ceAbstractionStarter]: For program point L218(lines 218 390) no Hoare annotation was computed. [2018-10-27 12:16:40,058 INFO L425 ceAbstractionStarter]: For program point L152(lines 152 390) no Hoare annotation was computed. [2018-10-27 12:16:40,058 INFO L425 ceAbstractionStarter]: For program point L119(lines 119 390) no Hoare annotation was computed. [2018-10-27 12:16:40,058 INFO L425 ceAbstractionStarter]: For program point L318(lines 318 390) no Hoare annotation was computed. [2018-10-27 12:16:40,058 INFO L425 ceAbstractionStarter]: For program point L186(lines 186 390) no Hoare annotation was computed. [2018-10-27 12:16:40,059 INFO L425 ceAbstractionStarter]: For program point L54(lines 54 390) no Hoare annotation was computed. [2018-10-27 12:16:40,059 INFO L425 ceAbstractionStarter]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,059 INFO L425 ceAbstractionStarter]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,059 INFO L425 ceAbstractionStarter]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,059 INFO L425 ceAbstractionStarter]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,059 INFO L425 ceAbstractionStarter]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,059 INFO L425 ceAbstractionStarter]: For program point L286(lines 286 390) no Hoare annotation was computed. [2018-10-27 12:16:40,059 INFO L425 ceAbstractionStarter]: For program point L551(line 551) no Hoare annotation was computed. [2018-10-27 12:16:40,059 INFO L425 ceAbstractionStarter]: For program point L518(line 518) no Hoare annotation was computed. [2018-10-27 12:16:40,059 INFO L425 ceAbstractionStarter]: For program point L485(line 485) no Hoare annotation was computed. [2018-10-27 12:16:40,059 INFO L425 ceAbstractionStarter]: For program point L452(line 452) no Hoare annotation was computed. [2018-10-27 12:16:40,060 INFO L425 ceAbstractionStarter]: For program point L419(line 419) no Hoare annotation was computed. [2018-10-27 12:16:40,060 INFO L425 ceAbstractionStarter]: For program point L353(lines 353 390) no Hoare annotation was computed. [2018-10-27 12:16:40,060 INFO L425 ceAbstractionStarter]: For program point L189(lines 189 390) no Hoare annotation was computed. [2018-10-27 12:16:40,060 INFO L425 ceAbstractionStarter]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,060 INFO L425 ceAbstractionStarter]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,060 INFO L425 ceAbstractionStarter]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,060 INFO L425 ceAbstractionStarter]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,060 INFO L425 ceAbstractionStarter]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,060 INFO L425 ceAbstractionStarter]: For program point L355(lines 355 390) no Hoare annotation was computed. [2018-10-27 12:16:40,060 INFO L425 ceAbstractionStarter]: For program point L256(lines 256 390) no Hoare annotation was computed. [2018-10-27 12:16:40,060 INFO L425 ceAbstractionStarter]: For program point L223(lines 223 390) no Hoare annotation was computed. [2018-10-27 12:16:40,060 INFO L425 ceAbstractionStarter]: For program point L124(lines 124 390) no Hoare annotation was computed. [2018-10-27 12:16:40,060 INFO L425 ceAbstractionStarter]: For program point L554(line 554) no Hoare annotation was computed. [2018-10-27 12:16:40,061 INFO L425 ceAbstractionStarter]: For program point L521(line 521) no Hoare annotation was computed. [2018-10-27 12:16:40,061 INFO L425 ceAbstractionStarter]: For program point L488(line 488) no Hoare annotation was computed. [2018-10-27 12:16:40,061 INFO L425 ceAbstractionStarter]: For program point L455(line 455) no Hoare annotation was computed. [2018-10-27 12:16:40,061 INFO L425 ceAbstractionStarter]: For program point L422(line 422) no Hoare annotation was computed. [2018-10-27 12:16:40,061 INFO L425 ceAbstractionStarter]: For program point L92(lines 92 390) no Hoare annotation was computed. [2018-10-27 12:16:40,061 INFO L421 ceAbstractionStarter]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse24 (= ~a21~0 1))) (let ((.cse11 (< 6 |calculate_output_#in~input|)) (.cse12 (not (= 1 |old(~a21~0)|))) (.cse13 (< 15 |old(~a8~0)|)) (.cse9 (= 13 |old(~a8~0)|)) (.cse14 (not (= 8 ~a12~0))) (.cse16 (not (= 1 |old(~a17~0)|))) (.cse15 (and (= ~a17~0 1) .cse24 (<= 13 ~a8~0))) (.cse18 (< 5 |old(~a16~0)|)) (.cse19 (< |old(~a16~0)| 4)) (.cse20 (< 1 |old(~a7~0)|)) (.cse21 (< |old(~a8~0)| 13)) (.cse22 (< |old(~a7~0)| 0)) (.cse23 (< |calculate_output_#in~input| 1)) (.cse5 (< |old(~a20~0)| 1)) (.cse6 (not (= 1 |old(~a7~0)|))) (.cse0 (= 6 |old(~a16~0)|)) (.cse8 (< 0 |old(~a17~0)|)) (.cse7 (<= ~a17~0 0)) (.cse1 (< 13 |old(~a8~0)|)) (.cse17 (not (= 1 |old(~a20~0)|))) (.cse2 (<= ~a8~0 13)) (.cse3 (= ~a7~0 |old(~a7~0)|)) (.cse10 (= |old(~a20~0)| ~a20~0)) (.cse4 (= |old(~a16~0)| ~a16~0))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4)) (or (<= 15 ~a8~0) (< |old(~a8~0)| 15)) (or .cse5 .cse6 .cse7 .cse8) (or .cse9 .cse7 .cse8) (or (and (<= ~a8~0 |old(~a8~0)|) .cse3 .cse10 .cse4 (not (= ~a8~0 13))) .cse9) (or .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 .cse19 .cse20 .cse21 .cse22 .cse23) (or (and (<= 0 ~a17~0) .cse24) .cse8 (or (not (= 0 |old(~a7~0)|)) .cse12 .cse14 (< |old(~a16~0)| 5) (< 6 |old(~a16~0)|) .cse17 (not (= 15 |old(~a8~0)|)) (< |old(~a17~0)| 0))) (or .cse11 .cse12 .cse13 .cse9 .cse14 (< |old(~a20~0)| 0) .cse16 .cse15 .cse18 .cse19 .cse20 .cse21 .cse22 (< 0 |old(~a20~0)|) .cse23) (or .cse1 .cse5 .cse6 .cse8 (and .cse2 (= 1 ~a7~0) .cse10 .cse4)) (or .cse0 .cse10) (or .cse0 .cse8 .cse7) (or .cse1 .cse17 (and .cse2 .cse3 .cse10 .cse4))))) [2018-10-27 12:16:40,061 INFO L425 ceAbstractionStarter]: For program point L324(lines 324 390) no Hoare annotation was computed. [2018-10-27 12:16:40,061 INFO L425 ceAbstractionStarter]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,061 INFO L425 ceAbstractionStarter]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,061 INFO L425 ceAbstractionStarter]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,061 INFO L425 ceAbstractionStarter]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,062 INFO L425 ceAbstractionStarter]: For program point L391(lines 391 393) no Hoare annotation was computed. [2018-10-27 12:16:40,062 INFO L425 ceAbstractionStarter]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,062 INFO L425 ceAbstractionStarter]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,062 INFO L425 ceAbstractionStarter]: For program point L292(lines 292 390) no Hoare annotation was computed. [2018-10-27 12:16:40,062 INFO L425 ceAbstractionStarter]: For program point L160(lines 160 390) no Hoare annotation was computed. [2018-10-27 12:16:40,062 INFO L425 ceAbstractionStarter]: For program point L557(line 557) no Hoare annotation was computed. [2018-10-27 12:16:40,062 INFO L425 ceAbstractionStarter]: For program point L524(line 524) no Hoare annotation was computed. [2018-10-27 12:16:40,062 INFO L425 ceAbstractionStarter]: For program point L491(line 491) no Hoare annotation was computed. [2018-10-27 12:16:40,062 INFO L425 ceAbstractionStarter]: For program point L458(line 458) no Hoare annotation was computed. [2018-10-27 12:16:40,062 INFO L425 ceAbstractionStarter]: For program point L425(line 425) no Hoare annotation was computed. [2018-10-27 12:16:40,062 INFO L425 ceAbstractionStarter]: For program point L392(line 392) no Hoare annotation was computed. [2018-10-27 12:16:40,062 INFO L425 ceAbstractionStarter]: For program point L194(lines 194 390) no Hoare annotation was computed. [2018-10-27 12:16:40,063 INFO L425 ceAbstractionStarter]: For program point L62(lines 62 390) no Hoare annotation was computed. [2018-10-27 12:16:40,063 INFO L425 ceAbstractionStarter]: For program point L261(lines 261 390) no Hoare annotation was computed. [2018-10-27 12:16:40,063 INFO L425 ceAbstractionStarter]: For program point L129(lines 129 390) no Hoare annotation was computed. [2018-10-27 12:16:40,063 INFO L425 ceAbstractionStarter]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,063 INFO L425 ceAbstractionStarter]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,063 INFO L425 ceAbstractionStarter]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,063 INFO L425 ceAbstractionStarter]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,063 INFO L425 ceAbstractionStarter]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,063 INFO L425 ceAbstractionStarter]: For program point L361(lines 361 390) no Hoare annotation was computed. [2018-10-27 12:16:40,064 INFO L425 ceAbstractionStarter]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,064 INFO L425 ceAbstractionStarter]: For program point L97(lines 97 390) no Hoare annotation was computed. [2018-10-27 12:16:40,064 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 390) no Hoare annotation was computed. [2018-10-27 12:16:40,064 INFO L425 ceAbstractionStarter]: For program point L560(line 560) no Hoare annotation was computed. [2018-10-27 12:16:40,064 INFO L425 ceAbstractionStarter]: For program point L527(line 527) no Hoare annotation was computed. [2018-10-27 12:16:40,064 INFO L425 ceAbstractionStarter]: For program point L494(line 494) no Hoare annotation was computed. [2018-10-27 12:16:40,064 INFO L425 ceAbstractionStarter]: For program point L461(line 461) no Hoare annotation was computed. [2018-10-27 12:16:40,064 INFO L425 ceAbstractionStarter]: For program point L428(line 428) no Hoare annotation was computed. [2018-10-27 12:16:40,064 INFO L425 ceAbstractionStarter]: For program point L395(line 395) no Hoare annotation was computed. [2018-10-27 12:16:40,065 INFO L425 ceAbstractionStarter]: For program point L329(lines 329 390) no Hoare annotation was computed. [2018-10-27 12:16:40,065 INFO L425 ceAbstractionStarter]: For program point L197(lines 197 390) no Hoare annotation was computed. [2018-10-27 12:16:40,065 INFO L425 ceAbstractionStarter]: For program point L65(lines 65 390) no Hoare annotation was computed. [2018-10-27 12:16:40,065 INFO L425 ceAbstractionStarter]: For program point L363(lines 363 390) no Hoare annotation was computed. [2018-10-27 12:16:40,065 INFO L425 ceAbstractionStarter]: For program point L231(lines 231 390) no Hoare annotation was computed. [2018-10-27 12:16:40,065 INFO L425 ceAbstractionStarter]: For program point L165(lines 165 390) no Hoare annotation was computed. [2018-10-27 12:16:40,065 INFO L425 ceAbstractionStarter]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,065 INFO L425 ceAbstractionStarter]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,066 INFO L425 ceAbstractionStarter]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,066 INFO L425 ceAbstractionStarter]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,066 INFO L425 ceAbstractionStarter]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,066 INFO L425 ceAbstractionStarter]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2018-10-27 12:16:40,066 INFO L425 ceAbstractionStarter]: For program point L265(lines 265 390) no Hoare annotation was computed. [2018-10-27 12:16:40,066 INFO L425 ceAbstractionStarter]: For program point L563(line 563) no Hoare annotation was computed. [2018-10-27 12:16:40,066 INFO L425 ceAbstractionStarter]: For program point L530(line 530) no Hoare annotation was computed. [2018-10-27 12:16:40,066 INFO L425 ceAbstractionStarter]: For program point L497(line 497) no Hoare annotation was computed. [2018-10-27 12:16:40,066 INFO L425 ceAbstractionStarter]: For program point L464(line 464) no Hoare annotation was computed. [2018-10-27 12:16:40,067 INFO L425 ceAbstractionStarter]: For program point L431(line 431) no Hoare annotation was computed. [2018-10-27 12:16:40,067 INFO L425 ceAbstractionStarter]: For program point L398(line 398) no Hoare annotation was computed. [2018-10-27 12:16:40,067 INFO L425 ceAbstractionStarter]: For program point L365(lines 365 390) no Hoare annotation was computed. [2018-10-27 12:16:40,067 INFO L425 ceAbstractionStarter]: For program point L299(lines 299 390) no Hoare annotation was computed. [2018-10-27 12:16:40,067 INFO L425 ceAbstractionStarter]: For program point L35(lines 35 390) no Hoare annotation was computed. [2018-10-27 12:16:40,067 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 12:16:40,067 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ~d~0 4) (= ~a8~0 15) (= ~z~0 26) (= ~a17~0 1) (= ~c~0 3) (= ~a21~0 1) (= ~f~0 6) (= ~w~0 23) (= ~u~0 21) (= ~v~0 22) (= ~a7~0 0) (= ~y~0 25) (= ~e~0 5) (= ~x~0 24) (= ~b~0 2) (= ~a~0 1) (= ~a12~0 8) (= ~a20~0 1) (= ~a16~0 5)) [2018-10-27 12:16:40,067 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 12:16:40,068 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 12:16:40,068 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (and (= ~a8~0 15) (= ~a21~0 1) (= ~a17~0 1) (= ~a7~0 |old(~a7~0)|) (= ~a20~0 1) (= ~a16~0 5)) (not (= ~v~0 22)) (not (= ~u~0 21)) (not (= |old(~a16~0)| 5)) (not (= |old(~a21~0)| 1)) (not (= ~b~0 2)) (not (= ~y~0 25)) (not (= |old(~a7~0)| 0)) (not (= 3 ~c~0)) (not (= |old(~a20~0)| 1)) (not (= ~a~0 1)) (not (= 26 ~z~0)) (not (= ~x~0 24)) (not (= |old(~a17~0)| 1)) (not (= ~a12~0 8)) (not (= ~e~0 5)) (not (= |old(~a8~0)| 15)) (not (= ~d~0 4)) (not (= 6 ~f~0)) (not (= ~w~0 23))) [2018-10-27 12:16:40,068 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2018-10-27 12:16:40,068 INFO L421 ceAbstractionStarter]: At program point L591(line 591) the Hoare annotation is: (or (not (= ~a8~0 13)) (not (= ~a16~0 6)) (= |old(~a20~0)| ~a20~0) (not (= |old(~a21~0)| 1)) (not (= ~b~0 2)) (not (= ~y~0 25)) (not (= ~x~0 24)) (not (= ~a12~0 8)) (not (= ~e~0 5)) (not (= ~d~0 4)) (not (= 21 ~u~0)) (not (= 22 ~v~0)) (and (= 1 ~a7~0) (<= ~a17~0 0) (<= 1 ~a20~0)) (not (= ~z~0 26)) (not (= |old(~a16~0)| 5)) (not (= 0 |old(~a7~0)|)) (not (= 3 ~c~0)) (not (= |old(~a20~0)| 1)) (not (= 23 ~w~0)) (not (= ~a~0 1)) (not (= |old(~a17~0)| 1)) (not (= |old(~a8~0)| 15)) (not (= 6 ~f~0))) [2018-10-27 12:16:40,068 INFO L425 ceAbstractionStarter]: For program point L591-1(line 591) no Hoare annotation was computed. [2018-10-27 12:16:40,068 INFO L425 ceAbstractionStarter]: For program point L588(line 588) no Hoare annotation was computed. [2018-10-27 12:16:40,069 INFO L425 ceAbstractionStarter]: For program point L583-1(lines 583 593) no Hoare annotation was computed. [2018-10-27 12:16:40,069 INFO L421 ceAbstractionStarter]: At program point L583-3(lines 583 593) the Hoare annotation is: (or (not (= ~a8~0 13)) (not (= ~a16~0 6)) (= |old(~a20~0)| ~a20~0) (not (= |old(~a21~0)| 1)) (not (= ~b~0 2)) (not (= ~y~0 25)) (not (= ~x~0 24)) (not (= ~a12~0 8)) (not (= ~e~0 5)) (not (= ~d~0 4)) (not (= 21 ~u~0)) (not (= 22 ~v~0)) (and (= 1 ~a7~0) (<= ~a17~0 0) (<= 1 ~a20~0)) (not (= ~z~0 26)) (not (= |old(~a16~0)| 5)) (not (= 0 |old(~a7~0)|)) (not (= 3 ~c~0)) (not (= |old(~a20~0)| 1)) (not (= 23 ~w~0)) (not (= ~a~0 1)) (not (= |old(~a17~0)| 1)) (not (= |old(~a8~0)| 15)) (not (= 6 ~f~0))) [2018-10-27 12:16:40,069 INFO L425 ceAbstractionStarter]: For program point L583-4(lines 577 594) no Hoare annotation was computed. [2018-10-27 12:16:40,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:16:40 BoogieIcfgContainer [2018-10-27 12:16:40,086 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 12:16:40,086 INFO L168 Benchmark]: Toolchain (without parser) took 100311.79 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 2.5 GB in the end (delta: -1.1 GB). Peak memory consumption was 1.6 GB. Max. memory is 7.1 GB. [2018-10-27 12:16:40,088 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. [2018-10-27 12:16:40,088 INFO L168 Benchmark]: CACSL2BoogieTranslator took 736.17 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-10-27 12:16:40,089 INFO L168 Benchmark]: Boogie Procedure Inliner took 193.20 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -823.0 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. [2018-10-27 12:16:40,090 INFO L168 Benchmark]: Boogie Preprocessor took 83.45 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-27 12:16:40,090 INFO L168 Benchmark]: RCFGBuilder took 3534.36 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: 129.5 MB). Peak memory consumption was 129.5 MB. Max. memory is 7.1 GB. [2018-10-27 12:16:40,091 INFO L168 Benchmark]: TraceAbstraction took 95759.05 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 2.5 GB in the end (delta: -414.6 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. [2018-10-27 12:16:40,096 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 736.17 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 193.20 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 749.2 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -823.0 MB). Peak memory consumption was 19.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 83.45 ms. Allocated memory is still 2.3 GB. Free memory is still 2.2 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 3534.36 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: 129.5 MB). Peak memory consumption was 129.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 95759.05 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 2.5 GB in the end (delta: -414.6 MB). Peak memory consumption was 1.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 488]: 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: 583]: Loop Invariant Derived loop invariant: (((((((((((((((((((((!(a8 == 13) || !(a16 == 6)) || \old(a20) == a20) || !(\old(a21) == 1)) || !(b == 2)) || !(y == 25)) || !(x == 24)) || !(a12 == 8)) || !(e == 5)) || !(d == 4)) || !(21 == u)) || !(22 == v)) || ((1 == a7 && a17 <= 0) && 1 <= a20)) || !(z == 26)) || !(\old(a16) == 5)) || !(0 == \old(a7))) || !(3 == c)) || !(\old(a20) == 1)) || !(23 == w)) || !(a == 1)) || !(\old(a17) == 1)) || !(\old(a8) == 15)) || !(6 == f) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 208 locations, 1 error locations. SAFE Result, 95.6s OverallTime, 9 OverallIterations, 6 TraceHistogramMax, 69.1s AutomataDifference, 0.0s DeadEndRemovalTime, 9.9s HoareAnnotationTime, HoareTripleCheckerStatistics: 1443 SDtfs, 10025 SDslu, 1942 SDs, 0 SdLazy, 14280 SolverSat, 2338 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 25.0s Time, PredicateUnifierStatistics: 8 DeclaredPredicates, 1999 GetRequests, 1827 SyntacticMatches, 7 SemanticMatches, 165 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 885 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7724occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 5.0s AbstIntTime, 6 AbstIntIterations, 4 AbstIntStrong, 0.9967052613445979 AbsIntWeakeningRatio, 0.24550898203592814 AbsIntAvgWeakeningVarsNumRemoved, 24.266467065868262 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 963 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 224 PreInvPairs, 424 NumberOfFragments, 679 HoareAnnotationTreeSize, 224 FomulaSimplifications, 16852 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 10365 FormulaSimplificationTreeSizeReductionInter, 9.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.3s InterpolantComputationTime, 2097 NumberOfCodeBlocks, 2030 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2678 ConstructedInterpolants, 0 QuantifiedInterpolants, 898594 SizeOfPredicates, 4 NumberOfNonLiveVariables, 1584 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 15 InterpolantComputations, 4 PerfectInterpolantSequences, 1695/1911 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...