./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loops/sum01_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/loops/sum01_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3ef497a13bffaa6a3ec01f2d87f935fee9ff2c5a ......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 05:41:57,709 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 05:41:57,715 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 05:41:57,727 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 05:41:57,728 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 05:41:57,729 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 05:41:57,730 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 05:41:57,732 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 05:41:57,734 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 05:41:57,735 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 05:41:57,736 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 05:41:57,736 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 05:41:57,737 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 05:41:57,738 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 05:41:57,739 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 05:41:57,740 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 05:41:57,740 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 05:41:57,742 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 05:41:57,744 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 05:41:57,746 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 05:41:57,747 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 05:41:57,748 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 05:41:57,751 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 05:41:57,751 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 05:41:57,751 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 05:41:57,752 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 05:41:57,754 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 05:41:57,755 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 05:41:57,755 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 05:41:57,757 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 05:41:57,757 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 05:41:57,760 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 05:41:57,760 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 05:41:57,760 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 05:41:57,762 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 05:41:57,762 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 05:41:57,763 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 05:41:57,783 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 05:41:57,784 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 05:41:57,785 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 05:41:57,785 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 05:41:57,785 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 05:41:57,786 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 05:41:57,786 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 05:41:57,786 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 05:41:57,786 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 05:41:57,786 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 05:41:57,786 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 05:41:57,787 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 05:41:57,787 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 05:41:57,787 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 05:41:57,787 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 05:41:57,787 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 05:41:57,787 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 05:41:57,788 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 05:41:57,788 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 05:41:57,788 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 05:41:57,788 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 05:41:57,788 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 05:41:57,789 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 05:41:57,789 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 05:41:57,789 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 05:41:57,789 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 05:41:57,789 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 05:41:57,789 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 05:41:57,790 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3ef497a13bffaa6a3ec01f2d87f935fee9ff2c5a [2018-12-31 05:41:57,825 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 05:41:57,839 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 05:41:57,844 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 05:41:57,847 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 05:41:57,847 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 05:41:57,849 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/sum01_true-unreach-call_true-termination.i [2018-12-31 05:41:57,904 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/963d27674/da98b8381e54477994262593f73ce2fb/FLAG6908d44b3 [2018-12-31 05:41:58,348 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 05:41:58,349 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/sum01_true-unreach-call_true-termination.i [2018-12-31 05:41:58,354 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/963d27674/da98b8381e54477994262593f73ce2fb/FLAG6908d44b3 [2018-12-31 05:41:58,702 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/963d27674/da98b8381e54477994262593f73ce2fb [2018-12-31 05:41:58,708 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 05:41:58,710 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 05:41:58,711 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 05:41:58,711 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 05:41:58,718 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 05:41:58,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 05:41:58" (1/1) ... [2018-12-31 05:41:58,722 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10ab9922 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:41:58, skipping insertion in model container [2018-12-31 05:41:58,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 05:41:58" (1/1) ... [2018-12-31 05:41:58,733 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 05:41:58,754 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 05:41:58,992 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 05:41:59,001 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 05:41:59,021 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 05:41:59,036 INFO L195 MainTranslator]: Completed translation [2018-12-31 05:41:59,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:41:59 WrapperNode [2018-12-31 05:41:59,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 05:41:59,038 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 05:41:59,038 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 05:41:59,038 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 05:41:59,046 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:41:59" (1/1) ... [2018-12-31 05:41:59,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:41:59" (1/1) ... [2018-12-31 05:41:59,072 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 05:41:59,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 05:41:59,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 05:41:59,072 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 05:41:59,083 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:41:59" (1/1) ... [2018-12-31 05:41:59,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:41:59" (1/1) ... [2018-12-31 05:41:59,084 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:41:59" (1/1) ... [2018-12-31 05:41:59,084 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:41:59" (1/1) ... [2018-12-31 05:41:59,086 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:41:59" (1/1) ... [2018-12-31 05:41:59,094 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:41:59" (1/1) ... [2018-12-31 05:41:59,095 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:41:59" (1/1) ... [2018-12-31 05:41:59,097 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 05:41:59,098 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 05:41:59,098 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 05:41:59,098 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 05:41:59,099 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:41:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 05:41:59,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 05:41:59,234 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 05:41:59,428 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 05:41:59,429 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-31 05:41:59,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:41:59 BoogieIcfgContainer [2018-12-31 05:41:59,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 05:41:59,431 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 05:41:59,432 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 05:41:59,435 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 05:41:59,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 05:41:58" (1/3) ... [2018-12-31 05:41:59,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48fac3d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 05:41:59, skipping insertion in model container [2018-12-31 05:41:59,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 05:41:59" (2/3) ... [2018-12-31 05:41:59,437 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48fac3d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 05:41:59, skipping insertion in model container [2018-12-31 05:41:59,437 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:41:59" (3/3) ... [2018-12-31 05:41:59,439 INFO L112 eAbstractionObserver]: Analyzing ICFG sum01_true-unreach-call_true-termination.i [2018-12-31 05:41:59,450 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 05:41:59,458 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 05:41:59,475 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 05:41:59,506 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 05:41:59,507 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 05:41:59,507 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 05:41:59,507 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 05:41:59,507 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 05:41:59,507 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 05:41:59,507 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 05:41:59,508 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 05:41:59,508 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 05:41:59,524 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2018-12-31 05:41:59,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-31 05:41:59,530 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 05:41:59,531 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-12-31 05:41:59,534 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 05:41:59,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 05:41:59,540 INFO L82 PathProgramCache]: Analyzing trace with hash 922230154, now seen corresponding path program 1 times [2018-12-31 05:41:59,543 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 05:41:59,543 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 05:41:59,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:41:59,595 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 05:41:59,595 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:41:59,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 05:41:59,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 05:41:59,661 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 05:41:59,661 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 05:41:59,666 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 05:41:59,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 05:41:59,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 05:41:59,685 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 2 states. [2018-12-31 05:41:59,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 05:41:59,702 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2018-12-31 05:41:59,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 05:41:59,703 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 6 [2018-12-31 05:41:59,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 05:41:59,711 INFO L225 Difference]: With dead ends: 18 [2018-12-31 05:41:59,712 INFO L226 Difference]: Without dead ends: 8 [2018-12-31 05:41:59,715 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 05:41:59,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-12-31 05:41:59,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-12-31 05:41:59,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-12-31 05:41:59,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2018-12-31 05:41:59,744 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 6 [2018-12-31 05:41:59,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 05:41:59,744 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2018-12-31 05:41:59,744 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 05:41:59,744 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2018-12-31 05:41:59,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-12-31 05:41:59,745 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 05:41:59,745 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-12-31 05:41:59,745 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 05:41:59,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 05:41:59,746 INFO L82 PathProgramCache]: Analyzing trace with hash 922051408, now seen corresponding path program 1 times [2018-12-31 05:41:59,746 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 05:41:59,746 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 05:41:59,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:41:59,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 05:41:59,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:41:59,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 05:41:59,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 05:41:59,905 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 05:41:59,905 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 05:41:59,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-31 05:41:59,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-31 05:41:59,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-31 05:41:59,915 INFO L87 Difference]: Start difference. First operand 8 states and 8 transitions. Second operand 4 states. [2018-12-31 05:42:00,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 05:42:00,021 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2018-12-31 05:42:00,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-31 05:42:00,022 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-12-31 05:42:00,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 05:42:00,023 INFO L225 Difference]: With dead ends: 13 [2018-12-31 05:42:00,023 INFO L226 Difference]: Without dead ends: 9 [2018-12-31 05:42:00,024 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-31 05:42:00,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2018-12-31 05:42:00,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2018-12-31 05:42:00,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-12-31 05:42:00,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2018-12-31 05:42:00,028 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 6 [2018-12-31 05:42:00,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 05:42:00,029 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2018-12-31 05:42:00,029 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-31 05:42:00,030 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2018-12-31 05:42:00,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-31 05:42:00,031 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 05:42:00,031 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 05:42:00,031 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 05:42:00,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 05:42:00,032 INFO L82 PathProgramCache]: Analyzing trace with hash 1381372562, now seen corresponding path program 1 times [2018-12-31 05:42:00,033 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 05:42:00,033 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 05:42:00,034 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:42:00,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 05:42:00,035 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:42:00,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 05:42:00,655 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 05:42:00,655 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-31 05:42:00,655 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-31 05:42:00,677 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 05:42:00,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 05:42:00,707 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 05:42:01,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 05:42:01,076 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-31 05:42:01,076 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2018-12-31 05:42:01,077 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-31 05:42:01,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-31 05:42:01,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2018-12-31 05:42:01,078 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 12 states. [2018-12-31 05:42:01,523 WARN L181 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2018-12-31 05:42:01,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 05:42:01,879 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2018-12-31 05:42:01,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-31 05:42:01,881 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 8 [2018-12-31 05:42:01,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 05:42:01,882 INFO L225 Difference]: With dead ends: 19 [2018-12-31 05:42:01,882 INFO L226 Difference]: Without dead ends: 13 [2018-12-31 05:42:01,884 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2018-12-31 05:42:01,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-12-31 05:42:01,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-12-31 05:42:01,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-12-31 05:42:01,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-12-31 05:42:01,888 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 8 [2018-12-31 05:42:01,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 05:42:01,889 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-12-31 05:42:01,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-31 05:42:01,889 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-12-31 05:42:01,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2018-12-31 05:42:01,890 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 05:42:01,891 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1] [2018-12-31 05:42:01,891 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 05:42:01,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 05:42:01,892 INFO L82 PathProgramCache]: Analyzing trace with hash 693843862, now seen corresponding path program 2 times [2018-12-31 05:42:01,892 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 05:42:01,892 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 05:42:01,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:42:01,894 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 05:42:01,894 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 05:42:01,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 05:42:02,232 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2018-12-31 05:42:02,232 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-31 05:42:02,232 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-31 05:42:02,245 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-31 05:42:02,269 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-31 05:42:02,269 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-31 05:42:02,271 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 05:42:02,591 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 05:42:02,611 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-31 05:42:02,612 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 16 [2018-12-31 05:42:02,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2018-12-31 05:42:02,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2018-12-31 05:42:02,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=224, Unknown=0, NotChecked=0, Total=272 [2018-12-31 05:42:02,613 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 17 states. [2018-12-31 05:42:03,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 05:42:03,129 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2018-12-31 05:42:03,129 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2018-12-31 05:42:03,129 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 12 [2018-12-31 05:42:03,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 05:42:03,130 INFO L225 Difference]: With dead ends: 17 [2018-12-31 05:42:03,130 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 05:42:03,131 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=131, Invalid=625, Unknown=0, NotChecked=0, Total=756 [2018-12-31 05:42:03,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 05:42:03,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 05:42:03,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 05:42:03,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 05:42:03,132 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2018-12-31 05:42:03,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 05:42:03,132 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 05:42:03,132 INFO L481 AbstractCegarLoop]: Interpolant automaton has 17 states. [2018-12-31 05:42:03,132 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 05:42:03,133 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 05:42:03,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 05:42:03,246 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 05:42:03,247 INFO L448 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-12-31 05:42:03,247 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-12-31 05:42:03,247 INFO L448 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-12-31 05:42:03,247 INFO L451 ceAbstractionStarter]: At program point L5-2(lines 1 18) the Hoare annotation is: true [2018-12-31 05:42:03,247 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 05:42:03,248 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 05:42:03,248 INFO L448 ceAbstractionStarter]: For program point L14-2(lines 14 16) no Hoare annotation was computed. [2018-12-31 05:42:03,248 INFO L444 ceAbstractionStarter]: At program point L14-3(lines 14 16) the Hoare annotation is: (or (let ((.cse1 (* 2 ULTIMATE.start_main_~i~0)) (.cse0 (+ ULTIMATE.start_main_~sn~0 2))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (< ULTIMATE.start_main_~sn~0 (+ (* 2 ULTIMATE.start_main_~n~0) 1)))) (and (= ULTIMATE.start_main_~sn~0 0) (= ULTIMATE.start_main_~i~0 1))) [2018-12-31 05:42:03,248 INFO L448 ceAbstractionStarter]: For program point L14-4(lines 14 16) no Hoare annotation was computed. [2018-12-31 05:42:03,248 INFO L448 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-12-31 05:42:03,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 05:42:03 BoogieIcfgContainer [2018-12-31 05:42:03,264 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 05:42:03,264 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 05:42:03,264 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 05:42:03,265 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 05:42:03,265 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 05:41:59" (3/4) ... [2018-12-31 05:42:03,269 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 05:42:03,281 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-31 05:42:03,281 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-31 05:42:03,331 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 05:42:03,331 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 05:42:03,332 INFO L168 Benchmark]: Toolchain (without parser) took 4623.57 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 950.0 MB in the beginning and 910.3 MB in the end (delta: 39.8 MB). Peak memory consumption was 173.5 MB. Max. memory is 11.5 GB. [2018-12-31 05:42:03,334 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 05:42:03,334 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.41 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 939.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 05:42:03,335 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.18 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 05:42:03,336 INFO L168 Benchmark]: Boogie Preprocessor took 25.03 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 05:42:03,336 INFO L168 Benchmark]: RCFGBuilder took 332.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -164.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-12-31 05:42:03,337 INFO L168 Benchmark]: TraceAbstraction took 3832.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 916.9 MB in the end (delta: 186.9 MB). Peak memory consumption was 186.9 MB. Max. memory is 11.5 GB. [2018-12-31 05:42:03,338 INFO L168 Benchmark]: Witness Printer took 67.01 ms. Allocated memory is still 1.2 GB. Free memory was 916.9 MB in the beginning and 910.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-31 05:42:03,342 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 326.41 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 939.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.18 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 25.03 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 332.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -164.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3832.40 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 916.9 MB in the end (delta: 186.9 MB). Peak memory consumption was 186.9 MB. Max. memory is 11.5 GB. * Witness Printer took 67.01 ms. Allocated memory is still 1.2 GB. Free memory was 916.9 MB in the beginning and 910.3 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 14]: Loop Invariant Derived loop invariant: ((sn + 2 <= 2 * i && 2 * i <= sn + 2) && sn < 2 * n + 1) || (sn == 0 && i == 1) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. SAFE Result, 3.7s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 1.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 24 SDtfs, 23 SDslu, 24 SDs, 0 SdLazy, 139 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 10 SyntacticMatches, 4 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 31 HoareAnnotationTreeSize, 2 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 53 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 3604 SizeOfPredicates, 10 NumberOfNonLiveVariables, 60 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 4/20 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...