java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-smtinterpol.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/DivisibilityInterpolantRequired01-BackwardSuccess.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 09:49:34,369 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 09:49:34,375 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 09:49:34,397 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 09:49:34,397 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 09:49:34,398 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 09:49:34,400 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 09:49:34,402 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 09:49:34,404 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 09:49:34,405 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 09:49:34,406 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 09:49:34,406 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 09:49:34,407 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 09:49:34,408 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 09:49:34,409 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 09:49:34,410 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 09:49:34,411 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 09:49:34,413 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 09:49:34,415 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 09:49:34,417 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 09:49:34,418 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 09:49:34,419 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 09:49:34,422 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 09:49:34,422 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 09:49:34,422 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 09:49:34,424 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 09:49:34,425 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 09:49:34,426 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 09:49:34,426 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 09:49:34,428 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 09:49:34,428 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 09:49:34,429 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-09-26 09:49:34,429 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-09-26 09:49:34,429 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-09-26 09:49:34,430 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-09-26 09:49:34,431 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-09-26 09:49:34,431 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-smtinterpol.epf [2018-09-26 09:49:34,440 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 09:49:34,441 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 09:49:34,442 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 09:49:34,442 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-09-26 09:49:34,443 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 09:49:34,443 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 09:49:34,443 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-09-26 09:49:34,443 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 09:49:34,497 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 09:49:34,515 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 09:49:34,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 09:49:34,523 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 09:49:34,523 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 09:49:34,524 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/DivisibilityInterpolantRequired01-BackwardSuccess.bpl [2018-09-26 09:49:34,524 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/DivisibilityInterpolantRequired01-BackwardSuccess.bpl' [2018-09-26 09:49:34,563 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 09:49:34,567 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 09:49:34,568 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 09:49:34,568 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 09:49:34,568 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 09:49:34,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:49:34" (1/1) ... [2018-09-26 09:49:34,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:49:34" (1/1) ... [2018-09-26 09:49:34,608 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-26 09:49:34,608 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-26 09:49:34,608 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-26 09:49:34,610 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 09:49:34,612 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 09:49:34,612 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 09:49:34,612 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 09:49:34,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:49:34" (1/1) ... [2018-09-26 09:49:34,625 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:49:34" (1/1) ... [2018-09-26 09:49:34,626 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:49:34" (1/1) ... [2018-09-26 09:49:34,626 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:49:34" (1/1) ... [2018-09-26 09:49:34,628 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:49:34" (1/1) ... [2018-09-26 09:49:34,633 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:49:34" (1/1) ... [2018-09-26 09:49:34,634 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:49:34" (1/1) ... [2018-09-26 09:49:34,635 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 09:49:34,636 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 09:49:34,636 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 09:49:34,636 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 09:49:34,638 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:49:34" (1/1) ... [2018-09-26 09:49:34,729 INFO L130 BoogieDeclarations]: Found specification of procedure proc [2018-09-26 09:49:34,729 INFO L138 BoogieDeclarations]: Found implementation of procedure proc [2018-09-26 09:49:34,859 INFO L343 CfgBuilder]: Using library mode [2018-09-26 09:49:34,860 INFO L202 PluginConnector]: Adding new model DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:49:34 BoogieIcfgContainer [2018-09-26 09:49:34,860 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 09:49:34,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 09:49:34,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 09:49:34,866 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 09:49:34,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:49:34" (1/2) ... [2018-09-26 09:49:34,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38bda12a and model type DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:49:34, skipping insertion in model container [2018-09-26 09:49:34,871 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:49:34" (2/2) ... [2018-09-26 09:49:34,874 INFO L112 eAbstractionObserver]: Analyzing ICFG DivisibilityInterpolantRequired01-BackwardSuccess.bpl [2018-09-26 09:49:34,887 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 09:49:34,897 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 09:49:34,953 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 09:49:34,954 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 09:49:34,954 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 09:49:34,954 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 09:49:34,954 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 09:49:34,955 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 09:49:34,955 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 09:49:34,955 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 09:49:34,955 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 09:49:34,973 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2018-09-26 09:49:34,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-09-26 09:49:34,985 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:49:34,986 INFO L375 BasicCegarLoop]: trace histogram [1, 1] [2018-09-26 09:49:34,987 INFO L423 AbstractCegarLoop]: === Iteration 1 === [procErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:49:34,996 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:49:34,997 INFO L82 PathProgramCache]: Analyzing trace with hash 967, now seen corresponding path program 1 times [2018-09-26 09:49:35,004 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:49:35,092 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:49:35,093 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-09-26 09:49:35,097 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-09-26 09:49:35,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-09-26 09:49:35,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 09:49:35,107 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states. [2018-09-26 09:49:35,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:49:35,138 INFO L93 Difference]: Finished difference Result 4 states and 4 transitions. [2018-09-26 09:49:35,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-09-26 09:49:35,140 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2018-09-26 09:49:35,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:49:35,147 INFO L225 Difference]: With dead ends: 4 [2018-09-26 09:49:35,148 INFO L226 Difference]: Without dead ends: 0 [2018-09-26 09:49:35,152 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-09-26 09:49:35,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-26 09:49:35,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-26 09:49:35,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-26 09:49:35,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-26 09:49:35,178 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 2 [2018-09-26 09:49:35,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:49:35,178 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-26 09:49:35,178 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-09-26 09:49:35,179 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-26 09:49:35,179 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-26 09:49:35,184 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-26 09:49:35,220 INFO L422 ceAbstractionStarter]: At program point L18-1(lines 18 20) the Hoare annotation is: (= 0 (mod proc_a 2)) [2018-09-26 09:49:35,221 INFO L422 ceAbstractionStarter]: At program point procErr0ASSERT_VIOLATIONASSERT(line 21) the Hoare annotation is: false [2018-09-26 09:49:35,221 INFO L422 ceAbstractionStarter]: At program point procEXIT(lines 14 23) the Hoare annotation is: (= 0 (mod proc_a 2)) [2018-09-26 09:49:35,222 INFO L429 ceAbstractionStarter]: At program point procENTRY(lines 14 23) the Hoare annotation is: true [2018-09-26 09:49:35,222 INFO L426 ceAbstractionStarter]: For program point procFINAL(lines 14 23) no Hoare annotation was computed. [2018-09-26 09:49:35,231 INFO L202 PluginConnector]: Adding new model DivisibilityInterpolantRequired01-BackwardSuccess.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 09:49:35 BoogieIcfgContainer [2018-09-26 09:49:35,232 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 09:49:35,233 INFO L168 Benchmark]: Toolchain (without parser) took 668.80 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-26 09:49:35,235 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.17 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:49:35,236 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.38 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:49:35,237 INFO L168 Benchmark]: Boogie Preprocessor took 23.92 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:49:35,238 INFO L168 Benchmark]: RCFGBuilder took 224.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-26 09:49:35,239 INFO L168 Benchmark]: TraceAbstraction took 370.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-26 09:49:35,244 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.17 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. * Boogie Procedure Inliner took 43.38 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. * Boogie Preprocessor took 23.92 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. * RCFGBuilder took 224.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 370.16 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 0 == a % 2 - ProcedureContractResult [Line: 14]: Procedure Contract for proc Derived contract for procedure proc: 0 == a % 2 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 locations, 1 error locations. SAFE Result, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1 SDtfs, 1 SDslu, 0 SDs, 0 SdLazy, 2 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4occurred in iteration=0, 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 12 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s PdrRuntime, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/DivisibilityInterpolantRequired01-BackwardSuccess.bpl_AutomizerBpl-pdr-smtinterpol.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_09-49-35-259.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/DivisibilityInterpolantRequired01-BackwardSuccess.bpl_AutomizerBpl-pdr-smtinterpol.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_09-49-35-259.csv Received shutdown request...