java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/programs/toy/nonlinear/NonlinearInvariant1-Safe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 10:31:01,236 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 10:31:01,238 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 10:31:01,256 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 10:31:01,256 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 10:31:01,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 10:31:01,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 10:31:01,262 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 10:31:01,264 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 10:31:01,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 10:31:01,266 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 10:31:01,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 10:31:01,267 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 10:31:01,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 10:31:01,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 10:31:01,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 10:31:01,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 10:31:01,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 10:31:01,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 10:31:01,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 10:31:01,278 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 10:31:01,279 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 10:31:01,286 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 10:31:01,287 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 10:31:01,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 10:31:01,289 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 10:31:01,289 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 10:31:01,290 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 10:31:01,291 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 10:31:01,292 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 10:31:01,292 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 10:31:01,294 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 10:31:01,295 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 10:31:01,296 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 10:31:01,297 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 10:31:01,297 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 10:31:01,298 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 10:31:01,298 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 10:31:01,298 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 10:31:01,299 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 10:31:01,300 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 10:31:01,335 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 10:31:01,349 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 10:31:01,352 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 10:31:01,354 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 10:31:01,354 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 10:31:01,355 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/NonlinearInvariant1-Safe.bpl [2019-08-05 10:31:01,355 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/NonlinearInvariant1-Safe.bpl' [2019-08-05 10:31:01,383 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 10:31:01,384 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 10:31:01,385 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 10:31:01,385 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 10:31:01,385 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 10:31:01,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:31:01" (1/1) ... [2019-08-05 10:31:01,411 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:31:01" (1/1) ... [2019-08-05 10:31:01,418 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 10:31:01,419 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 10:31:01,419 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 10:31:01,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 10:31:01,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 10:31:01,422 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 10:31:01,422 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 10:31:01,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:31:01" (1/1) ... [2019-08-05 10:31:01,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:31:01" (1/1) ... [2019-08-05 10:31:01,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:31:01" (1/1) ... [2019-08-05 10:31:01,435 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:31:01" (1/1) ... [2019-08-05 10:31:01,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:31:01" (1/1) ... [2019-08-05 10:31:01,444 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:31:01" (1/1) ... [2019-08-05 10:31:01,445 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:31:01" (1/1) ... [2019-08-05 10:31:01,447 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 10:31:01,447 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 10:31:01,448 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 10:31:01,448 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 10:31:01,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:31:01" (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:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-08-05 10:31:01,519 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-05 10:31:01,519 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 10:31:01,520 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 10:31:01,598 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-05 10:31:01,937 INFO L275 CfgBuilder]: Using library mode [2019-08-05 10:31:01,937 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-05 10:31:01,939 INFO L202 PluginConnector]: Adding new model NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:31:01 BoogieIcfgContainer [2019-08-05 10:31:01,939 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 10:31:01,940 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 10:31:01,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 10:31:01,946 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 10:31:01,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:31:01" (1/2) ... [2019-08-05 10:31:01,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@522f6e70 and model type NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 10:31:01, skipping insertion in model container [2019-08-05 10:31:01,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:31:01" (2/2) ... [2019-08-05 10:31:01,951 INFO L109 eAbstractionObserver]: Analyzing ICFG NonlinearInvariant1-Safe.bpl [2019-08-05 10:31:01,974 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 10:31:01,986 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 10:31:02,010 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 10:31:02,043 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 10:31:02,044 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 10:31:02,047 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 10:31:02,047 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 10:31:02,048 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 10:31:02,048 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 10:31:02,048 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 10:31:02,048 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 10:31:02,049 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 10:31:02,075 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2019-08-05 10:31:02,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 10:31:02,085 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:31:02,086 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 10:31:02,089 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2019-08-05 10:31:02,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:31:02,098 INFO L82 PathProgramCache]: Analyzing trace with hash 50550, now seen corresponding path program 1 times [2019-08-05 10:31:02,149 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:31:02,166 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-08-05 10:31:02,167 INFO L285 seRefinementStrategy]: Strategy FixedRefinementStrategy was unsuccessful and could not determine trace feasibility. [2019-08-05 10:31:02,167 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-08-05 10:31:02,177 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures out1 * out2 > 0; is not ensure(true) [2019-08-05 10:31:02,183 WARN L226 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-08-05 10:31:02,184 INFO L202 PluginConnector]: Adding new model NonlinearInvariant1-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 10:31:02 BoogieIcfgContainer [2019-08-05 10:31:02,184 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 10:31:02,187 INFO L168 Benchmark]: Toolchain (without parser) took 801.59 ms. Allocated memory is still 135.3 MB. Free memory was 111.6 MB in the beginning and 86.8 MB in the end (delta: 24.8 MB). Peak memory consumption was 24.8 MB. Max. memory is 7.1 GB. [2019-08-05 10:31:02,188 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 135.3 MB. Free memory was 112.9 MB in the beginning and 112.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-08-05 10:31:02,190 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.35 ms. Allocated memory is still 135.3 MB. Free memory was 111.6 MB in the beginning and 109.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-08-05 10:31:02,191 INFO L168 Benchmark]: Boogie Preprocessor took 25.24 ms. Allocated memory is still 135.3 MB. Free memory was 109.8 MB in the beginning and 108.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 10:31:02,192 INFO L168 Benchmark]: RCFGBuilder took 491.56 ms. Allocated memory is still 135.3 MB. Free memory was 108.5 MB in the beginning and 97.5 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-08-05 10:31:02,193 INFO L168 Benchmark]: TraceAbstraction took 243.89 ms. Allocated memory is still 135.3 MB. Free memory was 97.1 MB in the beginning and 86.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. [2019-08-05 10:31:02,198 INFO L335 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 0.22 ms. Allocated memory is still 135.3 MB. Free memory was 112.9 MB in the beginning and 112.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 36.35 ms. Allocated memory is still 135.3 MB. Free memory was 111.6 MB in the beginning and 109.8 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.24 ms. Allocated memory is still 135.3 MB. Free memory was 109.8 MB in the beginning and 108.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 491.56 ms. Allocated memory is still 135.3 MB. Free memory was 108.5 MB in the beginning and 97.5 MB in the end (delta: 11.0 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 243.89 ms. Allocated memory is still 135.3 MB. Free memory was 97.1 MB in the beginning and 86.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 10.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures out1 * out2 > 0; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 15]: Unable to prove that procedure postcondition always holds Unable to prove that procedure postcondition always holds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L15-L16] requires in1 * in2 > 0; [L21] tmp1 := in1; [L22] tmp2 := in2; [L35] out1 := tmp1; [L36] out2 := tmp2; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 5 locations, 1 error locations. UNKNOWN Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: No data available, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...