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/Mult1-Safe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 10:31:01,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 10:31:01,527 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 10:31:01,542 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 10:31:01,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 10:31:01,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 10:31:01,545 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 10:31:01,547 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 10:31:01,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 10:31:01,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 10:31:01,551 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 10:31:01,551 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 10:31:01,551 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 10:31:01,552 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 10:31:01,553 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 10:31:01,555 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 10:31:01,556 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 10:31:01,557 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 10:31:01,558 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 10:31:01,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 10:31:01,562 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 10:31:01,563 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 10:31:01,566 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 10:31:01,567 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 10:31:01,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 10:31:01,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 10:31:01,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 10:31:01,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 10:31:01,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 10:31:01,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 10:31:01,573 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 10:31:01,574 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 10:31:01,574 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 10:31:01,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 10:31:01,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 10:31:01,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 10:31:01,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 10:31:01,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 10:31:01,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 10:31:01,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 10:31:01,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 10:31:01,614 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 10:31:01,632 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 10:31:01,637 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 10:31:01,638 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 10:31:01,639 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 10:31:01,640 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/Mult1-Safe.bpl [2019-08-05 10:31:01,640 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/Mult1-Safe.bpl' [2019-08-05 10:31:01,673 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 10:31:01,674 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 10:31:01,675 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 10:31:01,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 10:31:01,676 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 10:31:01,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:31:01" (1/1) ... [2019-08-05 10:31:01,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:31:01" (1/1) ... [2019-08-05 10:31:01,716 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 10:31:01,716 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 10:31:01,717 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 10:31:01,719 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 10:31:01,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 10:31:01,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 10:31:01,720 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 10:31:01,732 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:31:01" (1/1) ... [2019-08-05 10:31:01,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:31:01" (1/1) ... [2019-08-05 10:31:01,733 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:31:01" (1/1) ... [2019-08-05 10:31:01,734 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:31:01" (1/1) ... [2019-08-05 10:31:01,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:31:01" (1/1) ... [2019-08-05 10:31:01,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:31:01" (1/1) ... [2019-08-05 10:31:01,745 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:31:01" (1/1) ... [2019-08-05 10:31:01,746 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 10:31:01,747 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 10:31:01,747 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 10:31:01,747 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 10:31:01,750 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Mult1-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 10:31:01,829 INFO L124 BoogieDeclarations]: Specification and implementation of procedure mult given in one single declaration [2019-08-05 10:31:01,829 INFO L130 BoogieDeclarations]: Found specification of procedure mult [2019-08-05 10:31:01,830 INFO L138 BoogieDeclarations]: Found implementation of procedure mult [2019-08-05 10:31:01,901 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-05 10:31:02,103 INFO L275 CfgBuilder]: Using library mode [2019-08-05 10:31:02,103 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 10:31:02,104 INFO L202 PluginConnector]: Adding new model Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:31:02 BoogieIcfgContainer [2019-08-05 10:31:02,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 10:31:02,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 10:31:02,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 10:31:02,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 10:31:02,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:31:01" (1/2) ... [2019-08-05 10:31:02,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c3f9557 and model type Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 10:31:02, skipping insertion in model container [2019-08-05 10:31:02,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:31:02" (2/2) ... [2019-08-05 10:31:02,115 INFO L109 eAbstractionObserver]: Analyzing ICFG Mult1-Safe.bpl [2019-08-05 10:31:02,126 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 10:31:02,135 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 10:31:02,154 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 10:31:02,183 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 10:31:02,183 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 10:31:02,184 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 10:31:02,184 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 10:31:02,184 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 10:31:02,184 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 10:31:02,184 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 10:31:02,185 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 10:31:02,185 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 10:31:02,200 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states. [2019-08-05 10:31:02,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 10:31:02,213 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:31:02,214 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 10:31:02,217 INFO L418 AbstractCegarLoop]: === Iteration 1 === [multErr0ENSURES_VIOLATIONPOST_CONDITION]=== [2019-08-05 10:31:02,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:31:02,224 INFO L82 PathProgramCache]: Analyzing trace with hash 39627, now seen corresponding path program 1 times [2019-08-05 10:31:02,272 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:31:02,301 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-08-05 10:31:02,301 INFO L285 seRefinementStrategy]: Strategy FixedRefinementStrategy was unsuccessful and could not determine trace feasibility. [2019-08-05 10:31:02,301 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-08-05 10:31:02,313 WARN L417 cessorBacktranslator]: Generated EnsuresSpecification ensures res == a * b; is not ensure(true) [2019-08-05 10:31:02,318 WARN L226 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-08-05 10:31:02,319 INFO L202 PluginConnector]: Adding new model Mult1-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 10:31:02 BoogieIcfgContainer [2019-08-05 10:31:02,319 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 10:31:02,322 INFO L168 Benchmark]: Toolchain (without parser) took 646.53 ms. Allocated memory is still 141.0 MB. Free memory was 110.7 MB in the beginning and 87.5 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2019-08-05 10:31:02,323 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 141.0 MB. Free memory was 111.8 MB in the beginning and 111.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 10:31:02,325 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.25 ms. Allocated memory is still 141.0 MB. Free memory was 110.5 MB in the beginning and 108.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 10:31:02,326 INFO L168 Benchmark]: Boogie Preprocessor took 26.30 ms. Allocated memory is still 141.0 MB. Free memory was 108.8 MB in the beginning and 107.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-08-05 10:31:02,327 INFO L168 Benchmark]: RCFGBuilder took 358.23 ms. Allocated memory is still 141.0 MB. Free memory was 107.4 MB in the beginning and 98.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2019-08-05 10:31:02,328 INFO L168 Benchmark]: TraceAbstraction took 212.76 ms. Allocated memory is still 141.0 MB. Free memory was 98.0 MB in the beginning and 87.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2019-08-05 10:31:02,333 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 141.0 MB. Free memory was 111.8 MB in the beginning and 111.6 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 44.25 ms. Allocated memory is still 141.0 MB. Free memory was 110.5 MB in the beginning and 108.8 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.30 ms. Allocated memory is still 141.0 MB. Free memory was 108.8 MB in the beginning and 107.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 358.23 ms. Allocated memory is still 141.0 MB. Free memory was 107.4 MB in the beginning and 98.2 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 212.76 ms. Allocated memory is still 141.0 MB. Free memory was 98.0 MB in the beginning and 87.5 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures res == a * b; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 9]: 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: [L9-L10] requires b >= 0; [L15] res := 0; [L16] tmp := b; [L18] COND FALSE !(tmp > 0) - 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...