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/PositiveValue-Safe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 10:30:58,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 10:30:58,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 10:30:58,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 10:30:58,127 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 10:30:58,129 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 10:30:58,130 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 10:30:58,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 10:30:58,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 10:30:58,144 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 10:30:58,146 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 10:30:58,146 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 10:30:58,147 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 10:30:58,148 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 10:30:58,149 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 10:30:58,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 10:30:58,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 10:30:58,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 10:30:58,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 10:30:58,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 10:30:58,156 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 10:30:58,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 10:30:58,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 10:30:58,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 10:30:58,161 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 10:30:58,162 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 10:30:58,162 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 10:30:58,163 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 10:30:58,163 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 10:30:58,164 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 10:30:58,164 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 10:30:58,165 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 10:30:58,166 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 10:30:58,167 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 10:30:58,168 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 10:30:58,168 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 10:30:58,169 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 10:30:58,169 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 10:30:58,169 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 10:30:58,170 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 10:30:58,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 10:30:58,206 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 10:30:58,219 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 10:30:58,224 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 10:30:58,225 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 10:30:58,226 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 10:30:58,228 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/PositiveValue-Safe.bpl [2019-08-05 10:30:58,229 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/PositiveValue-Safe.bpl' [2019-08-05 10:30:58,257 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 10:30:58,259 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 10:30:58,259 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 10:30:58,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 10:30:58,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 10:30:58,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:30:58" (1/1) ... [2019-08-05 10:30:58,286 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:30:58" (1/1) ... [2019-08-05 10:30:58,295 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 10:30:58,295 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 10:30:58,295 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 10:30:58,297 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 10:30:58,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 10:30:58,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 10:30:58,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 10:30:58,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:30:58" (1/1) ... [2019-08-05 10:30:58,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:30:58" (1/1) ... [2019-08-05 10:30:58,312 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:30:58" (1/1) ... [2019-08-05 10:30:58,312 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:30:58" (1/1) ... [2019-08-05 10:30:58,316 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:30:58" (1/1) ... [2019-08-05 10:30:58,319 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:30:58" (1/1) ... [2019-08-05 10:30:58,320 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:30:58" (1/1) ... [2019-08-05 10:30:58,321 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 10:30:58,322 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 10:30:58,322 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 10:30:58,322 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 10:30:58,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:30:58" (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 10:30:58,385 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2019-08-05 10:30:58,385 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 10:30:58,386 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 10:30:58,654 INFO L275 CfgBuilder]: Using library mode [2019-08-05 10:30:58,655 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-08-05 10:30:58,657 INFO L202 PluginConnector]: Adding new model PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:30:58 BoogieIcfgContainer [2019-08-05 10:30:58,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 10:30:58,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 10:30:58,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 10:30:58,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 10:30:58,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 10:30:58" (1/2) ... [2019-08-05 10:30:58,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52d0b3de and model type PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 10:30:58, skipping insertion in model container [2019-08-05 10:30:58,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 10:30:58" (2/2) ... [2019-08-05 10:30:58,667 INFO L109 eAbstractionObserver]: Analyzing ICFG PositiveValue-Safe.bpl [2019-08-05 10:30:58,677 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 10:30:58,686 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 10:30:58,704 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 10:30:58,733 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 10:30:58,734 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 10:30:58,734 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 10:30:58,735 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 10:30:58,735 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 10:30:58,735 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 10:30:58,735 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 10:30:58,735 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 10:30:58,735 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 10:30:58,748 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2019-08-05 10:30:58,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 10:30:58,756 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:30:58,757 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 10:30:58,759 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:30:58,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:30:58,766 INFO L82 PathProgramCache]: Analyzing trace with hash 972, now seen corresponding path program 1 times [2019-08-05 10:30:58,815 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:30:58,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 10:30:58,841 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 2 conjunts are in the unsatisfiable core [2019-08-05 10:30:58,845 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 10:30:58,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 10:30:58,881 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 10:30:58,881 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 10:30:58,885 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 10:30:58,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 10:30:58,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:30:58,898 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states. [2019-08-05 10:30:58,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 10:30:58,967 INFO L93 Difference]: Finished difference Result 5 states and 6 transitions. [2019-08-05 10:30:58,968 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 10:30:58,970 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-08-05 10:30:58,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 10:30:58,997 INFO L225 Difference]: With dead ends: 5 [2019-08-05 10:30:58,998 INFO L226 Difference]: Without dead ends: 4 [2019-08-05 10:30:59,003 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 10:30:59,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states. [2019-08-05 10:30:59,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2019-08-05 10:30:59,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-08-05 10:30:59,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2019-08-05 10:30:59,060 INFO L78 Accepts]: Start accepts. Automaton has 4 states and 4 transitions. Word has length 2 [2019-08-05 10:30:59,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 10:30:59,060 INFO L475 AbstractCegarLoop]: Abstraction has 4 states and 4 transitions. [2019-08-05 10:30:59,060 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 10:30:59,061 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 4 transitions. [2019-08-05 10:30:59,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 10:30:59,061 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 10:30:59,061 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 10:30:59,062 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 10:30:59,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 10:30:59,062 INFO L82 PathProgramCache]: Analyzing trace with hash 30267, now seen corresponding path program 1 times [2019-08-05 10:30:59,064 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 10:30:59,069 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-08-05 10:30:59,069 INFO L285 seRefinementStrategy]: Strategy FixedRefinementStrategy was unsuccessful and could not determine trace feasibility. [2019-08-05 10:30:59,069 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-08-05 10:30:59,080 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2019-08-05 10:30:59,082 WARN L224 RCFGBacktranslator]: unable to determine which branch was taken at Merged: BPL: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/PositiveValue-Safe.bpl:19/4-23/6, Merged: Merged: Merged: Merged: Merged: BPL: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/PositiveValue-Safe.bpl:17/2-25/7, Merged: BPL: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/PositiveValue-Safe.bpl:17/2-25/7, BPL: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/PositiveValue-Safe.bpl:17/2-25/7, BPL: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/PositiveValue-Safe.bpl:17/2-25/7, BPL: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/PositiveValue-Safe.bpl:17/2-25/7, BPL: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/PositiveValue-Safe.bpl:19/4-23/6, BPL: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/nonlinear/PositiveValue-Safe.bpl:19/4-23/6 [2019-08-05 10:30:59,102 WARN L226 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-08-05 10:30:59,104 INFO L202 PluginConnector]: Adding new model PositiveValue-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 10:30:59 BoogieIcfgContainer [2019-08-05 10:30:59,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 10:30:59,110 INFO L168 Benchmark]: Toolchain (without parser) took 847.62 ms. Allocated memory is still 133.7 MB. Free memory was 111.2 MB in the beginning and 79.0 MB in the end (delta: 32.2 MB). Peak memory consumption was 32.2 MB. Max. memory is 7.1 GB. [2019-08-05 10:30:59,112 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.30 ms. Allocated memory is still 133.7 MB. Free memory was 112.5 MB in the beginning and 112.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-08-05 10:30:59,119 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.35 ms. Allocated memory is still 133.7 MB. Free memory was 111.2 MB in the beginning and 109.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. [2019-08-05 10:30:59,121 INFO L168 Benchmark]: Boogie Preprocessor took 23.61 ms. Allocated memory is still 133.7 MB. Free memory was 109.4 MB in the beginning and 108.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 10:30:59,122 INFO L168 Benchmark]: RCFGBuilder took 335.30 ms. Allocated memory is still 133.7 MB. Free memory was 108.1 MB in the beginning and 98.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-08-05 10:30:59,123 INFO L168 Benchmark]: TraceAbstraction took 446.04 ms. Allocated memory is still 133.7 MB. Free memory was 98.5 MB in the beginning and 79.0 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. [2019-08-05 10:30:59,127 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 0.30 ms. Allocated memory is still 133.7 MB. Free memory was 112.5 MB in the beginning and 112.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 38.35 ms. Allocated memory is still 133.7 MB. Free memory was 111.2 MB in the beginning and 109.4 MB in the end (delta: 1.8 MB). Peak memory consumption was 1.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.61 ms. Allocated memory is still 133.7 MB. Free memory was 109.4 MB in the beginning and 108.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 335.30 ms. Allocated memory is still 133.7 MB. Free memory was 108.1 MB in the beginning and 98.7 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 446.04 ms. Allocated memory is still 133.7 MB. Free memory was 98.5 MB in the beginning and 79.0 MB in the end (delta: 19.5 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 26]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L14] assume x == 0; [L15] assume y == 0; [L20] x := x * y; [L26] assert x >= 0; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 4 locations, 1 error locations. UNKNOWN Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2 SDtfs, 1 SDslu, 0 SDs, 0 SdLazy, 4 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 0 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: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 2 NumberOfCodeBlocks, 2 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 1 ConstructedInterpolants, 0 QuantifiedInterpolants, 3 SizeOfPredicates, 0 NumberOfNonLiveVariables, 7 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, 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...