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/abstractInterpretation/regression/all/expr-division-inequality-bug-2.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:13:32,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:13:32,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:13:32,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:13:32,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:13:32,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:13:32,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:13:32,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:13:32,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:13:32,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:13:32,196 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:13:32,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:13:32,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:13:32,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:13:32,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:13:32,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:13:32,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:13:32,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:13:32,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:13:32,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:13:32,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:13:32,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:13:32,210 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:13:32,211 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:13:32,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:13:32,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:13:32,213 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:13:32,214 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:13:32,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:13:32,216 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:13:32,216 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:13:32,217 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:13:32,218 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:13:32,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:13:32,219 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:13:32,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:13:32,220 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:13:32,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:13:32,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:13:32,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:13:32,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:13:32,249 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:13:32,268 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:13:32,272 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:13:32,273 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:13:32,273 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:13:32,274 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/regression/all/expr-division-inequality-bug-2.bpl [2019-08-05 11:13:32,275 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/regression/all/expr-division-inequality-bug-2.bpl' [2019-08-05 11:13:32,303 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:13:32,305 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:13:32,306 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:13:32,306 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:13:32,306 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:13:32,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "expr-division-inequality-bug-2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:32" (1/1) ... [2019-08-05 11:13:32,330 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "expr-division-inequality-bug-2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:32" (1/1) ... [2019-08-05 11:13:32,337 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:13:32,338 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:13:32,339 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:13:32,339 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:13:32,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "expr-division-inequality-bug-2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:32" (1/1) ... [2019-08-05 11:13:32,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "expr-division-inequality-bug-2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:32" (1/1) ... [2019-08-05 11:13:32,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "expr-division-inequality-bug-2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:32" (1/1) ... [2019-08-05 11:13:32,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "expr-division-inequality-bug-2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:32" (1/1) ... [2019-08-05 11:13:32,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "expr-division-inequality-bug-2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:32" (1/1) ... [2019-08-05 11:13:32,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "expr-division-inequality-bug-2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:32" (1/1) ... [2019-08-05 11:13:32,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "expr-division-inequality-bug-2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:32" (1/1) ... [2019-08-05 11:13:32,356 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:13:32,356 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:13:32,357 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:13:32,357 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:13:32,358 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "expr-division-inequality-bug-2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:32" (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 11:13:32,426 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 11:13:32,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 11:13:32,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 11:13:32,599 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 11:13:32,599 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 11:13:32,600 INFO L202 PluginConnector]: Adding new model expr-division-inequality-bug-2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:13:32 BoogieIcfgContainer [2019-08-05 11:13:32,600 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:13:32,602 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:13:32,602 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:13:32,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:13:32,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "expr-division-inequality-bug-2.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:32" (1/2) ... [2019-08-05 11:13:32,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26782c77 and model type expr-division-inequality-bug-2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:13:32, skipping insertion in model container [2019-08-05 11:13:32,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "expr-division-inequality-bug-2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:13:32" (2/2) ... [2019-08-05 11:13:32,609 INFO L109 eAbstractionObserver]: Analyzing ICFG expr-division-inequality-bug-2.bpl [2019-08-05 11:13:32,618 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:13:32,626 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-08-05 11:13:32,642 INFO L252 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-08-05 11:13:32,666 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:13:32,667 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:13:32,667 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:13:32,667 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:13:32,667 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:13:32,668 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:13:32,668 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:13:32,668 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:13:32,668 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:13:32,679 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-05 11:13:32,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 11:13:32,687 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:13:32,688 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 11:13:32,691 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:13:32,696 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:13:32,696 INFO L82 PathProgramCache]: Analyzing trace with hash 962, now seen corresponding path program 1 times [2019-08-05 11:13:32,744 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:13:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:13:32,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 5 conjuncts, 1 conjunts are in the unsatisfiable core [2019-08-05 11:13:32,770 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:13:32,780 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 11:13:32,783 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:13:32,784 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 11:13:32,788 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-08-05 11:13:32,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-08-05 11:13:32,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-08-05 11:13:32,806 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 2 states. [2019-08-05 11:13:32,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:13:32,817 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions. [2019-08-05 11:13:32,817 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-08-05 11:13:32,818 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 2 [2019-08-05 11:13:32,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:13:32,827 INFO L225 Difference]: With dead ends: 4 [2019-08-05 11:13:32,827 INFO L226 Difference]: Without dead ends: 4 [2019-08-05 11:13:32,830 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-08-05 11:13:32,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states. [2019-08-05 11:13:32,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2019-08-05 11:13:32,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-08-05 11:13:32,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3 transitions. [2019-08-05 11:13:32,862 INFO L78 Accepts]: Start accepts. Automaton has 4 states and 3 transitions. Word has length 2 [2019-08-05 11:13:32,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:13:32,863 INFO L475 AbstractCegarLoop]: Abstraction has 4 states and 3 transitions. [2019-08-05 11:13:32,863 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-08-05 11:13:32,863 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2019-08-05 11:13:32,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 11:13:32,864 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:13:32,864 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 11:13:32,864 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr1ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:13:32,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:13:32,865 INFO L82 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2019-08-05 11:13:32,866 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:13:32,872 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-08-05 11:13:32,872 INFO L285 seRefinementStrategy]: Strategy FixedRefinementStrategy was unsuccessful and could not determine trace feasibility. [2019-08-05 11:13:32,873 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-08-05 11:13:32,891 WARN L226 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-08-05 11:13:32,892 INFO L202 PluginConnector]: Adding new model expr-division-inequality-bug-2.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:13:32 BoogieIcfgContainer [2019-08-05 11:13:32,892 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:13:32,895 INFO L168 Benchmark]: Toolchain (without parser) took 589.05 ms. Allocated memory is still 139.5 MB. Free memory was 107.9 MB in the beginning and 77.9 MB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 7.1 GB. [2019-08-05 11:13:32,896 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.84 ms. Allocated memory is still 139.5 MB. Free memory is still 108.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 11:13:32,897 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.36 ms. Allocated memory is still 139.5 MB. Free memory was 107.9 MB in the beginning and 106.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 11:13:32,898 INFO L168 Benchmark]: Boogie Preprocessor took 17.55 ms. Allocated memory is still 139.5 MB. Free memory was 106.2 MB in the beginning and 104.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 11:13:32,899 INFO L168 Benchmark]: RCFGBuilder took 244.20 ms. Allocated memory is still 139.5 MB. Free memory was 104.9 MB in the beginning and 96.0 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-08-05 11:13:32,901 INFO L168 Benchmark]: TraceAbstraction took 290.09 ms. Allocated memory is still 139.5 MB. Free memory was 96.0 MB in the beginning and 77.9 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:13:32,905 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 0.84 ms. Allocated memory is still 139.5 MB. Free memory is still 108.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 32.36 ms. Allocated memory is still 139.5 MB. Free memory was 107.9 MB in the beginning and 106.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 17.55 ms. Allocated memory is still 139.5 MB. Free memory was 106.2 MB in the beginning and 104.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 244.20 ms. Allocated memory is still 139.5 MB. Free memory was 104.9 MB in the beginning and 96.0 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 290.09 ms. Allocated memory is still 139.5 MB. Free memory was 96.0 MB in the beginning and 77.9 MB in the end (delta: 18.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 19]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L15] assume x >= 1 && x <= 10; [L16] assert true; [L17] assume (y % 2 == 0 && !(y == 0)) && -x - x <= -2 && x - -x <= 20; [L18] assume x / y == 5; [L19] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 2 error locations. UNKNOWN Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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, 1 SizeOfPredicates, 0 NumberOfNonLiveVariables, 5 ConjunctsInSsa, 1 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...