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-zero-1.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:13:19,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:13:19,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:13:19,200 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:13:19,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:13:19,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:13:19,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:13:19,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:13:19,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:13:19,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:13:19,207 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:13:19,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:13:19,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:13:19,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:13:19,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:13:19,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:13:19,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:13:19,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:13:19,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:13:19,217 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:13:19,219 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:13:19,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:13:19,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:13:19,222 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:13:19,224 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:13:19,224 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:13:19,224 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:13:19,225 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:13:19,226 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:13:19,227 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:13:19,227 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:13:19,228 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:13:19,229 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:13:19,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:13:19,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:13:19,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:13:19,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:13:19,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:13:19,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:13:19,233 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:13:19,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:13:19,268 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:13:19,280 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:13:19,284 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:13:19,286 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:13:19,286 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:13:19,287 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/regression/all/expr-division-zero-1.bpl [2019-08-05 11:13:19,287 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/abstractInterpretation/regression/all/expr-division-zero-1.bpl' [2019-08-05 11:13:19,313 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:13:19,314 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:13:19,315 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:13:19,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:13:19,315 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:13:19,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "expr-division-zero-1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:19" (1/1) ... [2019-08-05 11:13:19,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "expr-division-zero-1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:19" (1/1) ... [2019-08-05 11:13:19,348 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:13:19,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:13:19,349 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:13:19,349 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:13:19,359 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "expr-division-zero-1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:19" (1/1) ... [2019-08-05 11:13:19,360 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "expr-division-zero-1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:19" (1/1) ... [2019-08-05 11:13:19,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "expr-division-zero-1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:19" (1/1) ... [2019-08-05 11:13:19,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "expr-division-zero-1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:19" (1/1) ... [2019-08-05 11:13:19,363 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "expr-division-zero-1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:19" (1/1) ... [2019-08-05 11:13:19,364 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "expr-division-zero-1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:19" (1/1) ... [2019-08-05 11:13:19,365 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "expr-division-zero-1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:19" (1/1) ... [2019-08-05 11:13:19,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:13:19,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:13:19,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:13:19,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:13:19,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "expr-division-zero-1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:19" (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 11:13:19,437 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2019-08-05 11:13:19,437 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 11:13:19,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 11:13:19,692 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 11:13:19,692 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 11:13:19,693 INFO L202 PluginConnector]: Adding new model expr-division-zero-1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:13:19 BoogieIcfgContainer [2019-08-05 11:13:19,693 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:13:19,695 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:13:19,695 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:13:19,699 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:13:19,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "expr-division-zero-1.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:13:19" (1/2) ... [2019-08-05 11:13:19,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ad45fc3 and model type expr-division-zero-1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:13:19, skipping insertion in model container [2019-08-05 11:13:19,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "expr-division-zero-1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:13:19" (2/2) ... [2019-08-05 11:13:19,705 INFO L109 eAbstractionObserver]: Analyzing ICFG expr-division-zero-1.bpl [2019-08-05 11:13:19,713 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:13:19,721 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-08-05 11:13:19,735 INFO L252 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-08-05 11:13:19,758 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:13:19,759 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:13:19,759 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:13:19,759 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:13:19,760 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:13:19,760 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:13:19,760 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:13:19,760 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:13:19,760 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:13:19,775 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-08-05 11:13:19,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 11:13:19,783 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:13:19,784 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 11:13:19,786 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:13:19,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:13:19,793 INFO L82 PathProgramCache]: Analyzing trace with hash 962, now seen corresponding path program 1 times [2019-08-05 11:13:19,840 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:13:19,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:13:19,866 INFO L256 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 1 conjunts are in the unsatisfiable core [2019-08-05 11:13:19,871 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:13:19,884 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 11:13:19,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:13:19,887 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 11:13:19,891 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-08-05 11:13:19,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-08-05 11:13:19,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-08-05 11:13:19,904 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 2 states. [2019-08-05 11:13:19,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:13:19,914 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-08-05 11:13:19,915 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-08-05 11:13:19,916 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 2 [2019-08-05 11:13:19,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:13:19,926 INFO L225 Difference]: With dead ends: 6 [2019-08-05 11:13:19,927 INFO L226 Difference]: Without dead ends: 5 [2019-08-05 11:13:19,929 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 11:13:19,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2019-08-05 11:13:19,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2019-08-05 11:13:19,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2019-08-05 11:13:19,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 4 transitions. [2019-08-05 11:13:19,959 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 4 transitions. Word has length 2 [2019-08-05 11:13:19,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:13:19,960 INFO L475 AbstractCegarLoop]: Abstraction has 5 states and 4 transitions. [2019-08-05 11:13:19,960 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-08-05 11:13:19,960 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 4 transitions. [2019-08-05 11:13:19,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 11:13:19,961 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:13:19,961 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 11:13:19,962 INFO L418 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:13:19,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:13:19,962 INFO L82 PathProgramCache]: Analyzing trace with hash 925572, now seen corresponding path program 1 times [2019-08-05 11:13:19,963 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:13:19,968 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-08-05 11:13:19,969 INFO L285 seRefinementStrategy]: Strategy FixedRefinementStrategy was unsuccessful and could not determine trace feasibility. [2019-08-05 11:13:19,969 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-08-05 11:13:19,988 WARN L226 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2019-08-05 11:13:19,988 INFO L202 PluginConnector]: Adding new model expr-division-zero-1.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:13:19 BoogieIcfgContainer [2019-08-05 11:13:19,989 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:13:19,992 INFO L168 Benchmark]: Toolchain (without parser) took 676.35 ms. Allocated memory is still 140.5 MB. Free memory was 110.2 MB in the beginning and 79.9 MB in the end (delta: 30.3 MB). Peak memory consumption was 30.3 MB. Max. memory is 7.1 GB. [2019-08-05 11:13:19,993 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 140.5 MB. Free memory is still 111.0 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 11:13:19,994 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.16 ms. Allocated memory is still 140.5 MB. Free memory was 110.2 MB in the beginning and 108.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-08-05 11:13:19,995 INFO L168 Benchmark]: Boogie Preprocessor took 17.57 ms. Allocated memory is still 140.5 MB. Free memory was 108.5 MB in the beginning and 107.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 11:13:19,997 INFO L168 Benchmark]: RCFGBuilder took 327.13 ms. Allocated memory is still 140.5 MB. Free memory was 107.2 MB in the beginning and 98.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-08-05 11:13:19,998 INFO L168 Benchmark]: TraceAbstraction took 294.11 ms. Allocated memory is still 140.5 MB. Free memory was 98.0 MB in the beginning and 79.9 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. [2019-08-05 11:13:20,002 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 140.5 MB. Free memory is still 111.0 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 33.16 ms. Allocated memory is still 140.5 MB. Free memory was 110.2 MB in the beginning and 108.5 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 17.57 ms. Allocated memory is still 140.5 MB. Free memory was 108.5 MB in the beginning and 107.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 327.13 ms. Allocated memory is still 140.5 MB. Free memory was 107.2 MB in the beginning and 98.0 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 294.11 ms. Allocated memory is still 140.5 MB. Free memory was 98.0 MB in the beginning and 79.9 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L8] assume x == 1 && y <= 1 && y >= -1; [L9] assert true; [L10] z := x / y; [L11] assert true; [L12] assert z >= -1 && z <= 2; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 3 error locations. UNKNOWN Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 5 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=8occurred 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, 7 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...