java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/underapprox2.i_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 09:39:55,427 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 09:39:55,431 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 09:39:55,443 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 09:39:55,443 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 09:39:55,444 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 09:39:55,446 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 09:39:55,447 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 09:39:55,449 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 09:39:55,450 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 09:39:55,451 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 09:39:55,451 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 09:39:55,452 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 09:39:55,453 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 09:39:55,454 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 09:39:55,455 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 09:39:55,456 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 09:39:55,457 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 09:39:55,459 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 09:39:55,461 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 09:39:55,462 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 09:39:55,463 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 09:39:55,465 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 09:39:55,466 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 09:39:55,466 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 09:39:55,467 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 09:39:55,468 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 09:39:55,469 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 09:39:55,470 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 09:39:55,471 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 09:39:55,471 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 09:39:55,472 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-25 09:39:55,472 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-25 09:39:55,472 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-25 09:39:55,473 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-25 09:39:55,474 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-25 09:39:55,474 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr.epf [2018-07-25 09:39:55,487 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 09:39:55,487 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 09:39:55,490 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 09:39:55,490 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 09:39:55,490 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 09:39:55,490 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 09:39:55,542 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 09:39:55,558 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 09:39:55,562 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 09:39:55,563 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 09:39:55,564 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 09:39:55,564 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/underapprox2.i_3.bpl [2018-07-25 09:39:55,565 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/underapprox2.i_3.bpl' [2018-07-25 09:39:55,607 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 09:39:55,608 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 09:39:55,609 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 09:39:55,609 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 09:39:55,609 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 09:39:55,632 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:39:55" (1/1) ... [2018-07-25 09:39:55,644 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:39:55" (1/1) ... [2018-07-25 09:39:55,650 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 09:39:55,651 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 09:39:55,651 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 09:39:55,651 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 09:39:55,663 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:39:55" (1/1) ... [2018-07-25 09:39:55,663 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:39:55" (1/1) ... [2018-07-25 09:39:55,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:39:55" (1/1) ... [2018-07-25 09:39:55,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:39:55" (1/1) ... [2018-07-25 09:39:55,668 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:39:55" (1/1) ... [2018-07-25 09:39:55,670 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:39:55" (1/1) ... [2018-07-25 09:39:55,670 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:39:55" (1/1) ... [2018-07-25 09:39:55,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 09:39:55,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 09:39:55,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 09:39:55,672 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 09:39:55,673 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:39:55" (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 [2018-07-25 09:39:55,744 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 09:39:55,744 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 09:39:55,881 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 09:39:55,881 INFO L202 PluginConnector]: Adding new model underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 09:39:55 BoogieIcfgContainer [2018-07-25 09:39:55,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 09:39:55,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 09:39:55,883 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 09:39:55,886 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 09:39:55,887 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:39:55" (1/2) ... [2018-07-25 09:39:55,888 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77e7c578 and model type underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 09:39:55, skipping insertion in model container [2018-07-25 09:39:55,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 09:39:55" (2/2) ... [2018-07-25 09:39:55,890 INFO L112 eAbstractionObserver]: Analyzing ICFG underapprox2.i_3.bpl [2018-07-25 09:39:55,900 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 09:39:55,908 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 09:39:55,950 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 09:39:55,951 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 09:39:55,951 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 09:39:55,951 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 09:39:55,952 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 09:39:55,952 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 09:39:55,952 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 09:39:55,952 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 09:39:55,952 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 09:39:55,967 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-25 09:39:55,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 09:39:55,975 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 09:39:55,976 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 09:39:55,978 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 09:39:55,983 INFO L82 PathProgramCache]: Analyzing trace with hash 925639, now seen corresponding path program 1 times [2018-07-25 09:39:55,989 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 09:39:56,223 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 09:39:56,224 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 09:39:56,228 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 09:39:56,235 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 09:39:56,236 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 09:39:56,239 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2018-07-25 09:39:56,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 09:39:56,292 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-25 09:39:56,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 09:39:56,294 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-07-25 09:39:56,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 09:39:56,305 INFO L225 Difference]: With dead ends: 10 [2018-07-25 09:39:56,306 INFO L226 Difference]: Without dead ends: 7 [2018-07-25 09:39:56,309 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 09:39:56,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-25 09:39:56,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-25 09:39:56,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-25 09:39:56,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-25 09:39:56,346 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-25 09:39:56,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 09:39:56,346 INFO L472 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-25 09:39:56,347 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 09:39:56,347 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-25 09:39:56,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 09:39:56,348 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 09:39:56,348 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-25 09:39:56,348 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 09:39:56,349 INFO L82 PathProgramCache]: Analyzing trace with hash 889591169, now seen corresponding path program 1 times [2018-07-25 09:39:56,349 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 09:39:58,800 INFO L420 BasicCegarLoop]: Counterexample might be feasible [2018-07-25 09:39:58,815 INFO L202 PluginConnector]: Adding new model underapprox2.i_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 09:39:58 BoogieIcfgContainer [2018-07-25 09:39:58,816 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 09:39:58,816 INFO L168 Benchmark]: Toolchain (without parser) took 3209.17 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-07-25 09:39:58,818 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 09:39:58,819 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.66 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 09:39:58,820 INFO L168 Benchmark]: Boogie Preprocessor took 20.45 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 09:39:58,821 INFO L168 Benchmark]: RCFGBuilder took 209.76 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-25 09:39:58,822 INFO L168 Benchmark]: TraceAbstraction took 2932.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 126.9 MB). Peak memory consumption was 126.9 MB. Max. memory is 7.1 GB. [2018-07-25 09:39:58,827 INFO L336 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 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 41.66 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 20.45 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 209.76 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2932.88 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 126.9 MB). Peak memory consumption was 126.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 36]: assertion can be violated assertion can be violated We found a FailurePath: [L10] havoc main_#res; [L11] havoc main_#t~post0, main_~x~4, main_~y~4; [L12] main_~x~4 := 0; [L13] main_~y~4 := 1; [L16] assume true; [L29] assume !!(main_~x~4 % 4294967296 < 6); [L30] main_#t~post0 := main_~x~4; [L31] main_~x~4 := main_#t~post0 + 1; [L32] havoc main_#t~post0; [L33] main_~y~4 := main_~y~4 * 2; [L16] assume true; [L21] assume !(main_~x~4 % 4294967296 < 6); [L22] __VERIFIER_assert_#in~cond := (if main_~x~4 % 4294967296 != 6 then 1 else 0); [L23] havoc __VERIFIER_assert_~cond; [L24] __VERIFIER_assert_~cond := __VERIFIER_assert_#in~cond; [L25] assume __VERIFIER_assert_~cond == 0; [L26] assume !false; [L36] assert false; - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. UNSAFE Result, 2.8s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4 SDtfs, 0 SDslu, 2 SDs, 0 SdLazy, 3 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=1, 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: 2.6s PdrRuntime, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/underapprox2.i_3.bpl_AutomizerBpl-pdr.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_09-39-58-839.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/underapprox2.i_3.bpl_AutomizerBpl-pdr.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_09-39-58-839.csv Received shutdown request...