java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/programs/regression/bpl/AutomizerBpl-pdr.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/PointerIncrement-simplified01.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 16:23:34,685 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 16:23:34,687 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 16:23:34,700 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 16:23:34,700 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 16:23:34,701 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 16:23:34,702 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 16:23:34,704 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 16:23:34,706 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 16:23:34,706 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 16:23:34,707 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 16:23:34,708 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 16:23:34,708 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 16:23:34,709 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 16:23:34,711 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 16:23:34,711 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 16:23:34,712 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 16:23:34,714 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 16:23:34,716 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 16:23:34,718 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 16:23:34,719 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 16:23:34,720 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 16:23:34,722 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 16:23:34,722 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 16:23:34,723 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 16:23:34,724 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 16:23:34,725 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 16:23:34,725 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 16:23:34,726 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 16:23:34,727 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 16:23:34,728 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 16:23:34,728 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 16:23:34,729 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 16:23:34,729 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 16:23:34,730 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 16:23:34,730 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 16:23:34,731 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/AutomizerBpl-pdr.epf [2018-07-23 16:23:34,748 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 16:23:34,749 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 16:23:34,751 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 16:23:34,751 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-23 16:23:34,751 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 16:23:34,751 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 16:23:34,804 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 16:23:34,818 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 16:23:34,824 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 16:23:34,825 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 16:23:34,826 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 16:23:34,827 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/PointerIncrement-simplified01.bpl [2018-07-23 16:23:34,827 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/PointerIncrement-simplified01.bpl' [2018-07-23 16:23:34,884 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 16:23:34,886 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 16:23:34,887 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 16:23:34,887 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 16:23:34,887 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 16:23:34,912 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:23:34" (1/1) ... [2018-07-23 16:23:34,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:23:34" (1/1) ... [2018-07-23 16:23:34,928 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:23:34" (1/1) ... [2018-07-23 16:23:34,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:23:34" (1/1) ... [2018-07-23 16:23:34,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:23:34" (1/1) ... [2018-07-23 16:23:34,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:23:34" (1/1) ... [2018-07-23 16:23:34,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:23:34" (1/1) ... [2018-07-23 16:23:34,941 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 16:23:34,942 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 16:23:34,942 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 16:23:34,943 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 16:23:34,944 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:23:34" (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 [2018-07-23 16:23:35,013 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-23 16:23:35,014 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-07-23 16:23:35,014 INFO L130 BoogieDeclarations]: Found specification of procedure ~malloc [2018-07-23 16:23:35,014 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-23 16:23:35,442 INFO L258 CfgBuilder]: Using library mode [2018-07-23 16:23:35,443 INFO L202 PluginConnector]: Adding new model PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:23:35 BoogieIcfgContainer [2018-07-23 16:23:35,443 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 16:23:35,444 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 16:23:35,444 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 16:23:35,448 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 16:23:35,448 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 04:23:34" (1/2) ... [2018-07-23 16:23:35,449 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bef5701 and model type PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 04:23:35, skipping insertion in model container [2018-07-23 16:23:35,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:23:35" (2/2) ... [2018-07-23 16:23:35,451 INFO L112 eAbstractionObserver]: Analyzing ICFG PointerIncrement-simplified01.bpl [2018-07-23 16:23:35,461 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-23 16:23:35,470 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-07-23 16:23:35,517 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 16:23:35,518 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 16:23:35,518 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 16:23:35,519 INFO L375 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-23 16:23:35,519 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 16:23:35,519 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 16:23:35,519 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 16:23:35,519 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 16:23:35,520 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 16:23:35,535 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2018-07-23 16:23:35,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 16:23:35,544 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:23:35,545 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 16:23:35,545 INFO L414 AbstractCegarLoop]: === Iteration 1 === [mainErr0RequiresViolationPRE_CONDITION, mainErr1RequiresViolationPRE_CONDITION]=== [2018-07-23 16:23:35,551 INFO L82 PathProgramCache]: Analyzing trace with hash 1762732, now seen corresponding path program 1 times [2018-07-23 16:23:35,558 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:23:35,846 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:23:35,846 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 16:23:35,852 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 16:23:35,858 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 16:23:35,859 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-07-23 16:23:35,862 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 5 states. [2018-07-23 16:23:35,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:23:35,922 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-07-23 16:23:35,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-23 16:23:35,924 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2018-07-23 16:23:35,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:23:35,935 INFO L225 Difference]: With dead ends: 11 [2018-07-23 16:23:35,935 INFO L226 Difference]: Without dead ends: 6 [2018-07-23 16:23:35,939 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-07-23 16:23:35,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2018-07-23 16:23:35,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2018-07-23 16:23:35,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2018-07-23 16:23:35,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2018-07-23 16:23:35,974 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 7 transitions. Word has length 4 [2018-07-23 16:23:35,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:23:35,975 INFO L471 AbstractCegarLoop]: Abstraction has 6 states and 7 transitions. [2018-07-23 16:23:35,975 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 16:23:35,975 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2018-07-23 16:23:35,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 16:23:35,976 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:23:35,976 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 16:23:35,976 INFO L414 AbstractCegarLoop]: === Iteration 2 === [mainErr0RequiresViolationPRE_CONDITION, mainErr1RequiresViolationPRE_CONDITION]=== [2018-07-23 16:23:35,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1762733, now seen corresponding path program 1 times [2018-07-23 16:23:35,977 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:23:36,303 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:23:36,304 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 16:23:36,306 INFO L450 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-23 16:23:36,306 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-23 16:23:36,307 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-07-23 16:23:36,307 INFO L87 Difference]: Start difference. First operand 6 states and 7 transitions. Second operand 5 states. [2018-07-23 16:23:36,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:23:36,500 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2018-07-23 16:23:36,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 16:23:36,500 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2018-07-23 16:23:36,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:23:36,501 INFO L225 Difference]: With dead ends: 11 [2018-07-23 16:23:36,501 INFO L226 Difference]: Without dead ends: 10 [2018-07-23 16:23:36,503 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-07-23 16:23:36,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2018-07-23 16:23:36,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2018-07-23 16:23:36,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2018-07-23 16:23:36,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 11 transitions. [2018-07-23 16:23:36,508 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 11 transitions. Word has length 4 [2018-07-23 16:23:36,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:23:36,508 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 11 transitions. [2018-07-23 16:23:36,508 INFO L472 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-23 16:23:36,508 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2018-07-23 16:23:36,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-07-23 16:23:36,509 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:23:36,509 INFO L353 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2018-07-23 16:23:36,509 INFO L414 AbstractCegarLoop]: === Iteration 3 === [mainErr0RequiresViolationPRE_CONDITION, mainErr1RequiresViolationPRE_CONDITION]=== [2018-07-23 16:23:36,510 INFO L82 PathProgramCache]: Analyzing trace with hash 979785560, now seen corresponding path program 1 times [2018-07-23 16:23:36,510 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:23:36,938 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:23:36,938 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-07-23 16:23:36,938 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 16:23:36,939 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 16:23:36,939 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2018-07-23 16:23:36,939 INFO L87 Difference]: Start difference. First operand 9 states and 11 transitions. Second operand 6 states. [2018-07-23 16:23:37,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:23:37,265 INFO L93 Difference]: Finished difference Result 16 states and 19 transitions. [2018-07-23 16:23:37,265 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-23 16:23:37,266 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 7 [2018-07-23 16:23:37,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:23:37,267 INFO L225 Difference]: With dead ends: 16 [2018-07-23 16:23:37,267 INFO L226 Difference]: Without dead ends: 15 [2018-07-23 16:23:37,269 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2018-07-23 16:23:37,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-07-23 16:23:37,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 10. [2018-07-23 16:23:37,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2018-07-23 16:23:37,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2018-07-23 16:23:37,276 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 12 transitions. Word has length 7 [2018-07-23 16:23:37,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:23:37,277 INFO L471 AbstractCegarLoop]: Abstraction has 10 states and 12 transitions. [2018-07-23 16:23:37,277 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 16:23:37,277 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 12 transitions. [2018-07-23 16:23:37,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-23 16:23:37,278 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:23:37,278 INFO L353 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2018-07-23 16:23:37,278 INFO L414 AbstractCegarLoop]: === Iteration 4 === [mainErr0RequiresViolationPRE_CONDITION, mainErr1RequiresViolationPRE_CONDITION]=== [2018-07-23 16:23:37,279 INFO L82 PathProgramCache]: Analyzing trace with hash 142791408, now seen corresponding path program 1 times [2018-07-23 16:23:37,279 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:23:41,588 WARN L169 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2018-07-23 16:23:43,236 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 83 [2018-07-23 16:23:45,620 WARN L169 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 103 [2018-07-23 16:23:48,284 WARN L169 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 106 [2018-07-23 16:23:51,669 WARN L169 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 114 [2018-07-23 16:23:57,378 WARN L169 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 117 [2018-07-23 16:24:04,066 WARN L169 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 142 [2018-07-23 16:24:11,800 WARN L169 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 145 [2018-07-23 16:24:21,807 WARN L169 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 153 [2018-07-23 16:24:35,172 WARN L169 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 156 [2018-07-23 16:24:52,277 WARN L169 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2018-07-23 16:25:12,909 WARN L169 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2018-07-23 16:25:37,794 WARN L169 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 197 [2018-07-23 16:26:09,291 WARN L169 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 200 [2018-07-23 16:26:49,176 WARN L169 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 236 DAG size of output: 235 [2018-07-23 16:27:36,430 WARN L169 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 239 DAG size of output: 238 Received shutdown request... [2018-07-23 16:28:15,719 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 16:28:15,730 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 16:28:15,730 INFO L202 PluginConnector]: Adding new model PointerIncrement-simplified01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 04:28:15 BoogieIcfgContainer [2018-07-23 16:28:15,730 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 16:28:15,732 INFO L168 Benchmark]: Toolchain (without parser) took 280846.39 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -158.9 MB). Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 130.4 MB). Peak memory consumption was 425.9 MB. Max. memory is 7.1 GB. [2018-07-23 16:28:15,733 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. [2018-07-23 16:28:15,734 INFO L168 Benchmark]: Boogie Preprocessor took 55.09 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. [2018-07-23 16:28:15,734 INFO L168 Benchmark]: RCFGBuilder took 500.73 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. [2018-07-23 16:28:15,735 INFO L168 Benchmark]: TraceAbstraction took 280286.54 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -158.9 MB). Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 109.3 MB). Peak memory consumption was 404.8 MB. Max. memory is 7.1 GB. [2018-07-23 16:28:15,739 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 Preprocessor took 55.09 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 500.73 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 280286.54 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -158.9 MB). Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 109.3 MB). Peak memory consumption was 404.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction) Unable to prove that procedure precondition always holds (line 16). Cancelled while BasicCegarLoop was analyzing trace of length 9 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 65 known predicates. - TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction) Unable to prove that procedure precondition always holds (line 16). Cancelled while BasicCegarLoop was analyzing trace of length 9 with TraceHistMax 2, while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 65 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. TIMEOUT Result, 280.2s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 14 SDtfs, 29 SDslu, 4 SDs, 0 SdLazy, 30 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 162 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=3, 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, 3 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 1.0s PdrRuntime, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/PointerIncrement-simplified01.bpl_AutomizerBpl-pdr.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_16-28-15-752.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/PointerIncrement-simplified01.bpl_AutomizerBpl-pdr.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_16-28-15-752.csv Completed graceful shutdown