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/Backtranslation/regression/bpl/While.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 09:52:15,785 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 09:52:15,787 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 09:52:15,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 09:52:15,800 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 09:52:15,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 09:52:15,802 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 09:52:15,804 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 09:52:15,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 09:52:15,807 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 09:52:15,808 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 09:52:15,809 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 09:52:15,809 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 09:52:15,810 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 09:52:15,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 09:52:15,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 09:52:15,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 09:52:15,814 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 09:52:15,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 09:52:15,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 09:52:15,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 09:52:15,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 09:52:15,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 09:52:15,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 09:52:15,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 09:52:15,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 09:52:15,827 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 09:52:15,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 09:52:15,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 09:52:15,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 09:52:15,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 09:52:15,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 09:52:15,831 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 09:52:15,832 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 09:52:15,833 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 09:52:15,834 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 09:52:15,835 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 09:52:15,835 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 09:52:15,835 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 09:52:15,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 09:52:15,837 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 09:52:15,864 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 09:52:15,877 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 09:52:15,880 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 09:52:15,882 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 09:52:15,882 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 09:52:15,883 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/Backtranslation/regression/bpl/While.bpl [2019-08-05 09:52:15,883 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/Backtranslation/regression/bpl/While.bpl' [2019-08-05 09:52:15,917 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 09:52:15,919 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 09:52:15,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 09:52:15,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 09:52:15,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 09:52:15,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "While.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:15" (1/1) ... [2019-08-05 09:52:15,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "While.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:15" (1/1) ... [2019-08-05 09:52:15,954 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 09:52:15,954 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 09:52:15,955 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 09:52:15,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 09:52:15,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 09:52:15,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 09:52:15,958 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 09:52:15,970 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "While.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:15" (1/1) ... [2019-08-05 09:52:15,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "While.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:15" (1/1) ... [2019-08-05 09:52:15,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "While.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:15" (1/1) ... [2019-08-05 09:52:15,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "While.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:15" (1/1) ... [2019-08-05 09:52:15,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "While.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:15" (1/1) ... [2019-08-05 09:52:15,983 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "While.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:15" (1/1) ... [2019-08-05 09:52:15,985 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "While.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:15" (1/1) ... [2019-08-05 09:52:15,987 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 09:52:15,987 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 09:52:15,987 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 09:52:15,988 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 09:52:15,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "While.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:15" (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 09:52:16,070 INFO L124 BoogieDeclarations]: Specification and implementation of procedure test given in one single declaration [2019-08-05 09:52:16,071 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-08-05 09:52:16,071 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-08-05 09:52:16,139 WARN L731 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2019-08-05 09:52:16,505 INFO L275 CfgBuilder]: Using library mode [2019-08-05 09:52:16,506 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-05 09:52:16,507 INFO L202 PluginConnector]: Adding new model While.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:52:16 BoogieIcfgContainer [2019-08-05 09:52:16,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 09:52:16,510 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 09:52:16,510 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 09:52:16,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 09:52:16,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "While.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 09:52:15" (1/2) ... [2019-08-05 09:52:16,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470fc902 and model type While.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 09:52:16, skipping insertion in model container [2019-08-05 09:52:16,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "While.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 09:52:16" (2/2) ... [2019-08-05 09:52:16,516 INFO L109 eAbstractionObserver]: Analyzing ICFG While.bpl [2019-08-05 09:52:16,529 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 09:52:16,539 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 09:52:16,557 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 09:52:16,585 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 09:52:16,586 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 09:52:16,586 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 09:52:16,586 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 09:52:16,587 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 09:52:16,587 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 09:52:16,587 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 09:52:16,587 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 09:52:16,587 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 09:52:16,604 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-05 09:52:16,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 09:52:16,612 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:16,613 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 09:52:16,616 INFO L418 AbstractCegarLoop]: === Iteration 1 === [testErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:16,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:16,622 INFO L82 PathProgramCache]: Analyzing trace with hash 54457, now seen corresponding path program 1 times [2019-08-05 09:52:16,680 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:16,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:16,711 INFO L256 TraceCheckSpWp]: Trace formula consists of 10 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 09:52:16,716 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:16,760 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 09:52:16,762 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:16,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 09:52:16,766 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:52:16,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:52:16,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:52:16,785 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2019-08-05 09:52:16,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:16,863 INFO L93 Difference]: Finished difference Result 8 states and 10 transitions. [2019-08-05 09:52:16,863 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:52:16,865 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-08-05 09:52:16,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:16,883 INFO L225 Difference]: With dead ends: 8 [2019-08-05 09:52:16,883 INFO L226 Difference]: Without dead ends: 7 [2019-08-05 09:52:16,886 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:52:16,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-08-05 09:52:16,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 6. [2019-08-05 09:52:16,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-08-05 09:52:16,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 7 transitions. [2019-08-05 09:52:16,922 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 7 transitions. Word has length 3 [2019-08-05 09:52:16,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:16,923 INFO L475 AbstractCegarLoop]: Abstraction has 6 states and 7 transitions. [2019-08-05 09:52:16,923 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:52:16,923 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 7 transitions. [2019-08-05 09:52:16,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-08-05 09:52:16,924 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:16,924 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-08-05 09:52:16,924 INFO L418 AbstractCegarLoop]: === Iteration 2 === [testErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:16,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:16,925 INFO L82 PathProgramCache]: Analyzing trace with hash 51884070, now seen corresponding path program 1 times [2019-08-05 09:52:16,926 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:16,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 09:52:16,935 INFO L256 TraceCheckSpWp]: Trace formula consists of 16 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 09:52:16,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 09:52:16,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-08-05 09:52:16,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 09:52:16,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 09:52:17,002 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 09:52:17,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 09:52:17,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:52:17,003 INFO L87 Difference]: Start difference. First operand 6 states and 7 transitions. Second operand 3 states. [2019-08-05 09:52:17,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 09:52:17,082 INFO L93 Difference]: Finished difference Result 7 states and 8 transitions. [2019-08-05 09:52:17,082 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 09:52:17,083 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-08-05 09:52:17,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 09:52:17,083 INFO L225 Difference]: With dead ends: 7 [2019-08-05 09:52:17,084 INFO L226 Difference]: Without dead ends: 7 [2019-08-05 09:52:17,085 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 09:52:17,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-08-05 09:52:17,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-08-05 09:52:17,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-08-05 09:52:17,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 8 transitions. [2019-08-05 09:52:17,089 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 8 transitions. Word has length 5 [2019-08-05 09:52:17,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 09:52:17,093 INFO L475 AbstractCegarLoop]: Abstraction has 7 states and 8 transitions. [2019-08-05 09:52:17,093 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 09:52:17,093 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 8 transitions. [2019-08-05 09:52:17,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-08-05 09:52:17,094 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 09:52:17,097 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-08-05 09:52:17,098 INFO L418 AbstractCegarLoop]: === Iteration 3 === [testErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 09:52:17,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 09:52:17,098 INFO L82 PathProgramCache]: Analyzing trace with hash 1608702148, now seen corresponding path program 1 times [2019-08-05 09:52:17,099 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 09:52:17,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-08-05 09:52:17,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-08-05 09:52:17,173 INFO L466 BasicCegarLoop]: Counterexample might be feasible [2019-08-05 09:52:17,202 INFO L202 PluginConnector]: Adding new model While.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 09:52:17 BoogieIcfgContainer [2019-08-05 09:52:17,202 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 09:52:17,205 INFO L168 Benchmark]: Toolchain (without parser) took 1284.96 ms. Allocated memory is still 133.2 MB. Free memory was 110.8 MB in the beginning and 70.1 MB in the end (delta: 40.7 MB). Peak memory consumption was 40.7 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:17,207 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 ms. Allocated memory is still 133.2 MB. Free memory was 112.1 MB in the beginning and 111.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 09:52:17,209 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.60 ms. Allocated memory is still 133.2 MB. Free memory was 110.8 MB in the beginning and 108.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:17,210 INFO L168 Benchmark]: Boogie Preprocessor took 28.96 ms. Allocated memory is still 133.2 MB. Free memory was 108.8 MB in the beginning and 107.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:17,211 INFO L168 Benchmark]: RCFGBuilder took 520.64 ms. Allocated memory is still 133.2 MB. Free memory was 107.7 MB in the beginning and 96.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:17,212 INFO L168 Benchmark]: TraceAbstraction took 692.55 ms. Allocated memory is still 133.2 MB. Free memory was 96.2 MB in the beginning and 70.1 MB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2019-08-05 09:52:17,217 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 0.24 ms. Allocated memory is still 133.2 MB. Free memory was 112.1 MB in the beginning and 111.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 37.60 ms. Allocated memory is still 133.2 MB. Free memory was 110.8 MB in the beginning and 108.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.96 ms. Allocated memory is still 133.2 MB. Free memory was 108.8 MB in the beginning and 107.7 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 520.64 ms. Allocated memory is still 133.2 MB. Free memory was 107.7 MB in the beginning and 96.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 11.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 692.55 ms. Allocated memory is still 133.2 MB. Free memory was 96.2 MB in the beginning and 70.1 MB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 20]: assertion can be violated assertion can be violated We found a FailurePath: [L1-L2] requires ain == 51; [L5] a := ain; [L6] r := 0; VAL [a=51, ain=51, r=0] [L8] COND TRUE a > 0 VAL [a=51, ain=51, r=0] [L9] COND TRUE a < 100 [L10] COND FALSE !(a % 2 == 0) [L13] r := r + 1; [L15] a := a + a + 1; VAL [a=103, ain=51, r=1] [L9] COND FALSE !(a < 100) [L17] r := r + r; [L18] a := -a - a - a - 1; VAL [a=-310, ain=51, r=2] [L8] COND FALSE !(a > 0) VAL [a=-310, ain=51, r=2] [L20] assert r == 0; VAL [a=-310, ain=51, r=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. UNSAFE Result, 0.6s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 7 SDtfs, 3 SDslu, 2 SDs, 0 SdLazy, 11 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=2, 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, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 40 SizeOfPredicates, 3 NumberOfNonLiveVariables, 26 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...