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/regression/bpl/interprocedural/BugLiveVariables04-Safe.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:08:43,028 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:08:43,030 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:08:43,043 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:08:43,043 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:08:43,047 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:08:43,048 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:08:43,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:08:43,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:08:43,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:08:43,056 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:08:43,057 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:08:43,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:08:43,059 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:08:43,060 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:08:43,065 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:08:43,066 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:08:43,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:08:43,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:08:43,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:08:43,082 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:08:43,083 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:08:43,086 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:08:43,087 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:08:43,090 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:08:43,090 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:08:43,091 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:08:43,093 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:08:43,094 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:08:43,094 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:08:43,095 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:08:43,098 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:08:43,099 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:08:43,099 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:08:43,101 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:08:43,101 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:08:43,102 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:08:43,103 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:08:43,103 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:08:43,104 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:08:43,105 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:08:43,149 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:08:43,162 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:08:43,165 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:08:43,166 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:08:43,167 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:08:43,168 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugLiveVariables04-Safe.bpl [2019-08-05 11:08:43,168 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/interprocedural/BugLiveVariables04-Safe.bpl' [2019-08-05 11:08:43,205 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:08:43,206 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:08:43,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:08:43,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:08:43,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:08:43,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "BugLiveVariables04-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:43" (1/1) ... [2019-08-05 11:08:43,235 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "BugLiveVariables04-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:43" (1/1) ... [2019-08-05 11:08:43,242 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 11:08:43,242 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 11:08:43,243 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 11:08:43,256 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:08:43,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:08:43,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:08:43,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:08:43,268 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "BugLiveVariables04-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:43" (1/1) ... [2019-08-05 11:08:43,269 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "BugLiveVariables04-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:43" (1/1) ... [2019-08-05 11:08:43,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "BugLiveVariables04-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:43" (1/1) ... [2019-08-05 11:08:43,270 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "BugLiveVariables04-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:43" (1/1) ... [2019-08-05 11:08:43,272 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "BugLiveVariables04-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:43" (1/1) ... [2019-08-05 11:08:43,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "BugLiveVariables04-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:43" (1/1) ... [2019-08-05 11:08:43,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "BugLiveVariables04-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:43" (1/1) ... [2019-08-05 11:08:43,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:08:43,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:08:43,277 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:08:43,277 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:08:43,278 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "BugLiveVariables04-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:43" (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 11:08:43,348 INFO L124 BoogieDeclarations]: Specification and implementation of procedure malloc given in one single declaration [2019-08-05 11:08:43,348 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-08-05 11:08:43,348 INFO L138 BoogieDeclarations]: Found implementation of procedure malloc [2019-08-05 11:08:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2019-08-05 11:08:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 11:08:43,349 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 11:08:43,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-08-05 11:08:43,771 INFO L275 CfgBuilder]: Using library mode [2019-08-05 11:08:43,772 INFO L283 CfgBuilder]: Removed 6 assume(true) statements. [2019-08-05 11:08:43,773 INFO L202 PluginConnector]: Adding new model BugLiveVariables04-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:08:43 BoogieIcfgContainer [2019-08-05 11:08:43,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:08:43,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:08:43,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:08:43,778 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:08:43,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "BugLiveVariables04-Safe.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:08:43" (1/2) ... [2019-08-05 11:08:43,780 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c839a5 and model type BugLiveVariables04-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:08:43, skipping insertion in model container [2019-08-05 11:08:43,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "BugLiveVariables04-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:08:43" (2/2) ... [2019-08-05 11:08:43,782 INFO L109 eAbstractionObserver]: Analyzing ICFG BugLiveVariables04-Safe.bpl [2019-08-05 11:08:43,792 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:08:43,801 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-08-05 11:08:43,817 INFO L252 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-08-05 11:08:43,843 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:08:43,843 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:08:43,844 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:08:43,844 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:08:43,844 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:08:43,844 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:08:43,844 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:08:43,844 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:08:43,845 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:08:43,857 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-08-05 11:08:43,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2019-08-05 11:08:43,866 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:08:43,867 INFO L399 BasicCegarLoop]: trace histogram [1, 1] [2019-08-05 11:08:43,869 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr1REQUIRES_VIOLATIONPRE_CONDITION, mainErr0REQUIRES_VIOLATIONPRE_CONDITION]=== [2019-08-05 11:08:43,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:08:43,875 INFO L82 PathProgramCache]: Analyzing trace with hash 1589, now seen corresponding path program 1 times [2019-08-05 11:08:43,919 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:08:43,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:08:43,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 14 conjuncts, 5 conjunts are in the unsatisfiable core [2019-08-05 11:08:43,974 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:08:44,023 INFO L392 ElimStorePlain]: Different costs {0=[v_prenex_1, |v_#length_37|], 1=[|v_#valid_31|]} [2019-08-05 11:08:44,063 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:08:44,101 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2019-08-05 11:08:44,102 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:08:44,192 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:08:44,216 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:08:44,237 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2019-08-05 11:08:44,238 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-05 11:08:44,294 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:08:44,307 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:08:44,315 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2019-08-05 11:08:44,316 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-08-05 11:08:44,337 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2019-08-05 11:08:44,338 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-08-05 11:08:44,424 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:08:44,426 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-08-05 11:08:44,427 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:37, output treesize:27 [2019-08-05 11:08:44,500 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 11:08:44,503 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:08:44,503 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-08-05 11:08:44,507 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 11:08:44,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 11:08:44,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:08:44,527 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 3 states. [2019-08-05 11:08:44,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:08:44,608 INFO L93 Difference]: Finished difference Result 7 states and 5 transitions. [2019-08-05 11:08:44,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 11:08:44,610 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2019-08-05 11:08:44,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:08:44,634 INFO L225 Difference]: With dead ends: 7 [2019-08-05 11:08:44,634 INFO L226 Difference]: Without dead ends: 4 [2019-08-05 11:08:44,636 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 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 11:08:44,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states. [2019-08-05 11:08:44,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2019-08-05 11:08:44,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2019-08-05 11:08:44,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 3 transitions. [2019-08-05 11:08:44,669 INFO L78 Accepts]: Start accepts. Automaton has 4 states and 3 transitions. Word has length 2 [2019-08-05 11:08:44,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:08:44,669 INFO L475 AbstractCegarLoop]: Abstraction has 4 states and 3 transitions. [2019-08-05 11:08:44,669 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 11:08:44,670 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 3 transitions. [2019-08-05 11:08:44,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 11:08:44,670 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:08:44,670 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 11:08:44,671 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr1REQUIRES_VIOLATIONPRE_CONDITION, mainErr0REQUIRES_VIOLATIONPRE_CONDITION]=== [2019-08-05 11:08:44,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:08:44,671 INFO L82 PathProgramCache]: Analyzing trace with hash 49613, now seen corresponding path program 1 times [2019-08-05 11:08:44,672 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:08:44,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:08:44,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 8 conjunts are in the unsatisfiable core [2019-08-05 11:08:44,699 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:08:44,721 INFO L392 ElimStorePlain]: Different costs {0=[v_prenex_3, |v_#length_38|], 1=[|v_#valid_32|]} [2019-08-05 11:08:44,756 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:08:44,808 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2019-08-05 11:08:44,809 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:08:44,848 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:08:44,879 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:08:44,913 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2019-08-05 11:08:44,914 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-05 11:08:44,995 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:08:45,043 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2019-08-05 11:08:45,044 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-08-05 11:08:45,077 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-05 11:08:45,090 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2019-08-05 11:08:45,091 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-08-05 11:08:45,127 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:08:45,130 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 3 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-08-05 11:08:45,131 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:37, output treesize:27 [2019-08-05 11:08:45,237 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2019-08-05 11:08:45,242 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:08:45,479 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2019-08-05 11:08:45,479 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:08:45,480 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 22 treesize of output 63 [2019-08-05 11:08:45,483 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:08:45,547 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:08:45,548 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 24 treesize of output 57 [2019-08-05 11:08:45,550 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-05 11:08:45,983 WARN L188 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 29 [2019-08-05 11:08:45,983 INFO L567 ElimStorePlain]: treesize reduction 44, result has 57.3 percent of original size [2019-08-05 11:08:45,985 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:08:45,987 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:08:45,988 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:08:45,990 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:08:45,992 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 4 dim-0 vars, and 2 xjuncts. [2019-08-05 11:08:45,992 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:47, output treesize:59 [2019-08-05 11:08:45,993 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:08:45,993 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:08:45,994 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:08:45,996 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:08:46,070 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 11:08:46,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:08:46,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 11:08:46,073 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 11:08:46,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 11:08:46,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:08:46,074 INFO L87 Difference]: Start difference. First operand 4 states and 3 transitions. Second operand 4 states. [2019-08-05 11:08:46,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:08:46,086 INFO L93 Difference]: Finished difference Result 3 states and 2 transitions. [2019-08-05 11:08:46,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 11:08:46,086 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-08-05 11:08:46,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:08:46,087 INFO L225 Difference]: With dead ends: 3 [2019-08-05 11:08:46,087 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:08:46,088 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:08:46,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:08:46,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:08:46,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:08:46,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:08:46,089 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-08-05 11:08:46,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:08:46,089 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:08:46,089 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 11:08:46,090 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:08:46,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:08:46,094 INFO L202 PluginConnector]: Adding new model BugLiveVariables04-Safe.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:08:46 BoogieIcfgContainer [2019-08-05 11:08:46,094 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:08:46,096 INFO L168 Benchmark]: Toolchain (without parser) took 2889.61 ms. Allocated memory was 136.3 MB in the beginning and 169.9 MB in the end (delta: 33.6 MB). Free memory was 111.6 MB in the beginning and 97.3 MB in the end (delta: 14.2 MB). Peak memory consumption was 47.8 MB. Max. memory is 7.1 GB. [2019-08-05 11:08:46,096 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 136.3 MB. Free memory was 112.8 MB in the beginning and 112.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-08-05 11:08:46,097 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.99 ms. Allocated memory is still 136.3 MB. Free memory was 111.4 MB in the beginning and 109.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. [2019-08-05 11:08:46,098 INFO L168 Benchmark]: Boogie Preprocessor took 18.80 ms. Allocated memory is still 136.3 MB. Free memory was 109.2 MB in the beginning and 108.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. [2019-08-05 11:08:46,099 INFO L168 Benchmark]: RCFGBuilder took 497.11 ms. Allocated memory is still 136.3 MB. Free memory was 107.9 MB in the beginning and 93.9 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2019-08-05 11:08:46,100 INFO L168 Benchmark]: TraceAbstraction took 2319.14 ms. Allocated memory was 136.3 MB in the beginning and 169.9 MB in the end (delta: 33.6 MB). Free memory was 93.7 MB in the beginning and 97.3 MB in the end (delta: -3.6 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. [2019-08-05 11:08:46,104 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 0.20 ms. Allocated memory is still 136.3 MB. Free memory was 112.8 MB in the beginning and 112.6 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.99 ms. Allocated memory is still 136.3 MB. Free memory was 111.4 MB in the beginning and 109.2 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 18.80 ms. Allocated memory is still 136.3 MB. Free memory was 109.2 MB in the beginning and 108.2 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 497.11 ms. Allocated memory is still 136.3 MB. Free memory was 107.9 MB in the beginning and 93.9 MB in the end (delta: 14.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2319.14 ms. Allocated memory was 136.3 MB in the beginning and 169.9 MB in the end (delta: 33.6 MB). Free memory was 93.7 MB in the beginning and 97.3 MB in the end (delta: -3.6 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 23]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - PositiveResult [Line: 20]: procedure precondition always holds For all program executions holds that procedure precondition always holds at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 8 locations, 2 error locations. SAFE Result, 2.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 3 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 6 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 3 QuantifiedInterpolants, 166 SizeOfPredicates, 6 NumberOfNonLiveVariables, 38 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...