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/quantifier/Arrays/Arrays17.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:06:21,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:06:21,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:06:21,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:06:21,088 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:06:21,089 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:06:21,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:06:21,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:06:21,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:06:21,095 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:06:21,096 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:06:21,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:06:21,097 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:06:21,098 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:06:21,099 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:06:21,100 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:06:21,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:06:21,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:06:21,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:06:21,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:06:21,107 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:06:21,108 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:06:21,109 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:06:21,110 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:06:21,112 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:06:21,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:06:21,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:06:21,113 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:06:21,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:06:21,114 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:06:21,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:06:21,115 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:06:21,116 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:06:21,117 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:06:21,118 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:06:21,118 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:06:21,119 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:06:21,119 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:06:21,119 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:06:21,120 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:06:21,120 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:06:21,152 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:06:21,168 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:06:21,171 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:06:21,173 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:06:21,173 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:06:21,173 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/quantifier/Arrays/Arrays17.bpl [2019-08-05 11:06:21,174 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/quantifier/Arrays/Arrays17.bpl' [2019-08-05 11:06:21,255 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:06:21,256 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:06:21,257 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:06:21,257 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:06:21,257 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:06:21,272 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Arrays17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:21" (1/1) ... [2019-08-05 11:06:21,282 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Arrays17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:21" (1/1) ... [2019-08-05 11:06:21,288 WARN L165 Inliner]: Program contained no entry procedure! [2019-08-05 11:06:21,288 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2019-08-05 11:06:21,288 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2019-08-05 11:06:21,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:06:21,306 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:06:21,306 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:06:21,306 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:06:21,316 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Arrays17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:21" (1/1) ... [2019-08-05 11:06:21,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Arrays17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:21" (1/1) ... [2019-08-05 11:06:21,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Arrays17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:21" (1/1) ... [2019-08-05 11:06:21,319 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Arrays17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:21" (1/1) ... [2019-08-05 11:06:21,322 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Arrays17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:21" (1/1) ... [2019-08-05 11:06:21,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Arrays17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:21" (1/1) ... [2019-08-05 11:06:21,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Arrays17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:21" (1/1) ... [2019-08-05 11:06:21,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:06:21,329 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:06:21,329 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:06:21,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:06:21,330 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Arrays17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:21" (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 11:06:21,396 INFO L130 BoogieDeclarations]: Found specification of procedure p2 [2019-08-05 11:06:21,396 INFO L138 BoogieDeclarations]: Found implementation of procedure p2 [2019-08-05 11:06:21,397 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-05 11:06:21,397 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-05 11:06:22,079 INFO L275 CfgBuilder]: Using library mode [2019-08-05 11:06:22,080 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-08-05 11:06:22,081 INFO L202 PluginConnector]: Adding new model Arrays17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:06:22 BoogieIcfgContainer [2019-08-05 11:06:22,081 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:06:22,083 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:06:22,083 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:06:22,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:06:22,086 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Arrays17.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:06:21" (1/2) ... [2019-08-05 11:06:22,087 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71b2a23b and model type Arrays17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:06:22, skipping insertion in model container [2019-08-05 11:06:22,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Arrays17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:06:22" (2/2) ... [2019-08-05 11:06:22,090 INFO L109 eAbstractionObserver]: Analyzing ICFG Arrays17.bpl [2019-08-05 11:06:22,099 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:06:22,107 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 19 error locations. [2019-08-05 11:06:22,121 INFO L252 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2019-08-05 11:06:22,146 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:06:22,147 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:06:22,147 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:06:22,147 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:06:22,148 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:06:22,148 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:06:22,148 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:06:22,148 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:06:22,148 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:06:22,164 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2019-08-05 11:06:22,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 11:06:22,173 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:06:22,174 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 11:06:22,178 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONASSERT, mainErr4ASSERT_VIOLATIONASSERT, mainErr9ASSERT_VIOLATIONASSERT, mainErr16ASSERT_VIOLATIONASSERT, mainErr17ASSERT_VIOLATIONASSERT, mainErr5ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT, mainErr18ASSERT_VIOLATIONASSERT, mainErr14ASSERT_VIOLATIONASSERT, mainErr11ASSERT_VIOLATIONASSERT, mainErr6ASSERT_VIOLATIONASSERT, mainErr12ASSERT_VIOLATIONASSERT, mainErr13ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONASSERT, mainErr15ASSERT_VIOLATIONASSERT, mainErr7ASSERT_VIOLATIONASSERT, mainErr3ASSERT_VIOLATIONASSERT, mainErr8ASSERT_VIOLATIONASSERT, mainErr10ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:06:22,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:06:22,184 INFO L82 PathProgramCache]: Analyzing trace with hash 36839, now seen corresponding path program 1 times [2019-08-05 11:06:22,229 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:06:22,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:06:22,346 WARN L254 TraceCheckSpWp]: Trace formula consists of 6 conjuncts, 4 conjunts are in the unsatisfiable core [2019-08-05 11:06:22,354 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:06:22,464 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 208 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 101 [2019-08-05 11:06:22,466 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:06:22,739 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-08-05 11:06:22,740 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:06:22,741 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-05 11:06:22,742 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:63, output treesize:101 [2019-08-05 11:06:23,049 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-08-05 11:06:23,288 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2019-08-05 11:06:23,292 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 11:06:23,295 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:06:23,295 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 11:06:23,299 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 11:06:23,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 11:06:23,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:06:23,318 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 4 states. [2019-08-05 11:06:23,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:06:23,567 INFO L93 Difference]: Finished difference Result 27 states and 26 transitions. [2019-08-05 11:06:23,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 11:06:23,569 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-08-05 11:06:23,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:06:23,580 INFO L225 Difference]: With dead ends: 27 [2019-08-05 11:06:23,580 INFO L226 Difference]: Without dead ends: 24 [2019-08-05 11:06:23,582 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:06:23,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-08-05 11:06:23,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-08-05 11:06:23,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-08-05 11:06:23,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2019-08-05 11:06:23,616 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 3 [2019-08-05 11:06:23,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:06:23,617 INFO L475 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2019-08-05 11:06:23,617 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 11:06:23,617 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2019-08-05 11:06:23,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 11:06:23,618 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:06:23,618 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 11:06:23,619 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONASSERT, mainErr4ASSERT_VIOLATIONASSERT, mainErr9ASSERT_VIOLATIONASSERT, mainErr16ASSERT_VIOLATIONASSERT, mainErr17ASSERT_VIOLATIONASSERT, mainErr5ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT, mainErr18ASSERT_VIOLATIONASSERT, mainErr14ASSERT_VIOLATIONASSERT, mainErr11ASSERT_VIOLATIONASSERT, mainErr6ASSERT_VIOLATIONASSERT, mainErr12ASSERT_VIOLATIONASSERT, mainErr13ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONASSERT, mainErr15ASSERT_VIOLATIONASSERT, mainErr7ASSERT_VIOLATIONASSERT, mainErr3ASSERT_VIOLATIONASSERT, mainErr8ASSERT_VIOLATIONASSERT, mainErr10ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:06:23,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:06:23,620 INFO L82 PathProgramCache]: Analyzing trace with hash 36967, now seen corresponding path program 1 times [2019-08-05 11:06:23,620 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:06:23,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:06:23,630 WARN L254 TraceCheckSpWp]: Trace formula consists of 7 conjuncts, 4 conjunts are in the unsatisfiable core [2019-08-05 11:06:23,633 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:06:23,702 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 208 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 101 [2019-08-05 11:06:23,704 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:06:24,001 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-08-05 11:06:24,002 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:06:24,003 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-05 11:06:24,004 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:63, output treesize:101 [2019-08-05 11:06:24,328 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-08-05 11:06:24,395 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 11:06:24,396 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:06:24,396 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 11:06:24,398 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-08-05 11:06:24,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-08-05 11:06:24,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:06:24,399 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand 4 states. [2019-08-05 11:06:24,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:06:24,520 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2019-08-05 11:06:24,520 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-08-05 11:06:24,520 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2019-08-05 11:06:24,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:06:24,522 INFO L225 Difference]: With dead ends: 23 [2019-08-05 11:06:24,522 INFO L226 Difference]: Without dead ends: 23 [2019-08-05 11:06:24,523 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-08-05 11:06:24,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2019-08-05 11:06:24,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2019-08-05 11:06:24,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-08-05 11:06:24,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2019-08-05 11:06:24,528 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 3 [2019-08-05 11:06:24,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:06:24,529 INFO L475 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2019-08-05 11:06:24,529 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-08-05 11:06:24,529 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2019-08-05 11:06:24,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-08-05 11:06:24,529 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:06:24,530 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-08-05 11:06:24,530 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONASSERT, mainErr4ASSERT_VIOLATIONASSERT, mainErr9ASSERT_VIOLATIONASSERT, mainErr16ASSERT_VIOLATIONASSERT, mainErr17ASSERT_VIOLATIONASSERT, mainErr5ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT, mainErr18ASSERT_VIOLATIONASSERT, mainErr14ASSERT_VIOLATIONASSERT, mainErr11ASSERT_VIOLATIONASSERT, mainErr6ASSERT_VIOLATIONASSERT, mainErr12ASSERT_VIOLATIONASSERT, mainErr13ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONASSERT, mainErr15ASSERT_VIOLATIONASSERT, mainErr7ASSERT_VIOLATIONASSERT, mainErr3ASSERT_VIOLATIONASSERT, mainErr8ASSERT_VIOLATIONASSERT, mainErr10ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:06:24,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:06:24,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1146025, now seen corresponding path program 1 times [2019-08-05 11:06:24,532 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:06:24,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:06:24,547 WARN L254 TraceCheckSpWp]: Trace formula consists of 11 conjuncts, 6 conjunts are in the unsatisfiable core [2019-08-05 11:06:24,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:06:24,587 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 208 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 101 [2019-08-05 11:06:24,590 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:06:24,857 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-08-05 11:06:24,858 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:06:24,859 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-05 11:06:24,859 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:63, output treesize:101 [2019-08-05 11:06:25,185 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2019-08-05 11:06:25,187 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 11:06:25,188 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:06:25,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-08-05 11:06:25,188 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-08-05 11:06:25,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-08-05 11:06:25,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-08-05 11:06:25,189 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 5 states. [2019-08-05 11:06:25,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:06:25,382 INFO L93 Difference]: Finished difference Result 37 states and 37 transitions. [2019-08-05 11:06:25,382 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-08-05 11:06:25,382 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 4 [2019-08-05 11:06:25,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:06:25,383 INFO L225 Difference]: With dead ends: 37 [2019-08-05 11:06:25,383 INFO L226 Difference]: Without dead ends: 37 [2019-08-05 11:06:25,384 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-08-05 11:06:25,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-08-05 11:06:25,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 22. [2019-08-05 11:06:25,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-08-05 11:06:25,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 22 transitions. [2019-08-05 11:06:25,389 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 22 transitions. Word has length 4 [2019-08-05 11:06:25,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:06:25,389 INFO L475 AbstractCegarLoop]: Abstraction has 22 states and 22 transitions. [2019-08-05 11:06:25,389 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-08-05 11:06:25,389 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 22 transitions. [2019-08-05 11:06:25,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-08-05 11:06:25,390 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:06:25,390 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-08-05 11:06:25,391 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONASSERT, mainErr4ASSERT_VIOLATIONASSERT, mainErr9ASSERT_VIOLATIONASSERT, mainErr16ASSERT_VIOLATIONASSERT, mainErr17ASSERT_VIOLATIONASSERT, mainErr5ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT, mainErr18ASSERT_VIOLATIONASSERT, mainErr14ASSERT_VIOLATIONASSERT, mainErr11ASSERT_VIOLATIONASSERT, mainErr6ASSERT_VIOLATIONASSERT, mainErr12ASSERT_VIOLATIONASSERT, mainErr13ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONASSERT, mainErr15ASSERT_VIOLATIONASSERT, mainErr7ASSERT_VIOLATIONASSERT, mainErr3ASSERT_VIOLATIONASSERT, mainErr8ASSERT_VIOLATIONASSERT, mainErr10ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:06:25,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:06:25,392 INFO L82 PathProgramCache]: Analyzing trace with hash -876032143, now seen corresponding path program 1 times [2019-08-05 11:06:25,393 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:06:25,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:06:25,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 3 conjunts are in the unsatisfiable core [2019-08-05 11:06:25,420 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:06:25,455 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-08-05 11:06:25,456 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:06:25,472 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:06:25,476 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-08-05 11:06:25,476 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-05 11:06:25,505 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:06:25,506 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 2 xjuncts. [2019-08-05 11:06:25,507 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:13, output treesize:11 [2019-08-05 11:06:25,522 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 11:06:25,523 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:06:25,523 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 11:06:25,524 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 11:06:25,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 11:06:25,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:06:25,525 INFO L87 Difference]: Start difference. First operand 22 states and 22 transitions. Second operand 3 states. [2019-08-05 11:06:25,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:06:25,603 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2019-08-05 11:06:25,604 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 11:06:25,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-08-05 11:06:25,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:06:25,605 INFO L225 Difference]: With dead ends: 21 [2019-08-05 11:06:25,606 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:06:25,607 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 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 11:06:25,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:06:25,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:06:25,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:06:25,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:06:25,608 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-08-05 11:06:25,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:06:25,608 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:06:25,608 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 11:06:25,608 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:06:25,609 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:06:25,613 INFO L202 PluginConnector]: Adding new model Arrays17.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:06:25 BoogieIcfgContainer [2019-08-05 11:06:25,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:06:25,615 INFO L168 Benchmark]: Toolchain (without parser) took 4358.67 ms. Allocated memory was 131.6 MB in the beginning and 194.5 MB in the end (delta: 62.9 MB). Free memory was 109.1 MB in the beginning and 126.6 MB in the end (delta: -17.5 MB). Peak memory consumption was 45.4 MB. Max. memory is 7.1 GB. [2019-08-05 11:06:25,615 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.14 ms. Allocated memory is still 131.6 MB. Free memory is still 109.9 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-08-05 11:06:25,616 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.63 ms. Allocated memory is still 131.6 MB. Free memory was 108.6 MB in the beginning and 106.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:06:25,617 INFO L168 Benchmark]: Boogie Preprocessor took 22.64 ms. Allocated memory is still 131.6 MB. Free memory was 106.5 MB in the beginning and 105.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 11:06:25,618 INFO L168 Benchmark]: RCFGBuilder took 752.52 ms. Allocated memory is still 131.6 MB. Free memory was 105.2 MB in the beginning and 89.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:06:25,619 INFO L168 Benchmark]: TraceAbstraction took 3530.29 ms. Allocated memory was 131.6 MB in the beginning and 194.5 MB in the end (delta: 62.9 MB). Free memory was 88.7 MB in the beginning and 126.6 MB in the end (delta: -37.8 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:06:25,622 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 0.14 ms. Allocated memory is still 131.6 MB. Free memory is still 109.9 MB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.63 ms. Allocated memory is still 131.6 MB. Free memory was 108.6 MB in the beginning and 106.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.64 ms. Allocated memory is still 131.6 MB. Free memory was 106.5 MB in the beginning and 105.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 752.52 ms. Allocated memory is still 131.6 MB. Free memory was 105.2 MB in the beginning and 89.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3530.29 ms. Allocated memory was 131.6 MB in the beginning and 194.5 MB in the end (delta: 62.9 MB). Free memory was 88.7 MB in the beginning and 126.6 MB in the end (delta: -37.8 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 49]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 52]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 57]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 67]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 69]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 53]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 47]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 72]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 62]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 59]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 54]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 60]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 61]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 44]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 64]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 55]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 51]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 56]: assertion always holds For all program executions holds that assertion always holds at this location - PositiveResult [Line: 58]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 19 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 45 locations, 19 error locations. SAFE Result, 3.4s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 37 SDtfs, 89 SDslu, 3 SDs, 0 SdLazy, 171 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=45occurred 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, 4 MinimizatonAttempts, 15 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 2293 SizeOfPredicates, 1 NumberOfNonLiveVariables, 60 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...