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/ArrayQuantifierEliminationBug04-simplified01.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.24-b8c145f [2019-08-05 11:07:22,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-05 11:07:22,716 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-05 11:07:22,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-05 11:07:22,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-05 11:07:22,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-05 11:07:22,731 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-05 11:07:22,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-05 11:07:22,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-05 11:07:22,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-05 11:07:22,736 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-05 11:07:22,736 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-05 11:07:22,737 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-05 11:07:22,738 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-05 11:07:22,739 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-05 11:07:22,740 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-05 11:07:22,741 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-05 11:07:22,742 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-05 11:07:22,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-05 11:07:22,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-05 11:07:22,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-05 11:07:22,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-05 11:07:22,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-05 11:07:22,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-05 11:07:22,754 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-05 11:07:22,754 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-05 11:07:22,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-05 11:07:22,755 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-05 11:07:22,756 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-05 11:07:22,757 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-05 11:07:22,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-05 11:07:22,758 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-05 11:07:22,759 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-05 11:07:22,760 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-05 11:07:22,761 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-05 11:07:22,762 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-05 11:07:22,763 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-05 11:07:22,763 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-05 11:07:22,763 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-05 11:07:22,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-05 11:07:22,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-05 11:07:22,808 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-05 11:07:22,822 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-05 11:07:22,825 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-05 11:07:22,826 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2019-08-05 11:07:22,827 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2019-08-05 11:07:22,827 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/quantifier/ArrayQuantifierEliminationBug04-simplified01.bpl [2019-08-05 11:07:22,828 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/quantifier/ArrayQuantifierEliminationBug04-simplified01.bpl' [2019-08-05 11:07:22,866 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-05 11:07:22,867 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-05 11:07:22,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-08-05 11:07:22,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-08-05 11:07:22,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-08-05 11:07:22,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ArrayQuantifierEliminationBug04-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:22" (1/1) ... [2019-08-05 11:07:22,897 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ArrayQuantifierEliminationBug04-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:22" (1/1) ... [2019-08-05 11:07:22,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-08-05 11:07:22,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-05 11:07:22,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-05 11:07:22,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-05 11:07:22,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ArrayQuantifierEliminationBug04-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:22" (1/1) ... [2019-08-05 11:07:22,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ArrayQuantifierEliminationBug04-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:22" (1/1) ... [2019-08-05 11:07:22,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ArrayQuantifierEliminationBug04-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:22" (1/1) ... [2019-08-05 11:07:22,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ArrayQuantifierEliminationBug04-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:22" (1/1) ... [2019-08-05 11:07:22,940 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ArrayQuantifierEliminationBug04-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:22" (1/1) ... [2019-08-05 11:07:22,942 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ArrayQuantifierEliminationBug04-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:22" (1/1) ... [2019-08-05 11:07:22,944 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ArrayQuantifierEliminationBug04-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:22" (1/1) ... [2019-08-05 11:07:22,946 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-05 11:07:22,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-05 11:07:22,947 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-05 11:07:22,947 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-05 11:07:22,948 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ArrayQuantifierEliminationBug04-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:22" (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 11:07:23,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-05 11:07:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-08-05 11:07:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-05 11:07:23,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-05 11:07:23,023 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-05 11:07:23,024 INFO L130 BoogieDeclarations]: Found specification of procedure ~malloc [2019-08-05 11:07:23,024 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-08-05 11:07:23,620 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-05 11:07:23,621 INFO L283 CfgBuilder]: Removed 6 assume(true) statements. [2019-08-05 11:07:23,622 INFO L202 PluginConnector]: Adding new model ArrayQuantifierEliminationBug04-simplified01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:07:23 BoogieIcfgContainer [2019-08-05 11:07:23,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-05 11:07:23,624 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-08-05 11:07:23,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-08-05 11:07:23,627 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-08-05 11:07:23,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArrayQuantifierEliminationBug04-simplified01.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.08 11:07:22" (1/2) ... [2019-08-05 11:07:23,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cb21e3c and model type ArrayQuantifierEliminationBug04-simplified01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.08 11:07:23, skipping insertion in model container [2019-08-05 11:07:23,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ArrayQuantifierEliminationBug04-simplified01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.08 11:07:23" (2/2) ... [2019-08-05 11:07:23,631 INFO L109 eAbstractionObserver]: Analyzing ICFG ArrayQuantifierEliminationBug04-simplified01.bpl [2019-08-05 11:07:23,641 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:ForwardPredicates Determinization: PREDICATE_ABSTRACTION [2019-08-05 11:07:23,649 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-08-05 11:07:23,662 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-08-05 11:07:23,687 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-08-05 11:07:23,688 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-08-05 11:07:23,688 INFO L378 AbstractCegarLoop]: Hoare is false [2019-08-05 11:07:23,688 INFO L379 AbstractCegarLoop]: Compute interpolants for ForwardPredicates [2019-08-05 11:07:23,689 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-08-05 11:07:23,689 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-08-05 11:07:23,689 INFO L382 AbstractCegarLoop]: Difference is false [2019-08-05 11:07:23,689 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-08-05 11:07:23,689 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-08-05 11:07:23,703 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2019-08-05 11:07:23,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-08-05 11:07:23,712 INFO L391 BasicCegarLoop]: Found error trace [2019-08-05 11:07:23,713 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-08-05 11:07:23,716 INFO L418 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-08-05 11:07:23,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-08-05 11:07:23,722 INFO L82 PathProgramCache]: Analyzing trace with hash 49238, now seen corresponding path program 1 times [2019-08-05 11:07:23,777 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2019-08-05 11:07:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-08-05 11:07:24,080 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 22 conjunts are in the unsatisfiable core [2019-08-05 11:07:24,088 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-08-05 11:07:24,262 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 17 treesize of output 15 [2019-08-05 11:07:24,264 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-05 11:07:24,475 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2019-08-05 11:07:24,477 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:07:24,510 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.offset_31|, |v_#memory_$Pointer$.base_32|], 2=[|#memory_$Pointer$.base|, |#memory_$Pointer$.offset|, |v_#memory_int_33|, |v_#memory_$Pointer$.offset_32|, |v_#memory_$Pointer$.base_31|]} [2019-08-05 11:07:24,698 INFO L341 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2019-08-05 11:07:24,699 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 127 treesize of output 23 [2019-08-05 11:07:24,699 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-05 11:07:24,954 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2019-08-05 11:07:24,955 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:07:25,178 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 13 [2019-08-05 11:07:25,179 INFO L341 Elim1Store]: treesize reduction 51, result has 22.7 percent of original size [2019-08-05 11:07:25,180 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 127 treesize of output 23 [2019-08-05 11:07:25,181 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-08-05 11:07:25,315 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-08-05 11:07:25,315 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:07:25,348 INFO L496 ElimStorePlain]: Start of recursive call 5: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-08-05 11:07:25,450 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2019-08-05 11:07:25,451 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:07:25,467 INFO L496 ElimStorePlain]: Start of recursive call 6: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-08-05 11:07:25,699 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2019-08-05 11:07:25,699 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:07:25,710 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 542 treesize of output 486 [2019-08-05 11:07:25,718 INFO L496 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2019-08-05 11:07:25,982 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 35 [2019-08-05 11:07:25,982 INFO L567 ElimStorePlain]: treesize reduction 473, result has 10.6 percent of original size [2019-08-05 11:07:26,002 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:07:26,003 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2019-08-05 11:07:26,005 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:07:26,008 INFO L496 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2019-08-05 11:07:26,224 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2019-08-05 11:07:26,225 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:07:26,318 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:07:26,318 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 23 treesize of output 27 [2019-08-05 11:07:26,319 INFO L320 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-08-05 11:07:26,320 INFO L496 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-08-05 11:07:26,334 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-05 11:07:26,335 INFO L496 ElimStorePlain]: Start of recursive call 1: 11 dim-0 vars, 1 dim-1 vars, 7 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-05 11:07:26,335 INFO L221 ElimStorePlain]: Needed 9 recursive calls to eliminate 19 variables, input treesize:337, output treesize:3 [2019-08-05 11:07:26,342 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 11:07:26,344 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-08-05 11:07:26,345 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-08-05 11:07:26,348 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-08-05 11:07:26,359 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-08-05 11:07:26,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-08-05 11:07:26,361 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 3 states. [2019-08-05 11:07:26,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-08-05 11:07:26,377 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions. [2019-08-05 11:07:26,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-08-05 11:07:26,382 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2019-08-05 11:07:26,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-08-05 11:07:26,390 INFO L225 Difference]: With dead ends: 4 [2019-08-05 11:07:26,390 INFO L226 Difference]: Without dead ends: 0 [2019-08-05 11:07:26,392 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 11:07:26,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-08-05 11:07:26,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-08-05 11:07:26,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-08-05 11:07:26,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-08-05 11:07:26,419 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2019-08-05 11:07:26,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-08-05 11:07:26,420 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-08-05 11:07:26,420 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-08-05 11:07:26,420 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-08-05 11:07:26,420 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-08-05 11:07:26,426 INFO L202 PluginConnector]: Adding new model ArrayQuantifierEliminationBug04-simplified01.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.08 11:07:26 BoogieIcfgContainer [2019-08-05 11:07:26,426 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-08-05 11:07:26,429 INFO L168 Benchmark]: Toolchain (without parser) took 3561.04 ms. Allocated memory was 133.7 MB in the beginning and 170.9 MB in the end (delta: 37.2 MB). Free memory was 111.0 MB in the beginning and 65.2 MB in the end (delta: 45.8 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2019-08-05 11:07:26,430 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 133.7 MB. Free memory was 112.4 MB in the beginning and 112.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-08-05 11:07:26,431 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.32 ms. Allocated memory is still 133.7 MB. Free memory was 110.8 MB in the beginning and 108.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-05 11:07:26,432 INFO L168 Benchmark]: Boogie Preprocessor took 25.28 ms. Allocated memory is still 133.7 MB. Free memory was 108.7 MB in the beginning and 107.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-08-05 11:07:26,433 INFO L168 Benchmark]: RCFGBuilder took 676.25 ms. Allocated memory is still 133.7 MB. Free memory was 107.2 MB in the beginning and 86.5 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-08-05 11:07:26,434 INFO L168 Benchmark]: TraceAbstraction took 2802.27 ms. Allocated memory was 133.7 MB in the beginning and 170.9 MB in the end (delta: 37.2 MB). Free memory was 86.3 MB in the beginning and 65.2 MB in the end (delta: 21.1 MB). Peak memory consumption was 58.3 MB. Max. memory is 7.1 GB. [2019-08-05 11:07:26,438 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 0.16 ms. Allocated memory is still 133.7 MB. Free memory was 112.4 MB in the beginning and 112.2 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 52.32 ms. Allocated memory is still 133.7 MB. Free memory was 110.8 MB in the beginning and 108.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.28 ms. Allocated memory is still 133.7 MB. Free memory was 108.7 MB in the beginning and 107.4 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 676.25 ms. Allocated memory is still 133.7 MB. Free memory was 107.2 MB in the beginning and 86.5 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2802.27 ms. Allocated memory was 133.7 MB in the beginning and 170.9 MB in the end (delta: 37.2 MB). Free memory was 86.3 MB in the beginning and 65.2 MB in the end (delta: 21.1 MB). Peak memory consumption was 58.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 26]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 locations, 1 error locations. SAFE Result, 2.7s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 2 SDtfs, 2 SDslu, 0 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 8 SizeOfPredicates, 21 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...