java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-ArraysIntegefied.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 09:42:04,734 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 09:42:04,736 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 09:42:04,750 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 09:42:04,750 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 09:42:04,751 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 09:42:04,753 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 09:42:04,756 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 09:42:04,758 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 09:42:04,758 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 09:42:04,760 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 09:42:04,761 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 09:42:04,762 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 09:42:04,765 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 09:42:04,771 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 09:42:04,772 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 09:42:04,775 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 09:42:04,777 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 09:42:04,783 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 09:42:04,787 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 09:42:04,791 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 09:42:04,792 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 09:42:04,795 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 09:42:04,795 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 09:42:04,796 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 09:42:04,797 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 09:42:04,798 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 09:42:04,800 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 09:42:04,801 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 09:42:04,804 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 09:42:04,805 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 09:42:04,805 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-25 09:42:04,806 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-25 09:42:04,806 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-25 09:42:04,808 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-25 09:42:04,809 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-25 09:42:04,809 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr.epf [2018-07-25 09:42:04,823 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 09:42:04,823 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 09:42:04,824 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 09:42:04,824 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 09:42:04,824 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 09:42:04,825 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 09:42:04,869 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 09:42:04,882 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 09:42:04,888 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 09:42:04,890 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 09:42:04,890 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 09:42:04,891 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-ArraysIntegefied.bpl [2018-07-25 09:42:04,892 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/Luxembourg-ArraysIntegefied.bpl' [2018-07-25 09:42:04,946 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 09:42:04,948 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 09:42:04,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 09:42:04,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 09:42:04,951 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 09:42:04,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:42:04" (1/1) ... [2018-07-25 09:42:04,984 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:42:04" (1/1) ... [2018-07-25 09:42:04,988 WARN L165 Inliner]: Program contained no entry procedure! [2018-07-25 09:42:04,989 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-07-25 09:42:04,989 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-07-25 09:42:04,991 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 09:42:04,992 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 09:42:04,992 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 09:42:04,992 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 09:42:05,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:42:04" (1/1) ... [2018-07-25 09:42:05,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:42:04" (1/1) ... [2018-07-25 09:42:05,004 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:42:04" (1/1) ... [2018-07-25 09:42:05,004 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:42:04" (1/1) ... [2018-07-25 09:42:05,006 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:42:04" (1/1) ... [2018-07-25 09:42:05,011 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:42:04" (1/1) ... [2018-07-25 09:42:05,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:42:04" (1/1) ... [2018-07-25 09:42:05,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 09:42:05,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 09:42:05,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 09:42:05,015 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 09:42:05,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:42:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-07-25 09:42:05,082 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-07-25 09:42:05,083 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-25 09:42:05,083 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-25 09:42:05,645 INFO L270 CfgBuilder]: Using library mode [2018-07-25 09:42:05,646 INFO L202 PluginConnector]: Adding new model Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 09:42:05 BoogieIcfgContainer [2018-07-25 09:42:05,646 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 09:42:05,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 09:42:05,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 09:42:05,651 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 09:42:05,651 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:42:04" (1/2) ... [2018-07-25 09:42:05,653 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e2a1b32 and model type Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 09:42:05, skipping insertion in model container [2018-07-25 09:42:05,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "Luxembourg-ArraysIntegefied.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 09:42:05" (2/2) ... [2018-07-25 09:42:05,655 INFO L112 eAbstractionObserver]: Analyzing ICFG Luxembourg-ArraysIntegefied.bpl [2018-07-25 09:42:05,664 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 09:42:05,675 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 09:42:05,728 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 09:42:05,728 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 09:42:05,729 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 09:42:05,729 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 09:42:05,729 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 09:42:05,729 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 09:42:05,729 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 09:42:05,729 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 09:42:05,730 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 09:42:05,749 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-25 09:42:05,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-07-25 09:42:05,766 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 09:42:05,767 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-07-25 09:42:05,775 INFO L415 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 09:42:05,783 INFO L82 PathProgramCache]: Analyzing trace with hash 75054, now seen corresponding path program 1 times [2018-07-25 09:42:05,790 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 09:42:05,922 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 09:42:05,922 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 09:42:05,927 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 09:42:05,933 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 09:42:05,934 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-25 09:42:05,937 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-25 09:42:06,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 09:42:06,022 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2018-07-25 09:42:06,022 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 09:42:06,024 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2018-07-25 09:42:06,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 09:42:06,035 INFO L225 Difference]: With dead ends: 11 [2018-07-25 09:42:06,035 INFO L226 Difference]: Without dead ends: 5 [2018-07-25 09:42:06,038 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-25 09:42:06,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5 states. [2018-07-25 09:42:06,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5 to 5. [2018-07-25 09:42:06,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2018-07-25 09:42:06,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 5 transitions. [2018-07-25 09:42:06,071 INFO L78 Accepts]: Start accepts. Automaton has 5 states and 5 transitions. Word has length 3 [2018-07-25 09:42:06,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 09:42:06,072 INFO L472 AbstractCegarLoop]: Abstraction has 5 states and 5 transitions. [2018-07-25 09:42:06,072 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 09:42:06,072 INFO L276 IsEmpty]: Start isEmpty. Operand 5 states and 5 transitions. [2018-07-25 09:42:06,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 09:42:06,073 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 09:42:06,073 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 09:42:06,073 INFO L415 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 09:42:06,073 INFO L82 PathProgramCache]: Analyzing trace with hash 2342053, now seen corresponding path program 1 times [2018-07-25 09:42:06,074 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 09:42:07,951 WARN L169 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2018-07-25 09:42:20,006 ERROR L403 Pdr]: Internal query 303#(and (not (exists ((v_main_a_y_35 Int)) (and (or (and (= main_a_y (+ v_main_a_y_35 1)) (not (= main_y main_x))) (and (= main_y main_x) (= (+ main_a_x 1) v_main_a_y_35))) (< 0 v_main_a_y_35) (or (and (= main_a_x 999) (not (= main_y main_x))) (and (= main_y main_x) (= 999 v_main_a_y_35)))))) (not (exists ((v_main_a_y_38 Int) (v_main_a_x_36 Int)) (and (or (and (= main_y main_x) (= (+ v_main_a_y_38 1) v_main_a_x_36)) (and (= (+ main_a_x 1) v_main_a_x_36) (not (= main_y main_x)))) (or (and (= main_y main_x) (= v_main_a_y_38 (+ main_a_x 1))) (and (not (= main_y main_x)) (= (+ v_main_a_y_38 1) main_a_y))) (exists ((v_main_a_y_37 Int) (v_main_a_x_35 Int)) (and (exists ((v_main_a_y_36 Int) (v_main_a_x_34 Int)) (and (or (and (= (+ v_main_a_x_35 1) v_main_a_x_34) (not (= main_y main_x))) (and (= main_y main_x) (= (+ v_main_a_y_36 1) v_main_a_x_34))) (exists ((v_main_a_y_35 Int)) (and (or (and (= 999 v_main_a_x_34) (not (= main_y main_x))) (and (= main_y main_x) (= 999 v_main_a_y_35))) (< 0 v_main_a_y_35) (or (and (= main_y main_x) (= (+ v_main_a_x_34 1) v_main_a_y_35)) (and (= (+ v_main_a_y_35 1) v_main_a_y_36) (not (= main_y main_x)))))) (or (and (= main_y main_x) (= (+ v_main_a_x_35 1) v_main_a_y_36)) (and (= (+ v_main_a_y_36 1) v_main_a_y_37) (not (= main_y main_x)))))) (or (and (= (+ v_main_a_y_37 1) v_main_a_y_38) (not (= main_y main_x))) (and (= main_y main_x) (= (+ v_main_a_x_36 1) v_main_a_y_37))) (or (and (= (+ v_main_a_x_36 1) v_main_a_x_35) (not (= main_y main_x))) (and (= main_y main_x) (= (+ v_main_a_y_37 1) v_main_a_x_35)))))))) (not (exists ((v_main_a_x_35 Int) (v_main_a_y_37 Int)) (and (exists ((v_main_a_y_36 Int) (v_main_a_x_34 Int)) (and (or (and (= (+ v_main_a_x_35 1) v_main_a_x_34) (not (= main_y main_x))) (and (= main_y main_x) (= (+ v_main_a_y_36 1) v_main_a_x_34))) (exists ((v_main_a_y_35 Int)) (and (or (and (= 999 v_main_a_x_34) (not (= main_y main_x))) (and (= main_y main_x) (= 999 v_main_a_y_35))) (< 0 v_main_a_y_35) (or (and (= main_y main_x) (= (+ v_main_a_x_34 1) v_main_a_y_35)) (and (= (+ v_main_a_y_35 1) v_main_a_y_36) (not (= main_y main_x)))))) (or (and (= main_y main_x) (= (+ v_main_a_x_35 1) v_main_a_y_36)) (and (= (+ v_main_a_y_36 1) v_main_a_y_37) (not (= main_y main_x)))))) (or (and (= (+ main_a_x 1) v_main_a_x_35) (not (= main_y main_x))) (and (= main_y main_x) (= (+ v_main_a_y_37 1) v_main_a_x_35))) (or (and (= main_y main_x) (= v_main_a_y_37 (+ main_a_x 1))) (and (not (= main_y main_x)) (= (+ v_main_a_y_37 1) main_a_y)))))) (not (exists ((v_main_a_y_36 Int) (v_main_a_x_34 Int)) (and (exists ((v_main_a_y_35 Int)) (and (or (and (= 999 v_main_a_x_34) (not (= main_y main_x))) (and (= main_y main_x) (= 999 v_main_a_y_35))) (< 0 v_main_a_y_35) (or (and (= main_y main_x) (= (+ v_main_a_x_34 1) v_main_a_y_35)) (and (= (+ v_main_a_y_35 1) v_main_a_y_36) (not (= main_y main_x)))))) (or (and (= (+ main_a_x 1) v_main_a_x_34) (not (= main_y main_x))) (and (= main_y main_x) (= (+ v_main_a_y_36 1) v_main_a_x_34))) (or (and (= main_y main_x) (= v_main_a_y_36 (+ main_a_x 1))) (and (not (= main_y main_x)) (= main_a_y (+ v_main_a_y_36 1))))))) (not (and (= main_a_x 1000) (< 0 main_a_y)))) && assume true;a_x := a_x + 1;BeginParallelComposition{ParallelCodeBlock0: assume x == y;a_y := a_x + 1;ParallelCodeBlock1: assume !(x == y);}EndParallelCompositiona_y := a_y - 1;BeginParallelComposition{ParallelCodeBlock0: assume y == x;a_x := a_y + 1;ParallelCodeBlock1: assume !(y == x);}EndParallelComposition && 209#(exists ((v_main_a_x_35 Int) (v_main_a_y_37 Int)) (and (exists ((v_main_a_y_36 Int) (v_main_a_x_34 Int)) (and (or (and (= (+ v_main_a_x_35 1) v_main_a_x_34) (not (= main_y main_x))) (and (= main_y main_x) (= (+ v_main_a_y_36 1) v_main_a_x_34))) (exists ((v_main_a_y_35 Int)) (and (or (and (= 999 v_main_a_x_34) (not (= main_y main_x))) (and (= main_y main_x) (= 999 v_main_a_y_35))) (< 0 v_main_a_y_35) (or (and (= main_y main_x) (= (+ v_main_a_x_34 1) v_main_a_y_35)) (and (= (+ v_main_a_y_35 1) v_main_a_y_36) (not (= main_y main_x)))))) (or (and (= main_y main_x) (= (+ v_main_a_x_35 1) v_main_a_y_36)) (and (= (+ v_main_a_y_36 1) v_main_a_y_37) (not (= main_y main_x)))))) (or (and (= (+ main_a_x 1) v_main_a_x_35) (not (= main_y main_x))) (and (= main_y main_x) (= (+ v_main_a_y_37 1) v_main_a_x_35))) (or (and (= main_y main_x) (= v_main_a_y_37 (+ main_a_x 1))) (and (not (= main_y main_x)) (= (+ v_main_a_y_37 1) main_a_y))))) was unknown! [2018-07-25 09:42:20,007 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Solver returned unknown at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.blockingPhase(Pdr.java:405) at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.computePdr(Pdr.java:289) at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.(Pdr.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructPdr(TraceCheckConstructor.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedRefinementStrategy.getTraceCheck(FixedRefinementStrategy.java:130) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:220) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:194) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:368) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:309) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:151) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:120) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-07-25 09:42:20,011 INFO L168 Benchmark]: Toolchain (without parser) took 15064.10 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 126.8 MB). Peak memory consumption was 126.8 MB. Max. memory is 7.1 GB. [2018-07-25 09:42:20,013 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 09:42:20,014 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.76 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 09:42:20,015 INFO L168 Benchmark]: Boogie Preprocessor took 22.33 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 09:42:20,016 INFO L168 Benchmark]: RCFGBuilder took 631.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-25 09:42:20,017 INFO L168 Benchmark]: TraceAbstraction took 14362.66 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-07-25 09:42:20,021 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 42.76 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.33 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 631.61 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14362.66 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Solver returned unknown de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Solver returned unknown: de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.blockingPhase(Pdr.java:405) RESULT: Ultimate could not prove your program: Toolchain returned no result. Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/Luxembourg-ArraysIntegefied.bpl_AutomizerBpl-pdr.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_09-42-20-041.csv Received shutdown request...