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/BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 09:40:12,880 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 09:40:12,882 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 09:40:12,894 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 09:40:12,895 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 09:40:12,896 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 09:40:12,897 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 09:40:12,899 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 09:40:12,900 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 09:40:12,901 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 09:40:12,902 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-07-25 09:40:12,926 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr.epf [2018-07-25 09:40:12,942 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 09:40:12,943 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 09:40:12,944 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 09:40:12,945 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 09:40:12,945 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 09:40:12,945 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 09:40:13,006 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 09:40:13,020 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 09:40:13,023 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 09:40:13,025 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 09:40:13,025 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 09:40:13,026 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl [2018-07-25 09:40:13,026 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl' [2018-07-25 09:40:13,068 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 09:40:13,070 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 09:40:13,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 09:40:13,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 09:40:13,071 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 09:40:13,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:40:13" (1/1) ... [2018-07-25 09:40:13,103 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:40:13" (1/1) ... [2018-07-25 09:40:13,108 WARN L165 Inliner]: Program contained no entry procedure! [2018-07-25 09:40:13,108 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-07-25 09:40:13,108 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-07-25 09:40:13,110 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 09:40:13,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 09:40:13,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 09:40:13,112 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 09:40:13,122 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:40:13" (1/1) ... [2018-07-25 09:40:13,122 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:40:13" (1/1) ... [2018-07-25 09:40:13,123 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:40:13" (1/1) ... [2018-07-25 09:40:13,123 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:40:13" (1/1) ... [2018-07-25 09:40:13,125 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:40:13" (1/1) ... [2018-07-25 09:40:13,130 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:40:13" (1/1) ... [2018-07-25 09:40:13,131 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:40:13" (1/1) ... [2018-07-25 09:40:13,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 09:40:13,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 09:40:13,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 09:40:13,133 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 09:40:13,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:40:13" (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 09:40:13,207 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-07-25 09:40:13,207 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-25 09:40:13,207 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-25 09:40:13,574 INFO L270 CfgBuilder]: Using library mode [2018-07-25 09:40:13,575 INFO L202 PluginConnector]: Adding new model BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 09:40:13 BoogieIcfgContainer [2018-07-25 09:40:13,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 09:40:13,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 09:40:13,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 09:40:13,580 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 09:40:13,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:40:13" (1/2) ... [2018-07-25 09:40:13,581 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@590d3dd3 and model type BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 09:40:13, skipping insertion in model container [2018-07-25 09:40:13,581 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 09:40:13" (2/2) ... [2018-07-25 09:40:13,583 INFO L112 eAbstractionObserver]: Analyzing ICFG BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl [2018-07-25 09:40:13,592 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 09:40:13,600 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-07-25 09:40:13,645 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 09:40:13,646 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 09:40:13,646 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 09:40:13,647 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 09:40:13,647 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 09:40:13,647 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 09:40:13,647 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 09:40:13,648 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 09:40:13,648 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 09:40:13,663 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-07-25 09:40:13,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-07-25 09:40:13,671 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 09:40:13,672 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-07-25 09:40:13,673 INFO L415 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT]=== [2018-07-25 09:40:13,679 INFO L82 PathProgramCache]: Analyzing trace with hash 30176, now seen corresponding path program 1 times [2018-07-25 09:40:13,685 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 09:40:13,946 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 09:40:13,947 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 09:40:13,950 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 09:40:13,955 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 09:40:13,956 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-25 09:40:13,958 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 4 states. [2018-07-25 09:40:14,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 09:40:14,037 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-25 09:40:14,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 09:40:14,040 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2018-07-25 09:40:14,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 09:40:14,052 INFO L225 Difference]: With dead ends: 10 [2018-07-25 09:40:14,052 INFO L226 Difference]: Without dead ends: 8 [2018-07-25 09:40:14,056 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-07-25 09:40:14,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-25 09:40:14,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-07-25 09:40:14,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-07-25 09:40:14,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2018-07-25 09:40:14,092 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 3 [2018-07-25 09:40:14,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 09:40:14,093 INFO L472 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-07-25 09:40:14,093 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 09:40:14,093 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-07-25 09:40:14,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 09:40:14,094 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 09:40:14,094 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 09:40:14,094 INFO L415 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT, mainErr1ASSERT_VIOLATIONASSERT]=== [2018-07-25 09:40:14,094 INFO L82 PathProgramCache]: Analyzing trace with hash 943126, now seen corresponding path program 1 times [2018-07-25 09:40:14,095 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 09:40:15,842 WARN L169 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2018-07-25 09:40:28,858 ERROR L403 Pdr]: Internal query 308#(and (not (exists ((v_x_14 Int) (v_y_16 Int)) (and (exists ((v_x_13 Int) (v_y_15 Int)) (and (or (and (= v_y_15 (+ v_y_16 1)) (<= 50 v_x_14) (= v_x_13 (+ v_x_14 1))) (and (= v_y_16 v_y_15) (< v_x_14 50) (= v_x_13 (+ v_x_14 1)))) (exists ((v_x_12 Int) (v_y_14 Int)) (and (<= 100 v_x_12) (or (and (= v_y_14 (+ v_y_15 1)) (<= 50 v_x_13) (= (+ v_x_13 1) v_x_12)) (and (< v_x_13 50) (= v_y_15 v_y_14) (= (+ v_x_13 1) v_x_12))) (< v_y_14 100))) (< v_x_13 100))) (or (and (<= 50 x) (= v_x_14 (+ x 1)) (= (+ y 1) v_y_16)) (and (= v_y_16 y) (< x 50) (= v_x_14 (+ x 1))))))) (not (and (<= 100 x) (< y 100))) (not (exists ((v_x_12 Int) (v_y_14 Int)) (and (<= 100 v_x_12) (< v_y_14 100) (or (and (= v_x_12 (+ x 1)) (= (+ y 1) v_y_14) (<= 50 x)) (and (= v_x_12 (+ x 1)) (< x 50) (= v_y_14 y)))))) (not (exists ((v_x_15 Int) (v_y_17 Int)) (and (exists ((v_x_14 Int) (v_y_16 Int)) (and (exists ((v_x_13 Int) (v_y_15 Int)) (and (or (and (= v_y_15 (+ v_y_16 1)) (<= 50 v_x_14) (= v_x_13 (+ v_x_14 1))) (and (= v_y_16 v_y_15) (< v_x_14 50) (= v_x_13 (+ v_x_14 1)))) (exists ((v_x_12 Int) (v_y_14 Int)) (and (<= 100 v_x_12) (or (and (= v_y_14 (+ v_y_15 1)) (<= 50 v_x_13) (= (+ v_x_13 1) v_x_12)) (and (< v_x_13 50) (= v_y_15 v_y_14) (= (+ v_x_13 1) v_x_12))) (< v_y_14 100))) (< v_x_13 100))) (or (and (= v_x_14 (+ v_x_15 1)) (< v_x_15 50) (= v_y_17 v_y_16)) (and (= v_x_14 (+ v_x_15 1)) (<= 50 v_x_15) (= v_y_16 (+ v_y_17 1)))))) (or (and (< x 50) (= v_x_15 (+ x 1)) (= v_y_17 y)) (and (= (+ y 1) v_y_17) (<= 50 x) (= v_x_15 (+ x 1))))))) (not (exists ((v_x_13 Int) (v_y_15 Int)) (and (or (and (= v_x_13 (+ x 1)) (<= 50 x) (= (+ y 1) v_y_15)) (and (= v_x_13 (+ x 1)) (= v_y_15 y) (< x 50))) (exists ((v_x_12 Int) (v_y_14 Int)) (and (<= 100 v_x_12) (or (and (= v_y_14 (+ v_y_15 1)) (<= 50 v_x_13) (= (+ v_x_13 1) v_x_12)) (and (< v_x_13 50) (= v_y_15 v_y_14) (= (+ v_x_13 1) v_x_12))) (< v_y_14 100))) (< v_x_13 100))))) && assume x < 100;BeginParallelComposition{ParallelCodeBlock0: assume x < 50;x := x + 1;ParallelCodeBlock1: assume !(x < 50);x := x + 1;y := y + 1;}EndParallelComposition && 220#(exists ((v_x_14 Int) (v_y_16 Int)) (and (exists ((v_x_13 Int) (v_y_15 Int)) (and (or (and (= v_y_15 (+ v_y_16 1)) (<= 50 v_x_14) (= v_x_13 (+ v_x_14 1))) (and (= v_y_16 v_y_15) (< v_x_14 50) (= v_x_13 (+ v_x_14 1)))) (exists ((v_x_12 Int) (v_y_14 Int)) (and (<= 100 v_x_12) (or (and (= v_y_14 (+ v_y_15 1)) (<= 50 v_x_13) (= (+ v_x_13 1) v_x_12)) (and (< v_x_13 50) (= v_y_15 v_y_14) (= (+ v_x_13 1) v_x_12))) (< v_y_14 100))) (< v_x_13 100))) (or (and (<= 50 x) (= v_x_14 (+ x 1)) (= (+ y 1) v_y_16)) (and (= v_y_16 y) (< x 50) (= v_x_14 (+ x 1)))))) was unknown! [2018-07-25 09:40:28,859 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-07-25 09:40:28,862 INFO L168 Benchmark]: Toolchain (without parser) took 15793.36 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 169.2 MB). Peak memory consumption was 169.2 MB. Max. memory is 7.1 GB. [2018-07-25 09:40:28,864 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 09:40:28,865 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 09:40:28,866 INFO L168 Benchmark]: Boogie Preprocessor took 21.07 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 09:40:28,866 INFO L168 Benchmark]: RCFGBuilder took 442.35 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-25 09:40:28,867 INFO L168 Benchmark]: TraceAbstraction took 15285.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 MB. Max. memory is 7.1 GB. [2018-07-25 09:40:28,873 INFO L336 ainManager$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 40.22 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 Preprocessor took 21.07 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 442.35 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 15285.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 148.0 MB). Peak memory consumption was 148.0 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/BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl_AutomizerBpl-pdr.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_09-40-28-891.csv Received shutdown request...