java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf -i ../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 09:11:59,977 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 09:11:59,979 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 09:11:59,992 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 09:11:59,992 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 09:11:59,993 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 09:11:59,994 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 09:11:59,996 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 09:11:59,998 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 09:11:59,999 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 09:12:00,000 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-26 09:12:00,041 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf [2018-09-26 09:12:00,049 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 09:12:00,049 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 09:12:00,051 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 09:12:00,051 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 09:12:00,051 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 09:12:00,052 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 09:12:00,052 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 09:12:00,098 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 09:12:00,114 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 09:12:00,121 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 09:12:00,122 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 09:12:00,123 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 09:12:00,124 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl [2018-09-26 09:12:00,124 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl' [2018-09-26 09:12:00,183 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 09:12:00,188 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 09:12:00,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 09:12:00,189 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 09:12:00,189 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 09:12:00,212 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 26.09 09:12:00" (1/1) ... [2018-09-26 09:12:00,225 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 26.09 09:12:00" (1/1) ... [2018-09-26 09:12:00,230 WARN L165 Inliner]: Program contained no entry procedure! [2018-09-26 09:12:00,231 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-09-26 09:12:00,231 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-09-26 09:12:00,233 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 09:12:00,235 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 09:12:00,235 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 09:12:00,235 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 09:12:00,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:12:00" (1/1) ... [2018-09-26 09:12:00,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:12:00" (1/1) ... [2018-09-26 09:12:00,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:12:00" (1/1) ... [2018-09-26 09:12:00,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:12:00" (1/1) ... [2018-09-26 09:12:00,250 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:12:00" (1/1) ... [2018-09-26 09:12:00,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:12:00" (1/1) ... [2018-09-26 09:12:00,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:12:00" (1/1) ... [2018-09-26 09:12:00,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 09:12:00,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 09:12:00,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 09:12:00,258 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 09:12:00,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:12:00" (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 [2018-09-26 09:12:00,338 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-09-26 09:12:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-26 09:12:00,338 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-26 09:12:00,621 INFO L343 CfgBuilder]: Using library mode [2018-09-26 09:12:00,622 INFO L202 PluginConnector]: Adding new model BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:12:00 BoogieIcfgContainer [2018-09-26 09:12:00,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 09:12:00,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 09:12:00,624 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 09:12:00,627 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 09:12:00,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:12:00" (1/2) ... [2018-09-26 09:12:00,629 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c348c9f and model type BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:12:00, skipping insertion in model container [2018-09-26 09:12:00,629 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:12:00" (2/2) ... [2018-09-26 09:12:00,631 INFO L112 eAbstractionObserver]: Analyzing ICFG BeyerHenzingerMajumdarRybalchenko-PLDI2007-Figure4.bpl [2018-09-26 09:12:00,641 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 09:12:00,650 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-09-26 09:12:00,702 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 09:12:00,703 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 09:12:00,703 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 09:12:00,703 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 09:12:00,704 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 09:12:00,704 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 09:12:00,704 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 09:12:00,704 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 09:12:00,705 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 09:12:00,722 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2018-09-26 09:12:00,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-09-26 09:12:00,739 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:12:00,740 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-09-26 09:12:00,742 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:12:00,751 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:12:00,751 INFO L82 PathProgramCache]: Analyzing trace with hash 30176, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 09:12:00,787 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:12:01,077 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:12:01,077 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-09-26 09:12:01,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 09:12:01,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 09:12:01,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-09-26 09:12:01,090 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 4 states. [2018-09-26 09:12:01,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:12:01,173 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-09-26 09:12:01,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 09:12:01,175 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2018-09-26 09:12:01,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:12:01,185 INFO L225 Difference]: With dead ends: 10 [2018-09-26 09:12:01,186 INFO L226 Difference]: Without dead ends: 8 [2018-09-26 09:12:01,189 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-09-26 09:12:01,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-09-26 09:12:01,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-09-26 09:12:01,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-09-26 09:12:01,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2018-09-26 09:12:01,224 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 3 [2018-09-26 09:12:01,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:12:01,225 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-09-26 09:12:01,225 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 09:12:01,225 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-09-26 09:12:01,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 09:12:01,226 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:12:01,226 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 09:12:01,226 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONASSERT, mainErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:12:01,227 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:12:01,227 INFO L82 PathProgramCache]: Analyzing trace with hash 943126, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 09:12:01,239 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:12:02,342 WARN L178 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-09-26 09:12:03,079 WARN L178 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2018-09-26 09:12:16,146 ERROR L410 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! [2018-09-26 09:12:16,347 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 09:12:16,348 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:412) at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.computePdr(Pdr.java:291) at de.uni_freiburg.informatik.ultimate.lib.pdr.Pdr.(Pdr.java:199) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructPdr(TraceCheckConstructor.java:274) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:192) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.FixedRefinementStrategy.getTraceCheck(FixedRefinementStrategy.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:198) 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:429) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:375) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:313) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:124) 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-09-26 09:12:16,353 INFO L168 Benchmark]: Toolchain (without parser) took 16169.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 192.9 MB). Peak memory consumption was 192.9 MB. Max. memory is 7.1 GB. [2018-09-26 09:12:16,354 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:12:16,355 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.49 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:12:16,356 INFO L168 Benchmark]: Boogie Preprocessor took 23.04 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:12:16,356 INFO L168 Benchmark]: RCFGBuilder took 364.23 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-26 09:12:16,357 INFO L168 Benchmark]: TraceAbstraction took 15728.86 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 171.8 MB). Peak memory consumption was 171.8 MB. Max. memory is 7.1 GB. [2018-09-26 09:12:16,362 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.20 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 45.49 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 23.04 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 364.23 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 15728.86 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: 171.8 MB). Peak memory consumption was 171.8 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:412) 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-z3.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_09-12-16-374.csv Received shutdown request...