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/HiddenEqualityWithBranches.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 09:40:35,914 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 09:40:35,917 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 09:40:35,934 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 09:40:35,935 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 09:40:35,936 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 09:40:35,937 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 09:40:35,940 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 09:40:35,943 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 09:40:35,946 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 09:40:35,952 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 09:40:35,953 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 09:40:35,955 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 09:40:35,956 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 09:40:35,959 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 09:40:35,961 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 09:40:35,962 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 09:40:35,964 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 09:40:35,969 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 09:40:35,972 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 09:40:35,973 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 09:40:35,974 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 09:40:35,977 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 09:40:35,977 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 09:40:35,977 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 09:40:35,978 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 09:40:35,979 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 09:40:35,979 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 09:40:35,980 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 09:40:35,981 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 09:40:35,981 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 09:40:35,982 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-25 09:40:35,982 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-25 09:40:35,982 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-25 09:40:35,983 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-25 09:40:35,984 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-25 09:40:35,984 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr.epf [2018-07-25 09:40:35,995 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 09:40:35,995 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 09:40:35,996 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 09:40:35,997 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 09:40:35,997 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 09:40:35,997 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 09:40:36,056 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 09:40:36,070 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 09:40:36,074 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 09:40:36,076 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 09:40:36,076 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 09:40:36,077 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HiddenEqualityWithBranches.bpl [2018-07-25 09:40:36,077 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/toy/tooDifficultLoopInvariant/HiddenEqualityWithBranches.bpl' [2018-07-25 09:40:36,126 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 09:40:36,127 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 09:40:36,128 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 09:40:36,128 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 09:40:36,129 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 09:40:36,149 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:40:36" (1/1) ... [2018-07-25 09:40:36,162 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:40:36" (1/1) ... [2018-07-25 09:40:36,166 WARN L165 Inliner]: Program contained no entry procedure! [2018-07-25 09:40:36,167 WARN L168 Inliner]: Missing entry procedures: [ULTIMATE.start] [2018-07-25 09:40:36,167 WARN L175 Inliner]: Fallback enabled. All procedures will be processed. [2018-07-25 09:40:36,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 09:40:36,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 09:40:36,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 09:40:36,170 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 09:40:36,181 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:40:36" (1/1) ... [2018-07-25 09:40:36,181 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:40:36" (1/1) ... [2018-07-25 09:40:36,182 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:40:36" (1/1) ... [2018-07-25 09:40:36,182 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:40:36" (1/1) ... [2018-07-25 09:40:36,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:40:36" (1/1) ... [2018-07-25 09:40:36,191 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:40:36" (1/1) ... [2018-07-25 09:40:36,192 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:40:36" (1/1) ... [2018-07-25 09:40:36,194 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 09:40:36,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 09:40:36,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 09:40:36,195 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 09:40:36,196 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:40:36" (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 09:40:36,273 INFO L124 BoogieDeclarations]: Specification and implementation of procedure main given in one single declaration [2018-07-25 09:40:36,273 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-07-25 09:40:36,274 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-07-25 09:40:36,630 INFO L270 CfgBuilder]: Using library mode [2018-07-25 09:40:36,630 INFO L202 PluginConnector]: Adding new model HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 09:40:36 BoogieIcfgContainer [2018-07-25 09:40:36,631 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 09:40:36,633 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 09:40:36,633 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 09:40:36,646 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 09:40:36,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 09:40:36" (1/2) ... [2018-07-25 09:40:36,652 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d63875b and model type HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 09:40:36, skipping insertion in model container [2018-07-25 09:40:36,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "HiddenEqualityWithBranches.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 09:40:36" (2/2) ... [2018-07-25 09:40:36,655 INFO L112 eAbstractionObserver]: Analyzing ICFG HiddenEqualityWithBranches.bpl [2018-07-25 09:40:36,670 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 09:40:36,680 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 09:40:36,748 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 09:40:36,749 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 09:40:36,749 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 09:40:36,750 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 09:40:36,750 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 09:40:36,750 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 09:40:36,750 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 09:40:36,750 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 09:40:36,751 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 09:40:36,767 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states. [2018-07-25 09:40:36,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2018-07-25 09:40:36,776 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 09:40:36,777 INFO L354 BasicCegarLoop]: trace histogram [1, 1] [2018-07-25 09:40:36,778 INFO L415 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 09:40:36,783 INFO L82 PathProgramCache]: Analyzing trace with hash 979, now seen corresponding path program 1 times [2018-07-25 09:40:36,789 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 09:40:36,868 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 09:40:36,868 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2018-07-25 09:40:36,871 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 09:40:36,876 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 09:40:36,877 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 09:40:36,879 INFO L87 Difference]: Start difference. First operand 4 states. Second operand 3 states. [2018-07-25 09:40:36,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 09:40:36,946 INFO L93 Difference]: Finished difference Result 6 states and 7 transitions. [2018-07-25 09:40:36,947 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 09:40:36,948 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2018-07-25 09:40:36,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 09:40:36,960 INFO L225 Difference]: With dead ends: 6 [2018-07-25 09:40:36,961 INFO L226 Difference]: Without dead ends: 4 [2018-07-25 09:40:36,964 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 09:40:36,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4 states. [2018-07-25 09:40:37,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4 to 4. [2018-07-25 09:40:37,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2018-07-25 09:40:37,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 4 transitions. [2018-07-25 09:40:37,005 INFO L78 Accepts]: Start accepts. Automaton has 4 states and 4 transitions. Word has length 2 [2018-07-25 09:40:37,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 09:40:37,005 INFO L472 AbstractCegarLoop]: Abstraction has 4 states and 4 transitions. [2018-07-25 09:40:37,005 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 09:40:37,006 INFO L276 IsEmpty]: Start isEmpty. Operand 4 states and 4 transitions. [2018-07-25 09:40:37,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-07-25 09:40:37,006 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 09:40:37,006 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-07-25 09:40:37,007 INFO L415 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 09:40:37,007 INFO L82 PathProgramCache]: Analyzing trace with hash 30584, now seen corresponding path program 1 times [2018-07-25 09:40:37,007 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 09:40:39,178 WARN L169 SmtUtils]: Spent 1000.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2018-07-25 09:40:41,550 WARN L169 SmtUtils]: Spent 2.13 s on a formula simplification that was a NOOP. DAG size: 98 [2018-07-25 09:40:42,191 WARN L169 SmtUtils]: Spent 534.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2018-07-25 09:40:45,751 WARN L169 SmtUtils]: Spent 3.43 s on a formula simplification that was a NOOP. DAG size: 149 [2018-07-25 09:40:49,089 WARN L169 SmtUtils]: Spent 2.98 s on a formula simplification that was a NOOP. DAG size: 122 [2018-07-25 09:40:51,888 WARN L169 SmtUtils]: Spent 2.64 s on a formula simplification that was a NOOP. DAG size: 123 [2018-07-25 09:41:03,932 WARN L169 SmtUtils]: Spent 11.62 s on a formula simplification that was a NOOP. DAG size: 189 [2018-07-25 09:41:08,652 WARN L169 SmtUtils]: Spent 3.86 s on a formula simplification that was a NOOP. DAG size: 146 [2018-07-25 09:41:22,203 WARN L169 SmtUtils]: Spent 4.58 s on a formula simplification that was a NOOP. DAG size: 147 [2018-07-25 09:41:50,177 WARN L169 SmtUtils]: Spent 27.61 s on a formula simplification that was a NOOP. DAG size: 229 [2018-07-25 09:42:02,227 ERROR L403 Pdr]: Internal query 435#(and (not (and (exists ((v_main_y_18 Int)) (and (or (and (< main_y 256) (= (+ main_y 1) v_main_y_18)) (and (= main_y (+ v_main_y_18 255)) (<= 256 main_y))) (exists ((v_main_y_17 Int)) (and (exists ((v_main_y_16 Int)) (and (exists ((v_main_y_15 Int)) (and (or (and (< v_main_y_16 256) (= (+ v_main_y_16 1) v_main_y_15)) (and (<= 256 v_main_y_16) (= (+ v_main_y_15 255) v_main_y_16))) (exists ((v_main_y_14 Int)) (and (or (and (< v_main_y_15 256) (= (+ v_main_y_15 1) v_main_y_14)) (and (<= 256 v_main_y_15) (= v_main_y_15 (+ v_main_y_14 255)))) (not (= 100 v_main_y_14)))))) (or (and (= (+ v_main_y_17 1) v_main_y_16) (< v_main_y_17 256)) (and (= (+ v_main_y_16 255) v_main_y_17) (<= 256 v_main_y_17))))) (or (and (< v_main_y_18 256) (= (+ v_main_y_18 1) v_main_y_17)) (and (<= 256 v_main_y_18) (= (+ v_main_y_17 255) v_main_y_18))))))) (exists ((v_main_x_22 Int)) (and (or (and (= (+ main_x 1) v_main_x_22) (< main_x 256)) (and (<= 256 main_x) (= main_x (+ v_main_x_22 255)))) (exists ((v_main_x_21 Int)) (and (or (and (< v_main_x_22 256) (= v_main_x_21 (+ v_main_x_22 1))) (and (= (+ v_main_x_21 255) v_main_x_22) (<= 256 v_main_x_22))) (exists ((v_main_x_20 Int)) (and (exists ((v_main_x_19 Int)) (and (or (= 99 v_main_x_19) (= 355 v_main_x_19)) (or (and (<= 256 v_main_x_20) (= (+ v_main_x_19 255) v_main_x_20)) (and (< v_main_x_20 256) (= v_main_x_19 (+ v_main_x_20 1)))))) (or (and (= (+ v_main_x_20 255) v_main_x_21) (<= 256 v_main_x_21)) (and (< v_main_x_21 256) (= v_main_x_20 (+ v_main_x_21 1)))))))))))) (not (and (exists ((v_main_x_20 Int)) (and (exists ((v_main_x_19 Int)) (and (or (= 99 v_main_x_19) (= 355 v_main_x_19)) (or (and (<= 256 v_main_x_20) (= (+ v_main_x_19 255) v_main_x_20)) (and (< v_main_x_20 256) (= v_main_x_19 (+ v_main_x_20 1)))))) (or (and (<= 256 main_x) (= main_x (+ v_main_x_20 255))) (and (< main_x 256) (= (+ main_x 1) v_main_x_20))))) (exists ((v_main_y_16 Int)) (and (or (and (= main_y (+ v_main_y_16 255)) (<= 256 main_y)) (and (< main_y 256) (= (+ main_y 1) v_main_y_16))) (exists ((v_main_y_15 Int)) (and (or (and (< v_main_y_16 256) (= (+ v_main_y_16 1) v_main_y_15)) (and (<= 256 v_main_y_16) (= (+ v_main_y_15 255) v_main_y_16))) (exists ((v_main_y_14 Int)) (and (or (and (< v_main_y_15 256) (= (+ v_main_y_15 1) v_main_y_14)) (and (<= 256 v_main_y_15) (= v_main_y_15 (+ v_main_y_14 255)))) (not (= 100 v_main_y_14)))))))))) (not (and (exists ((v_main_y_14 Int)) (and (not (= 100 v_main_y_14)) (or (and (= main_y (+ v_main_y_14 255)) (<= 256 main_y)) (and (< main_y 256) (= (+ main_y 1) v_main_y_14))))) (or (= main_x 99) (= main_x 355)))) (not (and (= main_x 100) (not (= main_y 100)))) (not (and (exists ((v_main_x_19 Int)) (and (or (and (= main_x (+ v_main_x_19 255)) (<= 256 main_x)) (and (= (+ main_x 1) v_main_x_19) (< main_x 256))) (or (= 99 v_main_x_19) (= 355 v_main_x_19)))) (exists ((v_main_y_15 Int)) (and (or (and (= main_y (+ v_main_y_15 255)) (<= 256 main_y)) (and (= (+ main_y 1) v_main_y_15) (< main_y 256))) (exists ((v_main_y_14 Int)) (and (or (and (< v_main_y_15 256) (= (+ v_main_y_15 1) v_main_y_14)) (and (<= 256 v_main_y_15) (= v_main_y_15 (+ v_main_y_14 255)))) (not (= 100 v_main_y_14)))))))) (not (and (exists ((v_main_x_23 Int)) (and (or (and (<= 256 main_x) (= main_x (+ v_main_x_23 255))) (and (= (+ main_x 1) v_main_x_23) (< main_x 256))) (exists ((v_main_x_22 Int)) (and (exists ((v_main_x_21 Int)) (and (or (and (< v_main_x_22 256) (= v_main_x_21 (+ v_main_x_22 1))) (and (= (+ v_main_x_21 255) v_main_x_22) (<= 256 v_main_x_22))) (exists ((v_main_x_20 Int)) (and (exists ((v_main_x_19 Int)) (and (or (= 99 v_main_x_19) (= 355 v_main_x_19)) (or (and (<= 256 v_main_x_20) (= (+ v_main_x_19 255) v_main_x_20)) (and (< v_main_x_20 256) (= v_main_x_19 (+ v_main_x_20 1)))))) (or (and (= (+ v_main_x_20 255) v_main_x_21) (<= 256 v_main_x_21)) (and (< v_main_x_21 256) (= v_main_x_20 (+ v_main_x_21 1)))))))) (or (and (<= 256 v_main_x_23) (= v_main_x_23 (+ v_main_x_22 255))) (and (= (+ v_main_x_23 1) v_main_x_22) (< v_main_x_23 256))))))) (exists ((v_main_y_19 Int)) (and (or (and (= (+ main_y 1) v_main_y_19) (< main_y 256)) (and (= main_y (+ v_main_y_19 255)) (<= 256 main_y))) (exists ((v_main_y_18 Int)) (and (exists ((v_main_y_17 Int)) (and (exists ((v_main_y_16 Int)) (and (exists ((v_main_y_15 Int)) (and (or (and (< v_main_y_16 256) (= (+ v_main_y_16 1) v_main_y_15)) (and (<= 256 v_main_y_16) (= (+ v_main_y_15 255) v_main_y_16))) (exists ((v_main_y_14 Int)) (and (or (and (< v_main_y_15 256) (= (+ v_main_y_15 1) v_main_y_14)) (and (<= 256 v_main_y_15) (= v_main_y_15 (+ v_main_y_14 255)))) (not (= 100 v_main_y_14)))))) (or (and (= (+ v_main_y_17 1) v_main_y_16) (< v_main_y_17 256)) (and (= (+ v_main_y_16 255) v_main_y_17) (<= 256 v_main_y_17))))) (or (and (< v_main_y_18 256) (= (+ v_main_y_18 1) v_main_y_17)) (and (<= 256 v_main_y_18) (= (+ v_main_y_17 255) v_main_y_18))))) (or (and (= v_main_y_19 (+ v_main_y_18 255)) (<= 256 v_main_y_19)) (and (= (+ v_main_y_19 1) v_main_y_18) (< v_main_y_19 256))))))))) (not (and (exists ((v_main_x_21 Int)) (and (or (and (= (+ main_x 1) v_main_x_21) (< main_x 256)) (and (= main_x (+ v_main_x_21 255)) (<= 256 main_x))) (exists ((v_main_x_20 Int)) (and (exists ((v_main_x_19 Int)) (and (or (= 99 v_main_x_19) (= 355 v_main_x_19)) (or (and (<= 256 v_main_x_20) (= (+ v_main_x_19 255) v_main_x_20)) (and (< v_main_x_20 256) (= v_main_x_19 (+ v_main_x_20 1)))))) (or (and (= (+ v_main_x_20 255) v_main_x_21) (<= 256 v_main_x_21)) (and (< v_main_x_21 256) (= v_main_x_20 (+ v_main_x_21 1)))))))) (exists ((v_main_y_17 Int)) (and (exists ((v_main_y_16 Int)) (and (exists ((v_main_y_15 Int)) (and (or (and (< v_main_y_16 256) (= (+ v_main_y_16 1) v_main_y_15)) (and (<= 256 v_main_y_16) (= (+ v_main_y_15 255) v_main_y_16))) (exists ((v_main_y_14 Int)) (and (or (and (< v_main_y_15 256) (= (+ v_main_y_15 1) v_main_y_14)) (and (<= 256 v_main_y_15) (= v_main_y_15 (+ v_main_y_14 255)))) (not (= 100 v_main_y_14)))))) (or (and (= (+ v_main_y_17 1) v_main_y_16) (< v_main_y_17 256)) (and (= (+ v_main_y_16 255) v_main_y_17) (<= 256 v_main_y_17))))) (or (and (= (+ main_y 1) v_main_y_17) (< main_y 256)) (and (= main_y (+ v_main_y_17 255)) (<= 256 main_y)))))))) && assume true;BeginParallelComposition{ParallelCodeBlock0: assume x >= 256;x := x - 255;ParallelCodeBlock1: assume !(x >= 256);x := x + 1;}EndParallelCompositionBeginParallelComposition{ParallelCodeBlock0: assume y >= 256;y := y - 255;ParallelCodeBlock1: assume !(y >= 256);y := y + 1;}EndParallelComposition && 307#(and (exists ((v_main_y_18 Int)) (and (or (and (< main_y 256) (= (+ main_y 1) v_main_y_18)) (and (= main_y (+ v_main_y_18 255)) (<= 256 main_y))) (exists ((v_main_y_17 Int)) (and (exists ((v_main_y_16 Int)) (and (exists ((v_main_y_15 Int)) (and (or (and (< v_main_y_16 256) (= (+ v_main_y_16 1) v_main_y_15)) (and (<= 256 v_main_y_16) (= (+ v_main_y_15 255) v_main_y_16))) (exists ((v_main_y_14 Int)) (and (or (and (< v_main_y_15 256) (= (+ v_main_y_15 1) v_main_y_14)) (and (<= 256 v_main_y_15) (= v_main_y_15 (+ v_main_y_14 255)))) (not (= 100 v_main_y_14)))))) (or (and (= (+ v_main_y_17 1) v_main_y_16) (< v_main_y_17 256)) (and (= (+ v_main_y_16 255) v_main_y_17) (<= 256 v_main_y_17))))) (or (and (< v_main_y_18 256) (= (+ v_main_y_18 1) v_main_y_17)) (and (<= 256 v_main_y_18) (= (+ v_main_y_17 255) v_main_y_18))))))) (exists ((v_main_x_22 Int)) (and (or (and (= (+ main_x 1) v_main_x_22) (< main_x 256)) (and (<= 256 main_x) (= main_x (+ v_main_x_22 255)))) (exists ((v_main_x_21 Int)) (and (or (and (< v_main_x_22 256) (= v_main_x_21 (+ v_main_x_22 1))) (and (= (+ v_main_x_21 255) v_main_x_22) (<= 256 v_main_x_22))) (exists ((v_main_x_20 Int)) (and (exists ((v_main_x_19 Int)) (and (or (= 99 v_main_x_19) (= 355 v_main_x_19)) (or (and (<= 256 v_main_x_20) (= (+ v_main_x_19 255) v_main_x_20)) (and (< v_main_x_20 256) (= v_main_x_19 (+ v_main_x_20 1)))))) (or (and (= (+ v_main_x_20 255) v_main_x_21) (<= 256 v_main_x_21)) (and (< v_main_x_21 256) (= v_main_x_20 (+ v_main_x_21 1))))))))))) was unknown! [2018-07-25 09:42:02,228 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$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-07-25 09:42:02,232 INFO L168 Benchmark]: Toolchain (without parser) took 86105.60 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 274.9 MB). Peak memory consumption was 274.9 MB. Max. memory is 7.1 GB. [2018-07-25 09:42:02,233 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 09:42:02,234 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.41 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 09:42:02,234 INFO L168 Benchmark]: Boogie Preprocessor took 23.76 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 09:42:02,235 INFO L168 Benchmark]: RCFGBuilder took 436.69 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-25 09:42:02,236 INFO L168 Benchmark]: TraceAbstraction took 85598.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-07-25 09:42:02,240 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.19 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 41.41 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 23.76 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. * RCFGBuilder took 436.69 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 85598.77 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 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/HiddenEqualityWithBranches.bpl_AutomizerBpl-pdr.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_09-42-02-254.csv Received shutdown request...