java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/programs/regression/bpl/AutomizerBpl-nestedInterpolants.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-935f392 [2018-07-23 13:49:37,356 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 13:49:37,358 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 13:49:37,378 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 13:49:37,379 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 13:49:37,380 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 13:49:37,382 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 13:49:37,384 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 13:49:37,387 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 13:49:37,394 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 13:49:37,395 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 13:49:37,396 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 13:49:37,398 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 13:49:37,400 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 13:49:37,401 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 13:49:37,402 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 13:49:37,403 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 13:49:37,407 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 13:49:37,410 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 13:49:37,413 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 13:49:37,414 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 13:49:37,415 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 13:49:37,418 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 13:49:37,420 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 13:49:37,420 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 13:49:37,421 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 13:49:37,422 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 13:49:37,423 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 13:49:37,424 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 13:49:37,425 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 13:49:37,425 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 13:49:37,426 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 13:49:37,426 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 13:49:37,426 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 13:49:37,427 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 13:49:37,428 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 13:49:37,428 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/AutomizerBpl-nestedInterpolants.epf [2018-07-23 13:49:37,441 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 13:49:37,442 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 13:49:37,443 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 13:49:37,443 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-23 13:49:37,443 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 13:49:37,443 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-23 13:49:37,444 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 13:49:37,444 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 13:49:37,487 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 13:49:37,500 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 13:49:37,506 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 13:49:37,508 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 13:49:37,508 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 13:49:37,509 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl [2018-07-23 13:49:37,509 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl' [2018-07-23 13:49:37,591 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 13:49:37,593 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 13:49:37,593 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 13:49:37,593 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 13:49:37,594 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 13:49:37,620 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:37" (1/1) ... [2018-07-23 13:49:37,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:37" (1/1) ... [2018-07-23 13:49:37,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:37" (1/1) ... [2018-07-23 13:49:37,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:37" (1/1) ... [2018-07-23 13:49:37,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:37" (1/1) ... [2018-07-23 13:49:37,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:37" (1/1) ... [2018-07-23 13:49:37,662 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:37" (1/1) ... [2018-07-23 13:49:37,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 13:49:37,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 13:49:37,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 13:49:37,669 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 13:49:37,670 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:37" (1/1) ... [2018-07-23 13:49:37,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 13:49:37,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 13:49:38,650 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 13:49:38,651 INFO L202 PluginConnector]: Adding new model pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:49:38 BoogieIcfgContainer [2018-07-23 13:49:38,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 13:49:38,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 13:49:38,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 13:49:38,656 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 13:49:38,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:37" (1/2) ... [2018-07-23 13:49:38,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a99403f and model type pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:49:38, skipping insertion in model container [2018-07-23 13:49:38,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:49:38" (2/2) ... [2018-07-23 13:49:38,660 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl [2018-07-23 13:49:38,671 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-23 13:49:38,680 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 13:49:38,728 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 13:49:38,729 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 13:49:38,729 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 13:49:38,729 INFO L375 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-23 13:49:38,729 INFO L376 AbstractCegarLoop]: Backedges is CANONICAL [2018-07-23 13:49:38,730 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 13:49:38,730 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 13:49:38,730 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 13:49:38,730 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 13:49:38,745 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 13:49:38,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 13:49:38,754 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:49:38,755 INFO L357 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 13:49:38,755 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:49:38,761 INFO L82 PathProgramCache]: Analyzing trace with hash 1009052, now seen corresponding path program 1 times [2018-07-23 13:49:38,768 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:49:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:49:38,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:49:38,919 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 13:49:38,919 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 13:49:38,922 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:49:38,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:49:38,923 INFO L185 omatonBuilderFactory]: Interpolants [9#true, 10#false, 11#(and (= ~mode1 (* 256 (div ~mode1 256))) (<= ~r1 (* 256 (div ~r1 256)))), 12#(= ULTIMATE.start_assert_~arg 1)] [2018-07-23 13:49:38,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:49:38,924 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 13:49:38,940 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 13:49:38,941 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:49:38,944 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-23 13:49:39,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:49:39,045 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-07-23 13:49:39,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 13:49:39,048 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-23 13:49:39,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:49:39,066 INFO L225 Difference]: With dead ends: 11 [2018-07-23 13:49:39,067 INFO L226 Difference]: Without dead ends: 8 [2018-07-23 13:49:39,073 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:49:39,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-23 13:49:39,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-07-23 13:49:39,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 13:49:39,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 13:49:39,123 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 13:49:39,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:49:39,124 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 13:49:39,124 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 13:49:39,124 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 13:49:39,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 13:49:39,126 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:49:39,126 INFO L357 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-23 13:49:39,127 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:49:39,127 INFO L82 PathProgramCache]: Analyzing trace with hash 969782581, now seen corresponding path program 1 times [2018-07-23 13:49:39,127 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:49:39,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:49:39,254 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:49:39,254 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:49:39,254 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-23 13:49:39,255 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:49:39,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:49:39,256 INFO L185 omatonBuilderFactory]: Interpolants [49#true, 50#false, 51#(and (= ~mode5 (* 256 (div ~mode5 256))) (<= 0 ~send5) (= ~mode1 (* 256 (div ~mode1 256))) (= 0 (+ ~nomsg 1)) (<= ~send5 127)), 52#(and (= ~mode1 1) (not (= ~p5_old ~nomsg)))] [2018-07-23 13:49:39,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-23 13:49:39,258 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 13:49:39,259 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 13:49:39,259 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:49:39,259 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-07-23 13:49:39,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:49:39,283 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-07-23 13:49:39,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 13:49:39,284 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-07-23 13:49:39,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:49:39,285 INFO L225 Difference]: With dead ends: 8 [2018-07-23 13:49:39,285 INFO L226 Difference]: Without dead ends: 0 [2018-07-23 13:49:39,286 INFO L575 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:49:39,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-23 13:49:39,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-23 13:49:39,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-23 13:49:39,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-23 13:49:39,291 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2018-07-23 13:49:39,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:49:39,292 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-23 13:49:39,292 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 13:49:39,293 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-23 13:49:39,294 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-23 13:49:39,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-23 13:49:39,340 INFO L421 ceAbstractionStarter]: For program point L421(lines 416 422) no Hoare annotation was computed. [2018-07-23 13:49:39,340 INFO L421 ceAbstractionStarter]: For program point L341(lines 333 342) no Hoare annotation was computed. [2018-07-23 13:49:39,340 INFO L421 ceAbstractionStarter]: For program point L385(lines 377 386) no Hoare annotation was computed. [2018-07-23 13:49:39,341 INFO L421 ceAbstractionStarter]: For program point L302(lines 302 313) no Hoare annotation was computed. [2018-07-23 13:49:39,341 INFO L421 ceAbstractionStarter]: For program point L346(lines 346 356) no Hoare annotation was computed. [2018-07-23 13:49:39,341 INFO L421 ceAbstractionStarter]: For program point L410(lines 406 417) no Hoare annotation was computed. [2018-07-23 13:49:39,341 INFO L421 ceAbstractionStarter]: For program point L297(lines 289 298) no Hoare annotation was computed. [2018-07-23 13:49:39,341 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 81 443) no Hoare annotation was computed. [2018-07-23 13:49:39,342 INFO L421 ceAbstractionStarter]: For program point L363(lines 355 364) no Hoare annotation was computed. [2018-07-23 13:49:39,343 INFO L417 ceAbstractionStarter]: At program point L440(lines 272 440) the Hoare annotation is: (or (and (= ~mode1 1) (not (= ~p5_old ~nomsg))) (and (= ~mode5 (* 256 (div ~mode5 256))) (<= 0 ~send5) (= ~mode1 (* 256 (div ~mode1 256))) (= 0 (+ ~nomsg 1)) (<= ~r1 (* 256 (div ~r1 256))) (<= ~send5 127))) [2018-07-23 13:49:39,343 INFO L421 ceAbstractionStarter]: For program point L324(lines 324 334) no Hoare annotation was computed. [2018-07-23 13:49:39,343 INFO L421 ceAbstractionStarter]: For program point L368(lines 368 378) no Hoare annotation was computed. [2018-07-23 13:49:39,344 INFO L421 ceAbstractionStarter]: For program point L401(lines 401 407) no Hoare annotation was computed. [2018-07-23 13:49:39,345 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 81 443) the Hoare annotation is: true [2018-07-23 13:49:39,345 INFO L417 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 81 443) the Hoare annotation is: false [2018-07-23 13:49:39,345 INFO L417 ceAbstractionStarter]: At program point L431(lines 431 438) the Hoare annotation is: (and (= ~mode1 1) (= ULTIMATE.start_assert_~arg 1) (not (= ~p5_old ~nomsg))) [2018-07-23 13:49:39,346 INFO L421 ceAbstractionStarter]: For program point L279(lines 279 290) no Hoare annotation was computed. [2018-07-23 13:49:39,346 INFO L421 ceAbstractionStarter]: For program point L319(lines 312 320) no Hoare annotation was computed. [2018-07-23 13:49:39,346 INFO L417 ceAbstractionStarter]: At program point ULTIMATE.startErr0AssertViolationASSERT(line 442) the Hoare annotation is: false [2018-07-23 13:49:39,349 INFO L417 ceAbstractionStarter]: At program point L437(lines 437 441) the Hoare annotation is: false [2018-07-23 13:49:39,362 INFO L202 PluginConnector]: Adding new model pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 01:49:39 BoogieIcfgContainer [2018-07-23 13:49:39,363 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 13:49:39,364 INFO L168 Benchmark]: Toolchain (without parser) took 1772.27 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 95.1 MB). Peak memory consumption was 95.1 MB. Max. memory is 7.1 GB. [2018-07-23 13:49:39,366 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 13:49:39,367 INFO L168 Benchmark]: Boogie Preprocessor took 74.40 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 13:49:39,368 INFO L168 Benchmark]: RCFGBuilder took 982.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-07-23 13:49:39,370 INFO L168 Benchmark]: TraceAbstraction took 710.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-23 13:49:39,377 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 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 74.40 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 982.84 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 710.74 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 442]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 431]: Loop Invariant Derived loop invariant: (~mode1 == 1 && assert_~arg == 1) && !(~p5_old == ~nomsg) - InvariantResult [Line: 437]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 272]: Loop Invariant Derived loop invariant: (~mode1 == 1 && !(~p5_old == ~nomsg)) || (((((~mode5 == 256 * (~mode5 / 256) && 0 <= ~send5) && ~mode1 == 256 * (~mode1 / 256)) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) && ~send5 <= 127) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 1 SDslu, 5 SDs, 0 SdLazy, 11 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 1/2 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 9 NumberOfFragments, 57 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 277 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_13-49-39-395.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_13-49-39-395.csv Received shutdown request...