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.6.ufo.UNBOUNDED.pals.c_23.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-935f392 [2018-07-23 13:49:39,913 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 13:49:39,915 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 13:49:39,927 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 13:49:39,928 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 13:49:39,929 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 13:49:39,930 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 13:49:39,932 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 13:49:39,934 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 13:49:39,935 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 13:49:39,936 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 13:49:39,936 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 13:49:39,937 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 13:49:39,938 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 13:49:39,939 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 13:49:39,940 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 13:49:39,941 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 13:49:39,943 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 13:49:39,945 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 13:49:39,947 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 13:49:39,948 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 13:49:39,949 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 13:49:39,952 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 13:49:39,952 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 13:49:39,952 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 13:49:39,953 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 13:49:39,954 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 13:49:39,955 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 13:49:39,956 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 13:49:39,957 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 13:49:39,958 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 13:49:39,958 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-23 13:49:39,961 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 13:49:39,976 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 13:49:39,976 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 13:49:39,977 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 13:49:39,978 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-23 13:49:39,978 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 13:49:39,978 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-23 13:49:39,978 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 13:49:39,978 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 13:49:40,038 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 13:49:40,055 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 13:49:40,059 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 13:49:40,063 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 13:49:40,064 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 13:49:40,064 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl [2018-07-23 13:49:40,065 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl' [2018-07-23 13:49:40,163 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 13:49:40,165 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 13:49:40,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 13:49:40,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 13:49:40,167 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 13:49:40,194 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:40" (1/1) ... [2018-07-23 13:49:40,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:40" (1/1) ... [2018-07-23 13:49:40,215 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:40" (1/1) ... [2018-07-23 13:49:40,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:40" (1/1) ... [2018-07-23 13:49:40,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:40" (1/1) ... [2018-07-23 13:49:40,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:40" (1/1) ... [2018-07-23 13:49:40,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:40" (1/1) ... [2018-07-23 13:49:40,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 13:49:40,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 13:49:40,266 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 13:49:40,266 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 13:49:40,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:40" (1/1) ... [2018-07-23 13:49:40,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 13:49:40,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 13:49:41,375 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 13:49:41,375 INFO L202 PluginConnector]: Adding new model pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:49:41 BoogieIcfgContainer [2018-07-23 13:49:41,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 13:49:41,378 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 13:49:41,378 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 13:49:41,382 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 13:49:41,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:40" (1/2) ... [2018-07-23 13:49:41,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a302314 and model type pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:49:41, skipping insertion in model container [2018-07-23 13:49:41,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:49:41" (2/2) ... [2018-07-23 13:49:41,387 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl [2018-07-23 13:49:41,397 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-23 13:49:41,410 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 13:49:41,452 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 13:49:41,453 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 13:49:41,453 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 13:49:41,453 INFO L375 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-23 13:49:41,453 INFO L376 AbstractCegarLoop]: Backedges is CANONICAL [2018-07-23 13:49:41,454 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 13:49:41,454 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 13:49:41,454 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 13:49:41,454 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 13:49:41,467 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 13:49:41,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 13:49:41,474 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:49:41,475 INFO L357 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 13:49:41,476 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:49:41,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1019879, now seen corresponding path program 1 times [2018-07-23 13:49:41,487 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:49:41,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:49:41,694 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 13:49:41,698 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 13:49:41,699 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 13:49:41,701 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:49:41,702 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 13:49:41,702 INFO L185 omatonBuilderFactory]: Interpolants [9#true, 10#false, 11#(and (= ~mode1 (* 256 (div ~mode1 256))) (<= ~r1 (* 256 (div ~r1 256)))), 12#(and (<= ULTIMATE.start_assert_~arg 1) (<= 1 ULTIMATE.start_assert_~arg))] [2018-07-23 13:49:41,702 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 13:49:41,704 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 13:49:41,719 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 13:49:41,720 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:49:41,725 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-23 13:49:41,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:49:41,816 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-07-23 13:49:41,816 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 13:49:41,818 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-23 13:49:41,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:49:41,832 INFO L225 Difference]: With dead ends: 11 [2018-07-23 13:49:41,832 INFO L226 Difference]: Without dead ends: 8 [2018-07-23 13:49:41,840 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 13:49:41,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-23 13:49:41,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-07-23 13:49:41,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 13:49:41,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 13:49:41,883 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 13:49:41,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:49:41,883 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 13:49:41,883 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 13:49:41,884 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 13:49:41,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 13:49:41,884 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:49:41,885 INFO L357 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-23 13:49:41,885 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:49:41,885 INFO L82 PathProgramCache]: Analyzing trace with hash 980190467, now seen corresponding path program 1 times [2018-07-23 13:49:41,886 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:49:41,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:49:42,036 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 13:49:42,037 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:49:42,037 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-23 13:49:42,038 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:49:42,038 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 13:49:42,039 INFO L185 omatonBuilderFactory]: Interpolants [49#true, 50#false, 51#(and (<= 0 ~send6) (= ~mode1 (* 256 (div ~mode1 256))) (<= ~send6 127) (= 0 (+ ~nomsg 1)) (= ~mode6 (* 256 (div ~mode6 256)))), 52#(and (not (= ~p6_old ~nomsg)) (<= 1 ~mode1) (<= ~mode1 1))] [2018-07-23 13:49:42,039 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 13:49:42,041 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 13:49:42,042 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 13:49:42,042 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:49:42,043 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-07-23 13:49:42,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:49:42,069 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-07-23 13:49:42,070 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 13:49:42,071 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-07-23 13:49:42,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:49:42,071 INFO L225 Difference]: With dead ends: 8 [2018-07-23 13:49:42,071 INFO L226 Difference]: Without dead ends: 0 [2018-07-23 13:49:42,073 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 13:49:42,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-23 13:49:42,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-23 13:49:42,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-23 13:49:42,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-23 13:49:42,074 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2018-07-23 13:49:42,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:49:42,075 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-23 13:49:42,075 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 13:49:42,075 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-23 13:49:42,076 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-23 13:49:42,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-23 13:49:42,119 INFO L421 ceAbstractionStarter]: For program point L347(lines 339 348) no Hoare annotation was computed. [2018-07-23 13:49:42,120 INFO L417 ceAbstractionStarter]: At program point L505(lines 505 512) the Hoare annotation is: (and (<= ULTIMATE.start_assert_~arg 1) (not (= ~p6_old ~nomsg)) (<= 1 ~mode1) (<= ~mode1 1) (<= 1 ULTIMATE.start_assert_~arg)) [2018-07-23 13:49:42,120 INFO L421 ceAbstractionStarter]: For program point L391(lines 383 392) no Hoare annotation was computed. [2018-07-23 13:49:42,121 INFO L421 ceAbstractionStarter]: For program point L374(lines 374 384) no Hoare annotation was computed. [2018-07-23 13:49:42,121 INFO L421 ceAbstractionStarter]: For program point L495(lines 490 496) no Hoare annotation was computed. [2018-07-23 13:49:42,121 INFO L421 ceAbstractionStarter]: For program point L413(lines 405 414) no Hoare annotation was computed. [2018-07-23 13:49:42,121 INFO L421 ceAbstractionStarter]: For program point L457(lines 449 458) no Hoare annotation was computed. [2018-07-23 13:49:42,122 INFO L421 ceAbstractionStarter]: For program point L418(lines 418 428) no Hoare annotation was computed. [2018-07-23 13:49:42,122 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 96 517) no Hoare annotation was computed. [2018-07-23 13:49:42,122 INFO L421 ceAbstractionStarter]: For program point L440(lines 440 450) no Hoare annotation was computed. [2018-07-23 13:49:42,122 INFO L421 ceAbstractionStarter]: For program point L484(lines 480 491) no Hoare annotation was computed. [2018-07-23 13:49:42,122 INFO L421 ceAbstractionStarter]: For program point L369(lines 361 370) no Hoare annotation was computed. [2018-07-23 13:49:42,123 INFO L421 ceAbstractionStarter]: For program point L328(lines 328 340) no Hoare annotation was computed. [2018-07-23 13:49:42,123 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 96 517) the Hoare annotation is: true [2018-07-23 13:49:42,123 INFO L417 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 96 517) the Hoare annotation is: false [2018-07-23 13:49:42,123 INFO L421 ceAbstractionStarter]: For program point L475(lines 475 481) no Hoare annotation was computed. [2018-07-23 13:49:42,123 INFO L421 ceAbstractionStarter]: For program point L352(lines 352 362) no Hoare annotation was computed. [2018-07-23 13:49:42,124 INFO L421 ceAbstractionStarter]: For program point L396(lines 396 406) no Hoare annotation was computed. [2018-07-23 13:49:42,124 INFO L421 ceAbstractionStarter]: For program point L435(lines 427 436) no Hoare annotation was computed. [2018-07-23 13:49:42,124 INFO L417 ceAbstractionStarter]: At program point L511(lines 511 515) the Hoare annotation is: false [2018-07-23 13:49:42,124 INFO L417 ceAbstractionStarter]: At program point ULTIMATE.startErr0AssertViolationASSERT(line 516) the Hoare annotation is: false [2018-07-23 13:49:42,125 INFO L417 ceAbstractionStarter]: At program point L514(lines 321 514) the Hoare annotation is: (or (and (<= 0 ~send6) (= ~mode1 (* 256 (div ~mode1 256))) (<= ~send6 127) (= 0 (+ ~nomsg 1)) (<= ~r1 (* 256 (div ~r1 256))) (= ~mode6 (* 256 (div ~mode6 256)))) (and (not (= ~p6_old ~nomsg)) (<= 1 ~mode1) (<= ~mode1 1))) [2018-07-23 13:49:42,138 INFO L202 PluginConnector]: Adding new model pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 01:49:42 BoogieIcfgContainer [2018-07-23 13:49:42,138 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 13:49:42,140 INFO L168 Benchmark]: Toolchain (without parser) took 1975.12 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 105.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 7.1 GB. [2018-07-23 13:49:42,142 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 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. [2018-07-23 13:49:42,144 INFO L168 Benchmark]: Boogie Preprocessor took 98.79 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. [2018-07-23 13:49:42,145 INFO L168 Benchmark]: RCFGBuilder took 1110.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. [2018-07-23 13:49:42,147 INFO L168 Benchmark]: TraceAbstraction took 760.38 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 13:49:42,152 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 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.79 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 1110.26 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 52.8 MB). Peak memory consumption was 52.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 760.38 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 516]: 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: 321]: Loop Invariant Derived loop invariant: (((((0 <= ~send6 && ~mode1 == 256 * (~mode1 / 256)) && ~send6 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) && ~mode6 == 256 * (~mode6 / 256)) || ((!(~p6_old == ~nomsg) && 1 <= ~mode1) && ~mode1 <= 1) - InvariantResult [Line: 505]: Loop Invariant Derived loop invariant: (((assert_~arg <= 1 && !(~p6_old == ~nomsg)) && 1 <= ~mode1) && ~mode1 <= 1) && 1 <= assert_~arg - InvariantResult [Line: 511]: Loop Invariant Derived loop invariant: false - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 22 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, 66 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, 319 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.6.ufo.UNBOUNDED.pals.c_23.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_13-49-42-174.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr.6.ufo.UNBOUNDED.pals.c_23.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_13-49-42-174.csv Received shutdown request...