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.3.1.ufo.UNBOUNDED.pals.c_14.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-935f392 [2018-07-23 13:49:26,894 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 13:49:26,897 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 13:49:26,912 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 13:49:26,913 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 13:49:26,914 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 13:49:26,915 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 13:49:26,917 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 13:49:26,918 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 13:49:26,919 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 13:49:26,920 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 13:49:26,920 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 13:49:26,921 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 13:49:26,922 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 13:49:26,923 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 13:49:26,924 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 13:49:26,925 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 13:49:26,927 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 13:49:26,929 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 13:49:26,930 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 13:49:26,931 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 13:49:26,932 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 13:49:26,935 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 13:49:26,935 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 13:49:26,935 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 13:49:26,936 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 13:49:26,937 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 13:49:26,938 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 13:49:26,939 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 13:49:26,940 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 13:49:26,940 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 13:49:26,941 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 13:49:26,941 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 13:49:26,941 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 13:49:26,942 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 13:49:26,943 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 13:49:26,943 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 13:49:26,967 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 13:49:26,967 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 13:49:26,969 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 13:49:26,969 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-23 13:49:26,969 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 13:49:26,969 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-23 13:49:26,970 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 13:49:26,970 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 13:49:27,016 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 13:49:27,034 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 13:49:27,040 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 13:49:27,041 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 13:49:27,042 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 13:49:27,043 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.3.1.ufo.UNBOUNDED.pals.c_14.bpl [2018-07-23 13:49:27,043 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.3.1.ufo.UNBOUNDED.pals.c_14.bpl' [2018-07-23 13:49:27,131 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 13:49:27,132 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 13:49:27,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 13:49:27,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 13:49:27,133 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 13:49:27,159 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr.3.1.ufo.UNBOUNDED.pals.c_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:27" (1/1) ... [2018-07-23 13:49:27,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr.3.1.ufo.UNBOUNDED.pals.c_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:27" (1/1) ... [2018-07-23 13:49:27,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr.3.1.ufo.UNBOUNDED.pals.c_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:27" (1/1) ... [2018-07-23 13:49:27,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr.3.1.ufo.UNBOUNDED.pals.c_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:27" (1/1) ... [2018-07-23 13:49:27,182 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr.3.1.ufo.UNBOUNDED.pals.c_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:27" (1/1) ... [2018-07-23 13:49:27,184 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr.3.1.ufo.UNBOUNDED.pals.c_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:27" (1/1) ... [2018-07-23 13:49:27,186 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr.3.1.ufo.UNBOUNDED.pals.c_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:27" (1/1) ... [2018-07-23 13:49:27,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 13:49:27,194 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 13:49:27,194 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 13:49:27,194 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 13:49:27,195 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr.3.1.ufo.UNBOUNDED.pals.c_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:27" (1/1) ... [2018-07-23 13:49:27,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 13:49:27,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 13:49:27,997 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 13:49:27,997 INFO L202 PluginConnector]: Adding new model pals_lcr.3.1.ufo.UNBOUNDED.pals.c_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:49:27 BoogieIcfgContainer [2018-07-23 13:49:27,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 13:49:27,999 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 13:49:27,999 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 13:49:28,006 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 13:49:28,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.3.1.ufo.UNBOUNDED.pals.c_14.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:27" (1/2) ... [2018-07-23 13:49:28,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@663802ff and model type pals_lcr.3.1.ufo.UNBOUNDED.pals.c_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:49:28, skipping insertion in model container [2018-07-23 13:49:28,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.3.1.ufo.UNBOUNDED.pals.c_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:49:27" (2/2) ... [2018-07-23 13:49:28,015 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.UNBOUNDED.pals.c_14.bpl [2018-07-23 13:49:28,025 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-23 13:49:28,035 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 13:49:28,083 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 13:49:28,084 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 13:49:28,084 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 13:49:28,084 INFO L375 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-23 13:49:28,084 INFO L376 AbstractCegarLoop]: Backedges is CANONICAL [2018-07-23 13:49:28,084 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 13:49:28,084 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 13:49:28,085 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 13:49:28,085 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 13:49:28,098 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 13:49:28,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 13:49:28,109 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:49:28,110 INFO L357 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 13:49:28,110 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:49:28,115 INFO L82 PathProgramCache]: Analyzing trace with hash 987460, now seen corresponding path program 1 times [2018-07-23 13:49:28,123 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:49:28,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:49:28,353 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 13:49:28,355 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 13:49:28,356 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 13:49:28,358 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:49:28,359 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 13:49:28,359 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 13:49:28,360 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 13:49:28,361 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 13:49:28,376 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 13:49:28,377 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:49:28,380 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-23 13:49:28,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:49:28,445 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-07-23 13:49:28,446 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 13:49:28,447 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-23 13:49:28,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:49:28,459 INFO L225 Difference]: With dead ends: 11 [2018-07-23 13:49:28,459 INFO L226 Difference]: Without dead ends: 8 [2018-07-23 13:49:28,463 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 13:49:28,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-23 13:49:28,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-07-23 13:49:28,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 13:49:28,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 13:49:28,513 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 13:49:28,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:49:28,513 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 13:49:28,514 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 13:49:28,514 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 13:49:28,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 13:49:28,515 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:49:28,515 INFO L357 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-23 13:49:28,515 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:49:28,516 INFO L82 PathProgramCache]: Analyzing trace with hash 948907289, now seen corresponding path program 1 times [2018-07-23 13:49:28,516 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:49:28,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:49:28,634 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 13:49:28,635 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:49:28,635 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-23 13:49:28,635 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:49:28,636 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 13:49:28,636 INFO L185 omatonBuilderFactory]: Interpolants [49#true, 50#false, 51#(and (= ~mode3 (* 256 (div ~mode3 256))) (<= ~send2 127) (= ~mode2 (* 256 (div ~mode2 256))) (<= 0 ~send2) (= 0 (+ ~nomsg 1))), 52#(and (not (= ~p2_old ~nomsg)) (<= ~mode3 1) (<= 1 ~mode3))] [2018-07-23 13:49:28,638 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 13:49:28,642 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 13:49:28,643 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 13:49:28,643 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:49:28,644 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-07-23 13:49:28,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:49:28,688 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-07-23 13:49:28,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 13:49:28,690 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-07-23 13:49:28,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:49:28,691 INFO L225 Difference]: With dead ends: 8 [2018-07-23 13:49:28,691 INFO L226 Difference]: Without dead ends: 0 [2018-07-23 13:49:28,692 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 13:49:28,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-23 13:49:28,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-23 13:49:28,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-23 13:49:28,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-23 13:49:28,695 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2018-07-23 13:49:28,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:49:28,695 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-23 13:49:28,695 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 13:49:28,695 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-23 13:49:28,696 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-23 13:49:28,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-23 13:49:28,750 INFO L421 ceAbstractionStarter]: For program point L184(lines 184 195) no Hoare annotation was computed. [2018-07-23 13:49:28,751 INFO L417 ceAbstractionStarter]: At program point L289(lines 289 295) the Hoare annotation is: (and (= ULTIMATE.start_assert_~arg 1) (not (= ~p2_old ~nomsg)) (<= ~mode3 1) (<= 1 ~mode3)) [2018-07-23 13:49:28,751 INFO L421 ceAbstractionStarter]: For program point L203(lines 194 204) no Hoare annotation was computed. [2018-07-23 13:49:28,751 INFO L421 ceAbstractionStarter]: For program point L225(lines 217 226) no Hoare annotation was computed. [2018-07-23 13:49:28,751 INFO L421 ceAbstractionStarter]: For program point L247(lines 239 248) no Hoare annotation was computed. [2018-07-23 13:49:28,751 INFO L421 ceAbstractionStarter]: For program point L268(lines 264 275) no Hoare annotation was computed. [2018-07-23 13:49:28,751 INFO L421 ceAbstractionStarter]: For program point L208(lines 208 218) no Hoare annotation was computed. [2018-07-23 13:49:28,752 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 51 301) the Hoare annotation is: true [2018-07-23 13:49:28,752 INFO L417 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 51 301) the Hoare annotation is: false [2018-07-23 13:49:28,752 INFO L421 ceAbstractionStarter]: For program point L230(lines 230 240) no Hoare annotation was computed. [2018-07-23 13:49:28,755 INFO L417 ceAbstractionStarter]: At program point L294(lines 177 294) the Hoare annotation is: (or (and (not (= ~p2_old ~nomsg)) (<= ~mode3 1) (<= 1 ~mode3)) (and (= ~mode3 (* 256 (div ~mode3 256))) (= ~mode1 (* 256 (div ~mode1 256))) (<= ~send2 127) (= ~mode2 (* 256 (div ~mode2 256))) (<= 0 ~send2) (= 0 (+ ~nomsg 1)) (<= ~r1 (* 256 (div ~r1 256))))) [2018-07-23 13:49:28,755 INFO L417 ceAbstractionStarter]: At program point L298(lines 298 299) the Hoare annotation is: false [2018-07-23 13:49:28,755 INFO L421 ceAbstractionStarter]: For program point L259(lines 259 265) no Hoare annotation was computed. [2018-07-23 13:49:28,755 INFO L421 ceAbstractionStarter]: For program point L279(lines 274 280) no Hoare annotation was computed. [2018-07-23 13:49:28,756 INFO L417 ceAbstractionStarter]: At program point ULTIMATE.startErr0AssertViolationASSERT(line 300) the Hoare annotation is: false [2018-07-23 13:49:28,756 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 51 301) no Hoare annotation was computed. [2018-07-23 13:49:28,768 INFO L202 PluginConnector]: Adding new model pals_lcr.3.1.ufo.UNBOUNDED.pals.c_14.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 01:49:28 BoogieIcfgContainer [2018-07-23 13:49:28,768 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 13:49:28,770 INFO L168 Benchmark]: Toolchain (without parser) took 1637.72 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-07-23 13:49:28,772 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 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 13:49:28,773 INFO L168 Benchmark]: Boogie Preprocessor took 60.14 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 13:49:28,774 INFO L168 Benchmark]: RCFGBuilder took 804.02 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-23 13:49:28,776 INFO L168 Benchmark]: TraceAbstraction took 769.93 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-23 13:49:28,781 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 0.23 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 60.14 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 804.02 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 769.93 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: 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: 300]: 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: 298]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 177]: Loop Invariant Derived loop invariant: ((!(~p2_old == ~nomsg) && ~mode3 <= 1) && 1 <= ~mode3) || ((((((~mode3 == 256 * (~mode3 / 256) && ~mode1 == 256 * (~mode1 / 256)) && ~send2 <= 127) && ~mode2 == 256 * (~mode2 / 256)) && 0 <= ~send2) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) - InvariantResult [Line: 289]: Loop Invariant Derived loop invariant: ((assert_~arg == 1 && !(~p2_old == ~nomsg)) && ~mode3 <= 1) && 1 <= ~mode3 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 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, 0.1s 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, 70 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, 307 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.3.1.ufo.UNBOUNDED.pals.c_14.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_13-49-28-799.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr.3.1.ufo.UNBOUNDED.pals.c_14.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_13-49-28-799.csv Received shutdown request...