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.6.1.ufo.UNBOUNDED.pals.c_23.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-935f392 [2018-07-23 13:49:39,030 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 13:49:39,032 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 13:49:39,045 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 13:49:39,045 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 13:49:39,046 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 13:49:39,047 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 13:49:39,049 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 13:49:39,051 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 13:49:39,051 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 13:49:39,052 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 13:49:39,053 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 13:49:39,054 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 13:49:39,054 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 13:49:39,056 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 13:49:39,056 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 13:49:39,057 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 13:49:39,059 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 13:49:39,061 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 13:49:39,062 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 13:49:39,063 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 13:49:39,065 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 13:49:39,067 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 13:49:39,067 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 13:49:39,068 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 13:49:39,069 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 13:49:39,070 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 13:49:39,070 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 13:49:39,071 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 13:49:39,072 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 13:49:39,073 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 13:49:39,073 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-23 13:49:39,074 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-23 13:49:39,074 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-23 13:49:39,075 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-23 13:49:39,076 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-23 13:49:39,076 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 13:49:39,090 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 13:49:39,090 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 13:49:39,092 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-23 13:49:39,092 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-23 13:49:39,092 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 13:49:39,092 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-23 13:49:39,093 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 13:49:39,093 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 13:49:39,136 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 13:49:39,148 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 13:49:39,152 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 13:49:39,154 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 13:49:39,154 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 13:49:39,155 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.6.1.ufo.UNBOUNDED.pals.c_23.bpl [2018-07-23 13:49:39,155 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.6.1.ufo.UNBOUNDED.pals.c_23.bpl' [2018-07-23 13:49:39,245 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 13:49:39,246 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 13:49:39,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 13:49:39,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 13:49:39,248 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 13:49:39,274 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr.6.1.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:39" (1/1) ... [2018-07-23 13:49:39,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr.6.1.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:39" (1/1) ... [2018-07-23 13:49:39,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr.6.1.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:39" (1/1) ... [2018-07-23 13:49:39,303 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr.6.1.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:39" (1/1) ... [2018-07-23 13:49:39,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr.6.1.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:39" (1/1) ... [2018-07-23 13:49:39,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr.6.1.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:39" (1/1) ... [2018-07-23 13:49:39,339 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr.6.1.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:39" (1/1) ... [2018-07-23 13:49:39,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 13:49:39,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 13:49:39,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 13:49:39,351 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 13:49:39,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr.6.1.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:39" (1/1) ... [2018-07-23 13:49:39,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 13:49:39,423 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 13:49:40,478 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 13:49:40,479 INFO L202 PluginConnector]: Adding new model pals_lcr.6.1.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:49:40 BoogieIcfgContainer [2018-07-23 13:49:40,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 13:49:40,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 13:49:40,481 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 13:49:40,486 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 13:49:40,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.6.1.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 23.07 01:49:39" (1/2) ... [2018-07-23 13:49:40,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1939d93d and model type pals_lcr.6.1.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 01:49:40, skipping insertion in model container [2018-07-23 13:49:40,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.6.1.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 01:49:40" (2/2) ... [2018-07-23 13:49:40,492 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals.c_23.bpl [2018-07-23 13:49:40,502 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-23 13:49:40,513 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 13:49:40,558 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 13:49:40,559 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 13:49:40,559 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 13:49:40,559 INFO L375 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-23 13:49:40,559 INFO L376 AbstractCegarLoop]: Backedges is CANONICAL [2018-07-23 13:49:40,559 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 13:49:40,560 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 13:49:40,560 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 13:49:40,560 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 13:49:40,572 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-23 13:49:40,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-23 13:49:40,581 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:49:40,582 INFO L357 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-23 13:49:40,582 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:49:40,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1019879, now seen corresponding path program 1 times [2018-07-23 13:49:40,594 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:49:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:49:40,781 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 13:49:40,784 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 13:49:40,785 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 13:49:40,787 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:49:40,788 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 13:49:40,788 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 13:49:40,789 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 13:49:40,790 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 13:49:40,805 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 13:49:40,806 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:49:40,809 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-23 13:49:40,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:49:40,937 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-07-23 13:49:40,939 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 13:49:40,941 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-23 13:49:40,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:49:40,959 INFO L225 Difference]: With dead ends: 11 [2018-07-23 13:49:40,959 INFO L226 Difference]: Without dead ends: 8 [2018-07-23 13:49:40,964 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 13:49:40,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-23 13:49:40,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-07-23 13:49:41,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-23 13:49:41,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-23 13:49:41,002 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-23 13:49:41,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:49:41,003 INFO L471 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-23 13:49:41,003 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 13:49:41,004 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-23 13:49:41,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-23 13:49:41,004 INFO L349 BasicCegarLoop]: Found error trace [2018-07-23 13:49:41,004 INFO L357 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-23 13:49:41,005 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 13:49:41,005 INFO L82 PathProgramCache]: Analyzing trace with hash 980190467, now seen corresponding path program 1 times [2018-07-23 13:49:41,005 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 13:49:41,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-23 13:49:41,136 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 13:49:41,137 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-23 13:49:41,137 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-23 13:49:41,137 INFO L142 lantAutomatonBuilder]: Constructing canonical interpolant automaton, with selfloop in false state [2018-07-23 13:49:41,138 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 13:49:41,138 INFO L185 omatonBuilderFactory]: Interpolants [49#true, 50#false, 51#(and (= ~mode5 (* 256 (div ~mode5 256))) (<= 0 ~send5) (= 0 (+ ~nomsg 1)) (<= ~send5 127) (= ~mode6 (* 256 (div ~mode6 256)))), 52#(and (<= 1 ~mode6) (not (= ~p5_old ~nomsg)) (<= ~mode6 1))] [2018-07-23 13:49:41,139 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 13:49:41,143 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 13:49:41,143 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 13:49:41,150 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-23 13:49:41,150 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-07-23 13:49:41,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 13:49:41,184 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-07-23 13:49:41,186 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 13:49:41,186 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-07-23 13:49:41,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 13:49:41,189 INFO L225 Difference]: With dead ends: 8 [2018-07-23 13:49:41,189 INFO L226 Difference]: Without dead ends: 0 [2018-07-23 13:49:41,190 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 13:49:41,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-23 13:49:41,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-23 13:49:41,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-23 13:49:41,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-23 13:49:41,193 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2018-07-23 13:49:41,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 13:49:41,193 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-23 13:49:41,193 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 13:49:41,193 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-23 13:49:41,194 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-23 13:49:41,199 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-23 13:49:41,263 INFO L421 ceAbstractionStarter]: For program point L347(lines 339 348) no Hoare annotation was computed. [2018-07-23 13:49:41,264 INFO L417 ceAbstractionStarter]: At program point L505(lines 505 512) the Hoare annotation is: (and (<= ULTIMATE.start_assert_~arg 1) (<= 1 ~mode6) (not (= ~p5_old ~nomsg)) (<= ~mode6 1) (<= 1 ULTIMATE.start_assert_~arg)) [2018-07-23 13:49:41,264 INFO L421 ceAbstractionStarter]: For program point L391(lines 383 392) no Hoare annotation was computed. [2018-07-23 13:49:41,266 INFO L421 ceAbstractionStarter]: For program point L374(lines 374 384) no Hoare annotation was computed. [2018-07-23 13:49:41,267 INFO L421 ceAbstractionStarter]: For program point L495(lines 490 496) no Hoare annotation was computed. [2018-07-23 13:49:41,267 INFO L421 ceAbstractionStarter]: For program point L413(lines 405 414) no Hoare annotation was computed. [2018-07-23 13:49:41,267 INFO L421 ceAbstractionStarter]: For program point L457(lines 449 458) no Hoare annotation was computed. [2018-07-23 13:49:41,267 INFO L421 ceAbstractionStarter]: For program point L418(lines 418 428) no Hoare annotation was computed. [2018-07-23 13:49:41,267 INFO L421 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 96 517) no Hoare annotation was computed. [2018-07-23 13:49:41,268 INFO L421 ceAbstractionStarter]: For program point L440(lines 440 450) no Hoare annotation was computed. [2018-07-23 13:49:41,271 INFO L421 ceAbstractionStarter]: For program point L484(lines 480 491) no Hoare annotation was computed. [2018-07-23 13:49:41,272 INFO L421 ceAbstractionStarter]: For program point L369(lines 361 370) no Hoare annotation was computed. [2018-07-23 13:49:41,272 INFO L421 ceAbstractionStarter]: For program point L328(lines 328 340) no Hoare annotation was computed. [2018-07-23 13:49:41,272 INFO L424 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 96 517) the Hoare annotation is: true [2018-07-23 13:49:41,272 INFO L417 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 96 517) the Hoare annotation is: false [2018-07-23 13:49:41,272 INFO L421 ceAbstractionStarter]: For program point L475(lines 475 481) no Hoare annotation was computed. [2018-07-23 13:49:41,273 INFO L421 ceAbstractionStarter]: For program point L352(lines 352 362) no Hoare annotation was computed. [2018-07-23 13:49:41,273 INFO L421 ceAbstractionStarter]: For program point L396(lines 396 406) no Hoare annotation was computed. [2018-07-23 13:49:41,273 INFO L421 ceAbstractionStarter]: For program point L435(lines 427 436) no Hoare annotation was computed. [2018-07-23 13:49:41,273 INFO L417 ceAbstractionStarter]: At program point L511(lines 511 515) the Hoare annotation is: false [2018-07-23 13:49:41,273 INFO L417 ceAbstractionStarter]: At program point ULTIMATE.startErr0AssertViolationASSERT(line 516) the Hoare annotation is: false [2018-07-23 13:49:41,274 INFO L417 ceAbstractionStarter]: At program point L514(lines 321 514) the Hoare annotation is: (or (and (<= 1 ~mode6) (not (= ~p5_old ~nomsg)) (<= ~mode6 1)) (and (= ~mode5 (* 256 (div ~mode5 256))) (<= 0 ~send5) (= ~mode1 (* 256 (div ~mode1 256))) (= 0 (+ ~nomsg 1)) (<= ~r1 (* 256 (div ~r1 256))) (<= ~send5 127) (= ~mode6 (* 256 (div ~mode6 256))))) [2018-07-23 13:49:41,290 INFO L202 PluginConnector]: Adding new model pals_lcr.6.1.ufo.UNBOUNDED.pals.c_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 01:49:41 BoogieIcfgContainer [2018-07-23 13:49:41,291 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 13:49:41,292 INFO L168 Benchmark]: Toolchain (without parser) took 2047.16 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: 116.3 MB). Peak memory consumption was 116.3 MB. Max. memory is 7.1 GB. [2018-07-23 13:49:41,295 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.25 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 13:49:41,296 INFO L168 Benchmark]: Boogie Preprocessor took 100.62 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 13:49:41,298 INFO L168 Benchmark]: RCFGBuilder took 1129.18 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-07-23 13:49:41,300 INFO L168 Benchmark]: TraceAbstraction took 810.97 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 13:49:41,306 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 0.25 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 100.62 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 1129.18 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 810.97 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: ((1 <= ~mode6 && !(~p5_old == ~nomsg)) && ~mode6 <= 1) || ((((((~mode5 == 256 * (~mode5 / 256) && 0 <= ~send5) && ~mode1 == 256 * (~mode1 / 256)) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) && ~send5 <= 127) && ~mode6 == 256 * (~mode6 / 256)) - InvariantResult [Line: 505]: Loop Invariant Derived loop invariant: (((assert_~arg <= 1 && 1 <= ~mode6) && !(~p5_old == ~nomsg)) && ~mode6 <= 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, 0.7s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 1 SDslu, 5 SDs, 0 SdLazy, 11 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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, 73 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.6.1.ufo.UNBOUNDED.pals.c_23.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_13-49-41-327.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr.6.1.ufo.UNBOUNDED.pals.c_23.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_13-49-41-327.csv Received shutdown request...