java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf -i ../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 08:41:39,358 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 08:41:39,360 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 08:41:39,373 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 08:41:39,373 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 08:41:39,374 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 08:41:39,376 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 08:41:39,379 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 08:41:39,382 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 08:41:39,385 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 08:41:39,388 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 08:41:39,388 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 08:41:39,389 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 08:41:39,390 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 08:41:39,397 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 08:41:39,398 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 08:41:39,399 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 08:41:39,405 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 08:41:39,409 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 08:41:39,411 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 08:41:39,412 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 08:41:39,416 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 08:41:39,422 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 08:41:39,422 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 08:41:39,422 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 08:41:39,425 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 08:41:39,427 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 08:41:39,428 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 08:41:39,428 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 08:41:39,432 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 08:41:39,432 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 08:41:39,433 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-25 08:41:39,434 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-25 08:41:39,434 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-25 08:41:39,437 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-25 08:41:39,438 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-25 08:41:39,439 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf [2018-07-25 08:41:39,464 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 08:41:39,464 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 08:41:39,465 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-25 08:41:39,466 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-25 08:41:39,466 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 08:41:39,466 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-25 08:41:39,467 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 08:41:39,467 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 08:41:39,535 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 08:41:39,553 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 08:41:39,558 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 08:41:39,560 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 08:41:39,561 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 08:41:39,562 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl [2018-07-25 08:41:39,562 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170319-ConjunctivePathPrograms/pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl' [2018-07-25 08:41:39,666 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 08:41:39,668 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 08:41:39,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 08:41:39,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 08:41:39,669 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 08:41:39,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:41:39" (1/1) ... [2018-07-25 08:41:39,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:41:39" (1/1) ... [2018-07-25 08:41:39,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 08:41:39,719 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 08:41:39,719 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 08:41:39,719 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 08:41:39,730 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:41:39" (1/1) ... [2018-07-25 08:41:39,730 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:41:39" (1/1) ... [2018-07-25 08:41:39,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:41:39" (1/1) ... [2018-07-25 08:41:39,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:41:39" (1/1) ... [2018-07-25 08:41:39,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:41:39" (1/1) ... [2018-07-25 08:41:39,750 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:41:39" (1/1) ... [2018-07-25 08:41:39,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:41:39" (1/1) ... [2018-07-25 08:41:39,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 08:41:39,757 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 08:41:39,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 08:41:39,757 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 08:41:39,758 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:41:39" (1/1) ... [2018-07-25 08:41:39,834 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2018-07-25 08:41:39,835 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 08:41:39,835 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 08:41:40,547 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 08:41:40,549 INFO L202 PluginConnector]: Adding new model pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 08:41:40 BoogieIcfgContainer [2018-07-25 08:41:40,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 08:41:40,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 08:41:40,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 08:41:40,555 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 08:41:40,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:41:39" (1/2) ... [2018-07-25 08:41:40,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7357136c and model type pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 08:41:40, skipping insertion in model container [2018-07-25 08:41:40,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 08:41:40" (2/2) ... [2018-07-25 08:41:40,559 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl [2018-07-25 08:41:40,570 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-25 08:41:40,580 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 08:41:40,621 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 08:41:40,621 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 08:41:40,622 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 08:41:40,622 INFO L376 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-25 08:41:40,622 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 08:41:40,622 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 08:41:40,622 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 08:41:40,622 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 08:41:40,623 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 08:41:40,634 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-25 08:41:40,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 08:41:40,643 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:41:40,644 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 08:41:40,645 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:41:40,653 INFO L82 PathProgramCache]: Analyzing trace with hash 998287, now seen corresponding path program 1 times [2018-07-25 08:41:40,659 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:41:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:41:40,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:41:40,802 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:41:40,802 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 08:41:40,807 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 08:41:40,820 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 08:41:40,820 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:41:40,823 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-25 08:41:40,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:41:40,878 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2018-07-25 08:41:40,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 08:41:40,880 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-25 08:41:40,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:41:40,891 INFO L225 Difference]: With dead ends: 10 [2018-07-25 08:41:40,892 INFO L226 Difference]: Without dead ends: 7 [2018-07-25 08:41:40,895 INFO L574 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 [2018-07-25 08:41:40,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2018-07-25 08:41:40,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2018-07-25 08:41:40,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-25 08:41:40,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-25 08:41:40,932 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-25 08:41:40,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:41:40,933 INFO L472 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-25 08:41:40,933 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 08:41:40,933 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-25 08:41:40,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:41:40,934 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:41:40,934 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-25 08:41:40,934 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:41:40,935 INFO L82 PathProgramCache]: Analyzing trace with hash 959315175, now seen corresponding path program 1 times [2018-07-25 08:41:40,935 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:41:40,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:41:40,991 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 08:41:40,992 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:41:40,992 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-25 08:41:40,994 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 08:41:40,994 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 08:41:40,995 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:41:40,995 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-07-25 08:41:41,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:41:41,019 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-07-25 08:41:41,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 08:41:41,021 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-07-25 08:41:41,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:41:41,023 INFO L225 Difference]: With dead ends: 8 [2018-07-25 08:41:41,023 INFO L226 Difference]: Without dead ends: 0 [2018-07-25 08:41:41,026 INFO L574 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 [2018-07-25 08:41:41,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-25 08:41:41,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-25 08:41:41,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-25 08:41:41,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-25 08:41:41,028 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2018-07-25 08:41:41,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:41:41,028 INFO L472 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-25 08:41:41,029 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 08:41:41,029 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-25 08:41:41,029 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-25 08:41:41,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-25 08:41:41,090 INFO L422 ceAbstractionStarter]: For program point L225(lines 225 235) no Hoare annotation was computed. [2018-07-25 08:41:41,090 INFO L422 ceAbstractionStarter]: For program point L275(lines 270 276) no Hoare annotation was computed. [2018-07-25 08:41:41,091 INFO L418 ceAbstractionStarter]: At program point L304(lines 171 304) the Hoare annotation is: (or (and (not (= 0 ULTIMATE.start_assert_~arg)) (= ~p3_old ~send3) (<= ~mode1 1) (not (= ~send3 ~nomsg))) (and (<= ~r1 0) (= ~mode1 256) (= ~mode3 0))) [2018-07-25 08:41:41,091 INFO L418 ceAbstractionStarter]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 309) the Hoare annotation is: false [2018-07-25 08:41:41,092 INFO L418 ceAbstractionStarter]: At program point L296(lines 296 305) the Hoare annotation is: (and (not (= 0 ULTIMATE.start_assert_~arg)) (= ~p3_old ~send3) (<= ~mode1 1) (not (= ~send3 ~nomsg))) [2018-07-25 08:41:41,092 INFO L422 ceAbstractionStarter]: For program point L197(lines 188 198) no Hoare annotation was computed. [2018-07-25 08:41:41,092 INFO L422 ceAbstractionStarter]: For program point L292(lines 288 293) no Hoare annotation was computed. [2018-07-25 08:41:41,092 INFO L422 ceAbstractionStarter]: For program point L255(lines 255 262) no Hoare annotation was computed. [2018-07-25 08:41:41,092 INFO L425 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 41 310) the Hoare annotation is: true [2018-07-25 08:41:41,093 INFO L422 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 41 310) no Hoare annotation was computed. [2018-07-25 08:41:41,093 INFO L422 ceAbstractionStarter]: For program point L243(lines 234 244) no Hoare annotation was computed. [2018-07-25 08:41:41,093 INFO L422 ceAbstractionStarter]: For program point L177(lines 177 189) no Hoare annotation was computed. [2018-07-25 08:41:41,093 INFO L422 ceAbstractionStarter]: For program point L202(lines 202 212) no Hoare annotation was computed. [2018-07-25 08:41:41,093 INFO L422 ceAbstractionStarter]: For program point L264(lines 261 271) no Hoare annotation was computed. [2018-07-25 08:41:41,094 INFO L418 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 41 310) the Hoare annotation is: false [2018-07-25 08:41:41,094 INFO L422 ceAbstractionStarter]: For program point L220(lines 211 221) no Hoare annotation was computed. [2018-07-25 08:41:41,094 INFO L422 ceAbstractionStarter]: For program point L282(lines 282 289) no Hoare annotation was computed. [2018-07-25 08:41:41,094 INFO L418 ceAbstractionStarter]: At program point L307(lines 307 308) the Hoare annotation is: false [2018-07-25 08:41:41,111 INFO L202 PluginConnector]: Adding new model pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 08:41:41 BoogieIcfgContainer [2018-07-25 08:41:41,111 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 08:41:41,112 INFO L168 Benchmark]: Toolchain (without parser) took 1445.11 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: 63.4 MB). Peak memory consumption was 63.4 MB. Max. memory is 7.1 GB. [2018-07-25 08:41:41,117 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. [2018-07-25 08:41:41,118 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.13 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. [2018-07-25 08:41:41,119 INFO L168 Benchmark]: Boogie Preprocessor took 37.64 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. [2018-07-25 08:41:41,121 INFO L168 Benchmark]: RCFGBuilder took 792.55 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. [2018-07-25 08:41:41,122 INFO L168 Benchmark]: TraceAbstraction took 561.04 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. [2018-07-25 08:41:41,127 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 Procedure Inliner took 49.13 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 37.64 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 792.55 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 561.04 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 309]: 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: 307]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 296]: Loop Invariant Derived loop invariant: ((!(0 == assert_~arg) && ~p3_old == ~send3) && ~mode1 <= 1) && !(~send3 == ~nomsg) - InvariantResult [Line: 171]: Loop Invariant Derived loop invariant: (((!(0 == assert_~arg) && ~p3_old == ~send3) && ~mode1 <= 1) && !(~send3 == ~nomsg)) || ((~r1 <= 0 && ~mode1 == 256) && ~mode3 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 1 SDslu, 5 SDs, 0 SdLazy, 10 SolverSat, 1 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, 0/0 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 9 NumberOfFragments, 45 HoareAnnotationTreeSize, 6 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 191 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.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_08-41-41-147.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr.3.ufo.BOUNDED-6.pals.c_13.bplTransformedIcfg_BEv2_23.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_08-41-41-147.csv Received shutdown request...