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/20170304-DifficultPathPrograms/pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 08:49:36,657 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 08:49:36,659 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 08:49:36,672 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 08:49:36,673 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 08:49:36,674 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 08:49:36,675 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 08:49:36,677 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 08:49:36,680 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 08:49:36,681 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 08:49:36,682 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 08:49:36,682 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 08:49:36,684 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 08:49:36,685 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 08:49:36,686 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 08:49:36,687 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 08:49:36,688 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 08:49:36,690 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 08:49:36,692 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 08:49:36,694 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 08:49:36,695 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 08:49:36,697 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 08:49:36,700 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 08:49:36,700 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 08:49:36,700 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 08:49:36,701 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 08:49:36,702 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 08:49:36,703 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 08:49:36,704 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 08:49:36,705 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 08:49:36,706 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 08:49:36,707 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-25 08:49:36,707 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-25 08:49:36,707 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-25 08:49:36,708 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-25 08:49:36,709 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-25 08:49:36,709 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf [2018-07-25 08:49:36,728 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 08:49:36,728 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 08:49:36,730 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-25 08:49:36,730 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-25 08:49:36,730 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 08:49:36,731 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-25 08:49:36,731 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 08:49:36,731 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 08:49:36,788 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 08:49:36,805 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 08:49:36,812 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 08:49:36,814 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 08:49:36,815 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 08:49:36,816 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl [2018-07-25 08:49:36,816 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl' [2018-07-25 08:49:36,930 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 08:49:36,932 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 08:49:36,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 08:49:36,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 08:49:36,934 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 08:49:36,955 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:36" (1/1) ... [2018-07-25 08:49:36,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:36" (1/1) ... [2018-07-25 08:49:36,994 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 08:49:36,995 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 08:49:36,995 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 08:49:36,995 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 08:49:37,007 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:36" (1/1) ... [2018-07-25 08:49:37,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:36" (1/1) ... [2018-07-25 08:49:37,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:36" (1/1) ... [2018-07-25 08:49:37,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:36" (1/1) ... [2018-07-25 08:49:37,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:36" (1/1) ... [2018-07-25 08:49:37,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:36" (1/1) ... [2018-07-25 08:49:37,050 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:36" (1/1) ... [2018-07-25 08:49:37,058 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 08:49:37,059 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 08:49:37,059 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 08:49:37,059 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 08:49:37,068 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:36" (1/1) ... [2018-07-25 08:49:37,148 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 08:49:37,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 08:49:38,102 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 08:49:38,103 INFO L202 PluginConnector]: Adding new model pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 08:49:38 BoogieIcfgContainer [2018-07-25 08:49:38,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 08:49:38,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 08:49:38,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 08:49:38,109 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 08:49:38,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:36" (1/2) ... [2018-07-25 08:49:38,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27eb2f53 and model type pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 08:49:38, skipping insertion in model container [2018-07-25 08:49:38,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 08:49:38" (2/2) ... [2018-07-25 08:49:38,113 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl [2018-07-25 08:49:38,124 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-25 08:49:38,133 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 08:49:38,180 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 08:49:38,181 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 08:49:38,181 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 08:49:38,181 INFO L376 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-25 08:49:38,182 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 08:49:38,182 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 08:49:38,182 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 08:49:38,182 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 08:49:38,182 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 08:49:38,197 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-25 08:49:38,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 08:49:38,207 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:49:38,210 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 08:49:38,211 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:49:38,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1009052, now seen corresponding path program 1 times [2018-07-25 08:49:38,228 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:49:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:49:38,432 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 08:49:38,435 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:49:38,436 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 08:49:38,441 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 08:49:38,457 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 08:49:38,458 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:49:38,461 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-25 08:49:38,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:49:38,557 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-07-25 08:49:38,558 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 08:49:38,560 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-25 08:49:38,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:49:38,572 INFO L225 Difference]: With dead ends: 11 [2018-07-25 08:49:38,572 INFO L226 Difference]: Without dead ends: 8 [2018-07-25 08:49:38,576 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 08:49:38,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-25 08:49:38,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-07-25 08:49:38,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-25 08:49:38,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-25 08:49:38,616 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-25 08:49:38,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:49:38,617 INFO L472 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-25 08:49:38,617 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 08:49:38,617 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-25 08:49:38,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:49:38,618 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:49:38,618 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-25 08:49:38,619 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:49:38,620 INFO L82 PathProgramCache]: Analyzing trace with hash 969782581, now seen corresponding path program 1 times [2018-07-25 08:49:38,620 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:49:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:49:38,719 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 08:49:38,719 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:49:38,720 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-25 08:49:38,723 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 08:49:38,723 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 08:49:38,724 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:49:38,724 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-07-25 08:49:38,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:49:38,771 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-07-25 08:49:38,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 08:49:38,773 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-07-25 08:49:38,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:49:38,773 INFO L225 Difference]: With dead ends: 8 [2018-07-25 08:49:38,774 INFO L226 Difference]: Without dead ends: 0 [2018-07-25 08:49:38,775 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 08:49:38,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-25 08:49:38,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-25 08:49:38,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-25 08:49:38,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-25 08:49:38,777 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2018-07-25 08:49:38,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:49:38,778 INFO L472 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-25 08:49:38,778 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 08:49:38,778 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-25 08:49:38,778 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-25 08:49:38,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-25 08:49:38,835 INFO L418 ceAbstractionStarter]: At program point L440(lines 272 440) the Hoare annotation is: (or (and (= ~mode5 (* 256 (div ~mode5 256))) (= ~mode1 (* 256 (div ~mode1 256))) (<= 0 ~send4) (<= ~send4 127) (= 0 (+ ~nomsg 1)) (<= ~r1 (* 256 (div ~r1 256))) (= ~mode4 (* 256 (div ~mode4 256)))) (and (<= 1 ~mode5) (not (= ~p4_old ~nomsg)) (<= ~mode5 1))) [2018-07-25 08:49:38,835 INFO L422 ceAbstractionStarter]: For program point L279(lines 279 290) no Hoare annotation was computed. [2018-07-25 08:49:38,836 INFO L422 ceAbstractionStarter]: For program point L341(lines 333 342) no Hoare annotation was computed. [2018-07-25 08:49:38,836 INFO L425 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 81 443) the Hoare annotation is: true [2018-07-25 08:49:38,836 INFO L422 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 81 443) no Hoare annotation was computed. [2018-07-25 08:49:38,837 INFO L422 ceAbstractionStarter]: For program point L346(lines 346 356) no Hoare annotation was computed. [2018-07-25 08:49:38,837 INFO L418 ceAbstractionStarter]: At program point L437(lines 437 441) the Hoare annotation is: false [2018-07-25 08:49:38,838 INFO L422 ceAbstractionStarter]: For program point L363(lines 355 364) no Hoare annotation was computed. [2018-07-25 08:49:38,838 INFO L422 ceAbstractionStarter]: For program point L297(lines 289 298) no Hoare annotation was computed. [2018-07-25 08:49:38,838 INFO L422 ceAbstractionStarter]: For program point L421(lines 416 422) no Hoare annotation was computed. [2018-07-25 08:49:38,838 INFO L418 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 81 443) the Hoare annotation is: false [2018-07-25 08:49:38,839 INFO L418 ceAbstractionStarter]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 442) the Hoare annotation is: false [2018-07-25 08:49:38,839 INFO L422 ceAbstractionStarter]: For program point L401(lines 401 407) no Hoare annotation was computed. [2018-07-25 08:49:38,839 INFO L422 ceAbstractionStarter]: For program point L368(lines 368 378) no Hoare annotation was computed. [2018-07-25 08:49:38,839 INFO L422 ceAbstractionStarter]: For program point L302(lines 302 313) no Hoare annotation was computed. [2018-07-25 08:49:38,840 INFO L422 ceAbstractionStarter]: For program point L385(lines 377 386) no Hoare annotation was computed. [2018-07-25 08:49:38,840 INFO L422 ceAbstractionStarter]: For program point L319(lines 312 320) no Hoare annotation was computed. [2018-07-25 08:49:38,840 INFO L422 ceAbstractionStarter]: For program point L410(lines 406 417) no Hoare annotation was computed. [2018-07-25 08:49:38,840 INFO L418 ceAbstractionStarter]: At program point L431(lines 431 438) the Hoare annotation is: (and (<= 1 ~mode5) (not (= ~p4_old ~nomsg)) (= 1 ULTIMATE.start_assert_~arg) (<= ~mode5 1)) [2018-07-25 08:49:38,841 INFO L422 ceAbstractionStarter]: For program point L324(lines 324 334) no Hoare annotation was computed. [2018-07-25 08:49:38,859 INFO L202 PluginConnector]: Adding new model pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 08:49:38 BoogieIcfgContainer [2018-07-25 08:49:38,860 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 08:49:38,861 INFO L168 Benchmark]: Toolchain (without parser) took 1929.56 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. [2018-07-25 08:49:38,864 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.24 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. [2018-07-25 08:49:38,865 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.87 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. [2018-07-25 08:49:38,867 INFO L168 Benchmark]: Boogie Preprocessor took 63.56 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. [2018-07-25 08:49:38,868 INFO L168 Benchmark]: RCFGBuilder took 1044.84 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. [2018-07-25 08:49:38,869 INFO L168 Benchmark]: TraceAbstraction took 755.10 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. [2018-07-25 08:49:38,875 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 0.24 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 Procedure Inliner took 60.87 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 63.56 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 1044.84 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 755.10 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: 442]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 272]: Loop Invariant Derived loop invariant: ((((((~mode5 == 256 * (~mode5 / 256) && ~mode1 == 256 * (~mode1 / 256)) && 0 <= ~send4) && ~send4 <= 127) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) && ~mode4 == 256 * (~mode4 / 256)) || ((1 <= ~mode5 && !(~p4_old == ~nomsg)) && ~mode5 <= 1) - InvariantResult [Line: 437]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 431]: Loop Invariant Derived loop invariant: ((1 <= ~mode5 && !(~p4_old == ~nomsg)) && 1 == assert_~arg) && ~mode5 <= 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 1 SDslu, 5 SDs, 0 SdLazy, 11 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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, 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, 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, 0.1s 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.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_08-49-38-891.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr.5_overflow.ufo.UNBOUNDED.pals.c_21.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_08-49-38-891.csv Received shutdown request...