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.4_overflow.ufo.UNBOUNDED.pals.c_19.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 08:49:32,934 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 08:49:32,936 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 08:49:32,949 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 08:49:32,950 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 08:49:32,951 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 08:49:32,952 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 08:49:32,954 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 08:49:32,956 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 08:49:32,957 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 08:49:32,958 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 08:49:32,958 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 08:49:32,959 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 08:49:32,960 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 08:49:32,962 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 08:49:32,963 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 08:49:32,964 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 08:49:32,966 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 08:49:32,968 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 08:49:32,971 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 08:49:32,973 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 08:49:32,974 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 08:49:32,978 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 08:49:32,978 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 08:49:32,979 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 08:49:32,983 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 08:49:32,984 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 08:49:32,985 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 08:49:32,987 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 08:49:32,989 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 08:49:32,990 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 08:49:32,991 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-25 08:49:32,991 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-25 08:49:32,991 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-25 08:49:32,994 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-25 08:49:32,995 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-25 08:49:32,995 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf [2018-07-25 08:49:33,022 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 08:49:33,022 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 08:49:33,024 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-25 08:49:33,027 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-25 08:49:33,027 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 08:49:33,028 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-25 08:49:33,028 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 08:49:33,028 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 08:49:33,098 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 08:49:33,111 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 08:49:33,115 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 08:49:33,117 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 08:49:33,118 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 08:49:33,119 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c_19.bpl [2018-07-25 08:49:33,119 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c_19.bpl' [2018-07-25 08:49:33,215 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 08:49:33,217 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 08:49:33,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 08:49:33,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 08:49:33,218 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 08:49:33,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:33" (1/1) ... [2018-07-25 08:49:33,260 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:33" (1/1) ... [2018-07-25 08:49:33,269 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 08:49:33,270 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 08:49:33,270 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 08:49:33,271 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 08:49:33,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:33" (1/1) ... [2018-07-25 08:49:33,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:33" (1/1) ... [2018-07-25 08:49:33,295 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:33" (1/1) ... [2018-07-25 08:49:33,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:33" (1/1) ... [2018-07-25 08:49:33,312 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:33" (1/1) ... [2018-07-25 08:49:33,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:33" (1/1) ... [2018-07-25 08:49:33,322 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:33" (1/1) ... [2018-07-25 08:49:33,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 08:49:33,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 08:49:33,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 08:49:33,332 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 08:49:33,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:33" (1/1) ... [2018-07-25 08:49:33,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 08:49:33,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 08:49:34,229 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 08:49:34,230 INFO L202 PluginConnector]: Adding new model pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 08:49:34 BoogieIcfgContainer [2018-07-25 08:49:34,230 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 08:49:34,231 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 08:49:34,231 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 08:49:34,238 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 08:49:34,241 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 08:49:33" (1/2) ... [2018-07-25 08:49:34,242 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44dfe4b3 and model type pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 08:49:34, skipping insertion in model container [2018-07-25 08:49:34,242 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 08:49:34" (2/2) ... [2018-07-25 08:49:34,248 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c_19.bpl [2018-07-25 08:49:34,259 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-25 08:49:34,269 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 08:49:34,314 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 08:49:34,314 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 08:49:34,315 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 08:49:34,315 INFO L376 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-25 08:49:34,315 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 08:49:34,315 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 08:49:34,315 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 08:49:34,316 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 08:49:34,316 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 08:49:34,329 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-07-25 08:49:34,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-07-25 08:49:34,337 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:49:34,338 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-07-25 08:49:34,339 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:49:34,344 INFO L82 PathProgramCache]: Analyzing trace with hash 998225, now seen corresponding path program 1 times [2018-07-25 08:49:34,350 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:49:34,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:49:34,489 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 08:49:34,492 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 08:49:34,492 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 08:49:34,497 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 08:49:34,513 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 08:49:34,513 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:49:34,516 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-07-25 08:49:34,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:49:34,631 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-07-25 08:49:34,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 08:49:34,634 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-07-25 08:49:34,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:49:34,649 INFO L225 Difference]: With dead ends: 11 [2018-07-25 08:49:34,650 INFO L226 Difference]: Without dead ends: 8 [2018-07-25 08:49:34,655 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 08:49:34,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-07-25 08:49:34,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-07-25 08:49:34,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-07-25 08:49:34,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-07-25 08:49:34,700 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-07-25 08:49:34,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:49:34,701 INFO L472 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-07-25 08:49:34,701 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 08:49:34,701 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-07-25 08:49:34,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-07-25 08:49:34,702 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 08:49:34,702 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-07-25 08:49:34,703 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 08:49:34,703 INFO L82 PathProgramCache]: Analyzing trace with hash 959374695, now seen corresponding path program 1 times [2018-07-25 08:49:34,704 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 08:49:34,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 08:49:34,854 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 08:49:34,855 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 08:49:34,855 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-07-25 08:49:34,858 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 08:49:34,858 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 08:49:34,858 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 08:49:34,859 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-07-25 08:49:34,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 08:49:34,901 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-07-25 08:49:34,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 08:49:34,907 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-07-25 08:49:34,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 08:49:34,908 INFO L225 Difference]: With dead ends: 8 [2018-07-25 08:49:34,908 INFO L226 Difference]: Without dead ends: 0 [2018-07-25 08:49:34,911 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 08:49:34,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-25 08:49:34,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-25 08:49:34,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-25 08:49:34,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-25 08:49:34,913 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2018-07-25 08:49:34,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 08:49:34,913 INFO L472 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-25 08:49:34,914 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 08:49:34,914 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-25 08:49:34,914 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-25 08:49:34,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-25 08:49:34,974 INFO L422 ceAbstractionStarter]: For program point L254(lines 254 264) no Hoare annotation was computed. [2018-07-25 08:49:34,975 INFO L422 ceAbstractionStarter]: For program point L349(lines 344 350) no Hoare annotation was computed. [2018-07-25 08:49:34,976 INFO L418 ceAbstractionStarter]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 370) the Hoare annotation is: false [2018-07-25 08:49:34,976 INFO L422 ceAbstractionStarter]: For program point L271(lines 263 272) no Hoare annotation was computed. [2018-07-25 08:49:34,976 INFO L422 ceAbstractionStarter]: For program point L329(lines 329 335) no Hoare annotation was computed. [2018-07-25 08:49:34,977 INFO L425 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 66 371) the Hoare annotation is: true [2018-07-25 08:49:34,977 INFO L422 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 66 371) no Hoare annotation was computed. [2018-07-25 08:49:34,977 INFO L422 ceAbstractionStarter]: For program point L276(lines 276 286) no Hoare annotation was computed. [2018-07-25 08:49:34,977 INFO L422 ceAbstractionStarter]: For program point L338(lines 334 345) no Hoare annotation was computed. [2018-07-25 08:49:34,977 INFO L422 ceAbstractionStarter]: For program point L231(lines 231 242) no Hoare annotation was computed. [2018-07-25 08:49:34,978 INFO L418 ceAbstractionStarter]: At program point L359(lines 359 366) the Hoare annotation is: (and (= ~mode4 1) (= ULTIMATE.start_assert_~arg 1) (not (= ~p3_old ~nomsg))) [2018-07-25 08:49:34,978 INFO L422 ceAbstractionStarter]: For program point L293(lines 285 294) no Hoare annotation was computed. [2018-07-25 08:49:34,978 INFO L418 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 66 371) the Hoare annotation is: false [2018-07-25 08:49:34,979 INFO L418 ceAbstractionStarter]: At program point L368(lines 224 368) the Hoare annotation is: (or (and (= ~mode4 1) (not (= ~p3_old ~nomsg))) (and (<= ~send3 127) (= ~mode3 (* 256 (div ~mode3 256))) (= ~mode1 (* 256 (div ~mode1 256))) (= 0 (+ ~nomsg 1)) (<= ~r1 (* 256 (div ~r1 256))) (= ~mode4 (* 256 (div ~mode4 256))) (<= 0 ~send3))) [2018-07-25 08:49:34,981 INFO L422 ceAbstractionStarter]: For program point L298(lines 298 309) no Hoare annotation was computed. [2018-07-25 08:49:34,981 INFO L422 ceAbstractionStarter]: For program point L315(lines 308 316) no Hoare annotation was computed. [2018-07-25 08:49:34,981 INFO L422 ceAbstractionStarter]: For program point L249(lines 241 250) no Hoare annotation was computed. [2018-07-25 08:49:34,981 INFO L418 ceAbstractionStarter]: At program point L365(lines 365 369) the Hoare annotation is: false [2018-07-25 08:49:34,996 INFO L202 PluginConnector]: Adding new model pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c_19.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 08:49:34 BoogieIcfgContainer [2018-07-25 08:49:34,996 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 08:49:34,997 INFO L168 Benchmark]: Toolchain (without parser) took 1781.32 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: 74.0 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2018-07-25 08:49:34,999 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 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 08:49:35,000 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.27 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 08:49:35,001 INFO L168 Benchmark]: Boogie Preprocessor took 60.62 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. [2018-07-25 08:49:35,001 INFO L168 Benchmark]: RCFGBuilder took 899.06 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-25 08:49:35,003 INFO L168 Benchmark]: TraceAbstraction took 764.67 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. [2018-07-25 08:49:35,011 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 0.22 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 52.27 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 60.62 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 899.06 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 764.67 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: 370]: 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: 365]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 359]: Loop Invariant Derived loop invariant: (~mode4 == 1 && assert_~arg == 1) && !(~p3_old == ~nomsg) - InvariantResult [Line: 224]: Loop Invariant Derived loop invariant: (~mode4 == 1 && !(~p3_old == ~nomsg)) || ((((((~send3 <= 127 && ~mode3 == 256 * (~mode3 / 256)) && ~mode1 == 256 * (~mode1 / 256)) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) && ~mode4 == 256 * (~mode4 / 256)) && 0 <= ~send3) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. SAFE Result, 0.6s 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, 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, 64 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, 277 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.4_overflow.ufo.UNBOUNDED.pals.c_19.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_08-49-35-032.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr.4_overflow.ufo.UNBOUNDED.pals.c_19.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_08-49-35-032.csv Received shutdown request...