java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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-var-start-time.5.2.ufo.UNBOUNDED.pals.c_12.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 08:19:13,920 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 08:19:13,922 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 08:19:13,934 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 08:19:13,935 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 08:19:13,936 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 08:19:13,937 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 08:19:13,939 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 08:19:13,941 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 08:19:13,942 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 08:19:13,942 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 08:19:13,943 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 08:19:13,944 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 08:19:13,945 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 08:19:13,949 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 08:19:13,950 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 08:19:13,951 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 08:19:13,959 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 08:19:13,965 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 08:19:13,970 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 08:19:13,971 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 08:19:13,972 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 08:19:13,979 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 08:19:13,980 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 08:19:13,980 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 08:19:13,981 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 08:19:13,982 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 08:19:13,984 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 08:19:13,985 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 08:19:13,989 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 08:19:13,989 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 08:19:13,990 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-26 08:19:13,994 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf [2018-09-26 08:19:14,013 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 08:19:14,013 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 08:19:14,014 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 08:19:14,015 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-09-26 08:19:14,015 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 08:19:14,015 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-09-26 08:19:14,018 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-09-26 08:19:14,019 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 08:19:14,076 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 08:19:14,092 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 08:19:14,095 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 08:19:14,097 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 08:19:14,097 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 08:19:14,098 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c_12.bpl [2018-09-26 08:19:14,098 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c_12.bpl' [2018-09-26 08:19:14,168 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 08:19:14,171 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 08:19:14,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 08:19:14,173 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 08:19:14,173 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 08:19:14,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:14" (1/1) ... [2018-09-26 08:19:14,211 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:14" (1/1) ... [2018-09-26 08:19:14,220 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 08:19:14,221 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 08:19:14,221 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 08:19:14,221 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 08:19:14,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:14" (1/1) ... [2018-09-26 08:19:14,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:14" (1/1) ... [2018-09-26 08:19:14,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:14" (1/1) ... [2018-09-26 08:19:14,237 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:14" (1/1) ... [2018-09-26 08:19:14,247 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:14" (1/1) ... [2018-09-26 08:19:14,250 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:14" (1/1) ... [2018-09-26 08:19:14,253 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:14" (1/1) ... [2018-09-26 08:19:14,257 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 08:19:14,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 08:19:14,258 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 08:19:14,258 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 08:19:14,259 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:14" (1/1) ... [2018-09-26 08:19:14,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 08:19:14,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 08:19:15,316 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 08:19:15,317 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:19:15 BoogieIcfgContainer [2018-09-26 08:19:15,318 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 08:19:15,323 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 08:19:15,323 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 08:19:15,327 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 08:19:15,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c_12.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 08:19:14" (1/2) ... [2018-09-26 08:19:15,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ce001b0 and model type pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 08:19:15, skipping insertion in model container [2018-09-26 08:19:15,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 08:19:15" (2/2) ... [2018-09-26 08:19:15,331 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c_12.bpl [2018-09-26 08:19:15,341 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-09-26 08:19:15,351 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 08:19:15,393 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 08:19:15,394 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 08:19:15,394 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 08:19:15,394 INFO L383 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-09-26 08:19:15,394 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 08:19:15,394 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 08:19:15,394 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 08:19:15,395 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 08:19:15,395 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 08:19:15,407 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2018-09-26 08:19:15,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-09-26 08:19:15,416 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:19:15,417 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-09-26 08:19:15,418 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:19:15,425 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:19:15,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1001172, now seen corresponding path program 1 times [2018-09-26 08:19:15,432 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:19:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:19:15,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:19:15,617 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 08:19:15,618 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 08:19:15,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 08:19:15,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 08:19:15,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:19:15,642 INFO L87 Difference]: Start difference. First operand 6 states. Second operand 4 states. [2018-09-26 08:19:15,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:19:15,721 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2018-09-26 08:19:15,721 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 08:19:15,723 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2018-09-26 08:19:15,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:19:15,735 INFO L225 Difference]: With dead ends: 11 [2018-09-26 08:19:15,735 INFO L226 Difference]: Without dead ends: 8 [2018-09-26 08:19:15,739 INFO L605 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 [2018-09-26 08:19:15,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-09-26 08:19:15,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 7. [2018-09-26 08:19:15,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2018-09-26 08:19:15,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2018-09-26 08:19:15,779 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 4 [2018-09-26 08:19:15,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:19:15,779 INFO L480 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2018-09-26 08:19:15,779 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 08:19:15,780 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2018-09-26 08:19:15,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-09-26 08:19:15,780 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 08:19:15,781 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2018-09-26 08:19:15,781 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 08:19:15,781 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 08:19:15,782 INFO L82 PathProgramCache]: Analyzing trace with hash 962207787, now seen corresponding path program 1 times [2018-09-26 08:19:15,782 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 08:19:15,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-09-26 08:19:15,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-09-26 08:19:15,927 INFO L313 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-09-26 08:19:15,928 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2018-09-26 08:19:15,929 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 08:19:15,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 08:19:15,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-09-26 08:19:15,931 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 4 states. [2018-09-26 08:19:15,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 08:19:15,957 INFO L93 Difference]: Finished difference Result 8 states and 8 transitions. [2018-09-26 08:19:15,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 08:19:15,958 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2018-09-26 08:19:15,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 08:19:15,959 INFO L225 Difference]: With dead ends: 8 [2018-09-26 08:19:15,959 INFO L226 Difference]: Without dead ends: 0 [2018-09-26 08:19:15,960 INFO L605 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 [2018-09-26 08:19:15,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-09-26 08:19:15,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-09-26 08:19:15,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-09-26 08:19:15,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-09-26 08:19:15,962 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2018-09-26 08:19:15,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 08:19:15,962 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-09-26 08:19:15,963 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 08:19:15,963 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-09-26 08:19:15,963 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-09-26 08:19:15,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-09-26 08:19:16,022 INFO L426 ceAbstractionStarter]: For program point L353(lines 344 354) no Hoare annotation was computed. [2018-09-26 08:19:16,023 INFO L422 ceAbstractionStarter]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 461) the Hoare annotation is: false [2018-09-26 08:19:16,023 INFO L426 ceAbstractionStarter]: For program point L378(lines 378 387) no Hoare annotation was computed. [2018-09-26 08:19:16,023 INFO L426 ceAbstractionStarter]: For program point L440(lines 435 441) no Hoare annotation was computed. [2018-09-26 08:19:16,023 INFO L426 ceAbstractionStarter]: For program point L358(lines 358 368) no Hoare annotation was computed. [2018-09-26 08:19:16,024 INFO L429 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 91 462) the Hoare annotation is: true [2018-09-26 08:19:16,024 INFO L426 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 91 462) no Hoare annotation was computed. [2018-09-26 08:19:16,024 INFO L426 ceAbstractionStarter]: For program point L429(lines 429 436) no Hoare annotation was computed. [2018-09-26 08:19:16,024 INFO L426 ceAbstractionStarter]: For program point L330(lines 325 331) no Hoare annotation was computed. [2018-09-26 08:19:16,025 INFO L422 ceAbstractionStarter]: At program point L450(lines 450 457) the Hoare annotation is: (and (<= ULTIMATE.start_assert_~arg 1) (not (= ~p2_old ~nomsg)) (<= ~mode3 1) (<= 1 ~mode3) (<= 1 ULTIMATE.start_assert_~arg)) [2018-09-26 08:19:16,025 INFO L422 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 91 462) the Hoare annotation is: false [2018-09-26 08:19:16,026 INFO L426 ceAbstractionStarter]: For program point L413(lines 407 414) no Hoare annotation was computed. [2018-09-26 08:19:16,026 INFO L426 ceAbstractionStarter]: For program point L314(lines 314 326) no Hoare annotation was computed. [2018-09-26 08:19:16,026 INFO L426 ceAbstractionStarter]: For program point L335(lines 335 345) no Hoare annotation was computed. [2018-09-26 08:19:16,027 INFO L422 ceAbstractionStarter]: At program point L459(lines 307 459) the Hoare annotation is: (or (and (not (= ~p2_old ~nomsg)) (<= ~mode3 1) (<= 1 ~mode3)) (and (= ~mode3 (* 256 (div ~mode3 256))) (= ~mode1 (* 256 (div ~mode1 256))) (<= ~send2 127) (= ~mode2 (* 256 (div ~mode2 256))) (<= 0 ~send2) (= 0 (+ ~nomsg 1)) (<= ~r1 (* 256 (div ~r1 256))))) [2018-09-26 08:19:16,027 INFO L426 ceAbstractionStarter]: For program point L393(lines 386 394) no Hoare annotation was computed. [2018-09-26 08:19:16,028 INFO L426 ceAbstractionStarter]: For program point L373(lines 367 374) no Hoare annotation was computed. [2018-09-26 08:19:16,028 INFO L426 ceAbstractionStarter]: For program point L398(lines 398 408) no Hoare annotation was computed. [2018-09-26 08:19:16,028 INFO L422 ceAbstractionStarter]: At program point L456(lines 456 460) the Hoare annotation is: false [2018-09-26 08:19:16,050 INFO L202 PluginConnector]: Adding new model pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c_12.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 08:19:16 BoogieIcfgContainer [2018-09-26 08:19:16,050 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 08:19:16,051 INFO L168 Benchmark]: Toolchain (without parser) took 1882.20 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: 84.6 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2018-09-26 08:19:16,054 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.17 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. [2018-09-26 08:19:16,055 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.82 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. [2018-09-26 08:19:16,056 INFO L168 Benchmark]: Boogie Preprocessor took 36.45 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. [2018-09-26 08:19:16,057 INFO L168 Benchmark]: RCFGBuilder took 1060.27 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. [2018-09-26 08:19:16,058 INFO L168 Benchmark]: TraceAbstraction took 727.28 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. [2018-09-26 08:19:16,063 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 0.17 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 47.82 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 36.45 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 1060.27 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. * TraceAbstraction took 727.28 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: 461]: 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: 456]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 450]: Loop Invariant Derived loop invariant: (((assert_~arg <= 1 && !(~p2_old == ~nomsg)) && ~mode3 <= 1) && 1 <= ~mode3) && 1 <= assert_~arg - InvariantResult [Line: 307]: Loop Invariant Derived loop invariant: ((!(~p2_old == ~nomsg) && ~mode3 <= 1) && 1 <= ~mode3) || ((((((~mode3 == 256 * (~mode3 / 256) && ~mode1 == 256 * (~mode1 / 256)) && ~send2 <= 127) && ~mode2 == 256 * (~mode2 / 256)) && 0 <= ~send2) && 0 == ~nomsg + 1) && ~r1 <= 256 * (~r1 / 256)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 1 error locations. SAFE Result, 0.6s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 1 SDslu, 5 SDs, 0 SdLazy, 11 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 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-var-start-time.5.2.ufo.UNBOUNDED.pals.c_12.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_08-19-16-077.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/pals_lcr-var-start-time.5.2.ufo.UNBOUNDED.pals.c_12.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_08-19-16-077.csv Received shutdown request...