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-pdr-smtinterpol.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_1.BV.c.cil.c_21.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 14:52:22,335 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 14:52:22,337 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 14:52:22,350 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 14:52:22,350 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 14:52:22,352 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 14:52:22,353 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 14:52:22,355 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 14:52:22,357 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 14:52:22,357 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 14:52:22,358 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 14:52:22,359 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 14:52:22,360 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 14:52:22,361 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 14:52:22,362 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 14:52:22,363 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 14:52:22,364 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 14:52:22,366 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 14:52:22,368 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 14:52:22,370 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 14:52:22,371 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 14:52:22,373 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 14:52:22,375 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 14:52:22,376 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 14:52:22,376 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 14:52:22,377 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 14:52:22,378 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 14:52:22,379 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 14:52:22,380 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 14:52:22,381 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 14:52:22,386 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 14:52:22,386 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-25 14:52:22,389 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-smtinterpol.epf [2018-07-25 14:52:22,407 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 14:52:22,407 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 14:52:22,411 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-25 14:52:22,412 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-25 14:52:22,412 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 14:52:22,412 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 14:52:22,412 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 14:52:22,412 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 14:52:22,489 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 14:52:22,514 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 14:52:22,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 14:52:22,522 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 14:52:22,523 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 14:52:22,523 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_1.BV.c.cil.c_21.bpl [2018-07-25 14:52:22,524 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_1.BV.c.cil.c_21.bpl' [2018-07-25 14:52:22,637 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 14:52:22,639 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 14:52:22,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 14:52:22,641 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 14:52:22,641 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 14:52:22,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:22" (1/1) ... [2018-07-25 14:52:22,684 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:22" (1/1) ... [2018-07-25 14:52:22,700 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 14:52:22,701 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 14:52:22,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 14:52:22,702 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 14:52:22,713 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:22" (1/1) ... [2018-07-25 14:52:22,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:22" (1/1) ... [2018-07-25 14:52:22,716 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:22" (1/1) ... [2018-07-25 14:52:22,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:22" (1/1) ... [2018-07-25 14:52:22,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:22" (1/1) ... [2018-07-25 14:52:22,729 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:22" (1/1) ... [2018-07-25 14:52:22,734 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:22" (1/1) ... [2018-07-25 14:52:22,744 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 14:52:22,745 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 14:52:22,745 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 14:52:22,745 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 14:52:22,746 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:22" (1/1) ... [2018-07-25 14:52:22,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 14:52:22,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 14:52:23,253 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 14:52:23,256 INFO L202 PluginConnector]: Adding new model s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:52:23 BoogieIcfgContainer [2018-07-25 14:52:23,256 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 14:52:23,258 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 14:52:23,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 14:52:23,262 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 14:52:23,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:22" (1/2) ... [2018-07-25 14:52:23,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ec1422c and model type s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 02:52:23, skipping insertion in model container [2018-07-25 14:52:23,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:52:23" (2/2) ... [2018-07-25 14:52:23,267 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_1.BV.c.cil.c_21.bpl [2018-07-25 14:52:23,278 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 14:52:23,289 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 14:52:23,339 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 14:52:23,340 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 14:52:23,341 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 14:52:23,341 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 14:52:23,341 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 14:52:23,341 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 14:52:23,342 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 14:52:23,342 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 14:52:23,342 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 14:52:23,360 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-07-25 14:52:23,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-07-25 14:52:23,373 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:52:23,374 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:52:23,377 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:52:23,383 INFO L82 PathProgramCache]: Analyzing trace with hash -505433777, now seen corresponding path program 1 times [2018-07-25 14:52:23,392 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:52:23,961 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:52:23,962 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 14:52:23,970 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 14:52:23,977 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 14:52:23,978 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-25 14:52:23,982 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 4 states. [2018-07-25 14:52:24,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:52:24,156 INFO L93 Difference]: Finished difference Result 47 states and 81 transitions. [2018-07-25 14:52:24,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 14:52:24,158 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-07-25 14:52:24,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:52:24,183 INFO L225 Difference]: With dead ends: 47 [2018-07-25 14:52:24,189 INFO L226 Difference]: Without dead ends: 44 [2018-07-25 14:52:24,196 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 854 GetRequests, 839 SyntacticMatches, 11 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-25 14:52:24,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-07-25 14:52:24,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-07-25 14:52:24,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-07-25 14:52:24,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 77 transitions. [2018-07-25 14:52:24,268 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 77 transitions. Word has length 15 [2018-07-25 14:52:24,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:52:24,268 INFO L472 AbstractCegarLoop]: Abstraction has 44 states and 77 transitions. [2018-07-25 14:52:24,269 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 14:52:24,269 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 77 transitions. [2018-07-25 14:52:24,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-07-25 14:52:24,275 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:52:24,275 INFO L354 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:52:24,276 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:52:24,276 INFO L82 PathProgramCache]: Analyzing trace with hash 540887753, now seen corresponding path program 1 times [2018-07-25 14:52:24,279 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:52:25,195 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:52:25,195 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 14:52:25,197 INFO L451 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-25 14:52:25,197 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-25 14:52:25,198 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-07-25 14:52:25,201 INFO L87 Difference]: Start difference. First operand 44 states and 77 transitions. Second operand 6 states. [2018-07-25 14:52:25,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:52:25,370 INFO L93 Difference]: Finished difference Result 60 states and 104 transitions. [2018-07-25 14:52:25,373 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-25 14:52:25,373 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2018-07-25 14:52:25,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:52:25,375 INFO L225 Difference]: With dead ends: 60 [2018-07-25 14:52:25,377 INFO L226 Difference]: Without dead ends: 58 [2018-07-25 14:52:25,379 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 3162 GetRequests, 3135 SyntacticMatches, 17 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-07-25 14:52:25,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-07-25 14:52:25,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 44. [2018-07-25 14:52:25,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-07-25 14:52:25,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 77 transitions. [2018-07-25 14:52:25,398 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 77 transitions. Word has length 35 [2018-07-25 14:52:25,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:52:25,400 INFO L472 AbstractCegarLoop]: Abstraction has 44 states and 77 transitions. [2018-07-25 14:52:25,400 INFO L473 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-25 14:52:25,400 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 77 transitions. [2018-07-25 14:52:25,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-07-25 14:52:25,403 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:52:25,404 INFO L354 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2018-07-25 14:52:25,404 INFO L415 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:52:25,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1868096046, now seen corresponding path program 1 times [2018-07-25 14:52:25,405 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:52:30,934 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:52:30,935 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 14:52:30,935 INFO L451 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-25 14:52:30,936 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-25 14:52:30,936 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-07-25 14:52:30,937 INFO L87 Difference]: Start difference. First operand 44 states and 77 transitions. Second operand 6 states. [2018-07-25 14:52:31,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:52:31,250 INFO L93 Difference]: Finished difference Result 98 states and 173 transitions. [2018-07-25 14:52:31,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-25 14:52:31,251 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2018-07-25 14:52:31,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:52:31,253 INFO L225 Difference]: With dead ends: 98 [2018-07-25 14:52:31,254 INFO L226 Difference]: Without dead ends: 96 [2018-07-25 14:52:31,256 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14493 GetRequests, 14446 SyntacticMatches, 32 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2018-07-25 14:52:31,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-07-25 14:52:31,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 89. [2018-07-25 14:52:31,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-07-25 14:52:31,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 159 transitions. [2018-07-25 14:52:31,302 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 159 transitions. Word has length 40 [2018-07-25 14:52:31,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:52:31,303 INFO L472 AbstractCegarLoop]: Abstraction has 89 states and 159 transitions. [2018-07-25 14:52:31,303 INFO L473 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-25 14:52:31,303 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 159 transitions. [2018-07-25 14:52:31,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-07-25 14:52:31,305 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:52:31,306 INFO L354 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:52:31,306 INFO L415 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:52:31,306 INFO L82 PathProgramCache]: Analyzing trace with hash 2049536668, now seen corresponding path program 1 times [2018-07-25 14:52:31,307 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:52:48,572 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:52:48,573 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 14:52:48,573 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 14:52:48,574 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 14:52:48,574 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=633, Unknown=0, NotChecked=0, Total=870 [2018-07-25 14:52:48,575 INFO L87 Difference]: Start difference. First operand 89 states and 159 transitions. Second operand 7 states. [2018-07-25 14:52:48,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:52:48,835 INFO L93 Difference]: Finished difference Result 134 states and 238 transitions. [2018-07-25 14:52:48,835 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-25 14:52:48,836 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2018-07-25 14:52:48,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:52:48,838 INFO L225 Difference]: With dead ends: 134 [2018-07-25 14:52:48,838 INFO L226 Difference]: Without dead ends: 132 [2018-07-25 14:52:48,839 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 33574 GetRequests, 33494 SyntacticMatches, 50 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1090 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=279, Invalid=713, Unknown=0, NotChecked=0, Total=992 [2018-07-25 14:52:48,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-07-25 14:52:48,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 81. [2018-07-25 14:52:48,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-07-25 14:52:48,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 145 transitions. [2018-07-25 14:52:48,865 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 145 transitions. Word has length 48 [2018-07-25 14:52:48,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:52:48,865 INFO L472 AbstractCegarLoop]: Abstraction has 81 states and 145 transitions. [2018-07-25 14:52:48,865 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 14:52:48,866 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 145 transitions. [2018-07-25 14:52:48,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-07-25 14:52:48,867 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:52:48,868 INFO L354 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:52:48,868 INFO L415 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:52:48,868 INFO L82 PathProgramCache]: Analyzing trace with hash -359900094, now seen corresponding path program 1 times [2018-07-25 14:52:48,868 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:52:59,186 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:52:59,186 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 14:52:59,187 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 14:52:59,187 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 14:52:59,188 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2018-07-25 14:52:59,188 INFO L87 Difference]: Start difference. First operand 81 states and 145 transitions. Second operand 7 states. [2018-07-25 14:52:59,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:52:59,459 INFO L93 Difference]: Finished difference Result 185 states and 332 transitions. [2018-07-25 14:52:59,460 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-25 14:52:59,460 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-07-25 14:52:59,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:52:59,462 INFO L225 Difference]: With dead ends: 185 [2018-07-25 14:52:59,462 INFO L226 Difference]: Without dead ends: 183 [2018-07-25 14:52:59,463 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 30237 GetRequests, 30176 SyntacticMatches, 41 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2018-07-25 14:52:59,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-07-25 14:52:59,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 173. [2018-07-25 14:52:59,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-07-25 14:52:59,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 313 transitions. [2018-07-25 14:52:59,534 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 313 transitions. Word has length 51 [2018-07-25 14:52:59,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:52:59,535 INFO L472 AbstractCegarLoop]: Abstraction has 173 states and 313 transitions. [2018-07-25 14:52:59,535 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 14:52:59,535 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 313 transitions. [2018-07-25 14:52:59,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-07-25 14:52:59,542 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:52:59,542 INFO L354 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:52:59,542 INFO L415 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:52:59,543 INFO L82 PathProgramCache]: Analyzing trace with hash -1204157128, now seen corresponding path program 1 times [2018-07-25 14:52:59,543 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:53:43,184 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:53:43,185 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-25 14:53:43,186 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 14:53:43,186 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 14:53:43,187 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=395, Invalid=1087, Unknown=0, NotChecked=0, Total=1482 [2018-07-25 14:53:43,187 INFO L87 Difference]: Start difference. First operand 173 states and 313 transitions. Second operand 8 states. [2018-07-25 14:53:43,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:53:43,642 INFO L93 Difference]: Finished difference Result 261 states and 470 transitions. [2018-07-25 14:53:43,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-25 14:53:43,643 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2018-07-25 14:53:43,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:53:43,645 INFO L225 Difference]: With dead ends: 261 [2018-07-25 14:53:43,645 INFO L226 Difference]: Without dead ends: 259 [2018-07-25 14:53:43,647 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 67672 GetRequests, 67567 SyntacticMatches, 65 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1927 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=467, Invalid=1255, Unknown=0, NotChecked=0, Total=1722 [2018-07-25 14:53:43,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2018-07-25 14:53:43,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 128. [2018-07-25 14:53:43,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-07-25 14:53:43,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 231 transitions. [2018-07-25 14:53:43,690 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 231 transitions. Word has length 59 [2018-07-25 14:53:43,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:53:43,691 INFO L472 AbstractCegarLoop]: Abstraction has 128 states and 231 transitions. [2018-07-25 14:53:43,691 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 14:53:43,691 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 231 transitions. [2018-07-25 14:53:43,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-07-25 14:53:43,693 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:53:43,693 INFO L354 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:53:43,694 INFO L415 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:53:43,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1746155662, now seen corresponding path program 1 times [2018-07-25 14:53:43,694 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:54:07,526 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:54:07,527 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-25 14:54:07,527 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 14:54:07,528 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 14:54:07,528 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2018-07-25 14:54:07,529 INFO L87 Difference]: Start difference. First operand 128 states and 231 transitions. Second operand 8 states. [2018-07-25 14:54:07,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:54:07,918 INFO L93 Difference]: Finished difference Result 268 states and 484 transitions. [2018-07-25 14:54:07,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-25 14:54:07,918 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2018-07-25 14:54:07,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:54:07,921 INFO L225 Difference]: With dead ends: 268 [2018-07-25 14:54:07,922 INFO L226 Difference]: Without dead ends: 266 [2018-07-25 14:54:07,923 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 53211 GetRequests, 53137 SyntacticMatches, 49 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=194, Invalid=508, Unknown=0, NotChecked=0, Total=702 [2018-07-25 14:54:07,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2018-07-25 14:54:08,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 252. [2018-07-25 14:54:08,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2018-07-25 14:54:08,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 457 transitions. [2018-07-25 14:54:08,054 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 457 transitions. Word has length 61 [2018-07-25 14:54:08,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:54:08,055 INFO L472 AbstractCegarLoop]: Abstraction has 252 states and 457 transitions. [2018-07-25 14:54:08,055 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 14:54:08,055 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 457 transitions. [2018-07-25 14:54:08,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-07-25 14:54:08,060 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:54:08,060 INFO L354 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:54:08,061 INFO L415 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:54:08,061 INFO L82 PathProgramCache]: Analyzing trace with hash 443233512, now seen corresponding path program 1 times [2018-07-25 14:54:08,061 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:55:54,832 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:55:54,833 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-07-25 14:55:54,833 INFO L451 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-25 14:55:54,834 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-25 14:55:54,834 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=596, Invalid=1660, Unknown=0, NotChecked=0, Total=2256 [2018-07-25 14:55:54,835 INFO L87 Difference]: Start difference. First operand 252 states and 457 transitions. Second operand 9 states. [2018-07-25 14:55:55,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:55:55,393 INFO L93 Difference]: Finished difference Result 406 states and 735 transitions. [2018-07-25 14:55:55,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-25 14:55:55,393 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2018-07-25 14:55:55,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:55:55,396 INFO L225 Difference]: With dead ends: 406 [2018-07-25 14:55:55,396 INFO L226 Difference]: Without dead ends: 404 [2018-07-25 14:55:55,398 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 117074 GetRequests, 116945 SyntacticMatches, 79 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2944 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=701, Invalid=1951, Unknown=0, NotChecked=0, Total=2652 [2018-07-25 14:55:55,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2018-07-25 14:55:55,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 185. [2018-07-25 14:55:55,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-07-25 14:55:55,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 335 transitions. [2018-07-25 14:55:55,472 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 335 transitions. Word has length 69 [2018-07-25 14:55:55,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:55:55,472 INFO L472 AbstractCegarLoop]: Abstraction has 185 states and 335 transitions. [2018-07-25 14:55:55,473 INFO L473 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-25 14:55:55,473 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 335 transitions. [2018-07-25 14:55:55,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-07-25 14:55:55,474 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:55:55,474 INFO L354 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:55:55,474 INFO L415 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:55:55,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1532150264, now seen corresponding path program 1 times [2018-07-25 14:55:55,475 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:56:45,013 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:56:45,014 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-07-25 14:56:45,014 INFO L451 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-25 14:56:45,014 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-25 14:56:45,015 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2018-07-25 14:56:45,015 INFO L87 Difference]: Start difference. First operand 185 states and 335 transitions. Second operand 9 states. [2018-07-25 14:56:45,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:56:45,497 INFO L93 Difference]: Finished difference Result 353 states and 640 transitions. [2018-07-25 14:56:45,497 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-25 14:56:45,497 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2018-07-25 14:56:45,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:56:45,502 INFO L225 Difference]: With dead ends: 353 [2018-07-25 14:56:45,503 INFO L226 Difference]: Without dead ends: 351 [2018-07-25 14:56:45,504 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 83536 GetRequests, 83450 SyntacticMatches, 56 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 910 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2018-07-25 14:56:45,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2018-07-25 14:56:45,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 331. [2018-07-25 14:56:45,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2018-07-25 14:56:45,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 601 transitions. [2018-07-25 14:56:45,622 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 601 transitions. Word has length 70 [2018-07-25 14:56:45,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:56:45,623 INFO L472 AbstractCegarLoop]: Abstraction has 331 states and 601 transitions. [2018-07-25 14:56:45,623 INFO L473 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-25 14:56:45,623 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 601 transitions. [2018-07-25 14:56:45,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-07-25 14:56:45,625 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:56:45,625 INFO L354 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:56:45,626 INFO L415 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:56:45,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1611830610, now seen corresponding path program 1 times [2018-07-25 14:56:45,626 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy Received shutdown request... [2018-07-25 14:56:50,382 WARN L541 AbstractCegarLoop]: Verification canceled [2018-07-25 14:56:50,387 WARN L202 ceAbstractionStarter]: Timeout [2018-07-25 14:56:50,387 INFO L202 PluginConnector]: Adding new model s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 02:56:50 BoogieIcfgContainer [2018-07-25 14:56:50,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 14:56:50,388 INFO L168 Benchmark]: Toolchain (without parser) took 267750.58 ms. Allocated memory was 1.5 GB in the beginning and 2.0 GB in the end (delta: 465.6 MB). Free memory was 1.5 GB in the beginning and 1.9 GB in the end (delta: -473.2 MB). Peak memory consumption was 1.0 GB. Max. memory is 7.1 GB. [2018-07-25 14:56:50,391 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.19 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 14:56:50,391 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 14:56:50,392 INFO L168 Benchmark]: Boogie Preprocessor took 43.07 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 14:56:50,392 INFO L168 Benchmark]: RCFGBuilder took 512.24 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-25 14:56:50,393 INFO L168 Benchmark]: TraceAbstraction took 267129.47 ms. Allocated memory was 1.5 GB in the beginning and 2.0 GB in the end (delta: 465.6 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -494.3 MB). Peak memory consumption was 987.9 MB. Max. memory is 7.1 GB. [2018-07-25 14:56:50,397 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 0.19 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 60.25 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.07 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 512.24 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: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 267129.47 ms. Allocated memory was 1.5 GB in the beginning and 2.0 GB in the end (delta: 465.6 MB). Free memory was 1.4 GB in the beginning and 1.9 GB in the end (delta: -494.3 MB). Peak memory consumption was 987.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 479]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 479). Cancelled while BasicCegarLoop was analyzing trace of length 79 with TraceHistMax 7, while Pdr was Timeout or canceled while running Pdr. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 1 error locations. TIMEOUT Result, 267.0s OverallTime, 10 OverallIterations, 7 TraceHistogramMax, 3.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 67 SDtfs, 1122 SDslu, 37 SDs, 0 SdLazy, 1006 SolverSat, 1113 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 403813 GetRequests, 403189 SyntacticMatches, 400 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8336 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=331occurred in iteration=9, 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: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 466 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 258.3s PdrRuntime, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_srvr_1.BV.c.cil.c_21.bpl_AutomizerBpl-pdr-smtinterpol.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_14-56-50-411.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_srvr_1.BV.c.cil.c_21.bpl_AutomizerBpl-pdr-smtinterpol.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_14-56-50-411.csv Completed graceful shutdown