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-pdr-smtinterpol.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_3.cil.c_20.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 09:45:09,435 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 09:45:09,438 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 09:45:09,450 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 09:45:09,451 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 09:45:09,452 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 09:45:09,453 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 09:45:09,455 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 09:45:09,456 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 09:45:09,457 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 09:45:09,458 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-26 09:45:09,484 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-smtinterpol.epf [2018-09-26 09:45:09,493 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 09:45:09,493 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 09:45:09,495 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 09:45:09,495 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-09-26 09:45:09,495 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 09:45:09,496 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 09:45:09,496 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-09-26 09:45:09,496 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 09:45:09,542 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 09:45:09,555 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 09:45:09,559 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 09:45:09,560 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 09:45:09,561 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 09:45:09,562 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_3.cil.c_20.bpl [2018-09-26 09:45:09,562 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_3.cil.c_20.bpl' [2018-09-26 09:45:09,641 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 09:45:09,645 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 09:45:09,646 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 09:45:09,646 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 09:45:09,646 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 09:45:09,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:45:09" (1/1) ... [2018-09-26 09:45:09,686 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:45:09" (1/1) ... [2018-09-26 09:45:09,697 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 09:45:09,699 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 09:45:09,699 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 09:45:09,699 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 09:45:09,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:45:09" (1/1) ... [2018-09-26 09:45:09,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:45:09" (1/1) ... [2018-09-26 09:45:09,715 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:45:09" (1/1) ... [2018-09-26 09:45:09,715 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:45:09" (1/1) ... [2018-09-26 09:45:09,736 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:45:09" (1/1) ... [2018-09-26 09:45:09,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:45:09" (1/1) ... [2018-09-26 09:45:09,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:45:09" (1/1) ... [2018-09-26 09:45:09,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 09:45:09,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 09:45:09,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 09:45:09,756 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 09:45:09,757 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:45:09" (1/1) ... [2018-09-26 09:45:09,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 09:45:09,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 09:45:10,302 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 09:45:10,303 INFO L202 PluginConnector]: Adding new model s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:45:10 BoogieIcfgContainer [2018-09-26 09:45:10,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 09:45:10,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 09:45:10,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 09:45:10,309 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 09:45:10,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:45:09" (1/2) ... [2018-09-26 09:45:10,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c24ebd4 and model type s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:45:10, skipping insertion in model container [2018-09-26 09:45:10,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:45:10" (2/2) ... [2018-09-26 09:45:10,313 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_3.cil.c_20.bpl [2018-09-26 09:45:10,323 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 09:45:10,332 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 09:45:10,381 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 09:45:10,382 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 09:45:10,382 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 09:45:10,382 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 09:45:10,383 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 09:45:10,383 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 09:45:10,383 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 09:45:10,383 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 09:45:10,384 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 09:45:10,401 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-09-26 09:45:10,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-26 09:45:10,410 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:45:10,411 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:45:10,413 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:45:10,419 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:45:10,419 INFO L82 PathProgramCache]: Analyzing trace with hash -505433777, now seen corresponding path program 1 times [2018-09-26 09:45:10,426 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:45:10,987 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:45:10,987 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 09:45:10,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 09:45:10,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 09:45:11,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-26 09:45:11,004 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 4 states. [2018-09-26 09:45:11,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:45:11,156 INFO L93 Difference]: Finished difference Result 47 states and 81 transitions. [2018-09-26 09:45:11,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 09:45:11,158 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-09-26 09:45:11,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:45:11,174 INFO L225 Difference]: With dead ends: 47 [2018-09-26 09:45:11,174 INFO L226 Difference]: Without dead ends: 44 [2018-09-26 09:45:11,178 INFO L605 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 [2018-09-26 09:45:11,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-09-26 09:45:11,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-09-26 09:45:11,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-09-26 09:45:11,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 77 transitions. [2018-09-26 09:45:11,226 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 77 transitions. Word has length 15 [2018-09-26 09:45:11,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:45:11,226 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 77 transitions. [2018-09-26 09:45:11,227 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 09:45:11,227 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 77 transitions. [2018-09-26 09:45:11,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-26 09:45:11,228 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:45:11,229 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:45:11,229 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:45:11,229 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:45:11,230 INFO L82 PathProgramCache]: Analyzing trace with hash 339867494, now seen corresponding path program 1 times [2018-09-26 09:45:11,230 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:45:12,125 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:45:12,125 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-26 09:45:12,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 09:45:12,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 09:45:12,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-09-26 09:45:12,129 INFO L87 Difference]: Start difference. First operand 44 states and 77 transitions. Second operand 6 states. [2018-09-26 09:45:12,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:45:12,267 INFO L93 Difference]: Finished difference Result 60 states and 104 transitions. [2018-09-26 09:45:12,267 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 09:45:12,267 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2018-09-26 09:45:12,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:45:12,269 INFO L225 Difference]: With dead ends: 60 [2018-09-26 09:45:12,269 INFO L226 Difference]: Without dead ends: 58 [2018-09-26 09:45:12,271 INFO L605 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 [2018-09-26 09:45:12,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-09-26 09:45:12,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 44. [2018-09-26 09:45:12,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-09-26 09:45:12,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 77 transitions. [2018-09-26 09:45:12,291 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 77 transitions. Word has length 35 [2018-09-26 09:45:12,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:45:12,293 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 77 transitions. [2018-09-26 09:45:12,293 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 09:45:12,293 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 77 transitions. [2018-09-26 09:45:12,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-26 09:45:12,295 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:45:12,295 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2018-09-26 09:45:12,296 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:45:12,297 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:45:12,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1742811576, now seen corresponding path program 1 times [2018-09-26 09:45:12,297 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:45:16,949 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:45:16,950 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-26 09:45:16,951 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 09:45:16,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 09:45:16,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-09-26 09:45:16,952 INFO L87 Difference]: Start difference. First operand 44 states and 77 transitions. Second operand 6 states. [2018-09-26 09:45:17,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:45:17,199 INFO L93 Difference]: Finished difference Result 98 states and 173 transitions. [2018-09-26 09:45:17,199 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-26 09:45:17,200 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2018-09-26 09:45:17,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:45:17,202 INFO L225 Difference]: With dead ends: 98 [2018-09-26 09:45:17,202 INFO L226 Difference]: Without dead ends: 96 [2018-09-26 09:45:17,203 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14493 GetRequests, 14446 SyntacticMatches, 32 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2018-09-26 09:45:17,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-09-26 09:45:17,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 89. [2018-09-26 09:45:17,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-09-26 09:45:17,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 159 transitions. [2018-09-26 09:45:17,233 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 159 transitions. Word has length 40 [2018-09-26 09:45:17,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:45:17,233 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 159 transitions. [2018-09-26 09:45:17,233 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 09:45:17,233 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 159 transitions. [2018-09-26 09:45:17,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-26 09:45:17,236 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:45:17,236 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:45:17,237 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:45:17,237 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:45:17,237 INFO L82 PathProgramCache]: Analyzing trace with hash 1365476994, now seen corresponding path program 1 times [2018-09-26 09:45:17,237 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:45:31,199 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:45:31,200 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-26 09:45:31,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-26 09:45:31,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-26 09:45:31,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=633, Unknown=0, NotChecked=0, Total=870 [2018-09-26 09:45:31,201 INFO L87 Difference]: Start difference. First operand 89 states and 159 transitions. Second operand 7 states. [2018-09-26 09:45:31,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:45:31,442 INFO L93 Difference]: Finished difference Result 134 states and 238 transitions. [2018-09-26 09:45:31,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-26 09:45:31,442 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2018-09-26 09:45:31,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:45:31,445 INFO L225 Difference]: With dead ends: 134 [2018-09-26 09:45:31,445 INFO L226 Difference]: Without dead ends: 132 [2018-09-26 09:45:31,446 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33574 GetRequests, 33494 SyntacticMatches, 50 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1090 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=279, Invalid=713, Unknown=0, NotChecked=0, Total=992 [2018-09-26 09:45:31,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-09-26 09:45:31,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 81. [2018-09-26 09:45:31,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-26 09:45:31,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 145 transitions. [2018-09-26 09:45:31,482 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 145 transitions. Word has length 48 [2018-09-26 09:45:31,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:45:31,482 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 145 transitions. [2018-09-26 09:45:31,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-26 09:45:31,484 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 145 transitions. [2018-09-26 09:45:31,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-26 09:45:31,485 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:45:31,486 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:45:31,486 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:45:31,486 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:45:31,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1043959768, now seen corresponding path program 1 times [2018-09-26 09:45:31,487 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:45:40,083 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:45:40,084 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-26 09:45:40,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-26 09:45:40,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-26 09:45:40,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2018-09-26 09:45:40,086 INFO L87 Difference]: Start difference. First operand 81 states and 145 transitions. Second operand 7 states. [2018-09-26 09:45:40,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:45:40,297 INFO L93 Difference]: Finished difference Result 185 states and 332 transitions. [2018-09-26 09:45:40,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-26 09:45:40,297 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-09-26 09:45:40,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:45:40,299 INFO L225 Difference]: With dead ends: 185 [2018-09-26 09:45:40,300 INFO L226 Difference]: Without dead ends: 183 [2018-09-26 09:45:40,300 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30237 GetRequests, 30176 SyntacticMatches, 41 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2018-09-26 09:45:40,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-09-26 09:45:40,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 173. [2018-09-26 09:45:40,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-09-26 09:45:40,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 313 transitions. [2018-09-26 09:45:40,373 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 313 transitions. Word has length 51 [2018-09-26 09:45:40,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:45:40,374 INFO L480 AbstractCegarLoop]: Abstraction has 173 states and 313 transitions. [2018-09-26 09:45:40,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-26 09:45:40,374 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 313 transitions. [2018-09-26 09:45:40,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-09-26 09:45:40,376 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:45:40,376 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:45:40,376 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:45:40,376 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:45:40,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1888216802, now seen corresponding path program 1 times [2018-09-26 09:45:40,377 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:46:14,188 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:46:14,189 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-26 09:46:14,189 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-26 09:46:14,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-26 09:46:14,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=395, Invalid=1087, Unknown=0, NotChecked=0, Total=1482 [2018-09-26 09:46:14,191 INFO L87 Difference]: Start difference. First operand 173 states and 313 transitions. Second operand 8 states. [2018-09-26 09:46:14,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:46:14,516 INFO L93 Difference]: Finished difference Result 261 states and 470 transitions. [2018-09-26 09:46:14,516 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-26 09:46:14,516 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2018-09-26 09:46:14,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:46:14,518 INFO L225 Difference]: With dead ends: 261 [2018-09-26 09:46:14,519 INFO L226 Difference]: Without dead ends: 259 [2018-09-26 09:46:14,520 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 67672 GetRequests, 67567 SyntacticMatches, 65 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1927 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=467, Invalid=1255, Unknown=0, NotChecked=0, Total=1722 [2018-09-26 09:46:14,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2018-09-26 09:46:14,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 128. [2018-09-26 09:46:14,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-09-26 09:46:14,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 231 transitions. [2018-09-26 09:46:14,572 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 231 transitions. Word has length 59 [2018-09-26 09:46:14,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:46:14,573 INFO L480 AbstractCegarLoop]: Abstraction has 128 states and 231 transitions. [2018-09-26 09:46:14,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-26 09:46:14,573 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 231 transitions. [2018-09-26 09:46:14,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-09-26 09:46:14,579 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:46:14,579 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:46:14,580 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:46:14,580 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:46:14,580 INFO L82 PathProgramCache]: Analyzing trace with hash 1864751960, now seen corresponding path program 1 times [2018-09-26 09:46:14,580 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:46:32,586 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:46:32,586 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-26 09:46:32,587 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-26 09:46:32,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-26 09:46:32,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2018-09-26 09:46:32,588 INFO L87 Difference]: Start difference. First operand 128 states and 231 transitions. Second operand 8 states. [2018-09-26 09:46:32,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:46:32,908 INFO L93 Difference]: Finished difference Result 268 states and 484 transitions. [2018-09-26 09:46:32,909 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-26 09:46:32,909 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2018-09-26 09:46:32,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:46:32,911 INFO L225 Difference]: With dead ends: 268 [2018-09-26 09:46:32,911 INFO L226 Difference]: Without dead ends: 266 [2018-09-26 09:46:32,912 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 53211 GetRequests, 53137 SyntacticMatches, 49 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=194, Invalid=508, Unknown=0, NotChecked=0, Total=702 [2018-09-26 09:46:32,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2018-09-26 09:46:32,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 252. [2018-09-26 09:46:32,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2018-09-26 09:46:32,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 457 transitions. [2018-09-26 09:46:32,998 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 457 transitions. Word has length 61 [2018-09-26 09:46:32,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:46:32,999 INFO L480 AbstractCegarLoop]: Abstraction has 252 states and 457 transitions. [2018-09-26 09:46:32,999 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-26 09:46:32,999 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 457 transitions. [2018-09-26 09:46:33,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-09-26 09:46:33,001 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:46:33,002 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:46:33,002 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:46:33,002 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:46:33,006 INFO L82 PathProgramCache]: Analyzing trace with hash -240826162, now seen corresponding path program 1 times [2018-09-26 09:46:33,007 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:47:48,595 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:47:48,596 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-26 09:47:48,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-26 09:47:48,597 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-26 09:47:48,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=596, Invalid=1660, Unknown=0, NotChecked=0, Total=2256 [2018-09-26 09:47:48,598 INFO L87 Difference]: Start difference. First operand 252 states and 457 transitions. Second operand 9 states. [2018-09-26 09:47:49,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:47:49,042 INFO L93 Difference]: Finished difference Result 406 states and 735 transitions. [2018-09-26 09:47:49,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-26 09:47:49,042 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2018-09-26 09:47:49,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:47:49,044 INFO L225 Difference]: With dead ends: 406 [2018-09-26 09:47:49,045 INFO L226 Difference]: Without dead ends: 404 [2018-09-26 09:47:49,046 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 117074 GetRequests, 116945 SyntacticMatches, 79 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2944 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=701, Invalid=1951, Unknown=0, NotChecked=0, Total=2652 [2018-09-26 09:47:49,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2018-09-26 09:47:49,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 185. [2018-09-26 09:47:49,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-09-26 09:47:49,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 335 transitions. [2018-09-26 09:47:49,108 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 335 transitions. Word has length 69 [2018-09-26 09:47:49,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:47:49,109 INFO L480 AbstractCegarLoop]: Abstraction has 185 states and 335 transitions. [2018-09-26 09:47:49,109 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-26 09:47:49,109 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 335 transitions. [2018-09-26 09:47:49,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-09-26 09:47:49,110 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:47:49,110 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:47:49,110 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:47:49,111 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:47:49,111 INFO L82 PathProgramCache]: Analyzing trace with hash 2078757358, now seen corresponding path program 1 times [2018-09-26 09:47:49,111 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:48:23,707 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:48:23,707 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-26 09:48:23,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-26 09:48:23,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-26 09:48:23,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2018-09-26 09:48:23,709 INFO L87 Difference]: Start difference. First operand 185 states and 335 transitions. Second operand 9 states. [2018-09-26 09:48:24,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:48:24,075 INFO L93 Difference]: Finished difference Result 353 states and 640 transitions. [2018-09-26 09:48:24,076 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-26 09:48:24,076 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2018-09-26 09:48:24,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:48:24,079 INFO L225 Difference]: With dead ends: 353 [2018-09-26 09:48:24,079 INFO L226 Difference]: Without dead ends: 351 [2018-09-26 09:48:24,080 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 83536 GetRequests, 83450 SyntacticMatches, 56 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 910 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2018-09-26 09:48:24,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2018-09-26 09:48:24,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 331. [2018-09-26 09:48:24,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2018-09-26 09:48:24,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 601 transitions. [2018-09-26 09:48:24,202 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 601 transitions. Word has length 70 [2018-09-26 09:48:24,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:48:24,202 INFO L480 AbstractCegarLoop]: Abstraction has 331 states and 601 transitions. [2018-09-26 09:48:24,202 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-26 09:48:24,202 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 601 transitions. [2018-09-26 09:48:24,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-09-26 09:48:24,204 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:48:24,204 INFO L375 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] [2018-09-26 09:48:24,204 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:48:24,204 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:48:24,205 INFO L82 PathProgramCache]: Analyzing trace with hash 927770936, now seen corresponding path program 1 times [2018-09-26 09:48:24,205 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy Received shutdown request... [2018-09-26 09:49:41,805 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-26 09:49:41,809 WARN L206 ceAbstractionStarter]: Timeout [2018-09-26 09:49:41,810 INFO L202 PluginConnector]: Adding new model s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 09:49:41 BoogieIcfgContainer [2018-09-26 09:49:41,810 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 09:49:41,811 INFO L168 Benchmark]: Toolchain (without parser) took 272168.89 ms. Allocated memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -66.6 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 386.6 MB). Peak memory consumption was 320.0 MB. Max. memory is 7.1 GB. [2018-09-26 09:49:41,813 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. [2018-09-26 09:49:41,814 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.12 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. [2018-09-26 09:49:41,814 INFO L168 Benchmark]: Boogie Preprocessor took 56.88 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. [2018-09-26 09:49:41,815 INFO L168 Benchmark]: RCFGBuilder took 547.44 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-26 09:49:41,816 INFO L168 Benchmark]: TraceAbstraction took 271504.91 ms. Allocated memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -66.6 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 365.5 MB). Peak memory consumption was 298.9 MB. Max. memory is 7.1 GB. [2018-09-26 09:49:41,820 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 52.12 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 56.88 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 547.44 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 271504.91 ms. Allocated memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -66.6 MB). Free memory was 1.5 GB in the beginning and 1.1 GB in the end (delta: 365.5 MB). Peak memory consumption was 298.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 506]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 506). 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, 271.4s OverallTime, 10 OverallIterations, 7 TraceHistogramMax, 2.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 67 SDtfs, 1122 SDslu, 37 SDs, 0 SdLazy, 1006 SolverSat, 1113 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 403813 GetRequests, 403189 SyntacticMatches, 400 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8336 ImplicationChecksByTransitivity, 4.7s 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: 190.6s 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_3.cil.c_20.bpl_AutomizerBpl-pdr-smtinterpol.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_09-49-41-834.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_srvr_3.cil.c_20.bpl_AutomizerBpl-pdr-smtinterpol.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_09-49-41-834.csv Completed graceful shutdown