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_1.cil.c_23.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 09:44:55,338 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 09:44:55,340 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 09:44:55,353 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 09:44:55,353 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 09:44:55,354 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 09:44:55,356 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 09:44:55,357 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 09:44:55,359 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 09:44:55,360 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 09:44:55,361 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-26 09:44:55,386 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 09:44:55,398 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 09:44:55,398 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 09:44:55,400 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 09:44:55,400 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-09-26 09:44:55,400 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 09:44:55,400 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 09:44:55,401 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-09-26 09:44:55,401 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 09:44:55,444 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 09:44:55,460 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 09:44:55,467 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 09:44:55,469 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 09:44:55,469 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 09:44:55,470 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_1.cil.c_23.bpl [2018-09-26 09:44:55,470 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_1.cil.c_23.bpl' [2018-09-26 09:44:55,594 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 09:44:55,597 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 09:44:55,598 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 09:44:55,598 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 09:44:55,599 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 09:44:55,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:44:55" (1/1) ... [2018-09-26 09:44:55,646 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:44:55" (1/1) ... [2018-09-26 09:44:55,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 09:44:55,655 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 09:44:55,655 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 09:44:55,655 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 09:44:55,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:44:55" (1/1) ... [2018-09-26 09:44:55,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:44:55" (1/1) ... [2018-09-26 09:44:55,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:44:55" (1/1) ... [2018-09-26 09:44:55,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:44:55" (1/1) ... [2018-09-26 09:44:55,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:44:55" (1/1) ... [2018-09-26 09:44:55,683 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:44:55" (1/1) ... [2018-09-26 09:44:55,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:44:55" (1/1) ... [2018-09-26 09:44:55,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 09:44:55,690 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 09:44:55,690 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 09:44:55,690 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 09:44:55,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:44:55" (1/1) ... [2018-09-26 09:44:55,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 09:44:55,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 09:44:56,205 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 09:44:56,206 INFO L202 PluginConnector]: Adding new model s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:44:56 BoogieIcfgContainer [2018-09-26 09:44:56,206 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 09:44:56,209 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 09:44:56,209 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 09:44:56,213 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 09:44:56,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:44:55" (1/2) ... [2018-09-26 09:44:56,215 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37c9b7cc and model type s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:44:56, skipping insertion in model container [2018-09-26 09:44:56,215 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:44:56" (2/2) ... [2018-09-26 09:44:56,218 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_1.cil.c_23.bpl [2018-09-26 09:44:56,227 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 09:44:56,240 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 09:44:56,282 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 09:44:56,283 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 09:44:56,283 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 09:44:56,283 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 09:44:56,284 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 09:44:56,284 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 09:44:56,284 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 09:44:56,284 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 09:44:56,284 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 09:44:56,300 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-09-26 09:44:56,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-09-26 09:44:56,309 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:44:56,310 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:44:56,311 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:44:56,317 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:44:56,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1511424245, now seen corresponding path program 1 times [2018-09-26 09:44:56,322 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:44:56,885 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:44:56,888 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 09:44:56,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 09:44:56,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 09:44:56,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-26 09:44:56,904 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 4 states. [2018-09-26 09:44:57,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:44:57,087 INFO L93 Difference]: Finished difference Result 51 states and 87 transitions. [2018-09-26 09:44:57,087 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 09:44:57,089 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-09-26 09:44:57,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:44:57,109 INFO L225 Difference]: With dead ends: 51 [2018-09-26 09:44:57,110 INFO L226 Difference]: Without dead ends: 48 [2018-09-26 09:44:57,115 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 1010 GetRequests, 994 SyntacticMatches, 12 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-26 09:44:57,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-09-26 09:44:57,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-09-26 09:44:57,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-09-26 09:44:57,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 83 transitions. [2018-09-26 09:44:57,167 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 83 transitions. Word has length 16 [2018-09-26 09:44:57,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:44:57,167 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 83 transitions. [2018-09-26 09:44:57,168 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 09:44:57,168 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2018-09-26 09:44:57,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-09-26 09:44:57,170 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:44:57,170 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:44:57,170 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:44:57,171 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:44:57,171 INFO L82 PathProgramCache]: Analyzing trace with hash -478818365, now seen corresponding path program 1 times [2018-09-26 09:44:57,171 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:44:58,043 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:44:58,044 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-26 09:44:58,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 09:44:58,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 09:44:58,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-09-26 09:44:58,046 INFO L87 Difference]: Start difference. First operand 48 states and 83 transitions. Second operand 6 states. [2018-09-26 09:44:58,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:44:58,187 INFO L93 Difference]: Finished difference Result 65 states and 112 transitions. [2018-09-26 09:44:58,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 09:44:58,187 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2018-09-26 09:44:58,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:44:58,189 INFO L225 Difference]: With dead ends: 65 [2018-09-26 09:44:58,191 INFO L226 Difference]: Without dead ends: 63 [2018-09-26 09:44:58,193 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3516 GetRequests, 3488 SyntacticMatches, 18 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 09:44:58,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-09-26 09:44:58,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 48. [2018-09-26 09:44:58,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-09-26 09:44:58,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 83 transitions. [2018-09-26 09:44:58,208 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 83 transitions. Word has length 39 [2018-09-26 09:44:58,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:44:58,209 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 83 transitions. [2018-09-26 09:44:58,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 09:44:58,209 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2018-09-26 09:44:58,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-09-26 09:44:58,211 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:44:58,211 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:44:58,212 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:44:58,212 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:44:58,212 INFO L82 PathProgramCache]: Analyzing trace with hash -145316145, now seen corresponding path program 1 times [2018-09-26 09:44:58,212 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:44:59,538 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:44:59,538 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-26 09:44:59,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-09-26 09:44:59,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-09-26 09:44:59,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-09-26 09:44:59,540 INFO L87 Difference]: Start difference. First operand 48 states and 83 transitions. Second operand 5 states. [2018-09-26 09:44:59,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:44:59,633 INFO L93 Difference]: Finished difference Result 80 states and 139 transitions. [2018-09-26 09:44:59,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 09:44:59,633 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2018-09-26 09:44:59,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:44:59,635 INFO L225 Difference]: With dead ends: 80 [2018-09-26 09:44:59,636 INFO L226 Difference]: Without dead ends: 78 [2018-09-26 09:44:59,636 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5856 GetRequests, 5823 SyntacticMatches, 23 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-09-26 09:44:59,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-09-26 09:44:59,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 69. [2018-09-26 09:44:59,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-09-26 09:44:59,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 121 transitions. [2018-09-26 09:44:59,660 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 121 transitions. Word has length 44 [2018-09-26 09:44:59,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:44:59,661 INFO L480 AbstractCegarLoop]: Abstraction has 69 states and 121 transitions. [2018-09-26 09:44:59,661 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-09-26 09:44:59,661 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 121 transitions. [2018-09-26 09:44:59,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-09-26 09:44:59,663 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:44:59,664 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:44:59,664 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:44:59,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:44:59,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1051119547, now seen corresponding path program 1 times [2018-09-26 09:44:59,665 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:45:05,194 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:45:05,195 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-26 09:45:05,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 09:45:05,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 09:45:05,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2018-09-26 09:45:05,197 INFO L87 Difference]: Start difference. First operand 69 states and 121 transitions. Second operand 6 states. [2018-09-26 09:45:05,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:45:05,360 INFO L93 Difference]: Finished difference Result 101 states and 177 transitions. [2018-09-26 09:45:05,361 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 09:45:05,361 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2018-09-26 09:45:05,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:45:05,364 INFO L225 Difference]: With dead ends: 101 [2018-09-26 09:45:05,365 INFO L226 Difference]: Without dead ends: 99 [2018-09-26 09:45:05,365 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14317 GetRequests, 14262 SyntacticMatches, 36 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2018-09-26 09:45:05,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-09-26 09:45:05,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 61. [2018-09-26 09:45:05,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-09-26 09:45:05,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 107 transitions. [2018-09-26 09:45:05,390 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 107 transitions. Word has length 52 [2018-09-26 09:45:05,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:45:05,392 INFO L480 AbstractCegarLoop]: Abstraction has 61 states and 107 transitions. [2018-09-26 09:45:05,392 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 09:45:05,393 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 107 transitions. [2018-09-26 09:45:05,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-09-26 09:45:05,395 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:45:05,395 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:45:05,395 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:45:05,398 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:45:05,398 INFO L82 PathProgramCache]: Analyzing trace with hash 1556916008, now seen corresponding path program 1 times [2018-09-26 09:45:05,398 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:45:09,918 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:45:09,919 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-26 09:45:09,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 09:45:09,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 09:45:09,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2018-09-26 09:45:09,920 INFO L87 Difference]: Start difference. First operand 61 states and 107 transitions. Second operand 6 states. [2018-09-26 09:45:10,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:45:10,061 INFO L93 Difference]: Finished difference Result 119 states and 210 transitions. [2018-09-26 09:45:10,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-09-26 09:45:10,061 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2018-09-26 09:45:10,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:45:10,063 INFO L225 Difference]: With dead ends: 119 [2018-09-26 09:45:10,064 INFO L226 Difference]: Without dead ends: 117 [2018-09-26 09:45:10,064 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 15982 GetRequests, 15935 SyntacticMatches, 33 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2018-09-26 09:45:10,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-09-26 09:45:10,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 107. [2018-09-26 09:45:10,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-09-26 09:45:10,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 191 transitions. [2018-09-26 09:45:10,118 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 191 transitions. Word has length 56 [2018-09-26 09:45:10,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:45:10,118 INFO L480 AbstractCegarLoop]: Abstraction has 107 states and 191 transitions. [2018-09-26 09:45:10,118 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 09:45:10,119 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 191 transitions. [2018-09-26 09:45:10,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-09-26 09:45:10,120 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:45:10,120 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:45:10,120 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:45:10,121 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:45:10,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1118744478, now seen corresponding path program 1 times [2018-09-26 09:45:10,121 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:45:25,691 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:45:25,692 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-26 09:45:25,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-26 09:45:25,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-26 09:45:25,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=624, Unknown=0, NotChecked=0, Total=870 [2018-09-26 09:45:25,696 INFO L87 Difference]: Start difference. First operand 107 states and 191 transitions. Second operand 7 states. [2018-09-26 09:45:25,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:45:25,865 INFO L93 Difference]: Finished difference Result 155 states and 275 transitions. [2018-09-26 09:45:25,866 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-26 09:45:25,866 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2018-09-26 09:45:25,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:45:25,867 INFO L225 Difference]: With dead ends: 155 [2018-09-26 09:45:25,868 INFO L226 Difference]: Without dead ends: 153 [2018-09-26 09:45:25,869 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 36468 GetRequests, 36389 SyntacticMatches, 51 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1005 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=246, Invalid=624, Unknown=0, NotChecked=0, Total=870 [2018-09-26 09:45:25,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-09-26 09:45:25,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 86. [2018-09-26 09:45:25,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-09-26 09:45:25,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 153 transitions. [2018-09-26 09:45:25,906 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 153 transitions. Word has length 64 [2018-09-26 09:45:25,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:45:25,907 INFO L480 AbstractCegarLoop]: Abstraction has 86 states and 153 transitions. [2018-09-26 09:45:25,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-26 09:45:25,908 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 153 transitions. [2018-09-26 09:45:25,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-09-26 09:45:25,909 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:45:25,909 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:45:25,911 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:45:25,911 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:45:25,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1764571200, now seen corresponding path program 1 times [2018-09-26 09:45:25,911 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:45:36,183 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:45:36,183 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-26 09:45:36,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-26 09:45:36,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-26 09:45:36,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2018-09-26 09:45:36,184 INFO L87 Difference]: Start difference. First operand 86 states and 153 transitions. Second operand 7 states. [2018-09-26 09:45:36,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:45:36,327 INFO L93 Difference]: Finished difference Result 156 states and 278 transitions. [2018-09-26 09:45:36,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-26 09:45:36,328 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 67 [2018-09-26 09:45:36,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:45:36,329 INFO L225 Difference]: With dead ends: 156 [2018-09-26 09:45:36,329 INFO L226 Difference]: Without dead ends: 154 [2018-09-26 09:45:36,330 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 32978 GetRequests, 32918 SyntacticMatches, 42 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2018-09-26 09:45:36,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-09-26 09:45:36,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 143. [2018-09-26 09:45:36,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-09-26 09:45:36,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 257 transitions. [2018-09-26 09:45:36,380 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 257 transitions. Word has length 67 [2018-09-26 09:45:36,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:45:36,382 INFO L480 AbstractCegarLoop]: Abstraction has 143 states and 257 transitions. [2018-09-26 09:45:36,383 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-26 09:45:36,383 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 257 transitions. [2018-09-26 09:45:36,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-09-26 09:45:36,386 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:45:36,386 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:45:36,386 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:45:36,387 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:45:36,387 INFO L82 PathProgramCache]: Analyzing trace with hash 2065197578, now seen corresponding path program 1 times [2018-09-26 09:45:36,387 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:46:19,254 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:46:19,255 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-26 09:46:19,255 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-26 09:46:19,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-26 09:46:19,256 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=413, Invalid=1069, Unknown=0, NotChecked=0, Total=1482 [2018-09-26 09:46:19,257 INFO L87 Difference]: Start difference. First operand 143 states and 257 transitions. Second operand 8 states. [2018-09-26 09:46:19,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:46:19,458 INFO L93 Difference]: Finished difference Result 219 states and 392 transitions. [2018-09-26 09:46:19,458 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-26 09:46:19,458 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 75 [2018-09-26 09:46:19,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:46:19,460 INFO L225 Difference]: With dead ends: 219 [2018-09-26 09:46:19,460 INFO L226 Difference]: Without dead ends: 217 [2018-09-26 09:46:19,461 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 72947 GetRequests, 72843 SyntacticMatches, 67 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1794 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=413, Invalid=1069, Unknown=0, NotChecked=0, Total=1482 [2018-09-26 09:46:19,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2018-09-26 09:46:19,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 110. [2018-09-26 09:46:19,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-09-26 09:46:19,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 197 transitions. [2018-09-26 09:46:19,492 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 197 transitions. Word has length 75 [2018-09-26 09:46:19,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:46:19,492 INFO L480 AbstractCegarLoop]: Abstraction has 110 states and 197 transitions. [2018-09-26 09:46:19,493 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-26 09:46:19,493 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 197 transitions. [2018-09-26 09:46:19,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-09-26 09:46:19,494 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:46:19,494 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:46:19,494 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:46:19,494 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:46:19,495 INFO L82 PathProgramCache]: Analyzing trace with hash -1870365168, now seen corresponding path program 1 times [2018-09-26 09:46:19,495 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:46:42,433 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:46:42,433 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-26 09:46:42,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-26 09:46:42,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-26 09:46:42,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2018-09-26 09:46:42,435 INFO L87 Difference]: Start difference. First operand 110 states and 197 transitions. Second operand 8 states. [2018-09-26 09:46:42,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:46:42,595 INFO L93 Difference]: Finished difference Result 204 states and 366 transitions. [2018-09-26 09:46:42,596 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-09-26 09:46:42,596 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 77 [2018-09-26 09:46:42,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:46:42,598 INFO L225 Difference]: With dead ends: 204 [2018-09-26 09:46:42,598 INFO L226 Difference]: Without dead ends: 202 [2018-09-26 09:46:42,599 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 57596 GetRequests, 57524 SyntacticMatches, 50 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2018-09-26 09:46:42,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2018-09-26 09:46:42,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 189. [2018-09-26 09:46:42,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2018-09-26 09:46:42,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 341 transitions. [2018-09-26 09:46:42,667 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 341 transitions. Word has length 77 [2018-09-26 09:46:42,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:46:42,667 INFO L480 AbstractCegarLoop]: Abstraction has 189 states and 341 transitions. [2018-09-26 09:46:42,667 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-26 09:46:42,667 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 341 transitions. [2018-09-26 09:46:42,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-09-26 09:46:42,668 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:46:42,668 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:46:42,669 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:46:42,669 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:46:42,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1151632550, now seen corresponding path program 1 times [2018-09-26 09:46:42,669 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:48:21,205 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:48:21,206 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-26 09:48:21,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-26 09:48:21,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-26 09:48:21,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=623, Invalid=1633, Unknown=0, NotChecked=0, Total=2256 [2018-09-26 09:48:21,207 INFO L87 Difference]: Start difference. First operand 189 states and 341 transitions. Second operand 9 states. [2018-09-26 09:48:21,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:48:21,455 INFO L93 Difference]: Finished difference Result 305 states and 549 transitions. [2018-09-26 09:48:21,456 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-26 09:48:21,456 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2018-09-26 09:48:21,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:48:21,458 INFO L225 Difference]: With dead ends: 305 [2018-09-26 09:48:21,458 INFO L226 Difference]: Without dead ends: 303 [2018-09-26 09:48:21,460 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 125506 GetRequests, 125379 SyntacticMatches, 81 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2762 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=623, Invalid=1633, Unknown=0, NotChecked=0, Total=2256 [2018-09-26 09:48:21,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2018-09-26 09:48:21,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 145. [2018-09-26 09:48:21,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-09-26 09:48:21,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 261 transitions. [2018-09-26 09:48:21,511 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 261 transitions. Word has length 85 [2018-09-26 09:48:21,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:48:21,511 INFO L480 AbstractCegarLoop]: Abstraction has 145 states and 261 transitions. [2018-09-26 09:48:21,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-26 09:48:21,511 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 261 transitions. [2018-09-26 09:48:21,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-09-26 09:48:21,512 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:48:21,512 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:48:21,512 INFO L423 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:48:21,513 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:48:21,513 INFO L82 PathProgramCache]: Analyzing trace with hash 1384025266, now seen corresponding path program 1 times [2018-09-26 09:48:21,513 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:49:06,388 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:49:06,388 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-09-26 09:49:06,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-26 09:49:06,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-26 09:49:06,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=537, Unknown=0, NotChecked=0, Total=756 [2018-09-26 09:49:06,390 INFO L87 Difference]: Start difference. First operand 145 states and 261 transitions. Second operand 9 states. [2018-09-26 09:49:06,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:49:06,663 INFO L93 Difference]: Finished difference Result 253 states and 456 transitions. [2018-09-26 09:49:06,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-26 09:49:06,664 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 86 [2018-09-26 09:49:06,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:49:06,665 INFO L225 Difference]: With dead ends: 253 [2018-09-26 09:49:06,666 INFO L226 Difference]: Without dead ends: 251 [2018-09-26 09:49:06,666 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 89901 GetRequests, 89818 SyntacticMatches, 57 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 870 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=219, Invalid=537, Unknown=0, NotChecked=0, Total=756 [2018-09-26 09:49:06,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2018-09-26 09:49:06,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 235. [2018-09-26 09:49:06,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2018-09-26 09:49:06,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 425 transitions. [2018-09-26 09:49:06,768 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 425 transitions. Word has length 86 [2018-09-26 09:49:06,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:49:06,769 INFO L480 AbstractCegarLoop]: Abstraction has 235 states and 425 transitions. [2018-09-26 09:49:06,769 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-26 09:49:06,769 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 425 transitions. [2018-09-26 09:49:06,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2018-09-26 09:49:06,770 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:49:06,770 INFO L375 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:49:06,770 INFO L423 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:49:06,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:49:06,771 INFO L82 PathProgramCache]: Analyzing trace with hash 711910056, now seen corresponding path program 1 times [2018-09-26 09:49:06,771 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy Received shutdown request... [2018-09-26 09:49:27,476 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-26 09:49:27,480 WARN L206 ceAbstractionStarter]: Timeout [2018-09-26 09:49:27,480 INFO L202 PluginConnector]: Adding new model s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 09:49:27 BoogieIcfgContainer [2018-09-26 09:49:27,480 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 09:49:27,481 INFO L168 Benchmark]: Toolchain (without parser) took 271886.89 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -39.8 MB). Free memory was 1.4 GB in the beginning and 859.2 MB in the end (delta: 567.3 MB). Peak memory consumption was 527.4 MB. Max. memory is 7.1 GB. [2018-09-26 09:49:27,484 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:49:27,484 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.04 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:49:27,485 INFO L168 Benchmark]: Boogie Preprocessor took 34.58 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:49:27,485 INFO L168 Benchmark]: RCFGBuilder took 516.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-26 09:49:27,486 INFO L168 Benchmark]: TraceAbstraction took 271271.58 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -39.8 MB). Free memory was 1.4 GB in the beginning and 859.2 MB in the end (delta: 546.1 MB). Peak memory consumption was 506.3 MB. Max. memory is 7.1 GB. [2018-09-26 09:49:27,490 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 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.04 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.58 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 516.45 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 271271.58 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -39.8 MB). Free memory was 1.4 GB in the beginning and 859.2 MB in the end (delta: 546.1 MB). Peak memory consumption was 506.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 516]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 516). Cancelled while BasicCegarLoop was analyzing trace of length 95 with TraceHistMax 8, while Pdr was Timeout or canceled while running Pdr. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. TIMEOUT Result, 271.2s OverallTime, 12 OverallIterations, 8 TraceHistogramMax, 1.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 275 SDtfs, 931 SDslu, 51 SDs, 0 SdLazy, 1131 SolverSat, 566 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 456077 GetRequests, 455373 SyntacticMatches, 470 SemanticMatches, 234 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8340 ImplicationChecksByTransitivity, 5.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=235occurred in iteration=11, 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: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 444 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 247.8s 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.cil.c_23.bpl_AutomizerBpl-pdr-smtinterpol.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_09-49-27-504.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_srvr_1.cil.c_23.bpl_AutomizerBpl-pdr-smtinterpol.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_09-49-27-504.csv Completed graceful shutdown