java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/programs/regression/bpl/AutomizerBpl-pdr.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_3.cil.c_20.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-56c9370 [2018-07-23 16:14:22,869 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-23 16:14:22,871 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-23 16:14:22,890 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-23 16:14:22,890 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-23 16:14:22,892 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-23 16:14:22,894 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-23 16:14:22,896 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-23 16:14:22,900 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-23 16:14:22,901 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-23 16:14:22,904 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-23 16:14:22,904 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-23 16:14:22,905 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-23 16:14:22,906 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-23 16:14:22,910 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-23 16:14:22,912 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-23 16:14:22,913 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-23 16:14:22,923 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-23 16:14:22,925 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-23 16:14:22,929 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-23 16:14:22,933 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-23 16:14:22,935 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-23 16:14:22,939 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-23 16:14:22,939 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-23 16:14:22,942 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-23 16:14:22,943 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-23 16:14:22,944 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-23 16:14:22,946 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-23 16:14:22,947 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-23 16:14:22,948 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-23 16:14:22,949 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-23 16:14:22,952 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-23 16:14:22,956 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/regression/bpl/AutomizerBpl-pdr.epf [2018-07-23 16:14:22,968 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-23 16:14:22,969 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-23 16:14:22,971 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-23 16:14:22,971 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-23 16:14:22,972 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-23 16:14:22,972 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-23 16:14:23,039 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-23 16:14:23,055 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-23 16:14:23,062 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-23 16:14:23,064 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-23 16:14:23,065 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-23 16:14:23,065 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_3.cil.c_20.bpl [2018-07-23 16:14:23,066 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_3.cil.c_20.bpl' [2018-07-23 16:14:23,176 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-23 16:14:23,181 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2018-07-23 16:14:23,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-23 16:14:23,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-23 16:14:23,183 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-23 16:14:23,218 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 23.07 04:14:23" (1/1) ... [2018-07-23 16:14:23,219 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 23.07 04:14:23" (1/1) ... [2018-07-23 16:14:23,236 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 23.07 04:14:23" (1/1) ... [2018-07-23 16:14:23,243 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 23.07 04:14:23" (1/1) ... [2018-07-23 16:14:23,262 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 23.07 04:14:23" (1/1) ... [2018-07-23 16:14:23,268 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 23.07 04:14:23" (1/1) ... [2018-07-23 16:14:23,271 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 23.07 04:14:23" (1/1) ... [2018-07-23 16:14:23,279 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-23 16:14:23,280 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-23 16:14:23,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-23 16:14:23,281 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-23 16:14:23,282 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 23.07 04:14:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-07-23 16:14:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-23 16:14:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-23 16:14:24,128 INFO L261 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-23 16:14:24,129 INFO L202 PluginConnector]: Adding new model s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.07 04:14:24 BoogieIcfgContainer [2018-07-23 16:14:24,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-23 16:14:24,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-23 16:14:24,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-23 16:14:24,134 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-23 16:14:24,135 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 23.07 04:14:23" (1/2) ... [2018-07-23 16:14:24,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6725d0e1 and model type s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.07 04:14:24, skipping insertion in model container [2018-07-23 16:14:24,136 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 23.07 04:14:24" (2/2) ... [2018-07-23 16:14:24,138 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_3.cil.c_20.bpl [2018-07-23 16:14:24,147 INFO L132 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-23 16:14:24,159 INFO L144 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-23 16:14:24,211 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-23 16:14:24,212 INFO L373 AbstractCegarLoop]: Interprodecural is true [2018-07-23 16:14:24,212 INFO L374 AbstractCegarLoop]: Hoare is true [2018-07-23 16:14:24,212 INFO L375 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-23 16:14:24,212 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-23 16:14:24,212 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-23 16:14:24,213 INFO L378 AbstractCegarLoop]: Difference is false [2018-07-23 16:14:24,213 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-23 16:14:24,213 INFO L384 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-23 16:14:24,234 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-07-23 16:14:24,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-07-23 16:14:24,252 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:14:24,253 INFO L353 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 16:14:24,253 INFO L414 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:14:24,259 INFO L82 PathProgramCache]: Analyzing trace with hash -505433777, now seen corresponding path program 1 times [2018-07-23 16:14:24,265 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:14:25,354 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:14:25,354 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-23 16:14:25,359 INFO L450 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-23 16:14:25,366 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-23 16:14:25,367 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-23 16:14:25,369 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 4 states. [2018-07-23 16:14:25,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:14:25,680 INFO L93 Difference]: Finished difference Result 47 states and 81 transitions. [2018-07-23 16:14:25,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-23 16:14:25,682 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-07-23 16:14:25,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:14:25,697 INFO L225 Difference]: With dead ends: 47 [2018-07-23 16:14:25,698 INFO L226 Difference]: Without dead ends: 44 [2018-07-23 16:14:25,701 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 854 GetRequests, 839 SyntacticMatches, 11 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-23 16:14:25,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-07-23 16:14:25,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-07-23 16:14:25,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-07-23 16:14:25,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 77 transitions. [2018-07-23 16:14:25,748 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 77 transitions. Word has length 15 [2018-07-23 16:14:25,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:14:25,749 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 77 transitions. [2018-07-23 16:14:25,750 INFO L472 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-23 16:14:25,750 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 77 transitions. [2018-07-23 16:14:25,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-07-23 16:14:25,751 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:14:25,752 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 16:14:25,752 INFO L414 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:14:25,753 INFO L82 PathProgramCache]: Analyzing trace with hash 540887753, now seen corresponding path program 1 times [2018-07-23 16:14:25,753 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:14:27,584 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:14:27,585 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 16:14:27,586 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 16:14:27,587 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 16:14:27,587 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-07-23 16:14:27,588 INFO L87 Difference]: Start difference. First operand 44 states and 77 transitions. Second operand 6 states. [2018-07-23 16:14:27,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:14:27,959 INFO L93 Difference]: Finished difference Result 60 states and 104 transitions. [2018-07-23 16:14:27,959 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-23 16:14:27,959 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2018-07-23 16:14:27,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:14:27,962 INFO L225 Difference]: With dead ends: 60 [2018-07-23 16:14:27,962 INFO L226 Difference]: Without dead ends: 58 [2018-07-23 16:14:27,963 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 3162 GetRequests, 3135 SyntacticMatches, 17 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-07-23 16:14:27,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-07-23 16:14:27,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 44. [2018-07-23 16:14:27,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-07-23 16:14:27,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 77 transitions. [2018-07-23 16:14:27,975 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 77 transitions. Word has length 35 [2018-07-23 16:14:27,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:14:27,976 INFO L471 AbstractCegarLoop]: Abstraction has 44 states and 77 transitions. [2018-07-23 16:14:27,976 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 16:14:27,976 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 77 transitions. [2018-07-23 16:14:27,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-07-23 16:14:27,977 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:14:27,977 INFO L353 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2018-07-23 16:14:27,978 INFO L414 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:14:27,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1868096046, now seen corresponding path program 1 times [2018-07-23 16:14:27,978 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:14:32,295 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:14:32,295 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-23 16:14:32,296 INFO L450 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-23 16:14:32,296 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-23 16:14:32,296 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-07-23 16:14:32,297 INFO L87 Difference]: Start difference. First operand 44 states and 77 transitions. Second operand 6 states. [2018-07-23 16:14:33,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:14:33,015 INFO L93 Difference]: Finished difference Result 98 states and 173 transitions. [2018-07-23 16:14:33,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-23 16:14:33,016 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2018-07-23 16:14:33,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:14:33,017 INFO L225 Difference]: With dead ends: 98 [2018-07-23 16:14:33,018 INFO L226 Difference]: Without dead ends: 96 [2018-07-23 16:14:33,018 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 14493 GetRequests, 14446 SyntacticMatches, 32 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2018-07-23 16:14:33,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-07-23 16:14:33,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 89. [2018-07-23 16:14:33,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-07-23 16:14:33,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 159 transitions. [2018-07-23 16:14:33,046 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 159 transitions. Word has length 40 [2018-07-23 16:14:33,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:14:33,047 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 159 transitions. [2018-07-23 16:14:33,047 INFO L472 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-23 16:14:33,047 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 159 transitions. [2018-07-23 16:14:33,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-07-23 16:14:33,049 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:14:33,049 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 16:14:33,049 INFO L414 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:14:33,050 INFO L82 PathProgramCache]: Analyzing trace with hash 2049536668, now seen corresponding path program 1 times [2018-07-23 16:14:33,050 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:14:36,872 WARN L169 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-07-23 16:14:40,090 WARN L169 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-07-23 16:14:41,092 WARN L169 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-07-23 16:14:46,775 WARN L169 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-07-23 16:14:48,841 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:14:48,842 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 16:14:48,842 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 16:14:48,843 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 16:14:48,843 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=633, Unknown=0, NotChecked=0, Total=870 [2018-07-23 16:14:48,844 INFO L87 Difference]: Start difference. First operand 89 states and 159 transitions. Second operand 7 states. [2018-07-23 16:14:49,114 WARN L169 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2018-07-23 16:14:50,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:14:50,217 INFO L93 Difference]: Finished difference Result 134 states and 238 transitions. [2018-07-23 16:14:50,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-23 16:14:50,217 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2018-07-23 16:14:50,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:14:50,220 INFO L225 Difference]: With dead ends: 134 [2018-07-23 16:14:50,220 INFO L226 Difference]: Without dead ends: 132 [2018-07-23 16:14:50,221 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 33574 GetRequests, 33494 SyntacticMatches, 50 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1090 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=279, Invalid=713, Unknown=0, NotChecked=0, Total=992 [2018-07-23 16:14:50,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-07-23 16:14:50,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 81. [2018-07-23 16:14:50,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-07-23 16:14:50,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 145 transitions. [2018-07-23 16:14:50,243 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 145 transitions. Word has length 48 [2018-07-23 16:14:50,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:14:50,243 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 145 transitions. [2018-07-23 16:14:50,243 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 16:14:50,244 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 145 transitions. [2018-07-23 16:14:50,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-07-23 16:14:50,245 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:14:50,246 INFO L353 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 16:14:50,246 INFO L414 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:14:50,246 INFO L82 PathProgramCache]: Analyzing trace with hash -359900094, now seen corresponding path program 1 times [2018-07-23 16:14:50,246 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:14:54,189 WARN L169 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-07-23 16:14:58,798 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-07-23 16:15:00,044 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:15:00,045 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-23 16:15:00,045 INFO L450 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-23 16:15:00,046 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-23 16:15:00,046 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2018-07-23 16:15:00,046 INFO L87 Difference]: Start difference. First operand 81 states and 145 transitions. Second operand 7 states. [2018-07-23 16:15:00,232 WARN L169 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2018-07-23 16:15:00,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:15:00,945 INFO L93 Difference]: Finished difference Result 185 states and 332 transitions. [2018-07-23 16:15:00,948 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-23 16:15:00,949 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-07-23 16:15:00,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:15:00,951 INFO L225 Difference]: With dead ends: 185 [2018-07-23 16:15:00,951 INFO L226 Difference]: Without dead ends: 183 [2018-07-23 16:15:00,952 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 30237 GetRequests, 30176 SyntacticMatches, 41 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2018-07-23 16:15:00,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-07-23 16:15:01,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 173. [2018-07-23 16:15:01,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-07-23 16:15:01,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 313 transitions. [2018-07-23 16:15:01,007 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 313 transitions. Word has length 51 [2018-07-23 16:15:01,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:15:01,008 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 313 transitions. [2018-07-23 16:15:01,008 INFO L472 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-23 16:15:01,008 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 313 transitions. [2018-07-23 16:15:01,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-07-23 16:15:01,011 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:15:01,011 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 16:15:01,011 INFO L414 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:15:01,012 INFO L82 PathProgramCache]: Analyzing trace with hash -1204157128, now seen corresponding path program 1 times [2018-07-23 16:15:01,012 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:15:04,430 WARN L169 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-07-23 16:15:07,570 WARN L169 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-07-23 16:15:08,747 WARN L169 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-07-23 16:15:11,310 WARN L169 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2018-07-23 16:15:15,480 WARN L169 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-07-23 16:15:19,750 WARN L169 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2018-07-23 16:15:21,865 WARN L169 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2018-07-23 16:15:35,710 WARN L169 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2018-07-23 16:15:40,444 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:15:40,445 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-23 16:15:40,445 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 16:15:40,446 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 16:15:40,446 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=395, Invalid=1087, Unknown=0, NotChecked=0, Total=1482 [2018-07-23 16:15:40,447 INFO L87 Difference]: Start difference. First operand 173 states and 313 transitions. Second operand 8 states. [2018-07-23 16:15:40,838 WARN L169 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2018-07-23 16:15:41,431 WARN L169 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2018-07-23 16:15:41,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:15:41,787 INFO L93 Difference]: Finished difference Result 261 states and 470 transitions. [2018-07-23 16:15:41,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-23 16:15:41,787 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2018-07-23 16:15:41,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:15:41,790 INFO L225 Difference]: With dead ends: 261 [2018-07-23 16:15:41,790 INFO L226 Difference]: Without dead ends: 259 [2018-07-23 16:15:41,792 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 67672 GetRequests, 67567 SyntacticMatches, 65 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1927 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=467, Invalid=1255, Unknown=0, NotChecked=0, Total=1722 [2018-07-23 16:15:41,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2018-07-23 16:15:41,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 128. [2018-07-23 16:15:41,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-07-23 16:15:41,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 231 transitions. [2018-07-23 16:15:41,826 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 231 transitions. Word has length 59 [2018-07-23 16:15:41,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:15:41,827 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 231 transitions. [2018-07-23 16:15:41,827 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-23 16:15:41,827 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 231 transitions. [2018-07-23 16:15:41,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-07-23 16:15:41,829 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:15:41,829 INFO L353 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 16:15:41,829 INFO L414 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:15:41,830 INFO L82 PathProgramCache]: Analyzing trace with hash -1746155662, now seen corresponding path program 1 times [2018-07-23 16:15:41,830 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:15:51,016 WARN L169 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-07-23 16:15:52,086 WARN L169 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-07-23 16:16:00,641 WARN L169 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-07-23 16:16:03,203 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:16:03,203 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-23 16:16:03,203 INFO L450 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-23 16:16:03,204 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-23 16:16:03,204 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2018-07-23 16:16:03,204 INFO L87 Difference]: Start difference. First operand 128 states and 231 transitions. Second operand 8 states. [2018-07-23 16:16:03,473 WARN L169 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2018-07-23 16:16:03,719 WARN L169 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2018-07-23 16:16:04,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:16:04,456 INFO L93 Difference]: Finished difference Result 268 states and 484 transitions. [2018-07-23 16:16:04,457 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-07-23 16:16:04,457 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2018-07-23 16:16:04,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:16:04,459 INFO L225 Difference]: With dead ends: 268 [2018-07-23 16:16:04,459 INFO L226 Difference]: Without dead ends: 266 [2018-07-23 16:16:04,460 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 53211 GetRequests, 53137 SyntacticMatches, 49 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=194, Invalid=508, Unknown=0, NotChecked=0, Total=702 [2018-07-23 16:16:04,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2018-07-23 16:16:04,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 252. [2018-07-23 16:16:04,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2018-07-23 16:16:04,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 457 transitions. [2018-07-23 16:16:04,543 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 457 transitions. Word has length 61 [2018-07-23 16:16:04,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:16:04,543 INFO L471 AbstractCegarLoop]: Abstraction has 252 states and 457 transitions. [2018-07-23 16:16:04,543 INFO L472 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-23 16:16:04,543 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 457 transitions. [2018-07-23 16:16:04,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-07-23 16:16:04,546 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:16:04,546 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 16:16:04,546 INFO L414 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:16:04,546 INFO L82 PathProgramCache]: Analyzing trace with hash 443233512, now seen corresponding path program 1 times [2018-07-23 16:16:04,546 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:16:07,873 WARN L169 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-07-23 16:16:11,734 WARN L169 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-07-23 16:16:12,719 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-07-23 16:16:13,000 WARN L169 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-07-23 16:16:15,735 WARN L169 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2018-07-23 16:16:20,189 WARN L169 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-07-23 16:16:24,377 WARN L169 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2018-07-23 16:16:26,528 WARN L169 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-07-23 16:16:27,118 WARN L169 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2018-07-23 16:16:27,395 WARN L169 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2018-07-23 16:16:31,314 WARN L169 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2018-07-23 16:16:43,177 WARN L169 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2018-07-23 16:16:49,954 WARN L169 SmtUtils]: Spent 509.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2018-07-23 16:16:53,944 WARN L169 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2018-07-23 16:17:22,204 WARN L169 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2018-07-23 16:17:32,005 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:17:32,005 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-07-23 16:17:32,005 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-23 16:17:32,006 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-23 16:17:32,007 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=596, Invalid=1660, Unknown=0, NotChecked=0, Total=2256 [2018-07-23 16:17:32,007 INFO L87 Difference]: Start difference. First operand 252 states and 457 transitions. Second operand 9 states. [2018-07-23 16:17:32,526 WARN L169 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2018-07-23 16:17:32,816 WARN L169 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2018-07-23 16:17:33,488 WARN L169 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2018-07-23 16:17:34,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:17:34,111 INFO L93 Difference]: Finished difference Result 406 states and 735 transitions. [2018-07-23 16:17:34,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 16:17:34,111 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2018-07-23 16:17:34,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:17:34,115 INFO L225 Difference]: With dead ends: 406 [2018-07-23 16:17:34,115 INFO L226 Difference]: Without dead ends: 404 [2018-07-23 16:17:34,117 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 117074 GetRequests, 116945 SyntacticMatches, 79 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2944 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=701, Invalid=1951, Unknown=0, NotChecked=0, Total=2652 [2018-07-23 16:17:34,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2018-07-23 16:17:34,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 185. [2018-07-23 16:17:34,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-07-23 16:17:34,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 335 transitions. [2018-07-23 16:17:34,175 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 335 transitions. Word has length 69 [2018-07-23 16:17:34,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:17:34,175 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 335 transitions. [2018-07-23 16:17:34,175 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-23 16:17:34,175 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 335 transitions. [2018-07-23 16:17:34,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-07-23 16:17:34,176 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:17:34,176 INFO L353 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 16:17:34,177 INFO L414 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:17:34,177 INFO L82 PathProgramCache]: Analyzing trace with hash -1532150264, now seen corresponding path program 1 times [2018-07-23 16:17:34,177 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:17:35,619 WARN L169 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-07-23 16:17:38,832 WARN L169 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-07-23 16:17:44,339 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-07-23 16:17:45,447 WARN L169 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-07-23 16:17:54,806 WARN L169 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-07-23 16:17:56,325 WARN L169 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2018-07-23 16:17:56,738 WARN L169 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2018-07-23 16:18:10,888 WARN L169 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2018-07-23 16:18:15,183 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-23 16:18:15,183 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-07-23 16:18:15,184 INFO L450 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-23 16:18:15,184 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-23 16:18:15,185 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2018-07-23 16:18:15,185 INFO L87 Difference]: Start difference. First operand 185 states and 335 transitions. Second operand 9 states. [2018-07-23 16:18:15,553 WARN L169 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2018-07-23 16:18:15,950 WARN L169 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2018-07-23 16:18:16,580 WARN L169 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2018-07-23 16:18:16,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-23 16:18:16,796 INFO L93 Difference]: Finished difference Result 353 states and 640 transitions. [2018-07-23 16:18:16,796 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-07-23 16:18:16,797 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2018-07-23 16:18:16,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-23 16:18:16,800 INFO L225 Difference]: With dead ends: 353 [2018-07-23 16:18:16,800 INFO L226 Difference]: Without dead ends: 351 [2018-07-23 16:18:16,801 INFO L573 BasicCegarLoop]: 0 DeclaredPredicates, 83536 GetRequests, 83450 SyntacticMatches, 56 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 910 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2018-07-23 16:18:16,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2018-07-23 16:18:16,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 331. [2018-07-23 16:18:16,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2018-07-23 16:18:16,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 601 transitions. [2018-07-23 16:18:16,917 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 601 transitions. Word has length 70 [2018-07-23 16:18:16,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-23 16:18:16,917 INFO L471 AbstractCegarLoop]: Abstraction has 331 states and 601 transitions. [2018-07-23 16:18:16,917 INFO L472 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-23 16:18:16,917 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 601 transitions. [2018-07-23 16:18:16,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-07-23 16:18:16,919 INFO L345 BasicCegarLoop]: Found error trace [2018-07-23 16:18:16,919 INFO L353 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-23 16:18:16,919 INFO L414 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0AssertViolationASSERT]=== [2018-07-23 16:18:16,919 INFO L82 PathProgramCache]: Analyzing trace with hash 1611830610, now seen corresponding path program 1 times [2018-07-23 16:18:16,919 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-23 16:18:17,691 WARN L169 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2018-07-23 16:18:20,901 WARN L169 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-07-23 16:18:24,664 WARN L169 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-07-23 16:18:25,740 WARN L169 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-07-23 16:18:26,010 WARN L169 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-07-23 16:18:28,864 WARN L169 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2018-07-23 16:18:33,515 WARN L169 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-07-23 16:18:38,182 WARN L169 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2018-07-23 16:18:40,342 WARN L169 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-07-23 16:18:40,793 WARN L169 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2018-07-23 16:18:45,102 WARN L169 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2018-07-23 16:18:58,096 WARN L169 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 68 Received shutdown request... [2018-07-23 16:19:04,321 WARN L540 AbstractCegarLoop]: Verification canceled [2018-07-23 16:19:04,325 WARN L202 ceAbstractionStarter]: Timeout [2018-07-23 16:19:04,325 INFO L202 PluginConnector]: Adding new model s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.07 04:19:04 BoogieIcfgContainer [2018-07-23 16:19:04,325 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-23 16:19:04,326 INFO L168 Benchmark]: Toolchain (without parser) took 281149.32 ms. Allocated memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -73.9 MB). Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 173.7 MB). Peak memory consumption was 99.8 MB. Max. memory is 7.1 GB. [2018-07-23 16:19:04,328 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 16:19:04,328 INFO L168 Benchmark]: Boogie Preprocessor took 97.66 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-23 16:19:04,329 INFO L168 Benchmark]: RCFGBuilder took 848.95 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. [2018-07-23 16:19:04,329 INFO L168 Benchmark]: TraceAbstraction took 280194.51 ms. Allocated memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -73.9 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 142.0 MB). Peak memory consumption was 68.0 MB. Max. memory is 7.1 GB. [2018-07-23 16:19:04,333 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.22 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.66 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 848.95 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 280194.51 ms. Allocated memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -73.9 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 142.0 MB). Peak memory consumption was 68.0 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, 280.1s OverallTime, 10 OverallIterations, 7 TraceHistogramMax, 10.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 67 SDtfs, 1122 SDslu, 37 SDs, 0 SdLazy, 1006 SolverSat, 1113 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 403813 GetRequests, 403189 SyntacticMatches, 400 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8336 ImplicationChecksByTransitivity, 33.8s 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: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 466 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 222.0s 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.epf_AutomizerBpl.xml/Csv-Benchmark-0-2018-07-23_16-19-04-343.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_srvr_3.cil.c_20.bpl_AutomizerBpl-pdr.epf_AutomizerBpl.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-23_16-19-04-343.csv Completed graceful shutdown