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.BV.c.cil.c_21.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 09:44:55,083 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 09:44:55,085 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 09:44:55,099 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 09:44:55,099 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 09:44:55,100 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 09:44:55,102 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 09:44:55,104 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 09:44:55,105 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 09:44:55,106 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 09:44:55,107 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2018-09-26 09:44:55,135 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 09:44:55,144 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 09:44:55,145 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 09:44:55,146 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-26 09:44:55,146 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-09-26 09:44:55,147 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 09:44:55,147 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 09:44:55,147 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-09-26 09:44:55,147 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 09:44:55,227 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 09:44:55,248 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 09:44:55,256 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 09:44:55,257 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 09:44:55,258 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 09:44:55,259 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_1.BV.c.cil.c_21.bpl [2018-09-26 09:44:55,259 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_1.BV.c.cil.c_21.bpl' [2018-09-26 09:44:55,360 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 09:44:55,363 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 09:44:55,365 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 09:44:55,365 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 09:44:55,365 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 09:44:55,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:44:55" (1/1) ... [2018-09-26 09:44:55,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:44:55" (1/1) ... [2018-09-26 09:44:55,422 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 09:44:55,423 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 09:44:55,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 09:44:55,423 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 09:44:55,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:44:55" (1/1) ... [2018-09-26 09:44:55,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:44:55" (1/1) ... [2018-09-26 09:44:55,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:44:55" (1/1) ... [2018-09-26 09:44:55,449 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:44:55" (1/1) ... [2018-09-26 09:44:55,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:44:55" (1/1) ... [2018-09-26 09:44:55,471 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:44:55" (1/1) ... [2018-09-26 09:44:55,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:44:55" (1/1) ... [2018-09-26 09:44:55,489 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 09:44:55,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 09:44:55,490 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 09:44:55,490 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 09:44:55,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:44:55" (1/1) ... [2018-09-26 09:44:55,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 09:44:55,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 09:44:56,076 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 09:44:56,077 INFO L202 PluginConnector]: Adding new model s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:44:56 BoogieIcfgContainer [2018-09-26 09:44:56,077 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 09:44:56,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 09:44:56,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 09:44:56,082 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 09:44:56,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:44:55" (1/2) ... [2018-09-26 09:44:56,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@499d8685 and model type s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:44:56, skipping insertion in model container [2018-09-26 09:44:56,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:44:56" (2/2) ... [2018-09-26 09:44:56,087 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_1.BV.c.cil.c_21.bpl [2018-09-26 09:44:56,096 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 09:44:56,104 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 09:44:56,156 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 09:44:56,157 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 09:44:56,157 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 09:44:56,157 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 09:44:56,158 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 09:44:56,158 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 09:44:56,158 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 09:44:56,158 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 09:44:56,158 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 09:44:56,175 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-09-26 09:44:56,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-26 09:44:56,190 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:44:56,193 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:44:56,194 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:44:56,205 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:44:56,206 INFO L82 PathProgramCache]: Analyzing trace with hash -505433777, now seen corresponding path program 1 times [2018-09-26 09:44:56,214 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:44:56,802 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:44:56,803 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 09:44:56,808 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 09:44:56,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 09:44:56,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-26 09:44:56,820 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 4 states. [2018-09-26 09:44:57,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:44:57,010 INFO L93 Difference]: Finished difference Result 47 states and 81 transitions. [2018-09-26 09:44:57,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 09:44:57,012 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-09-26 09:44:57,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:44:57,030 INFO L225 Difference]: With dead ends: 47 [2018-09-26 09:44:57,030 INFO L226 Difference]: Without dead ends: 44 [2018-09-26 09:44:57,034 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 854 GetRequests, 839 SyntacticMatches, 11 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-26 09:44:57,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-09-26 09:44:57,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-09-26 09:44:57,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-09-26 09:44:57,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 77 transitions. [2018-09-26 09:44:57,102 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 77 transitions. Word has length 15 [2018-09-26 09:44:57,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:44:57,102 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 77 transitions. [2018-09-26 09:44:57,103 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 09:44:57,103 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 77 transitions. [2018-09-26 09:44:57,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-26 09:44:57,105 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:44:57,105 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:44:57,106 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:44:57,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:44:57,106 INFO L82 PathProgramCache]: Analyzing trace with hash 540887753, now seen corresponding path program 1 times [2018-09-26 09:44:57,107 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:44:58,112 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:44:58,112 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-26 09:44:58,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 09:44:58,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 09:44:58,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-09-26 09:44:58,115 INFO L87 Difference]: Start difference. First operand 44 states and 77 transitions. Second operand 6 states. [2018-09-26 09:44:58,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:44:58,290 INFO L93 Difference]: Finished difference Result 60 states and 104 transitions. [2018-09-26 09:44:58,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 09:44:58,290 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2018-09-26 09:44:58,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:44:58,294 INFO L225 Difference]: With dead ends: 60 [2018-09-26 09:44:58,294 INFO L226 Difference]: Without dead ends: 58 [2018-09-26 09:44:58,298 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3162 GetRequests, 3135 SyntacticMatches, 17 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-09-26 09:44:58,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-09-26 09:44:58,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 44. [2018-09-26 09:44:58,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-09-26 09:44:58,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 77 transitions. [2018-09-26 09:44:58,316 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 77 transitions. Word has length 35 [2018-09-26 09:44:58,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:44:58,317 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 77 transitions. [2018-09-26 09:44:58,317 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 09:44:58,317 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 77 transitions. [2018-09-26 09:44:58,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-26 09:44:58,321 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:44:58,321 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2018-09-26 09:44:58,321 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:44:58,321 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:44:58,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1868096046, now seen corresponding path program 1 times [2018-09-26 09:44:58,322 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:45:03,946 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:45:03,947 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-26 09:45:03,947 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 09:45:03,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 09:45:03,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-09-26 09:45:03,948 INFO L87 Difference]: Start difference. First operand 44 states and 77 transitions. Second operand 6 states. [2018-09-26 09:45:04,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:45:04,240 INFO L93 Difference]: Finished difference Result 98 states and 173 transitions. [2018-09-26 09:45:04,241 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-26 09:45:04,241 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2018-09-26 09:45:04,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:45:04,244 INFO L225 Difference]: With dead ends: 98 [2018-09-26 09:45:04,244 INFO L226 Difference]: Without dead ends: 96 [2018-09-26 09:45:04,247 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14493 GetRequests, 14446 SyntacticMatches, 32 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2018-09-26 09:45:04,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-09-26 09:45:04,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 89. [2018-09-26 09:45:04,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-09-26 09:45:04,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 159 transitions. [2018-09-26 09:45:04,281 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 159 transitions. Word has length 40 [2018-09-26 09:45:04,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:45:04,282 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 159 transitions. [2018-09-26 09:45:04,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 09:45:04,283 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 159 transitions. [2018-09-26 09:45:04,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-26 09:45:04,284 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:45:04,285 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:45:04,285 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:45:04,286 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:45:04,286 INFO L82 PathProgramCache]: Analyzing trace with hash 2049536668, now seen corresponding path program 1 times [2018-09-26 09:45:04,286 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:45:21,938 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:45:21,938 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-26 09:45:21,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-26 09:45:21,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-26 09:45:21,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=633, Unknown=0, NotChecked=0, Total=870 [2018-09-26 09:45:21,940 INFO L87 Difference]: Start difference. First operand 89 states and 159 transitions. Second operand 7 states. [2018-09-26 09:45:22,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:45:22,254 INFO L93 Difference]: Finished difference Result 134 states and 238 transitions. [2018-09-26 09:45:22,254 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-26 09:45:22,255 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2018-09-26 09:45:22,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:45:22,257 INFO L225 Difference]: With dead ends: 134 [2018-09-26 09:45:22,257 INFO L226 Difference]: Without dead ends: 132 [2018-09-26 09:45:22,258 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33574 GetRequests, 33494 SyntacticMatches, 50 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1090 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=279, Invalid=713, Unknown=0, NotChecked=0, Total=992 [2018-09-26 09:45:22,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-09-26 09:45:22,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 81. [2018-09-26 09:45:22,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-26 09:45:22,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 145 transitions. [2018-09-26 09:45:22,286 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 145 transitions. Word has length 48 [2018-09-26 09:45:22,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:45:22,287 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 145 transitions. [2018-09-26 09:45:22,287 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-26 09:45:22,287 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 145 transitions. [2018-09-26 09:45:22,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-26 09:45:22,289 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:45:22,289 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:45:22,290 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:45:22,290 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:45:22,290 INFO L82 PathProgramCache]: Analyzing trace with hash -359900094, now seen corresponding path program 1 times [2018-09-26 09:45:22,290 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:45:33,815 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:45:33,816 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-26 09:45:33,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-26 09:45:33,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-26 09:45:33,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2018-09-26 09:45:33,817 INFO L87 Difference]: Start difference. First operand 81 states and 145 transitions. Second operand 7 states. [2018-09-26 09:45:34,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:45:34,152 INFO L93 Difference]: Finished difference Result 185 states and 332 transitions. [2018-09-26 09:45:34,152 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-26 09:45:34,152 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-09-26 09:45:34,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:45:34,156 INFO L225 Difference]: With dead ends: 185 [2018-09-26 09:45:34,157 INFO L226 Difference]: Without dead ends: 183 [2018-09-26 09:45:34,160 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30237 GetRequests, 30176 SyntacticMatches, 41 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2018-09-26 09:45:34,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-09-26 09:45:34,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 173. [2018-09-26 09:45:34,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-09-26 09:45:34,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 313 transitions. [2018-09-26 09:45:34,269 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 313 transitions. Word has length 51 [2018-09-26 09:45:34,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:45:34,270 INFO L480 AbstractCegarLoop]: Abstraction has 173 states and 313 transitions. [2018-09-26 09:45:34,270 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-26 09:45:34,270 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 313 transitions. [2018-09-26 09:45:34,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-09-26 09:45:34,278 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:45:34,278 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:45:34,278 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:45:34,279 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:45:34,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1204157128, now seen corresponding path program 1 times [2018-09-26 09:45:34,279 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:46:20,366 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:46:20,367 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-26 09:46:20,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-26 09:46:20,368 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-26 09:46:20,368 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=395, Invalid=1087, Unknown=0, NotChecked=0, Total=1482 [2018-09-26 09:46:20,369 INFO L87 Difference]: Start difference. First operand 173 states and 313 transitions. Second operand 8 states. [2018-09-26 09:46:20,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:46:20,773 INFO L93 Difference]: Finished difference Result 261 states and 470 transitions. [2018-09-26 09:46:20,773 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-26 09:46:20,773 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2018-09-26 09:46:20,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:46:20,775 INFO L225 Difference]: With dead ends: 261 [2018-09-26 09:46:20,776 INFO L226 Difference]: Without dead ends: 259 [2018-09-26 09:46:20,778 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 67672 GetRequests, 67567 SyntacticMatches, 65 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1927 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=467, Invalid=1255, Unknown=0, NotChecked=0, Total=1722 [2018-09-26 09:46:20,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2018-09-26 09:46:20,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 128. [2018-09-26 09:46:20,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-09-26 09:46:20,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 231 transitions. [2018-09-26 09:46:20,824 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 231 transitions. Word has length 59 [2018-09-26 09:46:20,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:46:20,824 INFO L480 AbstractCegarLoop]: Abstraction has 128 states and 231 transitions. [2018-09-26 09:46:20,825 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-26 09:46:20,825 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 231 transitions. [2018-09-26 09:46:20,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-09-26 09:46:20,826 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:46:20,827 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:46:20,827 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:46:20,827 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:46:20,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1746155662, now seen corresponding path program 1 times [2018-09-26 09:46:20,828 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:46:43,529 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:46:43,529 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-26 09:46:43,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-26 09:46:43,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-26 09:46:43,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2018-09-26 09:46:43,531 INFO L87 Difference]: Start difference. First operand 128 states and 231 transitions. Second operand 8 states. [2018-09-26 09:46:43,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:46:43,823 INFO L93 Difference]: Finished difference Result 268 states and 484 transitions. [2018-09-26 09:46:43,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-26 09:46:43,824 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2018-09-26 09:46:43,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:46:43,826 INFO L225 Difference]: With dead ends: 268 [2018-09-26 09:46:43,826 INFO L226 Difference]: Without dead ends: 266 [2018-09-26 09:46:43,827 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 53211 GetRequests, 53137 SyntacticMatches, 49 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=194, Invalid=508, Unknown=0, NotChecked=0, Total=702 [2018-09-26 09:46:43,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2018-09-26 09:46:43,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 252. [2018-09-26 09:46:43,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2018-09-26 09:46:43,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 457 transitions. [2018-09-26 09:46:43,907 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 457 transitions. Word has length 61 [2018-09-26 09:46:43,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:46:43,908 INFO L480 AbstractCegarLoop]: Abstraction has 252 states and 457 transitions. [2018-09-26 09:46:43,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-26 09:46:43,908 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 457 transitions. [2018-09-26 09:46:43,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-09-26 09:46:43,912 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:46:43,912 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:46:43,912 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:46:43,913 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:46:43,913 INFO L82 PathProgramCache]: Analyzing trace with hash 443233512, now seen corresponding path program 1 times [2018-09-26 09:46:43,913 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:48:25,265 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:48:25,265 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-26 09:48:25,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-26 09:48:25,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-26 09:48:25,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=596, Invalid=1660, Unknown=0, NotChecked=0, Total=2256 [2018-09-26 09:48:25,268 INFO L87 Difference]: Start difference. First operand 252 states and 457 transitions. Second operand 9 states. [2018-09-26 09:48:25,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:48:25,834 INFO L93 Difference]: Finished difference Result 406 states and 735 transitions. [2018-09-26 09:48:25,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-26 09:48:25,834 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2018-09-26 09:48:25,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:48:25,837 INFO L225 Difference]: With dead ends: 406 [2018-09-26 09:48:25,837 INFO L226 Difference]: Without dead ends: 404 [2018-09-26 09:48:25,839 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 117074 GetRequests, 116945 SyntacticMatches, 79 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2944 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=701, Invalid=1951, Unknown=0, NotChecked=0, Total=2652 [2018-09-26 09:48:25,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2018-09-26 09:48:25,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 185. [2018-09-26 09:48:25,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-09-26 09:48:25,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 335 transitions. [2018-09-26 09:48:25,905 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 335 transitions. Word has length 69 [2018-09-26 09:48:25,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:48:25,905 INFO L480 AbstractCegarLoop]: Abstraction has 185 states and 335 transitions. [2018-09-26 09:48:25,905 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-26 09:48:25,906 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 335 transitions. [2018-09-26 09:48:25,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-09-26 09:48:25,907 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:48:25,907 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:48:25,907 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:48:25,910 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:48:25,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1532150264, now seen corresponding path program 1 times [2018-09-26 09:48:25,910 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:49:11,735 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:49:11,736 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-26 09:49:11,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-26 09:49:11,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-26 09:49:11,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2018-09-26 09:49:11,738 INFO L87 Difference]: Start difference. First operand 185 states and 335 transitions. Second operand 9 states. [2018-09-26 09:49:12,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:49:12,282 INFO L93 Difference]: Finished difference Result 353 states and 640 transitions. [2018-09-26 09:49:12,282 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-26 09:49:12,282 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2018-09-26 09:49:12,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:49:12,285 INFO L225 Difference]: With dead ends: 353 [2018-09-26 09:49:12,285 INFO L226 Difference]: Without dead ends: 351 [2018-09-26 09:49:12,286 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 83536 GetRequests, 83450 SyntacticMatches, 56 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 910 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2018-09-26 09:49:12,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2018-09-26 09:49:12,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 331. [2018-09-26 09:49:12,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2018-09-26 09:49:12,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 601 transitions. [2018-09-26 09:49:12,445 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 601 transitions. Word has length 70 [2018-09-26 09:49:12,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:49:12,445 INFO L480 AbstractCegarLoop]: Abstraction has 331 states and 601 transitions. [2018-09-26 09:49:12,445 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-26 09:49:12,445 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 601 transitions. [2018-09-26 09:49:12,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-09-26 09:49:12,447 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:49:12,447 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:49:12,447 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:49:12,447 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:49:12,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1611830610, now seen corresponding path program 1 times [2018-09-26 09:49:12,447 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy Received shutdown request... [2018-09-26 09:49:22,260 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-26 09:49:22,265 WARN L206 ceAbstractionStarter]: Timeout [2018-09-26 09:49:22,265 INFO L202 PluginConnector]: Adding new model s3_srvr_1.BV.c.cil.c_21.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 09:49:22 BoogieIcfgContainer [2018-09-26 09:49:22,265 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 09:49:22,267 INFO L168 Benchmark]: Toolchain (without parser) took 266905.92 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 93.8 MB). Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 179.5 MB). Peak memory consumption was 273.3 MB. Max. memory is 7.1 GB. [2018-09-26 09:49:22,269 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:49:22,270 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.00 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:49:22,270 INFO L168 Benchmark]: Boogie Preprocessor took 65.86 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:49:22,271 INFO L168 Benchmark]: RCFGBuilder took 587.85 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-09-26 09:49:22,272 INFO L168 Benchmark]: TraceAbstraction took 266186.91 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 93.8 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 158.3 MB). Peak memory consumption was 252.2 MB. Max. memory is 7.1 GB. [2018-09-26 09:49:22,277 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 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 58.00 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 65.86 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 587.85 ms. Allocated memory is still 1.5 GB. Free memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 266186.91 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 93.8 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 158.3 MB). Peak memory consumption was 252.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 479]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 479). Cancelled while BasicCegarLoop was analyzing trace of length 79 with TraceHistMax 7, while Pdr was Timeout or canceled while running Pdr. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 1 error locations. TIMEOUT Result, 266.1s OverallTime, 10 OverallIterations, 7 TraceHistogramMax, 3.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 67 SDtfs, 1122 SDslu, 37 SDs, 0 SdLazy, 1006 SolverSat, 1113 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 403813 GetRequests, 403189 SyntacticMatches, 400 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8336 ImplicationChecksByTransitivity, 6.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=331occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 466 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 252.3s PdrRuntime, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_srvr_1.BV.c.cil.c_21.bpl_AutomizerBpl-pdr-smtinterpol.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_09-49-22-289.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_srvr_1.BV.c.cil.c_21.bpl_AutomizerBpl-pdr-smtinterpol.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_09-49-22-289.csv Completed graceful shutdown