java -Xmx8000000000 -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_2_alt.BV.c.cil.c_13.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 13:29:08,180 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 13:29:08,182 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 13:29:08,194 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 13:29:08,194 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 13:29:08,195 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 13:29:08,197 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 13:29:08,200 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 13:29:08,203 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 13:29:08,203 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 13:29:08,205 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 13:29:08,206 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 13:29:08,207 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 13:29:08,209 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 13:29:08,211 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 13:29:08,211 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 13:29:08,215 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 13:29:08,216 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 13:29:08,227 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 13:29:08,230 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 13:29:08,231 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 13:29:08,232 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 13:29:08,234 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 13:29:08,234 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 13:29:08,235 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 13:29:08,235 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 13:29:08,236 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 13:29:08,237 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 13:29:08,238 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 13:29:08,239 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 13:29:08,239 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 13:29:08,240 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-25 13:29:08,242 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-nestedInterpolants.epf [2018-07-25 13:29:08,251 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 13:29:08,252 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 13:29:08,253 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-25 13:29:08,253 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-25 13:29:08,253 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 13:29:08,253 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2018-07-25 13:29:08,254 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 13:29:08,254 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 13:29:08,316 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 13:29:08,333 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 13:29:08,338 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 13:29:08,340 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 13:29:08,340 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 13:29:08,341 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_2_alt.BV.c.cil.c_13.bpl [2018-07-25 13:29:08,341 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_2_alt.BV.c.cil.c_13.bpl' [2018-07-25 13:29:08,420 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 13:29:08,422 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 13:29:08,423 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 13:29:08,423 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 13:29:08,423 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 13:29:08,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "s3_srvr_2_alt.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:29:08" (1/1) ... [2018-07-25 13:29:08,461 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "s3_srvr_2_alt.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:29:08" (1/1) ... [2018-07-25 13:29:08,473 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 13:29:08,474 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 13:29:08,474 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 13:29:08,474 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 13:29:08,485 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "s3_srvr_2_alt.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:29:08" (1/1) ... [2018-07-25 13:29:08,486 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "s3_srvr_2_alt.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:29:08" (1/1) ... [2018-07-25 13:29:08,488 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "s3_srvr_2_alt.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:29:08" (1/1) ... [2018-07-25 13:29:08,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "s3_srvr_2_alt.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:29:08" (1/1) ... [2018-07-25 13:29:08,496 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "s3_srvr_2_alt.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:29:08" (1/1) ... [2018-07-25 13:29:08,499 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "s3_srvr_2_alt.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:29:08" (1/1) ... [2018-07-25 13:29:08,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "s3_srvr_2_alt.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:29:08" (1/1) ... [2018-07-25 13:29:08,505 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 13:29:08,506 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 13:29:08,506 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 13:29:08,506 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 13:29:08,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "s3_srvr_2_alt.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:29:08" (1/1) ... [2018-07-25 13:29:08,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 13:29:08,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 13:29:08,979 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 13:29:08,980 INFO L202 PluginConnector]: Adding new model s3_srvr_2_alt.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 01:29:08 BoogieIcfgContainer [2018-07-25 13:29:08,980 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 13:29:08,982 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 13:29:08,982 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 13:29:08,985 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 13:29:08,986 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_2_alt.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 01:29:08" (1/2) ... [2018-07-25 13:29:08,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@97e375e and model type s3_srvr_2_alt.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 01:29:08, skipping insertion in model container [2018-07-25 13:29:08,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_2_alt.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 01:29:08" (2/2) ... [2018-07-25 13:29:08,990 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_2_alt.BV.c.cil.c_13.bpl [2018-07-25 13:29:08,999 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2018-07-25 13:29:09,006 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 13:29:09,049 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 13:29:09,050 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 13:29:09,050 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 13:29:09,050 INFO L376 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2018-07-25 13:29:09,051 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 13:29:09,051 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 13:29:09,051 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 13:29:09,051 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 13:29:09,051 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 13:29:09,064 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states. [2018-07-25 13:29:09,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-07-25 13:29:09,073 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:29:09,074 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 13:29:09,075 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:29:09,080 INFO L82 PathProgramCache]: Analyzing trace with hash 212232727, now seen corresponding path program 1 times [2018-07-25 13:29:09,087 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:29:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 13:29:09,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 13:29:09,220 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:29:09,220 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 13:29:09,224 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 13:29:09,237 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 13:29:09,238 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:09,241 INFO L87 Difference]: Start difference. First operand 11 states. Second operand 3 states. [2018-07-25 13:29:09,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:29:09,300 INFO L93 Difference]: Finished difference Result 26 states and 39 transitions. [2018-07-25 13:29:09,300 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 13:29:09,302 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-07-25 13:29:09,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:29:09,317 INFO L225 Difference]: With dead ends: 26 [2018-07-25 13:29:09,318 INFO L226 Difference]: Without dead ends: 16 [2018-07-25 13:29:09,321 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:09,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-07-25 13:29:09,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-07-25 13:29:09,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-07-25 13:29:09,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 23 transitions. [2018-07-25 13:29:09,363 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 23 transitions. Word has length 8 [2018-07-25 13:29:09,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:29:09,364 INFO L472 AbstractCegarLoop]: Abstraction has 16 states and 23 transitions. [2018-07-25 13:29:09,364 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 13:29:09,365 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 23 transitions. [2018-07-25 13:29:09,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-07-25 13:29:09,365 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:29:09,366 INFO L354 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 13:29:09,366 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:29:09,366 INFO L82 PathProgramCache]: Analyzing trace with hash -250815121, now seen corresponding path program 1 times [2018-07-25 13:29:09,367 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:29:09,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 13:29:09,457 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 13:29:09,458 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:29:09,458 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 13:29:09,462 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 13:29:09,462 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 13:29:09,462 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:09,463 INFO L87 Difference]: Start difference. First operand 16 states and 23 transitions. Second operand 3 states. [2018-07-25 13:29:09,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:29:09,534 INFO L93 Difference]: Finished difference Result 31 states and 45 transitions. [2018-07-25 13:29:09,534 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 13:29:09,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-07-25 13:29:09,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:29:09,537 INFO L225 Difference]: With dead ends: 31 [2018-07-25 13:29:09,537 INFO L226 Difference]: Without dead ends: 29 [2018-07-25 13:29:09,539 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:09,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-07-25 13:29:09,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2018-07-25 13:29:09,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2018-07-25 13:29:09,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 43 transitions. [2018-07-25 13:29:09,556 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 43 transitions. Word has length 11 [2018-07-25 13:29:09,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:29:09,558 INFO L472 AbstractCegarLoop]: Abstraction has 29 states and 43 transitions. [2018-07-25 13:29:09,558 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 13:29:09,559 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2018-07-25 13:29:09,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-07-25 13:29:09,561 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:29:09,561 INFO L354 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 13:29:09,561 INFO L415 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:29:09,562 INFO L82 PathProgramCache]: Analyzing trace with hash 180957294, now seen corresponding path program 1 times [2018-07-25 13:29:09,562 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:29:09,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 13:29:09,638 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-07-25 13:29:09,641 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:29:09,642 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 13:29:09,642 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 13:29:09,642 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 13:29:09,643 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:09,643 INFO L87 Difference]: Start difference. First operand 29 states and 43 transitions. Second operand 3 states. [2018-07-25 13:29:09,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:29:09,687 INFO L93 Difference]: Finished difference Result 65 states and 97 transitions. [2018-07-25 13:29:09,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 13:29:09,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2018-07-25 13:29:09,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:29:09,689 INFO L225 Difference]: With dead ends: 65 [2018-07-25 13:29:09,689 INFO L226 Difference]: Without dead ends: 37 [2018-07-25 13:29:09,693 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:09,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-07-25 13:29:09,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-07-25 13:29:09,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-07-25 13:29:09,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 51 transitions. [2018-07-25 13:29:09,717 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 51 transitions. Word has length 17 [2018-07-25 13:29:09,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:29:09,717 INFO L472 AbstractCegarLoop]: Abstraction has 37 states and 51 transitions. [2018-07-25 13:29:09,717 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 13:29:09,718 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 51 transitions. [2018-07-25 13:29:09,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-07-25 13:29:09,719 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:29:09,719 INFO L354 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 13:29:09,722 INFO L415 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:29:09,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1338834922, now seen corresponding path program 1 times [2018-07-25 13:29:09,723 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:29:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 13:29:09,778 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-07-25 13:29:09,778 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:29:09,779 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 13:29:09,779 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 13:29:09,780 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 13:29:09,780 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:09,780 INFO L87 Difference]: Start difference. First operand 37 states and 51 transitions. Second operand 3 states. [2018-07-25 13:29:09,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:29:09,833 INFO L93 Difference]: Finished difference Result 83 states and 117 transitions. [2018-07-25 13:29:09,834 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 13:29:09,834 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2018-07-25 13:29:09,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:29:09,836 INFO L225 Difference]: With dead ends: 83 [2018-07-25 13:29:09,836 INFO L226 Difference]: Without dead ends: 47 [2018-07-25 13:29:09,837 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:09,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-07-25 13:29:09,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 44. [2018-07-25 13:29:09,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-07-25 13:29:09,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2018-07-25 13:29:09,860 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 20 [2018-07-25 13:29:09,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:29:09,861 INFO L472 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2018-07-25 13:29:09,861 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 13:29:09,861 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2018-07-25 13:29:09,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-07-25 13:29:09,862 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:29:09,862 INFO L354 BasicCegarLoop]: trace histogram [4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 13:29:09,863 INFO L415 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:29:09,863 INFO L82 PathProgramCache]: Analyzing trace with hash -18544326, now seen corresponding path program 1 times [2018-07-25 13:29:09,863 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:29:09,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 13:29:09,934 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-07-25 13:29:09,934 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 13:29:09,934 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2018-07-25 13:29:09,935 INFO L451 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-25 13:29:09,935 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-25 13:29:09,936 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-25 13:29:09,936 INFO L87 Difference]: Start difference. First operand 44 states and 56 transitions. Second operand 5 states. [2018-07-25 13:29:10,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:29:10,010 INFO L93 Difference]: Finished difference Result 129 states and 166 transitions. [2018-07-25 13:29:10,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-25 13:29:10,011 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 21 [2018-07-25 13:29:10,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:29:10,013 INFO L225 Difference]: With dead ends: 129 [2018-07-25 13:29:10,013 INFO L226 Difference]: Without dead ends: 86 [2018-07-25 13:29:10,014 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-25 13:29:10,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2018-07-25 13:29:10,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 67. [2018-07-25 13:29:10,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2018-07-25 13:29:10,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 83 transitions. [2018-07-25 13:29:10,044 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 83 transitions. Word has length 21 [2018-07-25 13:29:10,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:29:10,044 INFO L472 AbstractCegarLoop]: Abstraction has 67 states and 83 transitions. [2018-07-25 13:29:10,049 INFO L473 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-25 13:29:10,049 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 83 transitions. [2018-07-25 13:29:10,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-07-25 13:29:10,052 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:29:10,052 INFO L354 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 13:29:10,053 INFO L415 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:29:10,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1570940154, now seen corresponding path program 1 times [2018-07-25 13:29:10,053 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:29:10,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 13:29:10,095 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2018-07-25 13:29:10,095 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:29:10,096 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 13:29:10,096 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 13:29:10,097 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 13:29:10,098 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:10,098 INFO L87 Difference]: Start difference. First operand 67 states and 83 transitions. Second operand 3 states. [2018-07-25 13:29:10,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:29:10,152 INFO L93 Difference]: Finished difference Result 137 states and 171 transitions. [2018-07-25 13:29:10,153 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 13:29:10,153 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2018-07-25 13:29:10,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:29:10,157 INFO L225 Difference]: With dead ends: 137 [2018-07-25 13:29:10,157 INFO L226 Difference]: Without dead ends: 71 [2018-07-25 13:29:10,158 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:10,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-07-25 13:29:10,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 69. [2018-07-25 13:29:10,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-07-25 13:29:10,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 86 transitions. [2018-07-25 13:29:10,185 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 86 transitions. Word has length 23 [2018-07-25 13:29:10,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:29:10,187 INFO L472 AbstractCegarLoop]: Abstraction has 69 states and 86 transitions. [2018-07-25 13:29:10,188 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 13:29:10,188 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 86 transitions. [2018-07-25 13:29:10,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-07-25 13:29:10,189 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:29:10,190 INFO L354 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 4, 2, 2, 1, 1, 1, 1, 1, 1] [2018-07-25 13:29:10,191 INFO L415 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:29:10,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1576186804, now seen corresponding path program 1 times [2018-07-25 13:29:10,192 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:29:10,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 13:29:10,235 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2018-07-25 13:29:10,236 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 13:29:10,236 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-07-25 13:29:10,237 INFO L451 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-07-25 13:29:10,237 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-07-25 13:29:10,237 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:10,239 INFO L87 Difference]: Start difference. First operand 69 states and 86 transitions. Second operand 3 states. [2018-07-25 13:29:10,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:29:10,274 INFO L93 Difference]: Finished difference Result 142 states and 178 transitions. [2018-07-25 13:29:10,275 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-07-25 13:29:10,275 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 36 [2018-07-25 13:29:10,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:29:10,276 INFO L225 Difference]: With dead ends: 142 [2018-07-25 13:29:10,276 INFO L226 Difference]: Without dead ends: 71 [2018-07-25 13:29:10,282 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-07-25 13:29:10,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-07-25 13:29:10,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-07-25 13:29:10,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-07-25 13:29:10,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 84 transitions. [2018-07-25 13:29:10,309 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 84 transitions. Word has length 36 [2018-07-25 13:29:10,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:29:10,310 INFO L472 AbstractCegarLoop]: Abstraction has 71 states and 84 transitions. [2018-07-25 13:29:10,310 INFO L473 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-07-25 13:29:10,310 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 84 transitions. [2018-07-25 13:29:10,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2018-07-25 13:29:10,312 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 13:29:10,312 INFO L354 BasicCegarLoop]: trace histogram [8, 7, 7, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2018-07-25 13:29:10,312 INFO L415 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 13:29:10,312 INFO L82 PathProgramCache]: Analyzing trace with hash -1527084167, now seen corresponding path program 1 times [2018-07-25 13:29:10,313 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 13:29:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-07-25 13:29:10,369 INFO L134 CoverageAnalysis]: Checked inductivity of 115 backedges. 85 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2018-07-25 13:29:10,370 INFO L309 seRefinementStrategy]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2018-07-25 13:29:10,370 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2018-07-25 13:29:10,370 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 13:29:10,371 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 13:29:10,371 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-07-25 13:29:10,371 INFO L87 Difference]: Start difference. First operand 71 states and 84 transitions. Second operand 4 states. [2018-07-25 13:29:10,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 13:29:10,443 INFO L93 Difference]: Finished difference Result 145 states and 172 transitions. [2018-07-25 13:29:10,443 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-25 13:29:10,443 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 43 [2018-07-25 13:29:10,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 13:29:10,444 INFO L225 Difference]: With dead ends: 145 [2018-07-25 13:29:10,444 INFO L226 Difference]: Without dead ends: 0 [2018-07-25 13:29:10,445 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-07-25 13:29:10,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-07-25 13:29:10,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-07-25 13:29:10,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-07-25 13:29:10,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-07-25 13:29:10,446 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2018-07-25 13:29:10,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 13:29:10,447 INFO L472 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-07-25 13:29:10,447 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 13:29:10,447 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-07-25 13:29:10,447 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-07-25 13:29:10,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-07-25 13:29:10,513 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 13:29:10,516 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 13:29:10,522 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 13:29:10,524 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 13:29:10,525 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-07-25 13:29:10,759 INFO L418 ceAbstractionStarter]: At program point L254(lines 254 270) the Hoare annotation is: (let ((.cse1 (not (= 8448 ULTIMATE.start_ssl3_accept_~s__state~4))) (.cse2 (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3)) (.cse0 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~4)))) (or (and (= ULTIMATE.start_ssl3_accept_~blastFlag~4 2) .cse0 .cse1) (and (not (= 8656 ULTIMATE.start_ssl3_accept_~s__state~4)) .cse2 .cse0 .cse1) (and (<= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~4) .cse2 .cse0) (= ULTIMATE.start_ssl3_accept_~blastFlag~4 1))) [2018-07-25 13:29:10,759 INFO L418 ceAbstractionStarter]: At program point L374(lines 374 381) the Hoare annotation is: false [2018-07-25 13:29:10,761 INFO L425 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(lines 2 383) the Hoare annotation is: true [2018-07-25 13:29:10,761 INFO L422 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(lines 2 383) no Hoare annotation was computed. [2018-07-25 13:29:10,761 INFO L422 ceAbstractionStarter]: For program point L309(lines 304 328) no Hoare annotation was computed. [2018-07-25 13:29:10,762 INFO L418 ceAbstractionStarter]: At program point ULTIMATE.startEXIT(lines 2 383) the Hoare annotation is: false [2018-07-25 13:29:10,762 INFO L418 ceAbstractionStarter]: At program point L351(lines 351 371) the Hoare annotation is: (and (not (= 8656 ULTIMATE.start_ssl3_accept_~s__state~4)) (<= 8656 ULTIMATE.start_ssl3_accept_~s__state~4) (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3)) [2018-07-25 13:29:10,764 INFO L418 ceAbstractionStarter]: At program point L380(lines 269 380) the Hoare annotation is: (let ((.cse0 (<= 8656 ULTIMATE.start_ssl3_accept_~s__state~4)) (.cse1 (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3))) (or (and .cse0 (= ULTIMATE.start_ssl3_accept_~blastFlag~4 2)) (and (<= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~4) .cse1 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~4))) (and (not (= 8656 ULTIMATE.start_ssl3_accept_~s__state~4)) .cse0 .cse1) (= ULTIMATE.start_ssl3_accept_~blastFlag~4 1))) [2018-07-25 13:29:10,764 INFO L422 ceAbstractionStarter]: For program point L343(lines 343 358) no Hoare annotation was computed. [2018-07-25 13:29:10,765 INFO L418 ceAbstractionStarter]: At program point L298(lines 298 317) the Hoare annotation is: (let ((.cse1 (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3)) (.cse0 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~4)))) (or (and (= ULTIMATE.start_ssl3_accept_~blastFlag~4 1) .cse0) (and (<= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~4) .cse1 .cse0) (and .cse1 .cse0 (not (= 8448 ULTIMATE.start_ssl3_accept_~s__state~4))))) [2018-07-25 13:29:10,765 INFO L422 ceAbstractionStarter]: For program point L360(lines 357 375) no Hoare annotation was computed. [2018-07-25 13:29:10,766 INFO L418 ceAbstractionStarter]: At program point L327(lines 327 344) the Hoare annotation is: (let ((.cse0 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~4))) (.cse1 (not (= 8448 ULTIMATE.start_ssl3_accept_~s__state~4)))) (or (and (not (= 8656 ULTIMATE.start_ssl3_accept_~s__state~4)) (not (= 8672 ULTIMATE.start_ssl3_accept_~s__state~4)) .cse0 .cse1) (and (and (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3) .cse0) .cse1))) [2018-07-25 13:29:10,766 INFO L418 ceAbstractionStarter]: At program point ULTIMATE.startErr0ASSERT_VIOLATIONASSERT(line 382) the Hoare annotation is: false [2018-07-25 13:29:10,766 INFO L422 ceAbstractionStarter]: For program point L286(lines 286 305) no Hoare annotation was computed. [2018-07-25 13:29:10,767 INFO L418 ceAbstractionStarter]: At program point L278(lines 241 278) the Hoare annotation is: (let ((.cse1 (not (= 8448 ULTIMATE.start_ssl3_accept_~s__state~4))) (.cse2 (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3)) (.cse0 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~4)))) (or (and (= ULTIMATE.start_ssl3_accept_~blastFlag~4 2) .cse0 .cse1) (and (not (= 8656 ULTIMATE.start_ssl3_accept_~s__state~4)) .cse2 .cse0 .cse1) (and (<= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~4) .cse2 .cse0) (= ULTIMATE.start_ssl3_accept_~blastFlag~4 1))) [2018-07-25 13:29:10,770 INFO L418 ceAbstractionStarter]: At program point L274(lines 274 287) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_ssl3_accept_~blastFlag~4 3)) (.cse1 (not (= 8496 ULTIMATE.start_ssl3_accept_~s__state~4)))) (or (and (<= 8640 ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~4) .cse0 .cse1) (and .cse0 .cse1 (not (= 8448 ULTIMATE.start_ssl3_accept_~s__state~4))) (= ULTIMATE.start_ssl3_accept_~blastFlag~4 1))) [2018-07-25 13:29:10,789 INFO L202 PluginConnector]: Adding new model s3_srvr_2_alt.BV.c.cil.c_13.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 01:29:10 BoogieIcfgContainer [2018-07-25 13:29:10,790 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 13:29:10,791 INFO L168 Benchmark]: Toolchain (without parser) took 2369.51 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 158.5 MB). Peak memory consumption was 158.5 MB. Max. memory is 7.1 GB. [2018-07-25 13:29:10,795 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 13:29:10,796 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.52 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 13:29:10,797 INFO L168 Benchmark]: Boogie Preprocessor took 31.41 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 13:29:10,798 INFO L168 Benchmark]: RCFGBuilder took 474.55 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2018-07-25 13:29:10,799 INFO L168 Benchmark]: TraceAbstraction took 1808.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2018-07-25 13:29:10,805 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 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.52 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.41 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 474.55 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1808.18 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 137.4 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 382]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 298]: Loop Invariant Derived loop invariant: ((ssl3_accept_~blastFlag~4 == 1 && !(8496 == ssl3_accept_~s__state~4)) || ((8640 <= ssl3_accept_~s__s3__tmp__next_state___0~4 && ssl3_accept_~blastFlag~4 <= 3) && !(8496 == ssl3_accept_~s__state~4))) || ((ssl3_accept_~blastFlag~4 <= 3 && !(8496 == ssl3_accept_~s__state~4)) && !(8448 == ssl3_accept_~s__state~4)) - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: ((((ssl3_accept_~blastFlag~4 == 2 && !(8496 == ssl3_accept_~s__state~4)) && !(8448 == ssl3_accept_~s__state~4)) || (((!(8656 == ssl3_accept_~s__state~4) && ssl3_accept_~blastFlag~4 <= 3) && !(8496 == ssl3_accept_~s__state~4)) && !(8448 == ssl3_accept_~s__state~4))) || ((8640 <= ssl3_accept_~s__s3__tmp__next_state___0~4 && ssl3_accept_~blastFlag~4 <= 3) && !(8496 == ssl3_accept_~s__state~4))) || ssl3_accept_~blastFlag~4 == 1 - InvariantResult [Line: 327]: Loop Invariant Derived loop invariant: (((!(8656 == ssl3_accept_~s__state~4) && !(8672 == ssl3_accept_~s__state~4)) && !(8496 == ssl3_accept_~s__state~4)) && !(8448 == ssl3_accept_~s__state~4)) || ((ssl3_accept_~blastFlag~4 <= 3 && !(8496 == ssl3_accept_~s__state~4)) && !(8448 == ssl3_accept_~s__state~4)) - InvariantResult [Line: 269]: Loop Invariant Derived loop invariant: (((8656 <= ssl3_accept_~s__state~4 && ssl3_accept_~blastFlag~4 == 2) || ((8640 <= ssl3_accept_~s__s3__tmp__next_state___0~4 && ssl3_accept_~blastFlag~4 <= 3) && !(8496 == ssl3_accept_~s__state~4))) || ((!(8656 == ssl3_accept_~s__state~4) && 8656 <= ssl3_accept_~s__state~4) && ssl3_accept_~blastFlag~4 <= 3)) || ssl3_accept_~blastFlag~4 == 1 - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: (((8640 <= ssl3_accept_~s__s3__tmp__next_state___0~4 && ssl3_accept_~blastFlag~4 <= 3) && !(8496 == ssl3_accept_~s__state~4)) || ((ssl3_accept_~blastFlag~4 <= 3 && !(8496 == ssl3_accept_~s__state~4)) && !(8448 == ssl3_accept_~s__state~4))) || ssl3_accept_~blastFlag~4 == 1 - InvariantResult [Line: 374]: Loop Invariant Derived loop invariant: false - InvariantResult [Line: 254]: Loop Invariant Derived loop invariant: ((((ssl3_accept_~blastFlag~4 == 2 && !(8496 == ssl3_accept_~s__state~4)) && !(8448 == ssl3_accept_~s__state~4)) || (((!(8656 == ssl3_accept_~s__state~4) && ssl3_accept_~blastFlag~4 <= 3) && !(8496 == ssl3_accept_~s__state~4)) && !(8448 == ssl3_accept_~s__state~4))) || ((8640 <= ssl3_accept_~s__s3__tmp__next_state___0~4 && ssl3_accept_~blastFlag~4 <= 3) && !(8496 == ssl3_accept_~s__state~4))) || ssl3_accept_~blastFlag~4 == 1 - InvariantResult [Line: 351]: Loop Invariant Derived loop invariant: (!(8656 == ssl3_accept_~s__state~4) && 8656 <= ssl3_accept_~s__state~4) && ssl3_accept_~blastFlag~4 <= 3 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. SAFE Result, 1.7s OverallTime, 8 OverallIterations, 8 TraceHistogramMax, 0.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 98 SDtfs, 37 SDslu, 61 SDs, 0 SdLazy, 137 SolverSat, 31 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=71occurred in iteration=7, 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: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 24 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 11 PreInvPairs, 92 NumberOfFragments, 224 HoareAnnotationTreeSize, 11 FomulaSimplifications, 1667 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 11 FomulaSimplificationsInter, 615 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 171 ConstructedInterpolants, 0 QuantifiedInterpolants, 7443 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 6 PerfectInterpolantSequences, 246/264 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_srvr_2_alt.BV.c.cil.c_13.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_13-29-10-841.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_srvr_2_alt.BV.c.cil.c_13.bpl_AutomizerBpl-nestedInterpolants.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_13-29-10-841.csv Received shutdown request...