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-pdr-smtinterpol.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_1.cil.c_23.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 14:52:22,492 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 14:52:22,495 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 14:52:22,515 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 14:52:22,515 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 14:52:22,517 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 14:52:22,521 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 14:52:22,524 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 14:52:22,528 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 14:52:22,531 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 14:52:22,532 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 14:52:22,533 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 14:52:22,536 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 14:52:22,537 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 14:52:22,538 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 14:52:22,541 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 14:52:22,542 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 14:52:22,551 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 14:52:22,554 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 14:52:22,556 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 14:52:22,557 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 14:52:22,559 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 14:52:22,561 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 14:52:22,562 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 14:52:22,562 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 14:52:22,563 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 14:52:22,564 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 14:52:22,565 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 14:52:22,566 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 14:52:22,567 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 14:52:22,568 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 14:52:22,568 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-07-25 14:52:22,571 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-smtinterpol.epf [2018-07-25 14:52:22,587 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 14:52:22,588 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 14:52:22,592 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-07-25 14:52:22,593 INFO L133 SettingsManager]: * SMT solver=Internal_SMTInterpol [2018-07-25 14:52:22,593 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 14:52:22,593 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 14:52:22,593 INFO L133 SettingsManager]: * Use separate solver for trace checks=false [2018-07-25 14:52:22,594 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 14:52:22,674 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 14:52:22,693 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 14:52:22,698 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 14:52:22,700 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 14:52:22,701 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 14:52:22,702 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_1.cil.c_23.bpl [2018-07-25 14:52:22,702 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_1.cil.c_23.bpl' [2018-07-25 14:52:22,826 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 14:52:22,828 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 14:52:22,829 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 14:52:22,829 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 14:52:22,829 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 14:52:22,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:22" (1/1) ... [2018-07-25 14:52:22,884 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:22" (1/1) ... [2018-07-25 14:52:22,894 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 14:52:22,895 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 14:52:22,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 14:52:22,896 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 14:52:22,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:22" (1/1) ... [2018-07-25 14:52:22,904 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:22" (1/1) ... [2018-07-25 14:52:22,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:22" (1/1) ... [2018-07-25 14:52:22,909 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:22" (1/1) ... [2018-07-25 14:52:22,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:22" (1/1) ... [2018-07-25 14:52:22,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:22" (1/1) ... [2018-07-25 14:52:22,934 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:22" (1/1) ... [2018-07-25 14:52:22,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 14:52:22,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 14:52:22,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 14:52:22,941 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 14:52:22,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:22" (1/1) ... [2018-07-25 14:52:23,035 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 14:52:23,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 14:52:23,485 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 14:52:23,486 INFO L202 PluginConnector]: Adding new model s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:52:23 BoogieIcfgContainer [2018-07-25 14:52:23,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 14:52:23,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 14:52:23,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 14:52:23,492 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 14:52:23,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.07 02:52:22" (1/2) ... [2018-07-25 14:52:23,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3df73d6d and model type s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 02:52:23, skipping insertion in model container [2018-07-25 14:52:23,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:52:23" (2/2) ... [2018-07-25 14:52:23,497 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_1.cil.c_23.bpl [2018-07-25 14:52:23,508 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 14:52:23,522 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 14:52:23,575 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 14:52:23,576 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 14:52:23,576 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 14:52:23,577 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 14:52:23,577 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 14:52:23,577 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 14:52:23,577 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 14:52:23,578 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 14:52:23,578 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 14:52:23,600 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-07-25 14:52:23,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-07-25 14:52:23,613 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:52:23,615 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:52:23,617 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:52:23,623 INFO L82 PathProgramCache]: Analyzing trace with hash 1511424245, now seen corresponding path program 1 times [2018-07-25 14:52:23,630 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:52:24,257 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:52:24,258 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 14:52:24,266 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 14:52:24,274 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 14:52:24,275 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-25 14:52:24,278 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 4 states. [2018-07-25 14:52:24,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:52:24,452 INFO L93 Difference]: Finished difference Result 51 states and 87 transitions. [2018-07-25 14:52:24,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 14:52:24,454 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-07-25 14:52:24,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:52:24,473 INFO L225 Difference]: With dead ends: 51 [2018-07-25 14:52:24,476 INFO L226 Difference]: Without dead ends: 48 [2018-07-25 14:52:24,481 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 1010 GetRequests, 994 SyntacticMatches, 12 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-25 14:52:24,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-07-25 14:52:24,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-07-25 14:52:24,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-07-25 14:52:24,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 83 transitions. [2018-07-25 14:52:24,555 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 83 transitions. Word has length 16 [2018-07-25 14:52:24,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:52:24,555 INFO L472 AbstractCegarLoop]: Abstraction has 48 states and 83 transitions. [2018-07-25 14:52:24,556 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 14:52:24,556 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2018-07-25 14:52:24,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-07-25 14:52:24,559 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:52:24,559 INFO L354 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:52:24,561 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:52:24,561 INFO L82 PathProgramCache]: Analyzing trace with hash -478818365, now seen corresponding path program 1 times [2018-07-25 14:52:24,561 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:52:25,514 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:52:25,514 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 14:52:25,516 INFO L451 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-25 14:52:25,516 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-25 14:52:25,517 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-07-25 14:52:25,517 INFO L87 Difference]: Start difference. First operand 48 states and 83 transitions. Second operand 6 states. [2018-07-25 14:52:25,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:52:25,645 INFO L93 Difference]: Finished difference Result 65 states and 112 transitions. [2018-07-25 14:52:25,645 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-25 14:52:25,645 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2018-07-25 14:52:25,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:52:25,648 INFO L225 Difference]: With dead ends: 65 [2018-07-25 14:52:25,649 INFO L226 Difference]: Without dead ends: 63 [2018-07-25 14:52:25,651 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 3516 GetRequests, 3488 SyntacticMatches, 18 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-07-25 14:52:25,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-07-25 14:52:25,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 48. [2018-07-25 14:52:25,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-07-25 14:52:25,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 83 transitions. [2018-07-25 14:52:25,674 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 83 transitions. Word has length 39 [2018-07-25 14:52:25,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:52:25,674 INFO L472 AbstractCegarLoop]: Abstraction has 48 states and 83 transitions. [2018-07-25 14:52:25,675 INFO L473 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-25 14:52:25,675 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2018-07-25 14:52:25,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-07-25 14:52:25,677 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:52:25,677 INFO L354 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:52:25,678 INFO L415 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:52:25,678 INFO L82 PathProgramCache]: Analyzing trace with hash -145316145, now seen corresponding path program 1 times [2018-07-25 14:52:25,679 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:52:27,173 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:52:27,174 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 14:52:27,175 INFO L451 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-25 14:52:27,175 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-25 14:52:27,175 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-07-25 14:52:27,177 INFO L87 Difference]: Start difference. First operand 48 states and 83 transitions. Second operand 5 states. [2018-07-25 14:52:27,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:52:27,336 INFO L93 Difference]: Finished difference Result 80 states and 139 transitions. [2018-07-25 14:52:27,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-25 14:52:27,337 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2018-07-25 14:52:27,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:52:27,339 INFO L225 Difference]: With dead ends: 80 [2018-07-25 14:52:27,339 INFO L226 Difference]: Without dead ends: 78 [2018-07-25 14:52:27,341 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 5856 GetRequests, 5823 SyntacticMatches, 23 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-07-25 14:52:27,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-07-25 14:52:27,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 69. [2018-07-25 14:52:27,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-07-25 14:52:27,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 121 transitions. [2018-07-25 14:52:27,367 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 121 transitions. Word has length 44 [2018-07-25 14:52:27,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:52:27,369 INFO L472 AbstractCegarLoop]: Abstraction has 69 states and 121 transitions. [2018-07-25 14:52:27,369 INFO L473 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-25 14:52:27,370 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 121 transitions. [2018-07-25 14:52:27,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-07-25 14:52:27,372 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:52:27,372 INFO L354 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:52:27,372 INFO L415 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:52:27,373 INFO L82 PathProgramCache]: Analyzing trace with hash -1051119547, now seen corresponding path program 1 times [2018-07-25 14:52:27,373 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:52:33,409 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:52:33,409 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 14:52:33,410 INFO L451 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-25 14:52:33,410 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-25 14:52:33,411 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2018-07-25 14:52:33,411 INFO L87 Difference]: Start difference. First operand 69 states and 121 transitions. Second operand 6 states. [2018-07-25 14:52:33,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:52:33,533 INFO L93 Difference]: Finished difference Result 101 states and 177 transitions. [2018-07-25 14:52:33,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-25 14:52:33,533 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2018-07-25 14:52:33,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:52:33,535 INFO L225 Difference]: With dead ends: 101 [2018-07-25 14:52:33,535 INFO L226 Difference]: Without dead ends: 99 [2018-07-25 14:52:33,536 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14317 GetRequests, 14262 SyntacticMatches, 36 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2018-07-25 14:52:33,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-07-25 14:52:33,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 61. [2018-07-25 14:52:33,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-07-25 14:52:33,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 107 transitions. [2018-07-25 14:52:33,552 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 107 transitions. Word has length 52 [2018-07-25 14:52:33,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:52:33,553 INFO L472 AbstractCegarLoop]: Abstraction has 61 states and 107 transitions. [2018-07-25 14:52:33,553 INFO L473 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-25 14:52:33,553 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 107 transitions. [2018-07-25 14:52:33,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-07-25 14:52:33,555 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:52:33,555 INFO L354 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:52:33,555 INFO L415 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:52:33,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1556916008, now seen corresponding path program 1 times [2018-07-25 14:52:33,556 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:52:38,815 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:52:38,816 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 14:52:38,816 INFO L451 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-25 14:52:38,816 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-25 14:52:38,817 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2018-07-25 14:52:38,817 INFO L87 Difference]: Start difference. First operand 61 states and 107 transitions. Second operand 6 states. [2018-07-25 14:52:38,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:52:38,953 INFO L93 Difference]: Finished difference Result 119 states and 210 transitions. [2018-07-25 14:52:38,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-25 14:52:38,954 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2018-07-25 14:52:38,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:52:38,956 INFO L225 Difference]: With dead ends: 119 [2018-07-25 14:52:38,956 INFO L226 Difference]: Without dead ends: 117 [2018-07-25 14:52:38,957 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 15982 GetRequests, 15935 SyntacticMatches, 33 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2018-07-25 14:52:38,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-07-25 14:52:39,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 107. [2018-07-25 14:52:39,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-07-25 14:52:39,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 191 transitions. [2018-07-25 14:52:39,007 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 191 transitions. Word has length 56 [2018-07-25 14:52:39,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:52:39,007 INFO L472 AbstractCegarLoop]: Abstraction has 107 states and 191 transitions. [2018-07-25 14:52:39,010 INFO L473 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-25 14:52:39,010 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 191 transitions. [2018-07-25 14:52:39,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-07-25 14:52:39,016 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:52:39,016 INFO L354 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:52:39,016 INFO L415 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:52:39,017 INFO L82 PathProgramCache]: Analyzing trace with hash 1118744478, now seen corresponding path program 1 times [2018-07-25 14:52:39,017 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:52:57,039 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:52:57,039 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-25 14:52:57,040 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 14:52:57,040 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 14:52:57,041 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=624, Unknown=0, NotChecked=0, Total=870 [2018-07-25 14:52:57,042 INFO L87 Difference]: Start difference. First operand 107 states and 191 transitions. Second operand 7 states. [2018-07-25 14:52:57,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:52:57,250 INFO L93 Difference]: Finished difference Result 155 states and 275 transitions. [2018-07-25 14:52:57,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-25 14:52:57,251 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2018-07-25 14:52:57,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:52:57,253 INFO L225 Difference]: With dead ends: 155 [2018-07-25 14:52:57,253 INFO L226 Difference]: Without dead ends: 153 [2018-07-25 14:52:57,254 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 36468 GetRequests, 36389 SyntacticMatches, 51 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1005 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=246, Invalid=624, Unknown=0, NotChecked=0, Total=870 [2018-07-25 14:52:57,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-07-25 14:52:57,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 86. [2018-07-25 14:52:57,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-07-25 14:52:57,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 153 transitions. [2018-07-25 14:52:57,282 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 153 transitions. Word has length 64 [2018-07-25 14:52:57,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:52:57,283 INFO L472 AbstractCegarLoop]: Abstraction has 86 states and 153 transitions. [2018-07-25 14:52:57,283 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 14:52:57,283 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 153 transitions. [2018-07-25 14:52:57,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-07-25 14:52:57,284 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:52:57,284 INFO L354 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:52:57,285 INFO L415 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:52:57,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1764571200, now seen corresponding path program 1 times [2018-07-25 14:52:57,285 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:53:09,625 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:53:09,626 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-25 14:53:09,627 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 14:53:09,627 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 14:53:09,627 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2018-07-25 14:53:09,628 INFO L87 Difference]: Start difference. First operand 86 states and 153 transitions. Second operand 7 states. [2018-07-25 14:53:09,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:53:09,788 INFO L93 Difference]: Finished difference Result 156 states and 278 transitions. [2018-07-25 14:53:09,788 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-25 14:53:09,789 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 67 [2018-07-25 14:53:09,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:53:09,790 INFO L225 Difference]: With dead ends: 156 [2018-07-25 14:53:09,791 INFO L226 Difference]: Without dead ends: 154 [2018-07-25 14:53:09,792 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 32978 GetRequests, 32918 SyntacticMatches, 42 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2018-07-25 14:53:09,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-07-25 14:53:09,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 143. [2018-07-25 14:53:09,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-07-25 14:53:09,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 257 transitions. [2018-07-25 14:53:09,854 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 257 transitions. Word has length 67 [2018-07-25 14:53:09,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:53:09,854 INFO L472 AbstractCegarLoop]: Abstraction has 143 states and 257 transitions. [2018-07-25 14:53:09,854 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 14:53:09,855 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 257 transitions. [2018-07-25 14:53:09,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-07-25 14:53:09,856 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:53:09,857 INFO L354 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:53:09,857 INFO L415 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:53:09,857 INFO L82 PathProgramCache]: Analyzing trace with hash 2065197578, now seen corresponding path program 1 times [2018-07-25 14:53:09,857 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:54:01,946 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:54:01,947 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-07-25 14:54:01,947 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 14:54:01,948 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 14:54:01,949 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=413, Invalid=1069, Unknown=0, NotChecked=0, Total=1482 [2018-07-25 14:54:01,949 INFO L87 Difference]: Start difference. First operand 143 states and 257 transitions. Second operand 8 states. [2018-07-25 14:54:02,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:54:02,148 INFO L93 Difference]: Finished difference Result 219 states and 392 transitions. [2018-07-25 14:54:02,149 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-25 14:54:02,149 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 75 [2018-07-25 14:54:02,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:54:02,151 INFO L225 Difference]: With dead ends: 219 [2018-07-25 14:54:02,151 INFO L226 Difference]: Without dead ends: 217 [2018-07-25 14:54:02,152 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 72947 GetRequests, 72843 SyntacticMatches, 67 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1794 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=413, Invalid=1069, Unknown=0, NotChecked=0, Total=1482 [2018-07-25 14:54:02,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2018-07-25 14:54:02,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 110. [2018-07-25 14:54:02,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-07-25 14:54:02,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 197 transitions. [2018-07-25 14:54:02,189 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 197 transitions. Word has length 75 [2018-07-25 14:54:02,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:54:02,190 INFO L472 AbstractCegarLoop]: Abstraction has 110 states and 197 transitions. [2018-07-25 14:54:02,190 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 14:54:02,190 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 197 transitions. [2018-07-25 14:54:02,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-07-25 14:54:02,191 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:54:02,192 INFO L354 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:54:02,192 INFO L415 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:54:02,192 INFO L82 PathProgramCache]: Analyzing trace with hash -1870365168, now seen corresponding path program 1 times [2018-07-25 14:54:02,192 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:54:26,835 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:54:26,835 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-07-25 14:54:26,836 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 14:54:26,836 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 14:54:26,836 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2018-07-25 14:54:26,837 INFO L87 Difference]: Start difference. First operand 110 states and 197 transitions. Second operand 8 states. [2018-07-25 14:54:26,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:54:26,994 INFO L93 Difference]: Finished difference Result 204 states and 366 transitions. [2018-07-25 14:54:26,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-25 14:54:26,995 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 77 [2018-07-25 14:54:26,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:54:26,996 INFO L225 Difference]: With dead ends: 204 [2018-07-25 14:54:26,996 INFO L226 Difference]: Without dead ends: 202 [2018-07-25 14:54:26,997 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 57596 GetRequests, 57524 SyntacticMatches, 50 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2018-07-25 14:54:26,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2018-07-25 14:54:27,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 189. [2018-07-25 14:54:27,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2018-07-25 14:54:27,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 341 transitions. [2018-07-25 14:54:27,064 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 341 transitions. Word has length 77 [2018-07-25 14:54:27,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:54:27,064 INFO L472 AbstractCegarLoop]: Abstraction has 189 states and 341 transitions. [2018-07-25 14:54:27,064 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 14:54:27,064 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 341 transitions. [2018-07-25 14:54:27,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-07-25 14:54:27,066 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:54:27,066 INFO L354 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:54:27,066 INFO L415 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:54:27,067 INFO L82 PathProgramCache]: Analyzing trace with hash -1151632550, now seen corresponding path program 1 times [2018-07-25 14:54:27,067 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:56:17,747 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:56:17,748 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-07-25 14:56:17,748 INFO L451 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-25 14:56:17,748 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-25 14:56:17,749 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=623, Invalid=1633, Unknown=0, NotChecked=0, Total=2256 [2018-07-25 14:56:17,750 INFO L87 Difference]: Start difference. First operand 189 states and 341 transitions. Second operand 9 states. [2018-07-25 14:56:18,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:56:18,004 INFO L93 Difference]: Finished difference Result 305 states and 549 transitions. [2018-07-25 14:56:18,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-25 14:56:18,005 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2018-07-25 14:56:18,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:56:18,007 INFO L225 Difference]: With dead ends: 305 [2018-07-25 14:56:18,007 INFO L226 Difference]: Without dead ends: 303 [2018-07-25 14:56:18,009 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 125506 GetRequests, 125379 SyntacticMatches, 81 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2762 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=623, Invalid=1633, Unknown=0, NotChecked=0, Total=2256 [2018-07-25 14:56:18,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2018-07-25 14:56:18,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 145. [2018-07-25 14:56:18,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-07-25 14:56:18,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 261 transitions. [2018-07-25 14:56:18,059 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 261 transitions. Word has length 85 [2018-07-25 14:56:18,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:56:18,059 INFO L472 AbstractCegarLoop]: Abstraction has 145 states and 261 transitions. [2018-07-25 14:56:18,059 INFO L473 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-25 14:56:18,060 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 261 transitions. [2018-07-25 14:56:18,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-07-25 14:56:18,061 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:56:18,061 INFO L354 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:56:18,061 INFO L415 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:56:18,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1384025266, now seen corresponding path program 1 times [2018-07-25 14:56:18,061 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy Received shutdown request... [2018-07-25 14:56:49,092 WARN L541 AbstractCegarLoop]: Verification canceled [2018-07-25 14:56:49,097 WARN L202 ceAbstractionStarter]: Timeout [2018-07-25 14:56:49,097 INFO L202 PluginConnector]: Adding new model s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 02:56:49 BoogieIcfgContainer [2018-07-25 14:56:49,098 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 14:56:49,099 INFO L168 Benchmark]: Toolchain (without parser) took 266272.22 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 82.8 MB). Free memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: 2.5 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. [2018-07-25 14:56:49,101 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.23 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 14:56:49,101 INFO L168 Benchmark]: Boogie Procedure Inliner took 66.35 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 14:56:49,102 INFO L168 Benchmark]: Boogie Preprocessor took 44.40 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-07-25 14:56:49,103 INFO L168 Benchmark]: RCFGBuilder took 547.03 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. [2018-07-25 14:56:49,104 INFO L168 Benchmark]: TraceAbstraction took 265609.22 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 82.8 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -18.6 MB). Peak memory consumption was 64.2 MB. Max. memory is 7.1 GB. [2018-07-25 14:56:49,108 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 0.23 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 66.35 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 44.40 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 547.03 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 265609.22 ms. Allocated memory was 1.5 GB in the beginning and 1.6 GB in the end (delta: 82.8 MB). Free memory was 1.4 GB in the beginning and 1.5 GB in the end (delta: -18.6 MB). Peak memory consumption was 64.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 516]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 516). Cancelled while BasicCegarLoop was analyzing trace of length 87 with TraceHistMax 7, while Pdr was Timeout or canceled while running Pdr. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. TIMEOUT Result, 265.5s OverallTime, 11 OverallIterations, 7 TraceHistogramMax, 1.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 250 SDtfs, 807 SDslu, 45 SDs, 0 SdLazy, 927 SolverSat, 518 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 366176 GetRequests, 365555 SyntacticMatches, 413 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7470 ImplicationChecksByTransitivity, 5.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=189occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 428 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 232.0s PdrRuntime, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_srvr_1.cil.c_23.bpl_AutomizerBpl-pdr-smtinterpol.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_14-56-49-120.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_srvr_1.cil.c_23.bpl_AutomizerBpl-pdr-smtinterpol.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_14-56-49-120.csv Completed graceful shutdown