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-z3.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_1.cil.c_23.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-e6fd87c [2018-07-25 14:14:46,414 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-07-25 14:14:46,418 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-07-25 14:14:46,437 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-07-25 14:14:46,438 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-07-25 14:14:46,439 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-07-25 14:14:46,440 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-07-25 14:14:46,442 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-07-25 14:14:46,443 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-07-25 14:14:46,444 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-07-25 14:14:46,445 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-07-25 14:14:46,446 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-07-25 14:14:46,447 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-07-25 14:14:46,447 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-07-25 14:14:46,449 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-07-25 14:14:46,449 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-07-25 14:14:46,450 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-07-25 14:14:46,452 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-07-25 14:14:46,454 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-07-25 14:14:46,456 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-07-25 14:14:46,457 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-07-25 14:14:46,458 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-07-25 14:14:46,461 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-07-25 14:14:46,461 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-07-25 14:14:46,461 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-07-25 14:14:46,462 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-07-25 14:14:46,463 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-07-25 14:14:46,464 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-07-25 14:14:46,468 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-07-25 14:14:46,469 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-07-25 14:14:46,469 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-07-25 14:14:46,470 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-07-25 14:14:46,470 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-07-25 14:14:46,470 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-07-25 14:14:46,473 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-07-25 14:14:46,475 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-07-25 14:14:46,475 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf [2018-07-25 14:14:46,492 INFO L110 SettingsManager]: Loading preferences was successful [2018-07-25 14:14:46,492 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-07-25 14:14:46,494 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-07-25 14:14:46,494 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-07-25 14:14:46,494 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-07-25 14:14:46,494 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:14:46,494 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-07-25 14:14:46,547 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-07-25 14:14:46,561 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-07-25 14:14:46,565 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-07-25 14:14:46,566 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-07-25 14:14:46,566 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-07-25 14:14:46,567 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_1.cil.c_23.bpl [2018-07-25 14:14:46,567 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_1.cil.c_23.bpl' [2018-07-25 14:14:46,647 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-07-25 14:14:46,649 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-07-25 14:14:46,650 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-07-25 14:14:46,650 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-07-25 14:14:46,650 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-07-25 14:14:46,671 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 02:14:46" (1/1) ... [2018-07-25 14:14:46,690 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 02:14:46" (1/1) ... [2018-07-25 14:14:46,697 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-07-25 14:14:46,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-07-25 14:14:46,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-07-25 14:14:46,698 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-07-25 14:14:46,710 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 02:14:46" (1/1) ... [2018-07-25 14:14:46,710 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 02:14:46" (1/1) ... [2018-07-25 14:14:46,714 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 02:14:46" (1/1) ... [2018-07-25 14:14:46,714 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 02:14:46" (1/1) ... [2018-07-25 14:14:46,731 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 02:14:46" (1/1) ... [2018-07-25 14:14:46,738 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 02:14:46" (1/1) ... [2018-07-25 14:14:46,743 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 02:14:46" (1/1) ... [2018-07-25 14:14:46,755 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-07-25 14:14:46,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-07-25 14:14:46,757 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-07-25 14:14:46,758 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-07-25 14:14:46,759 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 02:14:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2018-07-25 14:14:46,843 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-07-25 14:14:46,843 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-07-25 14:14:47,667 INFO L273 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-07-25 14:14:47,667 INFO L202 PluginConnector]: Adding new model s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.07 02:14:47 BoogieIcfgContainer [2018-07-25 14:14:47,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-07-25 14:14:47,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-07-25 14:14:47,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-07-25 14:14:47,672 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-07-25 14:14:47,672 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 02:14:46" (1/2) ... [2018-07-25 14:14:47,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48c58fea and model type s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.07 02:14:47, skipping insertion in model container [2018-07-25 14:14:47,673 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 02:14:47" (2/2) ... [2018-07-25 14:14:47,675 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_1.cil.c_23.bpl [2018-07-25 14:14:47,684 INFO L133 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-07-25 14:14:47,693 INFO L145 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-07-25 14:14:47,734 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2018-07-25 14:14:47,735 INFO L374 AbstractCegarLoop]: Interprodecural is true [2018-07-25 14:14:47,735 INFO L375 AbstractCegarLoop]: Hoare is true [2018-07-25 14:14:47,736 INFO L376 AbstractCegarLoop]: Compute interpolants for PDR [2018-07-25 14:14:47,736 INFO L377 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-07-25 14:14:47,736 INFO L378 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-07-25 14:14:47,736 INFO L379 AbstractCegarLoop]: Difference is false [2018-07-25 14:14:47,736 INFO L380 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-07-25 14:14:47,736 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-07-25 14:14:47,752 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-07-25 14:14:47,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-07-25 14:14:47,761 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:14:47,762 INFO L354 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-07-25 14:14:47,763 INFO L415 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:14:47,769 INFO L82 PathProgramCache]: Analyzing trace with hash 1511424245, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:14:47,787 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:14:48,248 WARN L169 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2018-07-25 14:14:49,288 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:14:49,289 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-07-25 14:14:49,294 INFO L451 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-07-25 14:14:49,302 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-07-25 14:14:49,302 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-25 14:14:49,305 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 4 states. [2018-07-25 14:14:49,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:14:49,932 INFO L93 Difference]: Finished difference Result 51 states and 87 transitions. [2018-07-25 14:14:49,933 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-07-25 14:14:49,935 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2018-07-25 14:14:49,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:14:49,950 INFO L225 Difference]: With dead ends: 51 [2018-07-25 14:14:49,951 INFO L226 Difference]: Without dead ends: 48 [2018-07-25 14:14:49,955 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 1010 GetRequests, 994 SyntacticMatches, 12 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-07-25 14:14:49,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2018-07-25 14:14:49,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2018-07-25 14:14:49,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-07-25 14:14:50,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 83 transitions. [2018-07-25 14:14:50,003 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 83 transitions. Word has length 16 [2018-07-25 14:14:50,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:14:50,004 INFO L472 AbstractCegarLoop]: Abstraction has 48 states and 83 transitions. [2018-07-25 14:14:50,004 INFO L473 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-07-25 14:14:50,005 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2018-07-25 14:14:50,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2018-07-25 14:14:50,006 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:14:50,007 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 14:14:50,007 INFO L415 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:14:50,008 INFO L82 PathProgramCache]: Analyzing trace with hash -478818365, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:14:50,025 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:14:51,290 WARN L169 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 24 [2018-07-25 14:14:52,713 WARN L169 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 29 [2018-07-25 14:14:52,874 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:14:52,874 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 14:14:52,875 INFO L451 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-25 14:14:52,876 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-25 14:14:52,876 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-07-25 14:14:52,876 INFO L87 Difference]: Start difference. First operand 48 states and 83 transitions. Second operand 6 states. [2018-07-25 14:14:53,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:14:53,269 INFO L93 Difference]: Finished difference Result 65 states and 112 transitions. [2018-07-25 14:14:53,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-25 14:14:53,274 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2018-07-25 14:14:53,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:14:53,276 INFO L225 Difference]: With dead ends: 65 [2018-07-25 14:14:53,276 INFO L226 Difference]: Without dead ends: 63 [2018-07-25 14:14:53,278 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 3516 GetRequests, 3488 SyntacticMatches, 18 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-07-25 14:14:53,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2018-07-25 14:14:53,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 48. [2018-07-25 14:14:53,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-07-25 14:14:53,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 83 transitions. [2018-07-25 14:14:53,297 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 83 transitions. Word has length 39 [2018-07-25 14:14:53,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:14:53,297 INFO L472 AbstractCegarLoop]: Abstraction has 48 states and 83 transitions. [2018-07-25 14:14:53,298 INFO L473 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-25 14:14:53,298 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 83 transitions. [2018-07-25 14:14:53,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-07-25 14:14:53,299 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:14:53,299 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 14:14:53,300 INFO L415 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:14:53,301 INFO L82 PathProgramCache]: Analyzing trace with hash -145316145, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:14:53,309 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:14:55,071 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:14:55,072 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-07-25 14:14:55,072 INFO L451 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-07-25 14:14:55,072 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-07-25 14:14:55,073 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-07-25 14:14:55,074 INFO L87 Difference]: Start difference. First operand 48 states and 83 transitions. Second operand 5 states. [2018-07-25 14:14:55,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:14:55,294 INFO L93 Difference]: Finished difference Result 80 states and 139 transitions. [2018-07-25 14:14:55,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-25 14:14:55,295 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2018-07-25 14:14:55,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:14:55,298 INFO L225 Difference]: With dead ends: 80 [2018-07-25 14:14:55,298 INFO L226 Difference]: Without dead ends: 78 [2018-07-25 14:14:55,299 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 5856 GetRequests, 5823 SyntacticMatches, 23 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-07-25 14:14:55,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2018-07-25 14:14:55,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 69. [2018-07-25 14:14:55,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2018-07-25 14:14:55,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 121 transitions. [2018-07-25 14:14:55,325 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 121 transitions. Word has length 44 [2018-07-25 14:14:55,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:14:55,326 INFO L472 AbstractCegarLoop]: Abstraction has 69 states and 121 transitions. [2018-07-25 14:14:55,326 INFO L473 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-07-25 14:14:55,326 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 121 transitions. [2018-07-25 14:14:55,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2018-07-25 14:14:55,328 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:14:55,328 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 14:14:55,328 INFO L415 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:14:55,328 INFO L82 PathProgramCache]: Analyzing trace with hash -1051119547, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:14:55,342 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:14:58,423 WARN L169 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-07-25 14:15:00,819 WARN L169 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-07-25 14:15:01,762 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:15:01,763 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 14:15:01,763 INFO L451 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-25 14:15:01,763 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-25 14:15:01,764 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2018-07-25 14:15:01,766 INFO L87 Difference]: Start difference. First operand 69 states and 121 transitions. Second operand 6 states. [2018-07-25 14:15:02,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:15:02,420 INFO L93 Difference]: Finished difference Result 101 states and 177 transitions. [2018-07-25 14:15:02,420 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-07-25 14:15:02,421 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 52 [2018-07-25 14:15:02,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:15:02,423 INFO L225 Difference]: With dead ends: 101 [2018-07-25 14:15:02,423 INFO L226 Difference]: Without dead ends: 99 [2018-07-25 14:15:02,424 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 14317 GetRequests, 14262 SyntacticMatches, 36 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 435 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=122, Invalid=298, Unknown=0, NotChecked=0, Total=420 [2018-07-25 14:15:02,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2018-07-25 14:15:02,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 61. [2018-07-25 14:15:02,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2018-07-25 14:15:02,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 107 transitions. [2018-07-25 14:15:02,440 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 107 transitions. Word has length 52 [2018-07-25 14:15:02,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:15:02,441 INFO L472 AbstractCegarLoop]: Abstraction has 61 states and 107 transitions. [2018-07-25 14:15:02,441 INFO L473 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-25 14:15:02,441 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 107 transitions. [2018-07-25 14:15:02,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2018-07-25 14:15:02,443 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:15:02,443 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 14:15:02,443 INFO L415 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:15:02,443 INFO L82 PathProgramCache]: Analyzing trace with hash 1556916008, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:15:02,458 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:15:04,095 WARN L169 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 38 [2018-07-25 14:15:04,530 WARN L169 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2018-07-25 14:15:08,172 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:15:08,173 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-07-25 14:15:08,174 INFO L451 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-07-25 14:15:08,174 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-07-25 14:15:08,174 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2018-07-25 14:15:08,175 INFO L87 Difference]: Start difference. First operand 61 states and 107 transitions. Second operand 6 states. [2018-07-25 14:15:08,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:15:08,505 INFO L93 Difference]: Finished difference Result 119 states and 210 transitions. [2018-07-25 14:15:08,506 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-07-25 14:15:08,506 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 56 [2018-07-25 14:15:08,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:15:08,509 INFO L225 Difference]: With dead ends: 119 [2018-07-25 14:15:08,510 INFO L226 Difference]: Without dead ends: 117 [2018-07-25 14:15:08,511 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 15982 GetRequests, 15935 SyntacticMatches, 33 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2018-07-25 14:15:08,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2018-07-25 14:15:08,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 107. [2018-07-25 14:15:08,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2018-07-25 14:15:08,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 191 transitions. [2018-07-25 14:15:08,549 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 191 transitions. Word has length 56 [2018-07-25 14:15:08,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:15:08,550 INFO L472 AbstractCegarLoop]: Abstraction has 107 states and 191 transitions. [2018-07-25 14:15:08,550 INFO L473 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-07-25 14:15:08,550 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 191 transitions. [2018-07-25 14:15:08,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2018-07-25 14:15:08,552 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:15:08,552 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 14:15:08,553 INFO L415 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:15:08,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1118744478, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:15:08,563 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:15:11,413 WARN L169 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-07-25 14:15:12,893 WARN L169 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2018-07-25 14:15:14,471 WARN L169 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-07-25 14:15:17,249 WARN L169 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2018-07-25 14:15:18,462 WARN L169 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-07-25 14:15:26,153 WARN L169 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-07-25 14:15:28,981 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:15:28,981 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-25 14:15:28,982 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 14:15:28,982 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 14:15:28,983 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=624, Unknown=0, NotChecked=0, Total=870 [2018-07-25 14:15:28,983 INFO L87 Difference]: Start difference. First operand 107 states and 191 transitions. Second operand 7 states. [2018-07-25 14:15:29,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:15:29,602 INFO L93 Difference]: Finished difference Result 155 states and 275 transitions. [2018-07-25 14:15:29,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-25 14:15:29,603 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2018-07-25 14:15:29,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:15:29,605 INFO L225 Difference]: With dead ends: 155 [2018-07-25 14:15:29,606 INFO L226 Difference]: Without dead ends: 153 [2018-07-25 14:15:29,607 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 36468 GetRequests, 36389 SyntacticMatches, 51 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1005 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=246, Invalid=624, Unknown=0, NotChecked=0, Total=870 [2018-07-25 14:15:29,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2018-07-25 14:15:29,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 86. [2018-07-25 14:15:29,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2018-07-25 14:15:29,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 153 transitions. [2018-07-25 14:15:29,633 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 153 transitions. Word has length 64 [2018-07-25 14:15:29,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:15:29,633 INFO L472 AbstractCegarLoop]: Abstraction has 86 states and 153 transitions. [2018-07-25 14:15:29,633 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 14:15:29,633 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 153 transitions. [2018-07-25 14:15:29,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2018-07-25 14:15:29,635 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:15:29,635 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 14:15:29,635 INFO L415 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:15:29,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1764571200, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:15:29,655 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:15:34,985 WARN L169 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-07-25 14:15:41,013 WARN L169 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-07-25 14:15:42,840 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:15:42,841 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-07-25 14:15:42,841 INFO L451 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-07-25 14:15:42,843 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-07-25 14:15:42,844 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2018-07-25 14:15:42,844 INFO L87 Difference]: Start difference. First operand 86 states and 153 transitions. Second operand 7 states. [2018-07-25 14:15:43,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:15:43,230 INFO L93 Difference]: Finished difference Result 156 states and 278 transitions. [2018-07-25 14:15:43,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-07-25 14:15:43,231 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 67 [2018-07-25 14:15:43,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:15:43,233 INFO L225 Difference]: With dead ends: 156 [2018-07-25 14:15:43,233 INFO L226 Difference]: Without dead ends: 154 [2018-07-25 14:15:43,234 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 32978 GetRequests, 32918 SyntacticMatches, 42 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 418 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2018-07-25 14:15:43,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2018-07-25 14:15:43,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 143. [2018-07-25 14:15:43,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2018-07-25 14:15:43,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 257 transitions. [2018-07-25 14:15:43,282 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 257 transitions. Word has length 67 [2018-07-25 14:15:43,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:15:43,282 INFO L472 AbstractCegarLoop]: Abstraction has 143 states and 257 transitions. [2018-07-25 14:15:43,282 INFO L473 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-07-25 14:15:43,282 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 257 transitions. [2018-07-25 14:15:43,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2018-07-25 14:15:43,284 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:15:43,284 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 14:15:43,285 INFO L415 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:15:43,285 INFO L82 PathProgramCache]: Analyzing trace with hash 2065197578, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:15:43,295 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:15:43,776 WARN L169 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 32 [2018-07-25 14:15:46,038 WARN L169 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2018-07-25 14:15:46,386 WARN L169 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-07-25 14:15:47,811 WARN L169 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2018-07-25 14:15:49,385 WARN L169 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-07-25 14:15:52,250 WARN L169 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2018-07-25 14:15:53,632 WARN L169 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-07-25 14:15:54,010 WARN L169 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-07-25 14:15:57,463 WARN L169 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2018-07-25 14:16:02,817 WARN L169 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-07-25 14:16:08,205 WARN L169 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2018-07-25 14:16:10,883 WARN L169 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2018-07-25 14:16:29,629 WARN L169 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2018-07-25 14:16:36,114 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:16:36,114 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-07-25 14:16:36,115 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 14:16:36,115 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 14:16:36,115 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=413, Invalid=1069, Unknown=0, NotChecked=0, Total=1482 [2018-07-25 14:16:36,116 INFO L87 Difference]: Start difference. First operand 143 states and 257 transitions. Second operand 8 states. [2018-07-25 14:16:36,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:16:36,679 INFO L93 Difference]: Finished difference Result 219 states and 392 transitions. [2018-07-25 14:16:36,679 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-25 14:16:36,679 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 75 [2018-07-25 14:16:36,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:16:36,681 INFO L225 Difference]: With dead ends: 219 [2018-07-25 14:16:36,681 INFO L226 Difference]: Without dead ends: 217 [2018-07-25 14:16:36,683 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 72947 GetRequests, 72843 SyntacticMatches, 67 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1794 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=413, Invalid=1069, Unknown=0, NotChecked=0, Total=1482 [2018-07-25 14:16:36,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2018-07-25 14:16:36,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 110. [2018-07-25 14:16:36,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2018-07-25 14:16:36,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 197 transitions. [2018-07-25 14:16:36,717 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 197 transitions. Word has length 75 [2018-07-25 14:16:36,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:16:36,718 INFO L472 AbstractCegarLoop]: Abstraction has 110 states and 197 transitions. [2018-07-25 14:16:36,718 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 14:16:36,718 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 197 transitions. [2018-07-25 14:16:36,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2018-07-25 14:16:36,719 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:16:36,719 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 14:16:36,720 INFO L415 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:16:36,720 INFO L82 PathProgramCache]: Analyzing trace with hash -1870365168, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:16:36,732 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:16:41,526 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2018-07-25 14:16:41,835 WARN L169 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-07-25 14:16:47,836 WARN L169 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-07-25 14:16:49,109 WARN L169 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2018-07-25 14:17:00,799 WARN L169 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2018-07-25 14:17:04,465 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:17:04,466 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-07-25 14:17:04,466 INFO L451 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-07-25 14:17:04,466 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-07-25 14:17:04,466 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2018-07-25 14:17:04,467 INFO L87 Difference]: Start difference. First operand 110 states and 197 transitions. Second operand 8 states. [2018-07-25 14:17:04,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:17:04,972 INFO L93 Difference]: Finished difference Result 204 states and 366 transitions. [2018-07-25 14:17:04,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-07-25 14:17:04,972 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 77 [2018-07-25 14:17:04,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:17:04,974 INFO L225 Difference]: With dead ends: 204 [2018-07-25 14:17:04,974 INFO L226 Difference]: Without dead ends: 202 [2018-07-25 14:17:04,975 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 57596 GetRequests, 57524 SyntacticMatches, 50 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 631 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=161, Invalid=391, Unknown=0, NotChecked=0, Total=552 [2018-07-25 14:17:04,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2018-07-25 14:17:05,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 189. [2018-07-25 14:17:05,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2018-07-25 14:17:05,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 341 transitions. [2018-07-25 14:17:05,036 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 341 transitions. Word has length 77 [2018-07-25 14:17:05,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:17:05,037 INFO L472 AbstractCegarLoop]: Abstraction has 189 states and 341 transitions. [2018-07-25 14:17:05,037 INFO L473 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-07-25 14:17:05,037 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 341 transitions. [2018-07-25 14:17:05,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2018-07-25 14:17:05,038 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:17:05,038 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 14:17:05,039 INFO L415 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:17:05,039 INFO L82 PathProgramCache]: Analyzing trace with hash -1151632550, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:17:05,051 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:17:08,386 WARN L169 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-07-25 14:17:09,938 WARN L169 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2018-07-25 14:17:11,594 WARN L169 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-07-25 14:17:14,526 WARN L169 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2018-07-25 14:17:15,588 WARN L169 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2018-07-25 14:17:15,974 WARN L169 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-07-25 14:17:16,347 WARN L169 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-07-25 14:17:20,836 WARN L169 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2018-07-25 14:17:26,998 WARN L169 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2018-07-25 14:17:33,130 WARN L169 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2018-07-25 14:17:36,122 WARN L169 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2018-07-25 14:17:36,758 WARN L169 SmtUtils]: Spent 321.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2018-07-25 14:17:42,719 WARN L169 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-07-25 14:17:59,974 WARN L169 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2018-07-25 14:18:08,416 WARN L169 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2018-07-25 14:18:12,935 WARN L169 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2018-07-25 14:18:13,782 WARN L169 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2018-07-25 14:18:52,602 WARN L169 SmtUtils]: Spent 425.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2018-07-25 14:19:05,929 INFO L309 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-07-25 14:19:05,930 INFO L324 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-07-25 14:19:05,930 INFO L451 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-07-25 14:19:05,930 INFO L132 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-07-25 14:19:05,931 INFO L133 InterpolantAutomaton]: CoverageRelationStatistics Valid=623, Invalid=1633, Unknown=0, NotChecked=0, Total=2256 [2018-07-25 14:19:05,931 INFO L87 Difference]: Start difference. First operand 189 states and 341 transitions. Second operand 9 states. [2018-07-25 14:19:06,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-07-25 14:19:06,635 INFO L93 Difference]: Finished difference Result 305 states and 549 transitions. [2018-07-25 14:19:06,635 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-07-25 14:19:06,635 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 85 [2018-07-25 14:19:06,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-07-25 14:19:06,639 INFO L225 Difference]: With dead ends: 305 [2018-07-25 14:19:06,639 INFO L226 Difference]: Without dead ends: 303 [2018-07-25 14:19:06,641 INFO L574 BasicCegarLoop]: 0 DeclaredPredicates, 125506 GetRequests, 125379 SyntacticMatches, 81 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2762 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=623, Invalid=1633, Unknown=0, NotChecked=0, Total=2256 [2018-07-25 14:19:06,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2018-07-25 14:19:06,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 145. [2018-07-25 14:19:06,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2018-07-25 14:19:06,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 261 transitions. [2018-07-25 14:19:06,692 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 261 transitions. Word has length 85 [2018-07-25 14:19:06,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-07-25 14:19:06,692 INFO L472 AbstractCegarLoop]: Abstraction has 145 states and 261 transitions. [2018-07-25 14:19:06,692 INFO L473 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-07-25 14:19:06,692 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 261 transitions. [2018-07-25 14:19:06,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2018-07-25 14:19:06,693 INFO L346 BasicCegarLoop]: Found error trace [2018-07-25 14:19:06,693 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 14:19:06,694 INFO L415 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-07-25 14:19:06,694 INFO L82 PathProgramCache]: Analyzing trace with hash 1384025266, now seen corresponding path program 1 times No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:19:06,703 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-07-25 14:19:12,237 WARN L169 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-07-25 14:19:18,877 WARN L169 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2018-07-25 14:19:20,486 WARN L169 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 61 Received shutdown request... [2018-07-25 14:19:26,956 WARN L513 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-07-25 14:19:26,957 WARN L541 AbstractCegarLoop]: Verification canceled [2018-07-25 14:19:26,963 WARN L202 ceAbstractionStarter]: Timeout [2018-07-25 14:19:26,964 INFO L202 PluginConnector]: Adding new model s3_srvr_1.cil.c_23.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.07 02:19:26 BoogieIcfgContainer [2018-07-25 14:19:26,966 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-07-25 14:19:26,967 INFO L168 Benchmark]: Toolchain (without parser) took 280318.65 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -88.1 MB). Free memory was 1.5 GB in the beginning and 1.2 GB in the end (delta: 277.5 MB). Peak memory consumption was 189.4 MB. Max. memory is 7.1 GB. [2018-07-25 14:19:26,968 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.15 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 14:19:26,969 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.52 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 14:19:26,969 INFO L168 Benchmark]: Boogie Preprocessor took 57.89 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 14:19:26,969 INFO L168 Benchmark]: RCFGBuilder took 911.50 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. [2018-07-25 14:19:26,970 INFO L168 Benchmark]: TraceAbstraction took 279297.17 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -88.1 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 235.2 MB). Peak memory consumption was 147.1 MB. Max. memory is 7.1 GB. [2018-07-25 14:19:26,975 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 0.15 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 47.52 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 57.89 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 911.50 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: 42.3 MB). Peak memory consumption was 42.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 279297.17 ms. Allocated memory was 1.5 GB in the beginning and 1.4 GB in the end (delta: -88.1 MB). Free memory was 1.4 GB in the beginning and 1.2 GB in the end (delta: 235.2 MB). Peak memory consumption was 147.1 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, 279.2s OverallTime, 11 OverallIterations, 7 TraceHistogramMax, 5.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 250 SDtfs, 807 SDslu, 45 SDs, 0 SdLazy, 927 SolverSat, 518 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 366176 GetRequests, 365555 SyntacticMatches, 413 SemanticMatches, 208 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7470 ImplicationChecksByTransitivity, 35.0s 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: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 428 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 253.0s 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-z3.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-07-25_14-19-26-990.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_srvr_1.cil.c_23.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-07-25_14-19-26-990.csv Completed graceful shutdown