java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml --generate-csv --csv-dir csv -s ../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf -i ../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_3.cil.c_20.bpl -------------------------------------------------------------------------------- This is Ultimate 0.1.23-ff8eab6 [2018-09-26 09:07:12,437 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-26 09:07:12,439 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-26 09:07:12,451 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-26 09:07:12,451 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-26 09:07:12,452 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-26 09:07:12,454 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-26 09:07:12,456 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-26 09:07:12,457 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-26 09:07:12,458 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-26 09:07:12,459 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-26 09:07:12,459 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-26 09:07:12,460 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-26 09:07:12,461 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-26 09:07:12,463 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-26 09:07:12,463 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-26 09:07:12,464 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-26 09:07:12,466 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-26 09:07:12,468 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-26 09:07:12,470 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-26 09:07:12,471 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-26 09:07:12,472 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-26 09:07:12,475 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-09-26 09:07:12,475 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-09-26 09:07:12,475 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-09-26 09:07:12,476 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-09-26 09:07:12,477 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-09-26 09:07:12,478 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-09-26 09:07:12,479 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-09-26 09:07:12,480 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-09-26 09:07:12,480 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-09-26 09:07:12,481 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... 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[2018-09-26 09:07:12,487 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/Pdr/AutomizerBpl-pdr-z3.epf [2018-09-26 09:07:12,501 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-26 09:07:12,502 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-26 09:07:12,503 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-26 09:07:12,504 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=PDR [2018-09-26 09:07:12,504 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-26 09:07:12,504 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 09:07:12,504 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-26 09:07:12,557 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-26 09:07:12,581 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-26 09:07:12,589 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-26 09:07:12,590 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2018-09-26 09:07:12,591 INFO L276 PluginConnector]: Boogie PL CUP Parser initialized [2018-09-26 09:07:12,591 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_3.cil.c_20.bpl [2018-09-26 09:07:12,592 INFO L111 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/programs/20170304-DifficultPathPrograms/s3_srvr_3.cil.c_20.bpl' [2018-09-26 09:07:12,668 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-26 09:07:12,672 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2018-09-26 09:07:12,673 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-26 09:07:12,675 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-26 09:07:12,675 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-26 09:07:12,696 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:07:12" (1/1) ... [2018-09-26 09:07:12,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:07:12" (1/1) ... [2018-09-26 09:07:12,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-26 09:07:12,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-26 09:07:12,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-26 09:07:12,733 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-26 09:07:12,744 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:07:12" (1/1) ... [2018-09-26 09:07:12,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:07:12" (1/1) ... [2018-09-26 09:07:12,749 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:07:12" (1/1) ... [2018-09-26 09:07:12,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:07:12" (1/1) ... [2018-09-26 09:07:12,759 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:07:12" (1/1) ... [2018-09-26 09:07:12,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:07:12" (1/1) ... [2018-09-26 09:07:12,765 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:07:12" (1/1) ... [2018-09-26 09:07:12,769 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-26 09:07:12,770 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-26 09:07:12,770 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-26 09:07:12,770 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-26 09:07:12,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:07:12" (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 [2018-09-26 09:07:12,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-26 09:07:12,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-26 09:07:13,648 INFO L346 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-26 09:07:13,649 INFO L202 PluginConnector]: Adding new model s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:07:13 BoogieIcfgContainer [2018-09-26 09:07:13,649 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-26 09:07:13,650 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-09-26 09:07:13,650 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-09-26 09:07:13,654 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-09-26 09:07:13,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 26.09 09:07:12" (1/2) ... [2018-09-26 09:07:13,656 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4980a738 and model type s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.09 09:07:13, skipping insertion in model container [2018-09-26 09:07:13,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.09 09:07:13" (2/2) ... [2018-09-26 09:07:13,658 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_srvr_3.cil.c_20.bpl [2018-09-26 09:07:13,668 INFO L137 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:PDR Determinization: PREDICATE_ABSTRACTION [2018-09-26 09:07:13,678 INFO L149 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-09-26 09:07:13,729 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-09-26 09:07:13,730 INFO L381 AbstractCegarLoop]: Interprodecural is true [2018-09-26 09:07:13,730 INFO L382 AbstractCegarLoop]: Hoare is true [2018-09-26 09:07:13,730 INFO L383 AbstractCegarLoop]: Compute interpolants for PDR [2018-09-26 09:07:13,730 INFO L384 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-09-26 09:07:13,730 INFO L385 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-09-26 09:07:13,730 INFO L386 AbstractCegarLoop]: Difference is false [2018-09-26 09:07:13,731 INFO L387 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-09-26 09:07:13,731 INFO L392 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-09-26 09:07:13,747 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-09-26 09:07:13,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-09-26 09:07:13,756 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:07:13,757 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:07:13,758 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:07:13,764 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:07:13,765 INFO L82 PathProgramCache]: Analyzing trace with hash -505433777, 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 [2018-09-26 09:07:13,791 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:07:14,309 WARN L178 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 14 [2018-09-26 09:07:15,214 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:07:15,214 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-09-26 09:07:15,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-09-26 09:07:15,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-09-26 09:07:15,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-26 09:07:15,230 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 4 states. [2018-09-26 09:07:15,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:07:15,550 INFO L93 Difference]: Finished difference Result 47 states and 81 transitions. [2018-09-26 09:07:15,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-09-26 09:07:15,552 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2018-09-26 09:07:15,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:07:15,566 INFO L225 Difference]: With dead ends: 47 [2018-09-26 09:07:15,566 INFO L226 Difference]: Without dead ends: 44 [2018-09-26 09:07:15,570 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 854 GetRequests, 839 SyntacticMatches, 11 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-09-26 09:07:15,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-09-26 09:07:15,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-09-26 09:07:15,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-09-26 09:07:15,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 77 transitions. [2018-09-26 09:07:15,617 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 77 transitions. Word has length 15 [2018-09-26 09:07:15,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:07:15,617 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 77 transitions. [2018-09-26 09:07:15,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-09-26 09:07:15,618 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 77 transitions. [2018-09-26 09:07:15,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2018-09-26 09:07:15,619 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:07:15,620 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:07:15,620 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:07:15,621 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:07:15,621 INFO L82 PathProgramCache]: Analyzing trace with hash 339867494, 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 [2018-09-26 09:07:15,636 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:07:15,943 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 14 [2018-09-26 09:07:16,691 WARN L178 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-09-26 09:07:17,543 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:07:17,543 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-26 09:07:17,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 09:07:17,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 09:07:17,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-09-26 09:07:17,547 INFO L87 Difference]: Start difference. First operand 44 states and 77 transitions. Second operand 6 states. [2018-09-26 09:07:17,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:07:17,860 INFO L93 Difference]: Finished difference Result 60 states and 104 transitions. [2018-09-26 09:07:17,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-09-26 09:07:17,860 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 35 [2018-09-26 09:07:17,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:07:17,862 INFO L225 Difference]: With dead ends: 60 [2018-09-26 09:07:17,862 INFO L226 Difference]: Without dead ends: 58 [2018-09-26 09:07:17,864 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3162 GetRequests, 3135 SyntacticMatches, 17 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2018-09-26 09:07:17,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2018-09-26 09:07:17,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 44. [2018-09-26 09:07:17,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-09-26 09:07:17,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 77 transitions. [2018-09-26 09:07:17,875 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 77 transitions. Word has length 35 [2018-09-26 09:07:17,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:07:17,876 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 77 transitions. [2018-09-26 09:07:17,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 09:07:17,876 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 77 transitions. [2018-09-26 09:07:17,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2018-09-26 09:07:17,877 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:07:17,878 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1] [2018-09-26 09:07:17,878 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:07:17,878 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:07:17,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1742811576, 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 [2018-09-26 09:07:17,894 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:07:22,437 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:07:22,438 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-09-26 09:07:22,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-09-26 09:07:22,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-09-26 09:07:22,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2018-09-26 09:07:22,439 INFO L87 Difference]: Start difference. First operand 44 states and 77 transitions. Second operand 6 states. [2018-09-26 09:07:23,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:07:23,168 INFO L93 Difference]: Finished difference Result 98 states and 173 transitions. [2018-09-26 09:07:23,168 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-09-26 09:07:23,168 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 40 [2018-09-26 09:07:23,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:07:23,171 INFO L225 Difference]: With dead ends: 98 [2018-09-26 09:07:23,174 INFO L226 Difference]: Without dead ends: 96 [2018-09-26 09:07:23,174 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 14493 GetRequests, 14446 SyntacticMatches, 32 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 260 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2018-09-26 09:07:23,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2018-09-26 09:07:23,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 89. [2018-09-26 09:07:23,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2018-09-26 09:07:23,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 159 transitions. [2018-09-26 09:07:23,203 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 159 transitions. Word has length 40 [2018-09-26 09:07:23,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:07:23,203 INFO L480 AbstractCegarLoop]: Abstraction has 89 states and 159 transitions. [2018-09-26 09:07:23,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-09-26 09:07:23,204 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 159 transitions. [2018-09-26 09:07:23,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2018-09-26 09:07:23,205 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:07:23,206 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:07:23,206 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:07:23,206 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:07:23,206 INFO L82 PathProgramCache]: Analyzing trace with hash 1365476994, 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 [2018-09-26 09:07:23,225 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:07:27,286 WARN L178 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-09-26 09:07:30,884 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-09-26 09:07:31,904 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-09-26 09:07:38,724 WARN L178 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-09-26 09:07:41,101 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:07:41,101 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-26 09:07:41,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-26 09:07:41,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-26 09:07:41,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=633, Unknown=0, NotChecked=0, Total=870 [2018-09-26 09:07:41,103 INFO L87 Difference]: Start difference. First operand 89 states and 159 transitions. Second operand 7 states. [2018-09-26 09:07:41,357 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2018-09-26 09:07:42,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:07:42,792 INFO L93 Difference]: Finished difference Result 134 states and 238 transitions. [2018-09-26 09:07:42,793 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-26 09:07:42,793 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 48 [2018-09-26 09:07:42,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:07:42,795 INFO L225 Difference]: With dead ends: 134 [2018-09-26 09:07:42,795 INFO L226 Difference]: Without dead ends: 132 [2018-09-26 09:07:42,796 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 33574 GetRequests, 33494 SyntacticMatches, 50 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1090 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=279, Invalid=713, Unknown=0, NotChecked=0, Total=992 [2018-09-26 09:07:42,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2018-09-26 09:07:42,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 81. [2018-09-26 09:07:42,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2018-09-26 09:07:42,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 145 transitions. [2018-09-26 09:07:42,832 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 145 transitions. Word has length 48 [2018-09-26 09:07:42,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:07:42,833 INFO L480 AbstractCegarLoop]: Abstraction has 81 states and 145 transitions. [2018-09-26 09:07:42,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-26 09:07:42,833 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 145 transitions. [2018-09-26 09:07:42,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2018-09-26 09:07:42,835 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:07:42,835 INFO L375 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:07:42,835 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:07:42,836 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:07:42,836 INFO L82 PathProgramCache]: Analyzing trace with hash -1043959768, 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 [2018-09-26 09:07:42,851 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:07:47,019 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-09-26 09:07:52,224 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-09-26 09:07:53,720 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:07:53,721 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-09-26 09:07:53,721 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-09-26 09:07:53,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-09-26 09:07:53,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2018-09-26 09:07:53,722 INFO L87 Difference]: Start difference. First operand 81 states and 145 transitions. Second operand 7 states. [2018-09-26 09:07:53,904 WARN L178 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2018-09-26 09:07:54,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:07:54,708 INFO L93 Difference]: Finished difference Result 185 states and 332 transitions. [2018-09-26 09:07:54,709 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-09-26 09:07:54,710 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 51 [2018-09-26 09:07:54,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:07:54,712 INFO L225 Difference]: With dead ends: 185 [2018-09-26 09:07:54,712 INFO L226 Difference]: Without dead ends: 183 [2018-09-26 09:07:54,713 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 30237 GetRequests, 30176 SyntacticMatches, 41 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 451 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=130, Invalid=332, Unknown=0, NotChecked=0, Total=462 [2018-09-26 09:07:54,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2018-09-26 09:07:54,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 173. [2018-09-26 09:07:54,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2018-09-26 09:07:54,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 313 transitions. [2018-09-26 09:07:54,783 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 313 transitions. Word has length 51 [2018-09-26 09:07:54,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:07:54,784 INFO L480 AbstractCegarLoop]: Abstraction has 173 states and 313 transitions. [2018-09-26 09:07:54,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-09-26 09:07:54,784 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 313 transitions. [2018-09-26 09:07:54,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2018-09-26 09:07:54,786 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:07:54,787 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:07:54,787 INFO L423 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:07:54,787 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:07:54,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1888216802, 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 [2018-09-26 09:07:54,799 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:07:58,403 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-09-26 09:08:01,947 WARN L178 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-09-26 09:08:02,962 WARN L178 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-09-26 09:08:03,311 WARN L178 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-09-26 09:08:06,072 WARN L178 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2018-09-26 09:08:10,891 WARN L178 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-09-26 09:08:15,811 WARN L178 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2018-09-26 09:08:18,138 WARN L178 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2018-09-26 09:08:35,409 WARN L178 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2018-09-26 09:08:41,867 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:08:41,868 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-26 09:08:41,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-26 09:08:41,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-26 09:08:41,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=395, Invalid=1087, Unknown=0, NotChecked=0, Total=1482 [2018-09-26 09:08:41,873 INFO L87 Difference]: Start difference. First operand 173 states and 313 transitions. Second operand 8 states. [2018-09-26 09:08:42,283 WARN L178 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2018-09-26 09:08:42,907 WARN L178 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2018-09-26 09:08:43,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:08:43,283 INFO L93 Difference]: Finished difference Result 261 states and 470 transitions. [2018-09-26 09:08:43,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-26 09:08:43,284 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 59 [2018-09-26 09:08:43,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:08:43,288 INFO L225 Difference]: With dead ends: 261 [2018-09-26 09:08:43,288 INFO L226 Difference]: Without dead ends: 259 [2018-09-26 09:08:43,289 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 67672 GetRequests, 67567 SyntacticMatches, 65 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1927 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=467, Invalid=1255, Unknown=0, NotChecked=0, Total=1722 [2018-09-26 09:08:43,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2018-09-26 09:08:43,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 128. [2018-09-26 09:08:43,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2018-09-26 09:08:43,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 231 transitions. [2018-09-26 09:08:43,328 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 231 transitions. Word has length 59 [2018-09-26 09:08:43,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:08:43,328 INFO L480 AbstractCegarLoop]: Abstraction has 128 states and 231 transitions. [2018-09-26 09:08:43,329 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-26 09:08:43,329 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 231 transitions. [2018-09-26 09:08:43,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2018-09-26 09:08:43,331 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:08:43,333 INFO L375 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:08:43,333 INFO L423 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:08:43,333 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:08:43,334 INFO L82 PathProgramCache]: Analyzing trace with hash 1864751960, 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 [2018-09-26 09:08:43,342 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:08:47,835 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-09-26 09:08:52,957 WARN L178 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-09-26 09:08:53,971 WARN L178 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-09-26 09:09:03,416 WARN L178 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-09-26 09:09:06,209 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:09:06,210 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-09-26 09:09:06,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-09-26 09:09:06,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-09-26 09:09:06,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2018-09-26 09:09:06,211 INFO L87 Difference]: Start difference. First operand 128 states and 231 transitions. Second operand 8 states. [2018-09-26 09:09:06,476 WARN L178 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2018-09-26 09:09:06,718 WARN L178 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2018-09-26 09:09:07,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:09:07,478 INFO L93 Difference]: Finished difference Result 268 states and 484 transitions. [2018-09-26 09:09:07,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-09-26 09:09:07,479 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 61 [2018-09-26 09:09:07,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:09:07,481 INFO L225 Difference]: With dead ends: 268 [2018-09-26 09:09:07,482 INFO L226 Difference]: Without dead ends: 266 [2018-09-26 09:09:07,482 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 53211 GetRequests, 53137 SyntacticMatches, 49 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 670 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=194, Invalid=508, Unknown=0, NotChecked=0, Total=702 [2018-09-26 09:09:07,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2018-09-26 09:09:07,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 252. [2018-09-26 09:09:07,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 252 states. [2018-09-26 09:09:07,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 457 transitions. [2018-09-26 09:09:07,559 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 457 transitions. Word has length 61 [2018-09-26 09:09:07,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:09:07,559 INFO L480 AbstractCegarLoop]: Abstraction has 252 states and 457 transitions. [2018-09-26 09:09:07,559 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-09-26 09:09:07,559 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 457 transitions. [2018-09-26 09:09:07,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2018-09-26 09:09:07,562 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:09:07,562 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:09:07,562 INFO L423 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:09:07,563 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:09:07,563 INFO L82 PathProgramCache]: Analyzing trace with hash -240826162, 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 [2018-09-26 09:09:07,574 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:09:11,281 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-09-26 09:09:15,240 WARN L178 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-09-26 09:09:16,372 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-09-26 09:09:16,655 WARN L178 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-09-26 09:09:19,432 WARN L178 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2018-09-26 09:09:23,733 WARN L178 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-09-26 09:09:28,351 WARN L178 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2018-09-26 09:09:30,596 WARN L178 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-09-26 09:09:31,255 WARN L178 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2018-09-26 09:09:35,688 WARN L178 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2018-09-26 09:09:48,735 WARN L178 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2018-09-26 09:09:55,982 WARN L178 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2018-09-26 09:10:00,360 WARN L178 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2018-09-26 09:10:32,042 WARN L178 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2018-09-26 09:10:43,105 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:10:43,106 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-26 09:10:43,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-26 09:10:43,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-26 09:10:43,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=596, Invalid=1660, Unknown=0, NotChecked=0, Total=2256 [2018-09-26 09:10:43,108 INFO L87 Difference]: Start difference. First operand 252 states and 457 transitions. Second operand 9 states. [2018-09-26 09:10:43,633 WARN L178 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2018-09-26 09:10:43,896 WARN L178 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2018-09-26 09:10:44,493 WARN L178 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2018-09-26 09:10:45,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:10:45,104 INFO L93 Difference]: Finished difference Result 406 states and 735 transitions. [2018-09-26 09:10:45,104 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-26 09:10:45,104 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 69 [2018-09-26 09:10:45,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:10:45,108 INFO L225 Difference]: With dead ends: 406 [2018-09-26 09:10:45,108 INFO L226 Difference]: Without dead ends: 404 [2018-09-26 09:10:45,110 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 117074 GetRequests, 116945 SyntacticMatches, 79 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2944 ImplicationChecksByTransitivity, 10.0s TimeCoverageRelationStatistics Valid=701, Invalid=1951, Unknown=0, NotChecked=0, Total=2652 [2018-09-26 09:10:45,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2018-09-26 09:10:45,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 185. [2018-09-26 09:10:45,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2018-09-26 09:10:45,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 335 transitions. [2018-09-26 09:10:45,173 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 335 transitions. Word has length 69 [2018-09-26 09:10:45,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:10:45,174 INFO L480 AbstractCegarLoop]: Abstraction has 185 states and 335 transitions. [2018-09-26 09:10:45,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-26 09:10:45,174 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 335 transitions. [2018-09-26 09:10:45,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2018-09-26 09:10:45,175 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:10:45,176 INFO L375 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:10:45,176 INFO L423 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:10:45,177 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:10:45,177 INFO L82 PathProgramCache]: Analyzing trace with hash 2078757358, 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 [2018-09-26 09:10:45,192 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:10:46,553 WARN L178 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2018-09-26 09:10:46,955 WARN L178 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2018-09-26 09:10:50,113 WARN L178 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-09-26 09:10:56,256 WARN L178 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-09-26 09:10:57,275 WARN L178 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2018-09-26 09:10:57,575 WARN L178 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-09-26 09:11:08,113 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-09-26 09:11:09,827 WARN L178 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2018-09-26 09:11:10,256 WARN L178 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2018-09-26 09:11:24,837 WARN L178 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2018-09-26 09:11:29,672 INFO L313 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-09-26 09:11:29,673 INFO L328 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2018-09-26 09:11:29,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-09-26 09:11:29,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-09-26 09:11:29,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=203, Invalid=553, Unknown=0, NotChecked=0, Total=756 [2018-09-26 09:11:29,674 INFO L87 Difference]: Start difference. First operand 185 states and 335 transitions. Second operand 9 states. [2018-09-26 09:11:30,069 WARN L178 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2018-09-26 09:11:30,434 WARN L178 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2018-09-26 09:11:31,056 WARN L178 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2018-09-26 09:11:31,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-09-26 09:11:31,285 INFO L93 Difference]: Finished difference Result 353 states and 640 transitions. [2018-09-26 09:11:31,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-09-26 09:11:31,285 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 70 [2018-09-26 09:11:31,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-09-26 09:11:31,289 INFO L225 Difference]: With dead ends: 353 [2018-09-26 09:11:31,289 INFO L226 Difference]: Without dead ends: 351 [2018-09-26 09:11:31,291 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 83536 GetRequests, 83450 SyntacticMatches, 56 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 910 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=271, Invalid=721, Unknown=0, NotChecked=0, Total=992 [2018-09-26 09:11:31,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2018-09-26 09:11:31,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 331. [2018-09-26 09:11:31,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2018-09-26 09:11:31,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 601 transitions. [2018-09-26 09:11:31,408 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 601 transitions. Word has length 70 [2018-09-26 09:11:31,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-09-26 09:11:31,408 INFO L480 AbstractCegarLoop]: Abstraction has 331 states and 601 transitions. [2018-09-26 09:11:31,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-09-26 09:11:31,408 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 601 transitions. [2018-09-26 09:11:31,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2018-09-26 09:11:31,410 INFO L367 BasicCegarLoop]: Found error trace [2018-09-26 09:11:31,410 INFO L375 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-09-26 09:11:31,411 INFO L423 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2018-09-26 09:11:31,411 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-09-26 09:11:31,411 INFO L82 PathProgramCache]: Analyzing trace with hash 927770936, 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 [2018-09-26 09:11:31,420 INFO L69 tionRefinementEngine]: Using refinement strategy FixedRefinementStrategy [2018-09-26 09:11:31,977 WARN L178 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 26 [2018-09-26 09:11:35,391 WARN L178 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-09-26 09:11:39,655 WARN L178 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2018-09-26 09:11:40,798 WARN L178 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2018-09-26 09:11:41,094 WARN L178 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2018-09-26 09:11:44,214 WARN L178 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2018-09-26 09:11:49,297 WARN L178 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 58 Received shutdown request... [2018-09-26 09:11:54,256 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in [2018-09-26 09:11:54,257 WARN L549 AbstractCegarLoop]: Verification canceled [2018-09-26 09:11:54,263 WARN L206 ceAbstractionStarter]: Timeout [2018-09-26 09:11:54,264 INFO L202 PluginConnector]: Adding new model s3_srvr_3.cil.c_20.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.09 09:11:54 BoogieIcfgContainer [2018-09-26 09:11:54,264 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-09-26 09:11:54,265 INFO L168 Benchmark]: Toolchain (without parser) took 281596.65 ms. Allocated memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -12.6 MB). Free memory was 1.5 GB in the beginning and 1.3 GB in the end (delta: 169.3 MB). Peak memory consumption was 156.8 MB. Max. memory is 7.1 GB. [2018-09-26 09:11:54,266 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:11:54,266 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.39 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:11:54,267 INFO L168 Benchmark]: Boogie Preprocessor took 36.26 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-26 09:11:54,267 INFO L168 Benchmark]: RCFGBuilder took 879.29 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. [2018-09-26 09:11:54,268 INFO L168 Benchmark]: TraceAbstraction took 280613.94 ms. Allocated memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -12.6 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 127.1 MB). Peak memory consumption was 114.5 MB. Max. memory is 7.1 GB. [2018-09-26 09:11:54,273 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.18 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.39 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 36.26 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 879.29 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 280613.94 ms. Allocated memory was 1.5 GB in the beginning and 1.5 GB in the end (delta: -12.6 MB). Free memory was 1.4 GB in the beginning and 1.3 GB in the end (delta: 127.1 MB). Peak memory consumption was 114.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 506]: Timeout (TraceAbstraction) Unable to prove that assertion always holds (line 506). Cancelled while BasicCegarLoop was analyzing trace of length 79 with TraceHistMax 7, while Pdr was Timeout or canceled while running Pdr. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 1 error locations. TIMEOUT Result, 280.5s OverallTime, 10 OverallIterations, 7 TraceHistogramMax, 10.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 67 SDtfs, 1122 SDslu, 37 SDs, 0 SdLazy, 1006 SolverSat, 1113 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 403813 GetRequests, 403189 SyntacticMatches, 400 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8336 ImplicationChecksByTransitivity, 34.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=331occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 466 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 246.3s PdrRuntime, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_srvr_3.cil.c_20.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-Benchmark-0-2018-09-26_09-11-54-286.csv Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/s3_srvr_3.cil.c_20.bpl_AutomizerBpl-pdr-z3.epf_AutomizerBplInline.xml/Csv-TraceAbstractionBenchmarks-0-2018-09-26_09-11-54-286.csv Completed graceful shutdown